CN106587089A - Method for preparing potassium fluoborate by recycling mother liquor - Google Patents
Method for preparing potassium fluoborate by recycling mother liquor Download PDFInfo
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- CN106587089A CN106587089A CN201710045199.3A CN201710045199A CN106587089A CN 106587089 A CN106587089 A CN 106587089A CN 201710045199 A CN201710045199 A CN 201710045199A CN 106587089 A CN106587089 A CN 106587089A
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B35/00—Boron; Compounds thereof
- C01B35/06—Boron halogen compounds
- C01B35/063—Tetrafluoboric acid; Salts thereof
- C01B35/066—Alkali metal tetrafluoborates
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- 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
- C01B33/08—Compounds containing halogen
- C01B33/10—Compounds containing silicon, fluorine, and other elements
- C01B33/103—Fluosilicic acid; Salts thereof
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- 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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- 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
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/46—Sulfates
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
Abstract
The invention discloses a method for preparing potassium fluoborate by recycling a mother liquor. The method comprises the steps of injecting new water into a weak acid absorption apparatus of a hydrofluoric acid production system; adjusting the content of fluosilicic acid and hydrofluoric acid in the system; adding solid boric acid into a solution to obtain a silicon dioxide byproduct and a coarse fluoboric acid solution; adding solid sodium sulfate into the coarse fluoboric acid solution to obtain sodium fluosilicate and a refined fluoboric acid solution; adding hydrofluoric acid and potassium sulfate solutions to obtain potassium fluoborate crystals and the mother liquor; and adding calcium carbonate solid into the mother liquor to obtain a calcium sulfate byproduct, wherein one part of the mother liquor is used for absorbing tail gas in the hydrofluoric acid system, one part of the mother liquor is used for dissolving potassium sulfate, and one part of the mother liquor is used for washing silicon dioxide, so that the recycling of the mother liquor of the potassium fluoborate production system is realized. The method realizes recycling of wastewater, solves the problems of difficulty in treating potassium fluoborate wastewater and high cost, is environment-friendly, and has very high economic benefits.
Description
Technical field
The present invention relates to Potassium borofluoride preparing technical field, specifically a kind of mother liquid recycling prepares the side of Potassium borofluoride
Method.
Background technology
Potassium borofluoride also can make abrasive material and glue mainly for the production of the flux of Al-Ti-B alloy, hot weld and brazing in resin
It is used as inserts in the heavy grinding wheel of mixture, is the raw material for preparing boron trifluoride and other villiaumites.At present, the preparation of Potassium borofluoride
Technique can be divided into following several technology paths：1st, fluoboric acid is generated using Fluohydric acid. and boric acid or Borax reaction, fluoboric acid again with
Potassium chloride or potassium carbonate or potassium hydroxide reaction obtain Potassium borofluoride；2nd, fluorine boron is generated using hexafluosilicic acid and boric acid or Borax reaction
Acid, adds the hexafluosilicic acid remained in Sodium Chloride abjection fluoboric acid, is subsequently adding potassium chloride and obtains Potassium borofluoride.Also have one in addition
A little others synthetic technologys, are such as obtained fluoboric acid, its essence using the waste water containing fluohydric acid gas or spent acid with Borax or Borax reaction
It is consistent with technology path 1.
At present, the production waste water of Potassium borofluoride, due to the difficult precipitation of contained fluoboric acid root, the characteristic of slow hydrolysis, is processed
Difficulty is very big.New《Inorganic chemistry emission of industrial pollutants standard》GB31573-2015 will be on July 1st, 2017 to all enterprises
Industry comes into force, and emission limit older standard GB8978-1996 of fluorine is greatly reduced in new standard, and when the time comes Potassium borofluoride manufacturing enterprise will
In the face of more acute challenge.To mitigate the environmental protection pressure of enterprise, sewage disposal expense is reduced, lift level of resource utilization, ground
The method for preparing Potassium borofluoride for sending out mother liquid recycling a kind of is problem demanding prompt solution of the present invention.
The content of the invention
Present invention aim to solve current Potassium borofluoride production wastewater treatment difficulty greatly, high cost, to environment
The problems such as pollution, there is provided a kind of method for preparing Potassium borofluoride of mother liquid recycling, present invention achieves the circulation profit of waste water
With, Potassium borofluoride wastewater treatment difficulty is solved, the high problem of processing cost improves the overall economy quality of technique.
