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Niobium titanium uranium ore flotation process

A niobium-titanium-uranium ore and flotation technology, which is applied in flotation, solid separation, etc., can solve the problems of high uranium extraction cost and low grade of uranium concentrate, and achieve the effects of good selectivity, excellent indicators and cost saving

Inactive Publication Date: 2017-07-07
BEIJING RESEARCH INSTITUTE OF CHEMICAL ENGINEERING AND METALLURGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The above-mentioned existing technology is to remove impurity minerals by reverse flotation from the gravity concentration ore, and the remaining part is used as uranium concentrate. The grade of the obtained uranium concentrate is not high, and the extraction cost of uranium is still high

Method used

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  • Niobium titanium uranium ore flotation process
  • Niobium titanium uranium ore flotation process
  • Niobium titanium uranium ore flotation process

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Embodiment 1

[0035] Adopt collector copper-iron reagent of the present invention, carry out laboratory flotation experiment research to certain niobium-titanium-uranium ore, its main uranium mineral is niobium-titanium-uranium ore, and gangue mineral mainly contains microplagioclase, quartz, Neonite, albite, iron-rich sodium amphibole, biotite, calcite, etc. The grade of uranium in the flotation raw ore is 0.077%. In the flotation process, add collector 2000g / t of the present invention, stir 5min, auxiliary collector kerosene 200g / t, stir 5min, foaming agent 2 # Oil 50g / t, stirring for 5min. Inflatable bubbling flotation for 5 to 8 minutes. The uranium concentrate with a yield of 9.23%, a uranium content of 0.766%, and a recovery rate of 91.75% can be obtained through a closed-circuit process of one roughing, one beneficiation and one sweeping. The flotation results show that the niobium-titanium ore is better enriched by using the flotation agent of the present invention, and the recov...

Embodiment 2

[0039] After preliminary enrichment of a certain niobium-titanium-uranium ore, the uranium grade can reach 0.065% after gravity separation, and the uranium grade can reach 0.078% after flotation to remove sulfide ore and magnetic separation to remove magnetite. When the grinding fineness -0.074mm accounts for 60%, adopt collector copper-iron reagent of the present invention to flotation niobium-titanium-uranium ore, change the consumption of copper-iron reagent to flotation raw ore, auxiliary collector kerosene dosage 200g / t , frother 2 # See Table 2 for the flotation index of uranium under the conditions of oil consumption of 40g / t, pulp temperature of 30°C, primary roughing, and different dosages of copper and iron collectors.

[0040] Table 2 The test results of different copper and iron reagent dosages

[0041]

[0042] It can be seen from Table 2 that when the uranium grade of the flotation raw ore is between 0.05% and 0.2%, a better flotation effect is obtained when ...

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Abstract

The invention belongs to the technical field of beneficiation, and in particular, relates to a niobium titanium uranium ore capturing agent and a flotation process thereof. An used reagent N-nitrosobenzene hydroxylamine ammonium (commonly known as a copper iron reagent) is analyzed to serve as the niobium titanium uranium ore capturing agent for positive flotation of a niobium titanium uranium ore to obtain excellent flotation technical indexes. The copper iron reagent is used as the capturing agent; kerosene is used as an auxiliary capturing agent; when the flotation raw ore uranium grade is 0.077%, once roughing, once selection and once scavenging closed-loop flow are adopted to obtain an uranium concentrate with a yield of 9.23%, an uranium content of 0.766% and a yield of 91.75%; and the flotation tailing uranium grade can be reduced to 0.007%. The uranium grade can be enriched by 10 times through flotation; the obtained flotation concentrate quantity is about 10% of that before flotation; and the hydrometallurgy is performed for the flotation concentrate. The hydrometallurgy capacity can be largely reduced after beneficiation; such costs as hydrometallurgy medicament, water and electricity are saved; and the flotation tailing can be directly discarded.

Description

technical field [0001] The invention belongs to the technical field of mineral processing, and in particular relates to a flotation process of niobium-titanium-uranium ore and a collector for niobium-titanium-uranium ore. Background technique [0002] Niobium-titanium-uranium ore is an important uranium resource. A niobium-titanium-uranium ore in my country has huge reserves of uranium resources, but its grade is low and difficult to leach, so it has not been developed and utilized so far. There are few beneficiation processes for niobium-titanium-uranium ore. One method is to use the gravity separation method for preliminary enrichment-the gangue minerals are selected through flotation through mixed concentrates to obtain rough concentrates containing uranium and lead; The uranium concentrate and lead concentrate are finally obtained through the selection, but the grade of the uranium concentrate selected in this way is low, containing only 0.156% uranium. It is also repor...

Claims

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Application Information

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IPC IPC(8): B03D1/004B03D1/02B03D101/02B03D101/04
CPCB03D1/004B03D1/02B03D2201/02B03D2201/04
Inventor 李广刘志超强录德唐宝斌武翠莲
Owner BEIJING RESEARCH INSTITUTE OF CHEMICAL ENGINEERING AND METALLURGY
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