Title: High-production low-consumption process flow for producing resin 731D
Application Number: 96122925 Application Date: 1996.10.04
Publication Number: 1156745 Publication Date: 1997.08.13
Approval Pub. Date: Granted Pub. Date: 2001.08.01
International Classifi-cation: C09F1/04
Applicant(s) Name: Zhang Yunming Address: 530004
Inventor(s) Name:
Attorney & Agent:
Abstract:
     A process features that after rosin is dissolved in solvent which may be straight-chain or cyclic paraffin (C9-12 paraffin), catalytic disproportionation takes place at lower temp. After reaction is completed, filtered catalyst (Pd) can be derectly reused. After filtrate is distilled to remove solvent, disproportionated rosin with light lustre and less saponified substance is obtained. Said solvent does not take part in reaction, so it is possible to reuse it. The process has high output rate up to 97-98.5%.
Time: 3