CN104194411A - Method for preparing easily dispersed iron oxide yellow by virtue of surface modification of iron oxide yellow by ammonia process - Google Patents
Method for preparing easily dispersed iron oxide yellow by virtue of surface modification of iron oxide yellow by ammonia process Download PDFInfo
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- CN104194411A CN104194411A CN201410440986.4A CN201410440986A CN104194411A CN 104194411 A CN104194411 A CN 104194411A CN 201410440986 A CN201410440986 A CN 201410440986A CN 104194411 A CN104194411 A CN 104194411A
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- iron oxide
- oxide yellow
- ammonia process
- surface modification
- huang
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Abstract
The invention discloses a method for preparing easily dispersed iron oxide yellow by virtue of surface modification of iron oxide yellow by an ammonia process. The method comprises the following steps: by taking water as a medium, pre-treating an iron oxide yellow filter cake by the ammonia process in form of stirring and pulping to obtain slurry with uniformly dispersed aqueous phase; then, adding a super dispersant emulsion; forming a hydrogen bond by means of hydroxyl of iron oxide yellow and an anchoring group of amino of the super dispersant under a certain pH condition; and wrapping the iron oxide yellow by means of a solvated chain of the super dispersant so as to carry out surface modification on the iron oxide yellow to obtain dispersed particles of iron oxide yellow. In an application system, the hydrogen bond by means of hydroxyl of iron oxide yellow and the anchoring group of amino of the super dispersant is formed for firm combination while the solvated chain of the super dispersant is dispersed in an organic medium to have the stereo-hindrance effect, thereby achieving a good easily dispersed effect. In the modification process, the optimal use level of the super dispersant is adjusted, so that the easily dispersed iron oxide yellow powder which is better in compatibility with intermediate and low polarity organic media can be obtained.
Description
Technical field
The invention belongs to mineral dye industry process for modifying surface field, be specifically related to a kind of method that ammonia process iron oxide yellow surface modification is prepared easy dispersing iron oxide Huang.
Background technology
Iron oxide yellow claims again hydrous iron oxide, be called for short iron oxide yellow, chemical formula is Fe00H, from molecular composition and molecular structure, can find out, iron oxide yellow surface has strong polar functional group, can mix preferably, and in Semi-polarity and low polar solvent, need surface modification according to similar compatibility principle in intensive polar solvent, reduce surface of pigments polarity, to improve intermiscibility and the dispersion force of pigment in Semi-polarity and low polar solvent.
At present, the yellow manufacturing enterprise of Domestic Ferric Oxide product mainly accounts for main body with conventional oxidation iron oxide yellow primary product, and the application service of design, research and development and product technology to high-grade product lacks due attention, the formulation classification major part of iron oxide yellow is taking universal as main, and easy dispersing iron oxide Huang on market, mainly with universal comparatively general of physical method processing (mechanical grinding), the yellow domestic report that there is not yet of easy dispersing iron oxide of chemically processing.Therefore, the capable yellow industry integral product technology content of ferric oxide is not high, added value is low, and these factors have affected the sound development of iron oxide yellow industry.
Along with the progress of pigment production science and technology, the application of ferric oxide yellow pigment is more and more extensive, and the classification of product is more and more thinner, and functional requirement is also more and more higher.User has had particular requirement to the performance of specific industry sole pigment, has also proposed more pigment formulation, better pigment property to supplier.In recent years, ferric oxide yellow pigment is widely applied in high-grade paint, ink, according to the products characteristics of high-grade paint, ink, require the product performance of ferric oxide yellow pigment to easy dispersion and mill base future development, particularly can have higher requirement to the easily disperse of ferric oxide yellow pigment, to meet the requirement of high-grade paint, ink and mill base.
