CN109628740A - The method for reducing chromium content in high chromium calcium vanadate - Google Patents
The method for reducing chromium content in high chromium calcium vanadate Download PDFInfo
- Publication number
- CN109628740A CN109628740A CN201910137723.9A CN201910137723A CN109628740A CN 109628740 A CN109628740 A CN 109628740A CN 201910137723 A CN201910137723 A CN 201910137723A CN 109628740 A CN109628740 A CN 109628740A
- Authority
- CN
- China
- Prior art keywords
- chromium
- calcium vanadate
- content
- vanadate
- calcium
- 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
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/22—Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means, or by thermal decomposition
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B34/00—Obtaining refractory metals
- C22B34/20—Obtaining niobium, tantalum or vanadium
- C22B34/22—Obtaining vanadium
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention belongs to vanadium, chromium metallurgical technology field, and in particular to the method for reducing chromium content in high chromium calcium vanadate.Present invention solves the technical problem that being that chromium content in low chromium calcium vanadate that existing method is handled is higher.The present invention provides the methods for reducing chromium content in high chromium calcium vanadate, and this method comprises the following steps: water being added in a, Xiang Gaoge calcium vanadate and is beaten at 5~25 DEG C, obtains slurry；B, slurry described in step a is separated by solid-liquid separation to obtain low chromium calcium vanadate and de- chromium solution.Chromium content can be made in low chromium calcium vanadate less than 0.07% using the method for the present invention, while reduce the loss of vanadium, be conducive to calcium vanadate and further prepare vanadium oxide.The method of the present invention is easy to operate, it is easy implement, process costs it is low.
Description
Technical field
The invention belongs to vanadium, chromium metallurgical technology field, and in particular to the method for reducing chromium content in high chromium calcium vanadate.
Background technique
Panxi Diqu possesses v-ti magnetite ore resources abundant, is the maximum vanadium and titanium resources location in China.Wherein, red lattice
Mine Fen Nankuang and Bei Kuang, be climb in the big v-ti magnetite mining area in Xisi (Tai Hekuang, Bai Makuang, mining heritages, Hongge Deposit) it is unique still
The mining area not large-scale developed and utilized.Red lattice south green ore iron, vanadium grade are suitable with the head grade in other mining areas Pan Xi, but chromium
Grade is 8~10 times of other mining areas.Studies have shown that " blast furnace ironmaking-vanadium extraction by converter blowing chromium " is current most industrialization prospect
Process flow is coexisted in slag using the process vanadium and chromium, is the raw material of further recycling vanadium, chromium.Vanadium chromium slag separation and Extraction
Studying main flow direction is to synchronize vanadium, chromium to be transformed into solution, further separates vanadium and chromium.Calcium salt precipitation method is containing vanadium solution
Precipitation reaction is carried out with calcium salt, is one of the method for the Selective Separation vanadium from vanadium chromium solution, but obtained calcium vanadate chromium contains
Amount is higher, is unfavorable for further preparing vanadium oxide product.
Patent document CN107964601A discloses a kind of method for reducing chromium content in calcium vanadate, and this method is Xiang Gaoge
In calcium vanadate plus water is beaten, and obtains slurry, and de- chromium agent is then added into slurry, after being stirred to react, is separated by solid-liquid separation and is obtained low chromium
Calcium vanadate and de- chromium solution.De- chromium agent need to be added by handling high chromium calcium vanadate using this method, also, need to control during de- chromium
Make higher temperature, high process cost, the chromium content in low chromium calcium vanadate handled is all larger than 0.1%, chromium content compared with
It is high.
Summary of the invention
Present invention solves the technical problem that being that chromium content in low chromium calcium vanadate that existing method is handled is higher.
The technical solution used to solve the technical problems of the present invention is that providing the side for reducing chromium content in high chromium calcium vanadate
Method.This method comprises the following steps:
A, water is added in Xiang Gaoge calcium vanadate to be beaten at 5~25 DEG C, obtains slurry；
B, slurry described in step a is separated by solid-liquid separation to obtain low chromium calcium vanadate and de- chromium solution.
Wherein, in the high chromium calcium vanadate of above-mentioned reduction in the method for chromium content, as Cr in the low chromium calcium vanadate of step b gained2O3's
When mass percentage >=0.07%, step a, b is repeated.
