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    • 3. 发明申请
    • PROCESS FOR PRODUCING AMMONIUM THIOSULPHATE
    • 生产硫酸氢铵的方法
    • WO2002072243A1
    • 2002-09-19
    • PCT/US2002/006911
    • 2002-03-08
    • EL PASO MERCHANT ENERGY PETROLEUM CO.SHAFER, Ronald, E.
    • SHAFER, Ronald, E.ANDERSON, Mark, C.WHITE, Sidney, P.
    • B01D53/52
    • B01D53/1468B01D53/1493B01D2257/304B01D2257/406C01B17/64
    • A process is provided for removing hydrogen sulphide and ammonia out of a gas (12), such as sour water stripper gas. The hydrogen sulfide and ammonia-containing gas is fed into a first reactor (38) where only a portion of the hydrogen sulfide and ammonia are sorbed out of the gas into an ammonium sulfite and ammonium bisulfite-containing scrub solution (40), where the sorbed hydrogen sulfide and sorbed ammonia react with the sulfite values within the scrub solution to form ammonium thiofulfate product. The residual, unsorbed hydrogen sulfide and unsorbed ammonia from the gas are fed into a water scrubber (74), where water, ammonia and hydrogen sulfide react to form ammonium bisulfide product and a gas containing residual, unreacted hydrogen sulfide (78). This residual, unreacted hydrogen sulfide may be combusted into sulfur dioxide. This sulfur dioxide (or sulfur dioxide from another source) (84) is mixed with the scrub solution (58) in a second reactor (82) where it reacts with the ammonia therein to provide the ammonium sulfite and ammonium bisulfite necessary for the production of ammonium thiosulfate product.
    • 提供了用于从气体(12)中除去硫化氢和氨的方法,例如酸性水汽提器气体。 将硫化氢和含氨气体进料到第一反应器(38)中,其中只有一部分硫化氢和氨从气体中吸收到含亚硫酸铵和含亚硫酸氢铵的洗涤溶液(40)中,其中 吸附的硫化氢和吸附的氨与洗涤溶液中的亚硫酸盐反应形成硫代硫酸铵产物。 来自气体的残留的未吸附的硫化氢和未吸收的氨被供给到水洗涤器(74)中,其中水,氨和硫化氢反应以形成二硫化铵产物和含有残留的未反应的硫化氢的气体(78)。 该残留的未反应的硫化氢可燃烧成二氧化硫。 这种二氧化硫(或来自另一来源的二氧化硫)(84)在第二反应器(82)中与洗涤溶液(58)混合,其中与其中的氨反应,以提供生产亚硫酸铵所必需的亚硫酸铵和亚硫酸氢铵 硫代硫酸铵产品。
    • 4. 发明申请
    • PROCESS FOR TREATING A GAS STREAM
    • 处理气流的过程
    • WO2007137143A2
    • 2007-11-29
    • PCT/US2007069192
    • 2007-05-17
    • THIOSOLV L L CANDERSON MARK CRAY MICHAEL FSHAFER RONALD
    • ANDERSON MARK CRAY MICHAEL FSHAFER RONALD
    • B01D53/52
    • B01D53/526B01D53/77B01D2251/206B01D2257/304B01D2257/504C01B17/64Y02C10/04Y02P20/152Y10S423/05
    • A process for treating a gas comprising hydrogen sulfide and carbon dioxide by contacting the gas with a scrub solution comprising ammonium sulfite and ammonium bisulfite in a first contact zone to produce ammonium thiosulfate. The scrub solution can be formed in a second contact zone by contacting ammonia and hydrogen sulfide with an aqueous solution. The oxidation potential of the first contact zone effluent liquid can be controlled by modulating the amount of sulfur dioxide supplied to the second contact zone. Alternatively, the sulfite concentration of the first contact zone effluent can be measured with an infrared analyzer and the amount of sulfur dioxide supplied to the second contact zone modulated in response. Additionaily, the amount of ammonia supplied to the second contact zone can be modulated in response to the pH in the second contact zone. The process can further comprise a solvent scrubber to remove carbon dioxide from the first contact zone overhead gas. A third contact zone can be included in the process to separate the hydrogen sulfite from the carbon dioxide in the solvent regenerator overhead gas.
