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With the development of heavy industries, more and more foundries and established for melting iron and steel. Spent foundry sands are by products generated by metal casting industry, typically consisting of even particle sized sands with various additives and some metals affiliated with specific casting process. The new raw sands to make casting molds are ...

Spent foundry sand applications Spent foundry sands are by products generated by the metal casting industry. Foundries purchase new, virgin sand to make casting molds, and the sand is reused numerous times within the foundry. However, heat and mechanical abrasion eventually render the sand unsuitable for use in casting molds, and a portion of the sand ...