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. 29, 2015
Filed:
Nov. 21, 2011
Applicants:
John Richardson, Hanover, VA (US);
Rob Bedinger, Richmond, VA (US);
James Wilkins, Richmond, VA (US);
Inventors:
John Richardson, Hanover, VA (US);
Rob Bedinger, Richmond, VA (US);
James Wilkins, Richmond, VA (US);
Assignee:
CHEMTREAT, INC., Glen Allen, VA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C02F 1/00 (2006.01); C02F 1/20 (2006.01); C02F 1/68 (2006.01); C02F 5/10 (2006.01); B01D 1/16 (2006.01); B01D 3/00 (2006.01); B01D 3/34 (2006.01);
U.S. Cl.
CPC ...
C02F 5/10 (2013.01); B01D 1/16 (2013.01); C02F 2303/08 (2013.01);
Abstract
Disclosed are methods of operating steam generators, particularly evaporators, in hard water environments characterized by high Si and Mg content in which the pHof the feed water stream is maintained within a range of about 11 to 12 in order to reduce, eliminate or remove scale from internal evaporator surfaces. Additional components may be added to the feed water stream including surfactants, chelants, dispersants, sequestrants and mixtures thereof.