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

Method for preparing cauliflower-like calcium sulfite microparticles

A calcium sulfite, cauliflower-like technology, applied in the direction of calcium/strontium/barium sulfite, etc., to achieve the effects of environmental protection of raw materials, great application value and simple operation

Active Publication Date: 2016-11-16
GUANGXI UNIVERSITY OF TECHNOLOGY +1
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few reports at home and abroad on the application of calcium sulfite with different shapes in the purification of sugar juice.

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
  • Method for preparing cauliflower-like calcium sulfite microparticles
  • Method for preparing cauliflower-like calcium sulfite microparticles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment 1: In 100ml beaker, prepare the calcium chloride solution of 0.1mol / L and the sodium sulfite solution of 0.1mol / L with water respectively, calcium chloride solution and sodium sulfite solution are filtered with 0.45 μm filter membrane respectively, remove undissolved Impurities, collect the filtrate, then dissolve 0.038g of citric acid in 100ml of calcium chloride solution, and adjust the pH of the calcium chloride solution to 10 with 0.5mol / L sodium hydroxide solution to fully deprotonate it. Then sodium sulfite solution was slowly added to an equal volume of calcium chloride solution, and stirred slowly. Finally, the generated calcium sulfite precipitate was filtered, centrifuged, washed alternately with double distilled water and absolute ethanol three times, and fully dried at 60°C. The particle size distribution is 5~10μm, uniform distribution, cauliflower-like calcium sulfite particles.

Embodiment 2

[0014] Embodiment 2: prepare respectively the calcium chloride aqueous solution of 0.2mol / L and the sodium sulfite aqueous solution of 0.2mol / L in the 100ml beaker, filter with 0.45 μm filter membrane then, remove undissolved impurity, then get the lemon of 0.076g Dissolve the acid in 100ml of calcium chloride solution, and adjust the pH of the calcium chloride solution to 10 with 0.5mol / L sodium hydroxide solution to fully deprotonate it. Then sodium sulfite solution was slowly added to an equal volume of calcium chloride solution, and stirred slowly. Finally, the generated calcium sulfite precipitate was filtered, centrifuged, washed alternately with double distilled water and absolute ethanol three times, and fully dried at 60°C. The particle size distribution is 5~10μm, uniform distribution, cauliflower-like calcium sulfite particles.

Embodiment 3

[0015] Embodiment 3: prepare the calcium chloride solution of 0.3mol / L and the sodium sulfite solution of 0.3mol / L with water respectively in the 100ml beaker, filter with 0.45 μm filter membrane then, remove undissolved impurity, then get 0.11g of Dissolve citric acid in 100ml of calcium chloride solution, and adjust the pH of the calcium chloride solution to 10 with 0.5mol / L sodium hydroxide solution to fully deprotonate it. Then sodium sulfite solution was slowly added to an equal volume of calcium chloride solution, and stirred slowly. Finally, the generated calcium sulfite precipitate was filtered, centrifuged, washed alternately with double distilled water and absolute ethanol three times, and fully dried at 60°C. The particle size distribution is 5~10μm, uniform distribution, cauliflower-like calcium sulfite particles.

[0016] The water used to prepare the solutions in the various embodiments of the present invention is double distilled water.

[0017] In each embodi...

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

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a method for preparing cauliflower-like calcium sulfite microparticles. The method comprises the steps of separately preparing a calcium chloride solution of finite concentration and a sodium sulfite solution of finite concentration from calcium chloride and sodium sulfite which serve as raw materials by using water, carrying out filtrating by using filtration membranes, collecting filtrates, adding a certain volume of citric acid into the calcium chloride solution, adjusting the pH of the calcium chloride solution to 10 by using a sodium hydroxide solution, slowly adding the sodium sulfite solution into the calcium chloride solution while carrying out stirring, finally, filtrating produced calcium sulfite precipitates, carrying out centrifuging, carrying out washing with secondary distilled water and anhydrous ethanol alternately, and carrying out drying at the temperature of 60 DEG C, thereby obtaining cauliflower-like calcium sulfite. According to the method, the morphology of the obtained product is cauliflower-like, the particle size is 5 to 10 microns and is uniform in distribution, the preparation process is simple, the cost is low, and the raw materials are safe and non-toxic, so that the method has a great application value in the field of purification of cane sugar juice.

Description

technical field [0001] The invention relates to a preparation method of cauliflower-like calcium sulfite particles, belonging to the field of inorganic chemical industry. Background technique [0002] Calcium sulfite is a white crystalline powder that contains 0.5 molecules of crystal water (CaSO 3 0.5H 2 O), heating at 360-390°C will lose crystallization water, and can be decomposed into calcium oxide and sulfur dioxide at 650°C, insoluble in water, used for calcium-plastic materials, cellulose products bleaching and dechlorination agents, food preservatives and fermentation Bactericides are widely used, especially in the sugar industry. It can be made by passing sulfur dioxide into milk of lime or reacting calcium chloride and sodium sulfite. [0003] The application of nascent calcium sulfite in the sugar industry is mainly reflected in the cleaning process of sugar cane juice. Calcium sulfite particles are formed by the reaction of lime and sulfur dioxide or calcium ...

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 Applications(China)
IPC IPC(8): C01F11/48
CPCC01F11/48C01P2004/03C01P2004/30C01P2004/50C01P2004/61
Inventor 李利军向富友程昊李子日黄文艺李彦青
Owner GUANGXI UNIVERSITY OF TECHNOLOGY
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