公开(公告)号：DE10037786C1

公开(公告)日：2002-02-14

申请号：DE10037786

申请日：2000-08-03

Applicant: BASF AG

Inventor： WEIGL HAGEN ,  EBEL KLAUS ,  SIMON JOACHIM

IPC: C07D309/20 ,  B01J21/04 ,  C07B61/00 ,  C07D309/18

Abstract: The invention relates to a method for producing 3,4-dihydro-2H-pyran by reacting tetrahydrofurfuryl alcohol on solid oxidic catalysts at temperatures ranging from 150 to 400 DEG C and at pressures ranging from 0.001 to 50 bar. The inventive method is characterized in that the reaction is carried out in the gas phase inside a multi-tube reactor.

公开(公告)号：DE10026134A1

公开(公告)日：2001-11-29

申请号：DE10026134

申请日：2000-05-26

Applicant: BASF AG

Inventor： WEIGL HAGEN ,  EBEL KLAUS ,  SCHULZ GERHARD

IPC: B01D9/02 ,  C07C51/285 ,  C07C51/43 ,  C07C51/47 ,  C07C59/105 ,  C07C59/01 ,  C07C59/10

Abstract: The invention relates to a method for isolating poly- or monomethyl alkanoic acids of the general formula (I), wherein R is the same or different and represents a substituted or unsubstituted hydrocarbon or a methylol group that is produced from the corresponding polymethylol alkanals or monomethylol alkanals of the general formula (II), wherein R has the meaning indicated above, by oxidation with an aqueous solution of hydrogen peroxide. The method further comprises the following steps: a) crystallization, followed by solid/liquid separation (B), thereby obtaining the acid as the first crystallized product (2a) and a mother liquor (3), b) producing in the mother liquor (3) another crystallized product (2b), and removing the resulting mother liquor (3) in another solid/liquid separation (C) from the crystallized product (2b), and c) disposing of the resulting acid-depleted mother liquor (3).

公开(公告)号：AT364587T

公开(公告)日：2007-07-15

申请号：AT01993593

申请日：2001-11-02

Applicant: BASF AG

Inventor： DERNBACH MATTHIAS ,  KOCH MICHAEL ,  SCHULZ GERHARD ,  WEIGL HAGEN ,  MAAS STEFFEN

IPC: C07C29/141 ,  C07B61/00 ,  C07C31/20 ,  C07C31/22 ,  C07C31/24 ,  C07C45/78 ,  C07C47/19

Abstract: In a process for the catalytic hydrogenation of a polymethylolalkanal or a monomethylolalkanal of the formula (I) where R may be identical or different and are each a substituted or unsubstituted aliphatic hydrocarbon having from 1 to 22 carbon atoms, an aryl or arylalkyl group having from 6 to 22 carbon atoms or a methylol group, in the presence of a copper-containing catalyst, the hydrogenation feed comprising the polymethylolalkanal or monomethylolalkanal has a total content of metal ions of groups 3 to 14 of the Periodic Table of the Element of up to 5 ppm.

公开(公告)号：DE50200760D1

公开(公告)日：2004-09-09

申请号：DE50200760

申请日：2002-03-06

Applicant: BASF AG

Inventor： WEIGL HAGEN ,  EBEL KLAUS ,  HUBER SYLVIA ,  KUSCHE ANDREAS ,  ELLER KARSTEN ,  HESSE MICHAEL ,  HOEHN ARTHUR

IPC: B01J23/89 ,  B01J27/045 ,  B01J37/02 ,  B01J37/20 ,  C07B61/00 ,  C07C31/20 ,  C07D307/28 ,  C07D309/18 ,  C07D319/12

Abstract: A method for producing unsaturated cyclic ethers of general formula (I) wherein Z represents (CHR )q- or (CHR )q-O-, q 0, 1, 2 or 3 and R , R , R , R represent hydrogen or C1-C4-alkyl, by reacting dioles of general formula (II), wherein Z, R , R and R have the above-mentioned meanings, in a liquid phase at temperatures of 150-300° C. in the presence of a support catalyst which is not activated prior to use by reduction and which contains cobalt and is doped with sulphur, containing cobalt, and an earth metal which is deposited by sol impregnation and is selected from the group containing platinum, palladium, rhodium, iridium, ruthenium, osmium, rhenium or mixtures thereof, on an inert support, characterized in that water is added.