The method that a kind of mother liquid recycling of the present invention prepares Potassium borofluoride, comprises the following steps：
（1）New water is injected in the weak acid absorption plant of Acid of Hydrofluoric Acid Production system, the content for treating hexafluosilicic acid in system is 150-
450g/L, the content of Fluohydric acid. are after 5-100g/L, solution to be put in absorbing liquid storage tank；
（2）Absorbing liquid in absorbing liquid storage tank is pumped in leaching tanks, 80-100 DEG C is preheated to and is kept constant temperature, open stirring,
Add solid boric acid, make fluorine in leachate, boron element mass ratio be 6:1-11:1, charging reacts 0.5-3h after terminating, will be upper
Leachate filtration is stated, thick fluoborate solution and precipitation of silica is obtained, as side-product after precipitation of silica is scrubbed, is washed
Liquid and thick fluoborate solution proceed to refinery pit；
（3）Refinery pit stirring is opened, it is 12-24g/L to add solid sodium sulfate to make the content of sodium in solution in refinery pit, is reacted
Filter after 0.5-1h, obtain prodan precipitation and smart fluoborate solution, after testing, the purity of prodan is higher than 98%；
（4）Fluohydric acid. is added to allocate into solution fluorine in smart fluoborate solution, the mass ratio of boron element is 6:1-11:1, then will
Solution proceeds to synth sink；
（5）New water is injected in potassium sulfate dissolving tank to dissolve potassium sulfate, the concentration to potassium sulfate solution is 130-198g/
L, solution temperature is 40-80 DEG C；
（6）Synth sink stirring is opened, above-mentioned potassium sulfate solution is added into groove, the analysis of Potassium borofluoride crystal is had in the process
Go out, stop adding potassium sulfate solution when separating out without crystal, by slurry filtration, by the ointment being filtrated to get Jing after washing, drying
Potassium borofluoride product is obtained, mother solution proceeds to neutralization chamber, after testing, the purity of Potassium borofluoride is higher than 98%；
（7）The pH=7.0 of calcium carbonate solid to mother solution is added in neutralization chamber, calcium sulfate side-product is filtrated to get, during filtrate proceeds to
With liquid storage tank, a part is used as Fluohydric acid. Systemic absorption tail gas, a part of to be used as dissolving potassium sulfate, and a part is used as to wash dioxy
SiClx；
（8）In Fluohydric acid. weak acid absorption plant, step（7）In sodium sulfate, Potassium borofluoride and calcium sulfate and tail gas in filtrate
Hexafluosilicic acid and hydrogen fluoride reaction generate containing a small amount of calcium fluoride, potassium fluosilicate prodan precipitation, treat fluorine silicon in solution
The content of acid reaches 150-450g/L, hydrogen fluoride content and reaches 5-100g/L, and Jing after solid-liquid separation, filtrate proceeds to absorbing liquid storage tank
In, used as side-product, after testing, the purity of prodan is higher than 95% to solid prodan；
（9）Absorbing liquid in absorbing liquid storage tank is pumped directly into leaching tanks when synthesizing next time, it is achieved thereby that Potassium borofluoride life
Produce recycling for the systematic stock solution.
Boric acid, sodium sulfate, potassium sulfate, Fluohydric acid. and Calcium Carbonate used in the present invention is the commercially available technical grade of buying
Chemical reagent.
