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1.发明申请Method of treatment, stabilization and heave control for chromite ore processing residues (COPR) and chromium contaminated soils 失效铬铁矿加工残渣（COPR）和铬污染土壤的处理，稳定化和起伏控制方法公开(公告)号：US20070088188A1
公开(公告)日：2007-04-19
申请号：US11395453
申请日：2006-03-31
申请人： Mahmoud Wazne , Dimitris Dermatas , Dilhan Kalyon , Xiaoguang Meng , Maria Kaouris , John Morris
发明人： Mahmoud Wazne , Dimitris Dermatas , Dilhan Kalyon , Xiaoguang Meng , Maria Kaouris , John Morris
CPC分类号： A62D3/33 , A62D3/37 , A62D2101/24 , A62D2101/43 , B09B3/0041 , B09C1/08 , C02F2101/22 , C22B3/10 , C22B7/007 , C22B34/32 , Y02P10/234
摘要： A process for stabilizing chromium in a chromite ore processing residue (COPR) comprises the steps of adding an acid to consume the excess alkalinity of the COPR, resulting in a pH of less than 10; and adding a chemical reductant to the COPR to convert any hexavalent chromium present to trivalent chromium. A source of sulfate may be added to the COPR to reduce heave potential and improve its geotechnical stability. Treated COPR may be encapsulated in a material suitable to prevent contact between the COPR and water, such as an asphalt.
摘要翻译： 在铬铁矿矿石加工残渣（COPR）中稳定铬的方法包括以下步骤：加入酸以消耗COPR的过量碱度，导致pH小于10; 并向COPR中加入化学还原剂以将任何六价铬转化为三价铬。 可以向COPR中加入硫酸盐以降低起伏潜力并提高其岩土稳定性。 经处理的COPR可以包封在适于防止COPR与水如沥青接触的材料中。
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2.发明授权Method of treatment, stabilization and heave control for chromite ore processing residues (COPR) and chromium contaminated soils 失效铬铁矿加工残渣（COPR）和铬污染土壤的处理，稳定化和起伏控制方法公开(公告)号：US07452163B2
公开(公告)日：2008-11-18
申请号：US11395453
申请日：2006-03-31
申请人： Mahmoud Wazne , Dimitris Dermatas , Dilhan M. Kalyon , Xiaoguang Meng , Maria Kaouris , John J. Morris
发明人： Mahmoud Wazne , Dimitris Dermatas , Dilhan M. Kalyon , Xiaoguang Meng , Maria Kaouris , John J. Morris
IPC分类号： E02D3/12
CPC分类号： A62D3/33 , A62D3/37 , A62D2101/24 , A62D2101/43 , B09B3/0041 , B09C1/08 , C02F2101/22 , C22B3/10 , C22B7/007 , C22B34/32 , Y02P10/234
摘要： A process for stabilizing chromium in a chromite ore processing residue (COPR) comprises the steps of adding an acid to consume the excess alkalinity of the COPR, resulting in a pH of less than 10; and adding a chemical reductant to the COPR to convert any hexavalent chromium present to trivalent chromium. A source of sulfate may be added to the COPR to reduce heave potential and improve its geotechnical stability. Treated COPR may be encapsulated in a material suitable to prevent contact between the COPR and water, such as an asphalt.
摘要翻译： 在铬铁矿矿石加工残渣（COPR）中稳定铬的方法包括以下步骤：加入酸以消耗COPR的过量碱度，导致pH小于10; 并向COPR中加入化学还原剂以将任何六价铬转化为三价铬。 可以向COPR中加入硫酸盐以降低起伏潜力并提高其岩土稳定性。 经处理的COPR可以包封在适于防止COPR与水如沥青接触的材料中。
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