CN203065177U - Equipment assembly for preparing superfine tungsten trioxide - Google Patents
Equipment assembly for preparing superfine tungsten trioxide Download PDFInfo
- Publication number
- CN203065177U CN203065177U CN 201220595493 CN201220595493U CN203065177U CN 203065177 U CN203065177 U CN 203065177U CN 201220595493 CN201220595493 CN 201220595493 CN 201220595493 U CN201220595493 U CN 201220595493U CN 203065177 U CN203065177 U CN 203065177U
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- equipment
- tungstic oxide
- combination
- prepares
- autoclave
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Abstract
The utility model relates to an equipment assembly for preparing a superfine tungsten trioxide, belonging to the preparation technology for nonferrous metal oxides. The equipment assembly for preparing the superfine tungsten trioxide comprises a mixer 1, a high pressure reactor 2, a centrifuge 3, a concentrator 4, a crystallizing tank 5, a high pressure reactor 6, a centrifuge 7, a storage tank 8, a concentrator 9, a roasting furnace 10 and the like. The equipment assembly has the beneficial effects of short process flow, mild conditions, no need of complex equipment and low energy consumption. The tungsten trioxide product is higher in purity and thin in granularity; the utilization rate of a sodium tungstate raw material is high; and a mother solution is recycled, so that the environmental pollution can be lightened.
Description
Technical field
The utility model relates to a kind of equipment combination for preparing ultra-fine tungstic oxide, belongs to the nonferrous metal oxides preparing technical field.
Background technology
Tungstic oxide is mainly used in calcining reduction and produces tungsten powder and tungsten carbide powder, and then for the production of high-meltiing alloy and hart metal product, as the manufacturing of cutter and mould.Simultaneously also can be used for making pure tungsten goods, tungsten rod, tungsten filament, tungsten electrode etc.Tungstic oxide also can be used as the shielding material of radiation and the tinting material of yellow ceramic ware.In the shipping industry, tungstic oxide also is used as important antifouling paint and coating material.Generally produce tungstic oxide by the method for roasting ammonium tungstate in the industry, but more and more can not satisfy service requirements because the tungstic oxide granularity is too thick.For effective particle fineness that improves tungstic oxide, thereby improve its application performance, be necessary to design a kind of equipment combination for preparing ultra-fine tungstic oxide.
Summary of the invention
The purpose of this utility model is to provide a kind of equipment combination for preparing ultra-fine tungstic oxide, specifically is achieved by the following scheme: a kind of equipment combination for preparing ultra-fine tungstic oxide comprises that crystal seed prepares equipment, tungstic oxide prepares equipment and mother liquor equipment for reclaiming.The crystallizer 5 that crystal seed prepares in the equipment links to each other with the autoclave 6 that tungstic oxide prepares in the equipment, and the storage tank 8 in the mother liquor equipment for reclaiming links to each other with the whizzer 7 that tungstic oxide prepares in the equipment.The order of connection that crystal seed prepares the equipment combination is: mixer 1 → autoclave 2 → whizzer 3 → thickener 4 → crystallizer 5 → autoclave 6.The order of connection that tungstic oxide prepares the equipment combination is: autoclave 6 → whizzer 7 → stoving oven 10.The order of connection of mother liquor equipment for reclaiming combination is: storage tank 8 → thickener 9 → autoclave 6.
The effect that the utility model is useful is: technical process is short, and mild condition does not need complex apparatus, and energy consumption is low.Higher, the fine size of tungstic oxide product purity, sodium wolframate raw material availability height, mother liquid recycling can alleviate the pollution to environment.
Description of drawings
Accompanying drawing 1 is a kind of equipment combination structure synoptic diagram for preparing ultra-fine tungstic oxide described in the utility model.
Embodiment
A kind of equipment combination structure order of connection for preparing ultra-fine tungstic oxide of the utility model: the crystallizer 5 that crystal seed prepares in the equipment links to each other with the autoclave 6 that tungstic oxide prepares in the equipment, and the storage tank 8 in the mother liquor equipment for reclaiming links to each other with the whizzer 7 that tungstic oxide prepares in the equipment.The order of connection that crystal seed prepares the equipment combination is: mixer 1 → autoclave 2 → whizzer 3 → thickener 4 → crystallizer 5 → autoclave 6.The order of connection that tungstic oxide prepares the equipment combination is: autoclave 6 → whizzer 7 → stoving oven 10.The order of connection of mother liquor equipment for reclaiming combination is: storage tank 8 → thickener 9 → autoclave 6.
