Patent · US Active

Facile, low-energy routes for the production of hydrated calcium and magnesium salts from alkaline industrial wastes

US11560318B2 · kind B2 · utility

0Cited by

1References

11Claims

0Family size

Assignee

The Regents of the University of California · US

Inventors

Gaurav Sant · Los Angeles, US
Laurent G. Pilon · Los Angeles, US
Erika Blanca Callagon La Plante · Los Angeles, US
Bu Wang · Los Angeles, US
Zongsu Wei · Los Angeles, US
Sara Vallejo Castaño · Los Angeles, US

Key dates

Filing date	Aug 17, 2018
Grant date	Jan 24, 2023
Priority date	—
Expiry date	Oct 9, 2039

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P40/18
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Divalent ions are extracted from solids by leaching to form a divalent ion-containing solution. The divalent ion-containing solution is subjected to concentration to form a concentrated divalent ion-containing solution. Precipitation of a divalent ion hydroxide salt is induced from the concentrated divalent ion-containing solution. In other cases, the concentrated divalent ion-containing solution is exposed to carbon dioxide to induce precipitation of a divalent ion carbonate salt.

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