CN106497164A - A kind of preparation method of silicon steel with biphosphate aluminium paint - Google Patents
A kind of preparation method of silicon steel with biphosphate aluminium paint Download PDFInfo
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- CN106497164A CN106497164A CN201611006828.3A CN201611006828A CN106497164A CN 106497164 A CN106497164 A CN 106497164A CN 201611006828 A CN201611006828 A CN 201611006828A CN 106497164 A CN106497164 A CN 106497164A
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- silicon steel
- aluminium
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/26—Phosphates
- C01B25/36—Aluminium phosphates
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Chemical Treatment Of Metals (AREA)
- Paints Or Removers (AREA)
Abstract
The present invention relates to a kind of preparation method of silicon steel with biphosphate aluminium paint, the preparation method of the silicon steel biphosphate aluminium paint includes：By the aluminium hydroxide of 100 weight portions with more than 50 DEG C of hot wash；The phosphoric acid of 50～65 weight portions is added in reactor, 65 DEG C～75 DEG C are heated to, aluminium hydroxide is then added while stirring；After aluminium hydroxide is all added, stop stirring, after 20～40 minutes, reaction terminates, and is cooled to 45 DEG C～55 DEG C, filter；Detection and analysis, adjusts pH value.The aluminium dihydrogen phosphate of present invention production is impure few, easily compatible with other components in silicon steel coating, improves the stability of insulating coating solution；And free phosphoric acid is reduced in aluminium dihydrogen phosphate prepared by the present invention, makes coating surface crack minimizing, be conducive to insulating properties and the adhesive force for improving coating.
Description
Technical field
A kind of a kind of the present invention relates to preparation method of chemical substance, more particularly to silicon steel system of biphosphate aluminium paint
Preparation Method.
Background technology
Aluminium dihydrogen phosphate has played important work in each department of national economy as a phosphatic important component part
With.As the construction featuress and physicochemical characteristicss of aluminium dihydrogen phosphate become the coating of high-temp antioxidizing field great potential
Material, is especially widely used in silicon-steel coating field, becomes a kind of indispensable component in silicon steel coating.Di(2-ethylhexyl)phosphate
Hydrogen aluminum is the main component in silicon steel insulating coating solution, and aluminium dihydrogen phosphate acts primarily as the effect of bonding agent in insulating coating solution, so
And the free phosphorus in aluminium dihydrogen phosphate is unstable, surface tack is made, and easily cracks surface toward bottom internal diffusion.
Patent CN101020575A is related to a kind of preparation method of modified phosphate sol.Add in phosphate organic
Silicon compound, strengthens the compatibility of phosphate and other components.It is miscellaneous that the phosphate sol prepared using the method easily brings other into
Matter thing, affects the stability of coating.
Content of the invention
Embodiment of the present invention technical problem to be solved is, more for impurities in existing aluminium dihydrogen phosphate
Problem, it is proposed that a kind of preparation method of silicon steel with biphosphate aluminium paint.
In order to solve above-mentioned technical problem, a kind of preparation of silicon steel biphosphate aluminium paint is embodiments provided
Method, the preparation method of the silicon steel biphosphate aluminium paint include：By the aluminium hydroxide of 100 weight portions with more than 50 DEG C of heat
Water washing；The phosphoric acid of 50～65 weight portions is added in reactor, 65 DEG C～75 DEG C are heated to, hydrogen-oxygen is then added while stirring
Change aluminum；After aluminium hydroxide is all added, stop stirring, after 20～40 minutes, reaction terminates, and is cooled to 45 DEG C～55 DEG C, mistake
Filter；Detection and analysis, adjusts pH value.
Wherein, the temperature of hot water is 60 DEG C～70 DEG C, and weight is identical with aluminium hydroxide.
Wherein, washing degree will reach the pH value of washings and reach 7～8.
Wherein, aluminium hydroxide with the mol ratio of phosphoric acid is：(0.8～1.2)：3.
Wherein, after aluminium hydroxide is all added, stop stirring, after 30 minutes, reaction terminates, and is cooled to 50 DEG C, filter.
Implement the embodiment of the present invention, have the advantages that：The present invention production aluminium dihydrogen phosphate impure few, easily with
Other components in silicon steel coating are compatible, improve the stability of insulating coating solution；And aluminium dihydrogen phosphate prepared by the present invention
Middle free phosphoric acid is reduced, and makes coating surface crack minimizing, is conducive to insulating properties and the adhesive force for improving coating.
Description of the drawings
Fig. 1 is the flow chart of the silicon steel with the preparation method of biphosphate aluminium paint of first embodiment of the invention.
Specific embodiment
Below the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described enforcement
Example is only a part of embodiment of the invention, rather than whole embodiment.Embodiment in based on the present invention, this area are common
The every other embodiment obtained under the premise of creative work is not made by technical staff, belongs to the model of present invention protection
Enclose.
Referring to Fig. 1, Fig. 1 is the flow process of the silicon steel with the preparation method of biphosphate aluminium paint of first embodiment of the invention
Figure.The invention provides a kind of preparation method of silicon steel with biphosphate aluminium paint, system of the silicon steel with biphosphate aluminium paint
Preparation Method includes step：
In step s 11, by the aluminium hydroxide of 100 weight portions with more than 50 DEG C of hot wash.The temperature of hot water is optimal
For 60 DEG C～70 DEG C, and weight is identical with aluminium hydroxide.In washing, washing degree to reach the pH value of washings reach 7～
8.On the one hand this step is to wash the sodium hydroxide remained in aluminium hydroxide off, it is to avoid Na+ ions and phosphatase reaction；On the other hand it is
Activate aluminium hydroxide, be conducive to aluminium hydroxide and phosphatase reaction.
