Process for preparing orthoformate from hydrocyanic acid as waste gas of acrylonitrile plant

Application Number: 00111314
Application Date: 2000.08.24
Publication Number: 1340495
Publication Date: 2002.03.20
Priority Information:
International: C07C41/60;C07C43/32
Applicant(s) Name: Wanchang Group Co Ltd, Zibo
Inventor(s) Name: Gao Qingchang
Patent Agency Code: 37212
Patent Agent: cai chaoqiang
Abstract A process for preparing orthoformate from the hydrocyanic acid as the waste gas of acrylonitrile plant includes such steps as reaction of hydrocyanic acid as initial raw material on corresponding alcohol and halogen acid in inertial solvent through forming salt, alcoholysis, crystallizing, separation and rectifying to obtain trimethyl orthoformate with methanol or triethyl orthoformate with ethanol. Its advantages include low cost, high output rate and quality, and use of waste as raw material.