-
公开(公告)号：US06570048B1
公开(公告)日：2003-05-27
申请号：US09602488
申请日：2000-06-23
IPC分类号： A62D300
CPC分类号： A62D3/38 , A62D2101/02 , A62D2101/26
摘要： Organophosphorous compounds containing C—P chemical bonds are oxidized with alkaline peroxysulfate to yield orthophosphates. For example, phosphinates, including certain chemical warfare agents, as well as phosphinate salts produced by the solvated electron reduction of the chemical warfare agents, are oxidized to orthophosphates.
摘要翻译： 含有C-P化学键的有机磷化合物用碱性过氧硫酸盐氧化，得到正磷酸盐。 例如，包括某些化学战剂在内的次膦酸盐以及化学战剂的溶剂化电子还原产生的次膦酸盐被氧化为正磷酸盐。
-
2.发明授权
公开(公告)号：US6110995A
公开(公告)日：2000-08-29
申请号：US273688
申请日：1994-07-12
CPC分类号： C08J3/09 , C08F6/20 , C08J2300/14
摘要： The use of falling-film evaporation and a concentration means such as centrifugal separation to dehydrate and concentrate a water-in-oil polymer emulsion or suspension is disclosed. In a preferred embodiment, a water-in-oil polymer composition containing less than about 25% active polymer solids is dehydrated in falling-film evaporator to produce an evaporator concentrate containing less than about 5.0% water. The evaporator concentrate then flows to a separation device such as a centrifuge, wherein oil is removed to produce a composition that is substantially a polymer and emulsifying surfactant-in-oil composition containing in excess of about 60 weight % polymer solids. The centrifuge raffinate may optionally be treated in a second separation means to capture additional polymer solids, with optional recycle of the oil-rich raffinate. The concentrated polymer composition is preferably stabilized with a steric stabilizer to produce a free flowing liquid product.
摘要翻译： 公开了使用降膜蒸发和诸如离心分离的浓缩装置来使油包水聚合物乳液或悬浮液脱水并浓缩。 在优选的实施方案中，包含少于约25％活性聚合物固体的油包水聚合物组合物在降膜蒸发器中脱水以产生含有少于约5.0％水的蒸发浓缩物。 蒸发器浓缩物然后流到分离装置，例如离心机，其中除去油，以产生基本上是含有超过约60重量％聚合物固体的聚合物和乳化表面活性剂 - 油组合物的组合物。 离心萃余液可以任选地在第二分离装置中处理以捕获另外的聚合物固体，并且富油萃取液的任选循环。 浓缩的聚合物组合物优选用空间稳定剂稳定以产生自由流动的液体产物。
-
公开(公告)号：US6049021A
公开(公告)日：2000-04-11
申请号：US248879
申请日：1999-02-11
申请人： Gerry D. Getman , Jon E. Rogers , Wood E. Hunter
发明人： Gerry D. Getman , Jon E. Rogers , Wood E. Hunter
IPC分类号： A62D3/00 , A62D3/32 , A62D3/34 , A62D3/36 , A62D101/06 , A62D101/20 , A62D101/22 , A62D101/24 , A62D101/26 , A62D101/28 , B01D11/00 , B01J8/00 , B09B3/00 , B09C1/02 , B09C1/08 , C02F1/70 , G21F20060101 , G21F9/00 , G21F9/28
摘要： Methods for decontaminating toxic waste, particularly solid carrier materials, such as soil contaminated with a toxin, or solid mixed wastes are more efficiently decontaminated with solvated electrons by first extracting the toxin from the carrier with a nitrogenous base at elevated temperatures, followed by a temperature reduction before initiating chemical reduction of the toxin with solvated electrons. Pre-extraction of the toxin at elevated temperatures followed by temperature reduction minimizes competing side reactions, improves selectivity of solvated electrons for the toxin and improves the economics of the process with more efficient metal utilization. The process can be performed without separation of the toxin from the extraction vessel holding the solid carrier material. Alternatively, elevated temperatures can be used to perform one or more extractions of toxin with nitrogenous base followed by reduction with solvated electrons by performing the reaction in a separate reactor. The processes of the invention are useful in the destruction of virtually any chemically reducible hazardous substance.
