公开(公告)号：DE4019781A1

公开(公告)日：1992-01-02

申请号：DE4019781

申请日：1990-06-21

Applicant: BASF AG

Inventor： NESTLER GERHARD DR ,  RUCKH PETER DR ,  LAZARUS MANFRED

IPC: C07C67/08 ,  C07C67/58 ,  C07C69/54

Abstract: Method for the production of monoethylenically unsaturated carboxylic esters, in which, after the esterification is complete, a) the product mixture is extracted in a first extraction stage at a temperature of 10 to 40 DEG C with 5 to 30% by volume, based on the product mixture, of water and b) in a second extraction stage at a temperature of 10 to 30 DEG C the aqueous phase from the first extraction stage is extracted with one to four times the amount by weight of alkanol to be esterified.

公开(公告)号：DE2338111A1

公开(公告)日：1975-02-20

申请号：DE2338111

申请日：1973-07-27

Applicant: BASF AG

Inventor： DUEMBGEN GERD DR ,  ENGELBACH HEINZ DR ,  KRABETZ RICHARD DR ,  LEBERT ULRICH DR ,  RUCKH PETER DR ,  THIESSEN FRITZ DR ,  WILLERSINN CARL-HEINZ DR

IPC: B01J23/88 ,  B01J23/887 ,  B01J23/888 ,  B01J23/89 ,  B01J27/186 ,  B01J27/192 ,  B01J27/195 ,  C07C45/34 ,  C07C45/35 ,  C07C47/20 ,  C07C47/22 ,  C07C121/30

Abstract: Catalytic oxidn. or ammonoxidation of alpha-olefins to the corresp. alpha, beta-unsatd. aldehydes or nitriles in the vapour phase at 280-450 degrees C, opt. in the presence of steamd and/or NH3 using oxygen and inert gas in the presence of a catalyst of formula:also contains ZnO oxide, pref. as Znh in the above formula where Me1 is In, La, Ga, Al or a mixt. of these; Me2 is Fe and/or Cu; Me3 is Ni and/or Co; Me4 is >=1 of P, B, As, Cr, V and W; Me5 is >=1 of Ta, Sm, Nb, Ag, Pb, Mn, Re, Sn, Ge, Mg, Ca and Ba; a is 0.1-6, pref. 0.5-3; b is 0.005-3, pref. 0.01-1; c is 0.1-8, pref. 0.5-3; d is 0-16, pref. 2-8; e is 0-6 pref. 0.1-3; g is 36-102, pref. 38-95; h is pref. 0.5-6, partic. 2-4; d+h is pref. 4-12, partic, 6-10. The ZnO gives increased selectively.

公开(公告)号：ES2066274T3

公开(公告)日：1995-03-01

申请号：ES91109389

申请日：1991-06-07

Applicant: BASF AG

Inventor： NESTLER GERHARD DR ,  RUCKH PETER DR ,  LAZARUS MANFRED

IPC: C07C67/58 ,  C07C69/54 ,  C07C67/08

Abstract: Method for the production of monoethylenically unsaturated carboxylic esters, in which, after the esterification is complete, a) the product mixture is extracted in a first extraction stage at a temperature of 10 to 40 DEG C with 5 to 30% by volume, based on the product mixture, of water and b) in a second extraction stage at a temperature of 10 to 30 DEG C the aqueous phase from the first extraction stage is extracted with one to four times the amount by weight of alkanol to be esterified.

公开(公告)号：DE59104023D1

公开(公告)日：1995-02-09

申请号：DE59104023

申请日：1991-06-07

Applicant: BASF AG

Inventor： NESTLER GERHARD DR ,  RUCKH PETER DR ,  LAZARUS MANFRED

IPC: C07C67/08 ,  C07C67/58 ,  C07C69/54

Abstract: Method for the production of monoethylenically unsaturated carboxylic esters, in which, after the esterification is complete, a) the product mixture is extracted in a first extraction stage at a temperature of 10 to 40 DEG C with 5 to 30% by volume, based on the product mixture, of water and b) in a second extraction stage at a temperature of 10 to 30 DEG C the aqueous phase from the first extraction stage is extracted with one to four times the amount by weight of alkanol to be esterified.