公开(公告)号：US20080134364A1

公开(公告)日：2008-06-05

申请号：US11896011

申请日：2007-08-29

申请人： Rufus L. Chaney ,  J. Scott Angle ,  Yin-Ming Li ,  Alan J.M. Baker

发明人： Rufus L. Chaney ,  J. Scott Angle ,  Yin-Ming Li ,  Alan J.M. Baker

IPC分类号： A01H5/00 ,  C22B23/00 ,  B09C1/00

CPC分类号： C22B23/00 ,  B09C1/105 ,  C22B3/18 ,  C22B7/001 ,  Y02P10/214 ,  Y02P10/234 ,  Y02P10/238

摘要： The invention relates to recovering metals, such as nickel and cobalt, by phytomining or phytoextracting soils rich in metals wherein the desired metal is selectively accumulated in hyperaccumulator plants by adjusting the soil pH. The metals are ultimately recovered from above-ground plant tissues at economically acceptable levels without further contaminating the metal-containing sites. The invention also relates to metal-hyperaccumulating plants.

摘要翻译： 本发明涉及通过植入或植入富含金属的土壤来回收金属，例如镍和钴，其中所需金属通过调节土壤pH值选择性地积累在超累积器植物中。 金属最终以经济可接受的水平从地上植物组织中回收，而不会进一步污染含金属的位点。 本发明还涉及金属超积累植物。

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

IPC分类号： C22B3/18 ,  C22B23/00

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。