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Preparation method of barite mineral collecting agent

A collector and barite technology, applied in the direction of solid separation, flotation, etc., to achieve the effect of less reagent consumption, good concentrate grade and good recovery rate

Inactive Publication Date: 2017-03-15
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The beneficiation and recovery of barite minerals generally adopt gravity separation methods, such as shaking table, spiral chute and other gravity separation equipment for recovery, but when the gangue minerals in barite minerals are mainly quartz and calcium carbonate minerals, gravity separation methods are used to recover heavy Spar is not ideal, the reason is that the specific gravity of quartz minerals is closer to that of barite. At this time, if the flotation method can be used to recover barite, not only the inhibitor with good selectivity to silicon-calcium minerals is needed, but also the specific gravity of barite is required. Barite mineral selective good collector

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] An example of the preparation method of barite mineral collector of the present invention, comprises the following steps:

[0017] Two or three of peanuts, rapeseed, pine coriander and pine bark are used as raw materials, dried, crushed, passed through a 80-mesh sieve, and taken according to the mass ratio: powder: diethylamine: water = 1:1:3 , heated to 150°C, fed with nitrogen and stirred for 3.5 hours, cooled to below 55°C, filtered, and the filtrate was centrifuged with a centrifugal sedimentation machine, and the supernatant was subjected to vacuum distillation to obtain a dark yellow concentrated solution, which was placed in a 75°C water bath Heat in medium temperature, evaporate the solvent to dryness, and dry the obtained viscous liquid in a vacuum drying oven at a temperature of 50°C to obtain a yellow-brown viscous solid. After complete drying, a yellow powder is obtained, which is the collector of barite minerals.

Embodiment 2

[0019] Another example of the preparation method of the barite mineral collector of the present invention comprises the following steps:

[0020] Two or three of peanuts, rapeseed, pine coriander and pine bark are used as raw materials, dried, crushed, passed through a 80-mesh sieve, and taken according to the mass ratio: powder: diethylamine: water = 3:4:10 , heated to 160°C, fed with nitrogen and stirred for 4 hours, cooled to below 55°C, filtered, and the filtrate was centrifuged with a centrifugal sedimentation machine, and the supernatant was subjected to vacuum distillation to obtain a dark yellow concentrated solution, which was placed in a water bath at 80°C Heating, evaporating the solvent to dryness, and drying the obtained viscous liquid in a vacuum drying oven at a temperature of 50°C to obtain a yellowish-brown viscous solid, and after complete drying, a yellow powder is obtained, which is the collector of barite minerals.

Embodiment 3

[0022] This embodiment is an application example of the barite mineral collector in barite mineral flotation.

[0023] 1. Mineral raw materials:

[0024] The content of barite in the raw ore is 45.67%, silicon 7.23%, and calcium carbonate 5.61%. Silicon mainly exists in the form of silica and a small amount of aluminum-silicon minerals, and calcium carbonate mainly exists in the form of calcite and a small amount of limestone.

[0025] 2. Chemical system and operating conditions: use sodium carbonate to adjust the pH of the pulp to 10.5-11, conduct tests according to water glass 2500g / t, collector dosage 800g / t, No. 2 oil 60g / t dosage, the results show that the above process is adopted And chemical conditions can effectively recover barite minerals by flotation. Under the condition that the barite content of the ore is 45.67%, after one roughing, two sweeping and three selections, the barite grade of the flotation concentrate reaches 95.21% %, the recovery rate reached 81.07%...

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Abstract

Provided is a preparation method of a barite mineral collecting agent. The preparation method comprises the following steps that two or three of peanuts, rape seeds, pine seeds and pine bark are adopted as raw materials; the raw materials are dried, smashed and screened with an 80-mesh sieve; the mixture with the mass ratio of powder to diethylamine to water being (2-3):(2-4):(6-10) is fetched and heated to be 150-160 DEG C, nitrogen gas is introduced, stirring is carried out, a reaction is performed for 3.5-4 hours, the mixture is cooled to be below 55 DEG C and filtered, filtrate is obtained and subjected to centrifugal separation with a centrifugal precipitation machine, and supernatant liquid is subjected to reduced pressure distillation so that deep yellow concentrated liquid can be obtained; and the concentrated liquid is heated in a water bath of 75-80 DEG C to make solvent to evaporate, obtained thick liquid is dried in a vacuum drying box with the temperature being 50 DEG C, then yellowish-brown thick solid is obtained, and yellow powder obtained by completely drying the thick solid is just the barite mineral collecting agent. By the adoption of the collecting agent, barite minerals can be effectively collected, the dosage of agents is small, and toxicity and pollution are both avoided.

Description

[0001] 1. Technical field [0002] The invention relates to a preparation method of a barite mineral collector, which is suitable for barite ore containing more silicon-calcium gangue. [0003] 2. Background technology [0004] The beneficiation and recovery of barite minerals generally adopt gravity separation methods, such as shaking table, spiral chute and other gravity separation equipment for recovery, but when the gangue minerals in barite minerals are mainly quartz and calcium carbonate minerals, gravity separation methods are used to recover heavy Spar is not ideal, the reason is that the specific gravity of quartz minerals is closer to that of barite. At this time, if the flotation method can be used to recover barite, not only the inhibitor with good selectivity to silicon-calcium minerals is needed, but also the specific gravity of barite is required. A collector with good selectivity for barite minerals. [0005] 3. Contents of the invention [0006] The purpose o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/018B03D103/02B03D101/02
CPCB03D1/018B03D2201/02B03D2203/02
Inventor 魏宗武穆枭阮孝辉甘恒
Owner GUANGXI UNIV
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