PROCESS FOR THE CONTINUOUS RECTIFICATION OF A LIQUID MIXTURE CONTAINING ALCOHOLS

    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

    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 Direct steam is generated by indirect heat exchange of water with the top vapor withdrawn from the columns, and the resulting direct steam is fed to the sumps of the next-lower-pressure columns.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.

    7.
    发明专利
    未知

    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

    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 Direct steam is generated by indirect heat exchange of water with the top vapor withdrawn from the columns, and the resulting direct steam is fed to the sumps of the next-lower-pressure columns.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.

    PROCESS FOR THE PREPARATION OF SINGLE CELL PROTEIN

    公开(公告)号:CA1102173A

    公开(公告)日:1981-06-02

    申请号:CA283357

    申请日:1977-07-22

    Applicant: HOECHST AG

    Abstract: of the disclosure: A process for the preparation of a biomass is disclosed by cultivation of bacteria of the genus Methylomonas under aerobic conditions in a nutrient medium containing methanol as the sole carbon source, nitrogen sources and essential mineral salts, which comprises using a strain of the species Methylomonas clara ATCC 31226. The single cell protein thus obtained has a low content of nucleic acids, fats and carbohydrates and is especially suitable to prepare food and feed.

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