Title: Method for producing adipic acid and chemical fertilizer from adiponitrile tar
Application Number: 94110232 Application Date: 1994.05.04
Publication Number: 1097730 Publication Date: 1995.01.25
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C05C11/00,C07C55/14
Applicant(s) Name: Huang Yulong Address: 111003
Inventor(s) Name: Huang Yulong, Qiu Suwen
Attorney & Agent: JIANG GUIZHI
Abstract:
     A method of extracting adipic acid from waste adiponitrile tar in production of adiponitrile involves four steps of extraction, acidolysis, purification and neutralization. It is simple and cost-effective, no secondary pollution is produced.
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