CN107475518A - A kind of method that vanadium classification is leached - Google Patents
A kind of method that vanadium classification is leached Download PDFInfo
- Publication number
- CN107475518A CN107475518A CN201710942560.2A CN201710942560A CN107475518A CN 107475518 A CN107475518 A CN 107475518A CN 201710942560 A CN201710942560 A CN 201710942560A CN 107475518 A CN107475518 A CN 107475518A
- Authority
- CN
- China
- Prior art keywords
- vanadium
- slurry
- leaching
- leached
- level
- 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.)
- Granted
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
- C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
- C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
- C22B3/08—Sulfuric acid, other sulfurated acids or salts thereof
-
- 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
Abstract
The invention discloses the method that a kind of classification of vanadium is leached, belong to field of metallurgy.A kind of method that vanadium classification is leached：By adjusting successively slurry pH is leached containing vanadium, classification leaching is carried out successively, one-level including 10≤pH ＜ 13 leaches, 7≤pH ＜ 10 two level leaches, 6≤pH ＜ 7 three-level leaches, 4≤pH ＜ 5 level Four leaches, and 2.5≤pH ＜ 3 Pyatyi leaches；1.5≤pH ＜ 2.5 six grades of leachings, 1.0≤pH ＜ 1.5 seven grades of leachings.The inventive method is according to V5+Existence form and color in different pH leachates, creative provides a kind of vanadium classification disengaging method, produces different leaching products, significantly improves V leaching rate, being classified accumulative leaching rate can be to more than 96%；Can be according to V in calcification baking clinker5+Existence form, flexible selectively leaching rank, reduce classification number, reduce cost, field conduct is strong, has wide promotional value.
Description
Technical field
The invention belongs to field of metallurgy, is related to a kind of method that vanadium classification is leached.
Background technology
Conventional vanadium leaching method is Rapid Leaching+leach at a slow speed.Rapid Leaching occurs within 15min, mixing speed
It is exceedingly fast, phosphoric acid, temperature increased dramatically with the drastically addition and pH drastically decline of dilute sulfuric acid, while produce big quantitative response
Heat, reaction heat is too high, causes extraction temperature higher, leaches and precipitation phenomenon occurs, cause vanadium to lose.Leach at a slow speed and occur
After 15min, mixing speed is moderate, phosphoric acid, temperature with dilute sulfuric acid be slowly added to pH stabilization become it is slow and
It is stable.
The method of the quick reduction pH Rapid Leachings used in the prior art, in the preferable fast reaction of current heat insulation effect
Outstanding problem in tank, with the drastically rise for leaching phosphoric acid, temperature, reaction heat increased dramatically, and cause to leach generation precipitation
Phenomenon, vanadium loss are more serious；Increase liquid-solid ratio, the method for dilute sulphuric acid concentration is taken to be only capable of alleviating Rapid Leaching slightly
Great quantities of spare caused by (in 15min) reacts heat problem, can not equally solve the problems, such as to leach incomplete and precipitation.
The content of the invention
For technical problem existing for the above-mentioned leaching method of vanadium in the prior art, the invention provides a kind of classification of vanadium to leach
Method, this method comprises the following steps：
Aqueous phase and calcification baking clinker are mixed to get and leach slurry A containing vanadium, classification leaching is carried out according to slurry pH successively；
The one-level leaching for including 10≤pH ＜ 13 is leached in the classification, and 7≤pH ＜ 10 two level leaches, and 6≤pH ＜ 7 three-level leaches, and 4
≤ pH ＜ 5 level Four leaches, and 2.5≤pH ＜ 3 Pyatyi leaches；It is described classification leach operation be：
When the slurry A containing vanadium leaching is 10≤pH ＜ 13, one-level leaching is carried out, then passes sequentially through regulation slurry pH, successively
The two level for carrying out 7≤pH ＜ 10 leaches, and 6≤pH ＜ 7 three-level leaches, and 4≤pH ＜ 5 level Four leaches, and the five of 2.5≤pH ＜ 3
Level is leached, and vanadium liquid A must be leached by filtering；
Or：When the slurry A containing vanadium leaching is 7≤pH ＜ 10, two level leaching is directly carried out, then pass sequentially through regulation slurry
PH, the three-level for carrying out 6≤pH ＜ 7 successively leach, and 4≤pH ＜ 5 level Four leaches, and 2.5≤pH ＜ 3 Pyatyi leaches, and filters
Leach vanadium liquid A；
Or：When the slurry A containing vanadium leaching is 6≤pH ＜ 7, three-level leaching is directly carried out, then pass sequentially through regulation slurry
PH, the level Four for carrying out 4≤pH ＜ 5 successively are leached, and 2.5≤pH ＜ 3 Pyatyi is leached, and vanadium liquid A must be leached by filtering；
Or：When the slurry A containing vanadium leaching is 4≤pH ＜ 5, level Four leaching is directly carried out, then pass sequentially through regulation slurry
PH, the Pyatyi for carrying out 2.5≤pH ＜ 3 are leached, and vanadium liquid A must be leached by filtering；
Or：When the slurry A containing vanadium leaching is 2.5≤pH ＜ 3, Pyatyi leaching is directly carried out, vanadium liquid A must be leached by filtering.
