Process for preparation of calcium thiosulfate liquid solution from lime, sulfur, and sulfur dioxide
    15.
    发明授权
    Process for preparation of calcium thiosulfate liquid solution from lime, sulfur, and sulfur dioxide 有权
    从石灰,硫磺和二氧化硫制备硫代硫酸钙液体溶液的方法

    公开(公告)号:US08034318B1

    公开(公告)日:2011-10-11

    申请号:US12764843

    申请日:2010-04-21

    IPC分类号: C01B17/64

    摘要: An efficient batch or semi-continuous method of production of relative high concentration, low byproduct-containing, calcium thiosulfate (CaS2O3) from lime, sulfur or calcium polysulfide, and sulfur dioxide under elevated reaction temperature conditions is described. The product is an emulsion of liquid calcium thiosulfate and solid byproducts. Under the conditions of the art, including the mole ratios of lime to sulfur, the temperature of the reaction process and the sulfur dioxide reaction conditions, including rate and duration, the byproducts are reduced to about 2% by weight.

    摘要翻译: 描述了在升高的反应温度条件下生产来自石灰,硫磺或多硫化钙的相对高浓度,低副产物的硫代硫酸钙(CaS 2 O 3)和二氧化硫的有效的分批或半连续方法。 该产品是液体硫代硫酸钙和固体副产物的乳液。 在本领域的技术条件下,包括石灰与硫的摩尔比,反应过程的温度和二氧化硫反应条件(包括速率和持续时间),副产物减少到约2重量%。

    Process and apparatus for scrubbing sulfur dioxide from flue gas and conversion to fertilizer
    17.
    发明申请
    Process and apparatus for scrubbing sulfur dioxide from flue gas and conversion to fertilizer 审中-公开
    用于从烟道气中洗涤二氧化硫并转化为肥料的方法和设备

    公开(公告)号:US20050002852A1

    公开(公告)日:2005-01-06

    申请号:US10901607

    申请日:2004-07-29

    IPC分类号: B01D53/50 B01D53/75 C01B17/64

    摘要: A method for removing sulfur dioxide from flue gas and forming ammonium salts is described, along with a method for conversion of the ammonium salts into thiosulfate. Also described are an apparatus for absorbing sulfur dioxide from flue gas and an apparatus for converting ammonium salts into thiosulfate. The apparatus for absorbing sulfur dioxide from flue gas includes a multistage scrubber. The apparatus for converting ammonium salts into thiosulfate includes a fluidized bed reactor.

    摘要翻译: 描述了从烟道气中除去二氧化硫并形成铵盐的方法,以及将铵盐转化为硫代硫酸盐的方法。 还描述了一种用于从烟道气中吸收二氧化硫的装置和用于将铵盐转化成硫代硫酸盐的装置。 用于从烟道气中吸收二氧化硫的装置包括多级洗涤器。 将铵盐转化为硫代硫酸盐的装置包括流化床反应器。

    Process for production of ammonium thiosulphate
    18.
    发明授权
    Process for production of ammonium thiosulphate 有权
    硫代硫酸铵生产工艺

    公开(公告)号:US6159440A

    公开(公告)日:2000-12-12

    申请号:US227058

    申请日:1999-01-07

    申请人: Peter Schoubye

    发明人: Peter Schoubye

    CPC分类号: C01B17/64

    摘要: A process for continuous production of ammonium thiosulphate from H.sub.2 S, SO.sub.2, and NH.sub.3 comprising steps of producing in a first absorption step a solution of ammonium hydrogen sulphite by contacting a first gas stream comprising S0.sub.2 with NH.sub.3 and an aqueous solution comprising ammonium hydrogen sulphite in one or more absorbers connected in series and withdrawing a vent gas from one of the absorbers, passing the solution produced in the first absorption step to a second absorption step in which a second gas stream comprising H.sub.2 S is contacted with NH.sub.3 and an aqueous solution of ammonium thiosulphate thereby producing a solution being rich in ammonium thiosulphate.

    摘要翻译: 一种用于从H 2 S,SO 2和NH 3连续生产硫代硫酸铵的方法,包括以下步骤:在第一吸收步骤中通过使包含SO 2的第一气流与NH 3和含有亚硫酸氢铵的水溶液在一个 或更多的吸收器,并且将从第一吸收步骤中产生的溶液通过第二吸收步骤,其中将包含H 2 S的第二气流与NH 3和硫代硫酸铵的水溶液接触, 从而产生富含硫代硫酸铵的溶液。

    Silver-based antimicrobial compositions
    19.
    发明授权
    Silver-based antimicrobial compositions 失效
    银基抗菌组合物

    公开(公告)号:US06093414A

    公开(公告)日:2000-07-25

    申请号:US909239

    申请日:1997-08-11

    摘要: The present invention relates generally to silver-based antimicrobial compositions and processes for making such compositions. More particularly, the present invention describes stable, purified silver-based antimicrobial compositions, and processes for making such compositions, comprising carrier-free silver thiosulfate ion complexes either suspended in a base or incorporated into a matrix. These silver thiosulfate ion complex antimicrobial compositions are useful in the treatment and prevention of infections and diseases.

    摘要翻译: 本发明一般涉及银基抗微生物组合物和制备这种组合物的方法。 更具体地,本发明描述了稳定的纯化的银基抗微生物组合物,以及制备这种组合物的方法,其包括悬浮在碱中或掺入基质中的无载体的硫代硫酸银离子络合物。 这些硫代硫酸银离子复合抗菌组合物可用于治疗和预防感染和疾病。

    Process for producing an ammonium thiosulfate product
    20.
    发明授权
    Process for producing an ammonium thiosulfate product 失效
    硫代硫酸铵产品的生产方法

    公开(公告)号:US5618658A

    公开(公告)日:1997-04-08

    申请号:US520212

    申请日:1995-08-28

    IPC分类号: C01B17/64 G03C5/26 G03C5/38

    摘要: A substantially sulfur-free ammonium thiosulfate containing product can be produced by spray drying an aqueous solution containing ammonium thiosulfate and effective stabilizing amounts of both a carbonate component and a sulfite component under effective conditions to provide a substantially sulfur-free product. The carbonate component is selected from among ammonium carbonate or bicarbonate, an alkali metal carbonate or bicarbonate, or an alkaline metal carbonate or bicarbonate while the sulfite component is an ammonium sulfite or bisulfite, alkali metal sulfite or bisulfite, or an alkaline metal sulfite or bisulfite.

    摘要翻译: 可以通过在有效条件下喷雾干燥含有硫代硫酸铵的水溶液和有效稳定量的碳酸盐组分和亚硫酸盐组分来制备基本上无硫的含硫代硫酸铵的产物,以提供基本上无硫的产物。 碳酸盐组分选自碳酸铵或碳酸氢盐,碱金属碳酸盐或碳酸氢盐或碱金属碳酸盐或碳酸氢盐,而亚硫酸盐组分为亚硫酸铵或亚硫酸氢盐,碱金属亚硫酸盐或亚硫酸氢盐,或碱金属亚硫酸盐或亚硫酸氢盐 。