A kind of low alkali consumption scheelite collector and its application

A collector and scheelite technology, applied in solid separation, flotation, etc., can solve problems such as unstable sorting index, reduced sodium carbonate consumption, and large dust in configuration, so as to achieve good beneficiation effect and reduce pipeline blockage , the effect of reducing the amount of preparation

Active Publication Date: 2018-06-22
ZHENGZHOU MINERALS COMPOSITIVE UTILIZATION RES INST CHINESE GEOLOGICAL ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The current problem is that sodium carbonate is a powder, and it is difficult to add it directly. The dust in the configuration is too large, and the solubility of sodium carbonate is related to temperature. When the ambient temperature is high, the solubility is high, and the concentration can be configured at 10-25 %, the concentrator generally configures a concentration of 20%. When the ambient temperature is low, even if the concentration is reduced to about 10% by using hot water, the slurry flows into the slurry through the pipeline. Due to the decrease in the ambient temperature, sodium carbonate crystals are precipitated, resulting in blockage of the pipeline. The amount of sodium carbonate is reduced, the commonly used collectors for scheelite are affected by calcium and magnesium ions, and the selection index is extremely unstable

Method used

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  • A kind of low alkali consumption scheelite collector and its application
  • A kind of low alkali consumption scheelite collector and its application
  • A kind of low alkali consumption scheelite collector and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Follow the steps below to prepare scheelite collector

[0049] 1) Heat the industrial oil by-product to 50°C and stir for 25 minutes, then add sulfuric acid with a dilution concentration of 25%, and the dosage is 15% of the mass of the oil by-product;

[0050] 2) Continue to stir and react for 45-60min, let stand, and remove the impurities in the lower layer after layering;

[0051] 3) Pass into the reaction system 10% chlorine gas of industrial oil by-product quality and continue to stir and react for 80min, add lye solution to neutralize the reaction system;

[0052] 4) Add surfactant sodium dodecylsulfonate and sodium lauryl sulfate of 3% of the total mass of the system, stir evenly, add 10% of 30% sodium hydroxide again, and stir;

[0053] 5) Dilute the reaction system with water to a mass fraction of 10% to obtain a collector.

[0054] Wherein, the industrial oil by-product is an industrial by-product of edible oil processing and extraction, and its main componen...

Embodiment 2

[0056] Follow the steps below to prepare scheelite collector

[0057] 1) Heat the industrial oil by-product to 70°C and stir for 35 minutes, then add sulfuric acid with a dilution concentration of 35%, and the dosage is 15%;

[0058] 2) Continue to stir and react for 60 minutes, let stand, and remove the impurities in the lower layer after layering;

[0059] 3) Pass 15% chlorine gas of industrial oil by-product quality into the reaction system and continue to stir and react for 60 minutes, and add lye solution to neutralize the reaction system;

[0060] 4) Add surfactants alkylphenol ethoxylates and nonylphenol ethoxylates of 5% of the total mass of the system, stir evenly, add 15% of 30% sodium hydroxide again, and stir;

[0061] 5) Adding water to dilute the reaction system to a mass fraction of 1% to obtain a collector.

[0062] Wherein, the industrial oil by-product is an industrial by-product of edible oil processing and extraction, and its main components include oil h...

Embodiment 3

[0064] Follow the steps below to prepare scheelite collector

[0065] 1) Heat the industrial oil by-products to 60°C and stir for 30 minutes, then add sulfuric acid with a dilution concentration of 30%, and the dosage is 12%;

[0066] 2) Continue to stir and react for 50 minutes, let stand, and remove the impurities in the lower layer after layering;

[0067] 3) Pass into the reaction system 13% chlorine gas of industrial oil by-product quality and continue to stir and react for 70min, add lye solution to neutralize the reaction system;

[0068] 4) Add the surfactant alkylphenol polyoxyethylene ether of 4% of the total mass of the system, stir evenly, add 14% of 25% sodium hydroxide again, and stir;

[0069] 5) Adding water to dilute the reaction system to a mass fraction of 5% to obtain a collector.

[0070] Wherein, the industrial oil by-product is an industrial by-product of edible oil processing and extraction, and its main components include oil horn, saponin, polyacid,...

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PUM

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Abstract

The invention provides a scheelite collecting agent. The scheelite collecting agent is characterized by being produced mainly through the steps of 1, heating and stirring by-products of commercial grease and then adding sulfuric acid with the mass being 10-15% of the mass of the by-products of the commercial grease, wherein the concentration of the sulfuric acid is 25-35%; 2, keeping stirring and removing impurities in a lower layer after standing and layering; 3, guiding chlorine gas into a reaction system, continuously stirring and adding inorganic strong-alkali solutions to neutralize the reaction system; 4, adding surface activation agents with the mass being 3-5% of the total mass of the system into the system, adding inorganic strong-alkali solutions with the mass being 10-15% of the mass of the by-products of the commercial grease into the system after uniform stirring and keeping stirring; and 5, adding water for diluting reaction until the mass fraction is 1-10% to obtain the collecting agent. The by-products of the commercial grease are industrial by-products formed by processing and extracting edible fat and oil and mainly comprise oil, saponin, polyacid, deodorized distillates and sebacic acid. The invention further provides a method for scheelite beneficiation through the scheelite collecting agent.

Description

technical field [0001] The invention relates to the field of mineral processing, in particular to a low alkali consumption scheelite collector and its application. Background technique [0002] As a non-renewable resource, tungsten has a wide range of uses in industrial production. However, after long-term mining, wolframite resources are becoming increasingly exhausted, and scheelite has gradually replaced wolframite as the main tungsten mining mineral. At present, the separation of scheelite mainly adopts the flotation process. The most typical process uses sodium carbonate (or sodium hydroxide + sodium carbonate) as the regulator, sodium silicate as the inhibitor, and fatty acid as the collector. Rough separation and two sweeping processes are used to float scheelite crude concentrate, and then use Petroff method to heat and concentrate to obtain salable scheelite concentrate. Most domestic scheelite processing plants adopt this type of process. However, most fatty acid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/018B03D101/02B03D103/02B03D101/06
CPCB03D1/018B03D2201/007B03D2201/02B03D2201/06B03D2203/02
Inventor 邵伟华彭团儿赵平常学勇刘广学张艳娇王力方浩
Owner ZHENGZHOU MINERALS COMPOSITIVE UTILIZATION RES INST CHINESE GEOLOGICAL ACAD
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