发明名称 |
Method of recovering metal carbides |
摘要 |
Selected portions of metal carbide are recovered from scrap material containing pieces of cemented metal carbide having various compositions of metal carbide distributed in a matrix material. The scrap material is treated with a suitable liquid for a sufficient period of time to dissolve the matrix material and form a piece of matrix depleted metal carbide which is introduced as a feed into a ferrofluid material. A magnetic field is passed through the ferrofluid for positioning pieces of metal carbide of the type having a heavier density spaced from pieces of metal carbide of a lighter density. The separated portions of matrix depleted metal carbide are collected to produce metal carbide powder which may be further reprocessed to produce a desired cemented metal carbide.
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申请公布号 |
US4348231(A) |
申请公布日期 |
1982.09.07 |
申请号 |
US19800141017 |
申请日期 |
1980.04.17 |
申请人 |
GTE PRODUCTS CORPORATION |
发明人 |
RITSKO, JOSEPH E.;MACINNIS, MARTIN B.;HENSON, THOMAS L. |
分类号 |
C01B31/30;C22C3/00;(IPC1-7):C22C29/00 |
主分类号 |
C01B31/30 |
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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