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公开(公告)号：MY140522A
公开(公告)日：2009-12-31
申请号：MYPI20012767
申请日：2001-06-13
Applicant: BASF AG
Inventor： MACHHAMMER OTTO DR , ADAMI CHRISTOPH DR , HECHLER CLAUS DR , ZEHNER PETER DR
IPC: C07C27/14 , C07C45/33 , B01J23/00 , B01J23/28 , B01J23/31 , B01J23/34 , B01J23/652 , B01J23/656 , B01J23/88 , B01J27/057 , B01J37/02 , C07B61/00 , C07C5/333 , C07C5/48 , C07C7/11 , C07C11/06 , C07C27/00 , C07C45/35 , C07C47/22 , C07C51/215 , C07C51/25 , C07C57/04 , C07C57/05 , C07C57/07
Abstract: ACROLEIN AND/OR ACRYLIC ACID ARE PREPARED FROM PROPANE AND/OR PROPENE BY A PROCESS COMPRISING THE FOLLOWING STEPS: (A) SEPARATION OF PROPANE AND/OR PROPENE FROM A PROPANE AND/OR PROPENE-CONTAINING GAS MIXTURE BY ABSORPTION (1) IN AN ABSORBENT, (B) SEPARATION OF THE PROPENE AND/OR PROPENE FROM THE ABSORBENT TO GIVE GAS B AND (C) USE OF THE GAS B OBTAINED IN STAGE (B) FOR AN OXIDATION (2) OF PROPANE AND/OR PROPENE TO ACROLEIN AND/OR ACRYLIC ACID, NO HETEROGENEOUSLY CATALYZED DEHYDROGENATION OF PROPANE WITHOUT SUPPLY OF OXYGEN BEING CARRIED OUT BETWEEN STEPS (B) AND (C).
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公开(公告)号：CZ20024057A3
公开(公告)日：2003-05-14
申请号：CZ20024057
申请日：2001-06-08
Applicant: BASF AG
Inventor： MACHHAMMER OTTO DR , SCHINDLER GOETZ-PETER DR , TENTEN ANDREAS DR , HARTH KLAUS DR , ZEHNER PETER DR , MULLER-ENGEL KLAUS JOACHIM DR , ROSOWSKI FRANK DR , BORGMEIER FRIEDER DR
IPC: C07C27/14 , C07B61/00 , C07C5/333 , C07C11/06 , C07C45/33 , C07C45/35 , C07C47/22 , C07C51/215 , C07C51/25 , C07C57/04 , C07C57/05 , C07C57/07
Abstract: In a process for the preparation of acrolein or acrylic acid or a mixture thereof from propane, the propane is subjected, in a first reaction stage, to a partial dehydrogenation under heterogeneous catalysis to give propene, of the components contained in the product gas mixture formed in the first reaction stage other than propene and propane at least a portion of the molecular hydrogen present is then separated off from said mixture and the product gas mixture is then used for the preparation of acrolein and/or acrylic acid by gas-phase catalytic propylene oxidation, molecular nitrogen being present for diluting the reaction gas mixture during the propylene oxidation.
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公开(公告)号：DE19740253A1
公开(公告)日：1999-03-18
申请号：DE19740253
申请日：1997-09-12
Applicant: BASF AG
Inventor： ECK BERND , MACHHAMMER OTTO DR , PROLL THEO DR , SCHLIEPHAKE VOLKER DR , THIEL JOACHIM DR , BROELLOS KLAUS DR
Abstract: Hot gas mixtures with at least two condensable components and a high content of non-condensable component(s) are fractionated by passing through a column containing devices with a separating action, and condensing out the condensable components by cooling.
