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    • 43. 发明申请
    • SYSTEM AND PROCESS FOR THE REMOVAL OF FLUOROCHEMICALS FROM WATER
    • 从水中去除氟化物的系统和方法
    • WO2008101137A1
    • 2008-08-21
    • PCT/US2008/054042
    • 2008-02-15
    • 3M INNOVATIVE PROPERTIES COMPANYMADER, Brian T.,KLUN, Thomas P.,IYER, Suresh S.,
    • MADER, Brian T.,KLUN, Thomas P.,IYER, Suresh S.,
    • C02F1/42B01J41/04
    • C02F1/42B01J41/04B01J41/05B01J41/12C02F2101/14
    • Systems and processes for the removal of fluorochemicals from water are provided. Systems according to the invention include a vessel containing the ion exchange resin, the ion exchange resin including an insoluble matrix having functional groups bonded to the matrix, the functional groups being amines of the formula: N(R 1 R 2 R 3 ) Where N is nitrogen; and R 1 , R 2 and R 3 are hydrocarbon groups and can be the same or different, normal, branched and/or partially or fully substituted (e.g., fluorinated) and having a carbon chain length of C 1 or greater, the hydrocarbon chain optionally including polar groups (e.g., O, N, S). An inlet for directing a flow of water into the vessel is provided to facilitate contact between the water and the ion exchange resin; and an outlet is provided to direct a flow of water out of the vessel after the water is treated. A process for the removal of fluorochemicals from water is also provided by exposing water to the foregoing ion exchange resin, maintaining the water in contact with the resin for a period of time, and thereafter separating the water from the resin.
    • 提供了从水中除去含氟化合物的系统和方法。 根据本发明的系统包括含有离子交换树脂的容器,所述离子交换树脂包括具有与基质结合的官能团的不溶性基质,所述官能团是下式的胺:N(R 1) R 2 R 3 N)其中N是氮; 和R 1,R 2和R 3是烃基,并且可以是相同或不同的,正常的,支链的和/或部分的或完全的 取代(例如氟化)且碳链长度为C 1或更大,烃链任选地包括极性基团(例如O,N,S)。 提供用于将水流引导到容器中的入口以便于水和离子交换树脂之间的接触; 并且在处理水之后提供出口以将水流引导出容器。 通过将水暴露于上述离子交换树脂,保持水与树脂接触一段时间,然后将水从树脂中分离出来,还提供了从水中除去含氟化合物的方法。
    • 49. 发明申请
    • METHODS FOR MAKING CHLOROUS ACID AND CHLORINE DIOXIDE
    • 制备氯酸和二氧化氯的方法
    • WO03011750A3
    • 2003-10-02
    • PCT/US0223992
    • 2002-07-29
    • SAMPSON RICHARDSAMPSON ALLISON
    • SAMPSON RICHARDSAMPSON ALLISON
    • B01J31/08B01J39/02B01J39/04B01J41/02B01J41/04C01B11/02C01B11/08
    • C01B11/022B01J31/08B01J39/02B01J39/04B01J41/02B01J41/04C01B11/023C01B11/024C01B11/028C01B11/08
    • Chlorous acid is generated from a chlorite salt precursor, or a chlorate salt precursor. The ion exchange material facilitates the generation of chlorous acid by simultaneously removing unwanted cations from solution and andding hydrogen ion to solution. Chlorine dioxide is generated in a controlled manner from chlorous acid by catalysis. Chlorine dioxide can be generated either subsequent to the generation of chlorous acid or simultaneously with the generation of chlorous acid. For catalysis of chlorous acid to chlorine dioxide, the chlorous acid may be generated by ion exchange or in a conventional manner. Ion exchanage materials are also used to purify the chlorous acid and chlorine dioxide solutions, without causing degradation of said solutions, to exchange undesirable ions in the chlorous acid and chlorine dioxide solutions with desirable ions, such as stabilizing ions, and to adjust the pH of chlorous acid and chlorine dioxide solutions.
    • 氯酸由亚氯酸盐前体或氯酸盐前体产生。 离子交换材料通过同时从溶液中除去不需要的阳离子并将氢离子沉淀到溶液中来促进产生氯酸。 二氧化氯以受控的方式从氯酸通过催化产生。 二氧化氯可以在产生氯酸之后或同时产生亚氯酸时产生。 为了将亚氯酸催化成二氧化氯,氯酸可以通过离子交换或以常规方式产生。 离子运动材料也用于纯化氯酸和二氧化氯溶液,而不会导致所述溶液的降解,以使所需的离子如稳定离子在氯酸和二氧化氯溶液中交换不期望的离子,并调节pH 氯酸和二氧化氯溶液。