CN107500353A - High-purity sodium metavanadate and preparation method thereof - Google Patents
High-purity sodium metavanadate and preparation method thereof Download PDFInfo
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- CN107500353A CN107500353A CN201710846331.0A CN201710846331A CN107500353A CN 107500353 A CN107500353 A CN 107500353A CN 201710846331 A CN201710846331 A CN 201710846331A CN 107500353 A CN107500353 A CN 107500353A
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- silicon
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- metavanadate
- purity
- sodium
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G31/00—Compounds of vanadium
- C01G31/003—Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange
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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
- C01P2006/10—Solid density
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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
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- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
The invention discloses a kind of high-purity sodium metavanadate and preparation method thereof, the preparation method includes：(1) will contain vanadium leachate by the first alkalescence anion-exchange resin carry out silicon absorption, obtain remove silicon after contain vanadium leachate；(2) vanadium leachate is contained after obtaining except silicon and phosphorus except phosphorus absorption is carried out by the second alkalescence anion-exchange resin containing vanadium leachate after silicon by described；(3) ammonium metavanadate is obtained except containing after silicon and phosphorus adds precipitation agent in vanadium leachate to described；(4) ammonium metavanadate is dissolved in sodium hydroxide solution, obtains sodium vanadate solution；(5) by the sodium vanadate solution evaporative crystallization, high-purity sodium metavanadate is obtained.High-purity sodium metavanadate purity that the method for the present invention provides is good, can meet the needs of people are to high-purity sodium metavanadate.
Description
Technical field
The invention belongs to field of chemicals, more particularly, to a kind of high-purity sodium metavanadate and preparation method thereof.
Background technology
Sodium metavanadate is white or flaxen crystal, relative density 2.79,630 DEG C of fusing point.It is dissolved in water, it is molten at 25 DEG C
Xie Du is 21.1g/100mlH2O, it is 38.8g/100ml/H at 75 DEG C2O, it is slightly soluble in ethanol.Can be used as chemical reagent, catalyst,
Drier, mordant, ammonium vanadate and potassium metavanadate are manufactured, be also used for medical treatment photograph, plant inoculating and corrosion inhibitor etc..
With the extensive use of sodium metavanadate, purity requirement more and more higher of the people to sodium metavanadate, therefore, it is necessary to carry
For a kind of preparation method of high-purity sodium metavanadate, to meet the needs of people are to high-purity sodium metavanadate.
The content of the invention
It is an object of the invention to provide a kind of preparation method of high-purity sodium metavanadate, to meet people to high-purity sodium metavanadate
Demand.
To achieve these goals, an aspect of of the present present invention provides a kind of preparation method of high-purity sodium metavanadate, the preparation
Method includes：
(1) will contain vanadium leachate by the first alkalescence anion-exchange resin carry out silicon absorption, obtain remove silicon after contain vanadium
Leachate；
(2) obtained described except phosphorus absorption is carried out by the second alkalescence anion-exchange resin containing vanadium leachate after silicon
Except containing vanadium leachate after silicon and phosphorus；
(3) ammonium metavanadate is obtained except containing after silicon and phosphorus adds precipitation agent in vanadium leachate to described；
(4) ammonium metavanadate is dissolved in sodium hydroxide solution, obtains sodium vanadate solution；
(5) by the sodium vanadate solution evaporative crystallization, high-purity sodium metavanadate is obtained.
Preferably, first alkalescence anion-exchange resin is the gel-type for being capable of selective absorption silicic acid hydrogen radical ion
Anion exchange resin.
Preferably, second alkalescence anion-exchange resin is the gel-type the moon for being capable of selective absorption phosphate anion
Ion exchange resin.
Preferably, the precipitation agent is ammonium chloride, ammonium sulfate or ammoniacal liquor.
Preferably, using the conditioning agent regulation pH containing vanadium leachate except after silicon and phosphorus as 8.5~9.5.
Preferably, the conditioning agent is sodium hydroxide and/or sodium acid carbonate.
Another aspect of the present invention provides high-purity sodium metavanadate prepared by a kind of preparation method of above-mentioned high-purity sodium metavanadate.
Technical scheme, pass through the first alkalescence anion-exchange resin and the second alkalescence anion-exchange resin point
Do not remove containing the silicon and phosphorus in vanadium leachate, then by high to purity is obtained containing addition precipitation agent in vanadium leachate after filtering
Ammonium metavanadate；And then high-purity sodium metavanadate is obtained by evaporative crystallization using the high ammonium metavanadate of purity.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Embodiment
The preferred embodiment of the present invention is described in more detail below.Although the following describe being preferable to carry out for the present invention
Mode, however, it is to be appreciated that may be realized in various forms the present invention without should be limited by embodiments set forth herein.Phase
Instead, there is provided these embodiments be in order that the present invention is more thorough and complete, and can be by the scope of the present invention intactly
It is communicated to those skilled in the art.
