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. 14, 2026
Filed:
Mar. 06, 2024
Applicant:
L'air Liquide, Societe Anonyme Pour L'etude ET L'exploitation Des Procedes Georges Claude, Paris, FR;
Inventors:
Oliveira Araujo, Miraflores, PT;
Philippe Campo, Bagneux, FR;
Bruno Alban, Bagneux, FR;
Bruno Veiga, Arruda, PT;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21C 11/06 (2006.01); D21H 11/04 (2006.01);
U.S. Cl.
CPC ...
D21C 11/066 (2013.01); D21C 11/063 (2013.01); D21H 11/04 (2013.01);
Abstract
The present application relates to a system and a method for the removal of non-process elements, such as Kor Cl, from electrostatic precipitator ashes in a kraft pulp process comprising the addition of a strong acid containing sulfur and COin separate steps in the ash treatment step.