公开(公告)号：DE10106664A1

公开(公告)日：2002-08-14

申请号：DE10106664

申请日：2001-02-12

Applicant: BASF AG

Inventor： DISTELDORF WALTER ,  PETERS JARREN ,  MORSBACH BERND ,  KUMMER MATTHIAS ,  RUEHL THOMAS

IPC: B01D3/14 ,  C07D307/89 ,  C07C51/44

Abstract: The invention relates to a method for the production of phthalic anhydride to a specification, using a distillative purification of crude phthalic anhydride, by introduction of crude phthalic anhydride into a distillation column, operating at reduced pressure, withdrawal of the low-boiling fraction from the head, or near the head of the column and withdrawal of the phthalic anhydride, which meets the specification, from a side-tap on the column, whilst operating the column at a reflux ratio x, with 1:1.7

公开(公告)号：DE19856592A1

公开(公告)日：2000-06-15

申请号：DE19856592

申请日：1998-12-08

Applicant: BASF AG

Inventor： RAHN RALF-THOMAS ,  RUST HARALD ,  RUEHL THOMAS ,  HENKELMANN JOCHEM ,  STUTZ SUSANNE

IPC: C07C29/16 ,  C07C29/80 ,  C07C29/82 ,  C07C33/025 ,  C07C33/042 ,  C07C33/048 ,  C07C29/42

Abstract: Distillative recovery of alpha -ethynyl-carbinols (I) from the liquid reaction mixture from the addition of acetylene to alpha , beta -unsaturated carbonyl compounds comprises continuous distillation, in which the feed is passed to the middle of the distillation column, most of the water is distilled off at the top as azeotrope with the solvent and (I) is recovered below the feed port.

公开(公告)号：DE19816741A1

公开(公告)日：1999-10-21

申请号：DE19816741

申请日：1998-04-15

Applicant: BASF AG

Inventor： DAMES BURKHARDT ,  HAEUSLING LUKAS ,  PAULUS WOLFGANG ,  RUEHL THOMAS ,  WEIGUNY SABINE

IPC: C08F265/02 ,  C08K5/17 ,  C09D135/00 ,  C09D151/00 ,  C09J151/00 ,  C08F8/30 ,  C08J3/24 ,  C09D133/00 ,  C09J133/00 ,  C14C11/00

Abstract: A self-crosslinking aqueous preparation contains an aqueous dispersion of an anhydride group (AH)-containing copolymer (P); and a crosslinker (A) with a primary and/or secondary amine group (AM). A self-crosslinking aqueous preparation contains (i) an aqueous dispersion of an anhydride group (AH)-containing copolymer (P) obtained by radical aqueous emulsion copolymerisation of ethylenically-unsaturated monomers (M) comprising at least a monomer (M1) which is an anhydride of an unsaturated 3-8C carboxylic acid and a comonomer (M2); and (ii) a crosslinker (A) with a primary and/or secondary amine group (AM), this being (A1) a compound with at least 2 AMs; (A2) a compound with at least 1 AM and a siloxane group; (A3) an aminoalcohol; or (A4) a polymer with AMs. An Independent claim is also included for preparation of the composition by mixing an aqueous dispersion of copolymer (P) with (A), optionally in dissolved or dispersed form.

公开(公告)号：DE59504642D1

公开(公告)日：1999-02-04

申请号：DE59504642

申请日：1995-07-18

Applicant: BASF AG

Inventor： HEIDER MARC ,  HENKELMANN JOCHEM ,  KARCHER MICHAEL ,  RUEHL THOMAS

IPC: C07B61/00 ,  C07C269/04 ,  C07C271/08 ,  C07C271/10 ,  C07C271/12 ,  C07C271/20 ,  C07D295/20 ,  C07D295/205 ,  C07D521/00

Abstract: PCT No. PCT/EP95/02805 Sec. 371 Date Jan. 21, 1997 Sec. 102(e) Date Jan. 21, 1997 PCT Filed Jul. 18, 1995 PCT Pub. No. WO93/02498 PCT Pub. Date Feb. 1, 1996Vinyl carbamate compounds are prepared by reacting appropriate secondary amines with carbon dioxide and acetylenically unsaturated compounds in the presence of a compound of a metal from the platinum group, in particular a ruthenium compound, with either one of the two process steps (a) and (b) or, preferably, both being carried out: (a) the acetylene compound is reinjected during the reaction; (b) the reaction is carried out in the presence of a tertiary amine.

公开(公告)号：DE59502578D1

公开(公告)日：1998-07-23

申请号：DE59502578

申请日：1995-10-24

Applicant: BASF AG

Inventor： HEIDER MARC ,  RUEHL THOMAS ,  HELFERT HERBERT ,  SCHMIDT-RADDE MARTIN ,  HENKELMANN JOCHEM

IPC: B01J23/02 ,  B01J31/02 ,  B01J31/12 ,  C07B61/00 ,  C07C41/06 ,  C07C41/08 ,  C07C43/178

Abstract: The prepn. of monovinyl ethers of formula (I), comprises reacting a diol of formula (II) with C2H2 in the presence of a base. The reaction is carried out at 150-250 degrees C and an C2H2 partial pressure of 5-25 bar until the diol conversion is 40-80%, then the reaction is stopped and (I) is isolated. In (I) and (II): A = a chemical bond, -CH2- or -CH2CH2-; R , R = H, (cyclo)alkyl or aryl; or R R = a 3-5C alkylene bridge.

公开(公告)号：HUT63402A

公开(公告)日：1993-08-30

申请号：HU9203947

申请日：1992-12-11

Applicant: BASF AG

Inventor： HENKELMANN JOCHEM ,  RUEHL THOMAS ,  ZIMMERMANN HORST ,  GOETZ NORBERT ,  SPIEGLER WOLFGANG ,  KUEKENHOEHNER THOMAS

IPC: B01J23/656 ,  B01J23/62 ,  B01J23/72 ,  B01J23/86 ,  B01J23/88 ,  C07B61/00 ,  C07D309/06

Abstract: Method for the preparation of 4-hydroxymethyltetrahydropyrans of the general formula I in which R , R , R and R denote hydrogen, C1- to C12-alkyl, C3- to C8-cycloalkyl, aryl or C7- to C20-aralkyl, by reacting tetrahydropyrancarboxylic esters of the general formula II in which R1, R2, R3 and R4 have the abovementioned meanings and R5 denotes hydrogen or C1- to C12-alkyl, at temperatures of 50 to 400 DEG C and pressures of 1 to 400 bar in the presence of hydrogen and hydrogenation catalysts.