Wherein, in the above method, six grades of leachings also including 1.5≤pH ＜ 2.5,1.0≤pH ＜ 1.5 are leached in the classification
Seven grades leaching, it is described classification leach operation be：
When the slurry A containing vanadium leaching is 10≤pH ＜ 13, one-level leaching is carried out, then passes sequentially through regulation slurry pH, successively
The two level for carrying out 7≤pH ＜ 10 leaches, and 6≤pH ＜ 7 three-level leaches, and 4≤pH ＜ 5 level Four leaches, and the five of 2.5≤pH ＜ 3
Level leaches；The slurry that Pyatyi is leached separates, and obtains leaching vanadium liquid A and residue, residue obtained mixed with water, is soaked with that must contain vanadium
Go out slurry B, then pass sequentially through regulation slurry pH, the six of 1.5≤pH ＜ 2.5 grade leach successively, 1.0≤pH ＜ 1.5 seven grades of leachings
Go out, vanadium liquid B must be leached by filtering；
Or：When the slurry A containing vanadium leaching is 7≤pH ＜ 10, two level leaching is directly carried out, then pass sequentially through regulation slurry
PH, the three-level for carrying out 6≤pH ＜ 7 successively leach, and 4≤pH ＜ 5 level Four leaches, and 2.5≤pH ＜ 3 Pyatyi leaches；By Pyatyi
The slurry separation of leaching, obtain leaching vanadium liquid A and residue, it is residue obtained mixed with water, leach slurry B with vanadium must be contained, then according to
Secondary by adjusting slurry pH, six grades of 1.5≤pH ＜ 2.5 leach successively, and 1.0≤pH ＜ 1.5 seven grades of leachings, filtering to leach
Vanadium liquid B；
Or：When the slurry A containing vanadium leaching is 6≤pH ＜ 7, three-level leaching is directly carried out, then pass sequentially through regulation slurry
PH, the level Four for carrying out 4≤pH ＜ 5 successively leach, and 2.5≤pH ＜ 3 Pyatyi leaches；The slurry that Pyatyi is leached separates, and obtains
Vanadium liquid A and residue are leached, it is residue obtained mixed with water, slurry B is leached with vanadium must be contained, then regulation slurry pH is passed sequentially through, according to
Secondary 1.5≤pH ＜ 2.5 six grades of leachings, 1.0≤pH ＜ 1.5 seven grades of leachings, vanadium liquid B must be leached by filtering；
Or：When the slurry A containing vanadium leaching is 4≤pH ＜ 5, level Four leaching is directly carried out, then pass sequentially through regulation slurry
PH, the Pyatyi for carrying out 2.5≤pH ＜ 3 leach；The slurry that Pyatyi is leached separates, and obtains leaching vanadium liquid A and residue, residue obtained
It is mixed with water, slurry B is leached with vanadium must be contained, then regulation slurry pH is passed sequentially through, the six of 1.5≤pH ＜ 2.5 grade leach successively,
1.0≤pH ＜ 1.5 seven grades of leachings, vanadium liquid B must be leached by filtering；
Or：When the slurry A containing vanadium leaching is 2.5≤pH ＜ 3, Pyatyi leaching is directly carried out；The slurry that Pyatyi is leached
Separation, obtain leaching vanadium liquid A and residue, it is residue obtained mixed with water, slurry B is leached with vanadium must be contained, then pass sequentially through regulation
Slurry pH, the six of 1.5≤pH ＜ 2.5 grade leaching successively, 1.0≤pH ＜ 1.5 seven grades of leachings, vanadium liquid B must be leached by filtering；
Or：The pH for adjusting the A containing vanadium leaching slurry is 1.5≤pH ＜ 2.5, directly carries out six grades of leachings, then pass through regulation
Slurry pH, 1.0≤pH ＜ 1.5 seven grades of leachings are carried out, vanadium liquid A must be leached by filtering；
Or：The pH for adjusting the A containing vanadium leaching slurry is 1.0≤pH ＜ 1.5, directly carries out seven grades of leachings, filtering to leach
Vanadium liquid A.
Wherein, in the above method, the aqueous phase is at least one of water or low concentration vanadium liquid；The low concentration vanadium liquid
PH is 2.5~4.0, and vanadium concentration is 3~8g/L, in terms of V.
Wherein, it is described when classification, which is leached, is leached since one-level, two level, three-level, level Four or Pyatyi in the above method
To leach slurry A containing vanadium be to be not less than 2.5 by liquid-solid ratio by aqueous phase and calcification baking clinker, preparation obtains；The liquid-solid ratio is
By volume, solid is by mass for aqueous phase.
Wherein, in the above method, when classification, which is leached, is leached since six grades or seven grades, the slurry A containing vanadium leaching is
It is not less than 2.0 by liquid-solid ratio by aqueous phase and calcification baking clinker, preparation obtains；It is described containing vanadium leach slurry B be by aqueous phase with it is residual
Slag is not less than 2.0 by liquid-solid ratio, and preparation obtains；For aqueous phase by volume, solid is by mass for the liquid-solid ratio.
Wherein, in the above method, when calcification baking clinker is (Ca, Mn) V2O7Or Ca2V2O7At least one of when, by water
Mutually mixed with calcification baking clinker by liquid-solid ratio 2.67~3, obtain leaching slurry A containing vanadium, directly leached since leaching two level.
Wherein, in the above method, when calcification baking clinker is Ca (VO3)2When, aqueous phase is consolidated with calcification baking clinker by liquid
Than 2.1~2.5 mixing, obtain leaching slurry A containing vanadium, the pH for adjusting the A containing vanadium leaching slurry is 1.5≤pH ＜ 2.5, directly from six
Level, which leaches, to be started to leach.
Wherein, in the above method, use mass concentration for 30~65% sulphur acid for adjusting pH.
Wherein, in the above method, the extraction time of every grade of leaching is 5~10min.
The beneficial effects of the invention are as follows：
The inventive method is according to V5+Existence form and color in different pH leachates, creative provides a kind of vanadium
Method of classified leaching, it can accurately control and leach pH, and can ensures suitable extraction temperature, produces different leaching products, shows
Work reduces precipitation caused by scene is drastically reacted or leaches incomplete problem, further improves leaching rate, is classified accumulative leach
Rate can be to more than 96%, remarkable in economical benefits；Can be according to V in calcification baking clinker5+Existence form, flexible selectively leaching level
Not, classification number is reduced, reduces cost, field conduct is strong, has wide promotional value.
Embodiment
Specifically, a kind of method that vanadium classification is leached, comprises the following steps：
Aqueous phase and calcification baking clinker are mixed to get and leach slurry A containing vanadium, classification leaching is carried out according to slurry pH successively；
The one-level leaching for including 10≤pH ＜ 13 is leached in the classification, and 7≤pH ＜ 10 two level leaches, and 6≤pH ＜ 7 three-level leaches, and 4
≤ pH ＜ 5 level Four leaches, and 2.5≤pH ＜ 3 Pyatyi leaches；It is described classification leach operation be：
When the slurry A containing vanadium leaching is 10≤pH ＜ 13, one-level leaching is carried out, then passes sequentially through regulation slurry pH, successively
The two level for carrying out 7≤pH ＜ 10 leaches, and 6≤pH ＜ 7 three-level leaches, and 4≤pH ＜ 5 level Four leaches, and the five of 2.5≤pH ＜ 3
Level is leached, and vanadium liquid A must be leached by filtering；
Or：When the slurry A containing vanadium leaching is 7≤pH ＜ 10, two level leaching is directly carried out, then pass sequentially through regulation slurry
PH, the three-level for carrying out 6≤pH ＜ 7 successively leach, and 4≤pH ＜ 5 level Four leaches, and 2.5≤pH ＜ 3 Pyatyi leaches, and filters
Leach vanadium liquid A；
Or：When the slurry A containing vanadium leaching is 6≤pH ＜ 7, three-level leaching is directly carried out, then pass sequentially through regulation slurry
PH, the level Four for carrying out 4≤pH ＜ 5 successively are leached, and 2.5≤pH ＜ 3 Pyatyi is leached, and vanadium liquid A must be leached by filtering；
Or：When the slurry A containing vanadium leaching is 4≤pH ＜ 5, level Four leaching is directly carried out, then pass sequentially through regulation slurry
PH, the Pyatyi for carrying out 2.5≤pH ＜ 3 are leached, and vanadium liquid A must be leached by filtering；
Or：When the slurry A containing vanadium leaching is 2.5≤pH ＜ 3, Pyatyi leaching is directly carried out, vanadium liquid A must be leached by filtering.
