公开(公告)号：DE19637428A1

公开(公告)日：1998-03-19

申请号：DE19637428

申请日：1996-09-13

Applicant: BASF AG

Inventor： OFTRING ALFRED DR ,  OTT CHRISTIAN DR ,  POTTHOFF-KARL BIRGIT DR

IPC: C10M173/02 ,  C11D3/00 ,  C11D3/20 ,  C11D3/386 ,  C11D3/39 ,  C11D3/395 ,  C11D11/00 ,  C23G1/19 ,  C07C55/22 ,  B05D3/00 ,  C07B63/04 ,  C07C51/08 ,  C07C51/41 ,  C10M129/34 ,  C11D3/16 ,  C23F11/10

Abstract: Use is claimed of hexane-1,3,6-tricarboxylic acid (I) (or its ammonium or alkali metal salts) as a complex-former, (co) builder or incrustation inhibitor, the (I) or salt preferably being obtained by hydrolysis of the tricyano by-products obtained in either (a) the Sohio process for acrylonitrile production or (b) the electrohydrodimerisation of acrylonitrile.

公开(公告)号：DE19650107A1

公开(公告)日：1998-06-04

申请号：DE19650107

申请日：1996-12-03

Applicant: BASF AG

Inventor： OFTRING ALFRED DR ,  OETTER GUENTER DR ,  BAUR RICHARD DR ,  BORZYK OLIVER DR ,  BURKHART BERND DR ,  OTT CHRISTIAN DR ,  KAHMEN MARTIN AUS DEM DR

IPC: C07C231/02 ,  C07C231/24 ,  C07C233/05 ,  C07C233/09 ,  C07C233/18 ,  C07C233/20 ,  C11D19/00

Abstract: Separation of glycerol (I) from a reaction mixture containing (I) and fatty acid amides (II) comprises separation into an aqueous phase containing (I) and an organic phase containing (II) by adding aqueous acid solution to pH 1-7 and separating the aqueous phase. Also claimed is a method of preparing (II) by reacting fatty acid glycerides (III) with amines, in which the reaction mixture is treated in this way.

公开(公告)号：DE19800437A1

公开(公告)日：1999-07-15

申请号：DE19800437

申请日：1998-01-08

Applicant: BASF AG

Inventor： OFTRING ALFRED DR ,  OTT CHRISTIAN DR ,  POTTHOFF-KARL BIRGIT DR

IPC: C07C227/18 ,  C07C229/24 ,  C07C229/26 ,  C07C303/24 ,  C07C305/04 ,  C07C305/06

Abstract: The invention relates to a method for producing (S,S)-N,N'-ethylenediamine disuccinic acid or analogous compounds or salts thereof by reacting L-asparaginic acid, L-glutaminic acid or L-cysteic acid with 1,2-bissulfooxyethane, 1,3,2-dioxathiolane-2,2-dioxide or mixtures thereof or 1,3-bissulfooxy-2-hydroxypropane in the presence of a base and optional successive acidification with an acid. In addition, the invention relates to a method for producing (S,S)-N,N'-ethylenediamine disuccinic acid or analogous compounds or salts thereof by reacting N-(2-sulfooxyethyl)-L-asparaginic acid or salts thereof with L-asparaginic acid or corresponding compounds based on L-glutaminic acid, L-cysteic acid and/or 1,3-bissulfooxy-2-hydroxypropane in the presence of a base and optional successive acidification with an acid.

公开(公告)号：DE19631134A1

公开(公告)日：1998-02-05

申请号：DE19631134

申请日：1996-08-01

Applicant: BASF AG

Inventor： OFTRING ALFRED DR ,  KAHMEN MARTIN AUS DEM DR ,  OTT CHRISTIAN DR ,  BAUR RICHARD DR

IPC: D06L1/12 ,  C05G3/00 ,  C11D1/08 ,  C11D1/10 ,  C11D3/20 ,  C11D3/60 ,  C11D17/08 ,  D06M13/192 ,  D21H17/15 ,  C11D1/83

Abstract: The use is disclosed of a compound having the general formula (I), as well as its alkali salts, as scaling inhibitors and/or (co)-builders. In the formula (I), R" stands for hydrogen and R and R' independently represent branched or non-branched aliphatic C4-28 radicals which can contain one or several double C-C and/or triple C-C bonds. Radicals R and R' may be interrupted by one or more non-adjacent oxygen atoms, NH groups and/or N-C1-4-alkyl groups, and may be substituted by one or more hydroxyl groups, primary amino groups and/or secondary C1-4-alkylamino groups; or radicals R and R" are hydrogen atoms and radical R' has the above-mentioned meaning; or R" has the meaning given above for R' and R and R' are hydrogen atoms.

公开(公告)号：DE19743015A1

公开(公告)日：1999-04-01

申请号：DE19743015

申请日：1997-09-29

Applicant: BASF AG

Inventor： OFTRING ALFRED DR ,  BOGENSTAETTER THOMAS DR ,  OTT CHRISTIAN DR

IPC: C07C27/02 ,  C07C29/09 ,  C07C29/128 ,  C07C29/48 ,  C07C31/20 ,  C07C67/05 ,  C07C69/08 ,  C07C31/18 ,  C07C29/74 ,  C07C69/04

Abstract: The invention relates to a method for producing vicinal diols or polyols from an organic reaction mixture containing formic acid esters of vicinal diols or polyols. The reaction mixture is treated with water without adding bases and thermally treated afterwards, whereby the formic acid esters are hydrolyzed, the aqueous formic acid is separated and the vicinal diols or polyols remain.

公开(公告)号：DE19650151A1

公开(公告)日：1998-06-04

申请号：DE19650151

申请日：1996-12-03

Applicant: BASF AG

Inventor： OFTRING ALFRED DR ,  OETTER GUENTER DR ,  BAUR RICHARD DR ,  BORZYK OLIVER DR ,  BURKHART BERND DR ,  OTT CHRISTIAN DR ,  KAHMEN MARTIN AUS DEM DR

IPC: C07C231/14 ,  C07C233/18 ,  C08G65/26 ,  C09K23/42 ,  C11D1/52 ,  C11D1/72 ,  A61K7/00 ,  A61K7/50 ,  A61K7/075 ,  B01F17/42

Abstract: Production of alkoxylated amides of formula R1CONR2CHR3CHR4O(CHR5CHR6O)nH (I) comprises: (a) reacting a glyceride of a fatty acid of formula R1COOH (II) with an amine of formula NHR2R7(III) to give an amide of formula R1CONR2R7 (IV) and glycerol; (b) adding aqueous acid solution to the reaction mixture to pH 1-7 and separating the aqueous glycerol-containing phase from the organic phase containing amide (IV); and (c) etherifying (IV) with ethylene oxide (EO), propylene oxide and/or butylene oxide to give (I). R1 = 5-25C aliphatic residue containing 0-5 double bonds; R2 = H or 1-20C alkyl optionally interrupted by 1-5 O; R3-R6 = H; or one of R3 and R4 and/or one of R5 and R6 = Me or Et; R7 = H or CHR3CHR4OH; n = 1-100; provided that R2 and R7 are not both H. (I) are new when R2 is Me or Et. Also claimed are (1) compounds (I) obtained as above; and (2) washing, cleaning and body care agents containing 0.1-50 wt.% (I).

公开(公告)号：DE19526501A1

公开(公告)日：1997-01-23

申请号：DE19526501

申请日：1995-07-20

Applicant: BASF AG

Inventor： OFTRING ALFRED DR ,  KAHMEN MARTIN AUS DEM DR ,  EHLE BEATE DR ,  BAUR RICHARD DR ,  KLINGELHOEFER PAUL DR ,  SCHNEIDER JUERGEN DR ,  RULAND ALFRED DR ,  TRAPP HORST DR ,  OTT CHRISTIAN DR

IPC: C07C67/31 ,  C07C69/708 ,  C09K23/00 ,  D21H17/06 ,  D21H21/12 ,  C07D303/02 ,  B01D19/04 ,  C08G65/32 ,  C11D3/20 ,  C11D3/37 ,  C09K7/02 ,  C14C1/00 ,  C23G5/00

Abstract: Hydroxy mixed ethers are claimed which are obtd. by ring-opening reaction of unsatd. fatty acid ester epoxides (I) with polyglycol ethers of formula R1-O-(CH2.CHR2.O)n-H (II) in presence of Lewis acids with exclusion of protons (where, R1 = H, 1-30C alkyl or 8-30C alkenyl; R2 = H, Me or Et; and n = 1-50 (R1 not = H) or 2-50 (R1 = H)).