Tag solvents

n-pentane manufacturing plant

n-Pentane: a multifunctional organic chemical raw material

Summary:
n-Pentane is an important organic chemical raw material, with the chemical formula C5H12. This article will provide a scientific introduction to the properties, uses, storage methods, and applications of n-pentane in the chemical industry.

N-pentane, as a member of the alkane family, occupies an important position in the chemical industry due to its unique chemical properties and wide range of applications. Its chemical formula C5H12 indicates that n-pentane is composed of 5 carbon atoms and 12 hydrogen atoms, and belongs to a type of straight chain alkanes.

1、 The properties of n-pentane

n-Pentane is a colorless and transparent liquid with a lower boiling point (about 36 ° C) and is prone to volatilization. Its isomers include isopentane and neopentane, but the term “pentane” usually specifically refers to n-pentane. N-pentane has stable properties at room temperature, but is prone to combustion reactions at high temperatures or near ignition sources.

2、 The use of n-pentane

n-Pentane has a wide range of applications in the chemical industry. Firstly, it can be used as a low boiling solvent to dissolve some substances that are not easily soluble in water. Secondly, n-pentane is also an important foaming agent in the plastic industry, which can help plastic materials form a uniform foam structure. In addition, n-pentane can also be used as a fuel for automobiles and airplanes, and its high calorific value and good combustion performance make it an ideal energy choice.

In addition to the above applications, n-pentane also plays an important role in gas chromatography analysis and can be used as a standard substance or reference liquid. At the same time, it can also be used to manufacture chemicals such as synthetic pentanol and isopentane, providing raw material support for chemical production.

3、 Storage method of n-pentane

Due to the flammable and explosive properties of n-pentane, special attention should be paid during storage. Firstly, it should be stored in a cool and ventilated warehouse, away from flames and heat sources. The temperature of the warehouse should not exceed 29 ℃ to avoid fire or explosion accidents. Secondly, storage containers should be kept sealed to prevent the volatilization or leakage of n-pentane. In addition, n-pentane should be stored separately from oxidants and other substances to avoid chemical reactions.

Emergency leak handling equipment and appropriate containment materials should be equipped in the storage area, so that measures can be taken quickly for disposal in the event of a leak. At the same time, explosion-proof lighting and ventilation facilities should also be used to ensure the safety of the storage area.

4、 Summary

n-Pentane, as a multifunctional organic chemical raw material, plays an important role in the chemical industry. By understanding its properties, uses, and storage methods, we can better utilize n-pentane to provide support for chemical production. At the same time, we should also pay attention to its safe storage issues to ensure that no safety accidents occur during use.

Why China Customs Requires Class 3 Dangerous Goods Solvents to Use Steel Drums with a Tare Weight of at Least 19 KG

Abstract: Class 3 dangerous goods solvents, such as n-pentane, cyclopentane, n-hexane and n-heptane, are flammable liquids that pose a risk of fire and explosion during transport. China customs has issued new regulations that require these solvents to use steel drums with a tare weight of at least 19 kg, in order to ensure the safety and quality of the packaging. This article explains the rationale behind this requirement, and the implications for shippers and importers of class 3 dangerous goods solvents in China.

Keywords: China customs, class 3 dangerous goods, solvents, steel drums, tare weight

Article:

Class 3 dangerous goods solvents are liquids that have a flash point of not more than 60.5°C, or liquids that are transported or offered for transport at temperatures at or above their flash point[^1^][3]. Flash point is the lowest temperature at which a liquid can form a flammable mixture with air. Some examples of class 3 dangerous goods solvents are n-pentane, cyclopentane, n-hexane and n-heptane, which are widely used in the chemical, pharmaceutical, and manufacturing industries.

These solvents are hazardous because they can easily ignite and cause fire and explosion when exposed to heat, sparks, or flames. Therefore, they need to be transported in suitable packaging that can prevent leakage, withstand pressure, and resist impact. According to the international dangerous goods regulations for sea and air transport, the packaging of class 3 dangerous goods solvents must have a UN specification marking that indicates the material, type, category, capacity, test pressure, and year of manufacture of the packaging[^1^][3].

