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:
Jan. 26, 2021
Filed:
Jul. 21, 2015
Applicant:
Halliburton Energy Services, Inc., Houston, TX (US);
Inventors:
Qi Liang, Richmond, VA (US);
William Brian Atkins, Houston, TX (US);
Assignee:
Halliburton Energy Services, Inc., Houston, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C01B 32/28 (2017.01); G01R 33/12 (2006.01); C30B 29/04 (2006.01); B01J 19/08 (2006.01); B01J 19/12 (2006.01); C30B 33/00 (2006.01); C25F 1/00 (2006.01); C25F 7/00 (2006.01); G01N 21/87 (2006.01); G01N 23/20 (2018.01); G01N 21/84 (2006.01);
U.S. Cl.
CPC ...
C01B 32/28 (2017.08); B01J 19/088 (2013.01); B01J 19/126 (2013.01); C25F 1/00 (2013.01); C25F 7/00 (2013.01); C30B 29/04 (2013.01); C30B 33/00 (2013.01); G01R 33/12 (2013.01); B01J 2219/0807 (2013.01); B01J 2219/0871 (2013.01); B01J 2219/0879 (2013.01); B01J 2219/0894 (2013.01); C01P 2002/72 (2013.01); C01P 2004/02 (2013.01); C01P 2006/80 (2013.01); G01N 21/87 (2013.01); G01N 23/20 (2013.01); G01N 2021/8477 (2013.01);
Abstract
The present disclosure relates a method of purifying diamond by removing carbon contaminants from diamond grains in the diamond by a plasma cleaning process at a temperature at which metal inclusion contaminants in the diamond grains crack the diamond grains from within, and removing metal contaminants from the diamond in a chemical or electrochemical cleaning process.