发明名称 |
RÜCKGEWINNUNG VON KOBALT AUS KOBALTKATALYSIERTEN HYDROFORMYLIERUNGSREAKTIONEN |
摘要 |
<p>In a hydroformylation reaction, the circulation and recovery of cobalt carbonyl in a cobalt catalyst cycle using carbonylate as an intermediate and acidification thereof, is improved by supplying an aqueous sulfuric acid solution containing less than 16% wt of sulfuric acid to the carbonylate to control sulfuric acid concentration in the carbonylate/acid mixture, before accounting for any acid consuming reaction, to a value of from 2% to 10% by weight. Single step and multistage liquid/liquid extraction techniques as well as vapor/liquid extraction techniques followed by the absorption of cobalt from the vapor in an organic liquid both benefit from this improvement.</p> |
申请公布号 |
DE602008003320(D1) |
申请公布日期 |
2010.12.16 |
申请号 |
DE20086003320T |
申请日期 |
2008.03.28 |
申请人 |
EXXONMOBIL CHEMICAL PATENTS INC. |
发明人 |
VAN DRIESSCHE, EDDY;VAN VLIET, ARIE;CAERS, RAPHAEL FRANS;BECKERS, HUBERTUS;GARTON, RONALD;DA CRUZ, BERTRAND;LEPAGNOL, MICHEL;KOOKE, EDWIN |
分类号 |
C22B23/00;C01G51/02;C07C45/50 |
主分类号 |
C22B23/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|