However, China customs has imposed additional requirements for the packaging of class 3 dangerous goods solvents that are imported or exported into and out of China. On 10 January 2021, the General Administration of Customs of the People’s Republic of China (GACC) issued Announcement No. 129 on Questions Regarding the Inspection on Imported and Exported Hazardous Chemicals and their Packaging[^2^][1]. This announcement specifies that class 3 dangerous goods solvents, such as n-pentane, cyclopentane, n-hexane and n-heptane, must use steel drums with a tare weight of at least 19 kg[^2^][1]. Tare weight is the weight of an empty container or vehicle.

The reason for this requirement is to ensure the safety and quality of the packaging of class 3 dangerous goods solvents. Steel drums are more durable and resistant than other types of packaging, such as plastic drums or jerricans, and can better protect the solvents from external factors, such as temperature, humidity, and sunlight. Moreover, steel drums with a tare weight of at least 19 kg have a higher wall thickness and a lower risk of deformation or damage during transport[^2^][1]. This can prevent the leakage or spillage of the solvents, which could cause environmental pollution, health hazards, or fire accidents.

The implication of this requirement is that shippers and importers of class 3 dangerous goods solvents in China need to comply with the new customs regulations and use the appropriate packaging for their solvents. Otherwise, they may face delays, fines, or rejection of their shipments by the customs authority. Shippers and importers also need to provide data on the hazardous chemicals and their packaging, such as declarations of conformity, inspection and identification reports, and UN specification markings, to the customs authority for verification[^2^][1].

In conclusion, China customs has issued new regulations that require class 3 dangerous goods solvents, such as n-pentane, cyclopentane, n-hexane and n-heptane, to use steel drums with a tare weight of at least 19 kg, in order to ensure the safety and quality of the packaging. This requirement is based on the rationale of preventing fire and explosion hazards, and protecting the environment and human health. Shippers and importers of class 3 dangerous goods solvents in China need to follow the new regulations and use the suitable packaging for their solvents, as well as provide the necessary data and documents to the customs authority.

n-Hexane: A Special Solvent for Food, Medicine, and Printing

Abstract: N-hexane is a molecule with six carbon atoms and fourteen hydrogen atoms. It is a clear, flammable, and evaporating liquid that belongs to a group of chemicals called alkanes. N-hexane is widely used as a special solvent, which means it can dissolve or separate some substances that are hard to dissolve or separate by other solvents. This article reviews the main applications of n-hexane as a special solvent in the food, pharmaceutical, and printing industries, and discusses the advantages and disadvantages of using n-hexane as an extractant and a cleaning agent. The article also highlights the potential health and environmental risks of n-hexane exposure and suggests some alternative solvents that are safer and greener.

I can help you write a popular science article in English about n-hexane as a special solvent. Here is a possible draft:

N-hexane is a molecule with six carbon atoms and fourteen hydrogen atoms. It is a clear, flammable, and evaporating liquid that belongs to a group of chemicals called alkanes. N-hexane is widely used as a special solvent, which means it can dissolve or separate some substances that are hard to dissolve or separate by other solvents.

One of the main applications of n-hexane as a special solvent is in the food industry. N-hexane can extract vegetable oils from crops such as soybeans, corn, and sunflower. These oils can be used for cooking, frying, or making margarine and biodiesel. N-hexane can also remove unwanted components from food, such as pigments, waxes, and pesticides, which can affect the color, texture, and safety of food.

Another application of n-hexane as a special solvent is in the pharmaceutical industry. N-hexane can extract active ingredients, vitamins, and antioxidants from herbs, flowers, and seeds. These extracts can be used to make drugs and medicines that can treat various diseases and improve health. N-hexane can also purify drugs and medicines by removing impurities and contaminants that can reduce their effectiveness and quality.

A third application of n-hexane as a special solvent is in the printing industry. N-hexane can clean the printing machines and the printing plates by dissolving the ink, grease, and dirt. This can improve the quality and speed of printing and prevent the machines from clogging and breaking down. N-hexane can also be used as a component of some inks that can print on different materials, such as paper, plastic, and metal.