The present invention chemical principle be：Containing hexafluosilicic acid and hydrogen in weak acid absorption plant in Acid of Hydrofluoric Acid Production system
Fluoric acid, hexafluosilicic acid and Fluohydric acid. see below formula with acid reaction（1）With（2）,
2H2SiF6+3H3BO3 = 3HBF4+2SiO2↓+5H2O （1）
4HF+ H3BO3 = HBF4+3H2O （2）
Thick fluoborate solution and silicon dioxide side-product are generated, the hexafluosilicic acid that unreacted is complete in solution continues and sodium sulfate reaction,
See below formula（3）,
H2SiF6+Na2SO4 = Na2SiF6↓+H2SO4 （3）
Reaction obtains the prodan side-product of high purity 98% and smart fluoborate solution, fluoboric acid and sulphuric acid nak response, sees below
Formula（4）,
2HBF4+K2SO4 = 2KBF4↓+H2SO4（4）
Reaction obtains Potassium borofluoride and sulfuric acid solution, and sulfuric acid solution occurs neutralization reaction, sees below formula with Calcium Carbonate（5）,
H2SO4+CaCO3 = CaSO4↓+H2O+CO2↑ （5）
Calcium sulfate, sodium sulfate and the Potassium borofluoride dissolved in solution after reaction respectively with tail gas in fluohydric acid gas and hexafluosilicic acid it is anti-
Should, the precipitation of the prodan containing a small amount of calcium fluoride and potassium fluosilicate is generated, see below formula（6）-（8）,
CaSO4+2HF = CaF2↓+H2SO4（6）
H2SiF6+Na2SO4 = Na2SiF6↓+H2SO4 （7）
H2SiF6+2KBF4 = K2SiF6↓+2HBF4（8）
The present invention has following advantage：
（1）The present invention proposes the new approaches of Potassium borofluoride production wastewater treatment, by the sulfur for selecting to be easily removed acid ion
Hydrochlorate provides corresponding cation for system, the sulfate radical being more than in neutralization procedure removing system so as to maintain reasonable level,
Solve the problems, such as that anion adds up after existing process Recycling Mother Solution；
（2）Neutralizer is supporting with Fluohydric acid. weak acid absorption plant, by sodium, potassium, calcium ion unnecessary in deposition removal system,
Make it maintain reasonable level, solve the problems, such as that existing process mother solution cation adds up, realize recycling for waste water, solve
Potassium borofluoride wastewater treatment of having determined is difficult, the problem that processing cost is high；
（3）Recycle because waste water is realized, the ion in waste water is recycled, while obtain that there is industrial application
The side-products such as silicon dioxide, prodan, the calcium sulfate of value, improve the yield of product, it is to avoid pollution to environment, whole
The economy of individual technique is obviously improved.
Description of the drawings
Fig. 1 is the process chart of the present invention.
Specific embodiment
Embodiment 1
Referring to Fig. 1, the method that a kind of mother liquid recycling of the present embodiment prepares Potassium borofluoride comprises the following steps：
（1）Acid of Hydrofluoric Acid Production system after reaction, preliminary clearning, purification, condensation, sulfuric acid absorption, in weak acid absorption plant
Tail gas absorption is carried out, in weak acid absorption plant new water is injected, the content for treating hexafluosilicic acid in system is that 205g/L, Fluohydric acid. contain
After measuring as 45g/L, solution is put in absorbing liquid storage tank；
（2）Absorbing liquid in absorbing liquid storage tank is pumped in leaching tanks, 91 DEG C is preheated to and is kept constant temperature, open stirring, added
Solid boric acid to the mass ratio of fluorine in solution, boron element is 8:1, charging reacts 2h after terminating, and above-mentioned leachate is filtered, and obtains
Thick fluoborate solution and precipitation of silica, as side-product after precipitation of silica is scrubbed, washing liquid and thick fluoborate solution
Proceed to refinery pit；
（3）Refinery pit stirring is opened, it is 18g/L to add solid sodium sulfate to make the sodium content in solution, is filtered after reaction 1h, is obtained
Prodan is precipitated and smart fluoborate solution, and after testing, the purity of prodan is 98.3%；
（4）Fluohydric acid. is added to allocate into solution fluorine in smart fluoborate solution, the mass ratio of boron element is 8:1, then by solution
Proceed to synth sink；
（5）New water is injected in potassium sulfate dissolving tank to dissolve potassium sulfate, the concentration to potassium sulfate solution is 165g/L, molten
Solution temperature is 70 DEG C；
（6）Synth sink stirring is opened, above-mentioned potassium sulfate solution is added into groove, the analysis of Potassium borofluoride crystal is had in the process
Go out, potassium sulfate solution is added to and separated out without crystal, is filtered, the ointment being filtrated to get is dried after washing and obtains Potassium borofluoride product
Product, mother solution proceeds to neutralization chamber, and after testing, the purity of Potassium borofluoride is 98.4%；
（7）The pH=7.0 of calcium carbonate solid to solution is added in neutralization chamber, slurry filtration is obtained into calcium sulfate side-product, mother solution
Neutralizer storage tank is proceeded to, a part is used as Fluohydric acid. Systemic absorption tail gas, and a part is used as dissolving potassium sulfate, and a part is used as to wash
Wash silicon dioxide；
（8）In Fluohydric acid. weak acid absorption plant, step（7）Sodium sulfate, Potassium borofluoride and calcium sulfate in filtrate respectively with tail
Hexafluosilicic acid and hydrogen fluoride reaction in gas, generates the prodan precipitation containing a small amount of calcium fluoride, potassium fluosilicate, treats fluorine in solution
The content of silicic acid reaches 150-450g/L, hydrogen fluoride content and reaches 5-100g/L, and Jing after solid-liquid separation, filtrate proceeds to absorbing liquid storage
In groove, used as side-product, after testing, the purity of prodan is 95.5% to solid prodan；
（9）Absorbing liquid in absorbing liquid storage tank is pumped directly into leaching tanks when synthesizing next time, it is achieved thereby that Potassium borofluoride life
Produce recycling for the systematic stock solution.
