The 10,000-ton high-purity DMC project was successfully put into operation

Recently, Shaanxi Weihe Coal Chemical Group Co.
, Ltd.
Binzhou Company has received good news: the dimethyl carbonate (DMC) refining project has opened up the whole process and successfully produced high-grade dimethyl carbonate
.
DMC distillation products up to 99.
96%! At present, the annual consumption of crude DMC of the project is 25,214 tons, and the annual output of DMC excellent products is 15,516 tons, and it is expected to achieve an annual profit of 29.
38 million yuan
.

In the synthesis of dimethyl oxalate, crude dimethyl carbonate is produced as a by-product, due to the low purity, low price and low
profit margin of the product.
To this end, Binzhou Company started construction of a special recovery and refining device for dimethyl carbonate from November 2021, which was completed and put into use in mid-October 2022, mainly to use the crude DMC by pressure swing rectification heat coupling process, through low-temperature crystallization and rectification method to purify about 45% crude DMC to 99.
96%, not only to produce the products required by the market, but also to turn organic waste into treasure, achieve zero emission and maximize benefits, significantly improving economic and environmental benefits
。

Shaanxi Weihe Coal Chemical Group Co.
, Ltd.
(hereinafter referred to as "Weihua Group") is the backbone enterprise
of the coal chemical sector of Shaanxi Coal Chemical Industry Group Corporation.
The company is located in Weinan High-tech Industrial Development Zone, Shaanxi, with an annual production capacity of 300,000 tons of synthetic ammonia, 520,000 tons of urea, 600,000 tons of methanol, 300,000 tons of ethylene glycol and 110,000 tons
of dimethyl ether.