CN105731536A - Method for preparing potassium fluozirconate by utilizing fluorine-containing wastewater - Google Patents
Method for preparing potassium fluozirconate by utilizing fluorine-containing wastewater Download PDFInfo
- Publication number
- CN105731536A CN105731536A CN201610023725.1A CN201610023725A CN105731536A CN 105731536 A CN105731536 A CN 105731536A CN 201610023725 A CN201610023725 A CN 201610023725A CN 105731536 A CN105731536 A CN 105731536A
- Authority
- CN
- China
- Prior art keywords
- solid
- hours
- heating
- potassium fluorozirconate
- potassium
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G25/00—Compounds of zirconium
- C01G25/006—Compounds containing, besides zirconium, two or more other elements, with the exception of oxygen or hydrogen
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a method for preparing potassium fluozirconate by utilizing fluorine-containing wastewater. The method comprises the following steps of: 1) pumping the fluorine-containing wastewater into acidolysis equipment, adding zirconium dioxide, wherein the mass ratio of the fluorine-containing wastewater to zirconium dioxide is 3:1, reacting at normal temperature and pressure, and standing for 12 hours; 2) taking supernatant liquor of the solution, pumping into a plastic container by virtue of a filter pump, adding potassium hydroxide at normal temperature and pressure, regulating pH value to be 2.5-3, and continuously standing for 12 hours, so that suspension containing potassium fluozirconate solid is generated; 3) centrifuging the suspension by virtue of a centrifugal machine, and separating the potassium fluozirconate solid and residual mother liquor; and 4) primarily heating and drying the potassium fluozirconate solid for 4 hours at the heating temperature of 80-150 DEG C, and heating and drying the potassium fluozirconate solid subjected to primary heating and drying by adopting a double cone dryer at the heating temperature of 80-150 DEG C, wherein the heating time is 10 hours, so that the potassium fluozirconate solid finished product is obtained finally. The method disclosed by the invention has the advantages that the fluorine-containing wastewater is reasonably utilized for preparing potassium fluozirconate, environmental pollution can be reduced, and the production cost is reduced.
Description
Technical field
The present invention relates to a kind of method that fluoride waste prepares potassium fluorozirconate.
Background technology
Potassium fluorozirconate, molecular formula K2 (ZrF6), molecular weight 283.40, colourless or white monoclinic system crystal, relative density 3.48.Fusing point 840 DEG C.It is dissolved in water, insoluble in ammonia.Stable in the air, nonhygroscopic, not weightless time fervid.Crystallization is harder, poisonous.Self can not burn.By pyrolytic decomposition releasing poisonous gas.There is corrosivity.
Potassium fluorozirconate is used as to produce the raw material of metal zirconium and compound thereof, is also used for the production etc. of appliance material, refractory material, electric vacuum technology material, pottery and glass.
Potassium fluorozirconate traditional processing technology many uses Fluohydric acid. potassium chloride method so that the production cost of potassium fluorozirconate is affected relatively big by raw material, lacks the market competitiveness.
Appropriate application company fluoride waste prepares potassium fluorozirconate, it is possible to reduce environmental pollution, reduces production cost.
Summary of the invention
It is an object of the invention to provide a kind of method that fluoride waste prepares potassium fluorozirconate, the method Appropriate application fluoride waste prepares potassium fluorozirconate, it is possible to reduce environmental pollution, reduces production cost.
To achieve these goals, the technical scheme is that the method that a kind of fluoride waste of design prepares potassium fluorozirconate, it is characterised in that comprise the steps:
1) fluoride waste being squeezed into acidolysis equipment, add zirconium dioxide, the mass ratio of fluoride waste and zirconium dioxide is 3:1, reacts, and stand 12 hours under normal temperature and pressure；
2) take the above-mentioned solution supernatant, squeeze in plastic containers by filter pump, under normal temperature and pressure, add potassium hydroxide, regulate pH value between 2.5 ~ 3, continue to stand 12 hours, generate the suspension containing potassium fluorozirconate solid；
3) by above-mentioned suspension through centrifuge, potassium fluorozirconate solid and residue mother solution are isolated；
4) above-mentioned potassium fluorozirconate solid is carried out the preliminary heat drying of 4 hours, heating-up temperature is 80 ~ 150 DEG C, double-cone dryer is adopted to be thermally dried the potassium fluorozirconate solid of preliminary for above-mentioned warp heat drying again, heating-up temperature 80 ~ 150 DEG C, heat time heating time is 10 hours, final acquisition potassium fluorozirconate finished product.
