发明名称 PROCESS FOR RECOVERING SAND AND BENTONITE CLAY USED IN A FOUNDRY
摘要 <p>Sand, Bentonite clay and organics recovered as foundry waste of bag house dust and molding waste from a green sand mold foundry are reclaimed for reuse in making new green sand molds and mold cores by a multi-step process involving both hydraulic and mechanical separation steps.</p>
申请公布号 WO2002092259(A2) 申请公布日期 2002.11.21
申请号 US2002014929 申请日期 2002.05.13
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