N-hexane has several advantages as a special solvent, such as low cost, high availability, low toxicity, high selectivity, and easy recovery. However, n-hexane also has some challenges and risks, such as flammability, volatility, and environmental impact. Therefore, n-hexane should be used with caution and care, and some alternatives or improvements should be explored for future development.

N-hexane is a versatile and valuable special solvent that has many applications in different fields. By understanding its properties and functions, we can appreciate its role in our daily life and society.

How is Cyclopentane Produced?

Cyclopentane is a cyclic hydrocarbon. It is a component of gasoline and is used in the manufacture of synthetic resins and rubber adhesives, and also as a blowing agent in the manufacture of polyurethane insulating foam. Cyclopentane is a cycloalkane that consists of five carbons each bonded with two hydrogens above and below the plane. The parent of the class of cyclopentanes. It has a role as a non-polar solvent. It is a member of cyclopentanes, a cycloalkane and a volatile organic compound.
Junyuan Petroleum Group is the leading maker of Cyclopentane industry standards in China
Our Cyclopentane production capacity is in the forefront of the industry, accounting for 43% of the industry’s sales.

Cyclopentane Production Process
The present invention relates to an improved process for the production of cyclopentane from light petroleum fraction.

In the existing production technology, Cyclopentane can be obtained by many methods, but the method of hydrogenation of cyclopentadiene has the most industrial application prospect. The product has been hydrogenated three times, with advanced production technology, stable product indicators, green environmental protection, and special logistics vehicle delivery.
Purchase and Find information on CAS 287-92-3, Cyclopentane which meets or exceeds the grade requirements or specifications for each fine chemical.
Synonyms:
Ciclopentano
Cyclopentadienes
Cyclopentan
Cyclopentanes
Cyclopentene
Pentamethylene
Zyklopentan
Cyclopentane is in the class of cycloalkanes, being alkanes that have one or more rings of carbon atoms. It is formed by cracking cyclohexane in the presence of alumina at a high temperature and pressure.

Price trend chart of n-Pentane in recent six month (20-September-2022)

Looking back on China’s n-Pentane market in the past half year (20-March-2022 to 20-Sept-2022), the price of n-Pentane began to fall sharply from 9,900 yuan/ton at the end of March 2022, and continued to fall to 8,900 yuan/ton at the end of April 2022. The price remained relatively stable in the first ten days of May. The price of n-Pentane continued to fall from the end of May to 8,300 yuan/ton at the beginning of June 2022, and continued to rise for about a week, and then continued to rise until the first ten days of July, The price of n-Pentane has been maintained at about 8,400 yuan/ton, and the price fell at about 8,200 yuan since the middle of July, but it has been maintained at about 8,300 yuan/ton until the beginning of September. According to the change of price trend, the price of n-Pentane should not continue to decline in the short term. It is recommended that buyers arrange orders as early as possible according to manufacturing needs.
Price trend chart of n-Pentane in recent six month (20-September-2022)

Price trend chart of n-Pentane in recent six month (20-September-2022)

Pentane Market Overview

Pentane is a hydrocarbon organic compound that has a gasoline-like odor and is usually burnt as a fuel. Pentane finds numerous industrial applications; for instance, it is used as an ingredient in the production of petroleum. Its primary application is in creating blowing agents, which are in turn used in manufacturing polyesters (foams). Pentane has three isomeric forms, i.e. Isopentane, n-Pentane and Neopentane, which are generally used in blowing agents, electronic cleansing or as chemical solvents.

The growth of the global pentane market can be attributed to the rapid adoption of automobiles across the globe, which in turn is estimated to step-up the adoption of gasoline. Pentane acts as a blending agent in gasoline, which is augmenting the growth of the gasoline market. Further, for polystyrene and polyurethane, pentane behaves as a blowing agent. Increasing disposable income and the inclination towards higher living standards have changed the lifestyle and buying power of the public, resulting in a jump in the sales of electronic appliances, which require polystyrene and polyurethane foam insulation for cooling purpose.

This in turn is increasing the consumption of pentane in the global market. In addition, pentane and its byproducts are used as refrigerants in electronic appliances (fridge and air conditioners), which is another factor contributing towards the growth of the global pentane market.  Therefore, the growth of the electronics industry has a significant impact on the consumption of pentane and is expected to create sizable growth opportunities in the global pentane market over the forecast period.

