CN107902673A - A kind of new production technology using fluosilicic acid production sodium fluoride co-producing white carbon black - Google Patents
A kind of new production technology using fluosilicic acid production sodium fluoride co-producing white carbon black Download PDFInfo
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- CN107902673A CN107902673A CN201711177430.0A CN201711177430A CN107902673A CN 107902673 A CN107902673 A CN 107902673A CN 201711177430 A CN201711177430 A CN 201711177430A CN 107902673 A CN107902673 A CN 107902673A
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- CN
- China
- Prior art keywords
- sodium fluoride
- white carbon
- fluosilicic acid
- carbon black
- sodium
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D3/00—Halides of sodium, potassium or alkali metals in general
- C01D3/02—Fluorides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Silicon Compounds (AREA)
Abstract
The present invention provides a kind of new production technology using fluosilicic acid production sodium fluoride co-producing white carbon black, with fluosilicic acid, waterglass (sodium metasilicate), soda ash is main material production high-purity silicon dioxide and coproduction sodium fluoride technique, and the waste water fluorination mother liquid of sodium recycling of sodium fluoride will be produced, the wastewater treatment pressure of production white carbon enterprise and sodium fluoride enterprise is solved significantly, is substantially reduced sodium fluoride and the white carbon cost of raw material, is greatly promoted sodium fluoride and the white carbon black production performance of enterprises.
Description
Technical field
The invention belongs to chemical field, is specifically a kind of new life using fluosilicic acid production sodium fluoride co-producing white carbon black
Production. art.
Background technology
Sodium fluoride is mainly used for making Phosphating Accelerant in application industry, stablizes phosphating solution, and phosphatization refinement, improves phosphating coat
Performance.Al3+ of the closing with highly harmful negative catalyst, makes phosphatization be smoothed out timber in aluminium and its alloy phosphating
Preservative, agricultural fungicides, brewing industry fungicide, medical preservative, solder flux, alkaline zincate galvanizing additive and ward off
Porcelain, paper-making industry etc..
White carbon is used primarily in colorful rubber product carries out reinforcement with alternative carbon black, meets white or translucent product
Need.White carbon has superpower adhesion, tear-proof and heat-resisting anti-aging property at the same time, so in black rubber product also
Alternative part carbon black, to obtain the rubber of high quality, such as off-the-highway tire, engineering tyre, radial-ply tyre.White carbon may be used also
For plastics (improvement processing performance), papermaking, coating, pesticide etc..
The traditional handicraft of sodium fluoride is made with by-product fluosilicic acid sodium and the soda ash reaction of phosphate fertilizer plant, traditional work of white carbon
Skill is made with sulfuric acid and waterglass reaction.Traditional technique, wastewater treatment pressure is big, and the cost of raw material is high.
The content of the invention
For the drawbacks described above of the prior art, given birth to the purpose of the invention is to provide a kind of new inorganic acid instead of sulfuric acid
Produce white carbon and a kind of new Fluorine source fluosilicic acid replaces prodan production sodium fluoride, and the waste water for producing sodium fluoride is fluorinated
Mother liquid of sodium reuses, and solves the wastewater treatment pressure of production white carbon enterprise and sodium fluoride enterprise significantly, substantially reduces fluorination
Sodium and the white carbon cost of raw material, greatly promote sodium fluoride and the white carbon black production performance of enterprises.
The present invention reaction equation be：
1、H2SiF6+Na2SiO3――→Na2SiF6+H2O+SiO2
2、Na2SiF6+2Na2CO3――→6NaF+SiO2+2CO2
A kind of new production technology using fluosilicic acid production sodium fluoride co-producing white carbon black, it is characterised in that including as follows
Step：
1) water glass solution after dilution and fluosilicic acid are put into reaction kettle at the same time in proportion, reaction process leads to steam liter
Temperature；
2) waterglass and fluosilicic acid after completion of the reaction, slowly put into soda ash solution, and reaction process leads to steam heating；
3) after the reaction was complete in reaction kettle, separated admittedly after reaction solution is carried out flotation using difference in specific gravity, Gu solid separation
For sodium fluoride and silica, silica can do white carbon sale after press filtration, drying, and sodium fluoride is done after centrifugation
Dry is sodium fluoride finished product.
