Flotation collector for silicate minerals

A technology of silicate minerals and collectors, applied in flotation, solid separation, etc., can solve the problems of high content, poor selectivity, difficult defoaming, etc., and achieve strong collecting ability, strong selectivity, and easy defoaming. Effect

Inactive Publication Date: 2013-02-27
GUIZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the collophosite flotation process, the anion collector has a good separation effect on the carbonate in the collophanite, but the anion collector generally has no obvious flotation effect on the silicate in the collophanite, so , when the silicate content in collophosite is high, the traditional anion collector can no longer meet the production requirements, and it cannot effectively reduce the silicate content in the concentrate, resulting in the Al 2 o 3 , Fe 2 o 3 , SiO 2 High content is not conducive to the subsequent preparation of phosphoric acid
In the bauxite flotation process, fatty acid collectors are generally used for desiliconization in the positive flotation process, but this method has the disadvantages of large floating amount and large reagent consumption.
[0003] Traditional cationic collectors include dodecylamine, dodecyl trimethyl quaternary ammonium salt, ether amine, etc. Although these traditional cationic collectors have certain flotation desiliconization performance, in actual production, they are all There are many common defects, such as: poor selectivity, more foam, difficult to defoam, high product viscosity, difficult transmission, etc.

Method used

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  • Flotation collector for silicate minerals
  • Flotation collector for silicate minerals
  • Flotation collector for silicate minerals

Examples

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Embodiment 1

[0014] First prepare the diamine compound of the present invention,

[0015] (1) When R 1 and R 2 for dodecyl, R 3 When being ethyl, the synthetic reaction of described diamine compound is as follows:

[0016]

[0017] (2) When R 1 and R 2 is octadecyl; R 3 For butyl, the synthetic reaction of described diamine compounds is as follows:

[0018]

[0019] (3) When R 1 and R 2 is an acyl group of eight carbons; R 3 For propyl group, the synthetic reaction of described diamine compounds is as follows:

[0020] (4) When R 1 and R 2 is an unsaturated acyl group of eighteen carbons; R 3 For propyl group, the synthetic reaction of described diamine compounds is as follows:

[0021]

[0022] Then, the component is P 2 o 5 24.65%, MgO 3.52%, SiO 2 21.77% of the collophosite raw ore is ground to -0,074mm, accounting for 75%, the concentration of the flotation pulp is 30%, stirred for 1 minute, and after double reverse flotation, the first stage is reverse ...

Embodiment 2

[0024] Embodiment 2: certain bauxite ore sample, raw ore Al 2 o 3 65.98%, SiO 2 12.55%, the aluminum-silicon ratio is 5.26, the ore is ground to -0,074mm, accounting for 80%, the concentration of the flotation pulp is 30%, and the pH of the slurry is 10 with sodium carbonate; one roughing and one beneficiation process is adopted, and the added chemicals and For dosage, see figure 2 . Finally, Al can be obtained 2 o 3 72.12%, SiO 2 6.51%, the aluminum-silicon ratio of the concentrate reaches 11.08, Al 2 o 3 The recovery rate is 84.11%.

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Abstract

The invention discloses a flotation collector for silicate minerals. The flotation collector is characterized in that R1 and R2 in the formula represent hydroxyls with 8 to 18 carbon atoms; and R3 represents sub-hydroxyl with 2 to 6 carbon atoms. The flotation collector is high in collection capacity and selectivity on the silicate minerals; and foams generated in flotation are brittle, so that the foams are easily removed.

Description

technical field [0001] The invention relates to a mineral flotation collector, in particular to a silicate mineral flotation collector. Background technique [0002] There are many types of collectors used in mineral flotation. Among them, anionic collector is a kind of commonly used collector. Anion collectors include fatty acids, fatty acid derivatives, modified fatty acids, and the like. In the collophosite flotation process, the anion collector has a good separation effect on the carbonate in the collophanite, but the anion collector generally has no obvious flotation effect on the silicate in the collophanite, so , when the silicate content in collophosite is high, the traditional anion collector can no longer meet the production requirements, and it cannot effectively reduce the silicate content in the concentrate, resulting in the Al 2 o 3 , Fe 2 o 3 , SiO 2 The high content is not conducive to the subsequent preparation of phosphoric acid. In the bauxite flot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/01
Inventor 姜小明丁宁宋磊张文倩
Owner GUIZHOU UNIV
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