公开(公告)号：DE1667039A1

公开(公告)日：1972-04-06

申请号：DE1667039

申请日：1967-03-03

Applicant: HOECHST AG

Inventor： HECK GUENTER ,  ANDERS ULRICH

IPC: B01D3/20 ,  B01D

公开(公告)号：DE1901963A1

公开(公告)日：1970-09-24

申请号：DE1901963

申请日：1969-01-16

Applicant: HOECHST AG

Inventor： KRAUSE DR WALTER ,  SCHILKEN HARTMUT ,  MALOW EGON ,  HECK GUENTER

IPC: C07C7/11 ,  C07C7/10

Abstract: 1,256,052. Separating carbon dioxide and acetylene from cracked gas. FARBWERKE HOECHST A.G. 15 Jan., 1970 [16 Jan., 1969], No. 1985/70. Addition to 1,242,634. Heading B1L. The rich dimethylformamide loaded principally with carbon dioxide and acetylene from used in the process of the Parent Specification, predegassed at 1.05-1.3 ats. abs. and 95- 110‹C.; 60-70% of the still partially charged product is returned directly for reuse, while the remaining 40-30% is completely degassed at 0.25-0.55 ats. abs. and 110-130‹C. before also being returned to the final wash stage of the process.

公开(公告)号：DK160946B

公开(公告)日：1991-05-06

申请号：DK488182

申请日：1982-11-03

Applicant: HOECHST AG

Inventor： HECK GUENTER ,  LIENERTH ALADAR ,  SCHWARZ KARL-HEINZ ,  FAUST UWE ,  MALOW EGON

IPC: C12H6/02 ,  B01D1/26 ,  B01D3/14 ,  C07C27/00 ,  C07C29/80 ,  C07C31/08 ,  C07C67/00 ,  C12F1/08

Abstract: A process for continuous rectification of a liquid mixture containing alcohols, particularly a liquid fermate, employs a plurality of distillation columns to which the liquid mixture is fed in parallel, and which have successively reduced operating pressures and temperatures from an initial one to a final one thereof. The top vapor distillate from the higher-pressure columns supplies driving heat to the sumps of the next successively lower-pressure columns. Direct steam at 130 DEG C. to 160 DEG C. is fed to the sump of the column operated at the highest pressure. Direct steam is generated by indirect heat exchange of water with the top vapor withdrawn from the columns, and the resulting direct steam is fed to the sumps of the next-lower-pressure columns. The apparatus can also include a section for the production of absolute alcohol.

公开(公告)号：DE3143734A1

公开(公告)日：1983-05-11

申请号：DE3143734

申请日：1981-11-04

Applicant: HOECHST AG

Inventor： HECK GUENTER ,  LIENERTH ALADAR DR ,  MALOW EGON ,  SCHWARZ KARL-HEINZ ,  FAUST UWE DR

IPC: C12H6/02 ,  B01D1/26 ,  B01D3/14 ,  C07C27/00 ,  C07C29/80 ,  C07C31/08 ,  C07C67/00 ,  C12F1/06

Abstract: A process for continuous rectification of a liquid mixture containing alcohols, particularly a liquid fermate, employs a plurality of distillation columns to which the liquid mixture is fed in parallel, and which have successively reduced operating pressures and temperatures from an initial one to a final one thereof. The top vapor distillate from the higher-pressure columns supplies driving heat to the sumps of the next successively lower-pressure columns. Direct steam at 130 DEG C. to 160 DEG C. is fed to the sump of the column operated at the highest pressure. Direct steam is generated by indirect heat exchange of water with the top vapor withdrawn from the columns, and the resulting direct steam is fed to the sumps of the next-lower-pressure columns. The apparatus can also include a section for the production of absolute alcohol.

公开(公告)号：AT24413T

公开(公告)日：1987-01-15

申请号：AT82110069

申请日：1982-11-02

Applicant: HOECHST AG

Inventor： HECK GUENTER ,  LIENERTH ALADAR DR ,  MALOW EGON ,  SCHWARZ KARL-HEINZ ,  FAUST UWE DR

IPC: C12H6/02 ,  B01D1/26 ,  B01D3/14 ,  C07C27/00 ,  C07C29/80 ,  C07C31/08 ,  C07C67/00 ,  C12F1/00

公开(公告)号：ZA828035B

公开(公告)日：1983-09-28

申请号：ZA828035

申请日：1982-11-03

Applicant: HOECHST AG

Inventor： HECK GUENTER ,  LIENERTH ALADAR ,  MALOW EGON ,  SCHWARZ KARL-HEINZ ,  FAUST UWE

IPC: B01D1/26 ,  C12H6/02 ,  B01D3/14 ,  C07C27/00 ,  C07C29/80 ,  C07C31/08 ,  C07C67/00 ,  C12F

Abstract: A process for continuous rectification of a liquid mixture containing alcohols, particularly a liquid fermate, employs a plurality of distillation columns to which the liquid mixture is fed in parallel, and which have successively reduced operating pressures and temperatures from an initial one to a final one thereof. The top vapor distillate from the higher-pressure columns supplies driving heat to the sumps of the next successively lower-pressure columns. Direct steam at 130 DEG C. to 160 DEG C. is fed to the sump of the column operated at the highest pressure. Direct steam is generated by indirect heat exchange of water with the top vapor withdrawn from the columns, and the resulting direct steam is fed to the sumps of the next-lower-pressure columns. The apparatus can also include a section for the production of absolute alcohol.