Among all regions, North America is anticipated to hold a significant share in the pentane market, owing to the widespread presence of the electronics industry and huge demand for blowing agents in polyester applications.  In Asia Pacific, counties such as Japan, South Korea, China, India, and Japan, the demand for pentane is expected to be surplus as a result of the significant presence of electronic manufacturing facilities. Further, the demand for pentane in Europe is likely to subside due to the stringent regulatory scenario; hence, the consumption of pentane could be replaced by propylene glycol methyl ether or propylene glycol methyl ether acetate.

Pentane Market: Market Participants

The global pentane market is anticipated to be highly fragmented, owing to the presence of numerous local manufacturers. Examples of some of the market participants in the global pentane market identified across the value chain include:

  • LG Chem
  • Junyuan Petroleum Group
  • Exxon Mobil Corporation
  • Phillips 66 Company

Regional market of n-Pentane includes

  • North America (U.S., Canada)
  • Latin America (Mexico, Brazil)
  • Western Europe (Germany, Italy, France, U.K., Spain)
  • Eastern Europe (Poland, Russia)
  • Asia Pacific (China, India, ASEAN, Australia & New Zealand)
  • Japan
  • Middle East and Africa (GCC Countries, S. Africa, Northern Africa)

Pentane Market: Market Segmentation

On the basis of product type, the global pentane market has been segmented into:

  • n-Pentane
  • Isopentane
  • Cyclopentane

On the basis of application, the global pentane market has been segmented into:

  • Blowing agent
  • Electronic cleansing
  • Chemical solvent
  • Foaming agent
  • Sandwich panel industry
  • Polystyrene industry
  • Refrigrators industry

The opportunity of China’s chemicals and solvents to enter the Russian market must be sized

The Russian transportation line is blocked. Is the China Europe train still safe?

After Russia launched military operations in Ukraine, western countries led by the United States began to encircle Russia in various fields, and major container liner companies also began to suspend container liner services to Russia. At present, Mediterranean, Maersk, ocean Union, Yangming, Hyundai and other liner companies have successively issued notices to suspend liner services to Russia.

Introduction to Russia’s foreign shipping routes

Russia has a long coastline, and the ports that can be connected to container liners are mainly distributed in three regions, one is St. Petersburg in the Baltic Sea, the second is novorossisk in the Black Sea, and the third is Vladivostok and Dongfang port on the Pacific coast of the Far East, which are navigable to the world through the world shipping network of liner companies.

Since the Black Sea is located in the war zone, many merchant ships have been hit by missiles or sunk by mines, and Russian troops may enter the Odessa port of Ukraine at any time. Therefore, it is reasonable for the liner company to suspend the service of novorossisk in the Black Sea for the sake of safety. For example, COSCO Shipping Company of China announced that it would stop docking with Ukrainian ports for safety reasons, and took certain measures for the goods that had been shipped to Ukraine, so as to facilitate the cargo owners to properly handle and avoid losses.

Container liner shipping industry is a subsidiary industry of international trade, and international trade is dominated by Europe and the United States. Therefore, among the world’s top ten liner companies, except COSCO Shipping Company of China, all belong to the European and American system.

As the European and American sanctions against Russia are so outrageous that even cats are not spared, the customs in Hamburg, Germany and Rotterdam, the Netherlands refuse to transit goods to St. Petersburg, and it is no surprise that various liner companies cancel their attachment to Russia. Because the transit center is built for a long time, it cannot be changed in a short time.

Then, has Russia’s foreign cargo transportation been interrupted due to the sanctions of liner companies? Answer is No.

Generally speaking, Russia’s dependence on foreign trade is not very high, mainly exporting oil and gas, grain and timber to foreign countries, and importing some equipment and consumer goods. Among them, the exported oil and gas are transported by pipeline, and the exported grain is transported by bulk carrier. The suspension of liner companies mainly affects exported timber and imported consumer goods.

