Preparation of higher silicon carboxylates in improved yields using an
inert gas
    5.
    发明授权
    Preparation of higher silicon carboxylates in improved yields using an inert gas 失效
    使用惰性气体制备较高硅羧酸盐,产率提高

    公开(公告)号:US4611073A

    公开(公告)日:1986-09-09

    申请号:US814127

    申请日:1985-12-27

    IPC分类号: C07F7/02

    CPC分类号: C07F7/025

    摘要: Silicon tetracarboxylates of higher acids are prepared by contacting silicon tetracarboxylates of lower fatty acids with higher fatty acids at a temperature sufficiently high to vaporize the lower fatty acid by-product. The reaction may be carried out in the presence of an inert gas, if desired.

    摘要翻译: 通过在足够高的温度下将低级脂肪酸的四羧酸四羧酸与高级脂肪酸接触以蒸发低级脂肪酸副产物来制备高级酸的四羧酸硅。 如果需要,反应可以在惰性气体存在下进行。

    Alkylation aide for sulfuric acid catalyzed alkylation units
    7.
    发明授权
    Alkylation aide for sulfuric acid catalyzed alkylation units 失效
    用于硫酸催化的烷基化单元的烷基化助剂

    公开(公告)号:US4650918A

    公开(公告)日:1987-03-17

    申请号:US801271

    申请日:1985-11-25

    IPC分类号: C07C2/54 C07C2/62 C07C2/58

    摘要: Hydrocarbon alkylation processes which are catalyzed by acids are promoted by the addition of an alkylation promoter which is a combination of a new carboxylic acid having the structural formula ##STR1## wherein R, R.sup.1 and R.sup.2 are alkyl groups and at least one aromatic hydrocarbon sulfonic acid selected from compounds having the structure ##STR2## wherein R.sup.3 is H or an alkyl group and R.sup.4 is an alkyl group.

    摘要翻译: 通过加入烷基化促进剂来促进由酸催化的烃烷基化方法,烷基化促进剂是结构式为“IMAGE”的新羧酸的组合,其中R 1,R 2和R 2是烷基和至少一个芳族烃磺酸 选自具有结构的化合物,其中R 3是H或烷基,R 4是烷基。

    Corrosion and anti-foulant composition and method of use
    9.
    发明授权
    Corrosion and anti-foulant composition and method of use 失效
    腐蚀和防垢剂的组成和使用方法

    公开(公告)号:US5173213A

    公开(公告)日:1992-12-22

    申请号:US790196

    申请日:1991-11-08

    IPC分类号: C10G70/04 C23F11/14

    CPC分类号: C23F11/14 C10G70/048

    摘要: The corrosion and fouling of metal surfaces in contact with corrosive acid fluids or acid salts in the presence of an aqueous medium is reduced by contacting the surfaces with a composition which comprises (a) an anti-fouling amount of a hydroxyl amine compound of the formulaR.sub.1 R.sub.2 N--OHwherein R.sub.1 and R.sub.2 are independently hydrogen or a hydrocarbyl or inertly substituted hydrocarbyl or both R.sub.1 and R.sub.2 are collectively a divalent hydrocarbyl combined with said nitrogen to form a heterocyclic ring, and (b) a corrosion-inhibiting amount of a reaction product of or a mixture for the purpose of a reaction product of a polyalkylene polyamine and an alkynediol. The polyalkylene polyamine is one that contains from 2-10 amine groups, each separated from another by an alkylene group having from 2-6 carbon atoms. The alkynediol has from 2 to 6 carbon atoms.

    摘要翻译: 在水性介质存在下,与腐蚀性酸性流体或酸式盐接触的金属表面的腐蚀和结垢通过使表面与包含(a)抗结垢量的式 R1R2N-OH其中R1和R2独立地是氢或烃基或惰性取代的烃基,或者R1和R2两者一起是与所述氮组合形成杂环的二价烃基,和(b)腐蚀抑制量的反应产物 的聚亚烷基多胺和炔二醇的反应产物的混合物。 聚亚烷基多胺是含有2-10个胺基的聚亚烷基多胺,各自由具有2-6个碳原子的亚烷基彼此分开。 炔二醇具有2至6个碳原子。

    Bearing race keeper ring retention sleeve
    10.
    发明授权
    Bearing race keeper ring retention sleeve 失效
    轴承座圈保持套筒

    公开(公告)号:US4806028A

    公开(公告)日:1989-02-21

    申请号:US208694

    申请日:1988-06-20

    摘要: A self crimping retention sleeve is slipped over the end of a bearing shaft and closely over a pair of race piece keeper rings and deformed radially inwardly into a shaft retention groove by the application of an axial force inwardly on the sleeve, allowing the sleeve to be installed with very limited radial access.

    摘要翻译: 自动压接保持套筒在轴承轴的端部滑动并且靠近一对座圈保持环,并且通过在套筒上向内施加轴向力而径向向内变形成轴保持槽,允许套筒为 安装非常有限的径向通道。