公开(公告)号：US5711784A

公开(公告)日：1998-01-27

申请号：US470440

申请日：1995-06-06

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.

公开(公告)号：US07049492B1

公开(公告)日：2006-05-23

申请号：US09856561

申请日：1999-11-23

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

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

IPC分类号： C22B3/24 ,  A01C3/00 ,  A01C21/00

CPC分类号： B09C1/105 ,  C22B3/18 ,  C22B17/00 ,  C22B19/00 ,  Y02P10/234

摘要： A cadmium and zinc hyperaccumulating subspecies from Thlaspi caerulescense and methods for removing or recovering cadmium and zinc from soils by cultivating the Thlaspi caerulescense subspecies on soils containing cadmium and zinc.

摘要翻译： 铊和锌超累积亚种从Thlaspi caerulescense和从土壤中去除或回收镉和锌的方法，通过培养含有镉和锌的土壤上的Thlaspi caerulescense亚种。

公开(公告)号：US07268273B2

公开(公告)日：2007-09-11

申请号：US09437607

申请日：1999-11-10

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： C22B3/00 ,  C22B3/18 ,  C22B23/00 ,  B09C1/10

CPC分类号： B09C1/105 ,  A01H5/00 ,  C22B3/18 ,  C22B23/00 ,  Y02P10/234

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。