CN104386761A - Preparation method of high-tinting-strength iron oxide black paint - Google Patents
Preparation method of high-tinting-strength iron oxide black paint Download PDFInfo
- Publication number
- CN104386761A CN104386761A CN201410636948.6A CN201410636948A CN104386761A CN 104386761 A CN104386761 A CN 104386761A CN 201410636948 A CN201410636948 A CN 201410636948A CN 104386761 A CN104386761 A CN 104386761A
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- China
- Prior art keywords
- iron oxide
- preparation
- tinting strength
- oxide pigment
- black iron
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Abstract
The invention discloses a preparation method of a high-tinting-strength iron oxide black paint. The preparation method comprises the following steps: dissolving ferrous sulfate in water, heating to the temperature of 80 to 90 DEG C, adding alkali to neutralize the solution until the pH is equal to about 7, introducing air for oxidization, adding an additive citric acid, measuring the ratio of Fe<3+> to Fe<2+>, regulating the pH value, shutting down a cell, filtering, washing by water, drying and grinding to obtain a Fe3O4 finished product. By taking the citric acid as the additive, the preparation method of the high-tinting-strength iron oxide black paint can be used for preparing an iron oxide black paint which is small in particle size, narrow in particle size distribution and good in tinting strength.
Description
Technical field
The invention belongs to pigment technology field, relate to a kind of preparation method of High Tinting Strength Black Iron Oxide Pigment.
Background technology
Iron oxide black is a kind of multiduty tinting pigment, is widely used in the fields such as building materials, coating, plastics, rubber.Along with the development of China's economy, the performance of market to iron oxide black pigment proposes more and more higher requirement, and its purposes is constantly widened.Domestic and international many scientific workers have done many research to iron oxide black pigment, and great majority just study formation condition to the impact of iron black performance, and seldom report the impact of additive on iron black performance.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of method being prepared High Tinting Strength Black Iron Oxide Pigment by additive.
For achieving the above object, the invention provides following technical scheme:
A preparation method for High Tinting Strength Black Iron Oxide Pigment, comprises the steps:
Be dissolved in the water by ferrous sulfate, be warming up to 80 ~ 90 DEG C, add alkali and be neutralized to about pH=7, blowing air is oxidized, and adds additive citric acid, measures Fe
3+/ Fe
2+ratio, adjusted to ph, stops groove, filtration, washing, oven dry, grinds, obtains Fe
3o
4finished product.
Preferably, the concentration of described ferrous sulfate is 0.5 ~ 1mol/L.
Preferably, ferrous sulfate is dissolved in the water, is warming up to 85 DEG C.
Preferably, described alkali is sodium hydroxide or potassium hydroxide.
Preferably, described air velocity is 0.1 ~ 0.2m
3/ h.
Preferably, described Fe
3+/ Fe
2+ratio is 1.5 ~ 2.0.
Preferably, before stopping groove, adjusted to ph is 5 ~ 6.
The preparation method of High Tinting Strength Black Iron Oxide Pigment of the present invention, citric acid makes additive, can obtain the black iron oxide pigment that particle diameter is little, narrow diameter distribution, tinting strength are good.
Embodiment
Be described in detail to the technical scheme in the embodiment of the present invention below, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belongs to the scope of protection of the invention.
Embodiment 1
Be dissolved in the water by ferrous sulfate, concentration is 0.5mol/L, is warming up to 80 DEG C, and hydro-oxidation sodium is neutralized to about pH=7, and blowing air is oxidized, and flow velocity is 0.1m
3/ h, adds additive citric acid, measures Fe
3+/ Fe
2+ratio=1.5, adjusted to ph=5, stop groove, filtration, washing, oven dry, grind, obtain Fe
3o
4finished product.
Embodiment 2
Be dissolved in the water by ferrous sulfate, concentration is 1mol/L, is warming up to 90 DEG C, and hydro-oxidation potassium is neutralized to about pH=7, and blowing air is oxidized, and flow velocity is 0.2m
3/ h, adds additive citric acid, measures Fe
3+/ Fe
2+ratio=2.0, adjusted to ph=6, stop groove, filtration, washing, oven dry, grind, obtain Fe
3o
4finished product.
Embodiment 3
Be dissolved in the water by ferrous sulfate, concentration is 0.8mol/L, is warming up to 85 DEG C, and hydro-oxidation sodium is neutralized to about pH=7, and blowing air is oxidized, and flow velocity is 0.15m
3/ h, adds additive citric acid, measures Fe
3+/ Fe
2+ratio=1.8, adjusted to ph=6, stop groove, filtration, washing, oven dry, grind, obtain Fe
3o
4finished product.
In those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.
In addition, be to be understood that, although this specification sheets is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of specification sheets is only for clarity sake, those skilled in the art should by specification sheets integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (7)
1. a preparation method for High Tinting Strength Black Iron Oxide Pigment, is characterized in that, comprises the steps:
Be dissolved in the water by ferrous sulfate, be warming up to 80 ~ 90 DEG C, add alkali and be neutralized to about pH=7, blowing air is oxidized, and adds additive citric acid, measures Fe3+/Fe2+ ratio, adjusted to ph, stops groove, filtration, washing, oven dry, grinds, obtains Fe3O4 finished product.
