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. 03, 2024
Filed:
Nov. 13, 2018
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Mi Ri Kim, Daejeon, KR;
Myung Eun Oh, Daejeon, KR;
Kyoung Shil Oh, Daejeon, KR;
Je Kyun Lee, Daejeon, KR;
Assignee:
LG CHEM, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 1/38 (2023.01); C01B 33/145 (2006.01); C01B 33/146 (2006.01); C01B 33/155 (2006.01); C01B 33/158 (2006.01); C01B 33/159 (2006.01); C01C 1/242 (2006.01); C02F 1/52 (2023.01); F16L 59/07 (2006.01); C02F 101/16 (2006.01);
U.S. Cl.
CPC ...
C01B 33/1585 (2013.01); C01B 33/145 (2013.01); C01B 33/146 (2013.01); C01B 33/155 (2013.01); C01B 33/159 (2013.01); C01C 1/242 (2013.01); C02F 1/385 (2013.01); C02F 1/5236 (2013.01); F16L 59/07 (2013.01); C02F 2101/16 (2013.01);
Abstract
Provided is a method for recycling supercritical waste liquid and a method for producing a silica aerogel blanket capable of reducing the production costs and preventing the deterioration in thermal insulation performance of a silica aerogel blanket, the method including adding sulfuric acid to supercritical waste liquid to remove ammonium ions in the form of ammonium sulfate salt, the ammonium ions which are present in the supercritical waste liquid, and reusing supercritical waste liquid from which the ammonium ions are removed.