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Application filed by Unimin CorpfiledCriticalUnimin Corp
Publication of MX2011002943ApublicationCriticalpatent/MX2011002943A/en
Publication of MX337807BpublicationCriticalpatent/MX337807B/en
The invention relates to the art of a sand having characteristics making the sand useful in producing molds for casting of metal parts and, more particularly, to a method of improving the quality of a quartz sand having natural characteristics making the sand a "foundry sand.' The invention is a method of improving a naturally occurring quartz foundry sand.
MX2011002943A2010-03-192011-03-18Method of improving quality of quartz foundry sand.
MX337807B
(en)