Production of potassium titanyl oxalate
    2.
    发明授权
    Production of potassium titanyl oxalate 失效
    钛酸钾的生产

    公开(公告)号:US3699137A

    公开(公告)日:1972-10-17

    申请号:US3699137D

    申请日:1970-12-08

    CPC classification number: C07F7/006

    Abstract: Process for the production of potassium titanyl oxalate which comprises heating a tetraalkyl titanate with about three times the molar amount of water and twice the molar amount of potassium hydrogen oxalate. If desired, two thirds of the water is added initially and the balance subsequently. A solvent such as an alkanol may be employed. Advantageously the reaction, distillation of volatiles, crystallization and drying are all performed in the same vessel.

    Abstract translation: 用于生产草酸氧钛钾的方法,其包括用约三倍摩尔量的水和两倍于草酸氢钾的摩尔量加热钛酸四烷基酯。 如果需要,最初加入三分之二的水,然后平衡。 可以使用溶剂如链烷醇。 有利的是,挥发物的反应,蒸馏,结晶和干燥都在相同的容器中进行。

    Method for preparation of {66 {hu 2,5{b -cyclohexadiene dicarboxylic acid-1,2 by reducing aqueous solutions of alkali phthalate with alkali amalgam
    4.
    发明授权
    Method for preparation of {66 {hu 2,5{b -cyclohexadiene dicarboxylic acid-1,2 by reducing aqueous solutions of alkali phthalate with alkali amalgam 失效
    通过用碱性氨基酸还原碱性磷酸盐的水溶液来制备{66 {HU 2 H 2 {B-环己基二甲基氨基酸-1,2-

    公开(公告)号:US3880915A

    公开(公告)日:1975-04-29

    申请号:US19113071

    申请日:1971-10-20

    CPC classification number: C07C51/36 C07C61/22

    Abstract: A method for preparing Delta 2,5-cyclohexadiene dicarboxylic acid-1,2 is disclosed. The process involves reduction of an alkali phthalate by means of an alkali metal amalgam. The disclosed method has particular utility in that an efficient means for selectively reducing phthalic acid to Delta 2,5cyclohexadiene dicarboxylic acid-1,2 is provided.

    Abstract translation: 公开了一种制备DELTA 2,5-环己二烯二羧酸-1,2的方法。 该方法包括通过碱金属汞齐还原碱式邻苯二甲酸酯。 所公开的方法具有特别的用途,因为提供了选择性还原邻苯二甲酸至DELTA 2,5-环己二烯二羧酸-1,2的有效手段。

    Manufacture of polyurethanes using organic zirconium compounds as catalysts
    5.
    发明授权
    Manufacture of polyurethanes using organic zirconium compounds as catalysts 失效
    使用有机ZIRCONIUM化合物作为催化剂制备聚氨酯

    公开(公告)号:US3673159A

    公开(公告)日:1972-06-27

    申请号:US3673159D

    申请日:1970-05-11

    CPC classification number: C08G18/0885 C08G18/222

    Abstract: In the manufacture of a polyurethane by the reaction of a polyol with a polyisocyanate in the presence of a catalyst and in the absence of water, the catalyst used is an organic zirconium compound, preferably a zirconium alcoholate or phenolate, having the formula: (Y)mZr(YR)4 2m WHEREIN: Zr is a zirconium atom Y is an oxygen or sulfur atom R is an organic radical of up to 12 carbon atoms, which can be alike or different M IS 0 OR 1.

    Abstract translation: 在通过多元醇与多异氰酸酯在催化剂存在下和不存在水的情况下反应制备聚氨酯时,所用的催化剂是具有下式的有机锆化合物,优选醇锆或酚盐,具有下式:(Y )mZr(YR)4-2mWHEEIN:

    Production of vanadium oxytrichloride
    6.
    发明授权
    Production of vanadium oxytrichloride 失效
    生产氧化亚铁(VANADIUM OXYTRICHLORIDE)

    公开(公告)号:US3684433A

    公开(公告)日:1972-08-15

    申请号:US3684433D

    申请日:1970-07-22

    CPC classification number: C01G31/04

    Abstract: IN THE PRODUCTION OF VANADIUM OXYTRICHLORIDE WHEREIN VANADIUM PENTOXID, CARBON AND CHLORINE ARE REACTED, THE IMPROVEMENT WHICH COMPRISES EFFECTING THE REACTION BY CONTACTING A MIXTURE OF FINE-GRAINED VANADIUM PENTOXIDE AND CARBON IN THE FORM OF A GAS PERMEABLE LAYER ABOUT 0.5 TO 20 CM. HIGH WITH CHLORINE AT A TEMPERATURE OF ABOUT 350 TO 750*C. PREFERABLY THE PROCESS IS CARRIED OUT CONTINUOUSLY AND THE REACTION TEMPERATURE IS MAINTAINED AND CONTROLLED BY REGULATING THE RATE OF ADDITION OF THE REACTANTS. THE RESULTING VANADIUM OXYTRICHLORIDE IS VOLATILIZED AT A TEMPERATURE OF ABOUT 150*C. AND IS THEREAFTER CONDENSED.

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