Leaching of palladium and rhodium from spent automobile catalysts by microwave roasting

2013 ◽  
Vol 33 (3) ◽  
pp. 913-917 ◽  
Author(s):  
Shixing Wang ◽  
Anran Chen ◽  
Zebiao Zhang ◽  
Jinhui Peng
Keyword(s):  
Microwave Roasting ◽  
Spent Automobile Catalysts ◽  
Automobile Catalysts

Current State and Problems of Analytical Control of Spent Automobile Catalysts (Review)

2018 ◽  
Vol 54 (14) ◽  
pp. 1421-1429 ◽  
Author(s):  
T. Yu. Alekseeva ◽  
Yu. A. Karpov ◽  
O. A. Dal’nova ◽  
V. V. Es’kina ◽  
V. B. Baranovskaya ◽  
...  
Keyword(s):  
Analytical Control ◽  
Current State ◽  
Spent Automobile Catalysts ◽  
Automobile Catalysts

Eco-threat Minimization in HCl Leaching of PGMs from Spent Automobile Catalysts by Formic Acid Prereduction

2017 ◽  
Vol 5 (8) ◽  
pp. 7302-7309 ◽  
Author(s):  
Ha Bich Trinh ◽  
Jae-chun Lee ◽  
Rajiv R. Srivastava ◽  
Sookyung Kim ◽  
Sadia Ilyas
Keyword(s):  
Formic Acid ◽  
Spent Automobile Catalysts ◽  
Automobile Catalysts

Role of water contents on microwave roasting of gold bearing high arsenic sulphide concentrate

2017 ◽  
Vol 161 ◽  
pp. 72-77 ◽  
Author(s):  
Nan Hu ◽  
Wei Chen ◽  
De-xin Ding ◽  
Feng Li ◽  
Zhong-ran Dai ◽  
...  
Keyword(s):  
Microwave Roasting ◽  
Water Contents ◽  
High Arsenic ◽  
Gold Bearing

scholarly journals Gold Extraction from Cyanidation Tailing Using Microwave Chlorination Roasting Method

Metals ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 1025 ◽  
Author(s):  
Fei Zhu ◽  
Libo Zhang ◽  
Haoyu Li ◽  
Shaohua Yin ◽  
Sivasankar Koppala ◽  
...  
Keyword(s):  
Microwave Field ◽  
High Efficiency ◽  
Chloride Concentration ◽  
Treatment Method ◽  
Gold Extraction ◽  
Microwave Roasting ◽  
Gold Mines ◽  
Chlorination Roasting ◽  
New Treatment ◽  
Gold Industry

At present, gold mines are increasingly scarce in the world. The yield of cyanidation tailing (CT) of refractory gold ores with a grade of 10 g/T is huge; however, the effective capitalization of the cyanidation tailing is a significant problem in the gold industry. In this work, a new treatment method, a microwave-roasting process developed. The effect of roasting temperature, calcium chloride concentration, holding time and mineral size on the recovery of Au researched under conventional and microwave conditions. It found that, under the same processing conditions, the Au recovery in the microwave field is much higher than that of conventional conditions. The preliminary reinforcing role of the microwave discussed in the recovery of gold. This might be because of the microwave absorption ability of CaCl2 is much better, heated quickly and the reactions intensified among CaCl2, O2, and H2O. As a result, the extraction of gold in CT drastically increased in the microwave field, and the microwave roasting technology shows the characteristics of environmental protection in terms of low energy consumption and high efficiency.

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