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Method for producing negative oxygen ion powder by using monazite tailings and application of negative oxygen ion powder

A technology for producing negative oxygen ions and negative oxygen ion powder, applied in chemical instruments and methods, inorganic chemistry, rare earth metal compounds, etc., can solve the problems of monazite tailings resource waste, environmental pressure, tailings accumulation and storage, etc., and achieve excellent Far-infrared function, strong antibacterial effect

Active Publication Date: 2019-04-19
泉州市利芝新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The storage of monazite tailings is mainly through sealed stacking, such as building a tailings dam to seal the monazite tailings with concrete and then store them. Therefore, the main problem facing the smelting and extraction of monazite at present is the accumulation of a large amount of tailings. So far There is no effective recycling and reuse method for monazite tailings. Therefore, if left untreated for a long time, it will not only waste monazia tailings resources, but also cause great pressure on the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] The method for utilizing monazite tailings to produce negative oxygen ion powder comprises the following steps:

[0062] Step 1. Raw material preparation and pretreatment: Dry and crush the monazite tailings through a 200-mesh sieve. Coarse materials below 200 mesh need to be further crushed until all of them are sieved to obtain crushed materials. The temperature must be controlled within 400°C during drying. , otherwise it will have a great impact on the performance of the end product;

[0063] Step two, chemical treatment:

[0064] a. Take the broken material obtained in step 1 and add it to the reaction container, add dilute hydrochloric acid with a mass concentration of 15% for acidolysis, the mass ratio of the added dilute hydrochloric acid to the broken material is 1:1, stir and react for 7h, after the reaction is over, use Adjust the pH to 3.5 with ammonia water, stir evenly and let it stand, siphon out the supernatant liquid, and separate the solid-liquid from...

Embodiment 2

[0078] The method for utilizing monazite tailings to produce negative oxygen ion powder comprises the following steps:

[0079] Step 1. Raw material preparation and pretreatment: Dry and crush the monazite tailings through a 200-mesh sieve. Coarse materials below 200 mesh need to be further crushed until all of them are sieved to obtain crushed materials. The temperature must be controlled within 400°C during drying. , otherwise it will have a great impact on the performance of the end product;

[0080] Step two, chemical treatment:

[0081] a. Take the broken material obtained in step 1 and add it to the reaction container, add dilute hydrochloric acid with a mass concentration of 15% for acidolysis, the mass ratio of the added dilute hydrochloric acid to the broken material is 1:1, stir and react for 6h, after the reaction is over, use Adjust the pH to 3.5 with ammonia water, stir evenly and let it stand, siphon out the supernatant liquid, and separate the solid-liquid from...

Embodiment 3

[0095] The method for utilizing monazite tailings to produce negative oxygen ion powder comprises the following steps:

[0096] Step 1. Raw material preparation and pretreatment: Dry and crush the monazite tailings through a 200-mesh sieve. Coarse materials below 200 mesh need to be further crushed until all of them are sieved to obtain crushed materials. The temperature must be controlled within 400°C during drying. , otherwise it will have a great impact on the performance of the end product;

[0097] Step two, chemical treatment:

[0098] a. Take the broken material obtained in step 1 and add it to the reaction container, add dilute hydrochloric acid with a mass concentration of 15% for acidolysis, the mass ratio of the added dilute hydrochloric acid to the broken material is 1:1, stir and react for 8h, after the reaction is over, use Adjust the pH to 3.5 with ammonia water, stir evenly and let it stand, siphon out the supernatant liquid, and separate the solid-liquid from...

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Abstract

The invention specifically relates to a method for producing negative oxygen ion powder by using monazite tailings and application of the negative oxygen ion powder, and belongs to the technical fieldof monazite processing. By pretreatment of monazite tailings, chemical treatment, modification treatment and compounding with barium salt, the negative oxygen ion powder is prepared. The negative oxygen ion powder prepared in the invention can be widely applied to decorative materials such as paint coating, ceramic toilet and bathroom, artificial composite board, furniture, pipelines and the like, can effectively reduce contents of pollutants such as indoor formaldehyde, benzene, etc., and also has excellent antibacterial property. The antibacterial rate can reach up to 99.99%. In addition, the product can release negative oxygen ions good for body health, can purify the air, and has a wide development prospect.

Description

technical field [0001] The invention belongs to the technical field of monazite processing, and in particular relates to a method for producing negative oxygen ion powder by utilizing monazite tailings and the application of the negative oxygen ion powder. Background technique [0002] Monazite is one of the main rare earth metal ores, and its crystal form belongs to monoclinic monoclinic columnar crystals. Many enterprises in my country use monazite as raw material for rare earth smelting. The smelting methods mainly include caustic soda leaching and sulfuric acid roasting, and at least 40,000 tons of monazite tailings are produced every year. The storage of monazite tailings is mainly through sealed stacking, such as building a tailings dam to seal the monazite tailings with concrete and then store them. Therefore, the main problem facing the smelting and extraction of monazite at present is the accumulation of a large amount of tailings. So far There is no effective recy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K9/02C08K9/04C08K9/06C08K3/26C01F17/00
CPCC01F17/247C08K3/26C08K9/02C08K9/04C08K9/06C08K2003/265
Inventor 朱志彬
Owner 泉州市利芝新材料科技有限公司