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    5.
    发明专利
    未知

    公开(公告)号：DE59003124D1

    公开(公告)日：1993-11-25

    申请号：DE59003124

    申请日：1990-06-29

    Applicant: HOECHST AG

    Inventor： GIRRBACH ULRICH DR ,  HAERTL EDGAR DR ,  MALOW EGON

    IPC: B01D53/50 ,  B01D5/00 ,  B01D53/34 ,  B01D53/68 ,  B01D53/77

    Abstract: The invention relates to a process for selective absorption of chlorine and/or bromine from CO2-containing waste gases. The waste gas must contain at least 1 mol of SO2 per mol of Cl2 and/or per mol of Br2; if necessary, such a quantity of SO2 is added to the waste gas that the said relative quantity is present. For the absorption of the chlorine and/or bromine, the waste gas is mixed with steam and the mixture is then cooled until the steam condenses. An example of suitable apparatus is an upright pipe with an internal cooling coil.

    7.
    发明专利
    未知

    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.

    PROCESS FOR THE CONTINUOUS RECTIFICATION OF A LIQUID MIXTURE CONTAINING ALCOHOLS
    8.
    发明专利
    PROCESS FOR THE CONTINUOUS RECTIFICATION OF A LIQUID MIXTURE CONTAINING ALCOHOLS 未知

    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.

    RECTIFY ALCOHOL FROM FERMENTATION PRODUCTS
    10.
    发明专利
    RECTIFY ALCOHOL FROM FERMENTATION PRODUCTS 未知

    公开(公告)号：AU9014382A

    公开(公告)日：1983-05-12

    申请号：AU9014382

    申请日：1982-11-04

    Applicant: HOECHST AG

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

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

    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.

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