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公开(公告)号：DE2301139A1
公开(公告)日：1974-07-18
申请号：DE2301139
申请日：1973-01-11
Applicant: BASF AG
Inventor： BAER KARL DR , HOFFMANN HERWIG DR , VOGES DIETER DR , WEGERICH ANTON DR , WINDERL SIEGFRIED DR
IPC: B01J23/75 , B01J23/889 , B01J27/185 , B01J27/186 , B01J37/00 , C07C209/48 , C07C85/12 , B01J11/32
Abstract: Primary amines are prepd. by nitrile hydrogenation using a solid particulate catalyst derived from oxides of CO and/or Ni and contains Mn and/or H3PO4 and which is provided with longitudinal pore spaces opening out towards catalyst grain boundaries and is prepd. by a standard process, through addn. of fibrous, heat-removable particles to slurried catalyst compsn., heating and reducing in an H2 stream. Fibre type and quantity are chosen so that pore spaces have a dia. of 0.03-0.5 (0.1) mm and make up 4-10 vol. % of catalyst grain.
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公开(公告)号：AT249659B
公开(公告)日：1966-10-25
申请号：AT703564
申请日：1964-08-14
Applicant: BASF AG
Inventor： EISFELD KARL DR , HAUG PETER DR , SCHOLZ HEINRICH DR , WEGERICH ANTON DR
IPC: C07C255/04 , B01D9/02 , C07C20060101 , C07C67/00 , C07C253/00
Abstract: Adiponitrile is purified by cooling the liquid or heating the solid so as to produce a suspension of adiponitrile crystals in liquid adiponitrile at a temperature of below 2.0 DEG C., separating the crystals, e.g. on a filter press, vacuum filter, pressure filter or in a centrifuge, washing the crystals, e.g. with pure liquid adiponitrile or with water or an organic liquid, and returning the separated liquid adiponitrile, with or without the wash liquid, to the first or another crystallization zone. The wash liquid may be pure adiponitrile obtained by partly melting the separated solid adiponitrile, e.g. while still in the separation apparatus.
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Patent Agency Ranking
公开(公告)号：NL142942C
公开(公告)日：1974-08-15
申请号：NL6502413
申请日：1965-02-25
Applicant: BASF AG
Inventor： RIEGELBAUER GEORG DR , HAARER ERICH DR , WEGERICH ANTON DR , KUERZINGER ALFRED DR
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公开(公告)号：DE2149603B1
公开(公告)日：1973-04-26
申请号：DE2149603
申请日：1971-10-05
Applicant: BASF AG
Inventor： AREND WOLFGANG DR , EISFELD KARL DR , HAUG PETER DR , HIMMELHAN EMIL DIPL-ING , SCHOLZ HEINRICH DR , WEGERICH ANTON DR
IPC: C07C255/04 , C07C20060101 , C07C67/00 , C07C253/00 , C07C253/34 , C07C121/26
Abstract: 1396115 Continuous purification of adiponitrile BADISCHE ANILIN- & SODAFABRIK AG 4 Oct 1972 [5 Oct 1971] 45730/72 Heading C2C The continuous purification of adiponitrile is effected by cooling the impure adiponitrile in a crystallization zone, indirectly by the evaporation of liquid ammonia (e.g. at -18 to -6C.), to form a suspension of finely divided solid adiponitrile (e.g. mean diameter 0À1 to 1 mm.) in liquid adiponitrile, separating the solid from the liquid, washing the solid dinitrile with liquid adiponitrile, separating the mother liquor, obtained after separation of the solid dinitrile, into two unequal portions by weight, returning the larger (e.g. 55 to 90% by weight of the total) without intervening treatment to the crystallization zone and purifying the smaller part by distillation before returning this also to the crystallization zone. The suspension produced preferably contains 30 to 50% by weight of solid dinitrile and is conveniently allowed to stand before being separated. The liquid adiponitrile used to wash the solid is preferably pure liquid adiponitrile obtained by melting some of the separated crystals and may be returned to the crystallization zone after use. 1 - Cyanocyclopentanimine - 2 is obtained as contaminant from that portion of mother liquor subjected to purification by distillation.
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公开(公告)号：CH434227A
公开(公告)日：1967-04-30
申请号：CH1046264
申请日：1964-08-11
Applicant: BASF AG
Inventor： EISFELD KARL DR , HAUG PETER DR , SCHOLZ HEINRICH DR , WEGERICH ANTON DR
IPC: C07C255/04 , B01D9/02 , C07C20060101 , C07C67/00 , C07C253/00 , C07C121/26
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公开(公告)号：DE844738C
公开(公告)日：1952-07-24
申请号：DEB0008391
申请日：1950-07-28
Applicant: BASF AG
Inventor： RAICHLE LUDWIG DIPL-ING , WEGERICH ANTON DR
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