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公开(公告)号:DE1195289B
公开(公告)日:1965-06-24
申请号:DEB0069029
申请日:1962-09-29
Applicant: BASF AG
Inventor: SCHENK DR WALTER , NIENBURG DR HANS , WALLIS DR ALBRECHT
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公开(公告)号:DE1182649B
公开(公告)日:1964-12-03
申请号:DEB0071103
申请日:1963-03-13
Applicant: BASF AG
Inventor: WALLIS DR ALBRECHT , SCHENK DR WALTER , NIENBURG DR HANS
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公开(公告)号:DE1212063B
公开(公告)日:1966-03-10
申请号:DEB0076411
申请日:1964-04-20
Applicant: BASF AG
Inventor: SINN DR RICHARD , KINDLER DR HUBERT , NIENBURG DR HANS , VOGEL DIPL-ING LUDWIG , WALLIS DR ALBRECHT
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公开(公告)号:DE1147216B
公开(公告)日:1963-04-18
申请号:DEB0063371
申请日:1961-07-22
Applicant: BASF AG
Inventor: SCHENK DR WALTER , VOGEL DIPL-ING LUDWIG , WALLIS DR ALBRECHT
IPC: C07C51/41 , C07C51/42 , C07C51/43 , C07D213/78
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公开(公告)号:DE1144254B
公开(公告)日:1963-02-28
申请号:DEB0063190
申请日:1961-07-08
Applicant: BASF AG
Inventor: SCHENK DR WALTER , WALLIS DR ALBRECHT
IPC: C07C51/41
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公开(公告)号:DE1142597B
公开(公告)日:1963-01-24
申请号:DEB0063356
申请日:1961-07-21
Applicant: BASF AG
Inventor: SCHENK DR WALTER , WALLIS DR ALBRECHT , VOGEL DIPL-ING LUDWIG
Abstract: Dry neutral alkali metal benzenecarboxylates, which may be thermally converted into other alkali metal benzenecarboxylates, are recovered from their aqueous solutions by adjusting the latter to a pH 0.05-0.9 unit above the point of equivalence by addition of alkali metal hydroxide and dividing the solutions thus obtained into two streams, of which one is led into a conventional evaporator and the other is sprayed into a wash tower through which a CO2-containing gas passes in countercurrent. The sodium and potassium salts of benzoic, phthalic and isophthalic acids are specifically mentioned as recoverable salts. Specification 840,040 and U.S.A. Specification 2,930,813 are referred to.
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公开(公告)号:DE1238002B
公开(公告)日:1967-04-06
申请号:DEB0077336
申请日:1964-06-20
Applicant: BASF AG
Inventor: WALZ DR HELMUT , WALLIS DR ALBRECHT , SINN DR RICHARD , NIENBURG DR HANS
IPC: C07C51/47
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公开(公告)号:DE1168886B
公开(公告)日:1964-04-30
申请号:DEB0070894
申请日:1963-02-27
Applicant: BASF AG
Inventor: HAUSDOERFER DIPL-ING BERTHOLD , SINN DR RICHARD , WALLIS DR ALBRECHT
IPC: C07C51/41
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公开(公告)号:DE1135446B
公开(公告)日:1962-08-30
申请号:DEB0062817
申请日:1961-06-08
Applicant: BASF AG
Inventor: SCHENK DR WALTER , WALLIS DR ALBRECHT , SCHANZ DR RUDI
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