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公开(公告)号:FR1351245A
公开(公告)日:1964-01-31
申请号:FR928642
申请日:1963-03-20
Applicant: BASF AG
Inventor: SCHENK WALTER , NIENBURG HANS , DORSCHNER OSKAR
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公开(公告)号:GB940965A
公开(公告)日:1963-11-06
申请号:GB2266062
申请日:1962-06-13
Applicant: BASF AG
Inventor: SCHENK WALTER , SINN RICHARD , BECKMANN WILHELM
IPC: B01J3/02 , B01J10/00 , C07C51/353 , C07C51/41 , C07D213/79 , C07D213/803
Abstract: Terephthalic acid is produced by thermal rearrangement of alkali metal or thallium salts of other monocyclic aromatic carboxylic acids, in which process the initial reactant in the form of a dry fine powder is compressed into a compact gas-free mass in an elongated zone, the compression being sufficient to convey the compact mass through the zone, and the compact mass is intermittently ejected directly into a separate reaction zone for thermal rearrangement. The compression zone may taper into a reaction zone, e.g. of smaller diameter. Specifications 815,180, 816,248 and 840,040 are referred to.
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公开(公告)号:FR1335202A
公开(公告)日:1963-08-16
申请号:FR904787
申请日:1962-07-23
Applicant: BASF AG
Inventor: SCHENK WALTER , VOGEL LUDWIG , WALLIS ALBRECHT
IPC: C07C51/41 , C07C51/42 , C07C51/43 , C07D213/78
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公开(公告)号:FR1331671A
公开(公告)日:1963-07-05
申请号:FR903368
申请日:1962-07-09
Applicant: BASF AG
Inventor: SCHENK WALTER , WALLIS ALBRECHT
IPC: C07C51/41
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