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公开(公告)号:DE1224749B
公开(公告)日:1966-09-15
申请号:DEB0079191
申请日:1964-11-04
Applicant: BASF AG
Inventor: FEILER DR PAUL , TOUSSAINT DR HERBERT , PALM DR ALBERT
IPC: C07D333/08
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公开(公告)号:DE1154081B
公开(公告)日:1963-09-12
申请号:DEB0065803
申请日:1962-02-03
Applicant: BASF AG
Inventor: MERZ DR WOLFGANG , NEBE DR ERICH , TOUSSAINT DR HERBERT
Abstract: Crude aqueous solutions of glyoxal are purified by contacting the solution with an anion-exchange resin containing tertiary amino or quaternary ammonium groups in the bicarbonate salt form. The process is especially suitable for purification of crude glyoxal solutions such as are obtained by oxidation of acetaldehyde with aqueous nitric acid or by catalytic dehydrogenation of ethylene glycol. Comparative examples describe the purification of crude aqueous glyoxal solutions by the use of active carbon or by treatment with calcium carbonate.
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公开(公告)号:DE1144732B
公开(公告)日:1963-03-07
申请号:DEB0057454
申请日:1960-04-12
Applicant: BASF AG
Inventor: ENGEL DR HANS , TOUSSAINT DR HERBERT
IPC: C10M135/30
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公开(公告)号:DE1141644B
公开(公告)日:1962-12-27
申请号:DEB0057042
申请日:1960-03-12
Applicant: BASF AG
Inventor: ENGEL DR HANS , TOUSSAINT DR HERBERT
IPC: C10M135/30
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公开(公告)号:DE1253391B
公开(公告)日:1967-11-02
申请号:DEB0078898
申请日:1964-10-13
Applicant: BASF AG
Inventor: HAARER DR ERICH , FUERST DR ERNST , TOUSSAINT DR HERBERT
IPC: C10G21/20
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公开(公告)号:DE1143600B
公开(公告)日:1963-02-14
申请号:DEB0060755
申请日:1961-01-07
Applicant: BASF AG
Inventor: REITZ DR ORTWIN , TOUSSAINT DR HERBERT , ENGEL DR HANS
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