Summary of the invention
In order to overcome above-mentioned deficiency of the prior art, the invention provides a kind of method that ammonia process iron oxide yellow surface modification is prepared easy dispersing iron oxide Huang, to meet the easy dispersion requirement of paint field.The present invention is taking water as medium, adopt the form of stirring to pulp to carry out pre-treatment to ammonia process iron oxide yellow filter cake, obtain the finely dispersed slurries of water, add again super dispersion agent emulsion, under the condition of certain pH, utilize the hydroxyl of iron oxide yellow and the anchor formula group of super dispersion agent amido to form hydrogen bond, the solvent chain of super dispersion agent is coated iron oxide yellow, make iron oxide yellow obtain surface modification, obtain the yellow dispersed particle of easy dispersing iron oxide.In application system, the anchor formula group of the hydroxyl of iron oxide yellow and super dispersion agent amido forms hydrogen bond combination firmly, and the solute chain of super dispersion agent is dispersed in the middle of organic medium, has played the effect of resistance position, space, has reached good easy dispersion effect.In the process of modification, adjust the optimum amount of super dispersion agent, obtain the easy dispersing iron oxide bloom body good with organic medium consistency.
The object of the present invention is achieved like this:
A kind of ammonia process iron oxide yellow surface modification is prepared the method for easy dispersing iron oxide Huang, its concrete grammar is: by ammonia process iron oxide yellow filter cake, size mixing to being uniformly dispersed with tap water, with organic acid regulate ore pulp be slightly acidic, under 25-85 DEG C of temperature condition, add the super dispersion agent emulsion of iron oxide yellow dry weight 5-15%, then regulate pH values of pulp=1-6 with organic acid, stir insulation and after 1-6 hour, filter, wash, be dried, obtain the said easy dispersing iron oxide Huang of the present invention;
Ammonia process iron oxide yellow 313 types that the said iron oxide yellow of the present invention (alpha-feooh) is produced for Henan Zhongyuan Gold Refinery Co., Ltd.;
Described organic acid is formic acid or acetic acid, or the mixing acid of formic acid and acetic acid;
Said super dispersion agent emulsion is: 1000g WinBos New Materials Co., Ltd. trade mark is after the super dispersion agent of WinSperse 3010A adds 200g acetic acid to dissolve, and joins temperature and be churning in the 20L water of 45 DEG C;
The easy dispersing iron oxide Huang of described surface modification, its method of inspection of easily disperseing is: with reference to National Standard of the People's Republic of China GB 9287-88 (comparison of pigment ease of dispersion, vibratory drilling method).
actively beneficial effect:easy dispersing iron oxide Huang provided by the present invention is to adopt ammonia process ferric oxide yellow pigment to carry out surface modification treatment, thereby change the surface polarity of ferric oxide yellow pigment, make granules of pigments even, full, secondary agglomeration declines, the size distribution of particle narrows, the mobility of particle improves, in application system, dispersiveness is improved, to substantially improve the application performance of pigment, reach the technical requirements of easy dispersion, also improve pigment vividness, glossiness simultaneously, reduced oil-absorption(number), can be widely used in organic solvent paint field.
Embodiment
Below in conjunction with specific embodiment, the present invention is described further:
A kind of ammonia process iron oxide yellow surface modification is prepared the method for easy dispersing iron oxide Huang, its concrete grammar is: by ammonia process iron oxide yellow filter cake, size mixing to being uniformly dispersed with tap water, with organic acid regulate ore pulp be slightly acidic, under 25-85 DEG C of temperature condition, add the super dispersion agent emulsion of iron oxide yellow dry weight 5-15%, then regulate pH values of pulp=1-6 with organic acid, stir insulation and after 1-6 hour, filter, wash, be dried, obtain the said easy dispersing iron oxide Huang of the present invention;
Ammonia process iron oxide yellow 313 types that the said iron oxide yellow of the present invention (alpha-feooh) is produced for Henan Zhongyuan Gold Refinery Co., Ltd.;
Described organic acid is formic acid or acetic acid, or the mixing acid of formic acid and acetic acid;
Said super dispersion agent emulsion is: 1000g WinBos New Materials Co., Ltd. trade mark is after the super dispersion agent of WinSperse 3010A adds 200g acetic acid to dissolve, and joins temperature and be churning in the 20L water of 45 DEG C.
