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

Process for synthesizing analcite from potassium feldspar powder by virtue of hydro-thermal alkaline method

A technology of potassium feldspar powder and synthesis method, applied in the direction of crystalline aluminosilicate zeolite, alkali metal silicate, silicate, etc., to achieve the effect of reducing raw material cost, improving economic benefit and reducing cost

Inactive Publication Date: 2015-01-21
CHINA UNIV OF GEOSCIENCES (BEIJING)
View PDF4 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, so far, the direct conversion of potassium feldspar powder into zeolite in alkaline solution has not been reported

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
  • Process for synthesizing analcite from potassium feldspar powder by virtue of hydro-thermal alkaline method
  • Process for synthesizing analcite from potassium feldspar powder by virtue of hydro-thermal alkaline method
  • Process for synthesizing analcite from potassium feldspar powder by virtue of hydro-thermal alkaline method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The raw potash feldspar ore is crushed, ground, and beneficiated to obtain potash feldspar powder raw materials. The chemical composition is as follows (%):

[0034] Table 1 Chemical composition analysis results of potash feldspar powder (w B %)

[0035]

[0036] The main phase composition of the potash feldspar mineral powder is: potash feldspar 69%.

[0037] Mix the potash feldspar powder raw material, sodium hydroxide and distilled water according to the ratio (the concentration of sodium hydroxide solution is 2M, the mass ratio of sodium hydroxide solution / potash feldspar powder = 1:2), and after fully stirring, the mixture slurry Transfer to a 1000mL autoclave, heat to 260℃, keep constant temperature for 3 hours, cool to room temperature naturally, filter, wash 4~5 times until the pH of the lotion is 7~8, put the filter cake in an oven, and dry at 105 ℃, time 16-24h, get a solid sample, the solid sample is analcime.

Embodiment 2

[0039] The raw potash feldspar ore is crushed, ground, and beneficiated to obtain potash feldspar powder raw materials. The chemical composition is as follows (%):

[0040] Table 1 Chemical composition analysis results of potash feldspar powder (w B %)

[0041]

[0042] The main phase composition of the potash feldspar mineral powder is: potash feldspar 69%.

[0043] Mix the potash feldspar powder raw materials, sodium hydroxide and distilled water according to the proportion (the concentration of sodium hydroxide solution is 6M, the mass ratio of sodium hydroxide solution / potash feldspar powder = 1:10), and after fully stirring, the mixture slurry Transfer to a 1000mL autoclave, heat to 260℃, keep constant temperature for 8 hours, cool to room temperature naturally, filter, wash 4~5 times until the pH of the lotion is 7~8, put the filter cake into the oven, and dry at 105 ℃, time 16-24h, get a solid sample, the solid sample is analcime. The chemical composition (Table 2) and phase...

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 discloses a process for synthesizing analcite from potassium feldspar powder by virtue of a hydro-thermal alkaline method. The process comprises the following steps: crushing potassium feldspar ores, grinding into powder of which the particle size is less than 74 microns, then fully mixing the potassium feldspar powder with a sodium hydroxide solution with a certain concentration to prepare a slurry, performing hydro-thermal treatment on the slurry for 1-12 hours in a reaction kettle under the condition that the temperature is 180-260 DEG C, and performing filtration, washing and drying on an obtained mixture to prepare analcite powder after reaction ends, wherein an obtained filter liquor is a mixed alkaline liquor of potassium silicate and sodium silicate, and can be used for preparing potassium salt. The process disclosed by the invention provides a cheap potassium feldspar raw material and a simple and feasible process for the synthesis of analcite, and also can be used for solving the problems of quantity reduction and efficient utilization of silicon-aluminum by-products in a process of preparing the potassium salt from potassium feldspar.

Description

Technical field [0001] The invention relates to the field of potassium feldspar synthesis of zeolite and preparation of potassium salt, in particular to a process for synthesizing analcime from potassium feldspar powder by hydrothermal alkali method. Background technique [0002] Potash feldspar is one of the main aluminosilicate minerals that make up the earth's crust, including diopside, orthoclase and microplain. Under long-term geological action, potash feldspar can be transformed into zeolite after weathering or hydrothermal action, and the potassium in it can be directly transformed into potassium carbonate. However, in the laboratory, it is very difficult to directly synthesize zeolite from potash feldspar powder. It is often necessary to first mix potash feldspar with soda ash and other additives and calcinate to obtain water-soluble or acid-soluble compounds, and then synthesize zeolite. The method of direct hydrothermal treatment of potassium feldspar to synthesize zeo...

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
IPC IPC(8): C01B39/02C01B33/32
CPCC01B33/32C01B39/02C01P2002/72
Inventor 杨静马鸿文曾诚王时健刘昶江马玺王红丽
Owner CHINA UNIV OF GEOSCIENCES (BEIJING)
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com