CN107697939A - A kind of method that ice crystal is produced using waste gas containing fluoride - Google Patents
A kind of method that ice crystal is produced using waste gas containing fluoride Download PDFInfo
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- CN107697939A CN107697939A CN201711183048.0A CN201711183048A CN107697939A CN 107697939 A CN107697939 A CN 107697939A CN 201711183048 A CN201711183048 A CN 201711183048A CN 107697939 A CN107697939 A CN 107697939A
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- China
- Prior art keywords
- ice crystal
- waste gas
- gas containing
- value
- containing fluoride
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Classifications
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/48—Halides, with or without other cations besides aluminium
- C01F7/50—Fluorides
- C01F7/54—Double compounds containing both aluminium and alkali metals or alkaline-earth metals
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Removal Of Specific Substances (AREA)
Abstract
The present invention relates to a kind of method that ice crystal is produced using waste gas containing fluoride, prodan made from waste gas containing fluoride recovery；Suitable quantity of water is configured to fluorine-containing solution；Ammoniacal liquor is added, separates out silica gel；Solid aluminum sulfate, sodium chloride solution are added, continues stirring 1 hour；It is 4 to add ammoniacal liquor regulation pH value；Precipitation ice crystal；It is 7 to be rinsed repeatedly with clear water to pH value, and ice crystal is centrifuged in centrifuge, is dried, and ice crystal is made；Heretofore described method is that the ice crystal quality that raw material is chemically reacted to obtain is good, production cost is low using waste gas containing fluoride, while can be effectively protected environment.
Description
Technical field
The invention of this reality is related to a kind of production method of ice crystal, especially a kind of side that ice crystal is produced using waste gas containing fluoride
Method.
Background technology
Ice crystal is mainly used as the cosolvent of aluminium metallurgy, is also used as the insecticide of crops, enamel opalizer, glass and
The opacifier and cosolvent of enamel production, the wear-resistant filler of resin rubber.The life of ferroalloy and boiling steel can also be same as
Production.Ice crystal has a small amount of natural deposit, and at present, ice crystal industrialized production method mainly has soda ash fluorine chloric acid method, clay
Bittern method, fluosilicic acid production ice crystal co-producing white carbon black method etc., these methods are required to take certain fluorine resource, production cost
It is of a relatively high, and the different environmental pollution of degree all be present in current technology.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of method that ice crystal is produced using fluorine waste gas, to improve product
Quality, production cost is reduced, while reduce the pollution to environment.
The technical scheme is that：A kind of method that ice crystal is produced using waste gas containing fluoride, is comprised the following steps：
1) prodan made from waste gas containing fluoride recovery；
2) suitable quantity of water is configured to fluorine-containing solution；
3) under strong agitation, ammoniacal liquor is slowly added into pH value 8.5~9, separates out silica gel completely；
4) silica gel is filtered out, filtrate adds dilute sulfuric acid, adjusts pH to 5.5；
5) more than 90 DEG C are heated, Solid aluminum sulfate is slowly added in the case where being stirred continuously, is reacted 0.5 hour；
6) sodium chloride solution of purification is added, continues stirring 1 hour；
7) it is 3~4 that will add ammoniacal liquor regulation pH value；
8) Precipitation ice crystal；
9) it is 6~7 to be rinsed repeatedly with clear water to pH value, and ice crystal is centrifuged in centrifuge；
10) dry, ice crystal is made.
Beneficial effects of the present invention：Heretofore described method uses fluorine waste gas to be chemically reacted what is obtained for raw material
Ice crystal quality is good, production cost is low, while can be effectively protected environment.
Embodiment
Embodiment one
1. prodan made from waste gas containing fluoride recovery；
2. suitable quantity of water is configured to fluorine-containing solution；
3. under strong agitation, ammoniacal liquor is slowly added into pH value 8.5, separates out silica gel completely；
4. filtering out silica gel, filtrate adds dilute sulfuric acid, adjusts pH to 5.5；
5. being heated to 90 DEG C, Solid aluminum sulfate is slowly added in the case where being stirred continuously, is reacted 0.5 hour；
6. adding the sodium chloride solution of purification, continue stirring 1 hour；
7. it is 3 that will add ammoniacal liquor regulation pH value；
8. Precipitation ice crystal；
9. it is 6 to be rinsed repeatedly with clear water to pH value, ice crystal is centrifuged in centrifuge；
10. drying, ice crystal is made.