Inventor vanadium leach practice in find, V5+Existence form is different in different pH liquid, pH changes, V5+In the presence of
Form converts rapidly, and V5+Color also changes therewith, and slurry color, extraction time, leaching rate can be passed through by leaching terminal
Deng judgement.The present invention is according to V5+Existence form and color in different leaching pH, there is provided a kind of vanadium method of classified leaching, with
Under vanadium method of classified leaching of the present invention is specifically explained：
1st, it is 10≤pH ＜ 13 to leach slurry A containing vanadium, carries out one-level leaching, leaches product and contains V for colourless2O7 4-Leach
Slurry；
10≤pH ＜ 13：2VO4 3-(colourless)+2H+→V2O7 4-(colourless)+H2O
2nd, it is 7≤pH ＜ 10 to leach slurry A containing vanadium, carries out two level leaching, leaches product and contains V for colourless4O12 4-Leached material
Slurry；
7≤pH ＜ 10：2V2O7 4-(colourless)+4H+→V4O12 4-(colourless)+2H2O
3rd, it is 6≤pH ＜ 7 to leach slurry A containing vanadium, carries out three-level leaching, leaches product and contains V for orange10O28 6-Leached material
Slurry；
6≤pH ＜ 7：2.5V4O12 4-(colourless)+4H+→V10O28 6-(orange)+2H2O
4th, it is 4≤pH ＜ 5 to leach slurry A containing vanadium, carries out level Four leaching, leaches product and contains HV for orange10O28 5-Leach
Slurry；
4≤pH ＜ 5：V10O28 6-(orange)+H+→HV10O28 5-(orange)
5th, it is 2.5≤pH ＜ 3 to leach slurry A containing vanadium, carries out Pyatyi leaching, leaches product and contains H for darkorange2V10O28 4-
Leach slurry；
2.5≤pH ＜ 3：HV10O28 5-(orange)+H+→H2V10O28 4-(darkorange)
The product for leaching to obtain by Pyatyi is the H of darkorange2V10O28 4-Slurry is leached, pH can not now be controlled too high
(3≤pH ＜ 4), it otherwise can occur to hydrolyze precipitation：
3≤pH ＜ 4：H2V10O28 4-(darkorange)+4H++2H2O→5V2O5·H2O (brick-red solid)
Also can not be too low by pH controls, it otherwise can occur to hydrolyze precipitation：
1.5≤pH ＜ 2.5：H2V10O28 4-(darkorange)+14H+→10VO2 +(light yellow)+8H2O
pH≤1：2VO2 +(light yellow)+2H2O→V2O5·H2O (brick-red solid)+2H+
In addition, the leaching rank of the inventive method can also include 1.5≤pH ＜ 2.5 six grades of leachings, 1.0≤pH ＜
1.5 seven grades of leachings, the operation that the classification is leached are：
When the slurry A containing vanadium leaching is 10≤pH ＜ 13, one-level leaching is carried out, then passes sequentially through regulation slurry pH, successively
The two level for carrying out 7≤pH ＜ 10 leaches, and 6≤pH ＜ 7 three-level leaches, and 4≤pH ＜ 5 level Four leaches, and the five of 2.5≤pH ＜ 3
Level leaches；The slurry that Pyatyi is leached separates, and obtains leaching vanadium liquid A and residue, residue obtained mixed with water, is soaked with that must contain vanadium
Go out slurry B, then pass sequentially through regulation slurry pH, the six of 1.5≤pH ＜ 2.5 grade leach successively, 1.0≤pH ＜ 1.5 seven grades of leachings
Go out, vanadium liquid B must be leached by filtering；
Or：When the slurry A containing vanadium leaching is 7≤pH ＜ 10, two level leaching is directly carried out, then pass sequentially through regulation slurry
PH, the three-level for carrying out 6≤pH ＜ 7 successively leach, and 4≤pH ＜ 5 level Four leaches, and 2.5≤pH ＜ 3 Pyatyi leaches；By Pyatyi
The slurry separation of leaching, obtain leaching vanadium liquid A and residue, it is residue obtained mixed with water, leach slurry B with vanadium must be contained, then according to
Secondary by adjusting slurry pH, six grades of 1.5≤pH ＜ 2.5 leach successively, and 1.0≤pH ＜ 1.5 seven grades of leachings, filtering to leach
Vanadium liquid B；
Or：When the slurry A containing vanadium leaching is 6≤pH ＜ 7, three-level leaching is directly carried out, then pass sequentially through regulation slurry
PH, the level Four for carrying out 4≤pH ＜ 5 successively leach, and 2.5≤pH ＜ 3 Pyatyi leaches；The slurry that Pyatyi is leached separates, and obtains
Vanadium liquid A and residue are leached, it is residue obtained mixed with water, slurry B is leached with vanadium must be contained, then regulation slurry pH is passed sequentially through, according to
Secondary 1.5≤pH ＜ 2.5 six grades of leachings, 1.0≤pH ＜ 1.5 seven grades of leachings, vanadium liquid B must be leached by filtering；
Or：When the slurry A containing vanadium leaching is 4≤pH ＜ 5, level Four leaching is directly carried out, then pass sequentially through regulation slurry
PH, the Pyatyi for carrying out 2.5≤pH ＜ 3 leach；The slurry that Pyatyi is leached separates, and obtains leaching vanadium liquid A and residue, residue obtained
It is mixed with water, slurry B is leached with vanadium must be contained, then regulation slurry pH is passed sequentially through, the six of 1.5≤pH ＜ 2.5 grade leach successively,
1.0≤pH ＜ 1.5 seven grades of leachings, vanadium liquid B must be leached by filtering；
Or：When the slurry A containing vanadium leaching is 2.5≤pH ＜ 3, Pyatyi leaching is directly carried out；The slurry that Pyatyi is leached
Separation, obtain leaching vanadium liquid A and residue, it is residue obtained mixed with water, slurry B is leached with vanadium must be contained, then pass sequentially through regulation
Slurry pH, the six of 1.5≤pH ＜ 2.5 grade leaching successively, 1.0≤pH ＜ 1.5 seven grades of leachings, vanadium liquid B must be leached by filtering；
Or：The pH for adjusting the A containing vanadium leaching slurry is 1.5≤pH ＜ 2.5, directly carries out six grades of leachings, then pass through regulation
Slurry pH, 1.0≤pH ＜ 1.5 seven grades of leachings are carried out, vanadium liquid A must be leached by filtering；
Or：The pH for adjusting the A containing vanadium leaching slurry is 1.0≤pH ＜ 1.5, directly carries out seven grades of leachings, filtering to leach
Vanadium liquid A.