The easy dispersing iron oxide Huang of described surface modification, its method of inspection of easily disperseing is: with reference to National Standard of the People's Republic of China GB 9287-88 (comparison of pigment ease of dispersion, vibratory drilling method).
embodiment 1
By ammonia process iron oxide yellow filter cake, adding tap water to stir sizes mixing to being uniformly dispersed, with formic acid regulate ore pulp be slightly acidic, under 25 DEG C of temperature condition, add the super dispersion agent emulsion of iron oxide yellow dry weight 10%, regulate pH values of pulp=6 with formic acid again, stir insulation and after 1 hour, filter, wash, be dried, obtain easy dispersing iron oxide Huang.
embodiment 2
By ammonia process iron oxide yellow filter cake, adding tap water to stir sizes mixing to being uniformly dispersed, with acetic acid regulate ore pulp be slightly acidic, under 40 DEG C of temperature condition, add the super dispersion agent emulsion of iron oxide yellow dry weight 15%, regulate pH values of pulp=2 with formic acid again, stir insulation and after 6 hours, filter, wash, be dried, obtain easy dispersing iron oxide Huang.
embodiment 3
By ammonia process iron oxide yellow filter cake, adding appropriate tap water to stir sizes mixing to being uniformly dispersed, with formic acid regulate ore pulp be slightly acidic, under 85 DEG C of temperature condition, add the super dispersion agent emulsion of iron oxide yellow dry weight 5%, regulate pH values of pulp=1 with acetic acid again, stir insulation and after 4 hours, filter, wash, be dried, obtain easy dispersing iron oxide Huang.
embodiment 4
By ammonia process iron oxide yellow filter cake, adding appropriate tap water to stir sizes mixing to being uniformly dispersed, with acetic acid regulate ore pulp be slightly acidic, under 60 DEG C of temperature condition, add the super dispersion agent emulsion of iron oxide yellow dry weight 10%, regulate pH values of pulp=4 with acetic acid again, stir insulation and after 2 hours, filter, wash, be dried, obtain easy dispersing iron oxide Huang.
The easily yellow detection method of dispersing iron oxide
Weigh up granulated glass sphere 50g, put into 125mL vial, weigh up Synolac 20%(m/m) solution 70g(is by 20 massfraction 75%(m/m) solution and No. 200 solvent oils of 55 massfractions are made into) be added in bottle, all make pigment wetting being added on yellow tune of the easy dispersing iron oxide of 15g, sealing is vibrated quick worker, within every 5 minutes, measure fineness at Hegman grind gage, its result is as table 1.
Implement the 1-4 yellow dispersion results of easy dispersing iron oxide (table 1)
| Time of vibration | 5 minutes | 10 minutes | 15 minutes | 20 minutes | 25 minutes | 30 minutes |
| Example 1(fineness) | 5（μm) | 5（μm) | 0（μm) | 0（μm) | 0（μm) | 0（μm) |
| Example 2(fineness) | 5（μm) | 0（μm) | 0（μm) | 0（μm) | 0（μm) | 0（μm) |
| Example 3(fineness) | 35（μm) | 20（μm) | 10（μm) | 0（μm) | 0（μm) | 0（μm) |
| Example 4(fineness) | 5（μm) | 5（μm) | 0（μm) | 0（μm) | 0（μm) | 0（μm) |
Fineness value and cleanliness value have all reached easy dispersion effect as can be seen from the above table.Oil-absorption(number) reaches below 23% simultaneously, and glossiness, vividness are all improved, and is the yellow formulation of reasonable easy dispersing iron oxide.
Easy dispersing iron oxide Huang provided by the present invention is to adopt ammonia process ferric oxide yellow pigment to carry out surface modification treatment, thereby change the surface polarity of ferric oxide yellow pigment, make granules of pigments even, saturated, secondary agglomeration declines, the size distribution of particle narrows, the mobility of particle improves, dispersiveness in application system is improved, to substantially improve the application performance of pigment, reach the technical requirements of easy dispersion, also improved pigment vividness simultaneously, glossiness, reduce oil-absorption(number), can be widely used in organic solvent paint field.
Above case study on implementation is only for illustrating the preferred embodiment of the present invention; but the present invention is not limited to above-mentioned embodiment; in the ken possessing at described field those of ordinary skill; any amendment of doing within the spirit and principles in the present invention, be equal to and substitute and improvement etc., all should be considered as the application's protection domain.