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公开(公告)号：DE19606877A1
公开(公告)日：1997-08-28
申请号：DE19606877
申请日：1996-02-23
Applicant: BASF AG
Inventor： MACHHAMMER OTTO DR , DAMS ALBRECHT DR , ECK BERND , PROLL THEO DR
Abstract: 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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公开(公告)号：MY144056A
公开(公告)日：2011-08-15
申请号：MYPI20055753
申请日：2005-12-08
Applicant: BASF AG
Inventor： CRONE SVEN DR , MACHHAMMER OTTO DR , SCHINDLER GOTZ-PETER DR
IPC: C07C5/327
Abstract: - 23 - PREPARATION OF PROPME FROM.-PROPANE ABSTIACT THE INVENTION RELATES TO A PROCESS FOR PIEPARIN,O PIOPENE FROM PROPANE, COMPRISING THE 5 STEPS: A) A FEED GAS SIREARN A COMPSING PROPANE IS PROVIDED; B) THE FEED PAS STREAM A COMPRISING PROPANE AND AN OXYGENOUS -AS STREARN ARE FED 10 INTO A DEHYDRO.-ENATION ZONE AND PROPANE IS SUBJECTED TO A NONOXIDATIVE CAIALYLIC, AUTOTHEIRRIAL DCHYDROGENATION TO PROPENE TO OBTAIN A PI ODUCI GAS STREAM B CORNPRIS- ING PROPANE, PIOPENE, METHANE. ETHANE. ETHENE, C4' HYDROCWBOJIS, CARBON NIONOX- IDE, CAIBON DIOXIDE, STEAM AND LWDRO2CN, 15 Q THE PRODUCT OAS STREAM B IS COOLED AND SICAM IS IERNOVED BY CONDENS3TION LO OB- IAIN A SICARRI-DEPLETED PRODUCT GAS STICARN C, D) CARBON DIOXIDE IS IENIOVED BY OAS SCRUBBJN2 TO OBTAIN A CARBON DIOXIDE-DEPLETED PRODUCT GAS STREAM D, 20 E) THC PRODUCT -AS STICARN D IS COOLED AND A LIQUID HYDIOCAIBON STREAM EL CORNPLISINO PROPANE, PROPENE, METHANE, ETHANE. ETHERIC AND C@' LI@,DROCARBONS IS IEMOVED BN CONDENSATION IO LEAVE A RESIDUAL GAS STREAM E2 CORNPIISIN.- METHANE, HYDJO,GEN AND CARBON MONOXIDE. 25 F) THE LIQUID HYDROCARBON STREAM EL IS FED INTO A FIRST DISTILLATION ZONE AND SEPARATED DISTILLAIIVELY INTO A STREAM 1-1 COMPIISING PROPANE. PROPENE AND THE C4' HYDIOCAR- BONS AND A STREAM 1`2 COMPRISING ETHANE AND CIHENE. 30 G) THE STICARN FJ IS FED INTO A SECOND DISIFLLANON ZONE AND SEPARATED DISTILLANVELY INTO A PIODUCT STREAM 21 CORNPIISIN2 PROPENE AND A STREAM G2 COMPIISING PROPANE AND THE C4' HYDI OCAI BONS.
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Patent Agency Ranking
公开(公告)号：MY117845A
公开(公告)日：2004-08-30
申请号：MYPI9700099
申请日：1997-01-09
Applicant: BASF AG
Inventor： ENGERT GERD-JURGEN DR , MACHHAMMER OTTO DR , PROLL THEO DR , DOCKNER TONI DR
IPC: B01D9/02 , B01D3/00 , C07B61/00 , C07C51/235 , C07C51/25 , C07C51/43 , C07C51/48 , C07C57/04 , C07C57/05 , C07C57/055 , C07C57/07 , C07C69/54
Abstract: A PROCESS FOR PREPARING ACRYLIC ACID AND/OR ESTERS COMPRISES THE STEPS OF: (A)CATALYTIC GAS PHASE OXIDATION OF PROPENE AND/OR ACROLEIN TO ACRYLIC ACID TO OBTAIN A GASEOUS REACTION PRODUCT COMPRISING ACRYLIC ACID, (B) SOLVENT ABSORPTION OF THE REACTION PRODUCT, (C)DISTILLATION OF THE SOLVENT LOADED WITH ACRYLIC ACID TO OBTAIN A CRUDE ACRYLIC ACID AND THE SOLVENT, (D)PURIFICATION OF THE CRUDE ACRYLIC ACID BY CRYSTALLIZATION AND (E)OPTIONALLY ESTERIFICATION OF THE CRYSTALLINE ACRYLIC ACID. (FIG. 1)
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公开(公告)号：ES2135120T3
公开(公告)日：1999-10-16
申请号：ES96103150
申请日：1996-03-01
Applicant: BASF AG
Inventor： HEFNER WERNER DR , MACHHAMMER OTTO DR , NEUMANN HANS-PETER DR , TENTEN ANDREAS DR , RUPPEL WILHELM DR , VOGEL HERBERT DR
Abstract: In continuous gas phase oxidn. of C3H6 to acrolein (I) and/or acrylic acid (II) with heterogeneous catalyst in an oxidn. reactor, the charge gas mixt. (III) contains only inert diluent gas(es) (IIIA) in addn. to C3H6 and O2 and (pt. of) (IIIA) is sepd. from the prodn. gas mixt. and recycled to the oxidn. reactor. The novelty is that (IIIA) consists of over 85 vol. % 1-5C satd. hydrocarbon(s).
