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

8 Cites 15 Cited by

AI-Extracted 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...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

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.

Application Domain

Flotation

Technology Topic

LignosulfonatesMaceral +8

Image

Examples

Experimental program(2)
Comparison scheme(4)

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 raw ore, and then the slurry is adjusted; a preselected slurry is obtained, and the mass concentration of the raw ore in the preselected slurry is 33%. Then adjust the pH value of the pre-selected slurry to 9, then add the lead-zinc oxide flotation inhibitor; stir well and then add the collector; the zinc oxide coarse concentrate can be obtained. The experimental results are shown in Table 1.

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 preselected slurry is obtained, and the mass concentration of the raw ore in the preselected slurry is 33%. Then adjust the pH value of the pre-selected slurry to 8-11, add the lead-zinc oxide flotation inhibitor; stir evenly and then add the collector; the zinc oxide coarse concentrate can be obtained. The experimental results are shown in Table 2.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

Login to view more

PUM

Description & Claims & Application Information

We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

Login to view more

Classification and recommendation of technical efficacy words

Improve grade and recovery
High enrichment ratio

Lead-zinc oxide ore flotation inhibitor and application thereof

AI-Extracted Technical Summary

Problems solved by technology

Abstract

Image

Examples

Example Embodiment

Example Embodiment

PUM

Description & Claims & Application Information

Similar technology patents

Normal-temperature flotation method for high-calcium low-grade scheelite

Application of cationic etherified starch in scheelite flotation

Method and system for processing red mud

Composite collecting agent and application thereof in chalcopyrite flotation

Calcium carbonate inhibitor for fluorite beneficiation and preparation method thereof

Classification and recommendation of technical efficacy words

Method for extracting metal copper from electronical wastes

Multilevel adverse current contact iron ore reverse flotation process and equipment

Beneficiation method for seashore sea beach placer

Dry purification process for low grade bentonite

Magnetic separation device for dry magnetic separator

Technology for flotation of lead and zinc sulfide ores through inflatable floatation columns

Method for collecting noble metal from polymetallic alloy material

Method for separating rare multi-metal concentrate and quartz feldspar concentrate

Method for producing high-quality extract by rapidly fermenting ginkgo leaf powder