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1. 发明专利

JP2007091759A Method for purifying mixture obtained through catalytic vapor-phase oxidation of propene and/or acrolein, by separation treatment inducing phase formation 审中-公开
标题翻译：通过分离处理诱导相形成来净化丙烯和/或丙烯酸的催化蒸气相氧化获得的混合物的方法
公开(公告)号：JP2007091759A
公开(公告)日：2007-04-12
申请号：JP2007003878
申请日：2007-01-11
申请人： Basf Ag , ビーエーエスエフアクチェンゲゼルシャフトBASF Aktiengesellschaft
发明人： MACHHAMMER OTTO , DAMS ALBRECHT DR , ECK BERND , PROLL THEO
IPC分类号： C07C51/43 , C07C57/04 , C07C51/235 , C07C51/25 , C07C51/44 , C07C57/05 , C07C57/07
CPC分类号： C07C51/43 , C07C57/04
摘要： PROBLEM TO BE SOLVED: To provide a method for purifying acrylic acid or methacrylic acid, whereby high purity and a high yield of the acid are achieved.
SOLUTION: (a) A mixture comprising the acrylic acid or methacrylic acid is subjected to a stringently defined separation treatment essentially in the absence of an organic solvent, this phase is then taken off, (b) at least a part of a residual phase from step (a) is subjected to a less stringently defined separation treatment, and (c) one of phases formed in step (b) is fed to the stringently defined separation treatment in step (a). This method offers a possibility that the overall economical efficiency of the treatment is increased through circulation and that the economical efficiency is improved even when static crystallization is omitted.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种纯化丙烯酸或甲基丙烯酸的方法，从而实现了高纯度和高收率的酸。解决方案：（a）包含丙烯酸或甲基丙烯酸的混合物基本上在不存在有机溶剂的情况下进行严格限定的分离处理，然后将该相脱除，（b）至少部分对步骤（a）的残留相进行较不严格的分离处理，和（c）步骤（b）中形成的一相中的步骤（a）中被严格限定的分离处理。该方法提供了通过循环增加处理的整体经济效率的可能性，并且即使省略静态结晶也提高了经济效率。版权所有（C）2007，JPO＆INPIT

2. 发明专利

DE19509352A1 未知
公开(公告)号：DE19509352A1
公开(公告)日：1996-09-19
申请号：DE19509352
申请日：1995-03-15
申请人： BASF AG
发明人： HEIDER MARC DR , KARCHER MICHAEL DR , SCHMIDT-RADDE MARTIN DR , DAMS ALBRECHT DR
IPC分类号： C07D233/58 , B01D61/36 , C07B61/00 , C07B63/00 , C07C41/08 , C07C41/42 , C07C43/16 , C07C43/162 , C07D207/26 , C07D223/10 , C07D233/54 , C07C43/178 , C07C43/188 , C07C209/60 , C07C209/86 , C07C211/20

3. 发明专利

CZ9602736A3 PROCESS OF CONTINUOUS PREPARATION OF ALKYL ESTERS OF (METH)ACRYLIC ACID AND APPARATUS FOR MAKING THE SAME 未知
公开(公告)号：CZ9602736A3
公开(公告)日：1998-05-13
申请号：CZ273696
申请日：1996-09-18
申请人： BASF AG
发明人： EXNER HERBERT DR , BAUR KARL DR , DOCKNER TONI DR , POTTHOFF CHRISTINE , DAMS ALBRECHT DR
IPC分类号： C07C67/08 , C07C67/54 , C07C69/54
CPC分类号： C07C67/08 , C07C69/54

