利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

31 条记录 (耗时 0.022 秒)

    Cross-linked polyaminocarboxylates for the removal of metal ions from aqueous solutions
    4.
    发明授权
    Cross-linked polyaminocarboxylates for the removal of metal ions from aqueous solutions 有权
    用于从水溶液中除去金属离子的交联聚氨基羧酸盐

    公开(公告)号：US08895633B2

    公开(公告)日：2014-11-25

    申请号：US13784750

    申请日：2013-03-04

    申请人： King Fahd University of Petroleum and Minerals

    发明人： Othman Charles Sadeq Othman Al Hamouz ,  Shaikh Asrof Ali ,  Nouri Mohammed Hassan

    IPC分类号： C08F226/04 ,  C08F226/06 ,  C08F26/06

    CPC分类号： C08F26/06

    摘要： The cross-linked polyaminocarboxylates for the removal of metal ions from aqueous solutions of the present invention are cross-linked anionic polyelectrolytes CAPE 6 and CAPE 9, containing pH-responsive amino acid residues. The cross-linked anionic polyelectrolytes have been synthesized via cycloco-polymerization and ter-polymerization of a diallylammonioethanoate monomer (90 mol %) and a cross-linker, 1,1,4,4-tetraallylpiperazinium dichloride (10 mol %) in the absence of SO2 (CAPE 6) and in the presence of SO2 (CAPE 9), respectively. For the sorbents CAPE 6 and CAPE 9, the efficiency of Cu2+ removal at an initial metal concentration of 200 ppb was found to be 77.5% and 99.4%, respectively. Treatment of real wastewater samples spiked with Cu2+ ions showed the excellent ability of the cross-linked anionic polyelectrolytes to adsorb metal ions.

    摘要翻译： 用于从本发明的水溶液中除去金属离子的交联聚氨基羧酸盐是含有pH响应性氨基酸残基的交联阴离子聚电解质CAPE 6和CAPE 9。 交联的阴离子聚电解质是通过二烯丙基氨基乙酸酯单体（90mol％）和交联剂1,1,4,4-四烯丙基哌嗪二氯化物（10mol％）在不存在的情况下的环共聚合和三元共聚合成的 的SO2（CAPE 6）和SO 2（CAPE 9）的存在下。 对于吸附剂CAPE 6和CAPE 9，初始金属浓度为200 ppb时Cu2 +去除效率分别为77.5％和99.4％。 处理掺有Cu2 +离子的真实废水样品显示出交联阴离子聚电解质吸附金属离子的优异能力。

    Poly(zwitterion-alt-sulfur dioxide) copolymer
    5.
    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）。

    Aqueous two-phase systems
    6.
    发明授权
    Aqueous two-phase systems 有权
    水相两相体系

    公开(公告)号：US09169379B2

    公开(公告)日：2015-10-27

    申请号：US13942635

    申请日：2013-07-15

    申请人： KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

    发明人： Shaikh Asrof Ali

    IPC分类号： C08L29/04

    CPC分类号： C08L29/04

    摘要： The aqueous two phase systems (ATPS) contain partly urethanized PVA (polyvinyl alcohol) and hydrophobically modified cyclocopolymers formed from the monomers diallylammonioethanoate, 0-3 mol % dodecyldiallylammonium chloride and sulphur dioxide, the copolymers having varying proportions of polybetaine (PB) and anionic polyelectrolyte (APE) fractions. The aqueous two-phase systems are useful in the separation and purification of biomaterials.

    摘要翻译： 水性两相体系（ATPS）含有部分由氨基甲酸酯化的PVA（聚乙烯醇）和由二烯丙基氨基乙酸酯，0-3mol％十二烷基二烯丙基氯化铵和二氧化硫形成的疏水改性的环状共聚物，所述共聚物具有不同比例的聚甜菜碱（PB）和阴离子聚电解质 （APE）级分。 水相两相体系可用于生物材料的分离和纯化。

    Cross-linked polyaminomethyldiphosphonate for the removal of metal ions from wastewater
    8.
    发明授权
    Cross-linked polyaminomethyldiphosphonate for the removal of metal ions from wastewater 有权
    交联聚氨基甲基二膦酸盐用于从废水中去除金属离子