In addition, the road and railway transportation between Russia and its neighboring countries has not been affected. It should be pointed out that some large logistics companies in European and American countries have voluntarily stopped accepting the business of China Europe Express, but the China Europe express itself has not stopped operating. The railway from Europe to Russia via Poland and Belarus is still unblocked, but the possibility of interrupting this railway line in Europe cannot be ruled out.

The first leg of the voyage is the Asia Europe route from China’s coastal ports to European basic ports


The second leg of the voyage – the branch line from the European basic port to St. Petersburg, Russia

Although COSCO ships provide part of the transportation capacity on this route, the whole route is jointly operated by COSCO and other liner companies. Each shipping company sends ships to carry out transportation tasks in turn according to the established schedule. Therefore, if other shared shipping companies refuse to ship goods to Russia, COSCO will have no choice, and even endanger the cooperative relationship between COSCO and other shipping companies in the alliance.

According to the shipping schedule from COSCO to the basic ports in Europe, we can see from the ship name that there are EVA and France Dafei ships

COSCO can’t be expected to ship alone to carry out transportation tasks. In the case of the world shipping crisis, all shipping companies, including COSCO, have no idle capacity. The construction of container ships is based on years, and it is too late to build now. Even if COSCO sea pulls out ships to carry out the whole transportation task to St. Petersburg under all pressure, the sea freight will definitely be sky high and lose its economic significance.

However, this line is only nominally interrupted, in fact, it will not be completely interrupted. Since Estonia, Latvia and Lithuania in the Baltic Sea were former Soviet republics, they have close relations with Russia. These three countries have ports and feeder ships to connect with the basic ports in Europe, and some goods will be transported to Russia through the three Baltic countries. Some of this mode belongs to the gray space zone, which is somewhat similar to the goods entering the mainland through Hong Kong after the founding of the people’s Republic of China and before the reform and opening up. It can be predicted that some goods originally directly transported to St. Petersburg will be transferred to this kind of transportation.

People engaged in such transportation in the Baltic countries often wander on the edge of nominal laws, and sanctions will even increase their interests. I don’t think the anti Russian sentiment of the three countries can stand the test of money, and I don’t have much confidence in the integrity of the law enforcement personnel in the three countries. As long as it is not too excessive, this kind of transportation will not be stopped due to sanctions, so the route through the European basic port will not be completely interrupted.

The second line is the railway that China leaves the country through Manzhouli, Erenhot, Alataw pass and other ports, and may reach Moscow directly or through Mongolia and Kazakhstan. These railway lines are part of the extension line of the Eurasian Continental Bridge in Russia and the China Europe train. The whole journey takes about 15-40 days. Many railway stations in China, such as Shenzhen, Shenyang and Suzhou, can start transportation.

This line is the safest because it is all overland. As long as the governments of Kazakhstan and Mongolia are sane, nothing will go wrong. Even if the governments of these two countries have problems in their minds, Russia is believed to be able to cure them.

The third route is from the coastal ports of China to Vladivostok and Dongfang port on the Pacific coast of the Far East of Russia through the Strait of Kumar between Japan and South Korea, and then to Moscow through the Siberian Railway of Russia. This route is mainly operated by Russian Far East Ocean Shipping Co., Ltd.
It takes less than a week from China’s coastal ports to Vladivostok and Dongfang port, and about 20 days to Moscow. Judging from the current ship navigation trajectory, the operation has not stopped. In terms of routes, Russian ships may theoretically face the threat of the Japanese and Korean navies and the seventh fleet of the United States. However, as Russian bombers travel around Japan all year round, the author believes that there is little possibility of problems.

There is also air transportation between China and Russia, and road transportation at ports such as Heihe River and Suifenhe River on the Sino Russian border. The traffic volume and radiation range are not very large. Someone once considered the Arctic route through the Bering Strait. Because the voyage is too long, it needs to break the ice, and there is no supply capacity along the way. The author believes that it is not of practical significance at present.

China’s chemical products should seize this opportunity

Originally, factories all over the world could use containers to transport products to Russia through the liner company’s world shipping network. Now the liner company cancels its attachment to Russian ports, which means that the maritime traffic from all over the world to Russia has been interrupted. If the transportation from China to Russia is still smooth, European and American chemical brands that have not quit Russia may increase the orders of Chinese factories to make up for the lost supply of factories in other parts of the world.

