公开(公告)号：DE19508531A1

公开(公告)日：1996-09-12

申请号：DE19508531

申请日：1995-03-10

Applicant: BASF AG

Inventor： HEFNER WERNER DR ,  MACHHAMMER OTTO DR ,  TENTEN ANDREAS DR ,  RUPPEL WILHELM DR ,  VOGEL HERBERT DR

IPC: C07C45/35 ,  C07C51/235 ,  C07C51/25 ,  C07C51/265 ,  C07C57/055 ,  C07D301/08 ,  C07B35/04 ,  C07C47/22 ,  C07C57/05

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.

公开(公告)号：MY140670A

公开(公告)日：2010-01-15

申请号：MYPI20060028

申请日：2006-01-04

Applicant: BASF AG

Inventor： CRONE SVEN DR ,  MACHHAMMER OTTO DR ,  SCHINDLER GOETZ-PETER DR ,  BORGMEIER FRIEDER DR

IPC: C07C5/327

Abstract: A PROCESS FOR PREPARING PROPENE FROM PROPANE, COMPRISING THE STEPS: A) A FEED GAS STREAM A COMPRISING PROPANE IS PROVIDED; B) THE FEED GAS STREAM A COMPRISING PROPANE, IF APPROPRIATE STEAM AND, IF APPROPRIATE, AN OXYGENOUS GAS STREAM ARE FED INTO A DEHYDROGENATION ZONE AND PROPANE IS SUBJECTED TO A DEHYDROGENATION TO PROPENE TO OBTAIN A PRODUCT GAS STREAM B COMPRISING PROPANE, PROPENE, METHANE, ETHANE, ETHENE, CARBON MONOXIDE, CARBON DIOXIDE, STEAM, IF APPROPRIATE HYDROGEN AND, IF APPROPRIATE, OXYGEN; C) PRODUCT GAS STREAM B IS COOLED, IF APPROPRIATE CONDENSED AND STEAM IS REMOVED BY CONDENSATION TO OBTAIN A STEAM-DEPLETED PRODUCT GAS STREAM C; D) PRODUCT GAS STREAM C IS CONTACTED IN A FIRST ABSORPTION ZONE WITH A SELECTIVE, INERT ABSORBENT WHICH SELECTIVELY ABSORBS PROPENE TO OBTAIN AN ABSORBENT STREAM D1 LADEN SUBSTANTIALLY WITH PROPENE AND A GAS STREAM D2 COMPRISING PROPANE, METHANE, ETHANE, ETHENE, CARBON MONOXIDE, CARBON DIOXIDE AND HYDROGEN; E) IF APPROPRIATE, THE ABSORBENT STREAM D1 IS DECOMPRESSED TO A LOWER PRESSURE IN A FIRST DESORPTION ZONE TO OBTAIN AN ABSORBENT STREAM EL LADEN SUBSTANTIALLY WITH PROPENE AND A GAS STREAM E2 COMPRISING PROPENE, AND GAS STREAM E2 IS RECYCLED INTO THE FIRST ABSORPTION ZONE, F) FROM THE ABSORBENT STREAM DL OR EL LADEN SUBSTANTIALLY WITH PROPENE, IN AT LEAST ONE SECOND DESORPTION ZONE, BY DECOMPRESSION, HEATING AND/OR STRIPPING THE ABSORBENT STREAM DL OR EL, A GAS STREAM FL COMPRISING PROPENE IS RELEASED AND THE SELECTIVE ABSORBENT IS RECOVERED.

公开(公告)号：MY136413A

公开(公告)日：2008-09-30

申请号：MYPI20042577

申请日：2004-06-29

Applicant: BASF AG

Inventor： DUDA MARK DR ,  MACHHAMMER OTTO DR ,  WECK ALEXANDER

IPC: C07C51/215

Abstract: A PROCESS FOR PREPARING MALEIC ANHYDRIDE BY OXIDIZING n-BUTANE IN THE GAS PHASE UNDER HETEROGENEOUS CATALYSIS WITH OXYGEN-CONTAINING GASES OVER A VANADIUM-, PHOSPHORUS-AND OXYGEN-CONTAINING CATALYST IN A REACTOR UNIT AT A TEMPERATURE IN THE RANGE FROM 350 TO 500°C, REMOVING THE MALEIC ANHYDRIDE FORMED TO FORM A GAS STREAM WHICH COMPRISES UNCONVERTED n-BUTANE AND WATER AND RECYCLING AT LEAST A PORTION OF THE UNCONVERTED n-BUTANE TO THE REACTOR UNIT, BY FEEDING TO THE REACTOR UNIT AN INLET STREAM HAVING AN n-BUTANE CONCENTRATION OF FROM 0.5 TO 1.5BY VOLUME AND AN OXYGEN CONCENTRATION OF FROM 5 TO 21BY VOLUME, ESTABLISHING A PRESSURE AT THE INLET TO THE REACTOR UNIT OF FORM 0.4 TO 2 MPa ABS, AND CONVERTING FORM 40 TO 100OF THE n-BUTANE FROM THE INLET STREAM PER REACTOR PASS.

