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    • 8. 发明授权
    • Concentrated aqueous bromine solutions and their preparation
    • 浓缩溴水溶液及其制备
    • US06495169B1
    • 2002-12-17
    • US09456781
    • 1999-12-08
    • Robert M. Moore, Jr.Christopher J. Nalepa
    • Robert M. Moore, Jr.Christopher J. Nalepa
    • A01N5902
    • C02F1/766A01N59/00C02F2303/04G09F3/10A01N59/02A01N25/22A01N2300/00
    • Described is a process of producing a concentrated liquid biocide formulation. Mixed together are (a) bromine chloride or bromine and (b) an aqueous solution of alkali metal salt of sulfamic acid having a pH of at least about 7, in amounts such that (i) the active bromine content of the solution is at least about 100,000 ppm (wt/wt), and (ii) the atom ratio of nitrogen to active bromine from (a) and (b) is greater than 1 when bromine is used and is greater than 0.93 when bromine chloride is used. Use of bromine chloride as the source of the active bromine in the process is preferred because in the resulting aqueous compositions, all of the bromine of the bromine chloride is made available as active bromine in solution. In other words, the chlorine of the bromine chloride is converted in the process to dissolved alkali metal chloride salt, thereby liberating all of the bromine as the active bromine content of the biocidal composition.
    • 描述了生产浓缩液体杀生物剂制剂的方法。 混合在一起是(a)溴化氯或溴,和(b)具有至少约7的pH的氨基磺酸的碱金属盐的水溶液,其量使得(i)溶液的活性溴含量至少为 大约100,000ppm(wt / wt),和(ii)当使用溴时,(a)和(b)的氮与活性溴的原子比大于1,并且当使用溴氯化物时大于0.93。 在该方法中使用溴氯化物作为活性溴的来源是优选的,因为在所得含水组合物中溴溴化物的溴全部作为活性溴在溶液中得到。 换句话说,溴化氯的氯在该过程中转化为溶解的碱金属氯化物盐,从而释放所有溴作为杀生物组合物的活性溴含量。
    • 9. 发明授权
    • Water treatment composition
    • 水处理组成
    • US06420312B2
    • 2002-07-16
    • US09877187
    • 2001-06-11
    • Thomas J. NierTosby L. Linn
    • Thomas J. NierTosby L. Linn
    • A01N5902
    • C02F1/56A01N59/20C02F1/505C02F1/52A01N59/16A01N59/06A01N33/12A01N2300/00
    • An algicide-flocculant solution for use in treating raw water in a municipal water plant to control algae, the algicide-flocculant solution including 25-50 wt % of an acidic flocculant, 0-10 wt % of a polymer flocculant aid, an algicide of essentially copper having a concentration of 0.025-1.25 wt % in the form of a water soluble capper salt, and balance water. Uniform mixing of the flocculant into the raw water simultaneously uniformly mixes the algicide of the algicide-flocculant solution into the raw water. The acidic flocculant is preferably aluminium sulfate, iron sulfate, iron chloride or mixtures thereof. The water soluble copper salt is preferably copper sulfate, copper chloride, copper nitrate, copper acetate or mixtures thereof. Moreover, the flocculant aid is a high molecular weight quaternary amine such as diallyldimethylammonium chloride.
    • 一种用于处理市政水厂原水以控制藻类的杀藻剂 - 絮凝剂溶液,所述杀藻剂 - 絮凝剂溶液包括25-50重量%的酸性絮凝剂,0-10重量%的聚合物絮凝剂, 基本上为水溶性封闭剂盐形式的浓度为0.025-1.25重量%的铜,余量为水。 将絮凝剂均匀混合到原水中同时将杀藻剂 - 絮凝剂溶液的杀藻剂均匀混合到原水中。 酸性絮凝剂优选为硫酸铝,硫酸铁,氯化铁或其混合物。 水溶性铜盐优选为硫酸铜,氯化铜,硝酸铜,乙酸铜或其混合物。 此外,絮凝助剂是高分子量季胺,如二烯丙基二甲基氯化铵。