Method for the prevention of fouling in a caustic solution
    12.
    发明授权
    Method for the prevention of fouling in a caustic solution 失效
    防止腐蚀性溶液中污垢的方法

    公开(公告)号:US5220104A

    公开(公告)日:1993-06-15

    申请号:US898976

    申请日:1992-06-15

    IPC分类号: C07C7/11 C07C7/20 C10G27/06

    CPC分类号: C10G27/06 C07C7/11 C07C7/20

    摘要: The present invention is directed to the use of a solution of a percarbonate compound to prevent fouling during the basic washing of hydrocarbons containing oxygenated compounds. More specifically, oxygenated compounds such as carbonyl containing organics have a tendency to polymerize, producing fouling elements when such are contained in hydrocarbons being washed with basic materials. Solutions of percarbonate compounds are quite effective in reducing the fouling tendencies due to these specific mechanisms.

    摘要翻译: 本发明涉及过碳酸盐化合物溶液在含有氧化化合物的烃的基本洗涤过程中防止结垢的用途。 更具体地,含羰基的有机物的氧化化合物具有聚合的倾向,当用碱性材料洗涤的烃中含有这些化合物时,产生结垢元素。 过碳酸盐化合物的解决方案对于减少由于这些特定机制导致的结垢倾向是非常有效的。

    Compositions of phosphorus derivatives of polyalkenylsuccinimides
    13.
    发明授权
    Compositions of phosphorus derivatives of polyalkenylsuccinimides 失效
    聚烯基琥珀酰亚胺的磷衍生物的组成

    公开(公告)号:US5194620A

    公开(公告)日:1993-03-16

    申请号:US871372

    申请日:1992-04-20

    IPC分类号: C10G9/16

    CPC分类号: C10G9/16

    摘要: Phosphorus derivatives of polyalkenylsuccinimides and methods of use of such derivatives as antifoulants in liquid hydrocarbonaceous mediums, such as crude oil, during processing at elevated temperatures are disclosed. The derivatives are formed via reaction of a polyalkenylsuccinimide intermediate with formaldehyde and a phosphorus compound having at least one acidic hydrogen P-H bond. The intermediate is first formed via reaction of polyalkenylsuccinic anhydride and polyamine.

    摘要翻译: 公开了聚链烯基琥珀酰亚胺的磷衍生物和在液体烃类介质(如原油)中在高温加工过程中使用这些衍生物作为防污剂的方法。 衍生物通过聚烯基琥珀酰亚胺中间体与甲醛和具有至少一个酸性氢P-H键的磷化合物的反应形成。 中间体首先通过聚烯基琥珀酸酐和多胺的反应形成。

    Selected hydroxy-oximes as iron deactivators
    14.
    发明授权
    Selected hydroxy-oximes as iron deactivators 失效
    选择的羟基肟作为铁钝化剂

    公开(公告)号:US5100532A

    公开(公告)日:1992-03-31

    申请号:US622456

    申请日:1990-12-05

    IPC分类号: C09K8/035 C10G9/16 C10L1/23

    摘要: 2'-hydroxy-4' or 5'-alkylacetophenone oximes and 2-hydroxy-4 or 5-alkylbenzaldehyde oximes are used to deactivate iron species contained in hydrocarbon fluids. Left untreated, iron leads to decomposition of the hydrocarbon, resulting in the formation of gummy, polymer masses in the hydrocarbon liquid.

    摘要翻译: 2'-羟基-4'或5'-烷基苯乙酮肟和2-羟基-4或5-烷基苯甲醛肟用于使包含在烃流体中的铁物质失活。 未经处理,铁导致烃的分解,导致在烃液体中形成胶状的聚合物质量。

    Enhancement of aromatic amine inhibition of acrylate monomer
polymerization by addition of mannich products
    15.
    发明授权
    Enhancement of aromatic amine inhibition of acrylate monomer polymerization by addition of mannich products 失效
    通过加入甘露醇产物增强芳香胺抑制丙烯酸酯单体聚合

    公开(公告)号:US4912247A

    公开(公告)日:1990-03-27

    申请号:US299484

    申请日:1989-01-19

    申请人: Paul V. Roling

    发明人: Paul V. Roling

    IPC分类号: C07C67/62 C07C253/32

    CPC分类号: C07C253/32 C07C67/62

    摘要: A composition and method of use for inhibiting the polymerization of acrylate esters during elevated temperature processing and during storage and handling thereafter.It comprises the combination of a Mannich reaction product, which is prepared from a substituted phenol, an aldehyde and ethylenediamine, and either phenylenediamine or derivatives thereof and/or phenothiazine or derivatives thereof.

    摘要翻译: 用于抑制丙烯酸酯在高温处理期间以及之后的储存和处理期间聚合的组合物和方法。 它包括由取代的酚,醛和乙二胺以及苯二胺或其衍生物和/或吩噻嗪或其衍生物制备的曼尼希反应产物的组合。

    Polymerization catalyst
    16.
    发明授权
    Polymerization catalyst 失效
    聚合催化剂

    公开(公告)号:US4435518A

    公开(公告)日:1984-03-06

    申请号:US444287

    申请日:1982-11-24

    CPC分类号: C08F10/00 Y10S526/901

    摘要: Catalyst compositions which are particularly useful for the preparation of ethylene polymers having a narrow molecular weight distribution are obtained by (1) drying an inorganic oxide having surface hydroxyl groups, e.g., silica, alumina, magnesia, etc., to remove adsorbed water, (2) reacting the surface hydroxyl groups with at least a stoichiometric amount of an organometallic compound having at least one alkyl group attached to a Group III metal, e.g., a trialkylaluminum, (3) reacting the thus-treated inorganic oxide with a vanadium halide, such as (a) VOCl.sub.3, VOBr.sub.3, and/or mono-, di-, and/or trihydrocarbyloxy derivatives thereof and/or (b) VCl.sub.4, VBr.sub.4, and/or mono-, di-, tri-, and/or tetrahydrocarbyloxy derivatives thereof, and (4) reacting that reaction product with at least about 0.1 mol, per mol of organometallic compound, of an alcohol containing 1 to 18 carbon atoms.

