CN103627892A - Method for extracting vanadium from stone coal by utilizing fluidized bed - Google Patents
Method for extracting vanadium from stone coal by utilizing fluidized bed Download PDFInfo
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- CN103627892A CN103627892A CN201210308559.1A CN201210308559A CN103627892A CN 103627892 A CN103627892 A CN 103627892A CN 201210308559 A CN201210308559 A CN 201210308559A CN 103627892 A CN103627892 A CN 103627892A
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- vanadium
- stone coal
- roasting
- bed
- vanadate
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- 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 a method for extracting vanadium from stone coal by utilizing a fluidized bed. The method comprises the following steps: drying vanadium ore, crushing, mixing with a calcium powder additive, combusting, carrying out stirring leaching, carrying out purification press filtration, carrying out resin exchange, and precipitating vanadium by using an ammonium salt. The method simplifies the technology for extracting vanadium from stone coal, has low requirements on the technologic level of workers, has a high production efficiency, improves the production environment, is convenient for realizing large scale production, realizes the program control of the production process, changes the defects of unstable conversion rate and the like caused by past dependence on the manual operation, allows the vanadium extraction conversion rate to reach above 70%, and reduces the production cost.
Description
Technical field
The present invention relates to extract Vanadium Pentoxide in FLAKES method from bone coal.
Background technology
The roasting used of existing extracting vanadium from stone coal is mainly open hearth, converter, shaft furnace.Open hearth roasting, breeze needs balling-up, and roasting labor strength is large, and maturing temperature is controlled with workman's experience, error is large, and open hearth is in adding stove process, and fire door uncontrollable discharge is serious, and production environment is poor, come out of the stove by manually unloading, dust from flying, enters fermentation vat and also will lean on manual operation; Whole vanadium extracting process labour intensity is large, and vanadium transformation efficiency is unstable, and can not accomplish scale production.Converter has overcome enters stove and by experience and temperature, controls unstable disadvantage by artificial, operation, but converter can not be produced the bone coal that carbon containing is high, otherwise bone coal easily coking in burner hearth, caking in the process of roasting, cause converter normally not produce, and causes vanadium transformation efficiency unstable.Shaft roasting needs balling-up, manually adds ore deposit, manually comes out of the stove, labour intensity is large, uncontrollable discharge is serious, when can not burn the high bone coal of carbon content, also wants additional high-quality coal that heat is provided, and causes production cost too high.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of fluidized-bed extracting vanadium from stone coal method of utilizing is provided, comprise the steps:
1 bone coal ball mill crushing;
2 fully mix calcium powder additive with stone coal powder, and calcium powder additive and stone coal powder mass ratio are 4:96;
4 use conveying belt are sent into the bone coal mixing in fluidized-bed;
6 temperature are controlled under the condition of 850 ℃ carries out roasting, and roasting stone coal powder is sent in agitated pool with conveying belt again;
7 add sulfuric acid in agitated pool adjusts under the condition of PH=3, and the vanadium of pentavalent is leached, and then leach liquor is added to scavenging agent and precipitates purification, with being pumped into pressure filter;
8 filter, and accomplish that slag liquid is separated, acid positive resin for the solution containing vanadium body of separating;
9 adsorb, and with alkali, resolve, and obtain the vanadium liquid of high density, in vanadium liquid, add ammonium salt;
10 produce ammonium meta-vanadate precipitation, centrifugal with clear water washing;
11 obtain the ammonium meta-vanadate of purity >=98%, utilize fluiddized-bed roasting waste heat to dry roasting to ammonium meta-vanadate and obtain finished product Vanadium Pentoxide in FLAKES.
With fluidized-bed bone coal, improve transformation efficiency >=70% of vanadium, realize the sequencing of extracting vanadium from stone coal, the method of large-scale production, use the present invention, can reduce labour intensity, reduce balling-up, manually enter stove, manually come out of the stove, manually enter the links such as fermentation vat, only need 1/3rd of traditional process for extracting vanadium employment, fluiddized-bed roasting can realize the automatization of maturing temperature and state and control, calcium powder additive fully mixes in combustion processes with bone coal, improve the transformation efficiency of vanadium, overcome traditional vanadium extraction, when bone coal needs the defect of decarburization ability roasting, fluidized-bed can be dried ore with the heat producing in the high extracting vanadium from stone coal combustion processes of carbon content, toast inclined to one side vanadium, soak vanadium heating.Reduce production costs, in the time of total energy approach, additional income, particularly fluidized-bed in flue gas desulfurization, the aspect such as solidify and have unusual effect, alleviated flue gas treatment capacity and processing cost, environment purification.
