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In the fine filtration production of filter liquor of monazite alkali decomposition, the use of iron plate and frame filter had problems such as poor filtration effect, low automation level, and significant temperature drop after filtration. Improvements were made to the existing fine filtration process, and the applicability of surface filter as fine filtration equipment for filter liquor of monazite alkali decomposition was studied. The results show that the surface filter with PP and PTFE membrane materials has a filtration retention rate of 93% after one hour, which is higher than the retention rate of the iron plate and frame filter. Compared with the iron plate and frame filtration, the surface filter has better filtration efficiency, higher automation level, and better solution insulation effect, which can be well applied in the fine filtration of filter liquor of monazite alkali decomposition.
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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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