    摘要翻译: 特别可用于制备具有窄分子量分布的乙烯聚合物的催化剂组合物通过以下方法获得:(1)干燥具有表面羟基的无机氧化物,例如二氧化硅,氧化铝,氧化镁等,以去除吸附的水( 2)使表面羟基与至少一种化学计量量的具有至少一个与III族金属连接的烷基的有机金属化合物反应,例如三烷基铝,(3)使经过处理的无机氧化物与卤化钒反应, 例如(a)VOCl 3,VOBr 3和/或其单 - ,二 - 和/或三氢氧羰基衍生物和/或(b)VCl4,VBr4和/或单 - ,二 - ,三 - 和/ 其衍生物,和(4)使该反应产物与每摩尔有机金属化合物至少约0.1摩尔含有1至18个碳原子的醇反应。

    Inhibition of pyrophoric iron sulfide activity
    17.
    发明授权
    Inhibition of pyrophoric iron sulfide activity 失效
    抑制自发硫化铁活性

    公开(公告)号:US06328943B1

    公开(公告)日:2001-12-11

    申请号:US09112882

    申请日:1998-07-09

    IPC分类号: C01B1716

    CPC分类号: C01G49/12

    摘要: Methods for inhibiting pyrophoric iron sulfide activity are disclosed. Methods are disclosed for inhibiting the sulfidation of iron oxides to iron sulfides and/or the oxidation of iron sulfide to inhibit pyrophoric activity. The methods comprise contacting iron oxides and/or iron sulfide with a liquid, solution, aerosol, or gaseous inhibitor comprising alkylamines, arylamines, imines; oxygen-containing compounds such as alcohols, aldehydes, esters, acids and ketones; mixed nitrogen-containing and oxygen-containing compounds such as alkanolamines, non-polymeric amides, hydroxylamines, Mannich products, polyisobutylenesuccinimides, oximes; sulfur-containing compounds and phosphorus-containing compounds.

    摘要翻译: 公开了抑制自发性硫化铁活性的方法。 公开了用于抑制铁氧化物硫化成铁硫化物和/或硫化铁的氧化以抑制发火活性的方法。 所述方法包括使铁氧化物和/或硫化铁与包含烷基胺,芳基胺,亚胺的液体,溶液,气溶胶或气体抑制剂接触; 含氧化合物如醇,醛,酯,酸和酮; 混合的含氮和含氧化合物如烷醇胺,非聚合酰胺,羟胺,曼尼希产品,聚异丁烯琥珀酰亚胺,肟; 含硫化合物和含磷化合物。

    Methods and compositions for inhibiting acrylic acid polymerization
    19.
    发明授权
    Methods and compositions for inhibiting acrylic acid polymerization 失效
    用于抑制丙烯酸聚合的方法和组合物

    公开(公告)号:US5221764A

    公开(公告)日:1993-06-22

    申请号:US837519

    申请日:1992-02-18

    申请人: Paul V. Roling

    发明人: Paul V. Roling

    IPC分类号: C07C67/62

    CPC分类号: C07C67/62

    摘要: Methods and compositions are provided for inhibiting the polymerization of acrylic acid monomers during elevated temperature processing thereof or during storage or shipment of acrylic acid product. The compositions comprise a combination of a cerium source compound and an aromatic amine compound. The methods comprise adding from about 1 to about 10,000 parts per million to the particular acrylic acid containing medium for which such polymerization inhibition is desired, per million parts of the acrylic acid medium.

    摘要翻译: 提供了用于在高温处理过程中或在丙烯酸产品的储存或运输过程中抑制丙烯酸单体聚合的方法和组合物。 组合物包含铈源化合物和芳族胺化合物的组合。 该方法包括每百万份丙烯酸介质中加入约1至约10,000份/百万份至需要这种聚合抑制的特定含丙烯酸的培养基。

    Phosphorus derivatives of polyalkenylsuccinimides and methods of use
thereof
    20.
    发明授权
    Phosphorus derivatives of polyalkenylsuccinimides and methods of use thereof 失效
    聚链烯基琥珀酰亚胺的磷衍生物及其使用方法

    公开(公告)号:US5139643A

    公开(公告)日:1992-08-18

    申请号:US668548

    申请日:1991-03-13

    IPC分类号: C10G9/16

    CPC分类号: C10G9/16 Y10S585/95

    摘要: Phosphorus derivatives of polyalkenylsuccinimides and methods of use of such derivatives as antifoulants in liquid hydrocarbonaceous mediums, such as crude oil, during processing at elevated temperatures are disclosed. The derivatives are formed via reaction of a polyalkenylsuccinimide intermediate with formaldehyde and a phosphorus compound having at least one acidic hydrogen P--H bond. The intermediate is first formed via reaction of polyalkenylsuccinic anhydride and polyamine.

    摘要翻译: 公开了聚链烯基琥珀酰亚胺的磷衍生物和在液体烃类介质(如原油)中在高温加工过程中使用这些衍生物作为防污剂的方法。 衍生物通过聚烯基琥珀酰亚胺中间体与甲醛和具有至少一个酸性氢P-H键的磷化合物的反应形成。 中间体首先通过聚烯基琥珀酸酐和多胺的反应形成。