Embodiment two
A. prodan made from waste gas containing fluoride recovery；
B. suitable quantity of water is configured to fluorine-containing solution；
C. under strong agitation, ammoniacal liquor is slowly added into pH value 8.8, separates out silica gel completely；
D. silica gel is filtered out, filtrate adds dilute sulfuric acid, adjusts pH to 5.5；
E. more than 90 DEG C are heated, Solid aluminum sulfate is slowly added in the case where being stirred continuously, is reacted 0.5 hour；
F. the sodium chloride solution of purification is added, continues stirring 1 hour；
G. it is 3.5 that ammoniacal liquor regulation pH value, which will be added,；
H. Precipitation ice crystal；
I. it is 6.5 to be rinsed repeatedly with clear water to pH value, and ice crystal is centrifuged in centrifuge；
J. dry, ice crystal is made.
Embodiment three
1. prodan made from waste gas containing fluoride recovery；
2. suitable quantity of water is configured to fluorine-containing solution；
3. under strong agitation, it is 9 to be slowly added into ammoniacal liquor to pH value, separates out silica gel completely；
4. filtering out silica gel, filtrate adds dilute sulfuric acid, adjusts pH to 5.5；
5. more than 90 DEG C of heating, Solid aluminum sulfate is slowly added in the case where being stirred continuously, react 0.5 hour；
6. adding the sodium chloride solution of purification, continue stirring 1 hour；
7. it is 4 that will add ammoniacal liquor regulation pH value；
8. Precipitation ice crystal；
9. it is 7 to be rinsed repeatedly with clear water to pH value, ice crystal is centrifuged in centrifuge；
Dry, ice crystal is made.
Claims (1)
1. a kind of method that ice crystal is produced using waste gas containing fluoride, is comprised the following steps：
1) prodan made from waste gas containing fluoride recovery；
2) suitable quantity of water is configured to fluorine-containing solution；
3) under strong agitation, ammoniacal liquor is slowly added into pH value 8.5~9, separates out silica gel completely；
4) silica gel is filtered out, filtrate adds dilute sulfuric acid, adjusts pH to 5.5；
5) more than 90 DEG C are heated, Solid aluminum sulfate is slowly added in the case where being stirred continuously, is reacted 0.5 hour；
6) sodium chloride solution of purification is added, continues stirring 1 hour；
7) it is 3~4 that will add ammoniacal liquor regulation pH value；
8) Precipitation ice crystal；
9) it is 6~7 to be rinsed repeatedly with clear water to pH value, and ice crystal is centrifuged in centrifuge；
10) dry, ice crystal is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711183048.0A CN107697939A (en) | 2017-11-23 | 2017-11-23 | A kind of method that ice crystal is produced using waste gas containing fluoride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711183048.0A CN107697939A (en) | 2017-11-23 | 2017-11-23 | A kind of method that ice crystal is produced using waste gas containing fluoride |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107697939A true CN107697939A (en) | 2018-02-16 |
Family
ID=61180783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711183048.0A Pending CN107697939A (en) | 2017-11-23 | 2017-11-23 | A kind of method that ice crystal is produced using waste gas containing fluoride |
Country Status (1)
| Country | Link |
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| CN (1) | CN107697939A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107840358A (en) * | 2017-12-11 | 2018-03-27 | 达州励志环保科技有限公司 | A kind of method that ice crystal is produced using waste gas containing fluoride |
| CN109721090A (en) * | 2019-03-06 | 2019-05-07 | 山东聚科源铝业科技有限公司 | A method of reducing ice crystal molecular proportion |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104556179A (en) * | 2014-12-09 | 2015-04-29 | 常宁市华骏再生资源有限公司 | Method for producing cryolite from fluorine-containing waste gas |
-
2017
- 2017-11-23 CN CN201711183048.0A patent/CN107697939A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104556179A (en) * | 2014-12-09 | 2015-04-29 | 常宁市华骏再生资源有限公司 | Method for producing cryolite from fluorine-containing waste gas |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107840358A (en) * | 2017-12-11 | 2018-03-27 | 达州励志环保科技有限公司 | A kind of method that ice crystal is produced using waste gas containing fluoride |
| CN109721090A (en) * | 2019-03-06 | 2019-05-07 | 山东聚科源铝业科技有限公司 | A method of reducing ice crystal molecular proportion |
| CN109721090B (en) * | 2019-03-06 | 2021-03-23 | 山东绿脉铝业科技有限公司 | Method for reducing cryolite molecular ratio |
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| PB01 | Publication | ||
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Application publication date: 20180216 |