Catalyst recovery process
    1.
    发明授权
    Catalyst recovery process 有权
    催化剂回收过程

    公开(公告)号:US09061276B2

    公开(公告)日:2015-06-23

    申请号:US13639577

    申请日:2011-05-31

    Abstract: The present invention relates to a method for recovering lanthanoid catalyst from the preparation of aspartic acid diethoxy succinate comprising contacting a carbonate source with a solution containing lanthanoid ions derived from said preparation and a chelating agent different from aspartic acid diethoxy succinate to precipitate lanthanoid carbonate followed by separating the precipitated lanthanoid carbonate from the solution.

    Abstract translation: 本发明涉及从天冬氨酸二乙氧基琥珀酸盐的制备中回收镧系元素催化剂的方法,包括使碳酸盐源与含有源自所述制剂的镧系离子的溶液和不同于天冬氨酸二乙氧基琥珀酸盐的螯合剂接触以沉淀镧系元素,接着是 将沉淀的镧系元素碳酸盐与溶液分离。

    METHOD FOR RECOVERY OF ORGANIC ACID FROM DILUTE AQUEOUS SOLUTION
    2.
    发明申请
    METHOD FOR RECOVERY OF ORGANIC ACID FROM DILUTE AQUEOUS SOLUTION 审中-公开
    从稀释水溶液中回收有机酸的方法

    公开(公告)号:US20130331601A1

    公开(公告)日:2013-12-12

    申请号:US13992343

    申请日:2011-12-09

    Abstract: The present invention relates to a method and an arrangement for recovery of at least one organic acid from a dilute aqueous solution thereof. In this method a complex between said organic acid and an extractant is formed by contacting the solution with a reactive extractant and dissolving the formed complex into said extractant thus forming an extractant phase. The organic acid is removed from the formed complex by esterification using an alcohol.

    Abstract translation: 本发明涉及一种从其稀水溶液中回收至少一种有机酸的方法和装置。 在该方法中,通过使溶液与反应性提取剂接触并将形成的络合物溶解在所述萃取剂中形成萃取相,形成所述有机酸和萃取剂之间的络合物。 使用醇通过酯化从形成的络合物中除去有机酸。

    Starch esterification method
    3.
    发明申请
    Starch esterification method 审中-公开
    淀粉酯化法

    公开(公告)号:US20070073051A1

    公开(公告)日:2007-03-29

    申请号:US10566975

    申请日:2004-09-10

    CPC classification number: C08J3/096 C08B31/04 C08J2303/02 Y02P20/542

    Abstract: The invention relates to a method for preparing an organic starch ester. The method comprises mixing a starch material with an ionic liquid solvent to dissolve the starch, and then treating the dissolved starch with an organic esterifying agent to form an organic starch ester, and subsequently separating the organic starch ester from the solution. Microwave irradiation and/or pressure can be applied to assist in dissolution and esterification.

    Abstract translation: 本发明涉及一种制备有机淀粉酯的方法。 该方法包括将淀粉材料与离子液体溶剂混合以溶解淀粉,然后用有机酯化剂处理溶解的淀粉以形成有机淀粉酯,随后将有机淀粉酯与溶液分离。 可以施加微波照射和/或压力以帮助溶解和酯化。

    Methods for the preparation of an N-bis-[2-(1,2-dicarboxy-ethoxy)-ethyl]amine derivative and products of the methods and their uses
    4.
    发明授权
    Methods for the preparation of an N-bis-[2-(1,2-dicarboxy-ethoxy)-ethyl]amine derivative and products of the methods and their uses 失效
    制备N-双 - [2-(1,2-二羧基 - 乙氧基) - 乙基]胺衍生物的方法及其用途的产物

    公开(公告)号:US06590120B1

    公开(公告)日:2003-07-08

    申请号:US09623727

    申请日:2000-09-08

    Abstract: Methods for the preparation of an N-alkyl-N-bis-(2-( 1,2-dicarboxy-ethoxy)-ethyl)-amine derivative are described, products of the methods as well as uses of the products. The derivative is prepared by reacting an alkali or earth alkali metal salt of maleic acid with an N-substituted diethanolamine, the reaction taking place with the two ethanol groups of the diamine while the substituent group bound to the N atom remains unaffected, or alternatively by first reacting diethanolamine with an alkali or earth alkali metal salt of maleic acid to yield N-bis-(2-(1,2-dicarboxy-ethoxy)-ethyl)-amine, which is then reacted with a substitution reagent to obtain the final product. The derivative is useful as chelating agents, e.g., in the bleaching of chemical or mechanical pulp or in textile bleaches containing hydrogen peroxide or a peracid, or as a calcium binder in detergents and cleaning agents.

