Method for producing soluble potassium through potassium feldspar

A soluble, potassium feldspar technology, applied in the preparation of sulfate/bisulfate and other directions, can solve the problems of low potassium conversion rate, cumbersome process, large energy consumption, etc., and achieves improved conversion rate, high potassium dissolution rate, and material reaction. full effect

Inactive Publication Date: 2015-11-25
铜仁市万山区盛和矿业有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for producing soluble potassium from potassium feldspar, which solves the problems of high energy consumption, high cost, low potassium conversion rate, complicated process and long time consumption in the prior art, so that potassium feldspar can be efficiently obtained Processing, the present invention is specifically realized by the following methods:

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A method for producing soluble potassium from potassium feldspar, the process steps are:

[0031] (1) After the potassium feldspar is crushed to a particle size of 200 μm, it is mixed with an activator at room temperature for 7 minutes to obtain material A;

[0032] (2) After material A was soaked in an acid solution with a concentration of 60% for 5 minutes, material B was obtained, which was transferred to an ultrasonic microwave reactor, and the ultrasonic microwave reaction was carried out for 3 times under the condition of controlling the temperature of the material at 70°C. obtain intermediate products;

[0033] (3) After solid-liquid separation of the intermediate product, solid A and liquid A are obtained, and solid A is washed 3 times with water to obtain liquid B, which is mixed with liquid A uniformly to obtain liquid C. It is dried until the moisture content is 0.05%, and the soluble potassium product is obtained.

[0034] The Mohs hardness of the potassiu...

Embodiment 2

[0042] A kind of method that potassium feldspar produces soluble potassium, it is characterized in that, described processing step is:

[0043] (1) After crushing potassium feldspar to a particle size of 90 μm, mix it with an activator for 4 minutes at room temperature to obtain material A;

[0044] (2) After material A was soaked in an acid solution with a concentration of 90% for 4 minutes, material B was obtained, which was transferred to an ultrasonic microwave reactor, and the ultrasonic microwave reaction was carried out for 3 times under the condition of controlling the temperature of the material at 115° C., obtain intermediate products;

[0045] (3) After solid-liquid separation of the intermediate product, solid A and liquid A are obtained, and solid A is washed 2-5 times with water to obtain liquid B, which is mixed with liquid A uniformly to obtain liquid C. It is dried under the same conditions until the water content is 5%, and the soluble potassium product is o...

Embodiment 3

[0054] A kind of method that potassium feldspar produces soluble potassium, it is characterized in that, described processing step is:

[0055] (1) After the potassium feldspar is crushed to a particle size of 800 μm, it is mixed with an activator at room temperature for 9 minutes to obtain material A;

[0056] (2) After material A was soaked in an acid solution with a concentration of 80% for 4 minutes, material B was obtained, which was transferred to an ultrasonic microwave reactor, and the ultrasonic microwave reaction was carried out twice under the condition of controlling the material temperature at 150° C., obtain intermediate products;

[0057] (3) After solid-liquid separation of the intermediate product, solid A and liquid A are obtained, and solid A is washed 4 times with water to obtain liquid B, which is uniformly mixed with liquid A to obtain liquid C. It is dried until the moisture content is 0.08%, and the soluble potassium product is obtained.

[0058] The ...

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Abstract

The invention relates to the field of chemical engineering production, in particular to a method for producing soluble potassium through potassium feldspar. The soluble potassium can be obtained by crushing the potassium feldspar till the particle size is smaller than 1000 micrometers, mixing the potassium feldspar with an activating agent for 3-10 min under the normal temperature to obtain a material A, soaking the material A in an acid solution with the concentration of 50-85% for 3-6 min to obtain a material B, conducting an ultrasonic microwave reaction 1 to 6 times under the condition that the material temperature is controlled at 80-120 DEG C to obtain an intermediate product, conducting solid-liquid separation on the intermediate product to obtain solid A and liquid A, washing the solid A through water 2 to 5 times to obtain liquid B, mixing the liquid B with the liquid A to obtain liquid C, and drying the liquid C under the condition of the constant temperature of 50-90 DEG C till the moisture content is smaller than 0.3%. The method is not high in requirement for devices, low in production condition and cost and high in potassium leaching rate, and the potassium feldspar can be used for producing soluble potassium in an efficient and low-energy mode.

Description

technical field [0001] The invention relates to the field of chemical production, in particular to a method for producing soluble potassium from potassium feldspar. Background technique [0002] my country is rich in potassium ore resources, but soluble potassium resources are limited. Therefore, the development and utilization of insoluble potassium resources is of great significance. Among them, insoluble potassium includes potassium feldspar, alunite, glauconite, biotite, etc. [0003] As a representative of insoluble potassium resources, potassium feldspar has high potassium content, abundant reserves and wide distribution, so it has important research value. There are many methods to produce soluble potassium by using potassium feldspar. Among them, the sintering method consumes a lot of energy and potassium Low conversion rate restricts popularization; blast furnace smelting method is limited in development due to limited product use and excessive energy consumption. A...

Claims

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Application Information

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IPC IPC(8): C01D5/02
Inventor 袁再六
Owner 铜仁市万山区盛和矿业有限责任公司
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