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公开(公告)号：MY136884A
公开(公告)日：2008-11-28
申请号：MYPI20032640
申请日：2003-07-15
Applicant: BASF AG
Inventor： DIEHL VOLKER DR , JAGER ULRICH DR , SCHRODER JURGEN DR , THIEL JOACHIM DR
Abstract: A PROCESS FOR CLEANING APPARATUS IN WHICH (METH)ACRYLIC ACID-CONTAINING ORGANIC SOLVENTS HAVE BEEN TREATED AND/ OR @GENERATED AND CONTAIN FOULING AND/OR POLYMER AND RESIDUES OF ORGANIC SOLVENT, IN WHICH THE APPARATUS CONTENTS ARE SUBJECTED TO @A STEAM DISTILLATION IN THE APPARATUS.
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公开(公告)号：MY122517A
公开(公告)日：2006-04-29
申请号：MYPI20001790
申请日：2000-04-26
Applicant: BASF AG
Inventor： AICHINGER HEINRICH DR , NESTLER GERHARD DR , SCHRODER JURGEN DR
Abstract: FREE RADICAL POLYMERIZATIONS IMMEDIATELY TERMINATED BY A PROCESS COMPRISING THE ADDITION OF AN INHIBITOR SOLUTION WHICH CONTAINS PHENOTHIAZINE AND AT LEAST 50% (W/W) N-ALKYLPYRROLIDONE TO A SYSTEM UNDERGOING FREE RADICAL POLYMERIZATION, WHEREIN THE INHIBITOR SOLUTION ALSO CONTAINS P-METHOXYPHENOL (MEHQ).
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公开(公告)号：MY120567A
公开(公告)日：2005-11-30
申请号：MYPI9901164
申请日：1999-03-26
Applicant: BASF AG
Inventor： BOLZ GERHARD DR , NESTLER GERHARD DR , SCHRODER JURGEN DR
IPC: C07C51/42 , C07C57/05 , C07C27/02 , C07C51/21 , C07C51/44 , C07C53/10 , C07C57/07 , C07C67/08 , C07C67/48 , C07C69/14 , C07C69/54
Abstract: A PROCESS FOR PREPARING ACRYLIC ACID AND/OR AN ACRYLATE COMPRISING THE FOLLOWING STAGE A AND, IF DESIRED, B AND, IF DESIRED, C: A: COOLING A GASEOUS REACTION MIXTURE WHICH COMPRISES ACRYLIC ACID AND IS OBTAINED IN THE GAS-PHASE OXIDATION TO PREPARE ACRYLIC ACID, USING AN ACRYLIC ACID CONTAINING NOT MORE THAN 5% BY WEIGHT OF WATER, TO GIVE A GASEOUS MIXTURE COMPRISING (METH)ACRYLIC ACID; B: SEPARATING THE GASEOUS MIXTURE COMPRISING ACRYLIC ACID TO GIVE A LOW-BOILING FRACTION AND A BOTTOM PRODUCT WHICH COMPRISES CRUDE ACRYLIC ACID, AND C: ESTERIFYING THE CRUDE ACRYLIC ACID OBTAINED IN STAGE B BY MEANS OF ONE OR MORE ALKANOLS, TO GIVE AN ESTERIFICATION MIXTURE COMPRISING ONE OR MORE ACRYLATES, ONE OR MORE ACETIC ESTERS, ONE OR MORE MALEIC ESTERS, AND OLIGOMERIC AND POLYMERIC ACRYLATES.
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公开(公告)号：ID27329A
公开(公告)日：2001-03-29
申请号：ID20000832
申请日：2000-09-27
Applicant: BASF AG
Inventor： SUTORIS HEINZ FRIEDRICH DR , WAGENBLAST GERHARD DR , SCHLIEPHAKE VOLKER DR , SCHRODER JURGEN DR , KELLER HARALD DR , NESTLER GERHARD DR
IPC: C09K15/14 , C07B63/04 , C07C51/50 , C07C57/075 , C09K15/24
Abstract: Phosphorus-free inhibitor compositions containing (a) N-oxyl radical(s) and (b) a phenol, optionally substituted with up to three 1-4C alkyl, 2-4C alkenyl or 7-10C aralkyl groups. Phosphorus-free inhibitor compositions (I) containing (a) N-oxyl radical(s) and (b) a compound of formula (X). n = 0-3; R = 1-4C alkyl, 2-4C alkenyl or 7-10C aralkyl. Independent claims are also included for: (i) a method for stabilizing materials containing ethylenic double bond(s) against unwanted polymerisation by adding (I) to the material; (ii) a mixture containing an ethylenically unsaturated compound and an effective amount of (I) as polymerisation inhibitor.
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公开(公告)号：MY139338A
公开(公告)日：2009-09-30
申请号：MYPI20034795
申请日：2003-12-15
Applicant: BASF AG
Inventor： THIEL JOACHIM DR , DAMS ALBRECHT DR , SCHRODER JURGEN DR
Abstract: 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.
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Patent Agency Ranking
公开(公告)号：MY135762A
公开(公告)日：2008-06-30
申请号：MYPI20024919
申请日：2002-12-28
Applicant: BASF AG
Inventor： HAMMON ULRICH DR , SCHRODER JURGEN DR
IPC: C07C51/50 , C07C51/44 , C07C57/075 , C07C67/62
Abstract: A PROCESS FOR THE FRACTIONAL CONDENSATION OF A HOT GAS MIXTURE WHICH AS WELL AS ACRYLIC ACID CONTAINS AT LEAST ONE FURTHER CONDENSABLE COMPONENT IN A COLUMN IN THE PRESENCE OF AT LEAST ONE STABILIZER COMPRISES METERING IN AT LEAST A PORTION OF THE AT LEAST ONE STABILIZER AS A MELT.