An aspect of of the present present invention provides a kind of preparation method of high-purity sodium metavanadate, and the preparation method includes：
(1) will contain vanadium leachate by the first alkalescence anion-exchange resin carry out silicon absorption, obtain remove silicon after contain vanadium
Leachate；
(2) obtained described except phosphorus absorption is carried out by the second alkalescence anion-exchange resin containing vanadium leachate after silicon
Except containing vanadium leachate after silicon and phosphorus；
(3) ammonium metavanadate is obtained except containing after silicon and phosphorus adds precipitation agent in vanadium leachate to described；
(4) ammonium metavanadate is dissolved in sodium hydroxide solution, obtains sodium vanadate solution；
(5) by the sodium vanadate solution evaporative crystallization, high-purity sodium metavanadate is obtained.
In accordance with the present invention it is preferred that first alkalescence anion-exchange resin is being capable of selective absorption silicic acid hydrogen radical
The gel-type anion exchanger resin of ion.
In accordance with the present invention it is preferred that second alkalescence anion-exchange resin for can selective absorption phosphate radical from
The gel-type anion exchanger resin of son.
In accordance with the present invention it is preferred that the precipitation agent is ammonium chloride, ammonium sulfate or ammoniacal liquor.
In accordance with the present invention it is preferred that using the conditioning agent regulation pH containing vanadium leachate except after silicon and phosphorus as 8.5~
9.5。
In accordance with the present invention it is preferred that the conditioning agent is sodium hydroxide and/or sodium acid carbonate.
Preferably, each raw material of the invention for preparing high-purity sodium metavanadate can be by commercially available.
Another aspect of the present invention provides high-purity sodium metavanadate prepared by a kind of preparation method of above-mentioned high-purity sodium metavanadate.
High-purity sodium metavanadate purity that the method for the present invention provides is good, can meet need of the people to high-purity sodium metavanadate
Ask.
The present invention is further illustrated by the following examples：
Embodiment 1
A kind of preparation method of high-purity sodium metavanadate is present embodiments provided, the preparation method includes：
(1) will contain vanadium leachate by the first alkalescence anion-exchange resin carry out silicon absorption, obtain remove silicon after contain vanadium
Leachate, wherein, first alkalescence anion-exchange resin is the gel-type the moon for being capable of selective absorption silicic acid hydrogen radical ion
Ion exchange resin；
(2) obtained described except phosphorus absorption is carried out by the second alkalescence anion-exchange resin containing vanadium leachate after silicon
Except containing vanadium leachate after silicon and phosphorus, wherein, second alkalescence anion-exchange resin is being capable of selective absorption phosphate radical
The gel-type anion exchanger resin of ion；
(3) ammonium metavanadate is obtained except containing after silicon and phosphorus adds precipitation agent in vanadium leachate to described, wherein, with hydrogen-oxygen
It is 8.5~9.5 to change the sodium regulation pH containing vanadium leachate except after silicon and phosphorus, and the precipitation agent is ammonium chloride；
(4) ammonium metavanadate is dissolved in sodium hydroxide solution, obtains sodium vanadate solution；
(5) by the sodium vanadate solution evaporative crystallization, high-purity sodium metavanadate is obtained.
Embodiment 2
A kind of preparation method of high-purity sodium metavanadate is present embodiments provided, the preparation method includes：
(1) will contain vanadium leachate by the first alkalescence anion-exchange resin carry out silicon absorption, obtain remove silicon after contain vanadium
Leachate, wherein, first alkalescence anion-exchange resin is the gel-type the moon for being capable of selective absorption silicic acid hydrogen radical ion
Ion exchange resin；
(2) obtained described except phosphorus absorption is carried out by the second alkalescence anion-exchange resin containing vanadium leachate after silicon
Except containing vanadium leachate after silicon and phosphorus, wherein, second alkalescence anion-exchange resin is being capable of selective absorption phosphate radical
The gel-type anion exchanger resin of ion；
(3) ammonium metavanadate is obtained except containing after silicon and phosphorus adds precipitation agent in vanadium leachate to described, wherein, with carbonic acid
The hydrogen sodium regulation pH containing vanadium leachate except after silicon and phosphorus is 8.5~9.5, and the precipitation agent is ammoniacal liquor；
(4) ammonium metavanadate is dissolved in sodium hydroxide solution, obtains sodium vanadate solution；
(5) by the sodium vanadate solution evaporative crystallization, high-purity sodium metavanadate is obtained.