The explanation leached with reference to the present invention to one-level to Pyatyi, six grades are leached below and seven grades of leachings are specifically solved
Release：
6th, regulation is 1.5≤pH ＜ 2.5 containing the pH that vanadium leaches slurry A, carries out six grades of leachings, and leaching product is lurid
Containing VO2 +Leach slurry；
1.5≤pH ＜ 2.5：VO3 -(colourless)+2H+→VO2 +(light yellow)+H2O
7th, regulation is 1.0≤pH ＜ 1.5 containing the pH that vanadium leaches slurry A, carries out seven grades of leachings, leaches product and contains to be orange
HV10O28 5-Leach slurry；
1.0≤pH ＜ 1.5：10VO2 +(light yellow)+8H2O→HV10O28 5-(orange)+15H+
Now if pH controls too low (pH≤1), then it can occur to hydrolyze precipitation, produce brick-red solid：
pH≤1：2VO2 +(light yellow)+2H2O→V2O5·H2O (brick-red solid)+2H+
One-level to Pyatyi is leached mainly for high vanadium clinker in the inventive method, and full content of vanadium (TV meters) is 6~10%；Six
For level to seven grades of leachings mainly for low vanadium clinker, full content of vanadium (TV meters) is 1~5%；And for middle vanadium clinker, full content of vanadium
When (TV meters) is 5~6%, then it can be leached by high vanadium clinker, can also be leached by low vanadium clinker, can in actual production
According to the finally accumulative V leaching rate of clinker, optimal Leaching way is selected.
In the inventive method, one to Pyatyi leaching is true with clinker gained mixed with water A containing vanadium leaching slurry actual pH
Fixed initial leaching rank；Containing vanadium leach the soluble acidic material that the actual pH of slurry depended in clinker number, clinker and water
Phase mass volume ratio, aqueous phase pH etc.；It is determined that after initially leaching rank, then pass sequentially through regulation slurry pH and carry out subsequent level leaching
Go out, for example, when it is determined that since one-level leach start when, leached through one-level, then pass sequentially through regulation slurry pH, successively progress two to five
Level leaches, the slurry filtration that Pyatyi is leached, and can obtain leaching vanadium liquid A；In another example when it is determined that since two level leach start when, pass through
Two level leaches, then passes sequentially through regulation slurry pH, carries out three successively and is leached to Pyatyi, the slurry filtration that Pyatyi is leached can
Obtain leaching vanadium liquid A.
When clinker is after one to Pyatyi leaches, it is also necessary to when carrying out six grades and seven grades leachings again, due to being leached by Pyatyi
Vanadium concentration is higher (vanadium concentration is not less than 25g/L, in terms of V) in obtained slurry, adds up V leaching rate up to more than 90%, now
If directly carrying out six grades of leachings, pH is controlled into too low (1.5≤pH ＜ 2.5 or pH≤1), hydrolysis precipitation easily occurs, on the contrary
Influence V leaching rate；Therefore, the slurry for now needing to leach Pyatyi separates, and obtains leaching vanadium liquid A and residue, it is residue obtained with
Aqueous phase is mixed, and slurry B is leached with that must contain vanadium, then passes sequentially through regulation slurry pH, and the six of 1.5≤pH ＜ 2.5 grade leach successively,
1.0≤pH ＜ 1.5 seven grades of leachings, vanadium liquid B must be leached by filtering, and it is low concentration vanadium liquid to leach vanadium liquid B, classification can be used as to leach
In aqueous phase be used for multiple times.
In addition, being found through practice, slurry A is leached after Pyatyi leaches containing vanadium, filters residue obtained middle V5+Content compared with
It is few, it can now choose whether to carry out subsequent hierarchical leaching with needs of production；In view of factors such as costs, it is classified by a wheel
Leaching residue obtained middle content of vanadium amount typically will not be too many, then can add up residue, when residue reaches it is a certain amount of after, then carry out six
Level and seven grades of leachings；Also residue can be mixed with water, is formulated as the slurry of the vanadium liquid containing low concentration, mixed as with calcification baking clinker
The aqueous phase of conjunction.
After clinker is mixed with water, when leaching slurry A needs since being leached six grades or seven grades containing vanadium, due to now containing
The pH that vanadium leaches slurry A is higher, it is therefore desirable to the pH that slurry A is leached containing vanadium is adjusted into the corresponding pH requirements for leaching rank, then entered
Six grades or seven grades leachings of row.
For high vanadium clinker or middle vanadium clinker, terminal product is that the darkorange that filtering gained is leached through Pyatyi leaches vanadium liquid
(contain H2V10O28 4-), that is, vanadium liquid A is leached, and/or the orange leaching vanadium liquid leached through seven grades obtained by filtering (contains HV10O28 5-), i.e.,
Leach vanadium liquid B；Although (contain HV with regard to orange leaching vanadium liquid can be obtained through level Four product10O28 5-), but due to vanadium concentration in the vanadium liquid
It is relatively low, therefore still need to continue Pyatyi leaching, so as to obtain the leaching vanadium liquid A of high concentration；For low vanadium clinker or middle vanadium
Clinker, terminal product are that the orange leaching vanadium liquid that gained is leached through seven grades (contains HV10O28 5-), that is, leach vanadium liquid A.
Aqueous phase described in the inventive method is at least one of water or low concentration vanadium liquid；The pH of wherein low concentration vanadium liquid is
2.5~4.0, vanadium concentration is 3~8g/L (in terms of V)；Which kind of therefore in actual production, can select that water used as the case may be
Phase；In the present invention involved liquid-solid ratio be aqueous phase by volume, solid is by mass.
