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

Dry process mechanical force and chemical modification method of superfine calcium carbonate

A mechanochemical and calcium carbonate technology, applied in dyeing low-molecular organic compound treatment, dyeing physical treatment, fibrous filler, etc., can solve the problems of high equipment investment cost and complicated process, and achieve simple structure, improved dispersion, The effect of improving flow properties

Inactive Publication Date: 2006-07-19
CHINA UNIV OF GEOSCIENCES (WUHAN)
View PDF1 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention has high equipment investment cost and complicated process

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
  • Dry process mechanical force and chemical modification method of superfine calcium carbonate
  • Dry process mechanical force and chemical modification method of superfine calcium carbonate
  • Dry process mechanical force and chemical modification method of superfine calcium carbonate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The method of dry mechanochemical ultra-fine modification of calcium carbonate includes the following steps: First, the fine calcium carbonate powder (∠0.074mm) is dehydrated in a drying oven at 100-110°C, and then the calcium carbonate and modifier are mixed with a mixer Stearic acid is evenly mixed, and the added amount of stearic acid is 0.5-5.0% of the mass of calcium carbonate, and then the mixed materials are added to the jet mill to pulverize to obtain ultra-fine modified calcium carbonate.

[0021] (1) Sample source

[0022] Heavy calcium sample H 1 Taken from the "Superfine Heavy Calcium Carbonate Factory in Western Hubei" in Yidu City, Hubei Province.

[0023] Light calcium sample L 1 Taken from Hubei Puqi "Chibi Yangfan Chemical Co., Ltd.".

[0024] (2) The chemical composition of the sample

[0025]

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
Melting pointaaaaaaaaaa
Boiling pointaaaaaaaaaa
Login to View More

Abstract

The related ultrafine modification method for CaCO3 with dry mechanical force and chemical way comprises: dewatering the fine CaCO3 powder in drying tank at 100-110DEG C; mixing the CaCO3 and stearic acid as modifier with mass as 0.5-5.0% of the CaCO3 evenly; loading the mixed material into the jet mill to obtain the target with high activation rate and light CaCO3-2mu m more than 95%. Wherein, the crystal phase structure of the calcite as main mineral phase produces distortion. This invention supplies a gap both at home and abroad.

Description

Technical field [0001] The invention relates to a powder ultrafine modification technology, in particular to a method for chemically modifying calcium carbonate by using mechanical power. Background technique [0002] There are many ways to modify the surface of minerals. Mechanical chemical modification refers to the large amount of mechanical energy applied during mechanical pulverization. In addition to being consumed for particle refinement, there is also a part used to change the crystal lattice and surface structure of the particles, thereby showing activity The mechanical force activation phenomenon that improves the ability to react between phases. The changes in the physical structure and physicochemical properties of particles caused by mechanical forces are called mechanochemical effects. The process of using mechanochemical effects to modify the surface of minerals is called mechanochemical modification. Mechanochemical modification is the addition of modifiers during...

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): C09C3/04C09C3/08C09C1/02
Inventor 杨眉沈上越莫宣学
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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