We are gamma-Butyrolactone ( CAS 96-48-0) supplier, contact us to get price!
gamma-Butyrolactone (96-48-0) is an important intermediate of fine chemicals, which has the characteristics of high boiling point, strong solubility, high conductivity and good stability. gamma-Butyrolactone can dissolve all kinds of organic and inorganic compounds, it is commonly used as solvent, extractant and absorbent. Characteristics of the molecular structure of gamma-Butyrolactone(GBL) determine that it can do a series of chemical reactions with ring opening and non ring opening. It can be used as the production raw materials of ciprofloxacin, piracetam, vitamin B1, polyvinylpyrrolidone and other chemical drugs. Its stable solubility and electrolysis make it a special solvent for high conductivity and can be used as electrolyte for lithium batteries and electric appliances. gamma-Butyrolactone(96-48-0) and its derivatives can be widely used in petroleum, chemical, textile, perfume, pesticide, pharmaceutical and other industrial fields.
Demands of gamma-Butyrolactone product
In the United States, the consumption structure of gamma-Butyrolactone is roughly as follows: 56% for the production of N-methyl pyrrolidone, 25%-30% for the production of 2-pyrrolidone, N- vinyl pyrrolidone and polyvinylpyrrolidone, the others account for 14%-19%. In Western Europe, 45% for the production of polyvinylpyrrolidone, 43% for the production of N-methyl pyrrolidone, the others account for 12%. In Japan, gamma-Butyrolactone is mainly used as electrolyte solution and in the production of N-methyl pyrrolidone. Of course, consumer demand of gamma-Butyrolactone product is constantly changing.
Industrial synthesis process of gamma-Butyrolactone product
There are a variety of synthesis methods of gamma-Butyrolactone product, the raw materials of production are 1,4- butylene glycol, maleic anhydride, furfural, olefin, and etc. However, industrial synthesis of gamma-Butyrolactone product mainly have two methods, dehydrogenation of 1,4-butanediol with acetylene and formaldehyde as raw materials(that is Reppe method) and maleic anhydride hydrogenation method using maleic anhydride as raw material.
Repper method adopts more process routes, the production cost depends mainly on the source of raw material acetylene,its process is simple, mature and easy to obtain raw materials. The disadvantage is that acetylene under high pressure is flammable and explosive, the catalyst efficiency is low, and the equipment investment cost is high. Compared with the traditional repper method, the esterification of maleic anhydride hydrogenation process (Davy process) has low production cost, and also can achieve the coproduction of BDO, GBL and THF. According to the market demand, we can flexibly adjust the proportion of BDO, GBL and THF. What’s more, from the aspects of raw material sources and technical economy, Davy process is also the most competitive process for producing BDO, GBL and THF.
gamma-Butyrolactone supplier
Anyang General Chemical Co., Ltd. introduces advanced international technology and adopts advanced production technology, our chemical products quality has reached the international first-class level. As gamma-Butyrolactone supplier, we can supply superior product and considerable price. If you are interested in gamma-Butyrolactone product, contact us to get price. For more chemical products, you may contact us by sending email.