It is higher due to leaching rank content of vanadium since the calcification baking clinker one to Pyatyi leaches, leach slurry containing vanadium
In A content of vanadium it is higher, it is necessary to liquid-solid ratio it is bigger；Leach rank vanadium since the calcification baking clinker six grades or seven grades are leached
Content is relatively low, in slurry content of vanadium it is lower, it is necessary to liquid-solid ratio it is smaller；Therefore, when classification is leached from one-level, two level, three-level, four
When level or Pyatyi start to leach, described leaches slurry A to be not less than by aqueous phase with calcification baking clinker by liquid-solid ratio containing vanadium
2.5, preparation obtains；When classification, which is leached, is leached since six grades or seven grades, the A containing vanadium leaching slurry is by aqueous phase and calcification
It is calcined clinker and is not less than 2.0 by liquid-solid ratio, preparation obtains；It is described to leach slurry B containing vanadium to be pressed by aqueous phase and calcification baking clinker
Liquid-solid ratio is not less than 2.0, and preparation obtains.
Calcification baking clinker main Types are (Ca, Mn) V2O7And/or Ca2V2O7, or Ca (VO3)2；When calcification baking clinker
Product is (Ca, Mn) V2O7Or Ca2V2O7At least one of when, according to it is above-mentioned to classification leach explanation it can be seen from, (Ca, Mn)
V2O7、Ca2V2O7With with two level Leach reaction thing identical cation, therefore one-level leaching need not be carried out again, but by aqueous phase
Mixed with calcification baking clinker by liquid-solid ratio 2.67~3, obtain leaching slurry A, directly since the second level, Pyatyi knot containing vanadium
Beam, it is filtrated to get and leaches vanadium liquid A, residue carries out six grades and seven grades leachings again；When calcification baking clinker product is Ca (VO3)2When,
It can be seen from the above-mentioned explanation leached to classification, Ca (VO3)2With with six grades of Leach reaction thing identical cations, can be by water
Mutually mixed with calcification baking clinker by liquid-solid ratio 2.1~2.5, obtain leaching slurry A containing vanadium, adjust the pH that slurry A is leached containing vanadium
For 1.5≤pH ＜ 2.5, directly since the 6th grade, seven grades are terminated, and vanadium liquid A must be leached by filtering；Other compounds, such as Fe
(VO3)2、Mn(VO3)2Deng, be referred to method choice leach rank.
From above-mentioned explanation, as V in calcification baking clinker5+Existence form there is phase with one to seven grade of Leach reaction thing
, then can be mixed with water by calcification baking clinker during with cation, the corresponding pH for leaching rank is formulated as, is directly carried out corresponding
The leaching of rank, so as to flexible selectively leaching rank, classification number is reduced, reduces cost.
The inventive method uses mass concentration to carry out classification leaching, caused reaction heat for 30~65% sulphur acid for adjusting pH
Measure moderate, avoid because extraction temperature is higher, leach and precipitation phenomenon occurs, caused vanadium loss.
In the inventive method, V5+Existence form and color in different leaching pH can fast transition, in order to improve vanadium
Leaching rate, while the time is saved, the extraction time of every grade of leaching is 5~10min.
The present invention is described in further detail below by embodiment, but therefore not limited the scope of the present invention
Among described scope of embodiments.
Add up leaching rate={ 1- [residue TV- (clinker TV- clinkers V in the embodiment of the present invention5+)] ÷ clinkers V5+}×
100%.
Embodiment 1
Calcification baking clinker is taken, its full content of vanadium (TV meters) is 9.75% after testing, clinker V5+For 8.86%, by water and calcium
Salt roasting clinker is mixed by liquid-solid ratio 2.5, is obtained the vanadium that contains that pH is 11.5 and is leached slurry A, carries out classification leaching, vanadium during classification is leached
Content and vanadium add up leaching rate and are shown in Table 1；It is as follows to be classified leaching operation：
Vanadium will be contained and leach slurry A progress one-level leachings, extraction time 10min, product is leached and contain V for colourless2O7 4-Leaching
Go out slurry；
Gained colourless leach is leached to one-level the sulfuric acid that mass concentration is 38% is added in slurry, adjust slurry pH to 7.5,
Two level leaching is carried out, extraction time 10min, product is leached and contains V for colourless4O12 4-Leach slurry；
Gained colourless leach is leached to two level the sulfuric acid that mass concentration is 38% is added in slurry, adjust slurry pH to 6.5,
Three-level leaching is carried out, extraction time 10min, product is leached and contains V for orange10O28 6-Leach slurry；
Gained orange leach is leached to three-level the sulfuric acid that mass concentration is 38% is added in slurry, adjust slurry pH to 4.5,
Level Four leaching is carried out, extraction time 10min, product is leached and contains HV for orange10O28 5-Leach slurry；
Gained orange leach is leached to level Four the sulfuric acid that mass concentration is 38% is added in slurry, adjust slurry pH to 2.8,
Pyatyi leaching is carried out, extraction time 10min, product is leached and contains H for darkorange2V10O28 4-Leach slurry；
Slurry A is leached containing vanadium to leach by one-level to Pyatyi, adds up V leaching rate up to 96.39%, Pyatyi leaches gained
Darkorange leach slurry in vanadium concentration it is higher (vanadium concentration 34.89g/L, in terms of V), if directly carry out six grades leach, easily
Generation hydrolyzes precipitation；
Pyatyi leaching gained darkorange is leached into slurry filtration, obtains and leaches vanadium liquid A and residue, leaching vanadium liquid A is highly concentrated
Vanadium liquid is spent, follow-up precipitation process is can be directly used for and uses；Residue is then mixed with water by liquid-solid ratio 2.0, and slurry is leached with that must contain vanadium
B, add the sulfuric acid that mass concentration is 38% and adjust slurry pH to 1.8, carry out six grades of leachings, extraction time 10min, leach production
Product contain VO to be lurid2 +Leach slurry；
To six grades leach gained it is light yellow leach slurries in add mass concentration be 38% sulfuric acid, regulation slurry pH to
1.2, seven grades of leachings are carried out, extraction time 10min, leaching product is orange HV10O28 5-Leach slurry；Will be orange
HV10O28 5-Slurry filtration is leached, vanadium liquid B must be leached；It is low concentration vanadium liquid (concentration is 3~8g/L, in terms of V) to leach vanadium liquid B, can
Aqueous phase in being leached as classification is used for multiple times, and it is high concentration vanadium liquid to treat concentration enrichment (vanadium concentration is not less than 25g/L, in terms of V)
When, it is used further to precipitation process.
