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US 2016/0102389 A1Published application
Pelletized composition for molten metal de-oxidation
AssigneeCalcium Silicate Corp., Inc.
InventorMark C. Elizer
Life of this patent
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Abstract
One aspect of the present invention relates to compositions of a pelletized form which are well suited for use as inoculants in the manufacture or casting of molten metals. A further aspect of the invention relates to a method of making such pelletized compositions from waste materials which bear silicon carbide or both silicon carbide and silicon.
Claims12
A pelletized composition made according to a method comprising the steps of:
- (a) providing a material containing moisture and at least:
- (i) silicon carbide or (ii) both silicon carbide and silicon;
- (b) heating said material under a vacuum to dry said material to a total moisture content of less than fifteen percent by weight;
- (c) mixing said material with a binder to form a mixture;
- (d) pelletizing said mixture to agglomerate said particles to form a plurality of discrete pellets of at least one desired size, each of said pellets including a plurality of said particles, and
- (e) hardening said binder to strengthen said pellets.
3 more elements
A pelletized composition made according to a method comprising the steps of:
- (a) providing a material containing moisture and which includes at least silicon carbide and moisture, said moisture including at least one organic;
- (b) heating said material under a vacuum to dry said material to a total moisture content of less than fifteen percent by weight, said vacuum being sufficient to lower a boiling point of said organic below a decomposition temperature of said organic, said heating being carried out at a temperature which exceeds said boiling point of said organic under said vacuum but does not exceed said decomposition temperature of said organic.
- (c) mixing said material with a binder to form a mixture;
- (d) pelletizing said mixture to agglomerate said particles to form a plurality of discrete pellets of at least one desired size, each of said pellets including a plurality of said particles, and
- (e) hardening said binder to strengthen said pellets.
2 more elements
Dependencies are inferred from the claim text.