Polysaccharide based scale inhibitor
    1.
    发明申请
    Polysaccharide based scale inhibitor 有权
    多糖类阻垢剂

    公开(公告)号:US20080277620A1

    公开(公告)日:2008-11-13

    申请号:US12151560

    申请日:2008-07-07

    IPC分类号: C07H3/00 C02F5/10 C09K8/52

    摘要: A depolymerized-carboxyalkyl polysaccharide formed by de polymerizing a polysaccharide having from 0.5 to 3.0 degrees of substitution and reducing the molecular weight of said polysaccharide before or after said depolymerizing provides a biodegradable scale inhibitor useful to prevent deposition of scale comprising, for example, calcium, barium, sulfate and salts thereof. The depolymerized carboxyalkyl polysaccharide is particularly useful in off shore oil production squeeze treatments and in the treatment of scale formed in industrial water treatment.

    摘要翻译: 通过使具有0.5至3.0度取代度并在所述解聚之前或之后降低所述多糖的分子量的多糖形成的解聚羧基烷基多糖提供了可用于防止沉积包含例如钙, 钡,硫酸盐及其盐。 解聚的羧基烷基多糖特别可用于离岸油生产挤压处理和在工业水处理中形成的垢中的处理。

    Polysaccharide based scale inhibitor
    3.
    发明授权
    Polysaccharide based scale inhibitor 有权
    多糖类阻垢剂

    公开(公告)号:US08215398B2

    公开(公告)日:2012-07-10

    申请号:US12151560

    申请日:2008-07-07

    IPC分类号: E21B21/00

    摘要: A depolymerized-carboxyalkyl polysaccharide formed by de polymerizing a polysaccharide having from 0.5 to 3.0 degrees of substitution and reducing the molecular weight of said polysaccharide before or after said depolymerizing provides a biodegradable scale inhibitor useful to prevent deposition of scale comprising, for example, calcium, barium, sulfate and salts thereof. The depolymerized carboxyalkyl polysaccharide is particularly useful in off shore oil production squeeze treatments and in the treatment of scale formed in industrial water treatment.

    摘要翻译: 通过使具有0.5至3.0度取代度并在所述解聚之前或之后降低所述多糖的分子量的多糖形成的解聚羧基烷基多糖提供了可用于防止沉积包含例如钙, 钡,硫酸盐及其盐。 解聚的羧基烷基多糖特别可用于离岸油生产挤压处理和在工业水处理中形成的垢中的处理。

    Cycloalkane Oxidation Catalysts and Method to Produce Alcohols and Ketones
    5.
    发明申请
    Cycloalkane Oxidation Catalysts and Method to Produce Alcohols and Ketones 有权
    环烷氧化催化剂和生产醇和酮的方法

    公开(公告)号:US20150175514A1

    公开(公告)日:2015-06-25

    申请号:US14416977

    申请日:2012-07-26

    IPC分类号: C07C49/385 C07C35/02

    摘要: Disclosed is a method of oxidizing a cycloalkane to form a product mixture containing a corresponding alcohol and ketone, said method comprising contacting a cycloalkane with a hydroperoxide in the presence of a catalytic effective amount of a crystalline MWW-type titanosilicate catalyst. Hydroperoxides may notably be tert-butyl hydroperoxide, tert-amyl hydroperoxide, cumene hydroperoxide, ethylbenzene hydroperoxide, cyclohexyl hydroperoxide, methylcyclohexyl hydroperoxide, tetralin hydroperoxide, isobutylbenzene hydroperoxide, and ethylnaphthalene hydroperoxide.

    摘要翻译: 公开了一种氧化环烷烃以形成含有相应的醇和酮的产物混合物的方法,所述方法包括在催化有效量的结晶MWW型钛硅酸盐催化剂的存在下使环烷烃与氢过氧化物接触。 氢过氧化物可以特别是叔丁基过氧化氢,叔戊基过氧化氢,氢过氧化枯烯,氢过氧化乙苯,环己基氢过氧化物,甲基环己基氢过氧化物,四氢化萘氢过氧化物,异丁基苯氢过氧化物和乙基萘氢过氧化物。