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Hydroxy sulfo-group stearic acid soap collecting agent and preparing method thereof

A technology of hydroxysulfostearic acid and hydroxysulfostearin, which is applied in the field of collectors, can solve problems such as failure to meet collophosite beneficiation requirements, inability to transport beneficiation agents, increase in beneficiation production costs, etc. High beneficiation effect, good collection performance, and low beneficiation cost

Inactive Publication Date: 2018-08-24
WUHAN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the interbedded relationship between collophosite and dolomite in these collophosites is complex, requiring high grinding fineness, and the production cost of mineral processing has increased significantly. In recent years, the development of flotation agents has mainly focused on the multifunctionalization of the hydrophilic end, Currently commonly used fatty acid collectors have poor foam fluidity, resulting in low sorting efficiency, poor selectivity, poor water solubility, and easy condensation to form colloids at low temperatures, resulting in pipeline blockage and inability to transport beneficiation agents. Require

Method used

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  • Hydroxy sulfo-group stearic acid soap collecting agent and preparing method thereof
  • Hydroxy sulfo-group stearic acid soap collecting agent and preparing method thereof
  • Hydroxy sulfo-group stearic acid soap collecting agent and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Preparation of hydroxysulfostearic acid soap collector, concrete steps are as follows:

[0027] Get 40g oleic acid in the beaker, slowly add the vitriol oil of 0.8g 98% and 3.20g acetic acid (99.5wt%), add 16.04g hydrogen peroxide (30wt%), stir and be warming up to 60 ℃ of reaction 4 hours, after reaction finishes, add The reaction solution was transferred to a separatory funnel, and the aqueous solution of the lower floor was separated, and the organic phase was washed several times with water to obtain epoxy stearic acid.

[0028] Take 45g of the above-prepared epoxy stearic acid in the reactor, add 9g of sodium bisulfite and 18g of water, stir and raise the temperature at 65°C for 4 hours, separate the water phase after standing, and wash the organic phase with water several times to obtain hydroxysulfonate base stearic acid.

[0029] Weigh 50g of the above-prepared hydroxysulfostearic acid, 10g of sodium hydroxide, 39g of water and 1g of diethyl phthalate into a fl...

Embodiment 2

[0033] Preparation of hydroxysulfostearic acid soap collector, concrete steps are as follows:

[0034] Get 200g of oleic acid in a beaker, slowly add 4.0g of 98% concentrated sulfuric acid and 16g of acetic acid (99.5wt%), add 80.2g of hydrogen peroxide (30wt%), stir and heat up to 60 ° C for 4 hours, and then react Liquid is transferred in the separatory funnel, separates lower floor aqueous solution, and organic phase is washed several times with water, obtains epoxy stearic acid.

[0035] Take 230g of the above-prepared epoxy stearic acid in the reactor, add 45g of sodium bisulfite and 90g of water, stir and raise the temperature at 65°C for 4 hours, separate the water phase after standing, and wash the organic phase with water several times to obtain hydroxysulfonate base stearic acid.

[0036] Weigh 250g of the hydroxysulfostearic acid prepared above, 50g of sodium hydroxide, 195g of water and 5g of diethyl phthalate (diethyl phthalate, the mixture of diethyl terephthala...

Embodiment 3

[0038] The hydroxysulfostearate saponite collector prepared in Example 1 and Example 2 is used as the collector respectively, and the collided phosphate rock provided by Guizhou Batian Phosphorus Chemical Co., Ltd. is carried out by reverse flotation process , the chemical composition of the main elements of the glenite is shown in Table 1:

[0039] Table 1

[0040]

[0041] The specific flotation method is as follows: Grind the collophosite until the mass fraction of the grinding fineness -0.074mm reaches 85-90%, pour it into the flotation tank, add water to obtain a pulp with a mass concentration of 33.3%, and use 10% dilute sulfuric acid Adjust the pH value of the pulp to 4-5, and add phosphorus inhibitor (phosphoric acid), and then add the collector to the pulp, the addition amount is 1.56kg / t collophosite (the cost of the collector is about 9.36 yuan / t ore ), fully stirred evenly, and then the dolomite was floated out in the flotation cell by a rough and two-sweep pro...

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Abstract

The invention relates to a hydroxy sulfo-group stearic acid soap collecting agent and a preparing method thereof. The structural formula of the hydroxy sulfo-group stearic acid soap collecting agent is shown in the specification, wherein C8H17 is the straight chain C8 alkyl group. The provided collecting agent is compared with an existing collecting agent, efficient selectivity is achieved for dolomite, the ore carrying capacity is high, the reagent usage amount is 1.32-1.56 kg / t of collophanite, foam fluidity is good, the foam scraping time is about 5-8 min, the defoaming time is about 3-5 min, and good collecting performance is achieved; raw materials are easy to obtain, and the beneficiation cost is low; and solubleness is good at the normal temperature and low temperature, and the hydroxy sulfo-group stearic acid soap collecting agent and the preparing method thereof are applicable to the collophanite flotation field.

Description

technical field [0001] The invention relates to a collector, in particular to a hydroxysulfostearic acid soap collector and a preparation method thereof. Background technique [0002] Collephate is the basic raw material of phosphate fertilizer and phosphate, which plays a very important role in agricultural production and food security. my country's phosphate rock is "abundant but not rich". Currently, the grade of collophosite mined is generally 17-18%P 2 o 5 . The grade of phosphate ore directly processed to produce phosphate fertilizer and phosphate must be greater than 28%P 2 o 5 , so these mined collophanites must be enriched by flotation before they can be processed and utilized. Moreover, the interbedded relationship between collophosite and dolomite in these collophosites is complex, requiring high grinding fineness, and the production cost of mineral processing has increased significantly. In recent years, the development of flotation agents has mainly focused...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/012B03D101/02B03D103/06
CPCB03D1/012B03D2201/02B03D2203/06
Inventor 李博洋潘志权周红程清蓉张华丽
Owner WUHAN INSTITUTE OF TECHNOLOGY
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