Embodiment
1 bone coal ball mill crushing;
2, calcium powder additive is fully mixed with stone coal powder;
4, with conveying belt, the bone coal mixing is sent in fluidized-bed;
6, temperature is controlled under the condition of 850 ℃ and carries out roasting, and roasting stone coal powder is sent in agitated pool with conveying belt again;
7 add sulfuric acid in agitated pool adjusts under the condition of PH=3, and the vanadium of pentavalent is leached, and then leach liquor is added to scavenging agent and precipitates purification, with being pumped into pressure filter;
8 filter, and accomplish that slag liquid is separated, acid positive resin for the solution containing vanadium body of separating;
9 adsorb, and with alkali, resolve, and obtain the vanadium liquid of high density, in vanadium liquid, add ammonium salt;
10 produce ammonium meta-vanadate precipitation, centrifugal with clear water washing;
11 obtain the ammonium meta-vanadate of purity >=98%, utilize fluiddized-bed roasting waste heat to dry roasting to ammonium meta-vanadate and obtain finished product Vanadium Pentoxide in FLAKES.
Claims (1)
1. utilize a fluidized-bed extracting vanadium from stone coal method, it is characterized in that comprising the steps:
(1), bone coal ball mill crushing;
(2), calcium powder additive is fully mixed with stone coal powder, calcium powder additive and stone coal powder mass ratio are 4:96;
(4), with conveying belt, the bone coal mixing is sent in fluidized-bed;
(6), temperature is controlled under the condition of 850 ℃ and carries out roasting, roasting stone coal powder is sent in agitated pool with conveying belt again;
(7), in agitated pool, add sulfuric acid and adjust under the condition of PH=3, the vanadium of pentavalent is leached, then leach liquor is added to scavenging agent and precipitates purification, with being pumped into pressure filter;
(8), filter, accomplish that slag liquid is separated, acid positive resin for the solution containing vanadium body of separating;
(9), adsorb, with alkali, resolve, obtain the vanadium liquid of high density, in vanadium liquid, add ammonium salt;
(10), produce ammonium meta-vanadate precipitation, centrifugal with clear water washing;
(11), the ammonium meta-vanadate of purity >=98%, utilize fluiddized-bed roasting waste heat to dry roasting to ammonium meta-vanadate and obtain finished product Vanadium Pentoxide in FLAKES.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210308559.1A CN103627892A (en) | 2012-08-28 | 2012-08-28 | Method for extracting vanadium from stone coal by utilizing fluidized bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210308559.1A CN103627892A (en) | 2012-08-28 | 2012-08-28 | Method for extracting vanadium from stone coal by utilizing fluidized bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103627892A true CN103627892A (en) | 2014-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201210308559.1A Pending CN103627892A (en) | 2012-08-28 | 2012-08-28 | Method for extracting vanadium from stone coal by utilizing fluidized bed |
Country Status (1)
| Country | Link |
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| CN (1) | CN103627892A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103966467A (en) * | 2014-03-27 | 2014-08-06 | 湖南大学 | Chloride-free vanadium extraction process |
| CN113930609A (en) * | 2021-09-29 | 2022-01-14 | 重庆大学 | New method for extracting vanadium by calcining stone coal in fluidized bed and comprehensive utilization |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1079259A (en) * | 1992-05-26 | 1993-12-08 | 廖科君 | The process for extracting vanadium of adding calcium hydroxide |
| CN1752022A (en) * | 2005-08-12 | 2006-03-29 | 岳阳市中湘实业有限公司 | Method of extracting vanadium pentoxide from vanadium ore |
| CN1782108A (en) * | 2004-11-30 | 2006-06-07 | 戴许斌 | Method for producing vanadium by stone coal compound calcifying baking-low acid leaching-special ion exchanging |
| CN101054635A (en) * | 2007-05-28 | 2007-10-17 | 德物华经济信息研究院有限公司 | Method for extracting vanadium pentoxide from Stone-like coal vanadium ore and special device for the same |
-
2012
- 2012-08-28 CN CN201210308559.1A patent/CN103627892A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1079259A (en) * | 1992-05-26 | 1993-12-08 | 廖科君 | The process for extracting vanadium of adding calcium hydroxide |
| CN1782108A (en) * | 2004-11-30 | 2006-06-07 | 戴许斌 | Method for producing vanadium by stone coal compound calcifying baking-low acid leaching-special ion exchanging |
| CN1752022A (en) * | 2005-08-12 | 2006-03-29 | 岳阳市中湘实业有限公司 | Method of extracting vanadium pentoxide from vanadium ore |
| CN101054635A (en) * | 2007-05-28 | 2007-10-17 | 德物华经济信息研究院有限公司 | Method for extracting vanadium pentoxide from Stone-like coal vanadium ore and special device for the same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103966467A (en) * | 2014-03-27 | 2014-08-06 | 湖南大学 | Chloride-free vanadium extraction process |
| CN113930609A (en) * | 2021-09-29 | 2022-01-14 | 重庆大学 | New method for extracting vanadium by calcining stone coal in fluidized bed and comprehensive utilization |
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Application publication date: 20140312 |