4. 发明专利

MY139338A RECTIFICATIVE SEPARATION OF FLUIDS COMPRISING (METH) ACRYLIC MONOMERS 未知
公开(公告)号：MY139338A
公开(公告)日：2009-09-30
申请号：MYPI20034795
申请日：2003-12-15
申请人： BASF AG
发明人： THIEL JOACHIM DR , DAMS ALBRECHT DR , SCHRODER JURGEN DR
IPC分类号： C07C51/44 , B01D3/14 , B01D5/00 , C07C45/81 , C07C45/82 , C07C51/43 , C07C67/54
摘要： A PROCESS FOR RECTIFICATIVELY SEPARATING FLUIDS COMPRISING (METH)ACRYLIC MONOMERS IN A RECTIFICATION COLUMN BY DIRECTLY COOLING THE VAPOR COMPRISING (METH)ACRYLIC MONOMERS RISING TO THE TOP OF THE RECTIFICATION COLUMN TO FORM TOP CONDENSATE COMPRISING (METH)ACRYLIC MONOMERS, THE CONDENSATION SPACE AT THE TOP OF THE COLUMN BEING SEPARATED FROM THE REGION OF THE RECTIFICATION COLUMN CONTAINING THE SEPARATING INTERNALS ONLY BY AT LEAST ONE CHIMNEY TRAY FROM WHICH THE TOP CONDENSATE FORMED IS REMOVED FROM THE RECTIFICATION COLUMN, WHICH COMPRISES EFFECTING THE DIRECT COOLING OF THE VAPOR IN THE CONDENSATION SPACE IN AT LEAST TWO SPRAY ZONES WHICH ARE SPATIALLY SUCCESSIVE AND ARE FLOWED THROUGH BY VAPOR BY SPRAYING SUPERCOOLED TOP CONDENSATE COMPRISING ADDED POLYMERIZATION INHIBITOR, AND THE TEMPERATURE OF THE SPRAYED SUPERCOOLED TOP CONDENSATE BECOMING LOWER FROM SPRAY ZONE TO SPRAY ZONE IN THE FLOW DIRECTION OF THE VAPOR.

5. 发明专利

DE19746690A1 Recovery of (meth)acrylic acid from mixture containing higher boiling solvent 未知
公开(公告)号：DE19746690A1
公开(公告)日：1999-04-29
申请号：DE19746690
申请日：1997-10-22
申请人： BASF AG
发明人： HERBST HOLGER DR , NESTLER GERHARD DR , HAMMON ULRICH DR , DAMS ALBRECHT DR
IPC分类号： C07C51/44 , C07C57/055 , C07C57/07 , C07C57/075
摘要： In the recovery of (meth)acrylic acid from a mixture containing a higher boiling solvent by distillation in a column connected with evaporators, the column is an enhancer column, the mixture is fed to evaporators and (meth)acrylic acid is discharged at the side of the column.

6. 发明专利

CZ273696A3 PROCESS OF CONTINUOUS PREPARATION OF ALKYL ESTERS OF (METH)ACRYLIC ACID AND APPARATUS FOR MAKING THE SAME 未知
公开(公告)号：CZ273696A3
公开(公告)日：1998-05-13
申请号：CZ273696
申请日：1996-09-18
申请人： BASF AG
发明人： EXNER HERBERT DR , BAUR KARL DR , DOCKNER TONI DR , POTTHOFF CHRISTINE , DAMS ALBRECHT DR
IPC分类号： C07C67/08 , C07C67/54 , C07C69/54
摘要： The continuous prodn. of alkyl(meth)acrylates (I) by the reaction of (meth)acrylic acid (II) and 1-8C monohydric alcohols (III) in homogeneous liq. phase at elevated temp. in the absence of solvent and in presence of an acid esterification catalyst (IV). The process comprises (a) feeding (II), (III) and (IV) continuously into a reaction zone (RZ), (b) removing (I) after a residence time in the form of an azeotrope contg. water or water and (III) in addn. to (I) at the top of a rectifier column (RC) mounted over the RZ, (c) separating the distillate into an organic phase contg. (I) and aq. phase(s) contg. water, (d) recycling part of the organic phase via the top of the column and opt. returning water to the RZ, (e) separating (I) from the rest of the organic phase and removing part of the reaction mixt. continuously from the RZ. The RZ consists of a cascade of at least two reactors in series, and the outflow from one reactor provides the input flow for the next reactor. Also claimed is an appts. for this process.

