发明名称 |
VERFAHREN ZUR PHYTO-EXTRAKTION VON NICKEL, KOBALT UND ANDEREN METALLEN AUS DEM ERDREICH |
摘要 |
<p>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.</p> |
申请公布号 |
DE69720070(T2) |
申请公布日期 |
2003.12.24 |
申请号 |
DE1997620070T |
申请日期 |
1997.06.20 |
申请人 |
THE UNIVERSITY OF SHEFFIELD, SHEFFIELD;UNIVERSITY OF MARYLAND COLLEGE PARK, COLLEGE PARK |
发明人 |
CHANEY, RUFUS L.;ANGLE, JAY SCOTT;BAKER, ALAN J.M.;LI, YIN-MING |
分类号 |
B09C1/10;C22B3/18;C22B23/00;(IPC1-7):C22B3/18 |
主分类号 |
B09C1/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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