2. the preparation method of High Tinting Strength Black Iron Oxide Pigment according to claim 1, is characterized in that: the concentration of described ferrous sulfate is 0.5 ~ 1mol/L.
3. the preparation method of High Tinting Strength Black Iron Oxide Pigment according to claim 1, is characterized in that: be dissolved in the water by ferrous sulfate, is warming up to 85 DEG C.
4. the preparation method of High Tinting Strength Black Iron Oxide Pigment according to claim 1, is characterized in that: described alkali is sodium hydroxide or potassium hydroxide.
5. the preparation method of High Tinting Strength Black Iron Oxide Pigment according to claim 1, is characterized in that: described air velocity is 0.1 ~ 0.2m
3/ h.
6. the preparation method of High Tinting Strength Black Iron Oxide Pigment according to claim 1, is characterized in that: described Fe
3+/ Fe
2+ratio is 1.5 ~ 2.0.
7. the preparation method of High Tinting Strength Black Iron Oxide Pigment according to claim 1, is characterized in that: before stopping groove, adjusted to ph is 5 ~ 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410636948.6A CN104386761A (en) | 2014-11-13 | 2014-11-13 | Preparation method of high-tinting-strength iron oxide black paint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410636948.6A CN104386761A (en) | 2014-11-13 | 2014-11-13 | Preparation method of high-tinting-strength iron oxide black paint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104386761A true CN104386761A (en) | 2015-03-04 |
Family
ID=52604743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410636948.6A Pending CN104386761A (en) | 2014-11-13 | 2014-11-13 | Preparation method of high-tinting-strength iron oxide black paint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104386761A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104876357A (en) * | 2015-04-23 | 2015-09-02 | 天津大学 | Method for preparing nanoscale ferroferric oxide from steel pickling wastewater |
| CN107986337A (en) * | 2017-11-03 | 2018-05-04 | 浙江华源颜料股份有限公司 | A kind of easily scattered high coloring power iron oxide black and preparation method thereof |
| CN108003658A (en) * | 2017-11-03 | 2018-05-08 | 浙江华源颜料股份有限公司 | A kind of easily scattered high coloring power iron oxide black |
| CN111573740A (en) * | 2020-07-02 | 2020-08-25 | 正太新材料科技有限责任公司 | Preparation method of iron oxide black |
| CN112194189A (en) * | 2020-10-30 | 2021-01-08 | 焦作佰利联合颜料有限公司 | Process for preparing iron-based pigment from sulfur-chlorine coupling waste liquid |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1709985A (en) * | 2005-06-08 | 2005-12-21 | 刘世琦 | Method for producing iron oxide black |
| US20080299047A1 (en) * | 2003-07-31 | 2008-12-04 | National Cheng Kung University | Method for preparation of water-soluble and dispersed iron oxide nanoparticles and application thereof |
-
2014
- 2014-11-13 CN CN201410636948.6A patent/CN104386761A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080299047A1 (en) * | 2003-07-31 | 2008-12-04 | National Cheng Kung University | Method for preparation of water-soluble and dispersed iron oxide nanoparticles and application thereof |
| CN1709985A (en) * | 2005-06-08 | 2005-12-21 | 刘世琦 | Method for producing iron oxide black |
Non-Patent Citations (1)
| Title |
|---|
| 杨喜云等: ""高着色力氧化铁黑颜料的制备"", 《涂料工业》, vol. 33, no. 7, 31 July 2003 (2003-07-31) * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104876357A (en) * | 2015-04-23 | 2015-09-02 | 天津大学 | Method for preparing nanoscale ferroferric oxide from steel pickling wastewater |
| CN107986337A (en) * | 2017-11-03 | 2018-05-04 | 浙江华源颜料股份有限公司 | A kind of easily scattered high coloring power iron oxide black and preparation method thereof |
| CN108003658A (en) * | 2017-11-03 | 2018-05-08 | 浙江华源颜料股份有限公司 | A kind of easily scattered high coloring power iron oxide black |
| CN107986337B (en) * | 2017-11-03 | 2020-05-05 | 浙江华源颜料股份有限公司 | Easily-dispersible high-tinting-strength iron oxide black and preparation method thereof |
| CN111573740A (en) * | 2020-07-02 | 2020-08-25 | 正太新材料科技有限责任公司 | Preparation method of iron oxide black |
| CN111573740B (en) * | 2020-07-02 | 2022-08-23 | 正太新材料科技有限责任公司 | Preparation method of iron oxide black |
| CN112194189A (en) * | 2020-10-30 | 2021-01-08 | 焦作佰利联合颜料有限公司 | Process for preparing iron-based pigment from sulfur-chlorine coupling waste liquid |
| CN112194189B (en) * | 2020-10-30 | 2022-09-06 | 焦作佰利联合颜料有限公司 | Process for preparing iron-based pigment from sulfur-chlorine coupling waste liquid |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150304 |