-
公开(公告)号:CA1067061A
公开(公告)日:1979-11-27
申请号:CA239905
申请日:1975-11-18
Applicant: DEGUSSA
Inventor: FRIEDRICH HEINZ , HEIM WOLFGANG , KLEEMANN AXEL , KOLB HEINZ , SCHREYER GERD
IPC: C07D301/02 , B01J8/18 , B01J38/00 , C01G31/00 , C01G33/00 , C01G41/00 , C07B61/00 , C07C27/00 , C07C29/03 , C07C31/18 , C07C67/00 , C07D301/12 , C07D301/32 , C07D303/04 , B01J23/16 , B01J37/00
Abstract: The present invention provides a process for the separation of a catalyst employed in the epoxidation or hydroxylation of an olefinic compound with a peroxy compound in a reactor, distilling off the epoxidized or hydroxylated product and separation of the catalyst from the distillation residue containing said catalyst and said high boiling organic compounds, said catalyst being a compound of a transition metal, the improvement comprising introducing the distillation residue into a bed of fluidized inert solid particles, burning the organic compounds of said distillation residue with an oxygen containing gas while in contact with said fluidized particles and separating fluidized particles containing a compound of the metal employed in the catalyst from the waste gas of said burning.
-
公开(公告)号:CA1085977A
公开(公告)日:1980-09-16
申请号:CA262570
申请日:1976-10-01
Applicant: DEGUSSA
Inventor: HEIM WOLFGANG , PRESCHER GUENTER , SCHREYER GERD
Abstract: The present invention provides a process for carrying out ion exchange in a cycle including loading and regenerating steps, the improvement in which at least the regeneration step, the liquid streams draining from the resin during the charging of the regenerating agent and during washing after the charging of the regenerating agent which still contain regenerating agent which can be utilized are intercepted as a single fraction, which is homogeneous with respect to composition and density, and this solution is reused in the next regeneration being recycled on the resin, both this reused fraction and fresh regenerating agent being passed over the resin in a countercurrent to the loading step.
-
公开(公告)号:CA1037051A
公开(公告)日:1978-08-22
申请号:CA220750
申请日:1975-02-25
Applicant: DEGUSSA
Inventor: HEIM WOLFGANG , KLEEMANN AXEL , KOLB HEINZ , SCHREYER GERD
IPC: C07D301/12 , C07D301/32
Abstract: The present invention provides in a process for producing glycide by reacting allyl alcohol with hydrogen peroxide in the presence of tungsten compounds, distilling the excess allyl alcohol and the major portion of the water in vacuo, dividing the bottom mixture thus obtained at a temperature of from 110 to 220.degree.C and at a pressure of from 5 to 60 torr in a falling-film evaporator into an exhaust vapour consisting primarily of glycide, higher-boiling by-products and the residual portion of the water and a bottom product of glycerin, polyglycerin and the catalyst the improvement in which said exhaust vapour; upon leaving the falling-film evaporator is directly separated into glycide, water and higher boiling byproducts at a pressure of from 5 to 60 torr.
-
公开(公告)号:DE2454630A1
公开(公告)日:1976-05-26
申请号:DE2454630
申请日:1974-11-18
Applicant: DEGUSSA
Inventor: FRIEDRICH HEINZ DR , HEIM WOLFGANG , KLEEMANN AXEL DR , KOLB HEINZ DR , SCHREYER GERD DR
-
公开(公告)号:DE2454572A1
公开(公告)日:1976-05-26
申请号:DE2454572
申请日:1974-11-18
Applicant: DEGUSSA
Inventor: FRIEDRICH HEINZ DR , HEIM WOLFGANG , KLEEMANN AXEL DR , KOLB HEINZ DR , SCHREYER GERD DR
IPC: C07D301/02 , B01J8/18 , B01J38/00 , C01G31/00 , C01G33/00 , C01G41/00 , C07B61/00 , C07C27/00 , C07C29/03 , C07C31/18 , C07C67/00 , C07D301/12 , C07D301/32 , C07D303/04 , C07C29/02
-
公开(公告)号:DE2543733A1
公开(公告)日:1977-04-07
申请号:DE2543733
申请日:1975-10-01
Applicant: DEGUSSA
Inventor: HEIM WOLFGANG , PRESCHER GUENTER DR , SCHREYER GERD DR
-
公开(公告)号:DE2408948A1
公开(公告)日:1975-09-04
申请号:DE2408948
申请日:1974-02-25
Applicant: DEGUSSA
Inventor: HEIM WOLFGANG , KLEEMANN AXEL DR , KOLB HEINZ DR , SCHREYER GERD DR
IPC: C07D301/12 , C07D301/32 , C07D303/14
Abstract: Glycide is prepared by reacting allyl alcohol with hydrogen peroxide in the presence of a tungsten compound as a catalysts the excess allyl alcohol and the greatest part of the water distilled off, the sump mixture obtained in the distillation is split at 110 DEG -220 DEG C. and 5 to 60 torr in a thin layer evaporator into a volatile portion which is predominantly glycide, high boiling by products and the residual part of the water and a sump portion of glycerine, polyglycerine and catalysts. The volatile liquid portion is broken into glycide, water and high boiling byproducts at 5 to 60 torr in a distillation apparatus directly connected to the thin layer evaporator.
-
-
-
-
-
-