摘要翻译： 用有毒废物，特别是固体载体材料（如毒素污染的土壤）或固体混合废物进行净化的方法，通过首先在高温下用含氮碱从载体中提取毒素，再用溶剂化电解进行更有效的净化，然后加入温度 在用溶剂化电子开始化学还原毒素之前还原。 在升高的温度下预先提取毒素，随后进行温度降低，使竞争性副反应最小化，提高溶剂化电子对毒素的选择性，并通过更有效的金属利用来改善该方法的经济性。 该过程可以在不将毒素从保持固体载体材料的萃取容器中分离的情况下进行。 或者，升高的温度可用于用含氮碱进行一次或多次毒素提取，然后通过在单独的反应器中进行反应而用溶剂化电子还原。 本发明的方法可用于几乎任何化学还原性有害物质的破坏。
-
公开(公告)号：US4299965A
公开(公告)日：1981-11-10
申请号：US164453
申请日：1980-06-30
申请人： Marie S. Chan , Wood E. Hunter
发明人： Marie S. Chan , Wood E. Hunter
IPC分类号： C07D249/18
CPC分类号： C07D249/18
摘要： Low temperature process for the preparation of benzotriazole at high solids concentrations by the reaction of orthophenylenediamine, sodium nitrite and acetic acid in an aqueous medium at a temperature in the range of from 5.degree. to 25.degree. C., and neutralizing with caustic to liberate benzotriazole in quantitative yield.
摘要翻译： 通过邻苯二胺，亚硝酸钠和乙酸在水介质中在5〜25℃的温度下反应制备高固体浓度的苯并三唑的低温方法，并用苛性碱中和以释放苯并三唑 定量产量。
-
公开(公告)号：US4152274A
公开(公告)日：1979-05-01
申请号：US876296
申请日：1978-02-09
CPC分类号： C09K8/68 , C09K8/62 , Y10S507/922 , Y10T137/0391
摘要： A method of reducing friction loss in oil well fracturing through the addition of small amounts of copolymers of acrylamide and quaternary salts of dimethylaminoethyl methacrylate and dimethylaminopropyl methacrylamide.
-
6.发明授权Preparation of diallyl dimethyl ammonium chloride and polydiallyl dimethyl ammonium chloride 失效二烯丙基二甲基氯化铵和聚二烯丙基二甲基氯化铵的制备
公开(公告)号：US4151202A
公开(公告)日：1979-04-24
申请号：US934923
申请日：1978-08-18
申请人： Wood E. Hunter , Theodore P. Sieder
发明人： Wood E. Hunter , Theodore P. Sieder
摘要： Water-soluble polymers of diallyl dimethyl ammonium chloride can be prepared from monomer solution containing a large amount of an alkali metal halide salt. Additionally, a method is disclosed for making high quality monomer which involves purification of allyl chloride which is used to prepare the starting monomeric material, optimum temperature control during caustic addition, and partial distillation to remove harmful impurities.
摘要翻译： 二烯丙基二甲基氯化铵的水溶性聚合物可以由含有大量碱金属卤化物盐的单体溶液制备。 此外，公开了一种制造高纯度单体的方法，其涉及纯化用于制备起始单体材料的烯丙基氯，苛性加料期间的最佳温度控制和部分蒸馏以除去有害杂质。
-
7.发明授权Urea as an additive to improve the viscosity and activity of acrylamide-acrylamide acrylic acid polymers prepared from poor quality acrylamide 失效尿素作为添加剂，用于提高丙烯酰胺 - 丙烯酰胺丙烯酸聚合物的粘度和活性
公开(公告)号：US4042772A
公开(公告)日：1977-08-16
申请号：US739770
申请日：1976-11-08
IPC分类号： C08F20/56 , C08F2/00 , C08F4/00 , C08F20/70 , C08F120/54
CPC分类号： C08F20/56
摘要： Poor quality acrylamide can be used to produce good quality water-soluble polymers by conducting the polymerization in the presence of urea.
摘要翻译： 不优选的丙烯酰胺可用于通过在尿素存在下进行聚合来生产出优质的水溶性聚合物。
-
公开(公告)号：US6121506A
公开(公告)日：2000-09-19
申请号：US329533
申请日：1999-06-10
IPC分类号： A62D3/00 , A62D3/30 , A62D3/34 , A62D3/36 , A62D3/37 , A62D101/02 , A62D101/06 , A62D101/22 , A62D101/26 , A62D101/28 , F42B33/00
CPC分类号： A62D3/36 , A62D3/30 , A62D2101/02 , A62D2101/06 , A62D2101/26 , Y10S149/124
摘要： Energetic materials, such as nitrocellulose, TNT, RDX, and combinations thereof, optionally in combination with chemical warfare agents, such as mustard gas, Lewisite, Tabun, Sarin, Toman, VX, and combinations thereof, are destroyed when chemically reacted according to the method of the invention. The method comprises reacting the energetic materials and chemical warfare agents, of present, with solvated electrons which are preferably produced by dissolving an active metal such as sodium in a nitrogenous base such as anhydrous liquid ammonia.
