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    • 1. 发明授权
    • Additive for controlling secondary contaminates
    • 用于控制二次污染物的添加剂
    • US06623658B1
    • 2003-09-23
    • US09667661
    • 2000-09-22
    • Charles William Robinson, Jr.
    • Charles William Robinson, Jr.
    • C02F512
    • B01D17/0202C02F5/125C02F2103/28C02F2209/09Y10S524/922Y10S526/932
    • An additive for controlling the detrimental effects of secondary recycled contaminants in the papermaking process. In the preferred embodiment, the additive includes a first low molecular weight, cationic water-soluble polymer and a second low molecular weight, cationic, water-soluble polymer, wherein the first low molecular weight, cationic, water-soluble polymer and the second low molecular weight, cationic, water-soluble polymer are co-reacted. In the preferred embodiment, the effective amount of the additive is determined by measuring about a 50 PPM reduction in soluble charge of the liquid base after adding the additive to the liquid base. In the most preferred embodiment, the reduction in soluble charge is between about 50 and 150 PPM as measured by determining the electrophoretic mobility of the liquid base with and without the additive. In the preferred embodiment, the first low molecular weight, cationic, water-soluble polymer is a di-ammonium chloride polymer, such as DADMAC, and the second low molecular weight, cationic, water-soluble polymer is a polyacrylamide. The molecular weight of the additive is controlled to be less than about 25,000 cps but greater than about 18,000 cps.
    • 用于控制造纸过程中二次再循环污染物的有害影响的添加剂。 在优选实施方案中,添加剂包括第一低分子量阳离子水溶性聚合物和第二低分子量阳离子水溶性聚合物,其中第一低分子量阳离子水溶性聚合物和第二低分子量阳离子水溶性聚合物 分子量,阳离子,水溶性聚合物共同反应。 在优选的实施方案中,添加剂的有效量通过在将添加剂添加到液体基质中之后测量液体碱的可溶性电荷约50PPM的降低来确定。 在最优选的实施方案中,通过测定具有和不具有添加剂的液体基质的电泳迁移率测量,可溶性电荷的降低为约50至150PPM。 在优选的实施方案中,第一低分子量阳离子水溶性聚合物是二氯化铵聚合物,例如DADMAC,第二低分子量阳离子水溶性聚合物是聚丙烯酰胺。 添加剂的分子量控制在小于约25,000cps但大于约18,000cps。
    • 2. 发明授权
    • Chemical composition for treatment of nitrate and odors from water streams and process wastewater treatment
    • 用于处理来自水流的硝酸盐和气味的化学成分和工艺废水处理
    • US06716366B2
    • 2004-04-06
    • US09904547
    • 2001-07-16
    • John J. Waldmann
    • John J. Waldmann
    • C02F512
    • C02F1/5245C02F1/56C02F1/66C02F2103/26C02F2209/06Y10S210/903Y10S210/925
    • Novel compositions are described for use in nitrate removal and treatment of water such as water and wastewater streams produced by processes in mining operations, agriculture industries operations, industrial operations, military operations, etc. These novel compositions are also useful for the treatment of water and wastewater streams associated with the running of industries and with the production and maintenance of livestock. Advantages of these novel compositions include use of them without need for pH adjustment and/or the presence of electropositive metals, inorganic acid, or alkaline compounds. One embodiment of these novel compositions comprises: (1) a sufficient amount of organic modified clay, (2) a highly crosslinked carbohydrate polymer with branched-chain structure containing sulfide and/or disulfide groups, or an alloy or blend of such a polymer with triazine-trithione sodium salt, (3) high swelling sodium bentonite or calcium bentonite, and (4) activated carbon.
