Preparation method for organosilicone high temperature resisting black iron oxide

A technology of iron oxide black and high temperature resistance, applied in the field of chemical pigments, can solve the problems of discoloration, limiting the use range of iron oxide black, fading and other problems, and achieves the effects of high tinting strength, good acid and alkali resistance, and improved high temperature stability.

Active Publication Date: 2013-12-04
ANHUI QILIN CHEM TECH +1
View PDF10 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When iron oxide black is used in some high temperature occasions, fading and

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0008] A method for preparing organosilicon high-temperature-resistant iron oxide black, using the iron oxide black prepared by the sodium hydroxide oxidation method, directly using the undried oxidized filter cake, adding ethanol solution equivalent to 2% by weight of the iron oxide black filter cake and 1.5% quartz sand, 2000rpm high-speed grinding for 15 minutes, take out and dry, add appropriate amount of water and beat for 20 minutes to make a slurry with a concentration of 55%, and add 5% of the slurry weight of methyltriethoxysilane, 2% Dimethyldiethoxysilane, 7% phenyltriethoxysilane and 0.3% hollow floating beads, heated to 65°C in a water bath, stirred for 3 hours, then refined by colloid mill to a particle size of less than 40μm, filtered , drying and powdering is the finished product.

[0009] The present invention forms a layer of organosilicon-hollow beads on the iron oxide black surface through the reaction between oxymethyltriethoxysilane, dimethyldiethoxysilan...

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 preparation method for organosilicone high temperature resisting black iron oxide, wherein the black iron oxide is prepared by adopting the sodium hydroxide oxidation method, and the preparation method comprises the following steps: a black iron oxide filter cake, which is not kiln dried, is directly used; ethanol solution, the weight of which is 2-3% of that of the black iron oxide filter cake, and silica sand, the weight of which is 1-2% of that of the black iron oxide filter cake, are added; the mixture is ground for 15-20 minutes at the speed of 1500-2500 rpm; the powder is taken out and dried, appropriate water is added, pulping is performed for 20-25 minutes, and seriflux with the concentration of 55-60% is prepared; methyl triethoxy silane, the weight of which is 4-6% of that of the seriflux, dimethyl dioxethyl silane, the weight of which is 2-3% of that of the seriflux, phenyl triethoxy silane, the weight of which is 5-8% of that of the seriflux, and hollow floating beads, the weight of which is 0.3-0.4% of that of the seriflux, are added, and the mixture is heated in water bath to 60-70 DEG C and stirred for 2-3 hours; a colloid mill is utilized to grind the seriflux until the grain size is less than 40 Mum; filtering, drying and powdering are performed, and the finished product is generated. The black iron oxide, disclosed by the invention, has superior high temperature resisting property and can bear the high temperature of 500-600 DEG C.

Description

technical field [0001] The invention relates to a method for preparing organosilicon high-temperature-resistant iron oxide black, which belongs to the field of chemical pigments. Background technique [0002] Iron-based pigments are important inorganic color pigments, and their annual output ranks first in inorganic color pigments. Due to the strengthening of the world's environmental protection awareness, inorganic iron-based pigments have continuously replaced organic pigments, red lead, lead chrome yellow and other lead-based and chromium-based toxic inorganic pigments due to their non-toxic, odorless, and non-polluting characteristics. Iron oxide black is widely used in paints and coatings in the construction industry due to its simple chemical composition, non-toxic and pollution-free, and strong chemical stability. However, iron oxide black will dehydrate and oxidize to iron red when the temperature reaches about 100°C. When iron oxide black is used in some high temp...

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): C09C1/24C09C3/12C09C3/04
Inventor 吴墨可朱盛
Owner ANHUI QILIN CHEM TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap