CN105000563A - Method for preparing sodium fluosilicate by using fluorine-containing silicon slag - Google Patents
Method for preparing sodium fluosilicate by using fluorine-containing silicon slag Download PDFInfo
- Publication number
- CN105000563A CN105000563A CN201510400070.0A CN201510400070A CN105000563A CN 105000563 A CN105000563 A CN 105000563A CN 201510400070 A CN201510400070 A CN 201510400070A CN 105000563 A CN105000563 A CN 105000563A
- Authority
- CN
- China
- Prior art keywords
- fluorine
- white residue
- containing white
- sodium silicofluoride
- prepares
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 title claims abstract description 57
- 229910052708 sodium Inorganic materials 0.000 title claims abstract description 57
- 239000011734 sodium Substances 0.000 title claims abstract description 57
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 229910052731 fluorine Inorganic materials 0.000 title claims abstract description 54
- 239000011737 fluorine Substances 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 47
- 239000002893 slag Substances 0.000 title abstract 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title abstract 6
- 229910052710 silicon Inorganic materials 0.000 title abstract 6
- 239000010703 silicon Substances 0.000 title abstract 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 57
- 239000007788 liquid Substances 0.000 claims abstract description 33
- 238000006243 chemical reaction Methods 0.000 claims abstract description 30
- 239000007787 solid Substances 0.000 claims abstract description 25
- 238000000926 separation method Methods 0.000 claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 claims abstract description 9
- 238000001035 drying Methods 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims description 32
- 238000005119 centrifugation Methods 0.000 claims description 18
- 239000002253 acid Substances 0.000 claims description 16
- 238000005406 washing Methods 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 239000007789 gas Substances 0.000 claims description 12
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 10
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 7
- 229910000040 hydrogen fluoride Inorganic materials 0.000 claims description 7
- 239000002367 phosphate rock Substances 0.000 claims description 7
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical group [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 6
- 238000000354 decomposition reaction Methods 0.000 claims description 6
- 239000008367 deionised water Substances 0.000 claims description 6
- 229910021641 deionized water Inorganic materials 0.000 claims description 6
- 239000012153 distilled water Substances 0.000 claims description 6
- 229910052700 potassium Inorganic materials 0.000 claims description 6
- 239000011591 potassium Substances 0.000 claims description 6
- 239000011435 rock Substances 0.000 claims description 6
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 5
- 230000035484 reaction time Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 8
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 230000002378 acidificating effect Effects 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 238000009963 fulling Methods 0.000 abstract 1
- 239000002440 industrial waste Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 description 14
- -1 sodium aluminum fluoride Chemical compound 0.000 description 7
- 239000011775 sodium fluoride Substances 0.000 description 7
- 235000013024 sodium fluoride Nutrition 0.000 description 7
- 238000004064 recycling Methods 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 229910052656 albite Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000003605 opacifier Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- ABTOQLMXBSRXSM-UHFFFAOYSA-N silicon tetrafluoride Chemical compound F[Si](F)(F)F ABTOQLMXBSRXSM-UHFFFAOYSA-N 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
Landscapes
- Removal Of Specific Substances (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to industrial waste slag comprehensive utilization technologies, and specifically relates to a method for preparing sodium fluosilicate by using fluorine-containing silicon slag. The method comprises: fulling mixing the fluorine-containing silicon slag and sodium hydroxide with a concentration of 5% to 30%, adjusting microwave power to a metal temperature of 70 to 120 DEG C for microwave reaction for 3 to 60 min, and after a cooling temperature is 30 to 55 DEG C, obtaining solid sodium fluosilicate after solid-liquid separation and drying treatment . According to the process of the invention, waste fluorine-containing silicon slag is combined with the microwave technology, and sodium fluosilicate is generated in one step. Production costs are low and the process is simple, and harm of acidic silicon slag on the environment is eliminated. The invention is low-carbon environmental, and actually achieve an effect of fluorine-containing silicon slag environment friendly and high effective utilization and development.
Description
Technical field
The present invention relates to a kind of method that fluorine-containing white residue prepares Sodium Silicofluoride, belong to chemical production technical field.
Background technology
All the fluoro-gas such as a large amount of silicon tetrafluoride, hydrogen fluoride can be produced in the process of Rock Phosphate (72Min BPL) decomposition, Phosphoric Acid Concentration, potassium bearing rock process, hydrogen fluoride production, enterprise of large department adopts water to absorb and generates fluorine-containing white residue at present, but this method produces a large amount of white residue piles up, and then cause serious environmental issue, so the recycling of fluoro-gas becomes problem demanding prompt solution.
Sodium Silicofluoride has good application market, and it is applied to building materials field, can be used as moisture adsorbent, retardant, sanitas etc.; Be applied to latex product field, can be used as opacifier, fusing assistant etc.; Be applied to agriculture field, can be used as sterilant, therefore, Sodium Silicofluoride has good work, agricultural application is worth.
At present, in the existing production technology of Sodium Silicofluoride, auxiliary reagent is many, produces a large amount of trade effluent, and processing step is complicated, and preparation condition is harsh.As the patent No. for disclose albite treated, point solve fluoro-gas, again through hydrolysis, acidleach, obtain pickling liquor, through crystallization and sodium sulfate hybrid reaction, utilize gravity settling technology to carry out being separated, drying treatment, obtain Sodium Silicofluoride product, this method cost is low, pollute little, but product quality is poor, performance is low.
For solving the problems of the technologies described above, this technique is that the recycling of fluoro-gas and the production of Sodium Silicofluoride provide a kind of new approaches.
Summary of the invention
For solving the problem of complex utilization of prior art problem and related industries waste residue, this technique adopts microwave reaction technique, and a step generates Sodium Silicofluoride.
Its technical scheme, comprises the following steps:
(1) be that 5%-30% sodium hydroxide carries out mix and blend by fluorine-containing white residue and concentration, be placed in microwave reaction kettle, regulate microwave power to be under the condition of 70-120 DEG C to material temperature, carry out microwave reaction 3-60min;
(2) product of microwave reaction being cooled to temperature is after 30-55 DEG C, through solid-liquid separation, obtains solid and liquid, by solid after 1-8 washing, drying step, obtains Sodium Silicofluoride.
Described fluorine-containing white residue is the fluoro-gas produced in Rock Phosphate (72Min BPL) decomposition, Phosphoric Acid Concentration, potassium bearing rock process, hydrogen fluoride production process, through absorbing process, obtains acid solid.
Described fluorine-containing white residue and the mass volume ratio of sodium hydroxide are 1:1-8, and the mix and blend time is 5-70min.
Described microwave power is 1-25kw, and the microwave reaction time is 5-20min.
Described solid-liquid separation adopts centrifugation.
The described centrifugation time is 10-30min, and rotating speed is 5000-10000r/min; The preferred centrifugation time is 18min, and rotating speed is 8000r/min.
In described step (2), liquid is sodium aluminum fluoride, Sodium Fluoride product.
Described washing adopts deionized water or distilled water to wash.
Described time of drying is 1-5h, and drying temperature is 50-130 DEG C.
Beneficial effect of the present invention
The present invention utilizes microwave technology, the fluorine-containing white residue of one step process generates Sodium Silicofluoride, substantially reduce the reaction times, reduce energy consumption, wherein microwave power, effective control of microwave time and material temperature, promote storeroom reaction, the result of Sodium Silicofluoride content is detected in conjunction with traditional detection mode, the Sodium Silicofluoride content of this product reaches more than 99%, far above Sodium Silicofluoride prepared by traditional method, in summary, Sodium Silicofluoride prepared by the present invention has product benefit of fine quality, again because the present invention utilizes the fluorine-containing white residue of trade waste to prepare Sodium Silicofluoride, reduce raw materials cost, fluorine resource in waste is effectively recycled, so the invention enables fluorine-containing white residue to utilize with obtaining efficient low energy.
The present invention is by appropriately adjusting technical parameter in processing step and related process, the mass volume ratio of the fluorine-containing white residue of strict control and sodium hydroxide is 1:1-8, make the reaction of fluorine-containing white residue and sodium hydroxide more abundant, enhance particle Interaction Force, and then Improving The Quality of Products; The present invention carries out solid-liquid separation after product cooling, is conducive to the abundant reaction between material; The present invention adopts deionized water to wash, effective removal product surface ionic impurity, adopt distilled water to wash, can free acid content be reduced, in conjunction with the quality measurements of Sodium Silicofluoride, this product Sodium Silicofluoride content is far above traditional method for making, free acid content about about 0.15%, reach Sodium Silicofluoride one-level quality, dry technology state modulator plays stable product structure, so this product has good quality-guarantee.