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公开(公告)号：DK0731080T3
公开(公告)日：1998-10-12
申请号：DK96103128
申请日：1996-03-01
Applicant: BASF AG
Inventor： HEFNER WERNER DR , MACHHAMMER OTTO DR , NEUMANN HANS-PETER DR , TENTEN ANDREAS DR , RUPPEL WILHELM DR , VOGEL HERBERT DR
IPC: C07B35/04 , C07B41/06 , C07B41/08 , C07C27/00 , C07C45/32 , C07C45/35 , C07C47/22 , C07C51/235 , C07C51/25 , C07C51/265 , C07C57/05 , C07D301/08
Abstract: Continuous gas phase partial oxidn. of an organic cpd. (I) with heterogeneous catalyst in an oxidn. reactor uses a charge gas mixt. contg. (I) O2 and an inert diluent gas (II), which consists partly of combustible gases (IIA). The novelty is that the (IIA) fraction of (II) in the prod. gas stream leaving the oxidn. reactor is not recycled to partial oxidn. but used in another chemical reaction.
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公开(公告)号：DE19627847A1
公开(公告)日：1998-01-15
申请号：DE19627847
申请日：1996-07-10
Applicant: BASF AG
Inventor： ECK BERND , MACHHAMMER OTTO DR , PROLL THEO DR , SCHLIEPHAKE VOLKER DR
Abstract: Disclosed is a method of preparing acrylic acid or methacrylic acid by: (a) preparing a gaseous product mixture having essentially the composition of a reaction mixture of catalytic gas-phase oxidation of C3/C4 alkanes, alkenes, alkanols and/or alkanals and/or precursors thereof to form acrylic acid or methacrylic acid, characterized by (b) condensation of the product mixture, (c) crystallization of the acrylic acid or methacrylic acid from the solution obtained in stage (b), and (d) extraction of the resulting crystals from the mother liquor.
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公开(公告)号：DE19525506A1
公开(公告)日：1997-01-16
申请号：DE19525506
申请日：1995-07-13
Applicant: BASF AG
Inventor： HEFNER WERNER DR , MACHHAMMER OTTO DR , NEUMANN HANS-PETER DR , TENTEN ANDREAS DR , RUPPEL WILHELM DR , VOGEL HERBERT DR
IPC: C07C45/35 , C07C51/25 , C07C57/055 , C07C47/22
Abstract: In continuous gas phase oxidn. of C3H6 to acrolein (I) and/or acrylic acid (II) with heterogeneous catalyst in an oxidn. reactor, the charge gas mixt. (III) contains only inert diluent gas(es) (IIIA) in addn. to C3H6 and O2 and (pt. of) (IIIA) is sepd. from the prodn. gas mixt. and recycled to the oxidn. reactor. The novelty is that (IIIA) consists of over 85 vol. % 1-5C satd. hydrocarbon(s).
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