The Mineral Content ofRhizona cyperiafter Microwave-Assisted Digestion and Determination by AAS

Microwave-assisted crushing and grinding can improve efficiency and reduce energy consumption. This paper takes rock grains with galena and calcite as the research object to establish a two-dimensional computational model through the finite difference software FLAC2D. It analyzes the process and law of mineral boundary failure under microwave irradiation, and assesses the effects of four factors, namely, microwave irradiation time, power density, mineral crystal size, and mineral content, on mineral boundary failure. Results indicate an optimal microwave irradiation period for the rapid failure of mineral boundary. Moreover, irradiation time and energy consumption can be reduced by increasing the microwave power density. However, irradiation time and energy consumption are basically unchanged when the microwave power density is above a certain threshold. Mineral content slightly affects the microwave irradiation time, whereas mineral crystal size significantly affects the microwave irradiation time. In addition, a larger-sized mineral crystal requires less irradiation time and energy consumption to reach the same failure rate. However, irradiation time and energy consumption slightly change when the crystal size is larger than a certain value.

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Platinum metal recovery from spent CCR platforming catalyst with microwave-assisted digestion method

10.1063/5.0014345 ◽

2020 ◽

Author(s):

Luh Putu Devina Ichasia Prawira ◽

Yuliusman ◽

Khairina Shauma ◽

Azmia Rizka Nafisah ◽

Maretha Putri Ayu

Keyword(s):

Platinum Metal ◽

Metal Recovery ◽

Digestion Method ◽

Microwave Assisted ◽

Microwave Assisted Digestion

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Study of Material Properties for Microwave Assisted Digestion of Fallopia Multiflora for Multielement Analysis by ICP-AES

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.978.15 ◽

2014 ◽

Vol 978 ◽

pp. 15-18

Author(s):

Hong Bo Han ◽

Yi Zhong ◽

Yi Diao ◽

Jian Mei Deng ◽

Min Jie Li

Keyword(s):

Material Properties ◽

Detection Limits ◽

Multielement Analysis ◽

Metallic Elements ◽

Recovery Rates ◽

Microwave Assisted ◽

Relative Standard ◽

Standard Deviations ◽

Environment Condition ◽

Microwave Assisted Digestion

In this work, the contents of all elements including Cu, Fe, Zn, Al, Mn, Cd, Pb, Ti and As were tested by ICP-AES technique, which elements root in Fallopia multiflora from different place such as Renhe county, Miyi county, Qianjiang county and so on. Detection limits ranged 0.0021ug/ml-1 and 0.076ug/ml-1, the relative standard deviations for all these elements were lower than 2%, and recovery rates ranged 95.52% and 107.2%. The consequence showed that there were many metallic elements in Fallopia multiflora from different places; contents of Fe and Al were highest in Renhe county’s sample specially; contents of Mn, Cu, Zn and Ti were moderately high in Yanbian county specially; and contents of As, Cd and Pb were lowest in Qianjiang county. concentrations of elements within Fallopia multiflorafrom different places were different, which may have some relations with the environment where Fallopia multiflora grew. So ,its necessary to monitor the environment condition of plant surronding.

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