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Method used for illite microwave heating solid-like-phase steam conversion method synthesis of analcime

A technology of microwave heating and illite, applied in the direction of crystalline aluminosilicate zeolite, etc., can solve the problems of environmental pollution, long synthesis time, high cost, etc., and achieve the effects of cost reduction, high value-added development, and short reaction time

Active Publication Date: 2019-11-01
YANBIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional hydrothermal synthesis of analcime, the synthetic raw materials are mainly chemical raw materials rich in silicon and aluminum elements, the required synthesis temperature is high, and the synthesis time is long. The resulting industrial synthesis of analcime is not only expensive, but also There is a large amount of highly alkaline wastewater produced by synthesis, which causes great pollution to the environment

Method used

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  • Method used for illite microwave heating solid-like-phase steam conversion method synthesis of analcime
  • Method used for illite microwave heating solid-like-phase steam conversion method synthesis of analcime

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Experimental program
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Effect test

Embodiment 1

[0025] A method for synthesizing analcime by illite microwave heating class solid-phase steam conversion method, is characterized in that, concrete steps are as follows:

[0026] (1), ball milling natural illite to 80 orders;

[0027] (2), sodium hydroxide and illite powder are uniformly mixed, and wherein, the mass ratio of illite and sodium hydroxide is 1:0.8;

[0028] (3), transfer the mixed material to a microwave synthesizer to synthesize analcime; the reaction conditions of the microwave synthesizer are: the temperature is 170°C, the reaction time of the mixed material in the microwave digestion tank is 15 minutes, and the microwave synthesizer The solid-to-liquid ratio of the internal solvent (water) to the mixed material is 3g / ml.

[0029] (4) The reaction product is taken out, washed until neutral, filtered, and the solid product obtained by drying is analcime powder; the filtrate is a potassium-sodium silicate mixed solution.

Embodiment 2

[0031] (1), ball milling natural illite to 200 orders;

[0032] (2), sodium hydroxide and illite powder are uniformly mixed, and wherein, the mass ratio of illite and sodium hydroxide is 1:0.8;

[0033] (3) Transfer the mixed material to a microwave digestion tank for synthesis of analcime; the reaction conditions of the microwave synthesizer are: the temperature is 100°C, the reaction time of the mixed material in the microwave digestion tank is 40 minutes, and the microwave synthesizer The solid-to-liquid ratio of the internal solvent (water) to the mixed material is 3g / ml.

[0034] (4) The reaction product is taken out, washed until neutral, filtered, and the solid product obtained by drying is analcime powder; the filtrate is a potassium-sodium silicate mixed solution.

Embodiment 3

[0036] (1), ball milling natural illite to 200 orders;

[0037] (2), sodium hydroxide and illite powder are uniformly mixed, and wherein, the mass ratio of illite and sodium hydroxide is 1:0.8;

[0038] (3) Transfer the mixed material to a microwave digestion tank for synthesis of analcime; the reaction conditions of the microwave synthesizer are: the temperature is 170°C, the reaction time of the mixed material in the microwave digestion tank is 30 minutes, and the microwave synthesizer The solid-to-liquid ratio of the internal solvent (water) to the mixed material is 3g / ml.

[0039] (4) The reaction product is taken out, washed until neutral, filtered, and the solid product obtained by drying is analcime powder; the filtrate is a potassium-sodium silicate mixed solution.

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Abstract

The invention discloses a method used for illite microwave heating solid-like-phase steam conversion method synthesis of analcime, and belongs to the technical field of illite synthesis of zeolite andsylvine extraction. The method comprises following steps: natural illite is crushed, and is subjected to ball milling to obtain illite powder with particle size of 80 to 200 meshes; the illite powderand solid sodium hydroxide are mixed to be uniform at a certain mass ratio, and are introduced into a microwave digestion tank for processing, wherein in the microwave digestion tank, the solid / liquid ratio of solvent (water) to an obtained mixed material is controlled to be 2 to 5g / ml; after reaction, an obtained solid mixture is subjected to filtering, washing until pH value is 7, and drying soas to obtain solid analcime, and an obtained filtrate is a sodium potassium silicate solution, and can be used for preparation of sylvite products. The method is capable of realizing high extractionof potassium without high temperature roasting in high added value development of illite resource, and cheap raw materials and technology suitable for large scale industrialized production are provided for analcime synthesis.

Description

technical field [0001] The invention relates to the technical field of synthesizing zeolite from illite and extracting potassium salt, in particular to a method for synthesizing analcime by illite microwave heating and solid-phase steam conversion method. Background technique [0002] Illite is a 2:1 layered silicate mica-like clay mineral, which has been regarded as a potential source of potassium fertilizer because of its potassium-rich characteristics. However, the inherent layered structure of illite is stable in the natural state. In order to efficiently extract the abundant potassium components in illite and obtain silica-alumina raw materials suitable for zeolite synthesis, it is often necessary to mix illite with an activator, and then High-temperature activation and acid / alkali washing destroy its inherent structure in order to obtain a potassium-rich solution and geo-mineral polymers suitable for zeolite synthesis. So far, there has been no report on the method of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B39/02
CPCC01B39/02C01P2002/72
Inventor 姜男哲历新宇孟万许景哲陈爽管冬冬苏重洋
Owner YANBIAN UNIV
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