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公开(公告)号:NO842152L
公开(公告)日:1984-12-03
申请号:NO842152
申请日:1984-05-30
Applicant: BASF AG
Inventor: BOTT KASPAR , KAIBEL GERD , HARTMANN HORST , IRNICH RUDOLF , BUELOW HORST
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公开(公告)号:CA1172988A
公开(公告)日:1984-08-21
申请号:CA389309
申请日:1981-11-03
Applicant: BASF AG
Inventor: HARTMANN HORST , HOCHSTEIN WALDHELM , KAIBEL GERD , MUELLER FRANZ-JOSEF
Abstract: O.Z. 0050/034781 A process for separating off organic iodine compounds from acetaldehyde by subjecting the acetaldehyde to azeotropic distillation with a hydrocarbon boiling at from 25 to 55.degree.C under atmospheric pressure.
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公开(公告)号:DE3324419A1
公开(公告)日:1984-01-12
申请号:DE3324419
申请日:1983-07-07
Applicant: BASF AG
Inventor: HARTMANN HORST , KAIBEL GERD , KIENER VOLKER DR , WOERZ OTTO DR
IPC: C07F5/04
Abstract: A process for the preparation of trimethyl borate by reaction of boric acid or boron trioxide and methanol in a distillation column having at least 15 separating stages and having a supply of the starting substances in a molar ratio of 3.7 to 5.5 mol of methanol per mol of boric acid at a bottom temperature of 70 to 150 DEG C and a temperature in the top of the column of 25 to 115 DEG C, water being withdrawn from the bottom and advantageously a fraction of the bottom liquid being drawn off from the bottom and fed back into the column above the bottom, and trimethyl borate and unreacted methanol being removed at the top of the column. The trimethyl borate which can be prepared by the process of the invention is used as a precursor for the preparation of boranes or sodium borohydride.
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公开(公告)号:DE3161250D1
公开(公告)日:1983-11-24
申请号:DE3161250
申请日:1981-10-12
Applicant: BASF AG
Inventor: HARTMANN HORST , HOCHSTEIN WALDHELM DR , KAIBEL GERD , MUELLER FRANZ-JOSEF DR
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公开(公告)号:DE3135280A1
公开(公告)日:1983-03-24
申请号:DE3135280
申请日:1981-09-05
Applicant: BASF AG
Inventor: ECKHARDT HEINZ DIPL CHEM DR , HALBRITTER KLAUS DIPL CHEM DR , KAIBEL GERD DIPL ING , HARTMANN HORST
Abstract: Isolation of methanol-free, or practically methanol-free, methyl formate from its mixtures with methanol, by subjecting these mixtures to an extractive distillation using a liquid, polyhydric alcohol and separating off the methanol-free methyl formate as the top fraction of this distillation.
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公开(公告)号:FI822292A0
公开(公告)日:1982-06-28
申请号:FI822292
申请日:1982-06-28
Applicant: BASF AG
Inventor: KIENER VOLKER , BITTLER KNUT , KAIBEL GERD , HARTMANN HORST
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公开(公告)号:DE3019766A1
公开(公告)日:1981-12-03
申请号:DE3019766
申请日:1980-05-23
Applicant: BASF AG
Inventor: KAIBEL GERD DIPL ING , HARTMANN HORST , HOCHSTEIN WALDHELM DIPL CHEM D , MUELLER FRANZ-JOSEF DIPL CHEM
IPC: B01D3/36 , C07C7/05 , C07C9/15 , C07C27/00 , C07C29/80 , C07C29/84 , C07C31/02 , C07C31/04 , C07C31/08 , C07C67/00 , C07C67/54 , C07C69/14 , B01D3/34
Abstract: Liquid mixtures containing aliphatic alcohols are separated, by distillation, into a higher-boiling alcohol-containing fraction and a lower-boiling fraction containing the other liquids, by carrying out the fractionation in the presence of water and of an alkanal and, over about 3/4 of the column height, in the presence of a non-volatile or only slightly volatile acid.
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公开(公告)号:ES2240322T3
公开(公告)日:2005-10-16
申请号:ES01130402
申请日:1996-06-29
Applicant: BASF AG
Inventor: HARTMANN HORST , BURST WOLFRAM , KAISER WULF DR , LAAS HARALD DR , GRAFEN PAUL DR , BOCKSTIEGEL BERNHARD DR
IPC: B01D3/00 , B01D3/10 , B01D3/14 , B01D3/16 , B01D3/26 , B01D3/32 , B01J19/32 , C07C17/38 , C07D311/72
Abstract: Procedimiento para la obtención de acetato de vitamina-E puro o de tocoferoles puros a partir de mezclas mediante rectificación en una columna con intercambio de materia, que contiene empaquetaduras de tela metálica con estructura ordenada, a una presión en la cabeza desde 0, 2 hasta 2 mbares, en el que a) se lleva a cabo la distribución del líquido con distribuidores en forma de canales con un número igual o mayor que 500 puntos de goteo por m2, b) disponiéndose los canales del distribuidor de líquidos girados con un ángulo de aproximadamente 90º alrededor del eje de la columna con respecto a las capas de tejido de los elementos de empaquetadura, que se encuentran directamente por debajo de estos distribuidores, c) encontrándose por debajo del distribuidor de los líquidos, 2 o varios elementos de empaquetadura con una altura de, tan solo, 20 hasta 100 mm, cuyas capas de tejido están giradas entre sí, respectivamente, 90º alrededor del eje de la columna, d) estando configurada la columna detal manera que, durante la rectificación no tenga lugar prácticamente un intercambio de calor a través de la pared de la columna, e) la columna está configurada de tal manera que pueda trabajarse prácticamente bajo exclusión del aire y f) la pérdida de presión por etapa de separación se reduce mediante un ajuste disminuido de la carga de líquido de tal manera, que las temperaturas, que se presentan en la cola se reduzcan por debajo del intervalo de descomposición del acetato de vitamina-E.
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公开(公告)号:ES2204526T3
公开(公告)日:2004-05-01
申请号:ES00909259
申请日:2000-02-28
Applicant: BASF AG
Inventor: HEIMANN FRANK , PESCHEL WERNER , BARTENBACH BERND , HARTMANN HORST , KEIL MICHAEL , WAHL JOSEF
IPC: B01D3/14 , B01D3/20 , C07C239/20
Abstract: The present invention relates to a process for the continuous preparation of methoxyamine hydrochloride by cleavage of acetone oxime methyl ether by means of hydrogen chloride and water, wherein the cleavage is carried out in a reaction column having less than 20 theoretical plates and the amount taken off at the top is set to at least 30% of the amount of feed.
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公开(公告)号:AT247083T
公开(公告)日:2003-08-15
申请号:AT00909259
申请日:2000-02-28
Applicant: BASF AG
Inventor: HEIMANN FRANK , PESCHEL WERNER , BARTENBACH BERND , HARTMANN HORST , KEIL MICHAEL , WAHL JOSEF
IPC: B01D3/14 , B01D3/20 , C07C239/20
Abstract: The present invention relates to a process for the continuous preparation of methoxyamine hydrochloride by cleavage of acetone oxime methyl ether by means of hydrogen chloride and water, wherein the cleavage is carried out in a reaction column having less than 20 theoretical plates and the amount taken off at the top is set to at least 30% of the amount of feed.
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