The Principal requirements, purpose of this test was to: through the test sample provided by the multi-element analysis, mineral identification, to identify their mineral composition, can be developed using graphite determining fixed carbon, the specific content of rutile. On this basis, carry out multi-program selectivity test, determine the graphite carbon and rutile product indicators, provide the concentrate grade and recovery rate of the graphite product, and combine the market price and the general production cost of the process to conduct economic analysis. Whether the graphite (rutile) mine has a recoverable value provides guidance.

1. Shaanxi Yangxiang Wenzizi graphite (rutile) ore mainly uses carbonaceous material as graphite. The main industrial titanium mineral is rutile. The characteristic of graphite is that the mineral particle size is small, but the solid embedded crystal inclusion body is rare, the composition is pure, and the graphite quality is relatively better.

2. The focus of this experiment is to determine the development value of graphite resources in the Wenzizi graphite (rutile) mine. Therefore, for the ore characteristics of the samples, a multi-program comparison test was carried out, and the advanced technology of graphite beneficiation at home and abroad was used for reference. A rough grinding, two-stage re-grinding, one rough selection, one sweeping, and eight selection processes.

After 20 consecutive days of experiments, the graphite concentrate has 87.05% fixed carbon and the recovery rate is 79.11%. The tailings comprehensively recovers rutile. After enrichment, the TiO ₂ can reach 9.39%, and the recovery rate is 44.62%. The preliminary conclusion is: graphite in the Wengzigou graphite (rutile) ore is optional, and the rutile recovery test also has certain effects; if the closed-circuit test and optimization of the test conditions, the product grade and recovery rate of the graphite concentrate will be further improved; The recycling of rutile will also achieve more desirable indicators. Therefore, the mine has economic value that can be mined.

The Wenzizi graphite (rutile) mine in Yangxian County, Shaanxi Province is designed according to the small ore dressing plant that treats 500 tons of ore per day. After preliminary estimation, the annual net profit can reach 1,327,500 yuan.

In summary, it can be determined that the Wenzizi graphite (rutile) mine in Yangxian County, Shaanxi Province has economic value that can be developed.

Due to the tight test time requirements, some process conditions have not been studied in detail. If closed-circuit tests are carried out and the test conditions are optimized, the concentrate grade and recovery rate of the graphite concentrate will be further improved; the recovery of rutile will also obtain more desirable indicators.

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