OPALINE BIOGENIC SILICA/EXPANDED PERLITE COMPOSITE PRODUCTS
A powdered composite filtration medium includes composite particles that include at least one diatomite particle and at least one expanded perlite particle sintered together. The composite powdered filtration medium may include from about 7 wt% to about 90 wt% diatomite, from about 93 wt% to about 1...
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| creator | Peter E. LENZ Qun WANG Scott Kevin PALM |
| description | A powdered composite filtration medium includes composite particles that include at least one diatomite particle and at least one expanded perlite particle sintered together. The composite powdered filtration medium may include from about 7 wt% to about 90 wt% diatomite, from about 93 wt% to about 10 wt% expanded perlite. Less than about 1% total crystalline silica may be present in the medium. The medium may have a permeability of at least 0.25 darcy. The diatomite and expanded perlite may be sintered or calcined with or without a fluxing agent.
Un medio de filtración compuesto en polvo incluye partículas compuestas que incluyen al menos una partícula de diatomita y al menos una partícula de perlita expandida sinterizadas juntas. El medio de filtración compuesto en polvo puede incluir de aproximadamente 7% en peso a aproximadamente 90% en peso de diatomita, de aproximadamente 93% en peso a aproximadamente 10% en peso de perlita expandida. Menos de aproximadamente 1% de sílice cristalina total puede estar presente en el medio. El medio puede tener una permeabilidad de al menos 0.25 darcy. La diatomita y la perlita expandida pueden sinterizarse o calcinarse con o sin un agente fundente. |
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Un medio de filtración compuesto en polvo incluye partículas compuestas que incluyen al menos una partícula de diatomita y al menos una partícula de perlita expandida sinterizadas juntas. El medio de filtración compuesto en polvo puede incluir de aproximadamente 7% en peso a aproximadamente 90% en peso de diatomita, de aproximadamente 93% en peso a aproximadamente 10% en peso de perlita expandida. Menos de aproximadamente 1% de sílice cristalina total puede estar presente en el medio. El medio puede tener una permeabilidad de al menos 0.25 darcy. La diatomita y la perlita expandida pueden sinterizarse o calcinarse con o sin un agente fundente.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING |
| title | OPALINE BIOGENIC SILICA/EXPANDED PERLITE COMPOSITE PRODUCTS |
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