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    Nitric acid esters of monoacyl glycerines and their production
    214.
    发明授权
    Nitric acid esters of monoacyl glycerines and their production 失效
    单酰基甘油的硝酸酯及其制备

    公开(公告)号：US2302324A

    公开(公告)日：1942-11-17

    申请号：US25259139

    申请日：1939-01-24

    Applicant: HELMUT JACOBI ,  WALTER FLEMMING

    Inventor： HELMUT JACOBI ,  WALTER FLEMMING

    IPC: C07C67/26 ,  C07C203/04

    CPC classification number: C07C203/04 ,  C07C67/26 ,  C07C201/02 ,  C07C69/02

    Abstract: 510,854. Glycerine esters. I.G. FARBENINDUSTRIE AKT.-GES. Feb. 7, 1939, No. 3993. Convention date, Feb. 10, 1938. [Class 2 (iii)] Nitric acid esters of mono acyl glycerines are prepared by reacting glycide nitrate with organic acids, e.g., aliphatic and aromatic carboxylic acids such as formic, acetic and substituted and unsubstituted benzoic acids, preferably at elevated temperatures, e.g., 60‹-120‹C. and preferably in the presence of a little metallic chloride, e.g., ferric chloride, with or without the addition of an inert solvent. The mononitric acid esters formed may be converted into the dinitric acid esters by nitrating with concentrated nitric acid, preferably in the presence of concentrated sulphuric acid. The products render glycerine trinitrate and other liquid explosives which tend to solidify at low temperatures more difficult to freeze In examples (i) and (ii) glycerine monoformate mononitrate and glycerine monoacetate mononitrate, the major part of which probably contain the acyl radicle in the alpha-position, are prepared by reacting formic and glacial acetic acid with glycide nitrate in the presence of a little ferric chloride at 95‹-100‹C. for 15 minutes, (iii) glycerine mononitrobenzoate mononitrate, the major part of which probably contains the nitrobenzoic acid radicle in the alpha-position, is prepared by heating glycide nitrate, meta-nitrobenzoic acid and ferric chloride at 100‹-110‹C. for 2 hours, (iv) glycerine monoacetate dinitrate, the major part of which is probably alpha-acetyl compound, is prepared by introducing glycerine monoacetate mononitrate (see example (ii)) into a mixture of nitric acid (S.G. 1.5) and oleum at 25‹C.

    Process of and apparatus for nitrating glycerine, glycol, and similar alcohols
    219.
    发明授权
    Process of and apparatus for nitrating glycerine, glycol, and similar alcohols 失效
    用于硝化甘油，乙二醇和类似醇的方法和设备

    公开(公告)号：US1893447A

    公开(公告)日：1933-01-03

    申请号：US24947328

    申请日：1928-01-25

    Applicant: KARL SCHMID

    Inventor： HANS SCHMID ,  IRMA SCHMID

    IPC: C07C201/02

    CPC classification number: C07C201/02 ,  C07C203/04 ,  C07C203/06

    Abstract: 284,700. Schmid, A., and Meissner, J., (Assignees of Dynamit-Akt.-Ges. vorm. A. Nobel & Co.). Feb. 5, 1927, [Convention date]. Nitrates of glycerol and similar alcohols.-In nitrating glycerine, glycol and similar alcohols, glycerine, &c. is introduced by a pipe 9 and nitrating acid through openings 7 into a current of reacting mixture circulating between a reaction chamber 4 and a cooling chamber 5 separated by a partittion which may be formed of cooling tubes 3 placed closed together. Excess of the reaction mixture overflows through the outlet 2. The circulation is maintained by a stirrer 6 or by injection of air. The cooling-chamber 5 may be tubes through which cooling medium is circulated or may be arranged so that the reaction mixture passes through tubes surrounded by a cooling medium.

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