摘要翻译： 与化学战剂（如芥子气，Lewisite，Tabun，Sarin，Toman，VX及其组合）相结合的能量物质如硝酸纤维素，TNT，RDX及其组合在化学反应时被破坏， 本发明的方法。 该方法包括使能量材料和化学战剂与溶剂化电子反应，溶剂化电子优选通过将诸如钠的活性金属溶解在诸如无水液氨的含氮碱中而产生。
-
公开(公告)号：US5589525A
公开(公告)日：1996-12-31
申请号：US315371
申请日：1994-09-30
摘要： The use of falling-film evaporation and a concentration means such as centrifugal separation to dehydrate and concentrate a water-in-oil polymer emulsion or suspension is disclosed. In a preferred embodiment, a water-in-oil polymer composition containing less than about 25% active polymer solids is dehydrated in falling-film evaporator to produce an evaporator concentrate containing less than about 5.0% water. The evaporator concentrate then flows to a separation device such as a centrifuge, wherein oil is removed to produce a composition that is substantially a polymer and emulsifying surfactant-in-oil composition containing in excess of about 60 weight % polymer solids. The centrifuge raffinate may optionally be treated in a second separation means to capture additional polymer solids, with optional recycle of the oil-rich raffinate. The concentrated polymer composition is preferably stabilized with a steric stabilizer to produce a free flowing liquid product.
-
10.发明授权Process for the manufacture of high solids, free-flowing, granular poly(dimethyldiallyl ammonium chloride) 失效制备高固体，自由流动的粒状聚（二甲基二烯丙基氯化铵）的方法
公开(公告)号：US4654378A
公开(公告)日：1987-03-31
申请号：US606048
申请日：1984-05-02
申请人： Wood E. Hunter , Gary P. Craun
发明人： Wood E. Hunter , Gary P. Craun
CPC分类号： C08F26/04 , Y10S522/903
摘要： The instant invention is directed to a process for the manufacture of poly(dimethyldiallyl ammonium chloride) comprising:(a) casting upon a continuous belt apparatus to form a film having a thickness of 1/4 inch to 1 inch an aqueous dimethyldiallyl ammonium chloride solution having a monomer concentration of at least 65 percent, by weight, monomer, said monomer solution also containing a photoreducible dye in a concentration of 1.times.10.sup.-7 to 1.times.10.sup.-4 moles per liter, a mild reducing agent in a concentration of 1.times.10.sup.-5 to 1.times.10.sup.-2 moles per liter and thermal initiator in a concentration of 1.times.10.sup.-5 to 1.times.10.sup.-2 moles per liter;(b) passing of the solution under a series of lights which emit visible light at an intensity of 0.1 to 10,000 foot candles and controlling the temperature of the monomer solution in the range of 5.degree. C. to 65.degree. C.;(c) allowing the polymerization to proceed until a polymer gel is formed;(d) reducing the size of the polymer gel of step (c) by a size reduction means, so as to produce polymer gel particles which are less than 1 inch in their longest dimension; and(e) further polymerizing the size-reduced polymer gel particles of step (d) to obtain higher conversion, thereby producing polydimethyldiallyl ammonium chloride gel particles which are at least 70 percent, by weight, active polymer, readily soluble and free-flowing.The instant invention is further directed to free-flowing, water-soluble granules of poly(dimethyldiallyl ammonium chloride), wherein said granules contain at least 70 percent, by weight, active polymer.
摘要翻译： 本发明涉及一种制备聚（二甲基二烯丙基氯化铵）的方法，包括：（a）在连续带装置上浇铸以形成1/4英寸至1英寸厚度的二甲基二烯丙基氯化铵水溶液 单体浓度为单体的至少65重量％，所述单体溶液还含有浓度为1×10 -7至1×10 -4摩尔/升的光还原性染料，浓度为1×10 -5至 1×10 -2摩尔/升和热引发剂，浓度为1×10-5至1×10-2摩尔/升; （b）将溶液通过发射强度为0.1至10,000英尺烛光的可见光的一系列灯，并将单体溶液的温度控制在5℃至65℃的范围内。 （c）使聚合进行直至形成聚合物凝胶; （d）通过尺寸减小装置减小步骤（c）的聚合物凝胶的尺寸，以便产生其最长尺寸小于1英寸的聚合物凝胶颗粒; 和（e）进一步聚合步骤（d）的尺寸减小的聚合物凝胶颗粒以获得更高的转化率，从而产生至少70重量％的活性聚合物，容易溶解和自由流动的聚二甲基二烯丙基氯化铵凝胶颗粒。 本发明进一步涉及聚（二甲基二烯丙基氯化铵）的自由流动的水溶性颗粒，其中所述颗粒含有至少70重量％的活性聚合物。
-
-
-
-
-
-
-
-
-
搜索结果
28 条记录 (耗时 0.017 秒)
