Determination of rhodium content in chemical catalytic furnace ash by ICP-AES after hydrogen gas reduction.

Autor: LUO Jingdi, LI Yuping, YANG Xiaotao, LUO Xian, JIN Yunjie, QIU Lei, MA Yuan, WANG Yingjin
Předmět:
Zdroj: Precious Metals / Guijinshu; 2023 Special Issue, Vol. 44, p126-129, 4p
Abstrakt: Chemical furnace ash was generated during the use of pernicious metal alloy catalytic net, which has high recovery value. Because of the ash contains organic matter and oxidized stateRhodium, it difficult to dissolve. In this paper, hydrogen was reduced after ignition, and hydrochloric acid-hydrogen peroxide solution was used for airtight digestion, the obtained solution was determined by ICP-AES. For Chemical catalytic furnace ash with Rhodium concentration rage of 0.01%~5.0%, the relative standard deviation (RSD) was less than 2% (n=7), and the recovery was 95.50%~104.46%. The result were in agreement with the nominal values of quality control sample, meeting the requirement for recycling trade. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index