Method for synthesis of lactic acid and its derivatives
    1.
    发明授权
    Method for synthesis of lactic acid and its derivatives 有权
    乳酸及其衍生物的合成方法

    公开(公告)号:US08835670B2

    公开(公告)日:2014-09-16

    申请号:US13727589

    申请日:2012-12-26

    发明人: Xiaoping Zhou Rui Bi

    IPC分类号: C07C69/68 C07C51/00

    摘要: A method for synthesis of lactic acid and its derivatives is provided. First, a mixture is prepared, which includes: at least one carbohydrate-containing raw material, at least one alcohol, at least one composite catalyst containing metal chloride(s) (MCln) and tin-containing compound(s), and at least one solvent, wherein M is selected from a group consisting of Li+, Na+ K+, Mg2+, Ca2+, Sr2+, Ga3+, In3+, Sb3+, Bi3+, Cr3+, Mn2+, Fe2+, Co2+, Ni2+, Zn2+, and n represents 1, 2 or 3. Then, the mixture is heated to obtain lactic acid and its derivatives. By using the above catalyst and method, it is capable of converting carbohydrate-containing raw material to lactic acid and its derivatives directly in a more efficient and economical way.

    摘要翻译: 提供了一种合成乳酸及其衍生物的方法。 首先,制备混合物,其包括:至少一种含碳水化合物的原料,至少一种醇,至少一种含有金属氯化物(MCln)和含锡化合物的复合催化剂,至少 一种溶剂,其中M选自Li +,Na + K +,Mg2 +,Ca2 +,Sr2 +,Ga3 +,In3 +,Sb3 +,Bi3 +,Cr3 +,Mn2 +,Fe2 +,Co2 +,Ni2 +,Zn2 +,n表示1,2或 然后,将混合物加热以获得乳酸及其衍生物。 通过使用上述催化剂和方法,能够以更有效和经济的方式将含碳水化合物的原料直接转化成乳酸及其衍生物。

    Production of anhydrous stannic chloride from aqueous solution
    4.
    发明授权
    Production of anhydrous stannic chloride from aqueous solution 失效
    从水溶液生产无水氯化钠

    公开(公告)号:US3642647A

    公开(公告)日:1972-02-15

    申请号:US3642647D

    申请日:1969-01-17

    IPC分类号: C01G19/08

    CPC分类号: C01G19/08

    摘要: A PROCESS FOR THE DEHYDRATING OF AQUEOUS SOLUTIONS CONTAINING TETRAVALENT TIN AND CHLORIDE IONS BY TREATMENT THEREOF WITH SULFURIC ACID OR OLEUM TO FORM AN UPPER PHASE CONTAINING SULFURIC ACID AND A LOWER PHASE CONSISTING OF ANHYDROUS STANNIC CHLORIDE AND REMOVING AND RECOVERING THE LOWER PHASE AS AN ANHYDROUS STANNIC CHLORIDE PRODUCT.