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公开(公告)号:CH368147A
公开(公告)日:1963-03-31
申请号:CH6992259
申请日:1959-02-23
Applicant: HOECHST AG
Inventor: WIMMER RUDOLF D I , WIRTZ RUDOLF DR , PORTZ WILLI DR , FISCHER WERNER D I , SCHILKEN HARTMUT D I
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公开(公告)号:CH352324A
公开(公告)日:1961-02-28
申请号:CH352324D
申请日:1956-04-27
Applicant: HOECHST AG
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公开(公告)号:DE1668023A1
公开(公告)日:1971-11-18
申请号:DE1668023
申请日:1967-09-19
Applicant: HOECHST AG
Inventor: FREYER WALTER DR , GSCHEIDMEIER MANFRED DR , HOELTERMANN ROLF , WIRTZ RUDOLF DR
IPC: C07C51/377 , C07C51/487 , C07C
Abstract: 1,188,745. Purification of monochloroacetic acid. FARBWERKE HOECHST AG. 19 Sept., 1968 [19 Sept., 1967], No. 44609/68. Heading C2C. Monochloroacetic acid is purified by passing the crude acid in the liquid state at 110‹ to 145‹ C. and hydrogen over a stationary catalyst consisting of at least one noble metal of Group VIII of the Periodic Table supported on an acidresistant carrier. Specified catalysts are palladium-group metals and their alloys and specified carriers are alumina, carbon, silicic acid, silicon carbide and boron carbide.
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公开(公告)号:DE1794061A1
公开(公告)日:1971-09-23
申请号:DE1794061
申请日:1968-08-31
Applicant: HOECHST AG
Inventor: HAMBSCH ERICH DR , KLUG HELMUT DR , ORTNER HERBERT DR , SEM LLAGER WALTER DR , WIRTZ RUDOLF DR
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公开(公告)号:DE1770044A1
公开(公告)日:1971-09-23
申请号:DE1770044
申请日:1968-03-23
Applicant: HOECHST AG
IPC: C08G63/181 , C08G17/08
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公开(公告)号:CH353733A
公开(公告)日:1961-04-30
申请号:CH353733D
申请日:1956-05-12
Applicant: HOECHST AG
Inventor: KRAUSE WALTER DR , FISCHER WERNER DIPL-ING DR , WIRTZ RUDOLF DR , SCHILKEN HARTMUT DIPL-ING DR
IPC: C07C4/04
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