发明名称 |
Method of making and using nanoscale metal |
摘要 |
When elemental iron is in the presence of chlorinated compounds (contaminants) a naturally occurring reaction takes place and the chlorinated compounds are reduced and form harmless compounds. The production of extremely small metal particles containing elemental iron or a mixture of elemental iron and a second metal is imperative to this method of treating contaminants and is the subject of the present invention. When the particle is made small enough a surfactant is not required for the particle to do its job. The elemental metal may be kept in an elemental state by keeping it in an oxygen-scavenging environment. This is achieved by either suspending the nanoscale metal in a carbohydrate solution or by injecting a carbohydrate solution in atomized form into the gas used to inject the metal into the subsurface soil. Additionally, the present invention is to a method of using elemental metal to reductively dehalogenate halogenated hydrocarbons, to reduce soluble metals and to treat metalloids in subsurface soil.
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申请公布号 |
US6777449(B2) |
申请公布日期 |
2004.08.17 |
申请号 |
US20010026329 |
申请日期 |
2001.12.19 |
申请人 |
CASE LOGIC, INC. |
发明人 |
VANCE DAVID;SUTHERSAN SUTHAN S.;PALMER PETER |
分类号 |
B01J13/00;B09C1/08;(IPC1-7):B01F3/12;B01F17/16;B01J31/00;C09K3/32 |
主分类号 |
B01J13/00 |
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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