发明名称 VERFAHREN ZUR WIEDERGEWINNUNG VON KATALYSATORWERTEN.
摘要 <p>Disclosed is an improved process for the recovery of rhodium catalyst values from "tars" formed during the preparation of acetic anhydride by the rhodium-catalyzed carbonylation of a mixture of methyl iodide and methyl acetate. The process entails an extraction process wherein rhodium-containing tar is extracted using a combination of aqueous hydrogen iodide, methyl iodide and elemental iodine to recover 95 weight percent or greater of the rhodium in the aqueous phase.</p>
申请公布号 DE68921224(D1) 申请公布日期 1995.03.23
申请号 DE1989621224 申请日期 1989.11.20
申请人 EASTMAN CHEMICAL CO., KINGSPORT, TENN., US 发明人 ODOM, STEVE, CONLEY, ROCHESTER, NEW YORK 14650, US;COOK, STEVEN LEROY, ROCHESTER, NEW YORK 14650, US;TENNANT, BRENT ALAN, ROCHESTER, NEW YORK 14650, US
分类号 B01J38/00;B01J31/40;C07C51/56;C07C51/573;C07C53/12;C22B7/00;(IPC1-7):C07C53/12 主分类号 B01J38/00
代理机构 代理人
主权项
地址