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Preparation method of micro-fine particle cassiterite mineral inhibitor and application of preparation method

A technology of inhibitors and fine particles, which is applied in the direction of solid separation and flotation, can solve the problems of increasing the economic loss of enterprises, reducing the grade of cassiterite minerals, and the waste of cassiterite resources, so as to achieve less dosage of chemicals and reduce cassiterite content, good inhibitory effect

Inactive Publication Date: 2014-04-09
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the recovery process of cassiterite polymetallic sulfide ore, the sulfur and oxygen minerals are generally separated and then the target minerals are separated by different processes; Fine-grained cassiterite is easy to enter the sulfide ore flotation foam during the separation of sulfur and oxygen minerals, which not only reduces the grade of cassiterite minerals, but also causes waste of cassiterite resources, which virtually increases unnecessary economic losses for enterprises

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] An example of the preparation method of fine particle cassiterite mineral inhibitor of the present invention, comprises the following steps:

[0014] Use pine leaves and pomegranate peels as raw materials, wash, dry at low temperature, pulverize, and pass through a 80-mesh sieve to obtain a mixed powder. Take according to the mass ratio: mixed powder: sodium sulfide: sodium hydroxide: water = 5:3:2:8, heat to 65°C, keep stirring for 8 hours, filter twice with gauze, and take the filtrate twice with a centrifugal sedimentation machine After centrifugation, the supernatant was collected in a round-bottomed flask and distilled under reduced pressure to obtain a dark yellow concentrated solution, which was heated in a water bath at a temperature of 50°C, and the solvent was evaporated to dryness. Dry in a drying oven to obtain a yellow-brown viscous solid. After complete drying, a yellow powder is obtained, which is the fine-grained cassiterite mineral inhibitor.

Embodiment 2

[0016] Another example of the preparation method of the fine-grained cassiterite mineral inhibitor of the present invention comprises the following steps:

[0017] Eucalyptus bark, pomegranate peel and naphthalene bark are used as raw materials, washed, dried at low temperature, crushed, and sieved to obtain a mixed powder. Take according to the mass ratio: mixed powder: sodium sulfide: sodium hydroxide: water = 8:5:7:20, heat to 75 ° C, keep stirring for 10 hours, filter with gauze for 3 times, and take the filtrate for 3 times with a centrifugal sedimentation machine After centrifugal separation, the supernatant was collected in a round-bottomed flask and distilled under reduced pressure to obtain a dark yellow concentrated solution, which was heated in a water bath at a temperature of 70°C, and the solvent was evaporated to dryness. Dry in a drying oven to obtain a yellow-brown viscous solid. After complete drying, a yellow powder is obtained, which is the fine-grained cass...

Embodiment 3

[0019] This embodiment is an application example of the fine-grained cassiterite mineral inhibitor in the mixed flotation of cassiterite polymetallic sulfide ore.

[0020] 1. Mineral raw materials:

[0021] The raw ore contains 0.35% lead, 0.23% antimony, 1.05% zinc and 0.37% tin. Phase analysis shows that zinc mainly exists in the form of sphalerite or sphalerite, lead and antimony mainly exist in the form of brittle styroite, with a small amount of galena and styroite, and tin mainly exists in the form of cassiterite.

[0022] 2. Chemical system and operating conditions: Use sodium carbonate to adjust the pH of the pulp to 7.5-8.5, according to the dosage of inhibitor 200g / t, copper sulfate 250g / t, butyl xanthate 350g / t, and No. 2 oil 120g / t. The results show that the mixed flotation of lead-antimony-zinc sulfide ore can be effectively recovered by adopting the above process and reagent conditions, and the content of cassiterite in the mixed flotation foam of sulfide ore ca...

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Abstract

The invention discloses a preparation method of micro-fine particle cassiterite mineral inhibitor and an application of the preparation method. The preparation method includes steps of utilizing pericarps, leaves or barks as raw materials, drying by low temperature after cleaning, smashing and screening to obtain powder by an 80-mesh screen; taking mixed powder, sodium sulphide, sodium hydroxide and water according to the mass ratio 5-8:3-5:2-7:8-20, heating to 65-75 DEG C, stirring and reacting for 8-10 hours, filtering twice to three times, subjecting filtrate to centrifugally separating twice to three times, collecting supernatant liquid into a round-bottom flask to be decompressed and distilled, obtaining deep yellow concentrated solution, heating in a water bath, drying solvent at the temperature of 50-70 DEG C to obtain sticky liquid, and after drying in vacuum at the temperature 75 DEG C, obtaining yellow powder, namely micro-fine particle cassiterite mineral inhibitor. The inhibitor can suppress micro-fine particle cassiterite, and cassiterite content in floatation froth of sulphide ores can be reduced.

Description

1. Technical field [0001] The invention relates to a preparation method and application of a fine-grained cassiterite mineral inhibitor, especially for cassiterite polymetallic sulfide ore, when flotation sulfide ore, cassiterite minerals often enter flotation with the sulfide ore because the particle size of the cassiterite mineral is too fine Foam, resulting in too high tin content in sulfide ore flotation foam, it is necessary to reduce the inhibitor of cassiterite grade in sulfide ore flotation foam. 2. Background technology [0002] In the recovery process of cassiterite polymetallic sulfide ore, the sulfur and oxygen minerals are generally separated and then the target minerals are separated by different processes; Fine-grained cassiterite is easy to enter the sulfide ore flotation foam during the separation of sulfur and oxygen minerals, which not only reduces the grade of cassiterite minerals, but also causes waste of cassiterite resources and virtually increases unn...

Claims

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Application Information

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IPC IPC(8): B03D1/00B03D1/018B03D101/06
Inventor 魏宗武
Owner GUANGXI UNIV
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