| Title: Process for removing
hydrocatalyst from unsaturated copolymer |
| Application Number: |
00103779 |
Application Date: |
2000.03.10 |
| Publication Number: |
1313344 |
Publication Date: |
2001.09.19 |
| Approval Pub. Date: |
|
Granted Pub. Date: |
2003.09.10 |
| International Classification: |
C08F6/08 |
| Applicant(s) Name: |
Nandi Chemical Industry Co Ltd |
| Address: |
|
| Inventor(s) Name: |
Xu Guixian, Zhao Weidong |
| Attorney & Agent: |
liu jinhui |
| Abstract |
| A process
for removing the residual noble metal catalyst from the copolymer,
especially the butadieneacrylonitrile rubber solution after
homogenized and catalytical hydrogenated features that the organic
compound containing -NH2 or/and C=S as complexing agent and
carboxylic acid as extractant to transfer said catalyst into
water-soluble organic matches and make it come in aqueous solution.
Its advantage is high removal rate of 98% or more for Rh or 77% or
more for Ru. | |