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Zinc oxide ore pulp foam separation beneficiation process

A technology of zinc oxide ore and zinc oxide, applied in the direction of foam dispersion/prevention, flotation, solid separation, etc., can solve problems such as poor fluidity, difficult to control foam, and difficult to eliminate concentrate foam, so as to avoid unnecessary treatment and reduce Reduction of recovery rate and effects of impact reduction

Active Publication Date: 2017-05-31
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to aim at the large amount of foam, poor fluidity, difficult control of foam in the sorting process of existing zinc oxide ore, the foam is difficult to burst in the sorting process and cannot produce secondary enrichment, and the concentrate foam is difficult to eliminate, so that This kind of foam is directly scraped off by the scraper in the beneficiation process without substantial sorting and other problems, providing a zinc oxide ore slurry foam sorting and beneficiation process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: present embodiment takes Baoshan zinc oxide ore as implementation object, and it specifically comprises the following steps:

[0028] 1) Crush and grind the raw ore sample until the monomers are dissociated, add the flotation machine and adjust the pulp concentration to 30%, add the regulator sodium carbonate 1 kg / t, the dispersant sodium hexametaphosphate 1 kg / t, Activator Na 2 S10 kg / t, collector octadecylamine 300 g / t, put the zinc oxide rough concentrate obtained by roughing into the concentrate tank, and carry out conventional sweeping operations on the roughing tailings;

[0029] 2) Layer the zinc oxide coarse concentrate and separate it into foam layer coarse concentrate I and pulp layer coarse concentrate I;

[0030] 3) Slurry the foam layer coarse concentrate Ⅰ and the pulp layer coarse concentrate Ⅰ separately, the foam layer coarse concentrate Ⅰ is pumped to the stirring tank, and after strong stirring (3000r / min), add the defoamer tributyl pho...

Embodiment 2

[0037] Embodiment 2: present embodiment takes Guilin zinc oxide ore as implementation object, and it specifically comprises the following steps:

[0038] 1) Crush and grind the raw ore sample until the monomers are dissociated, add the flotation machine and adjust the pulp concentration to 40%, add the regulator sodium carbonate 1 kg / t, the dispersant sodium hexametaphosphate 1 kg / t, Activator Na 2 S 6 kg / t, collector dodecylamine 250 g / t, the zinc oxide coarse concentrate obtained by roughing is placed in the concentrate tank, and the roughing tailings are subjected to conventional sweeping operations;

[0039] 2) Layer the zinc oxide coarse concentrate and separate it into foam layer coarse concentrate I and pulp layer coarse concentrate I;

[0040] 3) Slurry the foam layer coarse concentrate Ⅰ and the pulp layer coarse concentrate Ⅰ separately, the foam layer coarse concentrate Ⅰ is pumped to the stirring tank, and after strong stirring (2500r / min), add defoamer XP-1 Defoam...

Embodiment 3

[0050] Embodiment 3: The present embodiment takes a certain zinc oxide mine in Yunnan as the implementation object, and it specifically includes the following steps:

[0051] 1) Crush and grind the raw ore sample until the monomers are dissociated, add the flotation machine and adjust the pulp concentration to 40%, add the regulator sodium carbonate 1 kg / t, the dispersant water glass 1 kg / t, and the activator Na 2 S12 kg / t, collector octadecylamine 300 g / t, the rough concentrate of zinc oxide obtained by roughing is placed in the concentrate tank;

[0052] 2) Layer the zinc oxide coarse concentrate and separate it into foam layer coarse concentrate I and pulp layer coarse concentrate I;

[0053] 3) Slurry the foam layer coarse concentrate Ⅰ and the pulp layer coarse concentrate Ⅰ separately, the foam layer coarse concentrate Ⅰ is pumped to the stirring tank, and after strong stirring (2000r / min), add the defoamer alkylbenzene Sodium sulfonate 100g / t (according to the amount ...

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Abstract

The invention discloses a zinc oxide ore pulp foam separation beneficiation process. Zinc oxide roughed products are divided into two parts, namely a foam layer and an ore pulp layer, and pulp mixing and sorting are conducted; strong stirring and low concentration are adopted for treating the products on the foam layer with the assistance of an antifoaming agent and conducting the next step of selection, high concentration is adopted for selecting the products on the ore pulp layer, and the ore products in the two work processes are combined; the previous work is conducted according to the sequence, and the concentrate products are layered again; and the above steps are repeated till qualified zinc oxide concentrates are obtained. The zinc oxide ore pulp foam separation beneficiation process has the beneficial effects that zinc concentrates are high in grade and high in yield, and the influences of foam in the selection process are little.

Description

technical field [0001] The invention relates to a zinc oxide ore pulp bubble separation and beneficiation process, which belongs to the technical field of mineral processing. Background technique [0002] The flotation method is the most commonly used beneficiation method for zinc oxide ore, which mainly includes three kinds of sulfide-amine method, sulfide-xanthate method and fatty acid direct flotation method, among which the sulfide-amine method is the most commonly used. However, amine collectors are extremely sensitive to ore slime, and zinc oxide ore is often muddy seriously. The existence of ore slime has seriously affected the separation index of zinc oxide ore. Ore slime will not only absorb a large amount of amine collectors, but also The amount of chemicals used and the large amount of amine collectors can easily lead to the consequences that the flotation foam is difficult to eliminate. Therefore, the key to amine flotation is how to solve the slime problem. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/08B01D19/04B03D103/02
CPCB01D19/04B03D1/085B03D2203/02
Inventor 冉金城刘全军邱显扬袁华玮张辉张一超
Owner KUNMING UNIV OF SCI & TECH
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