    • 描述了新的组合物用于硝酸盐去除和处理水,例如由采矿作业,农业行业,工业操作,军事作业等过程产生的水和废水。这些新型组合物也可用于处理水和 与行业运行相关的废水流和牲畜的生产和维护。 这些新型组合物的优点包括使用它们,而不需要pH调节和/或正电性金属,无机酸或碱性化合物的存在。 这些新型组合物的一个实施方案包括:(1)足够量的有机改性粘土,(2)具有含硫化物和/或二硫化物基团的支链结构的高度交联的碳水化合物聚合物,或这种聚合物与 三嗪 - 三硫代钠盐,(3)高膨胀钠膨润土或钙膨润土,和(4)活性炭。
    • 3. 发明授权
    • Grafted polymer and its production process and use
    • 接枝聚合物及其生产工艺和用途
    • US06447696B1
    • 2002-09-10
    • US09618276
    • 2000-07-18
    • Masahito TakagiShigeru Yamaguchi
    • Masahito TakagiShigeru Yamaguchi
    • C02F512
    • C11D3/3776C08F283/00C08F283/06C08L51/08C08L71/02C23F11/173C23F14/02C08L2666/02C08L2666/04C08L2666/24
    • The present invention provides: a novel grafted polymer which has good hydrophilicity and is excellent in the adsorbency and the dispersibility; and a scale inhibitor and a detergent additive, both of which involve the use of this grafted polymer. The grafted polymer is obtained by a production process comprising the steps of: polymerizing an alkylene oxide component with an ethylene oxide content of at least 50 mol % to obtain a polyether compound (A) having a number-average molecular weight of not lower than 200; and graft-polymerizing a graft component (B) onto the resultant polyether compound (A) in a specific ratio, wherein the graft component (B) includes N-vinylpyrrolidone (b1) as an essential component and might further include a monoethylenically unsaturated monomer (b2), wherein when the monomer (b2) includes a carboxyl-group-containing monoethylenically unsaturated monomer (b2-1) including a monomer having a structure formable into a carboxylic acid (or salt) by hydrolysis, the resultant polymer is hydrolyzed such that not less than 50 mol % of all structural units as derived from the monomer (b2-1) can have a carboxyl group. The resultant grafted polymer is used for the scale inhibitor and the detergent additive.
    • 本发明提供:亲水性好,吸附性和分散性优异的新型接枝聚合物, 以及阻垢剂和洗涤剂添加剂,它们都涉及使用该接枝聚合物。 通过包括以下步骤的制备方法获得接枝聚合物:使环氧乙烷含量为至少50摩尔%的环氧烷组分聚合,得到数均分子量不低于200的聚醚化合物(A) ; 和接枝组分(B)以特定的比例将得到的聚醚化合物(A)接枝聚合,其中接枝组分(B)包括N-乙烯基吡咯烷酮(b1)作为主要组分,并且还可以包括单烯属不饱和单体 b2),其中当单体(b2)包含含羧基的单烯属不饱和单体(b2-1)时,包括具有通过水解形成羧酸(或盐)结构的单体的单体,所得聚合物被水解,使得 从单体(b2-1)衍生的所有结构单元的摩尔%不小于50mol%可以具有羧基。 所得的接枝聚合物用于防垢剂和洗涤剂添加剂。
    • 7. 发明授权
    • Method for recovering and separating metals from waste streams
    • 从废物流中回收和分离金属的方法
    • US06797195B1
    • 2004-09-28
    • US08948273
    • 1997-10-09
    • Lawrence Kreisler
    • Lawrence Kreisler
    • C02F512
    • C02F9/00C02F1/32C02F1/5236C02F1/54C02F1/66C02F1/683C02F1/70C02F1/72C02F2101/006C02F2101/20C02F2101/30C02F2209/04Y10S210/912
    • A method for recovering and separating precious and non-precious metals from waste streams, which removes, separates, and recovers such metals in a cost effective manner with more than 95% removed from waste streams and with minimal amounts of unprocessed solids and sludge remaining in the environment. Metals such as chromium, manganese, cobalt, nickel, copper, zinc, silver, gold, platinum, vanadium, sodium, potassium, beryllium, magnesium, calcium, barium, lead, aluminum, tin; and the like are removed and recovered from the waste streams with at least 95% removal and other metals and compounds, such as antimony, sulfur, and selenium are removed and recovered from waste streams with at least 50% removal. The method employs a unique complexing agent comprising a carbamate compound and an alkali metal hydroxide which facilitates the formation of the metals into ionic metal particles enabling them to be readily separated, removed and recovered.
    • 一种用于从废物流中回收和分离珍贵和非贵重金属的方法,其以成本有效的方式去除,分离和回收这些金属,其中从废物流中除去95%以上的残留物和少量未处理的固体和污泥 环境。 金属如铬,锰,钴,镍,铜,锌,银,金,铂,钒,钠,钾,铍,镁,钙,钡,铅,铝,锡; 从废物流中除去并从其中回收至少95%的去除物并且除去其余的金属,并且从废物流中除去并回收至少50%去除物质的化合物,例如锑,硫和硒。 该方法采用独特的络合剂,其包含氨基甲酸酯化合物和碱金属氢氧化物,其促进金属形成离子金属颗粒,使得它们能够容易地分离,除去和回收。