发明名称 |
Cobalt Recovery From Cobalt Catalysed Hydroformylation Reactions |
摘要 |
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 vapour/liquid extraction techniques followed by the absorption of cobalt from the vapour in an organic liquid both benefit from this improvement.
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申请公布号 |
US2010228046(A1) |
申请公布日期 |
2010.09.09 |
申请号 |
US20080532475 |
申请日期 |
2008.03.28 |
申请人 |
VAN DRIESSCHE EDDY T A;VAN VLIET ARIE;CAERS RAPHAEL FRANS;BECKERS HUBERTUS JOSEPH;GARTON RONALD DEAN;DA CRUZ BERTRAND RAYMOND;LEPAGNOL MICHEL J P;KOOKE EDWIN |
发明人 |
VAN DRIESSCHE EDDY T.A.;VAN VLIET ARIE;CAERS RAPHAEL FRANS;BECKERS HUBERTUS JOSEPH;GARTON RONALD DEAN;DA CRUZ BERTRAND RAYMOND;LEPAGNOL MICHEL J.P.;KOOKE EDWIN |
分类号 |
C07C67/08;C01G51/02;C07C29/16;C07C67/303;C22B23/00 |
主分类号 |
C07C67/08 |
代理机构 |
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