    公开(公告)号：US09051197B2

    公开(公告)日：2015-06-09

    申请号：US14022205

    申请日：2013-09-09

    申请人： KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

    发明人： Othman Charles Sadeq Othman Al Hamouz ,  Shaikh Asrof Ali

    IPC分类号： C02F1/42 ,  C08F26/06 ,  C08G75/20

    CPC分类号： C02F1/42 ,  C02F2001/422 ,  C02F2001/425 ,  C02F2101/163 ,  C02F2101/20 ,  C08F230/02 ,  C08F226/04

    摘要： The cross-linked polyaminodiphosphonate for the removal of metal ions from wastewater is a cross-linked anionic polyelectrolyte synthesized via cyclocopolymerization of diallylaminomethyldiphosphonic acid and 1,1,4,4-tetraallylpiperazinium dichloride (10 mol %), a cross-linker, in the presence of tert-butylhydroperoxide in aqueous solution at 85° C., followed by treatment with NaOH. The cross-linked polyaminodiphosphonate may be used to remove copper and cadmium ions from wastewater. The adsorption process is spontaneous and endothermic in nature, with negative and positive values for ΔG and ΔH, respectively. The efficiency of Cu2+ and Cd2+ removal by the cross-linked polyaminodiphosphonate was found to be 96.8% and 93.8%, respectively.

    摘要翻译： 用于从废水中去除金属离子的交联聚氨基二膦酸盐是通过二烯丙基氨基甲基二膦酸和1,1,4,4-四烯丙基哌嗪二氯化物（10mol％）的交联聚合合成的交联阴离子聚电解质，交联剂在 在85℃在水溶液中存在叔丁基过氧化氢，然后用NaOH处理。 交联聚氨基二膦酸盐可用于从废水中除去铜和镉离子。 吸附过程本质上是自发和吸热的，分别为＆Dgr; G和＆Dgr; H的负值和正值。 通过交联聚氨基二膦酸盐去除Cu2 +和Cd2 +的效率分别为96.8％和93.8％。

    Cross-linked polyzwitterion/anion for the removal of strontium from aqueous solutions
    9.
    发明授权
    Cross-linked polyzwitterion/anion for the removal of strontium from aqueous solutions 有权
    用于从水溶液中去除锶的交联聚两性离子/阴离子

    公开(公告)号：US08937104B2

    公开(公告)日：2015-01-20

    申请号：US13873080

    申请日：2013-04-29

    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 ,  C08G75/20

    CPC分类号： C08G75/205 ,  C08G75/20

    摘要： The cross-linked polyzwitterion/anion for the removal of strontium from aqueous solutions is a polyzwitterion having the following structure: and the corresponding anion formed by treating the polyzwitterion with a base, e.g., sodium hydroxide. The cross-linked polyzwitterion/anion (CPZA) was prepared using Butler's cyclopolymerization protocol. The CPZA resin was found to have a very good adsorption capacity for Sr2+ ions at low concentrations. The relatively strong rapid initial adsorption of 83% Sr2+ ions was followed by slower adsorption of the remaining 17%, which was described by an intraparticle diffusion model. The adsorption followed the Lagergren second-order kinetic model, and Temkin as well as Freundlich isotherm models. The negative ΔGs and ΔH ensured the spontaneity and the exothermic nature of the adsorption process. The excellent adsorption and desorption efficiencies implied the efficacy of the resin in removing (as well as recovering) the metal ions from aqueous solution.

    摘要翻译： 用于从水溶液中除去锶的交联聚两性离子/阴离子是具有以下结构的聚两性离子：和通过用碱例如氢氧化钠处理多分解离子形成的相应的阴离子。 交联聚两性离子/阴离子（CPZA）使用Butler的环聚合方案制备。 发现CPZA树脂在低浓度下对Sr2 +离子具有非常好的吸附能力。 83％Sr2 +离子的相对强烈的快速初始吸附之后是剩余的17％的较慢的吸附，其通过颗粒内扩散模型描述。 吸附遵循Lagergren二阶动力学模型，Temkin以及Freundlich等温线模型。 消极的和Dgr; Gs和＆Dgr; H确保了吸附过程的自发性和放热性质。 优异的吸附和解吸效率意味着树脂从水溶液中除去（以及回收）金属离子的功效。