Liaoning Hongyi Chemical Co. , Ltd.,_Engine Oil Additive_Marine oil Additive

The rail transportation time limit of this product is to be shipped in tank cars provided by the steel company, and it needs to be reported to the relevant authorities for approval before shipment. Transport vehicles should be equipped with corresponding types and quantities of fire-fighting equipment and leakage emergency treatment equipment during transportation. It is best to transport sooner or later in summer. The tank (tank) truck used during transportation should have a grounding chain, and a hole partition can be set in the tank to reduce vibration and static electricity. Mixed shipment and transportation with oxidants, acids, alkali metals, edible chemicals, etc. are strictly prohibited. Avoid exposure to the sun, rain, and high temperature during transportation. Stay away from fire, heat sources, and high-temperature areas during stopovers. The exhaust pipe of the vehicle carrying the item must be equipped with a fire arrester, and it is forbidden to use mechanical equipment and tools that are prone to sparks for loading and unloading. When transporting by road, follow the prescribed route and do not stop in residential areas and densely populated areas. It is forbidden to drop off during railway transportation. It is strictly forbidden to transport in bulk by wooden ships or cement ships.

2021

11-22

Precautions for methanol storage

Store in a cool, well-ventilated special warehouse, away from fire and heat sources. The storage temperature should not exceed 37℃, keep the container tightly closed. It should be stored separately from oxidants, acids, alkali metals, etc., and avoid mixed storage. Use explosion-proof lighting and ventilation facilities. It is forbidden to use mechanical equipment and tools that are prone to sparks. The storage area should be equipped with leakage emergency treatment equipment and suitable storage materials.

2021

11-22

Methanol application field

1. One of the basic organic raw materials, used to manufacture various organic products such as methyl chloride, methylamine and dimethyl sulfate. It is also a raw material for pesticides (insecticides, acaricides), medicines (sulfonamides, synmycin, etc.), and one of the raw materials for the synthesis of dimethyl terephthalate, methyl methacrylate and methyl acrylate. 2. The main application area of methanol is the production of formaldehyde. Formaldehyde can be used to produce adhesives, mainly in the wood processing industry, and secondly as a treatment agent for molding compounds, coatings, textiles and paper. 3. Another main purpose of methanol is to produce acetic acid. Acetic acid consumption accounts for about 7% of global methanol demand. It can produce vinyl acetate, cellulose acetate and acetate. Its demand is closely related to the needs of coatings, adhesives and textiles. 4. Methanol can be used to make methyl formate. Methyl formate can be used to produce formic acid, formamide and other fine chemical products. It can also be used as pesticides, fungicides, fumigants, tobacco treatment agents and gasoline additives. 5. Methanol can also produce methylamine. Methylamine is an important aliphatic amine. It uses liquid nitrogen and methanol as raw materials and can be separated into monomethylamine, dimethylamine and trimethylamine through processing. It is one of the basic chemical raw materials. . 6. It can be synthesized into dimethyl carbonate, which is an environmentally friendly product used in medicine, agriculture and special industries. 7. It can be synthesized into ethylene glycol, which is one of the petrochemical intermediate raw materials, and can be used to produce polyester and antifreeze. 8. It can be used to make growth promoters. It can increase the yield of crops by a large amount, keep the branches and leaves fresh and vigorous, and will not wilt in summer, and can greatly reduce the irrigation water, which is conducive to the growth of dryland crops. 9. It can synthesize methanol protein. The methanol protein produced by microbial fermentation with methanol as the raw material is called the second-generation single-cell protein. Compared with natural protein, it has higher nutritional value and the crude protein content is much higher than that of fish meal and soybean. And it is rich in amino acids, minerals and vitamins, which can replace fish meal, soybeans, bone meal, meat and skimmed milk powder. 10. Methanol is used as a cleaning and degreasing agent, MOS grade is mainly used for discrete devices, medium and large-scale integrated circuits, and BV-Ⅲ grade is mainly used for ultra-large-scale integrated circuit technology. 11. Used as analytical reagents, such as solvents, methylation reagents, chromatographic analysis reagents. Also used in organic synthesis. 12. Generally, methanol is a better solvent than ethanol and can dissolve many inorganic salts. It can also be mixed with gasoline as an alternative fuel. Since the 1980s, methanol has been used to produce gasoline octane additive methyl tert-butyl ether, methanol gasoline, methanol fuel, and methanol protein products, which promoted the development of methanol production and market demand. 13. Methanol is not only an important chemical raw material, but also an excellent energy source and vehicle fuel. Methanol reacts with isobutylene to obtain MTBE (methyl tert-butyl ether), which is a high-octane unleaded gasoline additive and can also be used as a solvent. In addition, it can also produce olefins and propylene to solve the problem of resource shortage. 14. Methanol can be used to produce dimethyl ether. Dimethyl ether has a wide range of uses in daily chemicals, pharmaceuticals, pesticides, dyes, coatings, etc., it also has convenient cleaning, high cetane number, good power performance, and less pollution. . It is easy to pressurize as a liquid, easy to store and other fuel properties. A new type of liquid fuel prepared by methanol and dimethyl ether in a certain proportion is called alcohol ether fuel. Its combustion efficiency and thermal efficiency are higher than that of liquefied gas.

2021

11-22

Methanol preparation method

Synthetic method 1. The production of methanol is mainly a synthesis method, and the chemical reaction formula for synthesis is: 2H2+CO→CH3OH 2. Pre-rectify the synthesized crude methanol to remove methyl ether. (The high-pressure method was the first to realize the industrial synthesis method, but because of its high energy consumption, complex processing, harsh material requirements, and many by-products in the product, it was replaced by the ICI low- and medium-pressure method and the Lurgi low- and medium-pressure method. Industrial synthesis Almost all methanol uses carbon monoxide pressurized catalytic hydrogenation method. The process includes gas production, synthesis purification, methanol synthesis and crude methanol rectification.) 3. Purify the crude methanol. The purification process includes rectification and chemical treatment. Chemical treatment mainly uses alkali to destroy impurities that are difficult to separate in the rectification process and adjust the pH value; rectification mainly removes volatile components such as dimethyl ether, and hard-to-volatile ethanol, higher alcohol and water. The purity after crude distillation can generally reach more than 98%. 4. Use rectification method to reduce the water content of industrial methanol to below 0.01%. Treatment with sodium hypoiodate can remove the acetone. After rectification, pure methanol is obtained. 5. The preparation of BV-Ⅲ grade methanol mainly adopts rectification process. Using industrial methanol as raw material, through rectification, ultra-clean filtration, and ultra-clean sub-packaging, high-purity methanol products are obtained. Generally, industrial methanol is used as the raw material, and the water is removed by normal pressure distillation, the top of the tower is controlled at 64-65°C, and the insoluble matter is removed by filtration. Dry distillation Methanol was first produced by dry distillation of wood, so methanol is also called wood alcohol. Among them, there is very little methanol in the natural free state, so this method wastes wood, and the product contains impurities such as acetone, and it is difficult to remove. Because this method could not meet the needs, after 1924, people began to gradually stop using this method.

2021

11-22

Catalytic oxidation of propylene

Propylene is catalyzed and oxidized to produce acrolein. The Sohio process uses bismuth molybdate or phosphomolybdate as a catalyst is a new economic breakthrough in the production of acrolein. Many companies have also developed a highly selective multi-component catalyst system with a selectivity of 75 to 84% based on propylene. Using palladium chloride as a catalyst to oxidize propylene to obtain acetone, the yield is 92%, and the reaction equation is as follows: CH3CH=CH2+PbCl2+H2O→CH3COCH3+Pb+2HCI React with halogen Propylene and halogen can undergo two addition reactions under different conditions. Propylene reacts with halogen at room temperature or under the action of gas phase illumination or with a catalyst. X2+CH3CH=CH2→CH3CHXCH2X (1,2-dihalopropane) Reaction in water: CH3CH=CH2+CI2+H2O→CH3CH(OH)CHCI+HCI or CH3CHClCH2OH+HCl

2021

11-22

Propylene storage and transportation

Operation precautions Airtight operation, full ventilation. Operators must undergo special training and strictly abide by the operating procedures. Keep away from fire and heat sources, and smoking is strictly prohibited in the workplace. Use explosion-proof ventilation systems and equipment. Prevent gas from leaking into the workplace air. Avoid contact with oxidants and acids. During the transfer process, the cylinder and container must be grounded and bridged to prevent static electricity. Lightly load and unload during transportation to prevent damage to cylinders and accessories. Equipped with corresponding types and quantities of fire-fighting equipment and leakage emergency treatment equipment. Storage precautions Store in a cool, ventilated warehouse. Keep away from fire and heat sources. The storage temperature should not exceed 30°C. It should be stored separately from oxidants and acids, and avoid mixed storage. Use explosion-proof lighting and ventilation facilities. It is forbidden to use mechanical equipment and tools that are prone to sparks. The storage area should be equipped with leakage emergency treatment equipment. Transport considerations The safety helmet on the cylinder must be worn when transporting the cylinder. Steel cylinders are generally placed flat, and the mouth of the cylinder should be in the same direction, and should not cross; the height should not exceed the protective fence of the vehicle, and the triangular wooden pad should be used to fasten it to prevent rolling. The transportation vehicles should be equipped with corresponding types and quantities of fire-fighting equipment during transportation. The exhaust pipe of the vehicle carrying the item must be equipped with a fire arrester, and it is forbidden to use mechanical equipment and tools that are prone to sparks for loading and unloading. Mixed shipment and transportation with oxidants, acids, etc. is strictly prohibited. In summer, it should be transported in the morning and evening to prevent sun exposure. Stay away from fire and heat sources during stopovers. When transporting by road, follow the prescribed route and do not stop in residential areas and densely populated areas.

2021

11-22

Propylene production process

At present, the research on the chemical process of increasing the production of propylene is mainly concentrated in four aspects: one is to improve the FCC and other refining processes, tap the potential of existing equipment, and upgrade the technology of FCC equipment to increase the production of propylene; the second is to make full use of the C4-C8 by-products of oil refining and ethylene cracking And other resources, low-carbon olefin cracking technology and olefin disproportionation technology that are converted into ethylene and propylene; the third is propane dehydrogenation process; the fourth is the methanol-to-olefin process that uses natural gas and coal as raw materials to produce ethylene and propylene. Increasing production FCC process technology Compared with traditional FCC, the operating conditions of this kind of process technology are more severe, requiring higher reaction temperature, higher catalyst-to-oil ratio, and shorter catalysis time. Using these technologies, although the gasoline yield will be affected to a certain extent, the olefin content in the gasoline is reduced and the quality is improved. The output of propylene is 2 to 4 times higher than that of the traditional FCC. my country’s oil refining industry has large catalytic cracking processing capacity and high slag mixing ratio, resulting in high olefin content in gasoline. The development and application of the FCC process technology to increase the production of propylene will improve the quality of oil while providing more low-carbon olefins for downstream. Market prospects.

2021

11-22

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