Foam control formulations
    31.
    发明授权

    公开(公告)号:US10293279B2

    公开(公告)日:2019-05-21

    申请号:US14399342

    申请日:2013-05-10

    申请人: RHODIA OPERATIONS

    摘要: The invention provides a foam control formulation in the form of a microemulsion, the formulation comprising: (a) from 5 to 70% w/w of primary surfactant, this surfactant having an HLB of from 1 to 12 and/or a cloud point of from 20 to 70° C.; (b) from 2 to 40% w/w of water-insoluble organic carrier liquid; and (c) water. Also provided is the use of this formulation to prevent and/or reduce foam in a fluid system, or as a processing aid to control foam production in a fluid system. The formulation may be used in an aqueous fluid system, such as an oilfield.

    Oil-in-water emulsions
    33.
    发明授权

    公开(公告)号:US09650745B2

    公开(公告)日:2017-05-16

    申请号:US14116577

    申请日:2012-05-09

    IPC分类号: B01D19/04 D21H21/12 D21C3/28

    摘要: The invention relates to oil-in-water emulsions based on fatty alcohols and mono- or diesters of glycerol and the use thereof as antifoams or deaerators for aqueous compositions. The oil phase of the emulsions according to the invention consists to at least 95% by weight of the following constituents: a) 40 to 95% by weight, based on the total weight of the oil phase, of a mixture of at least two alcohols as component A, consisting of: a1) at least one alkanol having 12 to 30 carbon atoms as component A1, a2) at least one mono- or diester of glycerol with at least one fatty acid having 14 to 24 carbon atoms as component A2; b) 0.1 to 10% by weight, based on the total weight of the oil phase, of at least one further component B, which is selected from esters of C12-C36-alkanecarboxylic acids with polyglycerol, amides of C12-C36-alkanecarboxylic acids with alkylenediamines or oligoalkyleneamines, and esters of C12-C36-alkanecarboxylic acids with C12-C36-alkanols, and mixtures thereof, c) 4.9 to 50% by weight, based on the total weight of the oil phase, of at least one further component C, which is selected from organic substances which are liquid at 50° C. and 1013 mbar, at atmospheric pressure have a boiling point above 200° C., and at 25° C. and 1013 mbar have a solubility in water of less than 0.1 g/l.

    Cross-linked glycerol based polymers as digestion aids for improving wood pulping processes
    34.
    发明授权
    Cross-linked glycerol based polymers as digestion aids for improving wood pulping processes 有权
    交联甘油基聚合物作为改进木材制浆工艺的消化助剂

    公开(公告)号:US09416490B2

    公开(公告)日:2016-08-16

    申请号:US13758299

    申请日:2013-02-04

    申请人: NALCO COMPANY

    摘要: The invention provides a method of improving the digestion of wood chips into pulp. The method involves: adding a cross-linked glycerol-based polymer additive to a solution used in the digestion process. This additive is unexpectedly effective at facilitating digestion. The branched and ether structure of the additive allows it to withstand the harsh nature of a high stress environment. In addition, it is more soluble in the harsh condition than other surfactants. The structure, resistance, and particular balance between hydrophobic and hydrophilic regions, causes the additive to increases the interaction between the wood chips and the digestion chemicals. This in turn reduces the costs, the amount of additive needed, and the amount of reject wood chunks that result from the digestion process.

    摘要翻译: 本发明提供了一种改善木屑进入纸浆的消化方法。 该方法包括:将交联的甘油基聚合物添加剂加入到消化过程中使用的溶液中。 这种添加剂在促进消化方面出人意料地有效。 添加剂的支链和醚结构允许其承受高应力环境的苛刻性质。 此外,它比其它表面活性剂在恶劣条件下更易溶。 疏水和亲水区域之间的结构,电阻和特殊的平衡导致添加剂增加了木片与消化化学物质之间的相互作用。 这又降低了成本,所需添加剂的量以及消化过程产生的拒收木块的量。

    Defoaming agent and/or deaerator for aqueous media tending to foam
    35.
    发明授权
    Defoaming agent and/or deaerator for aqueous media tending to foam 有权
    用于水性介质的消泡剂和/或脱气剂倾向于发泡

    公开(公告)号:US07763664B2

    公开(公告)日:2010-07-27

    申请号:US10519405

    申请日:2003-07-16

    摘要: A defoaming agent and/or deaerator for aqueous foamable media based on oil-in-water dispersions. The oil phase contains at least one compound from fatty alcohols, fatty acid monoglycerides, diglycerides, and triglycerides, fatty acid ester of fatty acids and monovalent to trivalent alcohols, 3-thiaalkane-1-ole, 3-thiaoxide alkane-1-ole, 3-thiadioxide-alkane-ole, and thiaalkane esters in combination with (i) at least one polyglycerine that is obtained by esterification of at least 20 percent of polyglycerine with 12 to 36 C carboxylic acid, and (ii) at least one bisamide consisting of ethylene diamine and 10 to 36 C atom carboxylic acids, while the aqueous phase thereof contains at least one stabilizer, water, and an optional thickener, for aqueous media that tend to foam. Also disclosed are methods of controlling foam by adding the dispersions to a process, particularly during cellulose boiling, cellulose washing, grinding of paper pulp, paper production, and dispersion of pigments used for paper production.