    Abstract translation: 描述了N-烷基-N-双 - (2-(1,2-二羧基 - 乙氧基) - 乙基) - 胺衍生物的制备方法,该方法的产物以及产物的用途。 该衍生物通过使马来酸的碱金属或碱土金属盐与N-取代的二乙醇胺反应制备,反应与二胺的两个乙醇基发生,而与N原子结合的取代基保持不受影响,或者替代地, 首先使二乙醇胺与马来酸的碱金属或碱土金属盐反应,得到N-双 - (2-(1,2-二羧基 - 乙氧基) - 乙基) - 胺,然后与取代试剂反应,得到最终 产品。 该衍生物可用作螯合剂,例如漂白化学或机械纸浆或在含有过氧化氢或过酸的织物漂白剂中,或作为洗涤剂和清洁剂中的钙粘合剂。

    Process for the preparation of peroxy acids
    5.
    发明授权
    Process for the preparation of peroxy acids 有权
    过氧酸的制备方法

    公开(公告)号:US08828910B2

    公开(公告)日:2014-09-09

    申请号:US12066686

    申请日:2006-09-13

    Abstract: The present invention relates to a process for the preparation of a solution comprising a first peroxy acid comprising performic acid and a second peroxy acid, said process comprising forming a carboxylic acid solution comprising a first carboxylic acid comprising formic acid, a second carboxylic acid and hydrogen peroxide, wherein the amount of formic acid is from 0.5 to 20% by weight of the amount of the second carboxylic acid, and allowing the components to react to form a solution comprising performic acid and said second peroxy acid, the amount of peroxy acids being at least 5% by weight. The invention also relates to a storable solution comprising performic acid and said second peroxy acid. The solution can be used as a disinfecting agent for controlling micro-organisms.

    Abstract translation: 本发明涉及一种制备溶液的方法,所述溶液包含包含甲酸和第二过氧酸的第一过氧酸,所述方法包括形成羧酸溶液,所述羧酸溶液包含含有甲酸,第二羧酸和氢的第一羧酸 过氧化物,其中甲酸的量为第二羧酸的量的0.5至20重量%,并且使组分反应以形成包含甲酸和所述第二过氧酸的溶液,过氧酸的量为 至少5重量%。 本发明还涉及包含甲酸和所述第二过氧酸的可储存溶液。 该溶液可用作控制微生物的消毒剂。

    METHOD FOR REDUCTION OF LIGHT-INDUCED YELLOWING OF LIGNIN-CONTAINING MATERIAL
    6.
    发明申请
    METHOD FOR REDUCTION OF LIGHT-INDUCED YELLOWING OF LIGNIN-CONTAINING MATERIAL 审中-公开
    减少含有木质素的材料的光诱导黄铜的方法

    公开(公告)号:US20110263836A1

    公开(公告)日:2011-10-27

    申请号:US12989136

    申请日:2009-04-17

    CPC classification number: D21C9/005 D21H21/143

    Abstract: A method for treating lignin-containing fibrous material to reduce its susceptibility to yellowing generally includes enzymatically stabilizing the lignin of the material with an oxidizing agent capable of oxidizing phenolic or similar groups, which may undergo reactions conductive to the formation of colored sites on the fibers, and treating the material with a fluorescent whitening agent. Also disclosed are lignin-containing materials obtained by the method.

    Abstract translation: 用于处理含木质素的纤维材料以降低其对变黄的敏感性的方法通常包括用能够氧化酚类或类似基团的氧化剂来酶促稳定材料的木质素,其可能经历导致纤维上着色位点形成的反应 ,并用荧光增白剂处理该材料。 还公开了通过该方法获得的含木质素的材料。

    Method for preparing a cellulose ether
    7.
    发明申请
    Method for preparing a cellulose ether 审中-公开
    纤维素醚的制备方法

    公开(公告)号:US20070112185A1

    公开(公告)日:2007-05-17

    申请号:US10581491

    申请日:2004-12-02

    CPC classification number: C08B11/00 C08B11/04 C08B11/12 Y02P20/542

    Abstract: The invention relates to a method for preparing a cellulose ether. The method comprises mixing cellulose with an ionic liquid solvent to dissolve the cellulose, and then treating the dissolved cellulose with an etherifying agent in the presence of an inorganic base to form a cellulose ether, and subsequently separating the cellulose ether from the solution, wherein both the dissolution and the etherification are carried out in the absence of an organic base and in the substantial absence of water. Microwave irradiation and/or pressure can be applied to assist in dissolution and etherification.

    Abstract translation: 本发明涉及一种制备纤维素醚的方法。 该方法包括将纤维素与离子液体溶剂混合以溶解纤维素,然后在无机碱存在下用醚化剂处理溶解的纤维素以形成纤维素醚,随后将纤维素醚与溶液分离,其中两者 溶解和醚化在没有有机碱的情况下进行,并且在基本上不存在水的情况下进行。 可以施加微波照射和/或压力以帮助溶解和醚化。

    Hydrogenation of a working solution in a hydrogen peroxide production process
    8.
    发明授权
    Hydrogenation of a working solution in a hydrogen peroxide production process 有权
    在过氧化氢生产过程中氢化工作溶液

    公开(公告)号:US06749727B2

    公开(公告)日:2004-06-15

    申请号:US10096591

    申请日:2002-03-14

    Abstract: A method of hydrogenating alkyl anthraquinones and/or alkyl hydroanthraquinones to alkyl anthrahydroquinones and/or alkyl hydroanthrahydroquinones is disclosed. The reaction is carried out in the presence of a catalyst under electromagnetic irradiation, such as microwave irradiation. The invention further relates to a method of hydrogenating a working solution in a hydrogen peroxide production process, wherein the working solution contains alkyl anthraquinones and/or alkyl hydroanthraquinones dissolved in at least one solvent to convert the quinines to the corresponding alkyl anthrahydroquinones and/or alkyl hydroanthrahydroquinones, where the reaction is carried out in the presence of a catalyst under electromagnetic irradiation such as microwave irradiation.

