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公开(公告)号：US07214516B2
公开(公告)日：2007-05-08
申请号：US10814788
申请日：2004-04-01
CPC分类号： A01H3/00
摘要： The invention includes methods for (1) extracting metals from soil by the use of plants that extract and accumulate the metal and adding bacteria to the soil that enhances the ability of the plants to extract the metal, and (2) preparing soil for extraction of a metal by plants by adding bacteria to the soil that enhances the ability of plants to extract the metal. It is preferred that the plants be planted in the soil as seeds and that the bacteria added to the soil is also added to the seeds prior to planting.
摘要翻译： 本发明包括（1）通过使用提取和积聚金属的植物从土壤中提取金属并向土壤中添加增强植物提取金属能力的细菌的方法，和（2）制备用于提取金属的土壤 通过向土壤中添加细菌来增强植物提取金属的能力的植物金属。 优选将植物作为种子种植在土壤中，并且在种植之前将添加到土壤中的细菌也加入种子中。
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公开(公告)号：US06786948B1
公开(公告)日：2004-09-07
申请号：US09147721
申请日：1999-02-24
申请人： Rufus L. Chaney , Jay Scott Angle , Yin-Ming Li
发明人： Rufus L. Chaney , Jay Scott Angle , Yin-Ming Li
IPC分类号： C22B324
CPC分类号： C22B23/00 , B09C1/105 , C22B3/18 , Y02P10/234
摘要： The recovery of nickel, cobalt and other metals by phytomining is described. Plants of the Alyssum genus are grown in nickel rich soil. The uptake of nickel is enhanced by maintaining specific soil conditions, including a concentration of calcium between (but not including) 0.128 mM an 5.0 mM and an acidic pH. Ni uptake may be further enhanced by maintaining a ratio of exchangeable Ca/Mg of 0.16-0.40. Uptake may be further enhanced by addition of chelating agents and ammonium based fertilizers.
摘要翻译： 描述了通过植物修复来回收镍，钴和其他金属。 芦荟属植物在富含镍的土壤中生长。 通过维持特定的土壤条件，包括0.128mM，5.0mM和酸性pH（但不包括）之间的钙浓度来增强镍的吸收。 通过保持0.16-0.40的可交换Ca / Mg的比例可以进一步提高Ni吸收。 通过添加螯合剂和铵基肥料可以进一步提高吸收。
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公开(公告)号：US5944872A
公开(公告)日：1999-08-31
申请号：US879813
申请日：1997-06-20
申请人： Rufus L. Chaney , Jay Scott Angle , Alan J.M. Baker , Yin-Ming Li
发明人： Rufus L. Chaney , Jay Scott Angle , Alan J.M. Baker , Yin-Ming Li
CPC分类号： C22B23/00 , C22B3/18 , Y02P10/234
摘要： Nickel/cobalt, as well as platinum and palladium metal family members are recovered from soil by growing Brassicaceae plants, specifically Alyssum in soil containing nickel/cobalt as well as other metals. The soil is conditioned by maintaining a low pH, low calcium concentration, and the addition of ammonium fertilizer and chelating agents thereto. Nickel accumulation on the order of 2.5 percent or better in above-ground tissues is achieved, which permits recovery of the metal by harvesting the above-ground plant materials, drying, and then combusting the same, to oxidize or vaporize organic materials and recover the metals sequestered therein at 10-20 fold higher concentrations than in the soil, in a form which can be used in conventional Ni refinery or smelting operations.
摘要翻译： 镍/钴，以及铂和钯金属家族成员通过种植黄连科植物从土壤中回收，特别是在含有镍/钴以及其他金属的土壤中的Alyssum。 通过保持低pH，低钙浓度以及向其中加入铵肥和螯合剂来调节土壤。 实现了地上组织中镍积累量的2.5％以上，可以通过收集地上植物材料进行回收，干燥，然后将其燃烧，使有机材料氧化或蒸发，并回收 其中的金属以比土壤中高10-20倍的浓度隔离，可以用于常规的镍精炼或熔炼操作。
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公开(公告)号：US5711784A
公开(公告)日：1998-01-27
申请号：US470440
申请日：1995-06-06
CPC分类号： C22B23/00 , C22B3/18 , Y02P10/234
摘要： Nickel/cobalt, as well as platinum and palladium metal family members are recovered from soil by growing Brassicaceae plants, specifically Alyssum in soil containing nickel/cobalt as well as other metals. The soil is conditioned by maintaining a low pH, low calcium concentration, and the addition of ammonium fertilizer and chelating agents thereto. Nickel accumulation on the order of 2.5 percent or better in above-ground tissues is achieved, which permits recovery of the metal by harvesting the above-ground plant materials, drying, and then combusting the same, to oxidize or vaporize organic materials and recover the metals sequestered therein at 10-20 fold higher concentrations than in the soil, in a form which can be used in conventional Ni refinery or smelting operations.
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