Enrichment of scandium and aluminum from limonitic laterite during the nitric acid pressure leaching process

2022 ◽  
pp. 105819
Author(s):  
Zhengen Zhou ◽  
Baozhong Ma ◽  
Chengyan Wang ◽  
Yongqiang Chen ◽  
Wenjuan Zhang ◽  
...  
Keyword(s):  
Nitric Acid ◽  
Pressure Leaching ◽  
Leaching Process

Microwave pretreatment for enhanced selective nitric acid pressure leaching of limonitic laterite

2021 ◽  
Vol 28 (10) ◽  
pp. 3050-3060
Author(s):  
Fei He ◽  
Bao-zhong Ma ◽  
Cheng-yan Wang ◽  
Yu-tian Ma ◽  
Edouard Asselin ◽  
...  
Keyword(s):  
Nitric Acid ◽  
Pressure Leaching ◽  
Microwave Pretreatment

Variation law of gas holdup in an autoclave during the pressure leaching process by using a mixed-flow agitator

2017 ◽  
Vol 24 (8) ◽  
pp. 876-883 ◽  
Author(s):  
Lei Tian ◽  
Yan Liu ◽  
Jun-jie Tang ◽  
Guo-zhi Lü ◽  
Ting-an Zhang
Keyword(s):  
Gas Holdup ◽  
Pressure Leaching ◽  
Mixed Flow ◽  
Leaching Process

Computer simulation of a molybdenite leaching process using dilute nitric acid

1987 ◽  
Vol 17 (2) ◽  
pp. 133-154 ◽  
Author(s):  
G.J. Parsons ◽  
J.K. Brimacombe ◽  
E. Peters
Keyword(s):  
Computer Simulation ◽  
Nitric Acid ◽  
Leaching Process ◽  
Dilute Nitric Acid

scholarly journals Fault Diagnosis for an Industrial High Pressure Leaching Process with a Monitoring Dashboard

2018 ◽  
Vol 51 (21) ◽  
pp. 117-122
Author(s):  
Adriaan Haasbroek ◽  
Johannes J. Strydom ◽  
John T. McCoy ◽  
Lidia Auret
Keyword(s):  
High Pressure ◽  
Fault Diagnosis ◽  
Pressure Leaching ◽  
Leaching Process

Pressure leaching of a lead–zinc–silver concentrate with nitric acid at moderate temperatures between 130 and 170°C

2010 ◽  
Vol 104 (1) ◽  
pp. 8-13 ◽  
Author(s):  
R. Zárate-Gutiérrez ◽  
G.T. Lapidus ◽  
R.D. Morales
Keyword(s):  
Nitric Acid ◽  
Pressure Leaching ◽  
Lead Zinc

Aluminum Removal from Leach Liquor of Nitric Acid Pressure Leaching Laterite Ores

2013 ◽  
Vol 634-638 ◽  
pp. 3191-3195 ◽  
Author(s):  
Bao Zhong Ma ◽  
Cheng Yan Wang ◽  
Wei Jiao Yang ◽  
Fei Yin ◽  
Yong Qiang Chen
Keyword(s):  
Nitric Acid ◽  
Reaction Temperature ◽  
Traditional Method ◽  
Filtration Rate ◽  
Ph Value ◽  
Ageing Time ◽  
Leach Liquor ◽  
Precipitation Method ◽  
Pressure Leaching ◽  
Laterite Ores

In this paper, the removal of aluminum in leach liquor of nitric acid pressure leaching laterite was investigated, and a new method of aluminum removal by precipitation with calcium sulphide was presented. The effect of reaction temperature, pH value before ageing and ageing time on the removal of aluminum were examined in details. The optimum conditions were determined as follows: reaction temperature 40 °C, pH 3.9~4.1 (before aging) and aging time 30 min. Compared with the traditional precipitation method, the loss of nickel and cobalt was less than 1% in the obtained aluminum precipitate slag, which is 3% lower than that by the traditional method; the filtration rate of aluminum precipitate slurry was faster than the traditional method, when the filtration press was controlled at -0.04 MPa, the filtration rate of aluminum precipitate slurry could reach 0.109 m3/(h•m2), which is 6.5 times higher than that obtained by the traditional method.

Pilot-scale plant study on the innovative nitric acid pressure leaching technology for laterite ores

2015 ◽  
Vol 155 ◽  
pp. 88-94 ◽  
Author(s):  
Baozhong Ma ◽  
Weijiao Yang ◽  
Bo Yang ◽  
Chengyan Wang ◽  
Yongqiang Chen ◽  
...  
Keyword(s):  
Nitric Acid ◽  
Pilot Scale ◽  
Pressure Leaching ◽  
Laterite Ores
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