Silicate treatment of impure silica sands
Patent
·
OSTI ID:6141016
A process is provided for treating impure silica-containing sands to make them more suitable for foundry use. The sands are treated with aqueous alkali metal silicate solutions and the resulting mixture is heated before the sands are coated with a resin binder. Foundry cores and molds prepared with these treated sands show improved hot and cold tensile strengths.
- Assignee:
- Acme Resin Corporation
- Patent Number(s):
- US 4469517
- OSTI ID:
- 6141016
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360601* -- Other Materials-- Preparation & Manufacture
ALKALI METALS
AQUEOUS SOLUTIONS
CASTING MOLDS
CHALCOGENIDES
CHEMICAL COMPOSITION
DISPERSIONS
ELEMENTS
FOUNDRIES
HEAT TREATMENTS
INDUSTRIAL PLANTS
MECHANICAL PROPERTIES
METALS
MINERALS
MIXTURES
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
ROCKS
SANDSTONES
SEDIMENTARY ROCKS
SILICA
SILICATES
SILICON COMPOUNDS
SILICON OXIDES
SOLUTIONS
TEMPERATURE EFFECTS
TENSILE PROPERTIES
360601* -- Other Materials-- Preparation & Manufacture
ALKALI METALS
AQUEOUS SOLUTIONS
CASTING MOLDS
CHALCOGENIDES
CHEMICAL COMPOSITION
DISPERSIONS
ELEMENTS
FOUNDRIES
HEAT TREATMENTS
INDUSTRIAL PLANTS
MECHANICAL PROPERTIES
METALS
MINERALS
MIXTURES
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
ROCKS
SANDSTONES
SEDIMENTARY ROCKS
SILICA
SILICATES
SILICON COMPOUNDS
SILICON OXIDES
SOLUTIONS
TEMPERATURE EFFECTS
TENSILE PROPERTIES