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    Process for the production of tris (hydroxymethyl) aminomethane crystals
    4.
    发明授权
    Process for the production of tris (hydroxymethyl) aminomethane crystals 失效
    制备三（羟甲基）氨基甲烷晶体的方法

    公开(公告)号：US3338970A

    公开(公告)日：1967-08-29

    申请号：US34840164

    申请日：1964-03-02

    Applicant: COMMERCIAL SOLVENTS CORP

    Inventor： SCHMITZ FRED W ,  TINDALL JOHN B

    IPC: B01D9/00

    CPC classification number: B01D9/0018 ,  B01D9/0059

    Abstract: 1,050,586. Tris(hydroxymethyl)aminomethane. COMMERCIAL SOLVENTS CORPORATION. Feb. 3, 1965 [March 2, 1964], No. 4651/65. Heading C2C. Tris(hydroxymethyl)aminomethane (designated as T.A.) is produced by a process comprising crystallizing T.A. from an aqueous solution in a crystallizer, preferably a continuous evaporative type, separating the crystals from the mother liquor, evaporating the mother liquor to a melt of T.A., and solvent extracting the melt with a C 1 to C 5 alkanol, preferably with butanol, and preferably recirculating the solvent-extracted T.A. to the crystallizer. T.A. may be made by condensing nitromethane with formaldehyde and reducing the product. The detailed description relates to a continuous process which is described with reference to a flow-sheet (not shown).

    Abstract translation: 1,050,586。 三（羟甲基）氨基甲烷。 商业解决方案公司 1965年2月3日[1964年3月2日]，第4651/65号。 标题C2C。 通过包括使T.A.结晶的方法制备三（羟甲基）氨基甲烷（称为T.A.）。 从结晶器中的水溶液中，优选连续蒸发型，将晶体与母液分离，将母液蒸发成TA的熔体，并用C 1至C 5链烷醇，优选用丁醇萃取熔体， 并优选将溶剂萃取的TA再循环 结晶器。 T.A. 可以通过将硝基甲烷与甲醛缩合并还原产物来制备。 详细描述涉及参考流程图（未示出）描述的连续过程。

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