CN103305031B - Preparation method of precipitated white graphite/graphite iron oxide black granule - Google Patents
Preparation method of precipitated white graphite/graphite iron oxide black granule Download PDFInfo
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- CN103305031B CN103305031B CN201310194565.3A CN201310194565A CN103305031B CN 103305031 B CN103305031 B CN 103305031B CN 201310194565 A CN201310194565 A CN 201310194565A CN 103305031 B CN103305031 B CN 103305031B
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Abstract
The invention discloses a preparation method of a diatomite modified iron oxide black granule. The preparation method specifically comprises the following steps of: dissolving diatomite powder, sodium lignin sulfonate and sodium alcohol ether sulphate into deionized water in a certain weight ratio to obtain a viscous liquid; adding precipitated white carbon black and graphite powder to the prepared viscous liquid for modifying; adding iron oxide black to a granulator for granulating and uniformly spraying the modified viscous liquid onto the iron oxide black powder at the same time to form small iron oxide black granules; and drying and screening to obtain the finished product. According to the preparation method, the modification is realized through the diatomite powder, sodium lignin sulfonate and sodium alcohol ether sulphate, therefore, the adsorbing performance of the iron oxide black can be improved, the odor can be absorbed easily, and the environment can be improved.
Description
Technical field
The present invention relates to a kind of preparation method of iron oxide black, be specifically related to a kind of preparation method who precipitates the iron black particle of white graphite/graphite oxidation.
Background technology
Iron oxide black, molecular formula is Fe
3o
4, be black powder, be Fe
2o
3with the affixture of FeO, water insoluble, there is magnetic, tinting strength and opacifying power are very high.A kind of as in iron pigment of iron oxide black, due to its feature such as nontoxic, odorless, pollution-free, is widely used in phenolic antirust paint filler, heavy-duty coating priming paint etc. in building trade; When for rubber, plastics painted, there is the aging effect of reinforcement, protect organism by the feature of ultraviolet degradation simultaneously; In addition also painted for artificial marble, pottery and cement flooring.But the phenomenons such as iron oxide black can fade under comparatively high temps, variable color, heat-resistant stability is poor, thereby has limited the use range of iron oxide black.
Summary of the invention
The object of the present invention is to provide a kind of preparation method who precipitates the iron black particle of white graphite/graphite oxidation, improve the high-temperature stability of iron oxide black.
The technical solution used in the present invention is as follows:
A preparation method for silicon bath land reform iron oxide black particle, comprises the following steps:
(1) by weight 3-4:2-3:1, take diatomite in powder, sodium lignosulfonate and polyoxyethylenated alcohol sodium sulfate and add in 8-12 times of deionized water, heating in water bath is to 55-65 ℃, and ultrasonic dispersion 25-30 minute, obtains viscous liquid; In the above-mentioned viscous liquid making, add the precipitated silica of 1-3% and the Graphite Powder 99 of 2-3%, 2500-3000rpm high speed shear is disperseed 10-15 minute, obtains the viscous liquid of precipitated silica and Graphite Powder 99 modification;
(2) get by weight 100-120 part iron oxide black and add in tablets press and carry out granulation, the modification viscous liquid simultaneously 40-50 part step (1) being made sprays on iron oxide black powder equably, forms iron oxide black small-particle;
(3) iron oxide black particle step (2) being made is dried at 85-95 ℃, then crosses 40-60 mesh sieve, gets product.
Beneficial effect of the present invention:
The present invention carries out modification by diatomite in powder, sodium lignosulfonate and polyoxyethylenated alcohol sodium sulfate, can improve the absorption property of iron oxide black, be conducive to absorb peculiar smell, be conducive to improve environment, the iron oxide black that the present invention produces has superior heat resistance, the features such as well acidproof, alkaline resistance properties and light absorptive is strong, tinting strength is high, consistency is good, good dispersity, have huge market outlook.
