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Method for recycling micro-fine particle class cassiterite

A technology of micro-fine particles and cassiterite, applied in solid separation, flotation, etc., can solve the problems of not reporting the actual composition of JSY-19, failing to achieve high-efficiency utilization of fine-grained cassiterite, and practical limitations in industrial applications, and achieve savings Reagent cost, avoidance of tin recovery, avoidance of significant drop in effect

Active Publication Date: 2017-03-15
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the actual composition of JSY-19 is not reported, and the practicability of industrial applications is greatly limited
[0008] For fine-grained cassiterite, pre-re-selection will result in the loss of part of the muddy cassiterite, resulting in a low recovery rate of tin concentrate
Although a simple collector combination can partially improve the grade and recovery rate of cassiterite, it still has not achieved the efficient utilization of fine-grained cassiterite, and most of the cassiterite flotation collectors are toxic, and the impact on the environment is still a collector. Therefore, the adoption of new agents and processes has important practical significance for the efficient recovery and utilization of fine-grained cassiterite

Method used

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  • Method for recycling micro-fine particle class cassiterite
  • Method for recycling micro-fine particle class cassiterite
  • Method for recycling micro-fine particle class cassiterite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The tin ore contains 0.39% tin, and the -37μm particle size distribution rate is 71%.

[0032] (1) Mix hydroxylamine hydrochloride, methyl benzoate, sodium hydroxide, and water in a mass ratio of 6:11:3:80, heat to 45°C, stir for 1.5 hours, and cool to room temperature to become drug K.

[0033] (2) Mix agent K, dodecyl sulfosuccinic acid, and styrene phosphonic acid in a mass ratio of 78:9:13, vibrate and stir with an ultrasonic instrument for 50 minutes, and make a combined collector KMC.

[0034](3) Add combined collector KMC 2400g / t to the tin ore slurry with a mass percentage concentration of 25%-30%, add 40g / t of auxiliary collector with commercial code P86, stir for 6min-7min, add pine Alcohol oil 40g-50g / t, after stirring for 3.5min-4.5min, use a flotation machine for roughing for 8min-10min, the rough concentrate ore will be refined for three times to obtain tin coarse concentrate, and the selected tailings will return to the previous Classification: roughing ...

Embodiment 2

[0038] The tin ore contains 0.54% tin, and the -37μm particle size distribution rate is 68%.

[0039] (1) Mix hydroxylamine hydrochloride, methyl benzoate, sodium hydroxide, and water in a mass ratio of 6:11:3:80, heat to 50°C, stir for 2 hours, and cool to room temperature to become drug K.

[0040] (2) Mix agent K, dodecyl sulfosuccinic acid, and styrene phosphonic acid in a mass ratio of 78:9:13, vibrate and stir with an ultrasonic instrument for 70 minutes, and make a combined collector KMC.

[0041] (3) Add combined collector KMC 3000g / t and auxiliary collector 50g / t commercial code P86 to the tin ore slurry with a mass percentage concentration of 30%-35%, stir for 7min-8min, add pine Alcohol oil 50g-60g / t, after stirring for 3min-4min, use a flotation machine for roughing for 10min-11min, rough concentrate ore will be refined for three times to obtain tin coarse concentrate, and the selected tailings will return to the previous stage of separation Separation; the roughi...

Embodiment 3

[0045] The tin ore contains 0.66% tin grade, and the -37μm particle size distribution rate is 65%.

[0046] (1) Mix hydroxylamine hydrochloride, methyl benzoate, sodium hydroxide, and water in a mass ratio of 6:11:3:80, heat to 55°C, stir for 1.8 hours, and cool to room temperature to become drug K.

[0047] (2) Mix agent K, dodecyl sulfosuccinic acid, and styrene phosphonic acid in a mass ratio of 78:9:13, vibrate and stir with an ultrasonic instrument for 1 hour, and make a combined collector KMC.

[0048] (3) Add the combined collector KMC4500g / t to the tin ore pulp with a mass percentage concentration of 31%-34%, add 60g / t of auxiliary collector with commercial code P86, stir for 6.5min-7.5min, add Pine alcohol oil 20g-30g / t, after stirring for 4min-5min, use a flotation machine for roughing for 11min-12min, rough concentrate ore will get tin coarse concentrate after three times of beneficiation, and the beneficiated tailings will return to the previous level Separation: ...

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Abstract

The invention relates to a method for recycling micro-fine particle class cassiterite and belongs to the technical field of beneficiation. According to the method, a chemical formed through synthesis of main raw materials of hydroxylamine hydrochloride and methyl benzoate and combination of styrene phosphoric acid and the like is adopted as a collector, flotation is conducted on the micro-fine particle cassiterite under the circumstance that no inhibitor is needed, flotation rough concentrate is subjected to reselection and concentration to obtain final concentrate, and reselection tailings return to flotation to form a flotation-reselection combined process. The advantages that the flotation recycling rate is high, and the reselection concentrate grade is high are utilized effectively, so that the high recycling rate is obtained while the qualified cassiterite concentrate grade is obtained. Through the flotation-reselection combined method, the resource utilization rate of the micro-fine particle class cassiterite difficult to recycle can be increased effectively, and good economic benefit is achieved.

Description

technical field [0001] The invention belongs to the technical field of mineral processing, and in particular relates to a method for recycling fine-grained cassiterite, in particular to a method for recycling fine-grained cassiterite in tin ore slime. Background technique [0002] China's tin resource reserves rank first in the world, mainly distributed in Guangxi, Hunan, Yunnan and other places. Tin metal mainly comes from cassiterite, and the coarse-grained cassiterite is mainly recovered by gravity separation. With the continuous development of tin ore, the particle size of cassiterite in tin resources is getting finer and finer, and cassiterite is brittle, and it is easy to be crushed and muddied in the process of crushing and grinding. For fine-grained cassiterite, gravity separation is difficult to recover, and flotation is a promising method for the recovery of such cassiterite. However, fine-grained cassiterite minerals have small particle size and large specific s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B9/06B03D1/018B03D1/00B03D101/02B03D103/02
CPCB03B9/06B03D1/00B03D1/018B03D2203/02B03D2201/02
Inventor 陈瑜文书明王伊杰邓久帅丰奇成秦雪聪李尧
Owner KUNMING UNIV OF SCI & TECH
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