Guangzhou Yang Qing Chemical Co., Ltd. Distribution of propylene glycol, glycerin, triethanolamine, AES, AOS variety, reasonable prices. Guangzhou Yang Qing Chemical Co., strength, credit, keep the contract, to ensure product quality, variety principles of operating characteristics and puerile, and win the trust of our customers. Main: Dow propylene glycol prices, SKC propylene glycol or unsaturated polyester, epoxy resin, an important raw material for polyurethane resin, the amount in this area accounted for about 45% of the total consumption of propylene glycol industrial grade, which kind of unsaturated polyester is used extensively for surface coatings and reinforced plastics. Guangzhou Yang Qing Chemical Co., Ltd. Distribution of propylene glycol, glycerin, triethanolamine, AES, AOS variety, reasonable prices. Guangzhou Yang Qing Chemical Co., strength, credit, keep the contract, to ensure product quality, variety principles of operating characteristics and puerile, and win the trust of our customers. Main: Dow propylene glycol, SKC propylene acrolein hydration hydrogenated 1,3-PDO process patent is the largest German company Degussa-propanediol, followed by German company Hoechst. Degussa company acrolein as a raw material 1,3-PDO major industrialized line production steps are: (1) acrolein hydration of 3-hydroxy propionaldehyde; (2) 3-hydroxypropionaldehyde catalytic hydrogenation of 1, 3-PDO. Experts believe that the production technology is relatively mature, low-cost pharmaceutical grade propylene, the raw material is relatively broad cheaper. But there are low selectivity of the catalyst, product separation process is complex, poor quality, pollution worse, and acrolein explosive, difficult storage, production more dangerous defects, so the higher production costs. The difficulty of this process is that the selection of the catalyst, the process is currently still in the pilot stage, the technology needs to be improved Zhaoqing pharmaceutical grade propylene glycol _ _ Y-Chemical (certified merchants) are provided by Jan-Chemical Co., Ltd. in Guangzhou. Road Zhiyuan, temper forward. Guangzhou Yang Qing Chemical Co., Ltd. (www.gzyangqing.com) (www.gzyangqing.com) aims to become and you win symbiosis, strategic partners to move forward, more determined to become the most influential agents of chemical products business, and You leap together, succeed together!