Embodiment
A kind of equipment combination for preparing ultra-fine tungstic oxide comprises: crystal seed prepares the combination that equipment, tungstic oxide prepare equipment and mother liquor equipment for reclaiming.
(1) crystal seed prepares the combination of equipment
In mixer 1, add sodium wolframate and water, be deployed into mass concentration and be 45% sodium tungstate solution, use acid-conditioning solution pH to 4.0～8.0 again.Material after the combination treatment is squeezed in the autoclave 2, hydro-thermal reaction 12 hours, the reaction precipitation thing of gained enters in the thickener 4 after whizzer 3 filtration treatment, concentrated solution after the concentration enters crystallization in the crystallizer 5, the crystallized product that obtains joins in the autoclave 6 as crystal seed, for the preparation of ultra-fine tungstic oxide product.
(2) tungstic oxide prepares the combination of equipment
Add mass concentration and be 10%～55% sodium tungstate solution in autoclave 6, add crystal seed again, the ratio of the quality of sodium wolframate is 1:4.5 in control crystal seed and the solution.The mixing solutions of crystal seed and sodium wolframate is under 200～220 ℃, intensively stirred condition, and hydro-thermal reaction was cooled to room temperature after 12 hours, obtained the reaction product slurry.This slurry is squeezed into solid-liquid separation in the whizzer 7, obtain filter cake and mother liquor.Filter cake joins in the stoving oven 10, obtains ultra-fine tungstic oxide product through 350 ℃ of low-temperature bakes.Mother liquor enters in the storage tank 8 to be concentrated.
(3) combination of mother liquor equipment for reclaiming
Filter cake washing liquid treatment stage of with whizzer 7 and the mother liquor in the storage tank 8 merge, be driven into again and carry out concentration in the thickener 9, obtain mass concentration and be 3%～20% sodium wolframate mother liquor and add reuse in the autoclave 6, be used for the preparation mass concentration and be 10%～55% sodium tungstate solution.
Claims (4)
1. equipment combination for preparing ultra-fine tungstic oxide, comprise that crystal seed prepares equipment, tungstic oxide prepares equipment and mother liquor equipment for reclaiming, it is characterized in that: the crystallizer (5) that crystal seed prepares in the equipment links to each other with the autoclave (6) that tungstic oxide prepares in the equipment, and the storage tank in the mother liquor equipment for reclaiming (8) links to each other with the whizzer (7) that tungstic oxide prepares in the equipment.
2. a kind of equipment combination for preparing ultra-fine tungstic oxide according to claim 1, it is characterized in that: the order of connection that described crystal seed prepares the equipment combination is: mixer (1) → autoclave (2) → whizzer (3) → thickener (4) → crystallizer (5) → autoclave (6).
3. a kind of equipment combination for preparing ultra-fine tungstic oxide according to claim 1, it is characterized in that: the order of connection that described tungstic oxide prepares the equipment combination is: autoclave (6) → whizzer (7) → stoving oven (10).
4. a kind of equipment combination for preparing ultra-fine tungstic oxide according to claim 1, it is characterized in that: the order of connection of described mother liquor equipment for reclaiming combination is: storage tank (8) → thickener (9) → autoclave (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220595493 CN203065177U (en) | 2012-11-13 | 2012-11-13 | Equipment assembly for preparing superfine tungsten trioxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220595493 CN203065177U (en) | 2012-11-13 | 2012-11-13 | Equipment assembly for preparing superfine tungsten trioxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203065177U true CN203065177U (en) | 2013-07-17 |
Family
ID=48763991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220595493 Expired - Fee Related CN203065177U (en) | 2012-11-13 | 2012-11-13 | Equipment assembly for preparing superfine tungsten trioxide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203065177U (en) |
-
2012
- 2012-11-13 CN CN 201220595493 patent/CN203065177U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20130717 Termination date: 20211113 |