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:
Dec. 15, 2020
Filed:
Oct. 05, 2018
Applicant:
Cytec Industries Inc., Princeton, NJ (US);
Inventors:
Lei Zhang, Stamford, CT (US);
Xueping Qiu, Stamford, CT (US);
Rajesh Raitani, Buffalo Grove, IL (US);
Assignee:
Cytec Industries Inc., Princeton, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 25/238 (2006.01);
U.S. Cl.
CPC ...
C01B 25/238 (2013.01); C01P 2006/80 (2013.01);
Abstract
Processes for removing/recovering heavy metal ions in solutions containing phosphoric acid by adding reagents having at least one organothiophosphorus compound and at least one surfactant to the solution during the wet-process phosphoric acid production process to form heavy metal complexes, and separating the heavy metal complexes from the solution are provided herein.