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761 条记录 (耗时 0.027 秒)

    Reducing Aluminosilicate Scale in the Bayer Process
    12.
    发明申请
    Reducing Aluminosilicate Scale in the Bayer Process 有权
    在拜耳法中还原铝硅酸盐垢

    公开(公告)号：US20170050861A1

    公开(公告)日：2017-02-23

    申请号：US15346106

    申请日：2016-11-08

    申请人： Nalco Company

    发明人： Everett C. Phillips ,  Timothy La ,  Kailas B. Sawant

    IPC分类号： C01F7/06 ,  C07F7/02 ,  C02F5/12 ,  C01F7/46

    CPC分类号： C01F7/0633 ,  C01F7/0606 ,  C01F7/46 ,  C01F7/47 ,  C02F5/12 ,  C02F2103/16 ,  C07F7/025

    摘要： The invention provides a method of inhibiting the accumulation of DSP scale in the liquor circuit of Bayer process equipment. The method includes adding one or more particular silane based small molecules to the liquor fluid circuit. These scale inhibitors reduce DSP scale formation and thereby increase fluid throughput, increase the amount of time Bayer process equipment can be operational and reduce the need for expensive and dangerous acid washes of Bayer process equipment. As a result, the invention provides a significant reduction in the total cost of operating a Bayer process.

    摘要翻译： 本发明提供了一种抑制拜耳工艺设备液液中DSP垢积累的方法。 该方法包括将一种或多种特定的硅烷基小分子加入到液体流体回路中。 这些阻垢剂可减少DSP垢的形成，从而增加流体的通量，增加拜耳工艺设备可以运行的时间，并减少对拜耳工艺设备昂贵且危险的酸洗液的需求。 结果，本发明大大降低了操作拜耳工艺的总成本。

    SYNERGISTIC CHEMISTRY TO PREVENT SILICATE SCALING
    13.
    发明申请
    SYNERGISTIC CHEMISTRY TO PREVENT SILICATE SCALING 审中-公开
    协调化学防止硅酸盐沉淀

    公开(公告)号：US20170037295A1

    公开(公告)日：2017-02-09

    申请号：US15296960

    申请日：2016-10-18

    申请人： Baker Hughes Incorporated

    发明人： JOHNATHON L. BROOKS ,  TRACEY JACKSON

    IPC分类号： C09K8/528 ,  C02F5/14 ,  C02F5/12

    CPC分类号： C09K8/528 ,  C02F5/12 ,  C02F5/14 ,  C02F2103/02 ,  C02F2103/10 ,  C11D7/36 ,  C11D11/0041

    摘要： Two intermediates that have known separate efficacy for preventing scales such as calcium carbonate, magnesium carbonate and barite (barium sulfate) were discovered to have a synergistic effect for preventing or inhibiting silicate scaling when used together. Each of these intermediates is ineffective at preventing silicate scaling when used alone; however, when used in combination, they have a synergistic benefit. In one non-limiting embodiment the components include a polyamine phosphonate and a lysine tetra(alkylene)phosphonate.

    摘要翻译： 发现已知具有防止鳞片的单独功效的两种中间体，如碳酸钙，碳酸镁和重晶石（硫酸钡），当一起使用时，具有防止或抑制硅酸盐结垢的协同效应。 当单独使用时，这些中间体中的每一种都不能防止硅酸盐结垢; 然而，当组合使用时，它们具有协同效益。 在一个非限制性实施方案中，组分包括聚胺膦酸酯和赖氨酸四（亚烷基）膦酸酯。

    Poly(zwitterion-alt-sulfur dioxide) copolymer
    15.
    发明授权
    Poly(zwitterion-alt-sulfur dioxide) copolymer 有权
    聚（两性离子-alt-二氧化硫）共聚物

    公开(公告)号：US09481590B2

    公开(公告)日：2016-11-01

    申请号：US14091289

    申请日：2013-11-26

    申请人： KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

    发明人： Shaikh Asrof Ali ,  Shamsuddeen Abdullahi Haladu

    IPC分类号： H01M8/10 ,  C02F5/12 ,  C02F103/08

    CPC分类号： C02F5/12 ,  C02F2103/08 ,  C02F2303/22

    摘要： The poly(zwitterion-alt-sulfur dioxide) copolymer includes a structural unit having the structural formula: wherein “n” is the number of repeating units. The copolymer is made by cocyclopolymerizing 3-(N,N-diallyl,N-carboethoxymethylammonio)propanesulfonate with sulfur dioxide to obtain an intermediate polyzwitterion (PZ) copolymer, which is hydrolyzed to form the copolymer. The copolymer may be converted to a poly(electrolyte-zwitterion) by treatment with a base, such as sodium hydroxide.

