Invention Grant
- Patent Title: Method of removing asbestos from asbestos-containing materials by 99% through low temperature heat treatment
- Patent Title (中): 通过低温热处理从含石棉材料中除去99％的石棉的方法
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Application No.: US14189519Application Date: 2014-02-25
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Publication No.: US09079055B2Publication Date: 2015-07-14
- Inventor: Young-Nam Jang , Soo-Chun Chae , Myung-Kyu Lee , Hye-In Won , Kyoung-Won Ryu
- Applicant: KOREA INSTITUTE OF GEOSCIENCE AND MINERAL RESOURCES
- Applicant Address: KR Deajeon
- Assignee: KOREA INSTITUTE OF GEOSCIENCE AND MINERAL RESOURCES
- Current Assignee: KOREA INSTITUTE OF GEOSCIENCE AND MINERAL RESOURCES
- Current Assignee Address: KR Deajeon
- Agency: Christie, Parker & Hale, LLP
- Priority: KR10-2013-0020445 20130226; KR10-2013-0031465 20130325; KR10-2014-0010260 20140128
- Main IPC: A62D3/36
- IPC: A62D3/36 ; B09B3/00 ; A62D101/41
Abstract:
Disclosed is a method of removing asbestos from an asbestos-containing material by 99% through low temperature heat treatment. The method includes mixing an asbestos-containing material with an oxalic acid at a weight ratio in a range of 1:0.002 to 1:1 and performing heat treatment with respect to a mixture at a temperature of 90° C. to 110° C. to remove asbestos from the asbestos-containing material by 99% or more.
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