It is described above various embodiments of the present invention, described above is exemplary, and non-exclusive, and
It is not limited to disclosed each embodiment.In the case of without departing from the scope and spirit of illustrated each embodiment, for this skill
Many modifications and changes will be apparent from for the those of ordinary skill in art field.
Claims (7)
1. a kind of preparation method of high-purity sodium metavanadate, it is characterised in that the preparation method includes：
(1) vanadium leachate will be contained silicon absorption is carried out by the first alkalescence anion-exchange resin, obtained except the vanadium that contains after silicon leaches
Liquid；
(2) obtain removing silicon except phosphorus absorption is carried out by the second alkalescence anion-exchange resin containing vanadium leachate after silicon by described
Contain vanadium leachate with after phosphorus；
(3) ammonium metavanadate is obtained except containing after silicon and phosphorus adds precipitation agent in vanadium leachate to described；
(4) ammonium metavanadate is dissolved in sodium hydroxide solution, obtains sodium vanadate solution；
(5) by the sodium vanadate solution evaporative crystallization, high-purity sodium metavanadate is obtained.
2. the preparation method of high-purity sodium metavanadate according to claim 1, wherein, first alkali anion exchanges tree
Fat is the gel-type anion exchanger resin for being capable of selective absorption silicic acid hydrogen radical ion.
3. the preparation method of high-purity sodium metavanadate according to claim 1, wherein, second alkali anion exchanges tree
Fat is the gel-type anion exchanger resin for being capable of selective absorption phosphate anion.
4. the preparation method of high-purity sodium metavanadate according to claim 1, wherein, the precipitation agent is ammonium chloride, sulfuric acid
Ammonium or ammoniacal liquor.
5. the preparation method of high-purity sodium metavanadate according to claim 1, wherein, to remove silicon and phosphorus described in conditioning agent regulation
The pH containing vanadium leachate afterwards is 8.5~9.5.
6. the preparation method of high-purity sodium metavanadate according to claim 5, wherein, the conditioning agent be sodium hydroxide and/
Or sodium acid carbonate.
7. high-purity metavanadic acid prepared by the preparation method of high-purity sodium metavanadate according to any one in claim 1-6
Sodium.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110723750A (en) * | 2019-10-24 | 2020-01-24 | 成都先进金属材料产业技术研究院有限公司 | Direct preparation of high-purity V from alkaline vanadium-containing leaching solution2O5Method (2) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102502570A (en) * | 2011-11-29 | 2012-06-20 | 芜湖人本合金有限责任公司 | Production method of medical sodium metavanadate |
| CN104628086A (en) * | 2015-01-06 | 2015-05-20 | 大连东泰资源再生有限公司 | Novel phosphorus removal method for alkaline leaching solution containing molybdenum and vanadium |
| CN104628032A (en) * | 2015-01-06 | 2015-05-20 | 大连东泰资源再生有限公司 | Method for preparing high-purity ammonium metavanadate from spent catalyst |
| CN105271406A (en) * | 2015-09-28 | 2016-01-27 | 攀钢集团攀枝花钢铁研究院有限公司 | Sodium metavanadate preparation method |
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2017
- 2017-09-19 CN CN201710846331.0A patent/CN107500353A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102502570A (en) * | 2011-11-29 | 2012-06-20 | 芜湖人本合金有限责任公司 | Production method of medical sodium metavanadate |
| CN104628086A (en) * | 2015-01-06 | 2015-05-20 | 大连东泰资源再生有限公司 | Novel phosphorus removal method for alkaline leaching solution containing molybdenum and vanadium |
| CN104628032A (en) * | 2015-01-06 | 2015-05-20 | 大连东泰资源再生有限公司 | Method for preparing high-purity ammonium metavanadate from spent catalyst |
| CN105271406A (en) * | 2015-09-28 | 2016-01-27 | 攀钢集团攀枝花钢铁研究院有限公司 | Sodium metavanadate preparation method |
Non-Patent Citations (2)
| Title |
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| 官清等: ""用偏钒酸铵制备偏钒酸钠工艺研究"", 《无机盐工业》 * |
| 路光杰: ""强碱性阴树脂除硅机理的研究"", 《工业水处理》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110723750A (en) * | 2019-10-24 | 2020-01-24 | 成都先进金属材料产业技术研究院有限公司 | Direct preparation of high-purity V from alkaline vanadium-containing leaching solution2O5Method (2) |
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Application publication date: 20171222 |