Invention Application
US20170073795A1 METHOD FOR LEACHING PRECIOUS METALS CONTAINED IN WASTE DENITRIFICATION CATALYST USING PRESSURE LEACHING PROCESS
审中-公开
使用压力浸出工艺浸出废水脱硫催化剂中的重金属的方法
- Patent Title: METHOD FOR LEACHING PRECIOUS METALS CONTAINED IN WASTE DENITRIFICATION CATALYST USING PRESSURE LEACHING PROCESS
- Patent Title (中): 使用压力浸出工艺浸出废水脱硫催化剂中的重金属的方法
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Application No.: US15123624Application Date: 2015-02-27
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Publication No.: US20170073795A1Publication Date: 2017-03-16
- Inventor: Jin-Young LEE , Hoo-In LEE
- Applicant: KOREA INSTITUTE OF GEOSCIENCE AND MINERAL RESOURCES
- Priority: KR10-2014-0026130 20140305
- International Application: PCT/KR2015/001944 WO 20150227
- Main IPC: C22B34/36
- IPC: C22B34/36 ; C22B7/00 ; C22B34/22
Abstract:
The present invention relates to a method for leaching precious metals contained in a waste denitrification catalyst by using a pressure leaching process, and more specifically, to a method for leaching precious metals contained in a waste denitrification catalyst by using a pressure leaching process, the method comprising the steps of: forming a mixture by mixing a waste denitrification catalyst with a sodium salt solution; and leaching vanadium and tungsten contained in the mixture by feeding the mixture into a sealed pressurized reactor, and then heating and stirring the mixture.
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