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公开(公告)号：US20100087697A1
公开(公告)日：2010-04-08
申请号：US12634728
申请日：2009-12-10
IPC分类号： A62D3/37
CPC分类号： A62D3/37 , C22B3/20 , C22B7/006 , C22B34/32 , Y02P10/234 , Y10S210/913
摘要： Methods to reduce hexavalent chromium (Cr(VI)) in chromite processing wastes include one or more of the following steps: contacting the chromite processing wastes with an oxygen scavenger or chemical reducer; permitting the chromite processing wastes to react with the oxygen scavenger or chemical reducer, contacting the chromite processing wastes with ferrous ion; contacting the chromite processing wastes with sulfide ion; and, contacting the chromite processing wastes with ferrous sulfide.
摘要翻译： 在铬铁矿加工废物中减少六价铬（Cr（VI））的方法包括以下一个或多个步骤：使铬铁矿处理废物与除氧剂或化学还原剂接触; 允许铬铁矿处理废物与除氧剂或化学还原剂反应，使铬铁矿处理废物与亚铁离子接触; 使铬铁矿处理废物与硫化物离子接触; 并将铬铁矿处理废物与硫化亚铁接触。
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公开(公告)号：US07670576B2
公开(公告)日：2010-03-02
申请号：US11578621
申请日：2005-09-07
IPC分类号： C02F1/52
CPC分类号： C02F1/70 , A62D3/37 , A62D2101/24 , A62D2101/43 , C01G37/00 , C02F1/5245 , C02F1/66 , C02F9/00 , C02F2101/22 , C02F2103/10 , C02F2209/06 , C22B7/006 , C22B34/32 , Y02P10/234 , Y10S210/913
摘要： Methods to reduce hexavalent chromium (Cr(VI)) in chromite processing wastes include one or more of the following steps: contacting the chromite processing wastes with an oxygen scavenger or chemical reducer; permitting the chromite processing wastes to react with the oxygen scavenger or chemical reducer; contacting the chromite processing wastes with ferrous ion; contacting the chromite processing wastes with sulfide ion; and, contacting the chromite processing wastes with ferrous sulfide.
摘要翻译： 在铬铁矿加工废物中减少六价铬（Cr（VI））的方法包括以下一个或多个步骤：使铬铁矿处理废物与除氧剂或化学还原剂接触; 允许铬铁矿处理废物与除氧剂或化学还原剂反应; 使亚铬酸盐处理废物与亚铁离子接触; 使铬铁矿处理废物与硫化物离子接触; 并将铬铁矿处理废物与硫化亚铁接触。
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公开(公告)号：US08192705B2
公开(公告)日：2012-06-05
申请号：US12634728
申请日：2009-12-10
IPC分类号： C01G37/00
CPC分类号： A62D3/37 , C22B3/20 , C22B7/006 , C22B34/32 , Y02P10/234 , Y10S210/913
摘要： Methods to reduce hexavalent chromium (Cr(VI)) in chromite processing wastes include one or more of the following steps: contacting the chromite processing wastes with an oxygen scavenger or chemical reducer; permitting the chromite processing wastes to react with the oxygen scavenger or chemical reducer; contacting the chromite processing wastes with ferrous ion; contacting the chromite processing wastes with sulfide ion; and, contacting the chromite processing wastes with ferrous sulfide.
摘要翻译： 在铬铁矿加工废物中减少六价铬（Cr（VI））的方法包括以下一个或多个步骤：使铬铁矿处理废物与除氧剂或化学还原剂接触; 允许铬铁矿处理废物与除氧剂或化学还原剂反应; 使亚铬酸盐处理废物与亚铁离子接触; 使铬铁矿处理废物与硫化物离子接触; 并将铬铁矿处理废物与硫化亚铁接触。
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公开(公告)号：US20100286464A1
公开(公告)日：2010-11-11
申请号：US12841477
申请日：2010-07-22
IPC分类号： A62D3/37
CPC分类号： A62D3/37 , C22B3/20 , C22B7/006 , C22B34/32 , Y02P10/234 , Y10S210/913
摘要： Methods to reduce hexavalent chromium (Cr(VI)) in chromite processing wastes include one or more of the following steps: contacting the chromite processing wastes with an oxygen scavenger or chemical reducer; permitting the chromite processing wastes to react with the oxygen scavenger or chemical reducer; contacting the chromite processing wastes with ferrous ion; contacting the chromite processing wastes with sulfide ion; and, contacting the chromite processing wastes with ferrous sulfide.
摘要翻译： 在铬铁矿加工废物中减少六价铬（Cr（VI））的方法包括以下一个或多个步骤：使铬铁矿处理废物与除氧剂或化学还原剂接触; 允许铬铁矿处理废物与除氧剂或化学还原剂反应; 使亚铬酸盐处理废物与亚铁离子接触; 使铬铁矿处理废物与硫化物离子接触; 并将铬铁矿处理废物与硫化亚铁接触。
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公开(公告)号：US20090118564A1
公开(公告)日：2009-05-07
申请号：US12259578
申请日：2008-10-28
IPC分类号： A62D3/33
CPC分类号： A62D3/33 , A62D2101/24 , A62D2101/43 , B01D53/64 , B01D2251/402 , B01D2251/404 , B01D2257/60
摘要： Methods for treatment a heavy metal-contaminated solid, semi-solid, liquid or gaseous matrix with magnesium oxide, magnesium sulfite, magnesium sulfate, magnesium chloride, magnesium hydroxide, and mixtures of any two or more of these. Methods for treatment of a solid or semi-solid waste containing unacceptable levels of leachable aluminum and reactive metallic aluminum-containing waste with magnesium oxide, magnesium sulfite, magnesium sulfate, magnesium hydroxide, magnesium chloride, and mixtures of any two or more of these.
摘要翻译： 用氧化镁，亚硫酸镁，硫酸镁，氯化镁，氢氧化镁以及它们中任意两种或多种的混合物处理重金属污染的固体，半固体，液体或气体基质的方法。 含有氧化镁，亚硫酸镁，硫酸镁，氢氧化镁，氯化镁，以及它们中任意两种或多种的混合物的不可接受水平的可浸出铝和活性金属含铝废物的固体或半固体废物的处理方法。
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公开(公告)号：US09409046B2
公开(公告)日：2016-08-09
申请号：US12259578
申请日：2008-10-28
IPC分类号： A62D3/33 , A62D101/43 , B01D53/64 , A62D101/24
CPC分类号： A62D3/33 , A62D2101/24 , A62D2101/43 , B01D53/64 , B01D2251/402 , B01D2251/404 , B01D2257/60
摘要： Methods for treatment a heavy metal-contaminated solid, semi-solid, liquid or gaseous matrix with magnesium oxide, magnesium sulfite, magnesium sulfate, magnesium chloride, magnesium hydroxide, and mixtures of any two or more of these. Methods for treatment of a solid or semi-solid waste containing unacceptable levels of leachable aluminum and reactive metallic aluminum-containing waste with magnesium oxide, magnesium sulfite, magnesium sulfate, magnesium hydroxide, magnesium chloride, and mixtures of any two or more of these.
摘要翻译： 用氧化镁，亚硫酸镁，硫酸镁，氯化镁，氢氧化镁以及它们中任意两种或多种的混合物处理重金属污染的固体，半固体，液体或气体基质的方法。 含有氧化镁，亚硫酸镁，硫酸镁，氢氧化镁，氯化镁，以及它们中任意两种或多种的混合物的不可接受水平的可浸出铝和活性金属含铝废物的固体或半固体废物的处理方法。
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