    • 一种通过在第一接触区使气体与包含亚硫酸铵和亚硫酸氢铵的洗涤溶液接触以产生硫代硫酸铵的方法来处理包含硫化氢和二氧化碳的气体的方法。 洗涤溶液可以通过使氨和硫化氢与水溶液接触而在第二接触区中形成。 可以通过调节供应到第二接触区域的二氧化硫的量来控制第一接触区流出液体的氧化电位。 或者,可以用红外分析仪测量第一接触区流出物的亚硫酸盐浓度,并且响应地调制供应到第二接触区的二氧化硫的量。 另外,可以响应于第二接触区域中的pH调节供应到第二接触区域的氨的量。 该方法还可以包括用于从第一接触区塔顶气体中除去二氧化碳的溶剂洗涤器。 在该方法中可以包括第三接触区,以从溶剂再生器塔顶气体中的二氧化碳中分离出亚硫酸氢盐。
    • 7. 发明申请
    • OXIDATION PROCESS FOR PRODUCING POTASSIUM THIOSULFATE
    • 生产硫代硫酸钾的氧化方法
    • WO2017116775A1
    • 2017-07-06
    • PCT/US2016/067336
    • 2016-12-16
    • TESSENDERLO KERLEY, INC.
    • HOJJATIE, Michael MassoudLOCKHART, Constance Lynn FrankDIMITRIADIS, AlexandrosCLARKSON, Mark P.KOMINSKI, Harry CharlesVAN CAUWENBERGH, JeroenSHULT, Nicholas S.GOLDSMITH, Adam T.
    • C05C9/00
    • C01B17/64C05D1/00C05G3/0064
    • An efficient process for preparation of potassium thiosulfate (K 2 S 2 O 3 ) is described. Potassium hydroxide (KOH) and elemental sulfur (S) are converted to potassium polysulfide, which is subsequently oxidized. The process allows using specifically designed process conditions such as mole ratios of potassium hydroxide to sulfur, and temperature, to obtain an optimized formulation of desired polysulfide, and a specifically designed set of conditions such as temperature, pressure, rate and duration of the oxidant during the oxidation conditions, to obtain a relatively high concentration of soluble potassium thiosulfate product with high purity, with relatively low amounts of byproducts. The manufacturing process can either be a batch process or a continuous process utilizing Continuous Stirred Tank Reactors (CSTR). The CSTR process is dependent on several design parameters, including pressure, and temperature optimization to avoid product instability. The resulting potassium thiosulfate is a beneficial fertilizer with high potassium content as a 50% liquid source of potassium.
    • 描述了制备硫代硫酸钾(K 2 S 2 O 3)的有效方法。 氢氧化钾(KOH)和元素硫(S)转化为多硫化钾,随后将其氧化。 该方法允许使用专门设计的工艺条件,例如氢氧化钾与硫的摩尔比和温度,以获得所需多硫化物的优化配方,以及特定设计的一组条件,例如氧化剂的温度,压力,速率和持续时间 氧化条件,以获得高纯度的相对高浓度的可溶性硫代硫酸钾产品,副产物量相对较低。 制造过程既可以是间歇过程,也可以是连续搅拌罐式反应器(CSTR)的连续过程。 CSTR过程依赖于几个设计参数,包括压力和温度优化以避免产品不稳定。 所得到的硫代硫酸钾是一种钾含量高,钾含量为50%的有益肥料。
    • 9. 发明申请
    • 金属錯体量子結晶の製造方法
    • 生产金属复合物质晶体的方法
    • WO2012033097A1
    • 2012-03-15
    • PCT/JP2011/070274
    • 2011-09-06
    • 長谷川 裕起長谷川 克之有限会社マイテック
    • 長谷川 裕起長谷川 克之
    • C01B17/64C01G5/00C07C229/08C07F1/10
    • C23C16/50C01B17/64C01G5/00C01P2002/82C01P2004/03C01P2004/04C01P2004/24C01P2004/61G01N21/658
    •  【課題】 プラズモン金属量子ドットを内包する錯体結晶量子結晶を形成する方法を提供する。 【解決手段】 金、銀、銅、ニッケル、亜鉛、アルミニウム又は白金から選ばれるプラズモン金属と配位子とからなるプラズモン金属錯体水溶液を用意し、プラズモン金属より電極電位が卑なる金属又は金属合金またはプラズモン金属より卑なる電極電位を持たせた金属からなる担体と接触させてプラズモン金属錯体を析出させ、プラズモン増強効果を有する量子結晶を前記金属担体上に配列することを特徴とする量子結晶の製造方法であり、金属錯体結晶は金属量子ドットを内包し、量子サイズ効果として表面プラズモン励起・電場増強効果に優れるだけでなく、被検体の吸着能力に優れる。
    • 提供一种制造封装等离子体金属量子点的复合晶体量子晶体的方法。 [解决方案]通过一种方法制备量子晶体,其特征在于制备由配体和选自金,银,铜,镍,锌,铝和铂的等离子体金属形成的等离子体金属络合物水溶液,并使其与 由金属或金属合金形成的载体,其电极电位低于等离子体金属的电极电位,或者已经达到比等离子体金属低的电极电位的金属,使得等离子体金属络合物沉淀并且量子 具有等离子体增强效果的晶体设置在金属载体上。 作为量子尺寸的结果,金属络合物晶体包封金属量子点,并且获得优异的对象吸附能力以及优异的表面等离子体激发场增强效果。