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:
Aug. 29, 2017
Filed:
Apr. 01, 2014
Applicants:
Patrick A. C. Gane, Rothrist, CH;
Joachim Schölkopf, Killwangen, CH;
Daniel Gantenbein, Elnesvagen, NO;
Daniel E. Gerard, Basel, CH;
Inventors:
Patrick A. C. Gane, Rothrist, CH;
Joachim Schölkopf, Killwangen, CH;
Daniel Gantenbein, Elnesvagen, NO;
Daniel E. Gerard, Basel, CH;
Assignee:
Omya International AG, Oftringen, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 5/16 (2006.01); C02F 1/52 (2006.01); C01F 11/18 (2006.01); B01J 20/04 (2006.01); B01J 20/20 (2006.01); C02F 1/28 (2006.01); C02F 1/56 (2006.01); C02F 1/54 (2006.01); B01J 20/28 (2006.01); C02F 101/30 (2006.01); C02F 101/32 (2006.01); C02F 103/28 (2006.01); C02F 103/32 (2006.01);
U.S. Cl.
CPC ...
C02F 1/5236 (2013.01); B01J 20/043 (2013.01); B01J 20/20 (2013.01); B01J 20/28004 (2013.01); B01J 20/28054 (2013.01); B01J 20/28057 (2013.01); C01F 11/18 (2013.01); C02F 1/281 (2013.01); C02F 1/5245 (2013.01); C02F 1/54 (2013.01); C02F 1/56 (2013.01); B01J 2220/42 (2013.01); C01P 2004/51 (2013.01); C01P 2004/80 (2013.01); C01P 2006/12 (2013.01); C02F 1/283 (2013.01); C02F 2101/305 (2013.01); C02F 2101/327 (2013.01); C02F 2103/28 (2013.01); C02F 2103/32 (2013.01); Y10T 428/2982 (2015.01);
Abstract
The present invention relates to a process for the purification of water, wherein a surface-reacted natural calcium carbonate is brought into contact with the water to be purified, the surface-reacted natural calcium carbonate being the reaction product of a natural calcium carbonate with an acid and carbon dioxide, which is formed in situ by the acid treatment and/or supplied externally.