Described fluoride waste contains the fluohydric acid gas of 12% and the hydrochloric acid of 14%.
Advantages of the present invention and having the beneficial effects that: providing a kind of method that fluoride waste prepares potassium fluorozirconate, the method Appropriate application fluoride waste prepares potassium fluorozirconate, it is possible to reduce environmental pollution, reduces production cost.
Detailed description of the invention
Below in conjunction with embodiment, the specific embodiment of the present invention is further described.Following example are only for clearly illustrating technical scheme, and can not limit the scope of the invention with this.
Embodiment
A kind of fluoride waste prepares the method for potassium fluorozirconate, it is characterised in that comprise the steps:
1) fluoride waste being squeezed into acidolysis equipment, add zirconium dioxide, the mass ratio of fluoride waste and zirconium dioxide is 3:1, reacts, and stand 12 hours under normal temperature and pressure；
2) take the above-mentioned solution supernatant, squeeze in plastic containers by filter pump, under normal temperature and pressure, add potassium hydroxide, regulate pH value between 2.5 ~ 3, continue to stand 12 hours, generate the suspension containing potassium fluorozirconate solid；
3) by above-mentioned suspension through centrifuge, potassium fluorozirconate solid and residue mother solution are isolated；
4) above-mentioned potassium fluorozirconate solid is carried out the preliminary heat drying of 4 hours, heating-up temperature is 100 DEG C, then adopts double-cone dryer to be thermally dried the potassium fluorozirconate solid of preliminary for above-mentioned warp heat drying, heating-up temperature 100 DEG C, heat time heating time is 10 hours, final acquisition potassium fluorozirconate finished product.
Described fluoride waste contains the fluohydric acid gas of 12% and the hydrochloric acid of 14%.
The above is only the preferred embodiment of the present invention; it should be pointed out that, for those skilled in the art, under the premise without departing from the technology of the present invention principle; can also making some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (2)
1. the method that a fluoride waste prepares potassium fluorozirconate, it is characterised in that comprise the steps:
1) fluoride waste being squeezed into acidolysis equipment, add zirconium dioxide, the mass ratio of fluoride waste and zirconium dioxide is 3:1, reacts, and stand 12 hours under normal temperature and pressure；
2) take the above-mentioned solution supernatant, squeeze in plastic containers by filter pump, under normal temperature and pressure, add potassium hydroxide, regulate pH value between 2.5 ~ 3, continue to stand 12 hours, generate the suspension containing potassium fluorozirconate solid；
3) by above-mentioned suspension through centrifuge, potassium fluorozirconate solid and residue mother solution are isolated；
4) above-mentioned potassium fluorozirconate solid is carried out the preliminary heat drying of 4 hours, heating-up temperature is 80 ~ 150 DEG C, double-cone dryer is adopted to be thermally dried the potassium fluorozirconate solid of preliminary for above-mentioned warp heat drying again, heating-up temperature 80 ~ 150 DEG C, heat time heating time is 10 hours, final acquisition potassium fluorozirconate finished product.
