Lead-zinc oxide ore flotation inhibitor and application thereof

A lead-zinc oxide and inhibitor technology is applied in the flotation inhibitor of low-grade lead-zinc oxide minerals, and the flotation inhibitor of lead-zinc oxide minerals can solve the problems of poor separation selectivity and achieve high enrichment ratio, process Stable and reliable operation, the effect of improving grade and recovery rate

Active Publication Date: 2016-06-22
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problem of poor separation selectivity between low-grade lead-zinc oxide ore and gangue, the present invention provides an organic inhibitor with dual attributes of dispersion and inhibition, high selecti

Method used

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  • Lead-zinc oxide ore flotation inhibitor and application thereof
  • Lead-zinc oxide ore flotation inhibitor and application thereof
  • Lead-zinc oxide ore flotation inhibitor and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0036] Example 1

[0037] The lead-zinc oxide flotation inhibitor used in this embodiment consists of the following components in parts by mass:

[0038] 50 parts of calcium lignosulfonate,

[0039] 30 parts of sodium pyrophosphate,

[0040] 20 parts of soluble starch.

[0041] This example uses a low-grade lead-zinc oxide ore sample, which contains 1.54% Pb, 7.50% Zn, and SiO 2 20.03%, CaO29.75%, TFe6.05%. See the pharmaceutical system test process figure 1 , Under the premise that other pharmacy systems remain unchanged, the test results comparing water glass as inhibitor and CSS-3 as inhibitor are shown in Table 1.

[0042] In this embodiment, the collector is a mixed collector of xanthate, fatty acid and ether amine. Add the collector at the ratio of 800g collector per ton of raw ore.

[0043] The specific operations are as follows:

[0044] The raw ore is ground to a particle size less than or equal to 0.074 mm and the particles account for more than 88% of the total mass of the ra...

Example Embodiment

[0051] Example 2

[0052] The lead-zinc oxide flotation inhibitor used in this embodiment consists of the following components in parts by mass:

[0053] 50 parts of calcium lignosulfonate,

[0054] 30 parts of sodium pyrophosphate,

[0055] 20 parts of soluble starch.

[0056] In this example, a sample of a lead-zinc oxide ore in southwestern China, with a raw ore grade of Zn5.52%, is shown in the reagent system test process figure 1 Under the condition of not desliming, and other medicament systems unchanged, the test results of comparing sodium silicate as inhibitor and CSS-3 as inhibitor are shown in Table 2.

[0057] In this embodiment, the collector is a mixed collector of xanthate, fatty acid and ether amine. Add 750g of collector per ton of raw ore.

[0058] The specific operations are as follows:

[0059] The raw ore is pulverized to a particle size less than or equal to 0.074 mm and the particles account for more than 85% of the total mass of the raw ore and then slurried; a pr...

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Abstract

The invention relates to a lead-zinc oxide ore flotation inhibitor and application thereof, and belongs to the technical field of mineral processing. The designed inhibitor comprises the following components in parts by mass: 30-80 parts of lignosulfonate, 10-40 parts of assistant A, and 10-30 parts of soluble starch. The application scheme comprises the following steps: a raw ore is finely grinded to particles with a particle size not larger than 0.074 mm; after the particles are more than 85% of total mass of the raw ore, the size mixing is performed to obtain preselected slurry; after the pH value of the preselected slurry is adjusted to 8-11, the lead-zinc oxide ore flotation inhibitor is added for uniformly stirring; and then, a capturing agent is added to obtain a rough concentration of zinc oxide. The inhibitor is reasonable in component design, has dual attributes of dispersion and inhibition, has such advantages as high selectivity, high inhibition capacity, no poison and pollution and convenience for operation and management, and is convenient for large-scale industrial application.

Description

technical field [0001] The invention relates to a flotation inhibitor of lead-zinc oxide ore and its application; in particular, it relates to a flotation inhibitor of low-grade lead-zinc oxide mineral containing quartz and calcite and its application; it belongs to the technical field of mineral processing. Background technique [0002] my country has rich reserves of lead and zinc resources, ranking second in the world after Australia. However, at present, only high-grade oxide ores and a small amount of sulfide ores are used in my country's lead-zinc mines, and a large number of low-grade lead-zinc oxide ores cannot be utilized. Taking the largest lead-zinc deposit in my country, the Lanping lead-zinc oxide deposit in Yunnan as an example, at present, lead-zinc sulfide ore and a small amount of lead-zinc oxide ore with a zinc grade higher than 15% are mainly used. It is stored near the mine, and has not been effectively developed due to the difficulty of flotation, result...

Claims

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Application Information

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IPC IPC(8): B03D1/016B03D101/06
CPCB03D1/016B03D2201/06
Inventor 石晴刘诚张国范冯其明卢毅屏欧乐明
Owner CENT SOUTH UNIV
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