Accompanying drawing explanation
Fig. 1 is the process flow sheet that the fluorine-containing white residue of the present invention prepares Sodium Silicofluoride.
Embodiment
Below in conjunction with concrete embodiment, further restriction is done to technical scheme of the present invention, but claimed scope is not only confined to done description.
Embodiment 1
Fluorine-containing white residue prepares a method for Sodium Silicofluoride, and it comprises the following steps:
(1) be that 28% sodium hydroxide carries out mix and blend by fluorine-containing white residue and concentration, be placed in microwave reaction kettle, regulate microwave power to be, under 16kw is the condition of 71 DEG C to material temperature, carry out microwave reaction 6min;
(2) product of microwave reaction being cooled to temperature is after 48 DEG C, through solid-liquid separation, obtains solid and liquid, by solid after dry 3h under 7 washings, temperature are 70 DEG C of conditions, obtains Sodium Silicofluoride.
Described fluorine-containing white residue is the fluoro-gas produced in potassium bearing rock treating processes, through absorbing process, obtains acid solid.
Described fluorine-containing white residue and the mass volume ratio of sodium hydroxide are 1:6, and the mix and blend time is 7min.
Described solid-liquid separation adopts centrifugation.
The described centrifugation time is 13min, and rotating speed is 5500r/min.
In described step (2), liquid is sodium aluminum fluoride, Sodium Fluoride product.
Described washing adopts distilled water water to wash.
In described Sodium Silicofluoride, Sodium Silicofluoride content (butt meter) is 99.3%, and free acid content is 0.13%.
Embodiment 2
Fluorine-containing white residue prepares a method for Sodium Silicofluoride, and it comprises the following steps:
(1) be that 17% sodium hydroxide carries out mix and blend by fluorine-containing white residue and concentration, be placed in microwave reaction kettle, regulate microwave power to be, under 3kw is the condition of 118 DEG C to material temperature, carry out microwave reaction 10min;
(2) product of microwave reaction being cooled to temperature is after 32 DEG C, through solid-liquid separation, obtains solid and liquid, by solid after dry 1h under 3 washings, temperature are 100 DEG C of conditions, obtains Sodium Silicofluoride.
Described fluorine-containing white residue is the fluoro-gas produced in hydrogen fluoride production process, through absorbing process, obtains acid solid.
Described fluorine-containing white residue and the mass volume ratio of sodium hydroxide are 1:6, and the mix and blend time is 55min.
Described solid-liquid separation adopts centrifugation.
The described centrifugation time is 23min, and rotating speed is 7000r/min.
In described step (2), liquid is sodium aluminum fluoride, Sodium Fluoride product.
Described washing adopts distilled water to wash.
In described Sodium Silicofluoride, Sodium Silicofluoride content (butt meter) is 98.6%, and free acid content is 0.2%.
Embodiment 3
Fluorine-containing white residue prepares a method for Sodium Silicofluoride, and it comprises the following steps:
(1) be that 6% sodium hydroxide carries out mix and blend by fluorine-containing white residue and concentration, be placed in microwave reaction kettle, regulate microwave power to be, under 21kw is the condition of 83 DEG C to material temperature, carry out microwave reaction 18min;
(2) product of microwave reaction being cooled to temperature is after 39 DEG C, through solid-liquid separation, obtains solid and liquid, by solid after dry 2.5h under 5 washings, temperature are 58 DEG C of conditions, obtains Sodium Silicofluoride.
Described fluorine-containing white residue is the fluoro-gas that Rock Phosphate (72Min BPL) decomposes and produces in Phosphoric Acid Concentration process, through absorbing process, obtains acid solid.
Described fluorine-containing white residue and the mass volume ratio of sodium hydroxide are 1:1, and the mix and blend time is 7min.
Described solid-liquid separation adopts centrifugation.
The described centrifugation time is 18min, and rotating speed is 8000r/min.
In described step (2), liquid is sodium aluminum fluoride, Sodium Fluoride product.
Described washing adopts deionized water to wash.
In described Sodium Silicofluoride, Sodium Silicofluoride content (butt meter) is 99.6%, and free acid content is 0.17%.
Embodiment 4
Fluorine-containing white residue prepares a method for Sodium Silicofluoride, and it comprises the following steps:
(1) be that 23% sodium hydroxide carries out mix and blend by fluorine-containing white residue and concentration, be placed in microwave reaction kettle, regulate microwave power to be, under 20kw is the condition of 96 DEG C to material temperature, carry out microwave reaction 17min;
(2) product of microwave reaction being cooled to temperature is after 46 DEG C, through solid-liquid separation, obtains solid and liquid, by solid after dry 4.8h under 3 washings, temperature are 76 DEG C of conditions, obtains Sodium Silicofluoride.
