Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of method for preparing potassium chloride from solid ore containing potassium ammonium magnesium

A solid ore, potassium chloride technology, applied in the direction of alkali metal chloride and the like, can solve problems such as unsuitable application, and achieve the effects of low cost, simple process and improved resource utilization.

Active Publication Date: 2019-09-17
QINGHAI INST OF SALT LAKES OF CHINESE ACAD OF SCI
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Potassium chloride is mainly used in the inorganic industry. It is the basic raw material for the manufacture of various potassium salts or alkalis such as potassium hydroxide, potassium sulfate, potassium nitrate, potassium chlorate, and potassium alum. For example, it is used as a diuretic in the pharmaceutical industry and prevents potassium deficiency. In the dye industry, it is used to produce G salt, reactive dyes, etc.; in agriculture, it is used as potassium fertilizer, which has a fast fertilizer effect and is directly applied to farmland, which can increase the moisture in the lower layer of the soil and have the effect of drought resistance. But in saline-alkali land and tobacco , sweet potato, sugar beet and other crops should not be applied

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of method for preparing potassium chloride from solid ore containing potassium ammonium magnesium
  • A kind of method for preparing potassium chloride from solid ore containing potassium ammonium magnesium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The method for preparing potassium chloride from the solid ore containing potassium ammonium magnesium of the present embodiment may further comprise the steps:

[0041] In step S1, the solid ore is crushed and passed through a 40-mesh sieve, and the first sieve is taken for later use.

[0042] In step S2, the first undersize and fresh water are mixed according to the mass ratio of 2:1, and stirred at 0°C for 4 hours to fully decompose, and then wet sieved through a 40-mesh sieve for solid-liquid separation to obtain the The second oversize with a potassium ion content of 11%, the second undersize with a potassium ion content of 33%, and the liquid phase; the potassium ion yield is 65%.

[0043] In step S3, the second undersize and the liquid phase are mixed for a flotation. The conditions of the first flotation are that the solid-liquid ratio is 1:3, the dosage of the flotation agent is 7mL, the mixing is 5 minutes, and the flotation is 1 minute. The obtained first Th...

Embodiment 2

[0046] The method for preparing potassium chloride from the solid ore containing potassium ammonium magnesium of the present embodiment may further comprise the steps:

[0047] In step S1, the solid ore is crushed and passed through a 40-mesh sieve, and the first sieve is taken for later use.

[0048] In step S2, the first undersize and fresh water are mixed according to the mass ratio of 10:7, and stirred at 25°C for 16 hours to fully decompose, and then wet sieved through an 80-mesh sieve for solid-liquid separation to obtain the The potassium ion yield of the second oversize material with a potassium ion content of 10%, the second undersize material with a potassium ion content of 37% and the liquid phase is 63%.

[0049] In step S3, the second undersize and the liquid phase are mixed for a flotation. The conditions of the first flotation are that the solid-liquid ratio is 1:6, the dosage of the flotation agent is 7mL, the mixing is 10 minutes, and the flotation is 3 minute...

Embodiment 3

[0052] The method for preparing potassium chloride from the solid ore containing potassium ammonium magnesium of the present embodiment may further comprise the steps:

[0053] In step S1, the solid ore is crushed and passed through a 40-mesh sieve, and the first sieve is taken for later use.

[0054] In step S2, the first undersize and fresh water were mixed according to a mass ratio of 5:3, and stirred at 20°C for 8 hours to fully decompose, and then wet sieved through a 60-mesh sieve and separated from solid and liquid to obtain the The second oversize with a potassium ion content of 10%, the second undersize with a potassium ion content of 36% and the liquid phase; the yield of potassium ions is 64%.

[0055] In step S3, the second undersize is mixed with the liquid phase to carry out a flotation. The conditions of the first flotation are that the solid-liquid ratio is 1:9, the dosage of the flotation agent is 8mL, the mixing is 8 minutes, and the flotation is 2 minutes. T...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a method for preparing potassium chloride from a solid ore containing potassium, ammonium and magnesium. The solid ore contains the following components in percentage by weight:5.1%-5.9% of potassium ions, 1.0%-1.4% of ammonium ions, 9.5%-10.0% of magnesium ions and 35.2%-37.1% of chloride ions. The method comprises the following steps: (S1) crushing the solid ore containing potassium, ammonium and magnesium, and sieving, so as to obtain a first screen underflow; (S2) mixing the first screen underflow with water in a mass ratio of (100) to (50-70) to adequately decomposing the first screen underflow, carrying out wet sieving by virtue of a 40-80-mesh sieve, and carrying out solid-liquid separation, so as to obtain a second screen underflow; and (S3) carrying out primary flotation on the second screen underflow so as to obtain a first flotation concentrate, and carrying out washing, solid-liquid separation and drying, so as to obtain the potassium chloride product. According to the method, a decomposing-sieving-floatation process is formulated according to the constitution of the solid ore containing potassium, ammonium and magnesium and is utilized for preparing potassium chloride, obtained potassium chloride can be used as a production raw material, the whole process flow is simple and low in cost, the utilization problem of potassium is solved, and theresource utilization rate is effectively increased.

Description

technical field [0001] The invention belongs to the technical field of inorganic / salt lake chemical industry, and in particular relates to a method for preparing potassium chloride from solid ore containing potassium ammonium magnesium. Background technique [0002] Potassium chloride is mainly used in the inorganic industry. It is the basic raw material for the manufacture of various potassium salts or alkalis such as potassium hydroxide, potassium sulfate, potassium nitrate, potassium chlorate, and potassium alum. For example, it is used as a diuretic in the pharmaceutical industry and prevents potassium deficiency. In the dye industry, it is used to produce G salt, reactive dyes, etc.; in agriculture, it is used as potassium fertilizer, which has a fast fertilizer effect and is directly applied to farmland, which can increase the moisture in the lower layer of the soil and have the effect of drought resistance. But in saline-alkali land and tobacco , sweet potato, sugar b...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C01D3/08
Inventor 魏明杨红军王敏钟远
Owner QINGHAI INST OF SALT LAKES OF CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com