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Method for flotation separation of iron oxide ore in cassiterite sulphide slime ore by using combined inhibitor

A technology for combining inhibitors and iron oxide ore, which is applied to the inhibitor of iron oxide minerals in the flotation of high-iron cassiterite sulfide slime, and the field of combined inhibitors of mineral flotation, which can solve the removal/inhibition of iron oxide minerals. Problems such as poor effect, to achieve the effect of concentrate treatment, low dosage and convenient use

Inactive Publication Date: 2020-07-24
云南锡业研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of poor removal / inhibition effect of iron oxide minerals in the existing cassiterite flotation, to provide a kind of high selectivity, non-toxic, harmless, less consumption, and easy to handle concentrate Combination depressant for flotation of iron oxide minerals in cassiterite sulfide ore slime

Method used

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  • Method for flotation separation of iron oxide ore in cassiterite sulphide slime ore by using combined inhibitor
  • Method for flotation separation of iron oxide ore in cassiterite sulphide slime ore by using combined inhibitor
  • Method for flotation separation of iron oxide ore in cassiterite sulphide slime ore by using combined inhibitor

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Embodiment 1

[0018] The method of separating iron oxide ore from cassiterite sulfide ore mud ore by combined inhibitor flotation, the material processed in this embodiment is the cassiterite sulfide ore mud ore gravity separation operation of a certain dressing plant in Yunnan after desliming and desulfurization of the mud ore , Slime materials with -10μm particle size content figure 1 As shown, the flotation separation method is as follows:

[0019] (1) Sodium carbonate is added into water at room temperature, fully stirred for 2-5 minutes, and prepared into a sodium carbonate solution with a mass concentration of 5% for use; at room temperature, sodium tripolyphosphate is added into water, fully stirred for 2-5 minutes, and prepared into a mass concentration 0.5% sodium tripolyphosphate solution is ready for use; salicylic hydroxamic acid is used as a collector, and salicylic hydroxamic acid and 20% of its mass of solid sodium carbonate are added to hot water at 80°C-100°C, fully stirred ...

Embodiment 2

[0029] The method of separating iron oxide ore from cassiterite sulfide ore mud ore by combined inhibitor flotation, the material processed in this embodiment is the cassiterite sulfide ore mud ore gravity separation operation of a certain dressing plant in Yunnan after desliming and desulfurization of the mud ore , Slime materials with -10μm particle size content <15%, sulfur grade <0.5%. The material contains 0.451% tin and 11.49% iron, and the iron mainly exists in the form of hematite and limonite with a distribution rate of 67.76%. The combination inhibitor is composed of sodium carbonate and sodium tripolyphosphate, and the operation of flotation separation of iron oxide ore in cassiterite sulfide ore slime includes roughing, sweeping and beneficiation of cassiterite sulfide ore in sequence, Including one rough, two sweeps and three fines; the flotation separation method is as follows:

[0030] (1) Sodium carbonate is added into water at room temperature, fully stirred ...

Embodiment 3

[0040] The method of separating iron oxide ore from cassiterite sulfide ore mud ore by combined inhibitor flotation, the material processed in this embodiment is the cassiterite sulfide ore mud ore gravity separation operation of a certain dressing plant in Yunnan after desliming and desulfurization of the mud ore , Slime materials with -10μm particle size content <15%, sulfur grade <0.5%. The material contains 1.09% tin and 9.82% iron, and the iron mainly exists in the form of hematite and limonite, with a distribution rate of 79.63%. The combination inhibitor is composed of sodium carbonate and sodium tripolyphosphate, and the operation of flotation separation of iron oxide ore in cassiterite sulfide ore slime includes roughing, sweeping and beneficiation of cassiterite sulfide ore in sequence, Including one rough, two sweeps and three fines; the flotation separation method is as follows:

[0041] (1) Sodium carbonate is added into water at room temperature, fully stirred f...

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Abstract

The invention discloses a method for flotation separation of iron oxide ore in cassiterite sulphide slime ore by using a combined inhibitor. The combined inhibitor is composed of sodium carbonate andsodium tripolyphosphate. The operation of flotation separation of the iron oxide ore in the cassiterite sulphide ore slime ore comprises the following steps: roughing, scavenging and concentrating thecassiterite sulphide ore in sequence; in the roughing process, a sodium carbonate solution is firstly used for adjusting the pH of ore pulp to be 6-8, then a sodium tripolyphosphate solution, a collecting agent salicylhydroxamic acid and an auxiliary collecting agent P86 are added, and cassiterite and iron oxide minerals are separated through roughing, scavenging and concentration. The combined inhibitor has the advantages of being high in selectivity, soluble at normal temperature, non-toxic, harmless, low in dosage, easy in concentrate treatment and the like and can realize effective separation of cassiterite and iron oxide minerals and further improves the quality of tin concentrate.

Description

technical field [0001] The invention relates to a combined inhibitor for mineral flotation, in particular to an inhibitor for iron oxide minerals in the flotation of high-iron cassiterite sulfide ore mud ore, and belongs to the technical field of mineral flotation agents. Background technique [0002] Cassiterite contains 78.6% tin, which is the most common tin mineral and the main ore mineral of tin. Due to the large difference in specific gravity between cassiterite and gangue components, gravity separation is the main method for cassiterite separation and has been widely used. Cassiterite has mechanical properties such as high hardness, high density, and brittleness. It is easily crushed during the grinding process. The recovery of this part of fine-grained cassiterite by gravity separation is relatively limited, resulting in a large loss of tin metal. . According to statistics, 80% of the lost tin metal in my country is lost from ore slime, and about one-third of the t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/002B03D1/014B03B1/04B03D101/02B03D101/06B03D103/02
CPCB03B1/04B03D1/002B03D1/014B03D2201/02B03D2201/06B03D2203/02
Inventor 王烨仇云华张慧张翔温晓娜
Owner 云南锡业研究院有限公司
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