发明名称 |
Process for treating zircon-containing foundry sand |
摘要 |
Process for treating zircon-containing foundry sand by intimately contacting the sand with an aqueous solution of an alkali metal silicate and isolating the sand from the solution. The treated sand is useful as the sand component of resin molds and cores.
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申请公布号 |
US4115345(A) |
申请公布日期 |
1978.09.19 |
申请号 |
US19760740491 |
申请日期 |
1976.11.10 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
BUSHEY, WILLIAM RAYMOND |
分类号 |
B22C1/18;(IPC1-7):C08K9/02 |
主分类号 |
B22C1/18 |
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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