Bisphenol A Bisphenol A purchase quality sales BPA serves Shanghai Lin Yan and Trade

Bisphenol A molecule consists of two molecules of phenol and acetone condensation catalyst of the reaction is an acid catalyst, a catalyst for industrial application sulfuric acid, hydrogen chloride and ion exchange resins. These different types of catalysts used in the industry poses a bisphenol A different stages of technological development. Sulfuric acid production process using conventional bisphenol A condensation of sulfuric acid as a catalyst, phenol and acetone. But poor selectivity sulfuric acid to produce 40 kinds of impurities, and difficult to separate, inferior quality of bisphenol A, a large consumption of sulfuric acid, forming a large number of spent acid and acid, wastewater, serious environmental pollution, the world's industrial developed countries have already phased out the sulphate process. BPA BPA HCl France and USA first use of hydrogen chloride as a catalyst for the production of bisphenol A, compared with sulfuric acid, hydrogen chloride catalyst is volatile, you can use a vacuum distillation process for the removal from the reaction system, the better the production of bisphenol-A quality. But hydrogen chloride corrosion of equipment and piping material selection requirements, investment increases, hydrogen chloride law also gradually be eliminated. Ion exchange resin in the condensation reaction of phenol ketone larger than carried out, both the phenol reactant, is selective reaction solvent, increases the condensation reaction, the condensation reaction product impurities, high quality can be obtained by simple purification process bisphenol A products. Bisphenol A resin production technology has become the mainstream of development direction and production of bisphenol A, it has changed the shortcomings of traditional craft, easily separated from the reaction mass after the treatment is simple, less corrosive to equipment, operation of the system reliability greatly increase, while investment costs did not increase. The world has its own bisphenol A technology manufacturers are GE, BAYER, DOW Chemical, Chiyoda, BLACHOUNIA other companies. These manufacturers have many years of experience in the development and production of bisphenol A, in which GE, BAYER, DOW, Chiyoda technology represents today's world advanced level of bisphenol A synthesis technology. Shanghai Lin Yan Ltd. was established in 2009, is engaged in chemical raw materials import and export trade and sales of businesses. Companies adhering to the "customer first, forge ahead" business philosophy, the "customers first" principle to provide our clients with quality services. We mainly engaged in "Russian black N990; bisphenol A; polycarbonate; MMA" and other products. Company respected "pragmatic, hard work and entrepreneurial spirit of responsibility and integrity, win-win situation, and create a business philosophy, to create a good business environment, with a new management, improve technology and good service, excellent quality for basic survival, We always adhere to customer first intentions of services to customers, we persist in using their services to impress customers.