Embodiment
a preparation method for silicon bath land reform iron oxide black particle, comprises the following steps:
(1) by weight 3:2:1, take diatomite in powder, sodium lignosulfonate and polyoxyethylenated alcohol sodium sulfate and add in 10 times of deionized waters, heating in water bath to 60 ℃, ultrasonic dispersion 25 minutes, obtains viscous liquid;
(2) in the above-mentioned viscous liquid making, add 2% precipitated silica and 2% Graphite Powder 99,3000rpm high speed shear is disperseed 10 minutes, obtains the viscous liquid of precipitated silica and Graphite Powder 99 modification;
(3) get by weight 120 parts of iron oxide blacks and add in tablets press and carry out granulation, the modification viscous liquid simultaneously 45 parts of steps (2) being made sprays on iron oxide black powder equably, forms iron oxide black small-particle;
(4) iron oxide black particle step (3) being made is dried at 95 ℃, then crosses 50 mesh sieves, gets product.
Ultrasonic power described in step (1) is 600W, and ultrasonic frequency is 30KHz.
The rotating speed of the tablets press described in step (3) is 2000rpm.
The iron oxide black product performance analysis data that the present embodiment is produced is as following table:
| Project | Index | Detected result |
| The water solubles (%) | ≤1.0 | ?0.66 |
| 105 ℃ of volatile matters (%) | ≤1.0 | 0.74 |
| Oil number (%) | 15-25 | 22.6 |
| Tinctorial strength (%) | 95-105 | 98.5 |
| Resistance to 200 ℃/30min (△ E) | ≤1.0 | 0.70 |
Claims (3)
1. a preparation method for silicon bath land reform iron oxide black particle, is characterized in that comprising the following steps:
(1) by weight 3-4:2-3:1, take diatomite in powder, sodium lignosulfonate and polyoxyethylenated alcohol sodium sulfate and add in 8-12 times of deionized water, heating in water bath is to 55-65 ℃, and ultrasonic dispersion 25-30 minute, obtains viscous liquid; In the above-mentioned viscous liquid making, add the precipitated silica of 1-3% and the Graphite Powder 99 of 2-3%, 2500-3000rpm high speed shear is disperseed 10-15 minute, obtains the viscous liquid of precipitated silica and Graphite Powder 99 modification;
(2) get by weight 100-120 part iron oxide black and add in tablets press and carry out granulation, the modification viscous liquid simultaneously 40-50 part step (1) being made sprays on iron oxide black powder equably, forms iron oxide black small-particle;
(3) iron oxide black particle step (2) being made is dried at 85-95 ℃, then crosses 40-60 mesh sieve, gets product.
2. the preparation method of a kind of silicon bath land reform iron oxide black particle according to claim 1, is characterized in that, the ultrasonic power described in step (1) is 500-600W, and ultrasonic frequency is 25-30KHz.
3. the preparation method of a kind of silicon bath land reform iron oxide black particle according to claim 1, is characterized in that, the rotating speed of the tablets press described in step (2) is 1500-2000rpm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310194565.3A CN103305031B (en) | 2013-05-23 | 2013-05-23 | Preparation method of precipitated white graphite/graphite iron oxide black granule |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310194565.3A CN103305031B (en) | 2013-05-23 | 2013-05-23 | Preparation method of precipitated white graphite/graphite iron oxide black granule |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103305031A CN103305031A (en) | 2013-09-18 |
| CN103305031B true CN103305031B (en) | 2014-07-16 |
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| CN201310194565.3A Active CN103305031B (en) | 2013-05-23 | 2013-05-23 | Preparation method of precipitated white graphite/graphite iron oxide black granule |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104031423B (en) * | 2014-04-24 | 2015-12-02 | 安徽陵阳新材料有限公司 | A kind of preparation method of high temperature resistant cladded type iron oxide black |
| CN105131653A (en) * | 2015-07-25 | 2015-12-09 | 铜陵瑞莱科技有限公司 | Iron oxide black pigment used for printing ink and preparation method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7347893B2 (en) * | 2006-06-02 | 2008-03-25 | Iop Specialists Sdn. Bhd. | Iron oxide pigments from mill scale |
| CN101691456A (en) * | 2009-10-20 | 2010-04-07 | 杭州萧湘颜料化工有限公司 | Iron oxide black granular pigment and preparation method thereof |
| CN102604437B (en) * | 2012-02-21 | 2014-04-16 | 升华集团德清华源颜料有限公司 | Intermediate temperature-resistant coated iron oxide black and preparation method thereof |
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2013
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