Comprehensive utilization technology of high densi

2022-10-16
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PetroChina Jilin Petrochemical high density polyethylene wax comprehensive utilization technology research and development success

on March 19, the data of PetroChina Jilin Petrochemical Research Institute showed that the softening point of high density polyethylene wax increased from 95 ° C to 100 ° C to 105 ° C to 115 ° C, marking the success of high density polyethylene wax comprehensive utilization technology research and development, and has applied for a national invention patent

polyethylene wax, a by-product of HDPE unit in Jilin Petrochemical Ethylene Plant, was sold directly after simple processing in the past, with low added value, narrow application range and poor market competitiveness. The polyethylene Aerospace No.2 Institute and aerospace No.5 institute can both use qualified hard wax, which is widely used in the chemical industry. It can be used to manufacture color masterbatch to supply the company's wood plastic extrusion business particles, plastic steel, PVC pipes, hot melt adhesive, rubber, shoe polish, leather brightener, cable insulation, floor wax, paint, ink and other products. The fine polyethylene wax powder with high quality can also be used in cosmetics and personal care products. If the by-product polyethylene wax is refined by classification, it can overcome the defects of raw materials, greatly improve the pertinence of its application and expand its application field, and the application performance and added value of the product will be greatly improved

for this reason, Jilin Petrochemical Research Institute organized scientific researchers to carry out technical research, Through brainstorming, it is determined that the test is as large as 10 tons (for example, in the popular steel scheme, the polyethylene wax produced by the polyethylene plant is separated and refined by the combination of distillation method and solvent method to form polyethylene wax products of different specifications, and polyethylene wax powder is produced by crystallization method. This will further expand the application field of polyethylene wax, and the added value of polyethylene wax products will also be greatly improved.

it is understood that the domestic polyethylene wax refining process generally adopts dry steaming The production process of polyethylene wax powder mainly adopts the methods of mechanical crushing, airflow crushing, spray drying, atomization granulation, crystallization, etc. Jilin Petrochemical fully compared the advantages and disadvantages of these technical routes, carried out collective innovation on this basis, and finally formed its own technical route

project manager Han Xiaoping said: "the polyethylene wax market is mainly divided into three varieties: by-product wax and by-product wax refining and processing products, polymerized wax products, polyethylene raw material cracking wax products, and by-product wax and by-product wax refining and processing products polyethylene wax are the main varieties of the market. According to market research, especially under the current weak chemical market, Jilin Petrochemical will further tap the potential, increase efficiency and reduce the operation cost of the unit. The ethylene plant produces 3500 tons of refined polyethylene wax every year, and the added value of the product is significantly increased. It is preliminarily estimated that the annual efficiency can reach 4million yuan. "

Han Xiaoping said: "Jilin Petrochemical has been carrying out special technical research in the field of chemical separation for many years, so the comprehensive utilization technology of high-density polyethylene wax is not very difficult in terms of technology itself. The important universal experimental machine is easy to complete overload protection and pressure maintenance. What matters is how to do more with less money. Technicians pay attention to the comprehensive application of several technologies, and try to use existing equipment to achieve industrial production, so as to achieve the desired effect. "

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