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Mixed collector of cassiterite and preparation method and application thereof

A technology of mixing collectors and collectors, applied in the field of mineral processing chemicals, can solve the problem of high cost, and achieve the effects of improving grade and recovery rate, reducing consumption, and reducing the cost of chemicals

Inactive Publication Date: 2019-07-05
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, cassiterite collectors are mainly divided into fatty acids and hydroxamic acids. Fatty acid collectors are mainly used for the flotation of tin ores with relatively simple mineral composition and quartz as the main gangue, and need to be adjusted appropriately Hydroxamic acid collectors have good selectivity and strong collection ability, but the cost is high

Method used

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  • Mixed collector of cassiterite and preparation method and application thereof
  • Mixed collector of cassiterite and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Embodiment 1: The mixed collector of cassiterite in this embodiment is obtained from the following components by mass: 15 g of salicylic hydroxamic acid, 50 g of benzyl hydroxamic acid, 35 g of styrene phosphonic acid, 15 g of salicylic hydroxamic acid, 50 g Benzyl hydroxamic acid and 35g of styrene phosphonic acid are mixed uniformly to obtain the mixed collector of cassiterite.

[0025] The mixed collector of cassiterite prepared in this embodiment is used in a certain low-grade cassiterite tailings in Wenshan, Yunnan, the tin grade in the tailings is 0.17%, and tin is reclaimed from the tailings, such as figure 1 As shown, the specific steps are as follows:

[0026] (1) Firstly, the low-grade tin tailings are pre-classified to obtain two products of +74μm and -74μm, and the +74μm product is regrinded until the particle size of -74μm accounts for 60% by mass, and then the regrind The product is mixed with the -74 μm product obtained by pre-screening to obtain a mixed...

Embodiment 2

[0030] Embodiment 2: The mixed collector of cassiterite in this embodiment is obtained from the following components by mass: 30 g of salicylic hydroxamic acid, 40 g of benzohydroxamic acid, 30 g of styrene phosphonic acid, 30 g of salicylic hydroxamic acid, 40 g Benzylhydroxamic acid and 30g of styrene phosphonic acid are mixed uniformly to obtain the mixed collector of cassiterite.

[0031] The mixed collector of cassiterite prepared in this embodiment is used in a certain low-grade cassiterite tailings in Mengzi, Yunnan, containing 0.22% tin, and tin is reclaimed from the tailings, such as figure 1 As shown, the specific steps are as follows:

[0032] (1) Firstly, pre-classify the low-grade tin tailings to obtain two products of +74μm and -74μm, regrind the product of +74μm, and then grind until the particle size of -74μm accounts for 70% by mass, and then regrind The product is mixed with the -74 μm product obtained by pre-screening to obtain a mixed product;

[0033] (2...

Embodiment 3

[0036] Embodiment 3: The mixed collector of cassiterite in this embodiment is obtained from the following components by mass: 35g of salicylic hydroxamic acid, 50g of benzohydroxamic acid, 15g of styrene phosphonic acid, 35g of salicylic hydroxamic acid, 50g Benzylhydroxamic acid and 15g of styrene phosphonic acid are mixed uniformly to obtain the mixed collector of cassiterite.

[0037] The mixed collector of cassiterite prepared in this embodiment is used in a certain low-grade cassiterite tailings in Gejiu, Yunnan, containing 0.35% tin, and reclaims tin from the tailings, such as figure 1 As shown, the specific steps are as follows:

[0038] (1) Firstly, pre-classify the low-grade tin tailings to obtain two products of +74μm and -74μm, then regrind the +74μm product until the particle size of -74μm accounts for 80% by mass, and then regrind The product is mixed with the -74 μm product obtained by pre-screening to obtain a mixed product;

[0039] (2) Add water to the mixed...

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Abstract

The invention discloses a mixed collector of cassiterite and a preparation method and application thereof. The mixed collector of the cassiterite is formed by mixing salicylhydroxamic acid, benzohydroxamic acid and styrene phosphonic acid. By means of the mixed collector, the agent cost is reduced, the viscosity of bubbles in the floatation process is reduced, the floatation indexes of tin are increased, low-grade tin tailings are classified in advance, coarse fraction products are fully disaggregated, recovery of the tin is facilitated, the classified products are deslimed, the influences offine silt on following tin floatation are reduced, the consumption of the fine silt on agents is reduced, and the tin grade and the tin recovery rate are increased while the production cost is reduced.

Description

technical field [0001] The invention relates to a mixed collector of cassiterite and its preparation method and application, belonging to the technical field of ore dressing agents. Background technique [0002] With the mining and utilization of mineral resources, rich ore resources are getting less and less, and the stockpiles of tailings are getting bigger and bigger. The comprehensive utilization of valuable metals in tailings has attracted increasing attention. [0003] As a non-renewable resource, tin ore resources are abundant in my country, ranking first in the world in total. Cassiterite is a kind of mineral with high density and brittle quality. Due to the intercalation relationship, it is difficult to dissociate, so it needs to be finely ground. In the process of fine grinding, it is very easy to over-grind, resulting in a large amount of fine mud. The existence of fine mud directly affects the grade and recovery rate of cassiterite flotation. According to lit...

Claims

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Application Information

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IPC IPC(8): B03D1/001B03D1/02B03B7/00B03D101/02B03D103/02
CPCB03D1/001B03D1/025B03B7/00B03D2201/02B03D2203/02
Inventor 童雄华中宝谢贤何庆浪吕晋芳莫峰封东霞
Owner KUNMING UNIV OF SCI & TECH
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