公开(公告)号：CA1027062A

公开(公告)日：1978-02-28

申请号：CA204283

申请日：1974-07-08

Applicant: HOECHST AG

Inventor： HECK GUENTER ,  ROSCHER GUENTER ,  DONTH RUDOLF

IPC: C07C67/54 ,  B01D3/00 ,  B01D3/36 ,  C07C51/00 ,  C07C51/46 ,  C07C67/00 ,  C07B29/00

Abstract: Water is separated by distillation from organic multiple component mixtures containing at least one component partly miscible with water. The component miscible with water is distilled azeotropically with the water contained in the mixture, the distillate is separated into water and a zeotrope forming agent and the latter is recycled to the distilling column. In the recycling process, one part of the azeotrope forming agent is conducted to the top of the column and the other part is fed into the column at the feed mixture inlet or at a location thereunder.

公开(公告)号：DK488182A

公开(公告)日：1983-05-05

申请号：DK488182

申请日：1982-11-03

Applicant: HOECHST AG

Inventor： HECK GUENTER ,  LIENERTH ALADAR ,  SCHWARZ KARL-HEINZ ,  FAUST UWE ,  MALOW EGON

IPC: C12H6/02 ,  B01D1/26 ,  B01D3/14 ,  C07C27/00 ,  C07C29/80 ,  C07C31/08 ,  C07C67/00 ,  C12F

Abstract: A process for continuous rectification of a liquid mixture containing alcohols, particularly a liquid fermate, employs a plurality of distillation columns to which the liquid mixture is fed in parallel, and which have successively reduced operating pressures and temperatures from an initial one to a final one thereof. The top vapor distillate from the higher-pressure columns supplies driving heat to the sumps of the next successively lower-pressure columns. Direct steam at 130 DEG C. to 160 DEG C. is fed to the sump of the column operated at the highest pressure. Direct steam is generated by indirect heat exchange of water with the top vapor withdrawn from the columns, and the resulting direct steam is fed to the sumps of the next-lower-pressure columns. The apparatus can also include a section for the production of absolute alcohol.

公开(公告)号：DE1568575A1

公开(公告)日：1970-03-05

申请号：DE1568575

申请日：1966-08-30

Applicant: HOECHST AG

Inventor： ROSSBERG DR MANFRED ,  ANDERS ULRICH ,  OESER HANNS-RUDOLF ,  HECK GUENTER ,  WALD WALTER

IPC: C01B7/00 ,  C01B7/01 ,  C07C17/00 ,  C07C17/38 ,  C07C19/01 ,  C07C67/00

公开(公告)号：CA1191106A

公开(公告)日：1985-07-30

申请号：CA414760

申请日：1982-11-03

Applicant: HOECHST AG

Inventor： HECK GUENTER ,  LIENERTH ALADAR ,  MALOW EGON ,  SCHWARZ KARL-HEINZ ,  FAUST UWE

IPC: C12H6/02 ,  B01D1/26 ,  B01D3/14 ,  C07C27/00 ,  C07C29/80 ,  C07C31/08 ,  C07C67/00 ,  C07C29/82

Abstract: of the disclosure: A process for the continuous rectification of a liquid mixture containing alcohols, in particular a fermented mash which has been substantially or completely freed from suspended substances, in an apparatus which is composed of several distillation columns linked with one another on the vapor side and which, in addition to a section used for the concentration of alcohol, can also contain a section used for the production of absolute alcohol, with the repeated utilization of the heat energy supplied on the multi-effect principle, which comprises a) distributing the liquid mixture in parallel to the distillation columns in the section of apparatus used for the concentration of alcohol, and feeding direct steam, having a temperature of 130 to 160.degree.C, to the sump of the column operated at the highest pressure; b) recovering heat energy in the form of direct steam from the top vapor of this column by means of a heat exchanger and feeding this steam, together with flash steam, formed in the sump of the same column, in a flash vessel, to the stripping section of the second column following; c) recovering direct steam in the same manner also from the top vapor of the second column and feeding this steam, together with the flash steam obtained from the sump of this column, to the third column, and, if appropriate also operating further downstream columns in this manner, the contentrated alcohol condensing in the heat exchangers being withdrawn, minus the portion refluxed, and, if appropriate being fed to a section for the production of absolute alcohol, in which d) the residual water still remaining is substantially removed from the concentrated alcohol by azeotropic distillation in one or more columns connected with one another in tandem on the vapor side.