Embodiment 2
Referring to Fig. 1, the method that a kind of mother liquid recycling of the present embodiment prepares Potassium borofluoride comprises the following steps：
（1）Acid of Hydrofluoric Acid Production system after reaction, preliminary clearning, purification, condensation, sulfuric acid absorption, in weak acid absorption plant
Tail gas absorption is carried out, in weak acid absorption plant new water is injected, the content for treating hexafluosilicic acid in system is that 150g/L, Fluohydric acid. contain
After measuring as 5g/L, solution is put in absorbing liquid storage tank；
（2）Absorbing liquid in absorbing liquid storage tank is pumped in leaching tanks, 100 DEG C is preheated to and is kept constant temperature, open stirring, added
Solid boric acid to the mass ratio of fluorine in solution, boron element is 11:1, charging reacts 3h after terminating, and above-mentioned leachate is filtered, and obtains
To thick fluoborate solution and precipitation of silica, as side-product after precipitation of silica is scrubbed, washing liquid and thick fluoboric acid are molten
Liquid proceeds to refinery pit；
（3）Refinery pit stirring is opened, it is 24g/L to add solid sodium sulfate to make the sodium content in solution, is filtered after reaction 1h, is obtained
Prodan is precipitated and smart fluoborate solution, and after testing, the purity of prodan is 98.1%；
（4）Fluohydric acid. is added to allocate into solution fluorine in smart fluoborate solution, the mass ratio of boron element is 11:1, then by solution
Proceed to synth sink；
（5）New water is injected in potassium sulfate dissolving tank to dissolve potassium sulfate, the concentration to potassium sulfate solution is 198g/L, molten
Solution temperature is 80 DEG C；
（6）Synth sink stirring is opened, above-mentioned potassium sulfate solution is added into groove, the analysis of Potassium borofluoride crystal is had in the process
Go out, potassium sulfate solution is added to and separated out without crystal, is filtered, the ointment being filtrated to get is dried after washing and obtains Potassium borofluoride product
Product, mother solution proceeds to neutralization chamber, and after testing, the purity of Potassium borofluoride is 98.1%；
（7）The pH=7.0 of calcium carbonate solid to solution is added in neutralization chamber, slurry filtration is obtained into calcium sulfate side-product, mother solution
Neutralizer storage tank is proceeded to, a part is used as Fluohydric acid. system tail gas absorption, and a part is used as dissolving potassium sulfate, and a part is used as to wash
Wash silicon dioxide；
（8）In Fluohydric acid. weak acid absorption plant, step（7）Sodium sulfate, Potassium borofluoride and calcium sulfate in filtrate respectively with tail
Hexafluosilicic acid and hydrogen fluoride reaction in gas, generates the prodan precipitation containing a small amount of calcium fluoride, potassium fluosilicate, treats fluorine in solution
The content of silicic acid reaches 150-450g/L, hydrogen fluoride content and reaches 5-100g/L, and Jing after solid-liquid separation, filtrate proceeds to absorbing liquid storage
In groove, used as side-product, after testing, the purity of prodan is 95.3% to solid prodan；
（9）Absorbing liquid in absorbing liquid storage tank is pumped directly into leaching tanks when synthesizing next time, it is achieved thereby that Potassium borofluoride life
Produce recycling for the systematic stock solution.
