Issue 45, 2013 - Technical transformation of domestic chlorosulfonated polyethylene plant completed

Recently, the largest chlorosulfonated polyethylene plant in Jilin Petrochemical Calcium Carbide Plant has been successfully transformed to produce qualified products
.
After testing by relevant departments, the solvent residue, volatile content, tensile strength and other indicators in the product have reached the international standards of similar products, realizing the double improvement
of output and efficiency.

The renovation began on July 27 and mainly implemented perfect transformation
for solvents, device aftertreatment systems, extrusion systems, exhaust gas recovery and other links.
Exhaust gas recovery transformation not only improves the operating environment, but also reduces raw material consumption; The single screw extrusion used in the past was changed to the twin screw extrusion technology, which effectively reduced the solvent residue in the product; The use of new solvents for industrial production completely gets rid of the dependence
on carbon tetrachloride solvents.

After testing by professional departments, after this technical transformation, the carbon tetrachloride solvent residue of the product produced by the plant has been reduced from 0.
5% to less than 0.
1%, and the appearance and internal performance indicators of the product have been significantly improved
.

Jilin Petrochemical Calcium Carbide Plant chlorosulfonated polyethylene plant was founded in 1968, is currently the only domestic enterprise
approved by the Ministry of Environmental Protection to use carbon tetrachloride solvent to produce chlorosulfonated polyethylene.
At present, the production capacity of the plant is 3000 tons/year
.
The implementation of the quota licensing system under the Montreal Convention severely constrains the production capacity of the carbon tetrachloride solvent used in the production of the plant
.
In recent years, under the supervision and guidance of the Ministry of Environmental Protection, the plant has actively carried out mixed solvent research with Jilin Petrochemical Research Institute, and got rid of the dependence
on carbon tetrachloride solvent.
(Lu Li)