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Preparation method of iron oxide pigment

An iron oxide pigment and slurry technology, applied in chemical instruments and methods, inorganic pigment treatment, fibrous fillers, etc., can solve the problems of difficult source of surface treatment agent, poor dispersibility and suspension, fast settling speed, etc. Application cost, particle size reduction, effect of slower settling velocity

Active Publication Date: 2010-11-17
SHANGHAI YIPIN PIGMENTS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved in the present invention is to disclose a preparation method of iron oxide pigments, so as to overcome the poor dispersibility and suspending property of the prior art, fast settling speed, easy agglomeration and agglomeration, and difficult sources of surface treatment agents. The higher price and the defects of the current general dry grinding machinery

Method used

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  • Preparation method of iron oxide pigment
  • Preparation method of iron oxide pigment
  • Preparation method of iron oxide pigment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] 0.8 kg of sodium silicate, 0.3 kg of butyl titanate and 0.5 kg of polyoxyethylene 6 sorbitan monolaurate were added to 100 kg of slurry with an iron oxide content of 60 wt%, stirred for 1 hour, and dried to contain The amount of water is less than 1wt%, crushed to obtain a dry material;

[0022] Add 0.4 kg of propylene glycol and 0.4 kg of butanediol into 100 kg of the above-mentioned powder, and stir evenly to obtain the iron oxide pigment of the present invention. The test results are shown in Table 1.

Embodiment 2

[0024] 0.5 kg of sodium silicate, 0.1 kg of butyl titanate and 0.3 kg of Tween 60 were added to 100 kg of slurry with an iron oxide content of 30 wt%, stirred for 1 hour, dried until the water content was less than 1 wt%, crushed to obtain dry material;

[0025] Add 0.3 kg of propylene glycol and 0.3 kg of butanediol into 100 kg of the above-mentioned powder, and stir evenly to obtain the iron oxide pigment of the present invention. The test results are shown in Table 1.

Embodiment 3

[0027] Add 0.5 kg of sodium silicate, 0.5 kg of butyl titanate, 0.4 kg of polyoxyethylene castor oil diglyceride and 0.4 kg of caprylic capric acid macrogolglyceride to 100 kg of a slurry with an iron oxide content of 30 wt%. , stirred for 1 hour, dried until the water content was less than 1wt%, and pulverized to obtain a dry material;

[0028] Add 0.3 kg of propylene glycol and 0.5 kg of butanediol into 100 kg of the above-mentioned powder, and stir evenly to obtain the iron oxide pigment of the present invention. The test results are shown in Table 1.

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Abstract

The present invention discloses a preparation method of iron oxide pigment. It includes, the preparation of iron oxide pigment slurry, and it is characterized by that it also includes wet surface treatment step: adding wet surface treating agent into iron oxide pigment slurry, stirring them, drying, pulverizing so as to obtain dried material. The described wet surface treating agent is inorganic surface treating agent, non-ionic surfactant and organic surface treating agent titanate.

Description

technical field [0001] The invention relates to a production method of inorganic pigments, in particular to a production method of iron oxide pigments, in particular to a surface treatment method of iron oxide pigments. Background technique [0002] Iron oxide pigments mainly refer to iron oxide red, iron yellow, iron black, iron orange, iron brown and other colored pigments whose basic substance is iron oxide. Iron oxide pigments are characterized by their many colors, wide spectrum, non-toxic and cheap Features, widely used in coatings, building materials, plastics, electronics, tobacco, abrasives, medicine, pet feed additives and other industries. Worldwide, the production and sales volume of iron oxide pigments is second only to titanium dioxide, and it is the second largest inorganic color pigment with a wide range. The world's consumption of iron oxide pigments reaches 1 million tons per year. [0003] However, the properties of currently commercially available iron o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09C1/24C09C3/06C09C3/08
Inventor 王丹英
Owner SHANGHAI YIPIN PIGMENTS CO LTD
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