公开(公告)号：DE59602040D1

公开(公告)日：1999-07-08

申请号：DE59602040

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: C07C27/00 ,  C07C27/14 ,  C07C45/35 ,  C07C47/22 ,  C07C51/25 ,  C07C57/04 ,  C07C57/05 ,  C07C57/055

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).

公开(公告)号：DE19740252A1

公开(公告)日：1999-03-18

申请号：DE19740252

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

IPC: C07C51/43 ,  C07C51/44 ,  C07C57/07 ,  C07C57/05

Abstract: Acrylic and methacrylic acid can be synthesized by catalytic gas phase oxidation of 3-4C alkanes, alkenes, alcohols and/or aldehydes. This process for the production of acrylic acid or methacrylic acid comprises: (A) production of a gaseous product mixture comprising the reaction mixture arising from the (B) condensation of the gaseous product mixture (C) crystallization of acrylic acid or methacrylic acid from the resulting solution. (D) separation of the crystals from the mother liquor and (E) recycling of at least a portion of the mother liquor from (D) to (B).

公开(公告)号：ES2116795T3

公开(公告)日：1998-07-16

申请号：ES96103128

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.

公开(公告)号：DE19508532A1

公开(公告)日：1996-09-12

申请号：DE19508532

申请日：1995-03-10

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 ,  C07C57/05 ,  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).

公开(公告)号：DE4341068A1

公开(公告)日：1995-06-08

申请号：DE4341068

申请日：1993-12-02

Applicant: BASF AG

Inventor： HEDTMANN-REIN CAROLA DR ,  SCHAECH HANS JOERG ,  MACHHAMMER OTTO DR ,  SAUER FRIEDRICH

IPC: C08G65/46 ,  C08G65/38

Abstract: A process is claimed for removing the catalyst in the prodn. of high-mol. wt. polyphenylene ether (PPE) from mono-phenols with alkyl or aryl substits. in both o-positions or also in one m-position but not in the p-position, by oxidative coupling with oxygen at 10-60 deg.C in the presence of a Cu salt/amine catalyst and a 6-10C aromatic hydrocarbon solvent. The catalyst is removed by prestabilisation with aq. NaHSO3 soln. as reducing agent, followed by 2-stage counter-current extn. with aq. (NH4)2SO4 soln.

公开(公告)号：MY144309A

公开(公告)日：2011-08-29

申请号：MYPI20041246

申请日：2004-04-05

Applicant: BASF AG

Inventor： SCHINDLER GOTZ-PETER DR ,  MACHHAMMER OTTO DR ,  MUELLER-ENGEL KLAUS JOACHIM DR ,  HECHLER CLAUS DR ,  PETZOLDT JOCHEN DR ,  ADAMI CHRISTOPH DR ,  HARTH KLAUS DR

IPC: C07C253/08 ,  B01J23/62 ,  B01J23/63 ,  C07C45/33 ,  C07C45/34 ,  C07C45/35 ,  C07C51/25 ,  C07C253/26 ,  C07C255/08

Abstract: A PROCESS FOR PREPARING AT LEAST ONE PARTIAL OXIDATION AND/OR AMMOXIDATION PRODUCT OF A HYDROCARBON BY PARTIALLY DEHYDROGENATING AT LEAST ONE SATURATED HYDROCARBON H UNDER HETEROGENEOUS CATALYSIS AND USING THE RESULTING PRODUCT GAS MIXTURE A, WHICH COMPRISES THE PARTIALLY DEHYDROGENATED HYDROCARBON H, AS SUCH OR IN MODIFIED FORM FOR HETEROGENEOUSLY CATALYZED PARTIAL OXIDATION AND/OR AMMOXIDATION OF THE PARTIALLY DEHYDROGENATED HYDROCARBON PRESENT IN THE PRODUCT GAS MIXTURE A, SAID PROCESS INCLUDING AT LEAST ONE MECHANICAL SEPARATING OPERATION INSERTED BETWEEN THE PRODUCT GAS MIXTURE A AND THE HETEROGENEOUSLY CATALYZED PARTIAL OXIDATION AND/OR AMMOXIDATION.

公开(公告)号：MY138824A

公开(公告)日：2009-07-31

申请号：MYPI20022467

申请日：2002-06-28

Applicant: BASF AG

Inventor： PROLL THEO DR ,  MACHHAMMER OTTO DR ,  SCHINDLER GOTZ-PETER DR ,  MUELLER-ENGEL KLAUS JOACHIM DR

IPC: C07C45/34 ,  C07D301/06 ,  B01J27/199 ,  C07B61/00 ,  C07C45/33 ,  C07C45/35 ,  C07C47/22 ,  C07C51/235 ,  C07C57/055 ,  C07C253/26 ,  C07C255/08

Abstract: PARTIAL OXIDATION PRODUCTS AND/OR AMMOXIDATION PRODUCTS OF AN OLEFINIC HYDROCARBON AI (17) ARE PREPARED BY A PROCESS IN WHICH SAID OLEFINIC HYDROCARBON IS PRODUCED DURING NORMAL OPERATION BY PARTIAL DEHYDROGENATION AND/OR OXYDEHYDROGENATION OF HYDROCARBON A AND FED IN FROM ANOTHER SOURCE DURING PARTIAL OR COMPLETE NONOPERATION OF THE DEHYDROGENATION AND/OR OXYDEHYDROGENATION.