    摘要翻译: 一种基于水包油分散体的含水可发泡介质的消泡剂和/或脱气剂。 油相包含至少一种脂肪醇,脂肪酸单甘油酯,甘油二酯和甘油三酸酯,脂肪酸脂肪酸酯和一价至三价醇的化合物,3-硫代烷-1-烯,3-硫氧化物烷-1-醇, 三硫代 - 烷烃 - 烯烃和硫代烷烃酯与(i)至少一种通过至少20%的聚甘油与12至36℃羧酸酯化获得的聚甘油,和(ii)至少一种双酰胺 的乙二胺和10至36C原子的羧酸,而其水相含有至少一种稳定剂,水和任选的增稠剂,用于易于发泡的水性介质。 还公开了通过将分散体加入到方法中,特别是在纤维素沸腾,纤维素洗涤,纸浆研磨,造纸和用于纸张生产的颜料的分散体中来控制泡沫的方法。

    Aqueous dispersions of antifoam agents
    38.
    发明授权
    Aqueous dispersions of antifoam agents 失效
    消泡剂的水性分散体

    公开(公告)号:US5679286A

    公开(公告)日:1997-10-21

    申请号:US535258

    申请日:1995-10-30

    摘要: An aqueous defoaming dispersion having a water phase and a dispersed phase, the dispersed phase containing; (a) from 70 to 98% by weight of fatty alcohols having melting points above 40.degree. C.; and (b) from 2 to 30% by weight of ketones having melting points above 45.degree. C., all weights being based on the weight of the dispersed phase.

    摘要翻译: PCT No.PCT / EP94 / 01208 Sec。 371 1995年10月30日第 102(e)1995年10月30日PCT PCT 1994年4月19日PCT公布。 出版物WO94 / 25137 日期:1994年11月10日具有水相和分散相的水性消泡分散体,分散相含有; (a)70〜98重量%的熔点高于40℃的脂肪醇。 和(b)2至30重量%的熔点高于45℃的酮,所有重量均基于分散相的重量。

    Defoamer composition and method of using the same
    39.
    发明授权
    Defoamer composition and method of using the same 失效
    消泡剂组合物及其使用方法

    公开(公告)号:US5645762A

    公开(公告)日:1997-07-08

    申请号:US704180

    申请日:1996-08-28

    摘要: A defoamer composition made from the reaction product of an epoxide containing composition selected from epoxide fatty acids, epoxide vegetable oils and mixtures thereof and at least one secondary compound selected from the group consisting of fatty acids and alkoxylated derivatives thereof, alkoxylated polyols, alcohols, alkoxylated alcohols, alkylphenols, alkoxylated alkylphenols, alkylamides, alkoxylated alkylamides, acetylenic glycols, alkoxylated acetylenic glycols, polybasic acids, alkylene oxides, organo silicones and polymers thereof, and methods of using the same especially for defoaming black liquor produced in the pulp and paper industry.

    摘要翻译: 由含环氧化物的组合物的选自环氧化物脂肪酸,环氧化植物油及其混合物的反应产物和至少一种选自脂肪酸及其烷氧基化衍生物的二级化合物,烷氧基化多元醇,醇,烷氧基化的消泡剂组合物 醇,烷基酚,烷氧基化烷基酚,烷基酰胺,烷氧基化烷基酰胺,炔二醇,烷氧基化炔二醇,多元酸,环氧烷烃,有机硅氧烷及其聚合物,以及其特别用于纸浆和造纸工业中生产的消除黑液的方法。

    Foam and liquor separator
    40.
    发明授权
    Foam and liquor separator 失效
    泡沫和液体分离器

    公开(公告)号:US4161395A

    公开(公告)日:1979-07-17

    申请号:US890644

    申请日:1978-03-20

    IPC分类号: B01D19/02 D21C3/28

    CPC分类号: D21C3/28 B01D19/02

    摘要: A vacuum receiver comprising a closed top vertical cylindrical tank with a central vacuum takeoff at the top, a tangential downwardly inclined feed conduit in the sidewall, an inverted conical bottom section with anti-swirl baffles therein, and a barometric leg extending downwardly from the apex of the bottom to termination in submergence in a lower seal tank. A conduit is provided to recycle a portion of discharge liquor from the seal tank to the top of the barometric leg. The slope of the conical bottom does not exceed about 40.degree. from the vertical wall and inclination of the inlet conduit is about 15.degree. from horizontal. The barometric leg length and diameter as well as the liquor recycle rate are selected to optimize final liquor discharge rate at prevailing vacuum and foam conditions.

    摘要翻译: 一个真空接收器,包括一个封闭的顶部垂直圆柱形容器,顶部具有中心抽真空,在侧壁中有一个向下倾斜的切向进料导管,其中具有防涡流挡板的倒锥形底部部分,以及从顶点向下延伸的气压 的底部到淹没在下密封罐中的终止。 提供导管以将排出液体的一部分从密封罐再循环到气压支柱的顶部。 锥形底部的斜面距离垂直壁不超过约40°,入口导管的倾斜度与水平面大约为15°。 选择气压腿长度和直径以及液体循环速率来优化当前真空和泡沫条件下的最终液体排出速率。