公开(公告)号：AT272444T

公开(公告)日：2004-08-15

申请号：AT02722181

申请日：2002-03-06

Applicant: BASF AG

Inventor： WEIGL HAGEN ,  EBEL KLAUS ,  HUBER SYLVIA ,  KUSCHE ANDREAS ,  ELLER KARSTEN ,  HESSE MICHAEL ,  HOEHN ARTHUR

IPC: B01J23/89 ,  B01J27/045 ,  B01J37/02 ,  B01J37/20 ,  C07B61/00 ,  C07C31/20 ,  C07D307/28 ,  C07D309/18 ,  C07D319/12

Abstract: A method for producing unsaturated cyclic ethers of general formula (I) wherein Z represents (CHR )q- or (CHR )q-O-, q 0, 1, 2 or 3 and R , R , R , R represent hydrogen or C1-C4-alkyl, by reacting dioles of general formula (II), wherein Z, R , R and R have the above-mentioned meanings, in a liquid phase at temperatures of 150-300° C. in the presence of a support catalyst which is not activated prior to use by reduction and which contains cobalt and is doped with sulphur, containing cobalt, and an earth metal which is deposited by sol impregnation and is selected from the group containing platinum, palladium, rhodium, iridium, ruthenium, osmium, rhenium or mixtures thereof, on an inert support, characterized in that water is added.

公开(公告)号：CA2492553A1

公开(公告)日：2004-01-29

申请号：CA2492553

申请日：2003-07-10

Applicant: BASF AG

Inventor： WEIGL HAGEN ,  WARTINI ALEXANDER ,  EBEL KLAUS ,  HIEBER GISELA

IPC: C07B61/00 ,  C07C45/48 ,  C07C49/385 ,  C07C49/587

Abstract: The invention relates to a method for producing macrocyclic ketones of gener al formula (I) by direct cyclisation of compounds of general formula (II) in th e gas phase on a heterogeneous catalyst. In general formula (I), X represents a monounsaturated or polyunsaturated or saturated C10-C17 alkyl radical which can be optionally substituted by a C1-C6 alkyl radical, and in general formu la (II), R1, R2 can respectively be the same or different and represent hydroge n or C1-C6 alkyl, and X has the above-mentioned designation.

公开(公告)号：DE10111065A1

公开(公告)日：2002-09-19

申请号：DE10111065

申请日：2001-03-08

Applicant: BASF AG

Inventor： WEIGL HAGEN ,  EBEL KLAUS ,  HUBER SYLVIA ,  KUSCHE ANDREAS ,  ELLER KARSTEN ,  HESSE MICHAEL ,  HOEHN ARTHUR

IPC: B01J23/89 ,  B01J27/045 ,  B01J37/02 ,  B01J37/20 ,  C07B61/00 ,  C07C31/20 ,  C07D307/28 ,  C07D309/18 ,  C07D319/12 ,  C07D309/16 ,  C07D307/26 ,  C07D313/00 ,  C07D315/00 ,  C07D319/00 ,  C07D321/00

Abstract: A method for producing unsaturated cyclic ethers of general formula (I) wherein Z represents (CHR )q- or (CHR )q-0-, q 0, 1, 2 or 3 and R , R , R , R represent hydrogen or C1- C4-alkyl, by reacting dioles of general formula (II), wherein Z, R , R and R have the above-mentioned meanings, in a liquid phase at temperatures of 150 -300 DEG C in the presence of a support catalyst which is not activated prior to use by reduction and which contains cobalt and is doped with sulphur, containing cobalt, and an earth metal which is deposited by sol impregnation and is selected from the group containing platinum, palladium, rhodium, iridium, ruthenium, osmium, rhenium or mixtures thereof, on an inert support, characterized in that water is added.

公开(公告)号：DE10026141A1

公开(公告)日：2001-11-29

申请号：DE10026141

申请日：2000-05-26

Applicant: BASF AG

Inventor： WEIGL HAGEN ,  EBEL KLAUS ,  HIEBER GISELA ,  SCHULZ GERHARD ,  GROENING CARSTEN

IPC: C07C51/285 ,  C07C51/43 ,  C07C59/01 ,  C07C59/10

Abstract: The invention relates to a method for producing poly or monomethylol alkanoic acids of general formula (I), wherein R can be the same or different and means a substituted or unsubstituted aliphatic hydrocarbon or a methylol group, from the corresponding poly or monomethylol alkanals of general formula (II), R having the meaning given above, by oxidation with hydrogen peroxide. A differentiation is made between a starting phase and an end phase of the reaction, the reaction temperature selected during the starting phase being lower than that selected during the end phase and being at least >/= 40 DEG C to 85 DEG C, preferably 60 to 80 DEG C, especially preferably 65-75 DEG C, and the temperature during the end phase being > 85 DEG C-110 DEG C, preferably up to 105 DEG C. The method is used especially for producing dimethylol alkanoic acids from the corresponding dimethylol alkanals, especially for producing dimethylol butanal or dimethylol propanal.