Previously, the products manufactured by China may take the first route, from China to the European basic port by sea, and then to St. Petersburg by feeder ship. Now there is no need to turn from Europe to pretend to be European origin. It may become to take the second and third routes, which can be directly sent by railway or transported by sea to Vladivostok / Dongfang port, and then transferred by railway to Moscow.


Tens of thousands of containers and transport vehicles are waiting to be sent to Europe at the origin of the China Europe train

At the same time, China has the opportunity to become a transit station for products from all over the world to Russia. The sea transportation from all over the world to Russia is broken, while the sea transportation from all over the world to China is still smooth, so some foreign chemical brands that do not give up the Russian market may first transport their products to China, and then use the transportation channel from China to Russia to repack and transport them to Russia.

China has bonded warehouses in almost all coastal ports, and products transferred in bonded warehouses do not need to pay tariffs, which can save costs for these foreign products. However, as long as products enter China, China can earn income from various links such as warehousing, loading and unloading.

In terms of capital flows, China is also a suitable transit place. Russia is restricted in the international capital clearing system (Swift), but there is no restriction on the settlement between Russia and China, and there is no change in the settlement between China and other countries in the world. At the same time, the RMB exchange rate is basically stable, so China may also receive some financial settlement dividends and expand the scope of use of the RMB.

It should be pointed out that there are also many difficulties for China to expand its economic influence in Russia. For example, many Russian manufacturers favor European and American chemical products and are biased against Chinese products; Russia’s legal system and business environment are poor, and grey customs clearance and other problems need us to overcome. The state may have to play a more important role in protecting China’s economy.

In terms of engineering capacity, China’s chemical production capacity is basically no different from that of foreign chemical giants. Especially for bulk chemicals, due to the assistance of the Soviet Union and the subsequent purchase of process packages and design packages from abroad, independent design and construction can be basically achieved in combination with the digestion and absorption of the design unit for many years. Compared with foreign countries, fine chemicals are indistinguishable, because most of them are new products, and everyone has no experience. In fact, the process of fine chemicals is more important, which is why China has more advantages. For some chemical equipment, foreign countries have the first mover advantage, but there is no problem with reverse engineering based on domestic design ability. Even if you know the general idea, it is possible to copy it.

David Zhang, Sales Manager of Junyuan Petroleum Group, gave us an example to illustrate the production characteristics of China’s chemical industry. In fact, it is still a little universal. A chemical solvent production plant wants to produce a chemical, which has been available abroad. According to the foreign process, there is a step in the synthesis route that requires hydrogenation and reduction. This hydrogenation and reduction process uses a special reactor and reaction system. At this time, when the manufacturer wants to produce this kind of chemical products, it naturally wants to learn from this foreign process. Its core is the reactor design. Because the domestic engineering capacity is fairly good, after some twists and turns, they finally mastered the design method of this reactor, drew the design drawings of the reactor, and then the manufacturer did an experiment with air and water, It was found that the mixing effect could fully meet the requirements, so it was excitedly handed over to the equipment factory to make equipment. The equipment factory looked at the technical requirements and said that it could not do this because there was a gap between their surrounding chemical industries. The temperature and pressure of this hydrogenation process was very high, and a circulating pump and instrument in the process had to operate under extreme conditions. This technology could not be achieved in China at present, so this process had to be abandoned. Finally, we can only think of ways from the process, not hydrogenation, but other reduction methods. Because China’s chemical process ability is very strong and the experimenters work very hard, finally, after repeated experiments to explore the conditions, we decided to use iron powder for reduction, and finally completed the production of this product. Although it has some disadvantages compared with hydrogenation, with the help of cheap labor and low cost of other raw materials, this product still has strong competitiveness in the global market, and finally completely occupies the global chemical raw material market.

European and American sanctions have given Chinese chemicals and solvents the opportunity to enter the Russian market, which must be seized.

Request a Quote

Request a Quote

for Pentanes, Hexanes, Heptanes, Butanes and more

I will be back soon

Request a Quote
If you would like to receive a quote to purchase a product or you would like more information, please message us on WhatsApp.