Method of refining benzoic acid
    1.
    发明授权
    Method of refining benzoic acid 失效
    精制苯甲酸的方法

    公开(公告)号:US06211404B1

    公开(公告)日:2001-04-03

    申请号:US09269552

    申请日:1999-03-30

    IPC分类号: C07C5142

    CPC分类号: B01D9/004 C07C51/43 C07C63/06

    摘要: This invention relates to a process for purifying benzoic acid continuously to a purity of 99.9% or more by introducing crystals of crude benzoic acid with a bulk density of 0.2 g/cm3 or more and an average particle diameter of 0.3 mm or more into a continuous crystallization apparatus equipped with a stirrer and a heating device from the upper portion of the apparatus, effecting counter-current contact of the falling crystals of crude benzoic acid with the melt generated by heating with the heating device, withdrawing the purified benzoic acid as melt from the lower portion of the apparatus, and withdrawing the mother liquor from the upper portion of the apparatus. The process makes it possible to prepare high-purity benzoic acid continuously in a relatively simple apparatus at high efficiency.

    摘要翻译: 本发明涉及通过将堆积密度为0.2g / cm 3以上,平均粒径为0.3mm以上的粗苯甲酸的结晶引入到连续的方式,连续纯化苯甲酸至99.9%以上的方法 从装置的上部装配有搅拌器和加热装置的结晶装置,使粗苯甲酸的降落晶体与通过加热装置加热产生的熔体逆流接触,将纯化的苯甲酸作为熔体从 设备的下部,并从母体的上部排出母液。 该方法使得可以在相对简单的装置中以高效率连续制备高纯度苯甲酸。

    Milky detergent composition for hard surfaces
    3.
    发明授权
    Milky detergent composition for hard surfaces 失效
    用于硬表面的乳白色洗涤剂组合物

    公开(公告)号:US5389282A

    公开(公告)日:1995-02-14

    申请号:US203478

    申请日:1994-02-28

    摘要: A milky detergent composition for hard surfaces comprising the following components (a) and (b):(a) 1-50 wt. % of an alkylglycoside; and(b) 1-30 wt. % of one or more compounds selected from the group consisting of:(b-1) lipids selected from hydrocarbons, higher alcohols, fatty acids, waxes, cholesterol and cholesterol esters and having a melting point of 30.degree. C. or higher;(b-2) partial esters of aliphatic hydrocarbon polyols having a melting point of 30.degree. C. or higher and 2-9 carbon atoms with fatty acids having at least 13 carbon atoms on the average; and(b-3) partial ethers of aliphatic hydrocarbon polyols having a melting point of 30.degree. C. or higher and 2-9 carbon atoms with aliphatic hydrocarbons having at least 13 carbon atoms on the averagethe proportion of the component (b) to the component (a) ranging from 1/10 to 10/1 by weight, optionally containing at least one nitrogen-containing surfactant and/or an anionic surfactant.

    摘要翻译: 一种用于硬表面的乳状洗涤剂组合物,其包含以下组分(a)和(b):(a)1-50wt。 %的烷基糖苷; 和(b)1-30wt。 %的一种或多种选自:(b-1)选自烃,高级醇,脂肪酸,蜡,胆固醇和胆固醇酯的脂质并且具有30℃或更高的熔点的化合物; (b-2)平均具有至少13个碳原子的脂肪酸的脂肪烃多元醇的部分酯,其具有30℃或更高和2-9个碳原子的熔点; 和(b-3)具有30℃或更高和2-9个碳原子的脂肪烃多元醇的部分醚与具有至少13个碳原子的脂族烃平均成分(b)至 组分(a)的重量范围为1/10至10/1,任选地含有至少一种含氮表面活性剂和/或阴离子表面活性剂。

    Containing a succinic acid derivative
    4.
    发明授权
    Containing a succinic acid derivative 失效
    含有琥珀酸衍生物

    公开(公告)号:US4985177A

    公开(公告)日:1991-01-15

    申请号:US417038

    申请日:1989-10-04

    摘要: A concentrated detergent composition comprising the following components (a)-(d) was disclosed,(a) a sulfate anionic or sulfonate anionic surface active agent,(b) a nonionic or amphoteric surface active agent,(c) a succinic acid derivative represented by the following formula (I): ##STR1## (d) a lower alkylbenzenesulfonate represented by the following formula (II): ##STR2## The concentrated liquid detergent composition has an excellent low-temperature stability and is capable of maintaining a homogeneous phase when thawed after frozen.

    摘要翻译: 公开了包含以下组分(a) - (d)的浓缩洗涤剂组合物,(a)硫酸盐阴离子或磺酸盐阴离子表面活性剂,(b)非离子或两性表面活性剂,(c)琥珀酸衍生物 (I):(I)(d)由下式(II)表示的低级烷基苯磺酸盐:(II)浓缩液体洗涤剂组合物具有优异的低温稳定性,并且能够 在冷冻后解冻时保持均质相。