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Environment-friendly utilization process of volatile organic compounds in rare earth smelting

A technology of volatile organic compounds and organic compounds, applied in the field of environmental protection utilization technology, can solve problems such as human side effects, surrounding environmental pollution, environmental hazards, etc.

Active Publication Date: 2022-03-01
龙南友力稀土科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the current process of extracting rare earth from rare earth ore will inevitably pollute the surrounding environment, especially in the process of rare earth leaching and extraction, a large amount of organic volatile gases will be generated, and these gases will cause serious harm to the environment when discharged into the air even have serious side effects on the human body
At present, there is no effective treatment method. In order to solve the above problems, the present invention provides an environmentally friendly application process of volatile organic compounds in rare earth smelting, which can reduce the pollution to the environment and realize the recycling of resources at the same time

Method used

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  • Environment-friendly utilization process of volatile organic compounds in rare earth smelting

Examples

Experimental program
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Effect test

Embodiment 1

[0046] An environment-friendly utilization process of volatile organic compounds in rare earth smelting.

[0047] The preparation method of organic matter α is:

[0048] 1) Sulfonated P50725 parts, P20428 parts, N23528 parts, and 4 parts of additives are mixed at 45°C and set aside;

[0049] 2) Mix 0.05mol / L hydrochloric acid solution and ethanol solution at a volume ratio of 1:1, and set aside;

[0050] 3) Mix the mixed solution of the above step 1) and step 2) according to the volume ratio of 3:1 and mix it evenly.

[0051] Wherein, the preparation method of sulfonated P507 is:

[0052] Take 18 parts of P5071 into a reaction kettle, add 23 parts of oleum to it, raise the temperature to 130°C, pressurize at 1.2MPa, and keep the temperature for 4.5 hours to obtain the product.

[0053] The preparation method of additive is:

[0054] 1) Put 5 parts of acetylacetone and 6 parts of (3,3-diethoxypropyl) diethyl phosphate into the reactor, add ethanol solution, heat up to 128°C...

Embodiment 2

[0083] An environment-friendly utilization process of volatile organic compounds in rare earth smelting.

[0084] The preparation method of organic matter α is:

[0085] 1) Sulfonate 20 parts of P50720 parts, 30 parts of P20430 parts, 5 parts of N23525 parts, and 5 parts of additives, and make a mixed solution at 45 °C, which is the mixed solution a;

[0086] 2) Make a mixed solution of 0.05mol / L hydrochloric acid solution and ethanol solution according to the volume ratio of 1:1, which is the mixed solution b;

[0087] 3) Mix the mixed solution of the above step 1) and step 2) according to the volume ratio of 3:1 and mix it evenly.

[0088] Wherein, the preparation method of sulfonated P507 is:

[0089] Take 20 parts of P507 and put it into a reaction kettle, add 20 parts of oleum to it, raise the temperature to 130°C, press at 1.2MPa, and keep it warm for 5 hours to obtain the product.

[0090] The preparation method of additive is:

[0091] 1) Put 6 parts of acetylaceto...

Embodiment 3

[0120] An environment-friendly utilization process of volatile organic compounds in rare earth smelting.

[0121] The preparation method of organic matter α is:

[0122] 1) Sulfonate P50730 parts, P20425 parts, N23530 parts, and 3 parts of additives, and make a mixed solution at 45°C, which is mixed solution a;

[0123] 2) Make a mixed solution of 0.05mol / L hydrochloric acid solution and ethanol solution according to the volume ratio of 1:1, which is the mixed solution b;

[0124] 3) Mix the mixed solution of the above step 1) and step 2) according to the volume ratio of 3:1 and mix it evenly.

[0125] Wherein, the preparation method of sulfonated P507 is:

[0126] Take 15 parts of P5071 and put it into a reaction kettle, add 25 parts of oleum to it, raise the temperature to 130°C, press at 1.2MPa, and keep it warm for 4 hours to obtain the product.

[0127] The preparation method of additive is:

[0128] 1) Put 4 parts of acetylacetone and 7 parts of (3,3-diethoxypropyl) ...

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Abstract

The invention provides an environment-friendly utilization process of organic volatile matters in rare earth smelting. In the whole technological process of smelting the rare earth in the rare earth ore, ore dressing is conducted through a magnetic separation method, the follow-up separation difficulty is reduced, the rare earth elements can be effectively extracted from the rare earth ore through leaching liquor, and meanwhile the emulsification phenomenon in the extraction process can be reduced through effective components in the rare earth elements. The extraction agent improves the extraction rate of all rare earth elements in the solution through mixed extraction, and the complexing agent component can improve the extraction rate of the rare earth elements. And the modified gas filtering membrane is selected to filter gas, so that gas recycling is realized. According to the modified gas filtering membrane, the modified chitosan fiber and the modified aerogel are selected as raw materials, the aerogel is resistant to high temperature and acid, has low density and large porosity and can effectively filter gas, and the aerogel and the chitosan fiber both belong to degradable materials and cannot cause harm to the environment.

Description

technical field [0001] The invention relates to the field of rare earth smelting, in particular to an environment-friendly utilization process of volatile organic compounds in rare earth smelting. Background technique [0002] Rare earths have the reputation of "industrial vitamins", and now they have become extremely important strategic resources. Oxides of rare earth elements refer to the oxides of 15 kinds of elements with atomic numbers ranging from 57 to 71 in the periodic table of elements, as well as oxides of 17 elements with similar chemical properties to the elements of the group. Rare earth elements have been widely used in the fields of petroleum, chemical industry, metallurgy, textile, ceramics, glass and permanent magnet materials. In recent years, my country's new energy vehicles are about to enter the "2.0 era" dominated by intelligence, with multiple energy sources and driving modes in parallel. Not only is the demand for lithium, cobalt and nickel resource...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B59/00C22B1/02C22B3/10C22B3/06C22B3/38C22B3/40C22B7/04B01D53/22B01D71/10B01D69/10B01D69/02B01D67/00
CPCC22B59/00C22B3/10C22B1/02C22B7/04C22B7/007C22B7/001B01D53/228B01D71/10B01D69/105B01D69/02B01D67/0093B01D2257/2045B01D2257/708B01D2258/025B01D2325/30B01D2325/22B01D2325/04Y02P10/20
Inventor 程宗敏蔡理成陈勇春王智刚黄圣善廖琦徐智峰钟政
Owner 龙南友力稀土科技开发有限公司
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