Patent · US Expired

Procedure for preparing silica from calcium silicate

US6716408B1 · kind B1 · utility

1Cited by
5References
18Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 31, 2001
Grant dateApr 6, 2004
Priority date—
Expiry dateJul 31, 2021

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC01P2006/12
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

This invention concerns a procedure for preparing amorphous silica from calcium silicate and CO2, with formation and separation of precipitate CaCO3.

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