Patent · US Active

Cascading purification

US8216539B2 · kind B2 · utility

0Cited by

10References

21Claims

0Family size

Assignee

Calisolar, Inc. · US

Inventors

Scott Nichol · Toronto, CA
Anthony Tummillo · Toronto, CA
Dan Smith · Brampton, CA

Key dates

Filing date	Apr 14, 2010
Grant date	Jul 10, 2012
Priority date	—
Expiry date	Jul 13, 2030

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC01B33/037
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

The present invention provides a method of purifying a material using a cascading dissolution and washing process. The dissolution and washing processes can contain single or multiple stages. Water and dissolving chemicals are recycled through the process towards the beginning of the process.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.