7. 发明专利

MY138761A THERMAL SEPARATING PROCESS BETWEEN AT LEAST ONE GASEOUS AND AT LEAST ONE LIQUID STREAM, OF WHICH AT LEAST ONE COMPRISES (METH) ACRYLIC MONOMERS 未知
公开(公告)号：MY138761A
公开(公告)日：2009-07-31
申请号：MYPI20040008
申请日：2004-01-02
申请人： BASF AG
发明人： THIEL JOACHIM DR , VANDENMERSCH HUGUES , SCHRODER JURGEN DR , DAMS ALBRECHT DR
IPC分类号： B01D3/42 , C07C45/78 , C07C45/81 , C07C45/82 , C07C51/44 , C07C67/54
摘要： IN A THERMAL SEPARATING PROCESS BETWEEN AT LEAST ONE GASEOUS AND AT LEAST ONE LIQUID STREAM, OF WHICH AT LEAST ONE COMPRISES (METH) ACRYLIC MONOMERS, IN A SEPARATING COLUMN CONTAINING SIEVE TRAYS AS SEPARATING INTERNALS, AT LEAST SOME OF THE SIEVE TRAYS ARE OPERATED ABOVE AN ENTRAINMENT FRACTION OF 10% BY WEIGHT.

8. 发明专利

DE59600654D1 未知
公开(公告)号：DE59600654D1
公开(公告)日：1998-11-19
申请号：DE59600654
申请日：1996-03-08
申请人： BASF AG
发明人： HEIDER MARC DR , KARCHER MICHAEL DR , SCHMIDT-RADDE MARTIN DR , DAMS ALBRECHT DR
IPC分类号： C07D233/58 , B01D61/36 , C07B61/00 , C07B63/00 , C07C41/08 , C07C41/42 , C07C43/16 , C07C43/162 , C07D207/26 , C07D223/10 , C07D233/54

9. 发明专利

DE19631645A1 未知
公开(公告)号：DE19631645A1
公开(公告)日：1998-02-12
申请号：DE19631645
申请日：1996-08-05
申请人： BASF AG
发明人： HEIDA BERND , THIESSEN FRITZ DR , HAMMON ULRICH DR , DAMS ALBRECHT DR
IPC分类号： C07C51/25 , C07C51/48 , C07C57/04 , C07C57/05 , C07C57/07
摘要： In the production process for acrylic acid through catalytic vapour-phase oxidation of propene, acrylic acid is separated from the vapour-phase oxidation reaction mixture by means of an absorbing agent containing diphenyl, diphenyl ether or dimethyl phthalate and is also extracted from the vapour-phase oxidation acidic water by means of a solvent containing diphenyl, diphenyl ether or dimethyl phthalate.

10. 发明专利

DE19606877A1 未知
公开(公告)号：DE19606877A1
公开(公告)日：1997-08-28
申请号：DE19606877
申请日：1996-02-23
申请人： BASF AG
发明人： MACHHAMMER OTTO DR , DAMS ALBRECHT DR , ECK BERND , PROLL THEO DR
IPC分类号： C07C57/04 , C07C51/43 , C07C57/05 , C07C57/07
摘要： A process for purifying (meth)acrylic acid by phase separation techniques comprises the following steps: (a) a mixture containing (meth)acrylic acid is separated into distinct phases in the presence of an organic solvent, with the composition of the (meth)acrylic acid-rich phase remaining essentially unchanged, and this acid-rich phase is separated; (b) the remaining phase from step (a) is separated into indistinct phases; and (c) one of the phases from step (b) is returned to step (a). Also claimed is preparation of (meth)acrylic acid. Preferably in step (c) the acid-rich phase is returned to step (a). 1-100 (100) wt.% of the phase remaining from step (a) is used in step (b). Pure end product is added to steps (a) and (b). Step (a) involves crystallisation, freezing or sublimation, preferably static and/or dynamic crystallisation, and most preferably a combined static and dynamic crystallisation in which the residue from the dynamic crystallisation is added to the static crystallisation step and the crystallised product from the static crystallisation is returned to the dynamic crystallisation.

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