    Abstract translation: 公开了将烷基蒽醌和/或烷基氢蒽醌氢化成烷基蒽氢醌和/或烷基氢醌氢醌的方法。 反应在电磁辐射如微波照射下在催化剂存在下进行。 本发明还涉及一种在过氧化氢生产方法中氢化工作溶液的方法,其中工作溶液含有溶解在至少一种溶剂中的烷基蒽醌和/或烷基氢蒽醌,以将奎宁转化为相应的烷基蒽氢醌和/或烷基 氢醌,其中反应在电磁辐射如微波照射下在催化剂存在下进行。

    Bleaching of chemical pulp and treatment with a chelating agent
    9.
    发明授权
    Bleaching of chemical pulp and treatment with a chelating agent 失效
    漂白化学纸浆和用螯合剂处理

    公开(公告)号:US06331192B1

    公开(公告)日:2001-12-18

    申请号:US09554331

    申请日:2000-06-30

    CPC classification number: D21C9/16 D21C9/1042 D21C9/1057 D21C9/14

    Abstract: The invention relates to a process for the bleaching of chemical pulp, wherein the pulp is delignified and/or bleached with chlorine dioxide or with a combination of chlorine dioxide and a per-compound, and additionally the pulp is chelated in order to bind heavy metals, such as Fe, Mn and/or Cu, to a chelate complex. The chelate complex is selected from the group made up of N-bis-[(1,2-dicarboxylethoxy)-ethyl]-amine, N-bis[(1,2-dicarboxylethoxy)-ethyl]-aspartic acid and N-tris-[(1,2-dicarboxylethoxy)-ethyl]-amine, and the alkali metal and earth-alkali metal salts of these, and the chelating treatments are carried out simultaneously by combining the chelating chemical with the pulp in the same bleaching stage as chlorine dioxide.

    Abstract translation: 本发明涉及一种用于漂白化学纸浆的方法,其中纸浆用二氧化氯或二氧化氯和每种化合物的组合进行脱木质素和/或漂白,另外纸浆被螯合以结合重金属 ,如Fe,Mn和/或Cu,与螯合络合物。 螯合络合物选自N-双 - [(1,2-二羧基乙氧基) - 乙基] - 胺,N-双[(1,2-二羧基乙氧基) - 乙基] - 天冬氨酸和N-三 - [(1,2-二羧基乙氧基) - 乙基] - 胺,以及这些的碱金属和碱土金属盐,螯合处理通过将螯合化学品与纸浆在同一漂白阶段 二氧化氯。

    POLYMER PRODUCT AND THE USE OF THE SAME AS DISPERSING AGENT
    10.
    发明申请
    POLYMER PRODUCT AND THE USE OF THE SAME AS DISPERSING AGENT 有权
    聚合物产品及其作为分散剂的用途

    公开(公告)号:US20140194564A1

    公开(公告)日:2014-07-10

    申请号:US14123564

    申请日:2012-06-15

    Abstract: The invention relates to a polymer product obtained by polymerization of i) at least one monomer selected from N-vinylformamide and vinyl acetate, and ii) maleic anhydride to give a copolymer comprising N-vinylformamide and/or vinyl acetate and maleic anhydride followed by hydrolyzing formamide groups originating from N-vinylformamide to amino groups and/or acetate groups originating from vinyl acetate to hydroxyl groups and acid anhydride to dicarboxylic acid groups to give a water-soluble copolymer comprising amine and/or hydroxyl and carboxyl groups, wherein the molar ratio of the N-vinylformamide and/or vinyl acetate monomer to the maleic anhydride monomer is from 70:30 to 30:70. The polymer product can be used as a dispersing agent or as a scale inhibiting agent.

    Abstract translation: 本发明涉及通过i)至少一种选自N-乙烯基甲酰胺和乙酸乙烯酯的单体和ii)马来酸酐得到包含N-乙烯基甲酰胺和/或乙酸乙烯酯和马来酸酐的共聚物,然后水解 源自N-乙烯基甲酰胺的甲酰胺基团从源自乙酸乙烯酯的氨基和/或乙酸酯基团转化成羟基并将酸酐转化成二羧酸基团,得到包含胺和/或羟基和羧基的水溶性共聚物,其中摩尔比 的N-乙烯基甲酰胺和/或乙酸乙烯酯单体的摩尔比为70:30至30:70。 聚合物产物可以用作分散剂或作为阻垢剂。

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