A kind of new production technology using fluosilicic acid production sodium fluoride co-producing white carbon black, it is characterised in that step
It is rapid 1) in lead to steam and be warming up to 80 DEG C, control pH value 4-5.
A kind of new production technology using fluosilicic acid production sodium fluoride co-producing white carbon black, it is characterised in that step
It is rapid 2) in lead to steam and be warming up to 80 DEG C, control pH value 9-10.
A kind of new production technology using fluosilicic acid production sodium fluoride co-producing white carbon black, it is characterised in that step
It is rapid 2) in first by sodium carbonate water or fluorination mother liquid of sodium dissolving, carbonate content 15-16%.
A kind of new production technology using fluosilicic acid production sodium fluoride co-producing white carbon black, it is characterised in that step
It is rapid 1) in the waterglass of 32-34% is diluted to 15-16% waterglass contents.
A kind of new production technology using fluosilicic acid production sodium fluoride co-producing white carbon black, it is characterised in that step
It is rapid 1) in 40% fluosilicic acid is diluted to 15%.
A kind of new production technology using fluosilicic acid production sodium fluoride co-producing white carbon black, it is characterised in that step
It is rapid 2) in first by sodium carbonate water or fluorination mother liquid of sodium dissolving, carbonate content 20-21%.
A kind of new production technology using fluosilicic acid production sodium fluoride co-producing white carbon black, it is characterised in that step
It is rapid 1) in the waterglass of 32-34% is diluted to 20-21% waterglass contents.
A kind of new production technology using fluosilicic acid production sodium fluoride co-producing white carbon black, it is characterised in that step
It is rapid 1) in 40% fluosilicic acid is diluted to 20-21%.
A kind of new production technology using fluosilicic acid production sodium fluoride co-producing white carbon black of the present invention, have has as follows
Beneficial effect：
1. replacing gas washing in SA production white carbon using by-product fluosilicic acid, the wastewater treatment that can solve white carbon traditional handicraft is asked
Topic；
2. replacing gas washing in SA production white carbon using by-product fluosilicic acid, the cost of material of white carbon can be substantially reduced；
3. continuing to produce sodium fluoride using the prodan that by-product fluosilicic acid replaces gas washing in SA production white carbon to obtain, not only may be used
To increase the performance of enterprises, the sewage discharge of white carbon black production enterprise can also be reduced；
4. the mother liquor of production sodium fluoride process may be reused, one can reduce business processes waste water cost, and two can be with
Improve the yield and the performance of enterprises of sodium fluoride；
5. replacing prodan production sodium fluoride using fluosilicic acid, the cost of material of sodium fluoride can be greatly reduced；
6. controlling reaction temperature, ensures the crystallinity of sodium fluoride；
7. controlling reaction temperature, ensures the quality of white carbon；
8. controlling reaction density, ensure the quality of white carbon and sodium fluoride, improve manufacturing enterprise's benefit.
Embodiment
Embodiment 1
1. by sodium carbonate water or fluorination mother liquid of sodium dissolving, content 15-16%.
2. 32-34% waterglass is diluted to 15-16% waterglass contents；
3. 40% fluosilicic acid is diluted to 15%；
4. the water glass solution after dilution and fluosilicic acid are put into reaction kettle at the same time in proportion, reaction process leads to steam liter
Temperature controls pH value 4-5 to 80 DEG C；
5. waterglass and fluosilicic acid are after completion of the reaction, soda ash solution is slowly put into by reaction ratio, reaction process leads to steam
80 DEG C are warming up to, control pH value 9-10；
After 6. the reaction was complete in reaction kettle, separated admittedly after carrying out flotation using difference in specific gravity reaction solution, admittedly it is separated into admittedly
Sodium fluoride and silica.Silica can do white carbon sale after press filtration, drying.It is dried i.e. after sodium fluoride centrifugation
For sodium fluoride finished product.