The content of vanadium of table 1 and vanadium add up leaching rate
From the data in table 1, it can be seen that the present embodiment calcification baking clinker leaches by one to Pyatyi, accumulative V leaching rate reaches
96.39%, then by six to seven grades of leachings, add up V leaching rate up to 99.66%, greatly improve clinker V leaching rate.
Embodiment 2
Calcification baking clinker is taken, its full content of vanadium (TV meters) is 7.78% after testing, clinker V5+For 6.68%, by low concentration
Vanadium liquid (vanadium concentration is 3.26g/L, in terms of V) is mixed with calcification baking clinker by liquid-solid ratio 2.5, is obtained the vanadium that contains that pH is 6.5 and is leached
Slurry A, classification leaching is carried out, content of vanadium and the accumulative leaching rate of vanadium are shown in Table 2 during classification is leached；It is as follows to be classified leaching operation：
Vanadium will be contained and leach slurry A progress three-level leachings, extraction time 10min, product is leached and contain V for orange10O28 6-
Leach slurry；
Gained orange leach is leached to three-level the sulfuric acid that mass concentration is 38% is added in slurry, adjust slurry pH to 4.5,
Level Four leaching is carried out, extraction time 10min, product is leached and contains HV for orange10O28 5-Leach slurry；
Gained orange leach is leached to level Four the sulfuric acid that mass concentration is 38% is added in slurry, adjust slurry pH to 2.8,
Pyatyi leaching is carried out, extraction time 10min, product is leached and contains H for darkorange2V10O28 4-Leach slurry；
Slurry is leached containing vanadium to leach by three-level to Pyatyi, adds up V leaching rate up to 91.47%, Pyatyi leaches gained
Vanadium concentration is higher (vanadium concentration is 28.57g/L) in darkorange leaching vanadium liquid, directly carries out six grades of leachings, and easily generation hydrolyzes heavy
Vanadium；
Pyatyi is leached into gained darkorange and leaches slurry filtration, vanadium liquid A and residue must be leached, it is high concentration to leach vanadium liquid A
Vanadium liquid, it can be directly used for follow-up precipitation process and use；Residue then presses liquid with low concentration vanadium liquid (vanadium concentration is 3.26g/L, in terms of V)
Admittedly than 2.0 mixing, slurry B is leached with vanadium must be contained, the sulfuric acid that mass concentration is 38% is added and adjusts slurry pH to 1.8, carry out six
Level leaches, extraction time 10min, leaches product and contains VO to be lurid2 +Leach slurry；
To six grades leach gained it is light yellow leach slurries in add mass concentration be 38% sulfuric acid, regulation slurry pH to
1.2, seven grades of leachings are carried out, extraction time 10min, leaching product is orange HV10O28 5-Leach slurry；Will be orange
HV10O28 5-Slurry filtration is leached, vanadium liquid B must be leached；It is low concentration vanadium liquid (vanadium concentration is 4.97g/L, in terms of V) to leach vanadium liquid B,
Aqueous phase in being leached as classification is used for multiple times, and treats that (vanadium concentration is not less than 25g/L to concentration enrichment, with V for high concentration vanadium liquid
Meter) when, it is used further to precipitation process.
The content of vanadium of table 2 and vanadium add up leaching rate
From the data in table 2, it can be seen that the present embodiment calcification baking clinker leaches by three to Pyatyi, accumulative V leaching rate reaches
91.47%, then through six to seven grades of leachings, add up V leaching rate up to 98.65%, greatly improve clinker V leaching rate.
Embodiment 3
Calcification baking clinker is taken, its full content of vanadium (TV meters) is 4.85% after testing, clinker V5+For 3.78%, by embodiment
It is mixed by liquid-solid ratio 2.0 with calcification baking clinker that 2 gained leach vanadium liquid B (i.e. low concentration vanadium liquid, vanadium concentration is 4.97g/L, in terms of V)
Close, obtain and leach slurry A containing vanadium, carry out classification leaching, content of vanadium and the accumulative leaching rate of vanadium are shown in Table 2 during classification is leached；Classification is leached
Operation is as follows：
The sulfuric acid regulation slurry pH to 1.8 that mass concentration is 38% is added in slurry A to being leached containing vanadium, carries out six grades of leachings
Go out, extraction time 10min, leach product as light yellow leaching vanadium liquid (VO2 +)；
To six grades leach gained it is light yellow leach slurries in add mass concentration be 38% sulfuric acid, regulation slurry pH to
1.2, seven grades of leachings are carried out, extraction time 10min, leach product as orange leaching vanadium liquid (HV10O28 5-)；
The orange leaching slurry filtration of gained will be leached through seven grades, that is, obtain the leaching vanadium liquid of the present embodiment calcification baking clinker
A, leach vanadium liquid A and can be directly used for follow-up precipitation technique；The present embodiment calcification baking clinker adds up vanadium by six to seven grades of leachings
Leaching rate greatly improves clinker V leaching rate up to 97.88%.
The content of vanadium of table 3 and vanadium add up leaching rate
| Leach series | Leach pH | Clinker TV/% | Clinker V5+/ % | Residue TV/% | Accumulative leaching rate/% |
| 6th grade | [1.5,2.5) | 4.85 | 3.78 | 2.35 | 66.14 |
| 7th grade | [1,1.5) | 1.15 | 97.88 |
Claims (9)
1. the method that vanadium classification is leached, it is characterised in that：Comprise the following steps：
Aqueous phase and calcification baking clinker are mixed to get and leach slurry A containing vanadium, classification leaching is carried out according to slurry pH successively；It is described
The one-level leaching for including 10≤pH ＜ 13 is leached in classification, and 7≤pH ＜ 10 two level leaches, and 6≤pH ＜ 7 three-level leaches, 4≤pH
＜ 5 level Four leaches, and 2.5≤pH ＜ 3 Pyatyi leaches；It is described classification leach operation be：
When the slurry A containing vanadium leaching is 10≤pH ＜ 13, one-level leaching is carried out, then passes sequentially through regulation slurry pH, carries out 7 successively
≤ pH ＜ 10 two level leaches, and 6≤pH ＜ 7 three-level leaches, and 4≤pH ＜ 5 level Four leaches, 2.5≤pH ＜ 3 Pyatyi leaching
Go out, vanadium liquid A must be leached by filtering；
Or：When the slurry A containing vanadium leaching is 7≤pH ＜ 10, two level leaching is directly carried out, then passes sequentially through regulation slurry pH,
The three-level for carrying out 6≤pH ＜ 7 successively leaches, and 4≤pH ＜ 5 level Four leaches, and 2.5≤pH ＜ 3 Pyatyi leaches, and filtering to leach
Vanadium liquid A；
Or：When the slurry A containing vanadium leaching is 6≤pH ＜ 7, three-level leaching is directly carried out, then passes sequentially through regulation slurry pH, according to
4≤pH of secondary progress ＜ 5 level Four is leached, and 2.5≤pH ＜ 3 Pyatyi is leached, and vanadium liquid A must be leached by filtering；
Or：When the slurry A containing vanadium leaching is 4≤pH ＜ 5, level Four leaching is directly carried out, then passes sequentially through regulation slurry pH, is entered
2.5≤pH of row ＜ 3 Pyatyi is leached, and vanadium liquid A must be leached by filtering；
Or：When the slurry A containing vanadium leaching is 2.5≤pH ＜ 3, Pyatyi leaching is directly carried out, vanadium liquid A must be leached by filtering.
