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Outline
A chemical phase analysis method for nickel in laterite nickel ore was proposed. Calcium carbonate solution was used to leach nickel from nickel sulfate. Acetic acid-sodium sulfite solution was applied to extract nickel from nickel oxide hosted in manganese minerals, and hydrogen peroxide-ammonium acetate solution was adopted to leach nickel from nickel sulfide. Both the nickel content in each phase and the total nickel content were determined by inductively coupled plasma optical emission spectrometry (ICP-OES). The results show that the relative deviation between the sum of nickel contents in each phase and the total nickel content is less than 1%. In addition, the nickel content in each phase is basically consistent with the test results obtained by automatic mineral analyzer. It is verified that this method is accurate and reliable, and can be applied to the nickel phase analysis of laterite nickel ore.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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