Wherein, in the high chromium calcium vanadate of above-mentioned reduction in the method for chromium content, in step a, the high chromium calcium vanadate is by calcium
Salt precipitation method obtains.
Wherein, in the high chromium calcium vanadate of above-mentioned reduction in the method for chromium content, in step a, the high chromium calcium vanadate and water
Solid-liquid mass ratio is 1:3~8.
Wherein, in the high chromium calcium vanadate of above-mentioned reduction in the method for chromium content, in step a, time of the mashing is 10~
120min。
Further, in step a, the time of the mashing is 30~60min.
The beneficial effects of the present invention are:
Water is added in the method for the present invention Xiang Gaoge calcium vanadate to be beaten at 5~25 DEG C, according to the solubility of calcium chromate with temperature
The reduction of degree and become larger, reduce the content of chromium in calcium vanadate using low temperature mashing, the content of chromium in calcium vanadate can be made to be less than
0.07%, while reducing the loss of vanadium, vanadium oxide is further prepared conducive to calcium vanadate, vanadium chromium solution separation vanadium, chromium can be solved
The technology problem of vanadium oxide preparation.The method of the present invention is easy to operate, it is easy implement, process costs it is low.
Specific embodiment
For the existing method for reducing high chromium calcium vanadate chromium content, the content of chromium is inclined in the low chromium calcium vanadate handled
Height, inventor is had found by a large number of experiments, is become larger according to the solubility of calcium chromate with the reduction of temperature, and calcium vanadate dissolves
Degree becomes smaller with the reduction of temperature, and the content of chromium in chromium calcium vanadate can be reduced by adding water to be beaten at 5~25 DEG C high chromium calcium vanadate,
Chromium content can be made in low chromium calcium vanadate less than 0.07%, while reducing the loss of vanadium.
Specifically, the method disclosed by the invention for reducing chromium content in high chromium calcium vanadate, includes the following steps:
A, water is added in Xiang Gaoge calcium vanadate to be beaten at 5~25 DEG C, obtains slurry；
B, slurry described in step a is separated by solid-liquid separation to obtain low chromium calcium vanadate and de- chromium solution.
Wherein, in the high chromium calcium vanadate of above-mentioned reduction in the method for chromium content, as Cr in the low chromium calcium vanadate of step b gained2O3's
When mass percentage >=0.07%, step a, b is repeated.
In the present invention, in Xiang Gaoge calcium vanadate be added water 5~25 DEG C mashing be because calcium chromate solubility with
The reduction of temperature and become larger, and the reduction of calcium vanadate solubility with temperature and become smaller, 5~25 DEG C at a temperature of mashing be conducive to
The dissolution of calcium chromate, while the dissolution of calcium vanadate can be reduced, reduce the loss of vanadium.
Wherein, in the high chromium calcium vanadate of above-mentioned reduction in the method for chromium content, in step a, the high chromium calcium vanadate is by calcium
Salt precipitation method obtains；The calcium salt precipitation method is will to contain vanadium solution and calcium salt progress precipitation reaction.
Further, the high chromium calcium vanadate is the mixture of calcium vanadate and calcium chromate, in high chromium calcium vanadate chromium content with
Cr2O3It counts mass percentage and is greater than 0.15%.
Wherein, in the high chromium calcium vanadate of above-mentioned reduction in the method for chromium content, in step a, the high chromium calcium vanadate and water
Solid-liquid mass ratio is 1:3~8.
Wherein, in the high chromium calcium vanadate of above-mentioned reduction in the method for chromium content, in step a, time of the mashing is 10~
120min。
Further, in step a, the time of the mashing is 30~60min.
In the present invention, the solid-liquid mass ratio for controlling high chromium calcium vanadate and water is 1:3~8；The time of mashing be 10~
120min is to allow calcium chromate sufficiently to dissolve and enter in solution.
Wherein, in the high chromium calcium vanadate of above-mentioned reduction in the method for chromium content, in step b, chromium contains in the low chromium calcium vanadate
Amount is with Cr2O3Mass percentage is counted less than 0.07%.
The present invention is further elaborated below in conjunction with embodiment.