Described fluorine-containing white residue is the fluoro-gas produced in Rock Phosphate (72Min BPL) decomposition course, through absorbing process, obtains acid solid.
Described fluorine-containing white residue and the mass volume ratio of sodium hydroxide are 1:1, and the mix and blend time is 62min.
Described solid-liquid separation adopts centrifugation.
The described centrifugation time is 17min, and rotating speed is 9600r/min.
In described step (2), liquid is sodium aluminum fluoride, Sodium Fluoride product.
Described washing adopts distilled water to wash.
In described Sodium Silicofluoride, Sodium Silicofluoride content (butt meter) is 97.9%, and free acid content is 0.11%.
Embodiment 5
Fluorine-containing white residue prepares a method for Sodium Silicofluoride, and it comprises the following steps:
(1) be that 22% sodium hydroxide carries out mix and blend by fluorine-containing white residue and concentration, be placed in microwave reaction kettle, regulate microwave power to be, under 13kw is the condition of 75 DEG C to material temperature, carry out microwave reaction 8min;
(2) product of microwave reaction being cooled to temperature is after 36 DEG C, through solid-liquid separation, obtains solid and liquid, by solid after dry 5h under 5 washings, temperature are 116 DEG C of conditions, obtains Sodium Silicofluoride.
Described fluorine-containing white residue is the fluoro-gas produced in Rock Phosphate (72Min BPL) decomposition, Phosphoric Acid Concentration, potassium bearing rock process, hydrogen fluoride production process, through absorbing process, obtains acid solid.
Described fluorine-containing white residue and the mass volume ratio of sodium hydroxide are 1:7, and the mix and blend time is 43min.
Described solid-liquid separation adopts centrifugation.
The described centrifugation time is 29min, and rotating speed is 6900r/min.
In described step (2), liquid is sodium aluminum fluoride, Sodium Fluoride product.
Described washing adopts deionized water to wash.
In described Sodium Silicofluoride, Sodium Silicofluoride content (butt meter) is 98.2%, and free acid content is 0.15%.
Embodiment 6
Fluorine-containing white residue prepares a method for Sodium Silicofluoride, and it comprises the following steps:
(1) be that 10% sodium hydroxide carries out mix and blend by fluorine-containing white residue and concentration, be placed in microwave reaction kettle, regulate microwave power to be, under 16kw is the condition of 86 DEG C to material temperature, carry out microwave reaction 17min;
(2) product of microwave reaction being cooled to temperature is after 40 DEG C, through solid-liquid separation, obtains solid and liquid, by solid after dry 3h under 8 washings, temperature are 52 DEG C of conditions, obtains Sodium Silicofluoride.
Described fluorine-containing white residue is the fluoro-gas produced in Rock Phosphate (72Min BPL) decomposition, potassium bearing rock process, hydrogen fluoride production process, through absorbing process, obtains acid solid.
Described fluorine-containing white residue and the mass volume ratio of sodium hydroxide are 1:8, and the mix and blend time is 35min.
Described solid-liquid separation adopts centrifugation.
The described centrifugation time is 30min, and rotating speed is 10000r/min.
In described step (2), liquid is sodium aluminum fluoride, Sodium Fluoride product.
Described washing adopts deionized water to wash.
In described Sodium Silicofluoride, Sodium Silicofluoride content (butt meter) is 99%, and free acid content is 0.13%.
Claims (9)
1. fluorine-containing white residue prepares a method for Sodium Silicofluoride, and it comprises the following steps:
(1) be that 5%-30% sodium hydroxide carries out mix and blend by fluorine-containing white residue and concentration, be placed in microwave reaction kettle, regulate microwave power to material temperature to be 70-120 DEG C, carry out microwave reaction 3-60min;
(2) product of microwave reaction being cooled to temperature is after 30-55 DEG C, through solid-liquid separation, obtains solid and liquid, by solid after 1-8 washing, drying step, obtains Sodium Silicofluoride.
2. fluorine-containing white residue according to claim 1 prepares the method for Sodium Silicofluoride, it is characterized in that, described fluorine-containing white residue is absorb fluoro-gas in Rock Phosphate (72Min BPL) decomposition, Phosphoric Acid Concentration, potassium bearing rock process, hydrogen fluoride production process to obtain acid solid.