2. the method that vanadium classification according to claim 1 is leached, it is characterised in that：It is described classification leach also include 1.5≤
PH ＜ 2.5 six grades of leachings, 1.0≤pH ＜ 1.5 seven grades of leachings, the operation that the classification is leached are：
When the slurry A containing vanadium leaching is 10≤pH ＜ 13, one-level leaching is carried out, then passes sequentially through regulation slurry pH, carries out 7 successively
≤ pH ＜ 10 two level leaches, and 6≤pH ＜ 7 three-level leaches, and 4≤pH ＜ 5 level Four leaches, 2.5≤pH ＜ 3 Pyatyi leaching
Go out；The slurry that Pyatyi is leached separates, and obtains leaching vanadium liquid A and residue, residue obtained mixed with water, with must contain vanadium leached material
B is starched, then passes sequentially through regulation slurry pH, the six of 1.5≤pH ＜ 2.5 grade leach successively, 1.0≤pH ＜ 1.5 seven grades of leachings, mistake
Vanadium liquid B must be leached by filtering；
Or：When the slurry A containing vanadium leaching is 7≤pH ＜ 10, two level leaching is directly carried out, then passes sequentially through regulation slurry pH,
The three-level for carrying out 6≤pH ＜ 7 successively leaches, and 4≤pH ＜ 5 level Four leaches, and 2.5≤pH ＜ 3 Pyatyi leaches；Pyatyi is leached
Slurry separation, obtain leaching vanadium liquid A and residue, it is residue obtained mixed with water, leach slurry B with vanadium must be contained, then lead to successively
Slurry pH is overregulated, the six of 1.5≤pH ＜ 2.5 grade are leached successively, and 1.0≤pH ＜ 1.5 seven grades of leachings, vanadium liquid must be leached by filtering
B；
Or：When the slurry A containing vanadium leaching is 6≤pH ＜ 7, three-level leaching is directly carried out, then passes sequentially through regulation slurry pH, according to
4≤pH of secondary progress ＜ 5 level Four leaches, and 2.5≤pH ＜ 3 Pyatyi leaches；The slurry that Pyatyi is leached separates, and obtains Leaching Vanadium
Liquid A and residue, it is residue obtained mixed with water, slurry B is leached with vanadium must be contained, then regulation slurry pH is passed sequentially through, successively 1.5≤
PH ＜ 2.5 six grades of leachings, 1.0≤pH ＜ 1.5 seven grades of leachings, vanadium liquid B must be leached by filtering；
Or：When the slurry A containing vanadium leaching is 4≤pH ＜ 5, level Four leaching is directly carried out, then by adjusting slurry pH, carry out
2.5≤pH ＜ 3 Pyatyi leaches；The slurry that Pyatyi is leached separates, and obtains leaching vanadium liquid A and residue, residue obtained and aqueous phase
Mixing, slurry B leaching with vanadium must be contained, then pass sequentially through regulation slurry pH, the six of 1.5≤pH ＜ 2.5 grade leach successively, 1.0≤
PH ＜ 1.5 seven grades of leachings, vanadium liquid B must be leached by filtering；
Or：When the slurry A containing vanadium leaching is 2.5≤pH ＜ 3, Pyatyi leaching is directly carried out；The slurry that Pyatyi is leached separates,
Obtain leaching vanadium liquid A and residue, it is residue obtained mixed with water, slurry B is leached with vanadium must be contained, then pass sequentially through regulation slurry
PH, the six of 1.5≤pH ＜ 2.5 grade leaching successively, 1.0≤pH ＜ 1.5 seven grades of leachings, vanadium liquid B must be leached by filtering；
Or：The pH for adjusting the A containing vanadium leaching slurry is 1.5≤pH ＜ 2.5, directly carries out six grades of leachings, then by adjusting slurry
PH, 1.0≤pH ＜ 1.5 seven grades of leachings are carried out, vanadium liquid A must be leached by filtering；
Or：The pH for adjusting the A containing vanadium leaching slurry is 1.0≤pH ＜ 1.5, directly carries out seven grades of leachings, vanadium liquid must be leached by filtering
A。
3. the method that vanadium classification according to claim 1 or 2 is leached, it is characterised in that：The aqueous phase is water or low concentration
At least one of vanadium liquid；The pH of the low concentration vanadium liquid is 2.5~4.0, and vanadium concentration is 3~8g/L.
4. the method that the vanadium classification according to any one of claims 1 to 3 is leached, it is characterised in that：When classification is leached from one
When level, two level, three-level, level Four or Pyatyi start to leach, described leaches slurry A to be pressed by aqueous phase and calcification baking clinker containing vanadium
Liquid-solid ratio is not less than 2.5, and preparation obtains；For aqueous phase by volume, solid is by mass for the liquid-solid ratio.
5. the method that the vanadium classification according to Claims 2 or 3 is leached, it is characterised in that：When classification is leached from six grades or seven
When level starts to leach, the A containing vanadium leaching slurry is to be not less than 2.0 by liquid-solid ratio by aqueous phase and calcification baking clinker, with obtained
Arrive；Described to leach slurry B containing vanadium to be not less than 2.0 by liquid-solid ratio by aqueous phase and residue, preparation obtains；The liquid-solid ratio is aqueous phase
By volume, solid is by mass.