In step s 12, the phosphoric acid of 50～65 weight portions is added in reactor, is heated to 65 DEG C～75 DEG C, Ran Houbian
Stirring side adds aluminium hydroxide.Aluminium hydroxide with the mol ratio of phosphoric acid is：(0.8～1.2)：3, reduce product aluminium dihydrogen phosphate
In free phosphoric acid.
In step s 13, after aluminium hydroxide is all added, stop stirring, after 20～40 minutes, reaction terminates, cooling
To 45 DEG C～55 DEG C, filter.Wherein, the response time is preferably 30 minutes, and chilling temperature is preferably 50 DEG C.
In step S14, detection and analysis adjusts pH value.
The method have the characteristics that the aluminium hydroxide for participating in reaction is first filtered using front, aluminum hydroxide particles are thinner
Little, react more abundant, the impurity in the aluminium dihydrogen phosphate of generation is fewer.
The comparative example of the several embodiments of the invention of annex and non-invention below, with proving effect：
Table 1：Implementing process
Table two：Coating performance result
The coating property that works it out by the method for the present invention is can be seen that by above-mentioned two table more preferably.
Implement the embodiment of the present invention, have the advantages that：The silicon steel biphosphate aluminium paint that the present invention is provided
Preparation method simple structure, part are simple, reduce production cost, and do not reduce product quality.
These are only presently preferred embodiments of the present invention, not in order to limit the present invention, all spirit in the present invention and
Within principle, any modification, equivalent substitution and improvements that is made etc. should be included within the scope of the present invention.
Claims (5)
1. a kind of preparation method of silicon steel with biphosphate aluminium paint, it is characterised in that silicon steel biphosphate aluminium paint
Preparation method include：
By the aluminium hydroxide of 100 weight portions with more than 50 DEG C of hot wash；
The phosphoric acid of 50～65 weight portions is added in reactor, 65 DEG C～75 DEG C is heated to, is then added the hydrogen while stirring
Aluminium oxide；
After the aluminium hydroxide is all added, stop stirring, after 20～40 minutes, reaction terminates, and is cooled to 45 DEG C～55 DEG C,
Filter；
Detection and analysis, adjusts pH value.
2. preparation method of the silicon steel according to claim 1 with biphosphate aluminium paint, it is characterised in that the hot water
Temperature is 60 DEG C～70 DEG C, and weight is identical with the aluminium hydroxide.
3. preparation method of the silicon steel according to claim 2 with biphosphate aluminium paint, it is characterised in that washing degree will
The pH value for reaching washings reaches 7～8.
4. preparation method of the silicon steel according to claim 1 with biphosphate aluminium paint, it is characterised in that the hydroxide
Aluminum with the mol ratio of the phosphoric acid is：(0.8～1.2)：3.
5. preparation method of the silicon steel according to claim 1 with biphosphate aluminium paint, it is characterised in that when the hydrogen-oxygen
After changing the whole additions of aluminum, stop stirring, after 30 minutes, reaction terminates, and is cooled to 50 DEG C, filters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611006828.3A CN106497164A (en) | 2016-11-16 | 2016-11-16 | A kind of preparation method of silicon steel with biphosphate aluminium paint |
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|---|---|---|---|
| CN201611006828.3A CN106497164A (en) | 2016-11-16 | 2016-11-16 | A kind of preparation method of silicon steel with biphosphate aluminium paint |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107459024A (en) * | 2017-07-28 | 2017-12-12 | 贵州大学 | The method that submicron-sized particulate aluminium dihydrogen phosphate powder is prepared in pelite |
| CN110217770A (en) * | 2019-06-18 | 2019-09-10 | 佛山市德方纳米科技有限公司 | The preparation method of aluminium dihydrogen phosphate |
| CN114195111A (en) * | 2021-12-17 | 2022-03-18 | 贵州安达科技能源股份有限公司 | Method for co-producing porous micron silicon-carbon composite particles and aluminum dihydrogen phosphate by phosphoric acid method |
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| CN104725989A (en) * | 2015-03-23 | 2015-06-24 | 苏州市神龙门窗有限公司 | Environment-friendly insulating paint for doors/windows and preparation method thereof |
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| CN104725989A (en) * | 2015-03-23 | 2015-06-24 | 苏州市神龙门窗有限公司 | Environment-friendly insulating paint for doors/windows and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107459024A (en) * | 2017-07-28 | 2017-12-12 | 贵州大学 | The method that submicron-sized particulate aluminium dihydrogen phosphate powder is prepared in pelite |
| CN107459024B (en) * | 2017-07-28 | 2020-03-17 | 贵州大学 | Method for preparing ultrafine-grained aluminum dihydrogen phosphate powder in aluminous rock |
| CN110217770A (en) * | 2019-06-18 | 2019-09-10 | 佛山市德方纳米科技有限公司 | The preparation method of aluminium dihydrogen phosphate |
| CN110217770B (en) * | 2019-06-18 | 2021-08-13 | 佛山市德方纳米科技有限公司 | Preparation method of aluminum dihydrogen phosphate |
| CN114195111A (en) * | 2021-12-17 | 2022-03-18 | 贵州安达科技能源股份有限公司 | Method for co-producing porous micron silicon-carbon composite particles and aluminum dihydrogen phosphate by phosphoric acid method |
| CN114195111B (en) * | 2021-12-17 | 2022-09-16 | 贵州安达科技能源股份有限公司 | Method for co-producing porous micron silicon-carbon composite particles and aluminum dihydrogen phosphate by phosphoric acid method |
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Application publication date: 20170315 |