3. fluorine-containing white residue according to claim 1 prepares the method for Sodium Silicofluoride, it is characterized in that, described fluorine-containing white residue and the mass volume ratio of sodium hydroxide are 1:1-8, and the mix and blend time is 5-70min.
4. fluorine-containing white residue according to claim 1 prepares the method for Sodium Silicofluoride, it is characterized in that, described microwave power is 1-25kw, and the microwave reaction time is 5-20min.
5. fluorine-containing white residue according to claim 1 prepares the method for Sodium Silicofluoride, it is characterized in that, described solid-liquid separation adopts centrifugation.
6. fluorine-containing white residue according to claim 5 prepares the method for Sodium Silicofluoride, it is characterized in that, the described centrifugation time is 10-30min, and rotating speed is 5000-10000r/min.
7. the fluorine-containing white residue according to claim 5 or 6 prepares the method for Sodium Silicofluoride, it is characterized in that, the described centrifugation time is 18min, and rotating speed is 8000r/min.
8. fluorine-containing white residue according to claim 1 prepares the method for Sodium Silicofluoride, it is characterized in that, described washing adopts deionized water or distilled water to wash.
9. fluorine-containing white residue according to claim 1 prepares the method for Sodium Silicofluoride, it is characterized in that, described time of drying is 1-5h, and drying temperature is 50-130 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510400070.0A CN105000563B (en) | 2015-07-09 | 2015-07-09 | A kind of method that fluorine-containing white residue prepares prodan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510400070.0A CN105000563B (en) | 2015-07-09 | 2015-07-09 | A kind of method that fluorine-containing white residue prepares prodan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105000563A true CN105000563A (en) | 2015-10-28 |
| CN105000563B CN105000563B (en) | 2017-08-08 |
Family
ID=54373486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510400070.0A Expired - Fee Related CN105000563B (en) | 2015-07-09 | 2015-07-09 | A kind of method that fluorine-containing white residue prepares prodan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105000563B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105858676A (en) * | 2016-04-11 | 2016-08-17 | 福建瓮福蓝天氟化工有限公司 | Production method for coproducing sodium silicate and sodium fluoride |
| CN105883836A (en) * | 2016-04-11 | 2016-08-24 | 福建瓮福蓝天氟化工有限公司 | Co-production method of sodium metasilicate and sodium fluoride |
| CN113856654A (en) * | 2021-11-20 | 2021-12-31 | 福州大学 | A kind of method that utilizes slag to prepare dye adsorbent |
| CN115818669A (en) * | 2022-11-22 | 2023-03-21 | 大连鼎燕医药化工有限公司 | Recycling method of aromatic hydrogen fluoride diazonium salt pyrolysis fluoro reaction waste |
| CN115869950A (en) * | 2022-12-21 | 2023-03-31 | 贵州大学 | Method for preparing Fenton-like catalyst and byproduct villiaumite product from fluorine-containing silicon slag |
| CN117089230A (en) * | 2023-09-25 | 2023-11-21 | 瓮福（集团）有限责任公司 | Silicate intumescent fire-retardant coating and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103274418A (en) * | 2013-06-27 | 2013-09-04 | 重庆龙瑞化工有限公司 | Method for preparing sodium fluosilicate with industrial wastes, namely fluosilicic acid and sodium chloride |
| CN104445210A (en) * | 2014-11-28 | 2015-03-25 | 嵩县中科孵化器有限公司 | Preparation method of sodium fluosilicate |
| CN104591189A (en) * | 2015-02-10 | 2015-05-06 | 湖南有色氟化学科技发展有限公司 | Recycling method for purifying cryolite waste acid |
-
2015
- 2015-07-09 CN CN201510400070.0A patent/CN105000563B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103274418A (en) * | 2013-06-27 | 2013-09-04 | 重庆龙瑞化工有限公司 | Method for preparing sodium fluosilicate with industrial wastes, namely fluosilicic acid and sodium chloride |
| CN104445210A (en) * | 2014-11-28 | 2015-03-25 | 嵩县中科孵化器有限公司 | Preparation method of sodium fluosilicate |
| CN104591189A (en) * | 2015-02-10 | 2015-05-06 | 湖南有色氟化学科技发展有限公司 | Recycling method for purifying cryolite waste acid |
Non-Patent Citations (1)
| Title |
|---|