2. the method that a kind of fluoride waste according to claim 1 prepares potassium fluorozirconate, it is characterised in that contain the fluohydric acid gas of 12% and the hydrochloric acid of 14% in described fluoride waste.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610023725.1A CN105731536A (en) | 2016-01-15 | 2016-01-15 | Method for preparing potassium fluozirconate by utilizing fluorine-containing wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610023725.1A CN105731536A (en) | 2016-01-15 | 2016-01-15 | Method for preparing potassium fluozirconate by utilizing fluorine-containing wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105731536A true CN105731536A (en) | 2016-07-06 |
Family
ID=56246197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610023725.1A Pending CN105731536A (en) | 2016-01-15 | 2016-01-15 | Method for preparing potassium fluozirconate by utilizing fluorine-containing wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105731536A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110092417A (en) * | 2019-04-17 | 2019-08-06 | 南通金星氟化学有限公司 | A kind of preparation method of potassium fluorozirconate |
| CN111689517A (en) * | 2020-05-29 | 2020-09-22 | 福建省漳平市九鼎氟化工有限公司 | Method for preparing potassium fluozirconate and co-producing polyaluminium chloride |
-
2016
- 2016-01-15 CN CN201610023725.1A patent/CN105731536A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 欧育湘等: "《阻燃剂》", 30 September 2009 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110092417A (en) * | 2019-04-17 | 2019-08-06 | 南通金星氟化学有限公司 | A kind of preparation method of potassium fluorozirconate |
| CN111689517A (en) * | 2020-05-29 | 2020-09-22 | 福建省漳平市九鼎氟化工有限公司 | Method for preparing potassium fluozirconate and co-producing polyaluminium chloride |
| CN111689517B (en) * | 2020-05-29 | 2022-09-20 | 福建省漳平市九鼎氟化工有限公司 | Method for preparing potassium fluozirconate and co-producing polyaluminium chloride |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105731482A (en) | Method for preparing potassium fluoborate from fluorine-containing wastewater | |
| CN104117219B (en) | Method for concentration and the special purpose device of sulfate process titanium dioxide titanium liquid | |
| CN107611433B (en) | Method for preparing battery-grade iron phosphate by using heavy metal sludge | |
| CN105731536A (en) | Method for preparing potassium fluozirconate by utilizing fluorine-containing wastewater | |
| CN106632080A (en) | Flucytosine manufacturing process | |
| CN102161505A (en) | Recycling preparation process of potassium fluotitanate | |
| CN102963971B (en) | Method for recycling potassium chloride and organisms from initiator production waste liquid | |
| CN103387487A (en) | Method for producing calcium formate from industrial waste liquid | |
| CN106976923A (en) | A kind of process of salicylonitrile wastewater treatment | |
| CN101607892A (en) | The production method of Sodium Citrate | |
| CN107954827A (en) | A kind of technique of hexachlorobutadiene conversion carbon trichloride | |
| CN101734667A (en) | Process for producing precipitated white carbon black by silicon tetrachloride | |
| CN101955233A (en) | Method for producing ferrous sulphate monohydrate | |
| CN107311892A (en) | A kind of preparation method of smart sulfanilamide (SN) | |
| CN105329920A (en) | Method for joint production of potassium sulphate and calcium chloride dihydrate | |
| CN103086421B (en) | The oxidation sludge that utilization produces when producing stannous sulfate and the anode sludge prepare the method for sodium stannate | |
| CN104528770A (en) | Mirabilite dehydration method based on gas-liquid direct heat exchange | |
| CN111825120A (en) | Method for preparing battery-grade manganese sulfate from manganese metal | |
| CN109748443B (en) | Treatment process of waste liquid generated in synthesis of 4, 6-dichloropyrimidine | |
| CN101549880B (en) | Preparation method of anti-caking strontium nitrate | |
| CN105668621A (en) | Method for preparing potassium fluotitanate from fluorine-containing wastewater | |
| CN101376519A (en) | Method for preparing barium fluoride | |
| CN102181070B (en) | Circulating evaporation process for cellulose ether producing solvent | |
| CN105481771B (en) | A kind of preparation process of ozagrel intermediate (E) -4- (imidazolyl methyl) methyl cinnamate | |
| CN112299453A (en) | Preparation method of high-purity lithium fluoride |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160706 |
|
| RJ01 | Rejection of invention patent application after publication |