6. the method that the vanadium classification according to any one of claims 1 to 3 is leached, it is characterised in that：When calcification baking clinker
For (Ca, Mn) V2O7Or Ca2V2O7At least one of when, aqueous phase is mixed with calcification baking clinker by liquid-solid ratio 2.67~3, obtained
Slurry A is leached to containing vanadium, is directly leached since leaching two level；For aqueous phase by volume, solid is by mass for the liquid-solid ratio.
7. the method that the vanadium classification according to Claims 2 or 3 is leached, it is characterised in that：When calcification baking clinker is Ca
(VO3)2When, aqueous phase is mixed with calcification baking clinker by liquid-solid ratio 2.1~2.5, obtains leaching slurry A containing vanadium, regulation is soaked containing vanadium
The pH for going out slurry A is 1.5≤pH ＜ 2.5, is directly leached since being leached six grades；The liquid-solid ratio be aqueous phase by volume, Gu
Body is by mass.
8. the method that the vanadium classification according to any one of claim 1~7 is leached, it is characterised in that：Use mass concentration for
30~65% sulphur acid for adjusting pH.
9. the method that the vanadium classification according to any one of claim 1~8 is leached, it is characterised in that：The leaching of every grade of leaching
Time is 5~10min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710942560.2A CN107475518B (en) | 2017-10-11 | 2017-10-11 | A kind of method that vanadium classification is leached |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710942560.2A CN107475518B (en) | 2017-10-11 | 2017-10-11 | A kind of method that vanadium classification is leached |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107475518A true CN107475518A (en) | 2017-12-15 |
| CN107475518B CN107475518B (en) | 2019-02-19 |
Family
ID=60605380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710942560.2A Active CN107475518B (en) | 2017-10-11 | 2017-10-11 | A kind of method that vanadium classification is leached |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107475518B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2090640C1 (en) * | 1995-10-25 | 1997-09-20 | Акционерное общество открытого типа "Ванадий-Тулачермет" | Method of recovering vanadium from slags |
| CN101412539A (en) * | 2008-11-18 | 2009-04-22 | 攀钢集团研究院有限公司 | Clean production process for vanadium oxide |
| CN105219976A (en) * | 2015-11-19 | 2016-01-06 | 攀钢集团西昌钢钒有限公司 | Improve the method for vanadium slag calcification baking grog leaching yield |
| CN105274336A (en) * | 2015-11-27 | 2016-01-27 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for stabilizing leaching solution in calcification vanadium extraction process |
| CN106987716A (en) * | 2017-06-05 | 2017-07-28 | 攀钢集团研究院有限公司 | The continuous acidic leaching method of vanadium slag calcification baking clinker |
-
2017
- 2017-10-11 CN CN201710942560.2A patent/CN107475518B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2090640C1 (en) * | 1995-10-25 | 1997-09-20 | Акционерное общество открытого типа "Ванадий-Тулачермет" | Method of recovering vanadium from slags |
| CN101412539A (en) * | 2008-11-18 | 2009-04-22 | 攀钢集团研究院有限公司 | Clean production process for vanadium oxide |
| CN105219976A (en) * | 2015-11-19 | 2016-01-06 | 攀钢集团西昌钢钒有限公司 | Improve the method for vanadium slag calcification baking grog leaching yield |
| CN105274336A (en) * | 2015-11-27 | 2016-01-27 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for stabilizing leaching solution in calcification vanadium extraction process |
| CN106987716A (en) * | 2017-06-05 | 2017-07-28 | 攀钢集团研究院有限公司 | The continuous acidic leaching method of vanadium slag calcification baking clinker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107475518B (en) | 2019-02-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104342567B (en) | High calcium is containing the method for vanadium material vanadium extraction | |
| CN103073061B (en) | Method for extracting tungsten and molybdenum in high molybdenum scheelite | |
| Li et al. | Removal of V (V) from aqueous Cr (VI)-bearing solution using anion exchange resin: Equilibrium and kinetics in batch studies | |
| CN102828025B (en) | Method for extracting V2O5 from stone coal navajoite | |
| CN105597946A (en) | Comprehensive recovery method for tungsten accompanying fluorite resources | |
| CN107245582B (en) | A method of recycling iron, zinc from waste hydrochloric acid | |
| CN105331832A (en) | Acid-leaching washing method for vanadium-containing roasting clinker | |
| CN101914678A (en) | Method for producing industry molybdenum oxide from molybdenum concentrate | |
| CN110358932A (en) | A kind of high silicate zinc concentrate hydrometallurgical processes | |
| CN103922396B (en) | The technique of rutile titanium white powder produced by a kind of low-grade titanium ore | |
| CN103074490A (en) | Purification method in electrolytic metal manganese production process by multi-mine method | |
| CN102634662B (en) | Method for low-temperature deironing by using mixed gas of air and sulfur dioxide (SO2) | |
| CN104261473A (en) | Method for preparing vanadium pentoxide | |
| CN102515134B (en) | Production technology of food-grade phosphoric acid with hydrochloric acid method | |
| CN102674284B (en) | Method for producing industrial monoammonium phosphate co-produced fertilizer grade monoammonium phosphate by extracted spent acid | |
| CN104862503B (en) | The method that scandium is extracted from lateritic nickel ore | |
| CN110157927A (en) | A kind of no ammonium precipitation vanadium method | |
| CN111100996B (en) | Method for preparing vanadium oxide from acidic low-concentration vanadium liquid | |
| CN107697893A (en) | Improve the method for calcium leaching efficiency and its product and application in phosphorus ore | |
| CN107475518A (en) | A kind of method that vanadium classification is leached | |
| CN108975376B (en) | Method and device for comprehensively utilizing scheelite slag resources | |
| CN104831062B (en) | The method that valuable element is extracted using iron concentrate | |
| CN106086408A (en) | A kind of separate the method for ferrum and vanadium in vanadic acid immersion | |
| CN110983051A (en) | Backwashing enrichment method for low-concentration vanadium liquid | |
| CN102962143A (en) | Preparation method of phosphorite carbonate mineral collector |
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 | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180125 Address after: 617000 Panzhihua City, Sichuan Province, panping Pangang Group, the East District of Sichuan Province, vanadium and titanium group Applicant after: PANGANG GROUP STEEL VANADIUM & TITANIUM CO., LTD. Address before: 617067 Panzhihua East District of Sichuan Province, Wapu green Panzhihua Iron and Steel Group vanadium Co., Ltd. Applicant before: Pangang Group Vanadium Industry Co Ltd |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |