公开(公告)号：DE2145805A1

公开(公告)日：1973-03-22

申请号：DE2145805

申请日：1971-09-14

Applicant: BASF AG

Inventor： FUCHS HUGO DR ,  LAUTENBACH DIETER DR ,  WUNSCH GERD DR

IPC: C02F1/26 ,  C07D201/16 ,  B01D53/14

Abstract: In lactam prodn (by turbulent bed catalytic rearrangement of cycloalkanone oxime) the purification of residual gases and water reducing BOD of waste by condensing the gaseous mixture from the reaction zone in a baffled column, while simultaneously washing with a counter-current of toluene, cyclohexane or xylene introduced at the head of the column.

公开(公告)号：DE2209257A1

公开(公告)日：1973-09-06

申请号：DE2209257

申请日：1972-02-26

Applicant: BASF AG

Inventor： LAUTENBACH DIETER DR ,  FUCHS HUGO DR ,  KAHR KURT DR ,  WERNER DIETMAR DR ,  WUNSCH GERD DR

IPC: C07D201/04 ,  C07D201/16 ,  C07D41/06

Abstract: Method for purifying lactams by passing their vapours at temps. higher than their condensation point over or through activated carbon. Residence time is pref. 1-5 (esp. 2-3) sec. For epsilon-caprolactam, temp. used is 180-300 degrees C. Inert gas is opt. present. The carbon can be regenerated by solvent-extraction or superheated steam.

公开(公告)号：DE19734906A1

公开(公告)日：1999-02-18

申请号：DE19734906

申请日：1997-08-12

Applicant: BASF AG

Inventor： KAHMEN MARTIN AUS DEM DR ,  GROSCH GEORG HEINRICH DR ,  OFTRING ALFRED DR ,  LAUTENBACH DIETER DR

IPC: A01N25/30 ,  A61K8/39 ,  A61Q19/00 ,  B01J23/00 ,  C07C67/26 ,  C07C69/22 ,  C07C69/24 ,  C07C69/28 ,  C07C69/30 ,  C07C69/52 ,  C07C69/66 ,  C09K8/22 ,  C09K23/00 ,  C09K23/42 ,  C11D1/52 ,  C11D1/72 ,  C11D1/74 ,  B01F17/42 ,  A61K7/48 ,  C09K7/02

Abstract: Preparation of alkoxylation products of formula (R-COO-CHR -CHR z)mY (III) comprises reaction of fatty acid compounds of formula (R-CO)mY (IV) with alkyleneoxides of formula (V), where R = a 3-29C aliphatic group containing 1-3 C=C double bonds and which may be interrupted by 1-3 non-adjacent O atoms; R , R = H, methyl or ethyl; m = 1-3; when m = 1, Y = OR or NR R ; when m = 2, Y = OR O; when m = 3, Y = O-CH2-CH(-O)-CH2-O (sic); R -R = 1-18C alkyl; R = 1-18C alkyl or 2-18C alkylene; z has an average value of 1-100. The reaction takes place in the presence of a catalyst made from polycation-based mixed hydroxides of formula M(II)1-xM(III)x(OH)2Ax/n.mL (I) or LiAl2(OH)6Al/n.mL (II), where M(II) = one or more divalent metals; M(III) = one or more trivalent metals; A = one or more inorganic anions; L = an organic solvent or water; n = the valency of A, or the average valency, if different anions are used; x = 0.1-0.5; and m = 0-10. The mixed hydroxides are modified by additives selected from the following: (a) aromatic or heteroaromatic mono- or polycarboxylic acids or their salts; (b) aliphatic mono- or polycarboxylic acids or their salts with an isocyclic or heterocyclic ring in the side chain; (c) semi esters of dicarboxylic acids or their salts; (d) carboxylic acid anhydrides; (e) aliphatic or aromatic sulphonic acids or their salts; (f) 8-18C alkylsulphates; (g) long chain paraffins; (h) polyetherols or polyetherpolyols; (i) alcohols or phenols; or (k) aliphatic 4-44C dicarboxylic acids or aliphatic 7-34C monocarboxylic acids. The additives may be moulded in solid form with the catalyst, optionally using binders. Also claimed are the products (III).

公开(公告)号：DE2059703A1

公开(公告)日：1972-06-08

申请号：DE2059703

申请日：1970-12-04

Applicant: BASF AG

Inventor： FUCHS HUGO DR ,  KAHR KURT DR ,  LAUTENBACH DIETER DR ,  WUNSCH GERD DR

IPC: C07D201/04

Abstract: In a process for the continuous prodn. of lactams by rearrangement of cycloalkanone oximes at 210-450 degrees C on carrier catalysts in a fluidised bed, carry-over of catalyst and other material from the bed into other parts of the appts. and into the crude lactam is reduced by introducing hydroxy cpds. or orthoformic acid esters, or their mixtures with steam, into the reaction space above the fluidised bed in an amount of 0.01-1 kg/kg of cylcoalkanone oxime.