Embodiment 3
Referring to Fig. 1, the method that a kind of mother liquid recycling of the present embodiment prepares Potassium borofluoride comprises the following steps：
（1）Acid of Hydrofluoric Acid Production system after reaction, preliminary clearning, purification, condensation, sulfuric acid absorption, in weak acid absorption plant
Tail gas absorption is carried out, in weak acid absorption plant new water is injected, the content for treating hexafluosilicic acid in system is that 450g/L, Fluohydric acid. contain
After measuring as 100g/L, solution is put in absorbing liquid storage tank；
（2）Absorbing liquid in absorbing liquid storage tank is pumped in leaching tanks, 80 DEG C is preheated to and is kept constant temperature, open stirring, added
Solid boric acid to the mass ratio of fluorine in solution, boron element is 6:1, charging reacts 0.5h after terminating, and above-mentioned leachate is filtered, and obtains
To thick fluoborate solution and precipitation of silica, as side-product after precipitation of silica is scrubbed, washing liquid and thick fluoboric acid are molten
Liquid proceeds to refinery pit；
（3）Refinery pit stirring is opened, it is 12g/L to add solid sodium sulfate to make the sodium content in solution, is filtered after reaction 0.5h, is obtained
To prodan precipitation and smart fluoborate solution, after testing, the purity of prodan is 98.4%；
（4）Fluohydric acid. is added to allocate into solution fluorine in smart fluoborate solution, the mass ratio of boron element is 6:1, then by solution
Proceed to synth sink；
（5）New water is injected in potassium sulfate dissolving tank to dissolve potassium sulfate, the concentration to potassium sulfate solution is 130g/L, molten
Solution temperature is 40 DEG C；
（6）Synth sink stirring is opened, above-mentioned potassium sulfate solution is added into groove, the analysis of Potassium borofluoride crystal is had in the process
Go out, potassium sulfate solution is added to and separated out without crystal, is filtered, the ointment being filtrated to get is dried after washing and obtains Potassium borofluoride product
Product, mother solution proceeds to neutralization chamber, and after testing, the purity of Potassium borofluoride is 98.2%；
（7）The pH=7.0 of calcium carbonate solid to solution is added in neutralization chamber, slurry filtration is obtained into calcium sulfate side-product, mother solution
Neutralizer storage tank is proceeded to, a part is used as Fluohydric acid. system tail gas absorption, and a part is used as dissolving potassium sulfate, and a part is used as to wash
Wash silicon dioxide；
（8）In Fluohydric acid. weak acid absorption plant, step（7）In sodium sulfate, Potassium borofluoride and calcium sulfate and tail gas in filtrate
Hexafluosilicic acid and hydrogen fluoride reaction generate containing a small amount of calcium fluoride, potassium fluosilicate prodan precipitation, treat hexafluosilicic acid in solution
Content reach 150-450g/L, hydrogen fluoride content and reach 5-100g/L, Jing after solid-liquid separation, filtrate proceeds to absorbing liquid storage tank
In, used as side-product, after testing, the purity of prodan is 95.1% to solid prodan；
（9）Absorbing liquid in absorbing liquid storage tank is pumped directly into leaching tanks when synthesizing next time, it is achieved thereby that Potassium borofluoride life
Produce recycling for the systematic stock solution.
