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    PRODUCTION OF TRIMETHYLHYDROQUINONE
    2.
    发明专利
    PRODUCTION OF TRIMETHYLHYDROQUINONE 失效

    公开(公告)号：JPH1053548A

    公开(公告)日：1998-02-24

    申请号：JP12040397

    申请日：1997-05-12

    Applicant: DEGUSSA

    Inventor： HUEBNER FRANK DR ,  KRILL STEFFEN DR ,  DRAPAL BERND ,  HERUMAN SHIYUMITSUTO ,  HUTHMACHER KLAUS DR ,  TANNER HERBERT DR

    IPC: B01J31/02 ,  C07B61/00 ,  C07C27/02 ,  C07C37/055 ,  C07C37/07 ,  C07C39/08 ,  C07C67/00

    Abstract: PROBLEM TO BE SOLVED: To obtain the subject compound in high yield by reacting a trimethylcyclohexenedione with an acylating agent in the presence of a protonic acid. SOLUTION: 3,3,5-Trimethylcyclohex-2-ene-1,4-dione is reacted with an acylating agent in the presence of a protonic acid and the formed trimethylhydroquinone ester is successively saponified to give the objective compound. A trifluoromethanesulfonic acid, chlorosulfonic acid, polyphosphoric acid, fuming sulfuric acid or a mixture of these acids is used as the protonic acid. The amount of the acylating agent is 2-4mol based on 1mol of 3,5,5- trimethylcyclohex-2-ene-1,4-dione and that of the acid is 0.1-50wt.%. The saponification is carried out in the presence of a phase mediation agent (e.g. n-butanol). The amount of the acid used is reduced and the saponification can also be extremely readily carried out.

    5.
    发明专利
    未知

    公开(公告)号：DE59203452D1

    公开(公告)日：1995-10-05

    申请号：DE59203452

    申请日：1992-09-09

    Applicant: DEGUSSA

    Inventor： BINDER WOLFRAM DR ,  FRIEDRICH HEINZ DR ,  LOTTER HERMANN DR ,  TANNER HERBERT DR ,  HOLLDORFF HENNING DR ,  LEUCHTENBERGER WOLFGANG DR

    IPC: A23K1/00 ,  A23K1/16 ,  C12P13/04 ,  C12P13/08

    Abstract: 2.1. Fermentative preparation of amino acids for animal feed supplement purposes is a complex process, since the amino acid is present in the fermentation broth at only a few percent. Drying the crude fermentation broth and using it as such generally led to aggregating sticky products or to products having too low a supplementary amino acid content. Using the new animal feed supplement and preparation process, a supplementary amino acid is intended to be made available which is not too expensive, not excessively hygroscopic or sticky, and whose contents can be standardised. 2.2. The animal feed supplement is based on a fermentation broth and contains the majority of its components, if required, with the exception of part of the biomass. Preferably, the biomass is present at no more than 10 % by weight of the dry matter. Proteins are preferably present at up to a maximum of 10 % by weight. For the production, during fermentation, at least towards the end, the sugar content is adjusted to a value of at most 4 g/l and during further processing, if required, at least a part of the biomass is separated off. 2.3. Supplementation or preparation of animal feed agents or premixes, in particular containing lysine.

    6.
    发明专利
    未知

    公开(公告)号：AT126971T

    公开(公告)日：1995-09-15

    申请号：AT92115390

    申请日：1992-09-09

    Applicant: DEGUSSA

    Inventor： BINDER WOLFRAM DR ,  FRIEDRICH HEINZ DR ,  LOTTER HERMANN DR ,  TANNER HERBERT DR ,  HOLLDORFF HENNING DR ,  LEUCHTENBERGER WOLFGANG DR

    IPC: A23K1/00 ,  A23K1/16 ,  C12P13/04 ,  C12P13/08

    Abstract: 2.1. Fermentative preparation of amino acids for animal feed supplement purposes is a complex process, since the amino acid is present in the fermentation broth at only a few percent. Drying the crude fermentation broth and using it as such generally led to aggregating sticky products or to products having too low a supplementary amino acid content. Using the new animal feed supplement and preparation process, a supplementary amino acid is intended to be made available which is not too expensive, not excessively hygroscopic or sticky, and whose contents can be standardised. 2.2. The animal feed supplement is based on a fermentation broth and contains the majority of its components, if required, with the exception of part of the biomass. Preferably, the biomass is present at no more than 10 % by weight of the dry matter. Proteins are preferably present at up to a maximum of 10 % by weight. For the production, during fermentation, at least towards the end, the sugar content is adjusted to a value of at most 4 g/l and during further processing, if required, at least a part of the biomass is separated off. 2.3. Supplementation or preparation of animal feed agents or premixes, in particular containing lysine.

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