Embodiment 2
1. by sodium carbonate water or fluorination mother liquid of sodium dissolving, content 20-21%.
2. 32-34% waterglass is diluted to 20-21% waterglass contents；
3. 40% fluosilicic acid is diluted to 20-21%；
4. the water glass solution after dilution and fluosilicic acid are put into reaction kettle at the same time in proportion, reaction process leads to steam liter
Temperature controls pH value 4-5 to 80 DEG C；
5. waterglass and fluosilicic acid are after completion of the reaction, soda ash solution is slowly put into by reaction ratio, reaction process leads to steam
80 DEG C are warming up to, control pH value 9-10；
After 6. the reaction was complete in reaction kettle, separated admittedly after carrying out flotation using difference in specific gravity reaction solution, admittedly it is separated into admittedly
Sodium fluoride and silica.Silica can do white carbon sale after press filtration, drying.It is dried i.e. after sodium fluoride centrifugation
For sodium fluoride finished product.
Embodiment 3
1. by sodium carbonate water or fluorination mother liquid of sodium dissolving, content 15-16%.
2. 32-34% waterglass is diluted to 15-16% waterglass contents；
3. 40% fluosilicic acid is diluted to 20-21%；
4. by the water glass solution after dilution and fluosilicic acid in proportion 1：1.05 put into reaction kettle at the same time, and reaction process is led to
Steam is warming up to 80 DEG C, control pH value 4-5；
5. waterglass and fluosilicic acid are after completion of the reaction, soda ash solution, reaction process are slowly put into by the 1.05 of reaction ratio
Logical steam is warming up to 80 DEG C, control pH value 9-10；
After 6. the reaction was complete in reaction kettle, separated admittedly after carrying out flotation using difference in specific gravity reaction solution, admittedly it is separated into admittedly
Sodium fluoride and silica.Silica can do white carbon sale after press filtration, drying.It is dried i.e. after sodium fluoride centrifugation
For sodium fluoride finished product.
Embodiment 4
1. by sodium carbonate water or fluorination mother liquid of sodium dissolving, content 20-21%.
2. 32-34% waterglass is diluted to 20-21% waterglass contents；
3. 40% fluosilicic acid is diluted to 20-21%；
4. by the water glass solution after dilution and fluosilicic acid in proportion 1：1.05 put into reaction kettle at the same time, and reaction process is led to
Steam is warming up to 80 DEG C, control pH value 4-5；
5. waterglass and fluosilicic acid are after completion of the reaction, soda ash solution is slowly put into by the 1.1 of reaction ratio, reaction process is led to
Steam is warming up to 80 DEG C, control pH value 9-10；
After 6. the reaction was complete in reaction kettle, separated admittedly after carrying out flotation using difference in specific gravity reaction solution, admittedly it is separated into admittedly
Sodium fluoride and silica.Silica can do white carbon sale after press filtration, drying.It is dried i.e. after sodium fluoride centrifugation
For sodium fluoride finished product.
The results are shown in Table 1 for the sodium fluoride product quality analysis produced using the method for the present invention：
1 sodium fluoride product quality analysis result of table
The results show that the sodium fluoride product quality that the method for the present invention is produced complies fully with YST 517-2009 standards.
High-purity silicon dioxide (rubber chemicals precipitated hydrated silica) quality produced using the method for the present invention
Analysis result is as shown in table 2：
2 high-purity silicon dioxide quality analysis results of table
The results show that the silica quality that the method for the present invention is produced complies fully with HG/T 3061-2009 standards.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, within the spirit and principles of the invention
All any modification, equivalent and improvement made etc., are all contained within protection scope of the present invention.
