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:
Oct. 28, 2014
Filed:
Jul. 24, 2008
Hui Zhang, Sugar Land, TX (US);
Robert L. Horton, Sugar Land, TX (US);
Charles Svoboda, Katy, TX (US);
Frank E. Evans, The Woodlands, TX (US);
Hui Zhang, Sugar Land, TX (US);
Robert L. Horton, Sugar Land, TX (US);
Charles Svoboda, Katy, TX (US);
Frank E. Evans, The Woodlands, TX (US);
M-I L.L.C., Houston, TX (US);
Abstract
A method of reclaiming a formate brine may include increasing the pH of a spent formate brine fluid comprising water-soluble polymers; treating the fluid with an oxidizing agent; and removing at least a portion of suspended solids from the fluid. Further, a method of reclaiming a formate brine may include lowering the pH of the spent formate brine fluid comprising water-soluble polymers; increasing the pH of the spent formate brine fluid to initiate precipitation of materials solubilized in the fluid; treating the fluid with an oxidizing agent to break down remaining water-soluble polymer; and recovering at least a portion of the formate brine.