Addition ratio of 14 butanediol in plastics

1, 4- butanediol (1, 4- butanediol, abbreviated as BDO) is an important organic and fine chemical raw material, which can produce THF, PTMEG, GBL and other derivatives. BDO and its derivatives can be widely used in PBT plastics, spandex, polyurethane, medicine, cosmetics and other fields. The proportion in plastic is 1: 1.4.

The concentration of BDO industry in China is relatively high. 20 1 1 year, the total production capacity of the top three BDO manufacturers in Chinese mainland accounts for more than 50% of the total production capacity. Shanxi Sanwei is the largest BDO manufacturer in China at present, with 75,000 tons/year Reppe method and 75,000 tons/year maleic anhydride method respectively, and it is the only BDO manufacturer with independent intellectual property rights of Reppe method in China.