Claims (1)
1. a kind of method that mother liquid recycling prepares Potassium borofluoride, it is characterised in that comprise the following steps：
（1）New water is injected in the weak acid absorption plant of Acid of Hydrofluoric Acid Production system, the content for treating hexafluosilicic acid in system is 150-
450g/L, the content of Fluohydric acid. are after 5-100g/L, solution to be put in absorbing liquid storage tank；
（2）Absorbing liquid in absorbing liquid storage tank is pumped in leaching tanks, 80-100 DEG C is preheated to and is kept constant temperature, open stirring,
Add solid boric acid, make fluorine in leachate, boron element mass ratio be 6:1-11:1, charging reacts 0.5-3h after terminating, will be upper
Leachate filtration is stated, thick fluoborate solution and precipitation of silica is obtained, as side-product after precipitation of silica is scrubbed, is washed
Liquid and thick fluoborate solution proceed to refinery pit；
（3）Refinery pit stirring is opened, it is 12-24g/L to add solid sodium sulfate to make the content of sodium in solution in refinery pit, is reacted
Filter after 0.5-1h, obtain prodan precipitation and smart fluoborate solution, after testing, the purity of prodan is higher than 98%；
（4）Fluohydric acid. is added to allocate into solution fluorine in smart fluoborate solution, the mass ratio of boron element is 6:1-11:1, then will
Solution proceeds to synth sink；
（5）New water is injected in potassium sulfate dissolving tank to dissolve potassium sulfate, the concentration to potassium sulfate solution is 130-198g/
L, solution temperature is 40-80 DEG C；
（6）Synth sink stirring is opened, above-mentioned potassium sulfate solution is added into groove, the analysis of Potassium borofluoride crystal is had in the process
Go out, stop adding potassium sulfate solution when separating out without crystal, by slurry filtration, by the ointment being filtrated to get Jing after washing, drying
Potassium borofluoride product is obtained, mother solution proceeds to neutralization chamber, after testing, the purity of Potassium borofluoride is higher than 98%；
（7）The pH=7.0 of calcium carbonate solid to mother solution is added in neutralization chamber, calcium sulfate side-product is filtrated to get, during filtrate proceeds to
With liquid storage tank, a part is used as Fluohydric acid. Systemic absorption tail gas, a part of to be used as dissolving potassium sulfate, and a part is used as to wash dioxy
SiClx；
（8）In Fluohydric acid. weak acid absorption plant, step（7）In sodium sulfate, Potassium borofluoride and calcium sulfate and tail gas in filtrate
Hexafluosilicic acid and hydrogen fluoride reaction generate containing a small amount of calcium fluoride, potassium fluosilicate prodan precipitation, treat fluorine silicon in solution
The content of acid reaches 150-450g/L, hydrogen fluoride content and reaches 5-100g/L, and Jing after solid-liquid separation, filtrate proceeds to absorbing liquid storage tank
In, used as side-product, after testing, the purity of prodan is higher than 95% to solid prodan；
（9）Absorbing liquid in absorbing liquid storage tank is pumped directly into leaching tanks when synthesizing next time, it is achieved thereby that Potassium borofluoride life
Produce recycling for the systematic stock solution.
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Cited By (3)
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|---|---|---|---|---|
| CN107902665A (en) * | 2017-11-01 | 2018-04-13 | 江西省东沿药业有限公司 | A kind of fluorine method for treating waste liquid |
| CN109110773A (en) * | 2018-09-07 | 2019-01-01 | 昆山市富乐化工有限公司 | The production and processing method of fluoboric acid |
| CN113979442A (en) * | 2021-09-30 | 2022-01-28 | 深圳市考拉生态科技有限公司 | Dissolution inhibiting method for purifying quartz from fluorine-containing solid waste |
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| CN101289195A (en) * | 2007-04-19 | 2008-10-22 | 多氟多化工股份有限公司 | Process for preparing potassium borofluoride and co-production of white carbon black and sodium fluosilicate |
| CN101397141A (en) * | 2007-09-25 | 2009-04-01 | 上海明煌实业发展有限公司 | Method for preparing potassium fluoborate |
| CN105731482A (en) * | 2016-01-15 | 2016-07-06 | 江苏新泰材料科技股份有限公司 | Method for preparing potassium fluoborate from fluorine-containing wastewater |
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2017
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US2796323A (en) * | 1954-06-30 | 1957-06-18 | Allan R Eberle | Conversion of dimethyl ether boron trifluoride complex to potassium fluoborate |
| CN101289195A (en) * | 2007-04-19 | 2008-10-22 | 多氟多化工股份有限公司 | Process for preparing potassium borofluoride and co-production of white carbon black and sodium fluosilicate |
| CN101397141A (en) * | 2007-09-25 | 2009-04-01 | 上海明煌实业发展有限公司 | Method for preparing potassium fluoborate |
| CN105731482A (en) * | 2016-01-15 | 2016-07-06 | 江苏新泰材料科技股份有限公司 | Method for preparing potassium fluoborate from fluorine-containing wastewater |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107902665A (en) * | 2017-11-01 | 2018-04-13 | 江西省东沿药业有限公司 | A kind of fluorine method for treating waste liquid |
| CN109110773A (en) * | 2018-09-07 | 2019-01-01 | 昆山市富乐化工有限公司 | The production and processing method of fluoboric acid |
| CN113979442A (en) * | 2021-09-30 | 2022-01-28 | 深圳市考拉生态科技有限公司 | Dissolution inhibiting method for purifying quartz from fluorine-containing solid waste |
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| CN106587089B (en) | 2018-08-03 |
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