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公开(公告)号：MY137951A
公开(公告)日：2009-04-30
申请号：MYPI20041366
申请日：2004-04-14
Applicant: BASF AG
Inventor： DIEHL VOLKER DR , JAGER ULRICH DR , HAMMON ULRICH DR , SCHRODER JURGEN DR , RISSEL STEFFEN
Abstract: (METH)ACRYLIC MONOMERS ARE SEPARATED BY A THERMAL SEPARATION PROCESS BY ASCENDING AT LEAST ONE ASCENDING GASEOUS STREAM IN A SEPARATING COLUMN CONTAINING A SEQUENCE OF MASS TRANSFER TRAYS AND A LIQUID STREAM THAT CONTAINS DISSOLVED POLYMERIZATION INHIBITOR WHICH DESCENDS IN THE SEPARATING COLUMN, AND IN AT LEAST ONE OF THE STREAMS BEING (METH)ACRYLIC MONOMERS; AND SPRAYING THE INNER SURFACE OF THE SEPARATING COLUMN WITH THE DESCENDING LIQUID STREAM THAT CONTAINS THE DISSOLVED POLYMERIZATION INHIBITOR, AND THE SEPARATING COLUMN HAVING INTERNALS, CERTAIN AREAS OF WHICH ARE SHADOW REGIONS OF THE SPRAYED DESCENDING LIQUID STREAM; AND WHICH SHADOW REGIONS ARE EQUIPPED BY COVERING MEANS (2) WHICH PREVENT CONTACT OF THE SHADOW REGIONS WITH (METH)ACRYLIC MONOMERS AND CONSEQUENTLY UNDESIRED POLYMERIZATION OF MONOMER.
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公开(公告)号：MY122671A
公开(公告)日：2006-04-29
申请号：MYPI20000588
申请日：2000-02-18
Applicant: BASF AG
Inventor： THIEL JOACHIM DR , SCHRODER JURGEN DR , NESTLER GERHARD DR
IPC: B01D5/00 , B01D47/14 , B01D3/14 , B01D3/16 , B01D3/20 , B01D3/22 , B01D3/26 , B01D3/32 , C07C51/43 , C07C51/44 , C07C51/487 , C07C51/50 , C07C57/05 , C07C57/055 , C07C57/07 , C07C57/075
Abstract: IN A PROCESS FOR THE FRACTIONAL CONDENSATION OF AN ACRYLIC ACID-CONTAINING PRODUCT GAS MIXTURE (1) OF A GAS-PHASE PARTIAL OXIDATION OF C3 PRECURSORS OF ACRYLIC ACID WITH MOLECULAR OXYGEN UNDER HETEROGENEOUS CATALYSIS, THE SEPARATION COLUMN (3) USED CONTAINS BOTH DUAL-FLOW TRAYS AND HYDRAULICALLY SEALED CROSS-FLOW TRAYS AS BAFFLES HAVING SEPARATION ACTIVITY. FIG/ 1
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公开(公告)号：MY120799A
公开(公告)日：2005-11-30
申请号：MYPI9901219
申请日：1999-03-31
Applicant: BASF AG
Inventor： BOLZ GERHARD DR , NESTLER GERHARD DR , SCHRODER JURGEN DR
Abstract: A PROCESS FOR PREPARING ACRYLIC ACID AND/OR ACRYLATES, WHICH COMPRISES STAGE A WITH OR WITHOUT STAGES B AND C:A: COOLING A GASEOUS REACTION MIXTURE WHICH COMPRISES ACRYLIC ACID AND IS OBTAINED IN THE GAS-PHASE OXIDATION TO PREPARE ACRYLIC ACID, USING AN INERT HIGH-BOILING SOLVENT, TO GIVE A GASEOUS MIXTURE COMPRISING ACRYLIC ACID;B: SEPARATING THE GASEOUS MIXTURE COMPRISING ACRYLIC ACID TO GIVE A LOW-BOILING FRACTION, A CRUDE ACRYLIC ACID, AND A BOTTOM PRODUCT,ANDC: ESTERIFYING THE CRUDE ACRYLIC ACID OBTAINED IN STAGE B BY MEANS OF ONE OR MORE ALKANOLS TO GIVE AN ESTERIFICATION MIXTURE COMPRISING ONE OR MORE ACRYLATES AND ONE OR MORE ACETIC ESTERS.
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公开(公告)号：CZ268697A3
公开(公告)日：1997-12-17
申请号：CZ268697
申请日：1996-02-27
Applicant: BASF AG
Inventor： MERKLE HANS DR , FRETSCHNER ERICH , SCHRODER JURGEN DR
IPC: C07D231/12 , C07D521/00
Abstract: PCT No. PCT/EP96/00790 Sec. 371 Date Aug. 20, 1997 Sec. 102(e) Date Aug. 20, 1997 PCT Filed Feb. 27, 1996 PCT Pub. No. WO96/27589 PCT Pub. Date Sep. 12, 1996A process for the preparation of an N-alkyl- or N-phenylalkyl-substituted pyrazole I by reacting the corresponding N-unsubstituted pyrazole II with an alcohol III of the formula R1-OH where R1 is the same alkyl or phenylalkyl group to be added to the unsubstituted nitrogen group -NH- of the pyrazole reactant. Both of the reactants, i.e. the pyrazole II and alcohol III compounds, are catalytically reacted in the liquid phase in a molar ratio of from 0.001:1 to 1:1, at temperatures of 50 DEG -400 DEG C. and under a subatmosheric pressure of from 0.8 bar up to a superatmospheric pressure of 250 bar. The catalyst required for this liquid phase reaction is selected as being at least one or more non-heterogeneous acid catalysts, their alkyl esters or their acid anhydrides.
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