Claims (9)
1. a kind of new production technology using fluosilicic acid production sodium fluoride co-producing white carbon black, it is characterised in that including following step
Suddenly：
1) water glass solution after dilution and fluosilicic acid are put into reaction kettle at the same time in proportion, reaction process leads to steam heating；
2) waterglass and fluosilicic acid after completion of the reaction, slowly put into soda ash solution, and reaction process leads to steam heating；
3) after the reaction was complete in reaction kettle, separated admittedly after reaction solution is carried out flotation using difference in specific gravity, admittedly fluorine is separated into admittedly
Change sodium and silica, silica can do white carbon sale after press filtration, drying, and sodium fluoride is dried i.e. after centrifugation
For sodium fluoride finished product.
2. a kind of new production technology using fluosilicic acid production sodium fluoride co-producing white carbon black as claimed in claim 1, its
It is characterized in that leading to steam in step 1) is warming up to 80 DEG C, control pH value 4-5.
3. a kind of new production technology using fluosilicic acid production sodium fluoride co-producing white carbon black as claimed in claim 1, its
It is characterized in that leading to steam in step 2) is warming up to 80 DEG C, control pH value 9-10.
4. a kind of new production technology using fluosilicic acid production sodium fluoride co-producing white carbon black as claimed in claim 1, its
It is characterized in that sodium carbonate water or fluorination mother liquid of sodium dissolving, carbonate content 15-16% in step 2) first.
5. a kind of new production technology using fluosilicic acid production sodium fluoride co-producing white carbon black as claimed in claim 1, its
It is characterized in that in step 1) waterglass of 32-34% being diluted to 15-16% waterglass contents.
6. a kind of new production technology using fluosilicic acid production sodium fluoride co-producing white carbon black as claimed in claim 1, its
It is characterized in that 40% fluosilicic acid is diluted to 15% in step 1).
7. a kind of new production technology using fluosilicic acid production sodium fluoride co-producing white carbon black as claimed in claim 1, its
It is characterized in that sodium carbonate water or fluorination mother liquid of sodium dissolving, carbonate content 20-21% in step 2) first.
8. a kind of new production technology using fluosilicic acid production sodium fluoride co-producing white carbon black as claimed in claim 1, its
It is characterized in that in step 1) waterglass of 32-34% being diluted to 20-21% waterglass contents.
9. a kind of new production technology using fluosilicic acid production sodium fluoride co-producing white carbon black as claimed in claim 1, its
It is characterized in that 40% fluosilicic acid is diluted to 20-21% in step 1).
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| CN201711177430.0A CN107902673A (en) | 2017-11-23 | 2017-11-23 | A kind of new production technology using fluosilicic acid production sodium fluoride co-producing white carbon black |
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| CN201711177430.0A CN107902673A (en) | 2017-11-23 | 2017-11-23 | A kind of new production technology using fluosilicic acid production sodium fluoride co-producing white carbon black |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023035099A1 (en) * | 2021-09-07 | 2023-03-16 | 无锡恒诚硅业有限公司 | Precipitated silicon dioxide for green tire and preparation method for precipitated silicon dioxide |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104030297A (en) * | 2014-07-03 | 2014-09-10 | 江西渠成氟化学有限公司 | Novel production technology for producing sodium fluoride and white carbon black in co-production mode by using fluorosilicic acid |
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- 2017-11-23 CN CN201711177430.0A patent/CN107902673A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104030297A (en) * | 2014-07-03 | 2014-09-10 | 江西渠成氟化学有限公司 | Novel production technology for producing sodium fluoride and white carbon black in co-production mode by using fluorosilicic acid |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023035099A1 (en) * | 2021-09-07 | 2023-03-16 | 无锡恒诚硅业有限公司 | Precipitated silicon dioxide for green tire and preparation method for precipitated silicon dioxide |
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Application publication date: 20180413 |