Embodiment 1
Take high chromium calcium vanadate (V2O540.43%, Cr2O30.63%, CaO 48.32%) 200g, 600mL water is added simultaneously
Constant temperature is stirred to react 120min at 5 DEG C, is separated by solid-liquid separation, obtained low chromium calcium vanadate 198.79g, wherein Cr2O3Content is
0.059%.
Embodiment 2
Take high chromium calcium vanadate (V2O540.43%, Cr2O30.63%, CaO 48.32%) 200g, 800mL water is added simultaneously
Constant temperature is stirred to react 80min at 10 DEG C, is separated by solid-liquid separation, obtained low chromium calcium vanadate 198.65g, wherein Cr2O3Content is
0.054%.
Embodiment 3
Take high chromium calcium vanadate (V2O540.43%, Cr2O30.63%, CaO 48.32%) 200g, 1200mL water is added simultaneously
Constant temperature is stirred to react 60min at 20 DEG C, is separated by solid-liquid separation, obtained low chromium calcium vanadate 198.24g, wherein Cr2O3Content is
0.048%.
Embodiment 4
Take high chromium calcium vanadate (V2O540.43%, Cr2O30.63%, CaO 48.32%) 200g, 1600mL water is added simultaneously
Constant temperature is stirred to react 30min at 25 DEG C, is separated by solid-liquid separation, obtained low chromium calcium vanadate 197.68g, wherein Cr2O3Content is
0.044%.
By Examples 1 to 4 it is found that the content of chromium in high chromium calcium vanadate can be effectively reduced using the method for the present invention, make chromium
Content reduces vanadium loss less than 0.07%, further prepares vanadium oxide conducive to calcium vanadate；The method of the present invention can solve vanadium
Chromium solution separates the technology problem of vanadium oxide preparation after vanadium, chromium.
Claims (6)
1. the method for reducing chromium content in high chromium calcium vanadate, it is characterised in that include the following steps:
A, water is added in Xiang Gaoge calcium vanadate to be beaten at 5~25 DEG C, obtains slurry；
B, slurry described in step a is separated by solid-liquid separation to obtain low chromium calcium vanadate and de- chromium solution.
2. the method according to claim 1 for reducing chromium content in high chromium calcium vanadate, it is characterised in that: obtained by step b
Cr in low chromium calcium vanadate2O3Mass percentage >=0.07% when, repeat step a, b.
3. the method according to claim 1 or 2 for reducing chromium content in high chromium calcium vanadate, it is characterised in that: in step a,
The high chromium calcium vanadate is obtained by calcium salt precipitation method.
4. described in any item methods for reducing chromium content in high chromium calcium vanadate according to claim 1~3, it is characterised in that: step
In rapid a, the solid-liquid mass ratio of the high chromium calcium vanadate and water is 1:3~8.
5. the method according to any one of claims 1 to 4 for reducing chromium content in high chromium calcium vanadate, it is characterised in that: step
In rapid a, the time of the mashing is 10~120min.
6. described in any item methods for reducing chromium content in high chromium calcium vanadate according to claim 1~5, it is characterised in that: step
In rapid a, the time of the mashing is 30~60min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910137723.9A CN109628740A (en) | 2019-02-25 | 2019-02-25 | The method for reducing chromium content in high chromium calcium vanadate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910137723.9A CN109628740A (en) | 2019-02-25 | 2019-02-25 | The method for reducing chromium content in high chromium calcium vanadate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109628740A true CN109628740A (en) | 2019-04-16 |
Family
ID=66065998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910137723.9A Pending CN109628740A (en) | 2019-02-25 | 2019-02-25 | The method for reducing chromium content in high chromium calcium vanadate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109628740A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003306328A (en) * | 2002-04-16 | 2003-10-28 | Mitsubishi Heavy Ind Ltd | Method and apparatus for recovering vanadium |
| CN102676817B (en) * | 2011-03-15 | 2014-07-02 | 中国科学院过程工程研究所 | Method for preparing calciferous vanadium oxide from vanadate |
| CN105506285A (en) * | 2015-12-21 | 2016-04-20 | 中南大学 | Method for separating vanadium and chromium from vanadium or/and chromium-contained solution |