    摘要翻译： 聚（两性离子 - 二氧化硫）共聚物包括具有以下结构式的结构单元：该共聚物是通过将3-（N，N-二烯丙基，N-乙氧羰基甲基氨基）丙磺酸酯与二氧化硫共聚合得到中间聚两性离子（PZ ）共聚物，其被水解形成共聚物。 共聚物可以通过用碱如氢氧化钠处理而转化为聚（电解质 - 两性离子）。

    MODIFIED AMINES USEFUL AS SCALE INHIBITORS IN WET PROCESS PHOSPHORIC ACID PRODUCTION
    16.
    发明申请
    MODIFIED AMINES USEFUL AS SCALE INHIBITORS IN WET PROCESS PHOSPHORIC ACID PRODUCTION 审中-公开
    改性氨基酸作为湿法处理磷酸生产中的定量抑制剂有用

    公开(公告)号：US20160229725A1

    公开(公告)日：2016-08-11

    申请号：US15041837

    申请日：2016-02-11

    申请人： CYTEC INDUSTRIES INC.

    发明人： Ryan KOPRESKI ,  Lei ZHANG ,  John Carr ,  Roderick RYLES

    IPC分类号： C02F5/08

    CPC分类号： C02F5/12 ,  C01B25/18 ,  C01B25/22 ,  C02F5/10 ,  C02F2103/10

    摘要： Processes for inhibiting scale produced during wet process phosphoric acid production by adding a scale inhibiting amount of a reagent having at least one amine portion including at least one primary amine, and at least one hydrocarbyl portion having an insolubilizing group attached thereto to at least one stage of a wet process phosphoric acid production process are provided herein.

    摘要翻译： 通过添加阻垢剂量的具有至少一个包含至少一个伯胺的胺部分的试剂和至少一个具有不溶性基团的烃基部分连接到至少一个阶段来抑制在湿法磷酸生产期间产生的垢的方法 的湿法磷酸生产方法。

    Preparation of environmentally acceptable scale inhibitors
    19.
    发明授权
    Preparation of environmentally acceptable scale inhibitors 有权
    制备环境可接受的阻垢剂

    公开(公告)号：US09296631B2

    公开(公告)日：2016-03-29

    申请号：US12492825

    申请日：2009-06-26

    申请人： Scot H. Bodnar ,  Henry C. Fisher ,  Andrew Frederick Miles ,  Curtis D. Sitz

    发明人： Scot H. Bodnar ,  Henry C. Fisher ,  Andrew Frederick Miles ,  Curtis D. Sitz

    IPC分类号： C02F5/14 ,  C02F5/12 ,  C02F103/10

    CPC分类号： C02F5/12 ,  C02F5/14 ,  C02F2103/10

    摘要： Alkyl phosphonates prepared from amino acids suitable for use in inhibiting scale. The phosphonates are obtained as reaction mixtures where the level of alkyl phosphonation is deliberately controlled to provide only partial alkyl phosphonation of the amino acid. The resulting alkyl phosphonates exhibit improved environmental properties compared to the fully substituted species, while still exhibiting acceptable efficacy in the control of scale. The compositions possess advantages over existing phosphonates in that they exhibit higher biodegradation by method OECD 306. They also offer lower toxicity to marine life compared to the fully substituted species and are not expected to bioaccumulate.

    摘要翻译： 由适用于抑制结垢的氨基酸制备的烷基膦酸酯。 获得膦酸酯作为反应混合物，其中有意地控制烷基膦酸化的水平以仅提供氨基酸的部分烷基膦酸化。 所得到的烷基膦酸酯与完全取代的物质相比表现出改善的环境性质，同时在控制垢中仍然表现出可接受的功效。 该组合物具有优于现有膦酸盐的优点，因为它们通过方法OECD 306表现出更高的生物降解性。与完全取代的物种相比，它们对海洋生物的毒性较低，并且预期不会生物累积。