| 马正礼: ""氟硅酸钠生产方法的讨论"", 《硫磷设计》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105858676A (en) * | 2016-04-11 | 2016-08-17 | 福建瓮福蓝天氟化工有限公司 | Production method for coproducing sodium silicate and sodium fluoride |
| CN105883836A (en) * | 2016-04-11 | 2016-08-24 | 福建瓮福蓝天氟化工有限公司 | Co-production method of sodium metasilicate and sodium fluoride |
| CN113856654A (en) * | 2021-11-20 | 2021-12-31 | 福州大学 | A kind of method that utilizes slag to prepare dye adsorbent |
| CN115818669A (en) * | 2022-11-22 | 2023-03-21 | 大连鼎燕医药化工有限公司 | Recycling method of aromatic hydrogen fluoride diazonium salt pyrolysis fluoro reaction waste |
| CN115869950A (en) * | 2022-12-21 | 2023-03-31 | 贵州大学 | Method for preparing Fenton-like catalyst and byproduct villiaumite product from fluorine-containing silicon slag |
| CN117089230A (en) * | 2023-09-25 | 2023-11-21 | 瓮福（集团）有限责任公司 | Silicate intumescent fire-retardant coating and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105000563B (en) | 2017-08-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105000563A (en) | Method for preparing sodium fluosilicate by using fluorine-containing silicon slag | |
| CN103332700B (en) | Method for preparing potassium borofluoride through fluorine-containing wastewater | |
| CN102351160B (en) | Method for preparing battery grade lithium dihydrogen phosphate with high-purity lithium carbonate lithium depositing mother solution | |
| CN103395810B (en) | Process for preparation of industrial aluminum sulfate by use of waste acid solution produced during production of expandable graphite | |
| CN109694043A (en) | A kind of method that Waste Sulfuric Acid integrated treatment recycles | |
| CN103359699B (en) | Wet-process phosphoric acid dissolving technology | |
| CN104229854A (en) | Calcium chloride solution producing method | |
| CN104030297A (en) | Novel production technology for producing sodium fluoride and white carbon black in co-production mode by using fluorosilicic acid | |
| CN104495889A (en) | Method for processing potassium-containing rock through industrial microwave | |
| CN106241834B (en) | Sodium bifluoride technology is prepared using phosphorous chemical industry fluosilicic acid as byproduct | |
| CN109761238B (en) | Method for recovering sodium fluosilicate and phosphoric acid by using fluorine-containing and phosphorus-containing waste liquid | |
| CN104692436A (en) | Method for preparing cryolite from coal ash | |
| CN102491342B (en) | Method for preparing white carbon black by using fluosilicic acid gas ammonification process | |
| CN101559959A (en) | Process for producing potassium sulfate and ammonia sulfate by wet decomposing potassium feldspar | |
| CN104150517B (en) | The useless comprehensive utilization production method of a kind of process two | |
| CN104591223A (en) | Method for treating fluosilicate waste residues | |
| CN108250243A (en) | A kind of method of comprehensive utilization of waste hydrochloric acid containing arsenic | |
| CN103738967A (en) | Method for production of sodium fluosilicate from fluorine-containing acidic wastewater | |
| CN109250762A (en) | Method for preparing poly-ferric chloride by using steel hydrochloric acid pickling wastewater | |
| CN103754824A (en) | Method for preparing hydrogen fluoride by using phosphorus fertilizer by-product fluosilicic acid | |
| CN102092719B (en) | Method for producing industrial calcium fluosilicate | |
| CN103708524A (en) | Method for preparing chemical materials by decomposing potassium-bearing rock by fluorosilicic acid cycling method | |
| CN113788564A (en) | Method for treating and comprehensively utilizing mixed wastewater | |
| CN115385341A (en) | Method for preparing potassium fluosilicate by recovering acid wastewater from tantalum-niobium hydrometallurgy | |
| CN105174239A (en) | Method for preparing disodium hydrogen phosphate by means of phosphoric acid obtained by wet process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 554200 Transforming Industrial Park in Wanshan District, Tongren City, Guizhou Province Patentee after: Guizhou Kaisheng Potassium Technology Co.,Ltd. Address before: 554200 Transforming Industrial Park in Wanshan District, Tongren District, Guizhou Province Patentee before: GUIZHOU YUANSHENG POTASSIUM TECHNOLOGY Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170808 |