The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 06, 2010
Filed:
Jul. 10, 2009
Brent R. Constantz, Portola Valley, CA (US);
Laurence Clodic, Sunnyvale, CA (US);
Cecily Ryan, San Jose, CA (US);
Miguel Fernandez, San Jose, CA (US);
Kasra Farsad, San Jose, CA (US);
Sidney Omelon, Los Gatos, CA (US);
Philip Tuet, Milpitas, CA (US);
Paulo Monteiro, El Cerrito, CA (US);
Gordon E. Brown, Jr., Palo Alto, CA (US);
Katharine Geramita, Los Gatos, CA (US);
Brent R. Constantz, Portola Valley, CA (US);
Laurence Clodic, Sunnyvale, CA (US);
Cecily Ryan, San Jose, CA (US);
Miguel Fernandez, San Jose, CA (US);
Kasra Farsad, San Jose, CA (US);
Sidney Omelon, Los Gatos, CA (US);
Philip Tuet, Milpitas, CA (US);
Paulo Monteiro, El Cerrito, CA (US);
Gordon E. Brown, Jr., Palo Alto, CA (US);
Katharine Geramita, Los Gatos, CA (US);
Calera Corporation, Los Gatos, CA (US);
Abstract
Provided are methods for producing carbonate-containing compositions comprising silicon-based material (e.g., pozzolanic material) from a source of carbon dioxide, a divalent cation-containing solution, and a source of proton-removing agents. In such methods, divalent cations of the divalent cation-containing solution are provided by digestion of material comprising metal silicates. Also provided are methods for producing carbonate-containing compositions comprising little or no silicon-based material. In such methods, silicon-based material (e.g., silica, unreacted or undigested silicates, aluminosilicates, etc.) may be separated and processed separately from carbonate-containing compositions. Silicon-based material and carbonate-containing material may be blended at a later stage to produce a pozzolanic material, which may be further processed and blended with, for example, Portland cement.