Application Number: 00119538
Application Date: 2000.08.01
Publication Number: 1336376
Publication Date: 2002.02.20
Priority Information:
International: C07F9/09
Applicant(s) Name: Shanghai Petrochemical Co., Ltd.
Address:
Inventor(s) Name: Shu Jiansheng;Wang Guoliang;Yang Chaodong
Patent Agency Code: 31102
Patent Agent: yuan mengchang
Abstract The present invention relates to preparation of C2-C18 bisalkyl phosphate, used here is RO-X and PCl3 as raw material, in which R is C2-C12 alkyl radical, X is H,K Na or Mg. Compound RO-X and inert orlganic solvent are compounded as material I, compound PCl3 and inert organic solvent are compounded as material II, material I and material II with ratio of PCl3:RO-X=1:(2-8) are proceeded reaction with reaction temp. 20-50 deg.C. After reaction is completed, remove HCl gas in the system, then proceed neutralization, acidification, extruction, filtration, recrystallization to obtain the invented bisalkyl phosphate with high purity.