| CN107937737A (en) * | 2017-11-24 | 2018-04-20 | 攀钢集团攀枝花钢铁研究院有限公司 | A kind of method for reducing chromium content in high chromium calcium vanadate |
| CN107964601A (en) * | 2017-11-24 | 2018-04-27 | 攀钢集团攀枝花钢铁研究院有限公司 | A kind of method of chromium content in reduction calcium vanadate |
-
2019
- 2019-02-25 CN CN201910137723.9A patent/CN109628740A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003306328A (en) * | 2002-04-16 | 2003-10-28 | Mitsubishi Heavy Ind Ltd | Method and apparatus for recovering vanadium |
| CN102676817B (en) * | 2011-03-15 | 2014-07-02 | 中国科学院过程工程研究所 | Method for preparing calciferous vanadium oxide from vanadate |
| CN105506285A (en) * | 2015-12-21 | 2016-04-20 | 中南大学 | Method for separating vanadium and chromium from vanadium or/and chromium-contained solution |
| CN107937737A (en) * | 2017-11-24 | 2018-04-20 | 攀钢集团攀枝花钢铁研究院有限公司 | A kind of method for reducing chromium content in high chromium calcium vanadate |
| CN107964601A (en) * | 2017-11-24 | 2018-04-27 | 攀钢集团攀枝花钢铁研究院有限公司 | A kind of method of chromium content in reduction calcium vanadate |
Non-Patent Citations (3)
| Title |
|---|
| LINKE, WILLIAM F.: "《Solubilities Inorganic and Metal-Organic Compounds》", 31 December 1958 * |
| 周伯动: "《常用试剂与金属离子的反应》", 31 December 1959, 冶金工业出版社 * |
| 廖世明: "《国外钒冶金》", 31 December 1985 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102181669B (en) | Method for preparing titanium-rich material from high-impurity ilmenite concentrate | |
| CN103572063B (en) | A kind of vanadium slag reclaims the method for vanadium without sodium roasting clean and effective | |
| CN109182768A (en) | The method of vanadium and chromium is separated from vanadium chromium slag | |
| CN110093506A (en) | Valuable metal high efficiency extraction and its minimizing processing method in germanic zinc leaching residue | |
| CN101168802A (en) | Method for comprehensively recovering iron, vanadium and titanium in vanadium-titanium magnetite concentrate | |
| CN111471871B (en) | Method for recovering chromium resources in electric furnace stainless steel slag | |
| CN110016548A (en) | The method of vanadium titano-magnetite concentrate roasting extraction vanadium extraction | |
| CN109735720A (en) | The method of vanadium-bearing slag of high calcium and high phosphor depth vanadium extraction | |
| CN107619941A (en) | The method that vanadium and chromium are separated from vanadium chromium slag | |
| CN110606506A (en) | Method for producing titanium slag and titanium white chloride by using Panzhihua ilmenite | |
| CN104294055A (en) | Method for extracting vanadium from vanadium slag | |
| CN106011469B (en) | The method of the continuous precipitation of high vanadium concentrations solution | |
| CN107937737B (en) | A method of reducing chromium content in high chromium calcium vanadate | |
| CN107285375A (en) | The method that low-grade titanium ore prepares high-grade artificial rutile | |
| CN110184471A (en) | A kind of method of steel ash synthetical recovery enrichment multiple elements gold and silver noble metal | |
| CN101585553A (en) | Method for producing vanadium pentoxide by ore containing vanadium and intermediate material containing vanadium | |
| CN109437251B (en) | Method for extracting lithium salt by activating, pressing and immersing spodumene by using hydrated lime | |
| CN103204552A (en) | Iron removing method during process of extracting aluminum from coal gangue | |
| CN111733331B (en) | Method for preparing upgraded titanium slag by tapping hot slag | |
| CN113846227A (en) | Method for separating and recovering multiple metal components in red mud leaching solution | |
| CN101435020A (en) | Method for producing titanium-rich material from titanium ore concentrate | |
| CN108950224A (en) | A kind of method of valuable constituent element comprehensive reutilization in vanadium slag | |
| CN109628740A (en) | The method for reducing chromium content in high chromium calcium vanadate | |
| CN107964601B (en) | A kind of method of chromium content in reduction calcium vanadate | |
| CN110195159A (en) | A kind of method that spodumene prepares alusil alloy and enriching lithium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190416 |
|
| RJ01 | Rejection of invention patent application after publication |