CN102502857A - Formula of high temperature-resistant magnesium ferrite orange-yellow pigment and preparation process thereof - Google Patents
Formula of high temperature-resistant magnesium ferrite orange-yellow pigment and preparation process thereof Download PDFInfo
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- CN102502857A CN102502857A CN2011103214776A CN201110321477A CN102502857A CN 102502857 A CN102502857 A CN 102502857A CN 2011103214776 A CN2011103214776 A CN 2011103214776A CN 201110321477 A CN201110321477 A CN 201110321477A CN 102502857 A CN102502857 A CN 102502857A
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- orange
- high temperature
- yellow
- magnesium ferrite
- resistant magnesium
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Abstract
The invention discloses a preparation process of an orange-yellow high temperature-resistant magnesium ferrite pigment, which comprises the following steps of: mixing a certain amount of iron oxide yellow filter cakes with industrial activity magnesium oxide and simultaneously adding an assistant playing dispersion and anti-sintering roles to carry out batching, pulping, high-speed dispersion, suction filtration, drying, roasting reaction and crushing to obtain the orange-yellow high temperature-resistant magnesium ferrite pigment. The preparation process has the advantage that the needle iron yellow fresh filter cakes with good reaction activity and grain sizes controlled within a certain range and a certain specification of active magnesium oxides produced by the company are preferably selected to be pulped and mixed by a wet process. The invention has the beneficial effects that the production process flow can be greatly simplified; the preparation process is easy in operation, high in yield and low in cost; and the prepared product is pure in color and is good in dispersibility.
Description
Technical field
The present invention relates to the prescription and the preparation technology of the orange-yellow pigment of a kind of high temperature resistant magnesium ferrite; Utilize yellow oxide of iron filter cake and technical grade activated magnesia; Control both formula rates; Add the auxiliary agent that some play dispersion and anti-nodulizing simultaneously,, finally can obtain the refractory metal mixed phase pigment of orange tone then through the roasting reaction.
Background technology
Common yellow oxide of iron claims that again iron carbonyl is called for short iron oxide yellow, is the metastable basic oxide of a kind of chemical property, and chemical molecular formula is Fe
2O
3H
2O or FeOOH are the yellow powder shape.Color and luster has distinct pure ochre yellow, and has from lemon yellow to orange a series of coloured light.Have good pigment characteristics, all very high, nontoxic like tinting strength, opacifying power, photostabilization is good, alkaline-resisting.Can be widely used in industries such as building materials, coating, paint, plastics, rubber, electronic material, tobacco, makeup.But the shortcoming of common yellow oxide of iron is a poor heat stability, is heated to 150 ~ 200 ℃ and begins dehydration, when temperature rises to 270 ~ 300 ℃ of dehydrations rapidly and become iron oxide red (Fe
2O
3).
Summary of the invention
The objective of the invention is in order to solve the problem of present common ferric oxide yellow pigment poor heat stability.A kind of magnesium ferrite pigment of high temperature resistant orange tone is provided, makes this pigment can be applicable to occasion the temperature requirements at the higher level.
Technical solution of the present invention:
1, the preparation technology of the orange-yellow pigment of high temperature resistant magnesium ferrite is following: utilize yellow oxide of iron filter cake and technical grade activated magnesia; Control both formula rates; Add the auxiliary agent that some play dispersion and anti-nodulizing simultaneously; Through making beating, high speed dispersion, wait to reach requirement after, through suction strainer, oven dry, roasting reaction, pulverize, finally can obtain the high temperature resistant magnesium ferrite pigment of orange tone.
The roasting reaction equation is:
2, the prescription of the orange-yellow pigment of high temperature resistant magnesium ferrite is following:
Preparing method of the present invention adds the water making beating with iron oxide yellow filter cake and a certain proportion of activated magnesia earlier; Control Fe/Mn mol ratio is between 1.8-2.2; The tap water making beating that adds 60%-70% weight ratio; And then added Sodium hexametaphosphate 99 auxiliary agent 1.8 gram of dissemination, and auxiliary agent water glass 0.6 gram of anti-nodulizing, mixing temperature carries out between 0-50 ℃.Batching finishes, and pulls an oar, mixes with high speed dispersion (4500 rev/mins), and the time is controlled at and got final product in 15 minutes.Then through suction strainer, oven dry,, the roasting reaction, pulverize, finally can obtain the high temperature resistant magnesium ferrite pigment of orange tone.
The invention has the advantages that: orange-yellow pigment (molecular formula: MgFe that magnesium ferrite is high temperature resistant
2O
4) be a kind of nontoxic, heat-resisting (nondiscoloration under 800oC high temperature), fast light, weather-proof, dispersing property is good, and has the pigment of good tone, can be widely used in fields such as building materials, plastics, rubber, papermaking, coating and pottery.
The preferred our company of the present invention produces has sound response activity and particle diameter and controls within the specific limits the fresh filter cake of aciculiform iron oxide yellow and pull an oar with the activated magnesia wet method of certain specification and mix.
Present method can be simplified the technological process of production, easy to operate greatly, and output is high, cost is low, and prepared product shade is pure, good dispersivity.