Claims (5)
1. an ammonia process iron oxide yellow surface modification is prepared the method for easy dispersing iron oxide Huang, it is characterized in that: its concrete grammar is: by ammonia process iron oxide yellow filter cake, size mixing to being uniformly dispersed with tap water, with organic acid regulate ore pulp be slightly acidic, under 25-85 DEG C of temperature condition, add the super dispersion agent emulsion of iron oxide yellow dry weight 5-15%, then regulate pH values of pulp=1-6 with organic acid, stir insulation and after 1-6 hour, filter, wash, be dried, obtain the said easy dispersing iron oxide Huang of the present invention.
2. a kind of ammonia process iron oxide yellow surface modification according to claim 1 is prepared the method for easy dispersing iron oxide Huang, it is characterized in that: described iron oxide yellow is ammonia process iron oxide yellow 313 types that Henan Zhongyuan Gold Refinery Co., Ltd. produces.
3. a kind of ammonia process iron oxide yellow surface modification according to claim 1 is prepared the method for easy dispersing iron oxide Huang, it is characterized in that: described organic acid is formic acid or acetic acid, or the mixing acid of formic acid and acetic acid.
4. a kind of ammonia process iron oxide yellow surface modification according to claim 1 is prepared the method for easy dispersing iron oxide Huang, it is characterized in that: said super dispersion agent emulsion is that 1000g WinBos New Materials Co., Ltd. trade mark is after the super dispersion agent of WinSperse 3010A adds 200g acetic acid to dissolve, join temperature and be churning in the 20L water of 45 DEG C.
5. a kind of ammonia process iron oxide yellow surface modification as claimed in claim 1 is prepared the method for easy dispersing iron oxide Huang, the easy dispersing iron oxide Huang of prepared surface modification, its method of inspection of easily disperseing is: with reference to National Standard of the People's Republic of China GB 9287-88 (the comparison vibratory drilling method of pigment ease of dispersion).
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| CN201410440986.4A CN104194411A (en) | 2014-09-02 | 2014-09-02 | Method for preparing easily dispersed iron oxide yellow by virtue of surface modification of iron oxide yellow by ammonia process |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5757755A (en) * | 1980-09-26 | 1982-04-07 | Toyo Soda Mfg Co Ltd | Improvement on pigment characteristics of yellow iron oxide |
| US6139618A (en) * | 1998-08-28 | 2000-10-31 | Toda Kogyo Corporation | Fine yellow composite iron oxide hydroxide pigment, and paint or resin composition using the same |
| CN1530412A (en) * | 2003-03-17 | 2004-09-22 | 深圳市海川实业股份有限公司 | Aqueous yelow paste of iron oxide |
| CN1884393A (en) * | 2005-06-24 | 2006-12-27 | 上海华明高技术（集团）有限公司 | Transparent ferric oxide easily disperse in organic medium and its production method |
| CN101319099A (en) * | 2008-04-07 | 2008-12-10 | 王建民 | Method for preparing transparent iron oxide pigment with microemulsion method |
-
2014
- 2014-09-02 CN CN201410440986.4A patent/CN104194411A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5757755A (en) * | 1980-09-26 | 1982-04-07 | Toyo Soda Mfg Co Ltd | Improvement on pigment characteristics of yellow iron oxide |
| US6139618A (en) * | 1998-08-28 | 2000-10-31 | Toda Kogyo Corporation | Fine yellow composite iron oxide hydroxide pigment, and paint or resin composition using the same |
| CN1530412A (en) * | 2003-03-17 | 2004-09-22 | 深圳市海川实业股份有限公司 | Aqueous yelow paste of iron oxide |
| CN1884393A (en) * | 2005-06-24 | 2006-12-27 | 上海华明高技术（集团）有限公司 | Transparent ferric oxide easily disperse in organic medium and its production method |
| CN101319099A (en) * | 2008-04-07 | 2008-12-10 | 王建民 | Method for preparing transparent iron oxide pigment with microemulsion method |
Non-Patent Citations (1)
| Title |
|---|
| 李凤生: "《超细粉体技术》", 31 July 2000, 国防工业出版社 * |
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Application publication date: 20141210 |