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公开(公告)号：JP2007145857A
公开(公告)日：2007-06-14
申请号：JP2007024607
申请日：2007-02-02
Applicant: Basf Ag , ビーエーエスエフ アクチェンゲゼルシャフトBASF Aktiengesellschaft
IPC: C07C67/54 , C07B61/00 , C07C27/02 , C07C67/08 , C07C67/327 , C07C67/475 , C07C67/60 , C07C69/54
CPC classification number: C07C67/327 , C07C67/08 , C07C67/60 , C07C69/54
Abstract: PROBLEM TO BE SOLVED: To provide a method for esterifying (meth)acrylic acid with an alkanol in the presence of an esterifying catalyst, capable of performing the esterification economically and simply.
SOLUTION: This method for esterifying (meth)acrylic acid is provided by separating unconverted starting materials and a formed (meth)acrylates by distillation to form a bottom product containing oxyesters, separating the bottom product, heating at 150-250°C in the presence of an acid, and adjusting pressure so as to directly evaporating cleaved products formed under the above condition from the oxyesters contained in the bottom product.
COPYRIGHT: (C)2007,JPO&INPITAbstract translation: 待解决的问题：提供一种在酯化催化剂存在下用烷醇酯化（甲基）丙烯酸的方法，其能够经济地和简单地进行酯化。 解决方案：通过蒸馏分离未转化的原料和形成的（甲基）丙烯酸酯，形成含有羟基酯的底部产物，分离底部产物，加热至150-250℃，提供该（甲基）丙烯酸酯化方法 在酸的存在下，调节压力，以直接蒸发在上述条件下形成的裂解产物从底部产物中含有的含氧酯。 版权所有（C）2007，JPO＆INPIT
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2.发明专利
公开(公告)号：DE19746688A1
公开(公告)日：1999-04-29
申请号：DE19746688
申请日：1997-10-22
Applicant: BASF AG
Inventor： AICHINGER HEINRICH DR , HERBST HOLGER DR , NESTLER GERHARD DR , SCHROEDER JUERGEN DR
Abstract: The process comprises (a) emptying the parts; (b) washing them with aqueous 5-50 wt.% alkali hydroxide solution; (c) emptying; (d) optionally rinsing with water; and (e) optionally drying. An Independent claim is also included for the use of alkali hydroxides for this purpose.
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公开(公告)号：ES2122724T3
公开(公告)日：1998-12-16
申请号：ES96100052
申请日：1996-01-04
Applicant: BASF AG
Inventor： HERBST HOLGER DR , NESTLER GERHARD DR , HAMMON ULRICH DR
Abstract: In the sepn. of (meth)acrylic acid (I) from mixts. by rectification, in which (I) is discharged from the column at a point higher than the inlet for the mixt., the refluxing liq. is removed in at least one position of the column, the oligomerised and/or polymerised (I) is sepd. and the liq. is recycled to the column.
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公开(公告)号：ES2116791T3
公开(公告)日：1998-07-16
申请号：ES96100461
申请日：1996-01-13
Applicant: BASF AG
Inventor： HERBST HOLGER DR , HAMMON ULRICH DR
Abstract: In the sepn. of (meth)acrylic acid (I) from mixts. contg. (I) as main prod. and lower aldehydes as by-prods. by rectification in a column with a distn. zone and a concn. zone, the mixt. is not supplied to the column directly. Instead, it is passed to a heated dwell vessel connected to the concn. zone, in which the mixt. is kept boiling, and the sump liquid from this vessel is fed to the column.
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公开(公告)号：CZ9702743A3
公开(公告)日：1998-01-14
申请号：CZ274397
申请日：1996-03-15
Applicant: BASF AG
Inventor： KOCH ANDREAS DR , AUMULLER ALEXANDER DR , MITULLA KONRAD DR , TREMMEL GREGOR , HERBST HOLGER DR
IPC: C07D211/58 , C07B63/04 , C07D211/94 , C07F9/59 , C09K15/22 , C09K15/30
CPC classification number: C09K15/30 , C07B63/04 , C07D211/94 , C07F9/598
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Patent Agency Ranking
公开(公告)号：CZ274397A3
公开(公告)日：1998-01-14
申请号：CZ274397
申请日：1996-03-15
Applicant: BASF AG
Inventor： KOCH ANDREAS DR , AUMULLER ALEXANDER DR , MITULLA KONRAD DR , TREMMEL GREGOR , HERBST HOLGER DR
IPC: C07D211/58 , C07B63/04 , C07D211/94 , C07F9/59 , C09K15/22 , C09K15/30
Abstract: PCT No. PCT/EP96/01122 Sec. 371 Date Sep. 22, 1997 Sec. 102(e) Date Sep. 22, 1997 PCT Filed Mar. 15, 1996 PCT Pub. No. WO96/29311 PCT Pub. Date Sep. 26, 19964-Acylaminopiperidine N-oxides IaA1B1(Ia)where A1 is hydrogen or an organic radical and B1 is a radical IIa where R1-R4 are each C1-C4-alkyl and R1 and R2, on the one hand, and R3 and R4, on the other hand, may furthermore be bonded to form a 5-membered or 6-membered ring, R5 is H or C114 C4-alkyl and R6 is H or C1-C18-alkyl, are used for stabilizing organic materials against the harmful effect of free radicals, particularly in the distillation of monomers which undergo free radical polymerization, especially styrene.
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公开(公告)号：CZ9503021A3
公开(公告)日：1996-06-12
申请号：CZ302195
申请日：1995-11-16
Applicant: BASF AG
Inventor： HERBST HOLGER DR , NESTLER GERHARD DR , DARLINGZON JERRY , MARTAN HANS DR
IPC: C07C57/075 , C07C51/44 , C07C57/055 , C07C57/07
CPC classification number: C07C51/44 , Y10S203/22 , C07C57/04
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公开(公告)号：DE19746689A1
公开(公告)日：1999-04-29
申请号：DE19746689
申请日：1997-10-22
Applicant: BASF AG
Inventor： HERBST HOLGER DR , NESTLER GERHARD DR , HAMMON ULRICH DR
IPC: C07C51/25 , C07C51/44 , C07C51/48 , C07C51/50 , C07C57/04 , C07C57/055 , C07C57/07 , C07C57/075
Abstract: Recovery of (meth)acrylic acid from a mixture containing a higher boiling solvent involves distillation in a column with an inlet for the mixture between the evaporator and distillation and enhancer parts and a side discharge for (meth)acrylic acid. A polymerization inhibitor is introduced into the column near the top and, in a larger amount, near the side discharge.
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公开(公告)号：DE59600719D1
公开(公告)日：1998-12-03
申请号：DE59600719
申请日：1996-01-04
Applicant: BASF AG
Inventor： HERBST HOLGER DR , NESTLER GERHARD DR , HAMMON ULRICH DR
Abstract: In the sepn. of (meth)acrylic acid (I) from mixts. by rectification, in which (I) is discharged from the column at a point higher than the inlet for the mixt., the refluxing liq. is removed in at least one position of the column, the oligomerised and/or polymerised (I) is sepd. and the liq. is recycled to the column.
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公开(公告)号：CZ270196A3
公开(公告)日：1997-06-11
申请号：CZ270196
申请日：1996-09-16
Applicant: BASF AG
IPC: C07C27/02 , C07C67/08 , C07C67/327 , C07C67/60 , C07C69/54
Abstract: In the esterification of (meth)acrylic acid with an alkanol in the presence of an acid esterification catalyst, in which unreacted starting materials and the (meth)acrylic ester are sepd. by distn., a sump prod. (I) contg. oxy esters (II) is formed. The novelty is that (I) is sepd. and heated at 150-250 degrees C in the presence of acid and at a pressure at which prods. formed by cracking (II) vaporise directly.
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