Embodiment:
Embodiment 1:
Take by weighing 40 gram technical grade activated magnesias and 160 gram iron oxide yellow filter cakes (doing meter) are positioned in the 1200ml stainless steel cylinder (Φ 100mm*154mm); And then add 0.6 gram water glass auxiliary agent; Thin up is to about 600ml; At room temperature, with high speed dispersion (disperse leaf dish diameter of phi 50mm, 4500 rev/mins) pull an oar, mixing time is controlled at and got final product in 15 minutes.Then through suction strainer, oven dry, roasting reaction (900 ℃, 30 minutes), pulverize, finally can obtain the high temperature resistant magnesium ferrite pigment of orange tone.
Below be the end-result of the related process gained of the embodiment 1-9 that implements by above-mentioned steps:
Attach: table 1
Table 1 is the measured value of this pigment pairing L, a, b colorimetrie system under different ingredients and maturing temperature condition.See that from determination data this pigment has good color tone and form and aspect.
The preparation method of embodiment 2-9 is with embodiment 1, and the result lists in table 1 simultaneously, and these pigment have good color tone and form and aspect equally.
Claims (3)
1. the preparation technology of the orange-yellow pigment of high temperature resistant magnesium ferrite; The yellow oxide of iron filter cake is mixed with the technical grade activated magnesia, added simultaneously and disperseed and the auxiliary agent of anti-nodulizing is prepared burden, orange tone is reacted, pulverizes, obtains in making beating, high speed dispersion, suction strainer, oven dry, roasting high temperature resistant magnesium ferrite pigment; It is characterized in that: said batching: with iron oxide yellow filter cake and activated magnesia in the ratio of Fe/Mn mol ratio between 1.8-2.2; The tap water making beating that adds 60%-70% weight ratio; And then added and disperse and the auxiliary agent of anti-nodulizing mixes, mixing temperature is between 0-50 ℃; Said making beating: carry out high speed dispersion, making beating, mixing with 4500 rev/mins speed, the time was controlled at 15 minutes.
2. the prescription and the preparation technology of the orange-yellow pigment of a kind of high temperature resistant magnesium ferrite according to claim 1, it is characterized in that: said dispersive auxiliary agent is Sodium hexametaphosphate 99, and the amount of its adding is 0.002-0.005 mole.
3. the prescription and the preparation technology of the orange-yellow pigment of a kind of high temperature resistant magnesium ferrite according to claim 1 is characterized in that: said anti-agglomerating auxiliary agent is a water glass, and the amount of its adding is 0.001-0.003 mole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103214776A CN102502857A (en) | 2011-10-21 | 2011-10-21 | Formula of high temperature-resistant magnesium ferrite orange-yellow pigment and preparation process thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103214776A CN102502857A (en) | 2011-10-21 | 2011-10-21 | Formula of high temperature-resistant magnesium ferrite orange-yellow pigment and preparation process thereof |
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|---|---|
| CN102502857A true CN102502857A (en) | 2012-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011103214776A Pending CN102502857A (en) | 2011-10-21 | 2011-10-21 | Formula of high temperature-resistant magnesium ferrite orange-yellow pigment and preparation process thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105542513A (en) * | 2016-01-28 | 2016-05-04 | 浙江奇彩环境科技股份有限公司 | Preparation method of temperature-resistant iron oxide red for plastics |
| CN106848277A (en) * | 2017-01-22 | 2017-06-13 | 曲阜师范大学 | A kind of magnesium iron oxygen/carbon composite and preparation method thereof |
| CN114180639A (en) * | 2021-12-08 | 2022-03-15 | 程冲 | Method for preparing yellow inorganic nano oxide pigment by steam drying and crushing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB651347A (en) * | 1947-08-29 | 1951-03-14 | Columbian Carbon | Improvements in preparation of magnesium ferrite pigment |
| US3960583A (en) * | 1974-05-02 | 1976-06-01 | Philadelphia Quartz Company | Method of preparing modified hollow, largely spherical particles by spray drying |
| CN101691455A (en) * | 2009-10-20 | 2010-04-07 | 杭州萧湘颜料化工有限公司 | Iron oxide yellow granular pigment and manufacturing method thereof |
-
2011
- 2011-10-21 CN CN2011103214776A patent/CN102502857A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB651347A (en) * | 1947-08-29 | 1951-03-14 | Columbian Carbon | Improvements in preparation of magnesium ferrite pigment |
| US3960583A (en) * | 1974-05-02 | 1976-06-01 | Philadelphia Quartz Company | Method of preparing modified hollow, largely spherical particles by spray drying |
| CN101691455A (en) * | 2009-10-20 | 2010-04-07 | 杭州萧湘颜料化工有限公司 | Iron oxide yellow granular pigment and manufacturing method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 都有为等: "《磁记录材料》", 31 December 1992, 电子工业出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105542513A (en) * | 2016-01-28 | 2016-05-04 | 浙江奇彩环境科技股份有限公司 | Preparation method of temperature-resistant iron oxide red for plastics |
| CN105542513B (en) * | 2016-01-28 | 2017-12-12 | 浙江奇彩环境科技股份有限公司 | A kind of preparation method of plastics heatproof iron oxide red |
| CN106848277A (en) * | 2017-01-22 | 2017-06-13 | 曲阜师范大学 | A kind of magnesium iron oxygen/carbon composite and preparation method thereof |
| CN114180639A (en) * | 2021-12-08 | 2022-03-15 | 程冲 | Method for preparing yellow inorganic nano oxide pigment by steam drying and crushing |
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Application publication date: 20120620 |