CN102492832A - Method for roasting vanadium-containing bone coal by utilization of rich oxygen - Google Patents
Method for roasting vanadium-containing bone coal by utilization of rich oxygen Download PDFInfo
- Publication number
- CN102492832A CN102492832A CN2011104570301A CN201110457030A CN102492832A CN 102492832 A CN102492832 A CN 102492832A CN 2011104570301 A CN2011104570301 A CN 2011104570301A CN 201110457030 A CN201110457030 A CN 201110457030A CN 102492832 A CN102492832 A CN 102492832A
- Authority
- CN
- China
- Prior art keywords
- roasting
- raw material
- oxygen
- coal
- contain
- 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
Images
Abstract
The invention discloses a method for roasting vanadium-containing bone coal by the utilization of rich oxygen, comprising the following steps of: mixing raw bone coal ore or pre-decarburized bone coal ash with an additive, crushing, carrying out fine grinding, adding a binder, uniformly mixing, followed by ball formation, drying raw material balls, allowing oxygen-rich air with the oxygen content being 30-60% to enter, roasting at the temperature of 750-950 DEG C for 1-4 hours, and cooling to obtain a clinker for V205 leaching. By oxygen-rich roasting, the method provided by the invention has advantages of high conversion rate, high leaching rate of the clinker, short roasting time, and helps raise the production power.
Description
Technical field
The present invention relates to the method that a kind of roasting contains the scherbinaite coal, relate in particular to a kind of method of utilizing oxygen-enriched air roasting to contain the scherbinaite coal.
Background technology
Vanadium is the HMP rare metal, has many premium propertiess, is important industrial raw material, is widely used in fields such as metallurgy, chemical industry, national defence.
General dispersion of navajoite resource and grade are not high, mainly comprise vanadium titano-magnetite and bone coal navajoite.Vanadium in the bone coal navajoite mainly exists with lower valency, and especially the trivalent vanadium compound with the equal indissoluble of soda acid exists.
At present, the more employing raw ore of the method for extracting vanadium from stone coal (or the lime-ash after the preparatory decarburization) roasting-leaching-vanadium liquid purification-precipitation calcining method.Roasting is the critical process in the extracting vanadium from stone coal process, and the conversion and the output of vanadium is had material impact.Roasting is typical gas-solid reaction, and the factor that influences the roasting transformation efficiency comprises bone coal mineral structure and granularity, maturing temperature and time, oxidizing atmosphere, additive types and quantity etc.In experimental study, generally roasting in air, promptly oxygen content is about 21%; In existing production technique, it is generally acknowledged in the roasting kiln discharging tail gas to contain oxygen that the possibility that is reducing atmosphere is arranged in the stove, and should strengthen wind supply quantity this moment, increases oxygen partial pressure, guarantees the oxidizing atmosphere in the stove less than 10% o'clock.Transformation efficiency is low, the grog leaching yield is low, roasting time long, production capacity is lower.
Summary of the invention
The oxygen-enriched air roasting that utilizes that the purpose of this invention is to provide a kind of transformation efficiency height, grog leaching yield height, roasting time weak point contains the method for scherbinaite coal.
The objective of the invention is to realize through following technical scheme:
The method of utilizing oxygen-enriched air roasting to contain the scherbinaite coal of the present invention comprises step:
The raw material that will contain vanadium mixes with additive, broken, fine grinding, adds then and processes raw material ball after sticker mixes;
Wherein, raw material, additive, sticker are prepared burden by following weight part:
Raw material: 70～90 parts; Additive: 4～20 parts; Sticker: 6～20 parts;
Said raw material comprises the stone coal ash of bone coal raw ore or preparatory decarburization;
Said raw material ball oven dry back is fed oxygen-enriched air roasting, and maturing temperature is controlled at 750 ℃～950 ℃, and oxygen content is controlled at 30%～60%, and roasting time was controlled at 1～4 hour, and the grog after the roasting is used for V after overcooling
2O
5Leaching.
Can find out by technique scheme provided by the invention; The method of utilizing oxygen-enriched air roasting to contain the scherbinaite coal of the present invention; Because 70～90 parts, 4～20 parts, 6～20 parts the raw material ball oven dry back that vanadium raw materials, additive, sticker be mixed and made into that contains is fed oxygen-enriched air roasting, and maturing temperature is controlled at 750 ℃～950 ℃, oxygen content is controlled at 30%～60%; Roasting time was controlled at 1～4 hour, and the grog after the roasting is used for V after overcooling
2O
5Leaching.Compare with roasting in the air, transformation efficiency is high, the grog leaching yield is high, roasting time is short, helps improving production capacity.
Description of drawings
Fig. 1 contains the process flow sheet of the specific embodiment of scherbinaite coal for the present invention utilizes oxygen-enriched air roasting.
Embodiment
The method of utilizing oxygen-enriched air roasting to contain the scherbinaite coal of the present invention, its preferable embodiment is as shown in Figure 1, comprises step:
The raw material that will contain vanadium mixes with additive, broken, fine grinding, adds then and processes raw material ball after sticker mixes;
Wherein, raw material, additive, sticker are prepared burden by following weight part:
Raw material: 70～90 parts; Additive: 4～20 parts; Sticker: 6～20 parts;
Said raw material comprises the stone coal ash of bone coal raw ore or preparatory decarburization;
Said raw material ball is fed oxygen-enriched air roasting, and maturing temperature is controlled at 750 ℃～950 ℃, and oxygen content is controlled at 30%～60%, and roasting time was controlled at 1～4 hour, and the low price vanadium in the bone coal is oxidized to the pentavalent vanadium, and the grog after the roasting is used for V after overcooling
2O
5Leaching.
Particle diameter after the said raw material fine grinding is controlled at 60～200 orders.
The diameter of said raw material ball is 10～30mm.
V in the said bone coal raw ore
2O
5Content more than or equal to 0.6%; The stone coal ash of said preparatory decarburization is the ash and the mixture of slag after the preparatory decarburization of bone coal raw ore, and wherein carbon content is less than or equal to 1%;
Said sticker is the organic or inorganic sticker, and said additive is one or both a mixture of sodium salt, calcium salt.
Compare with roasting in the air, the present invention has following beneficial effect:
(1) at a low price the vanadium transformation efficiency that changes the high price vanadium into increases, and corresponding leaching yield increases;
(2) adopt oxygen-enriched air roasting, accelerate oxygen to pellet internal divergence speed, roasting time shortens.
Through specific embodiment method of the present invention is carried out further detailed description below:
Specific embodiment one:
The somewhere bone coal obtains carbon containing 0.9%, contains V after 800 ℃ of preparatory decarburizations of burning
2O
51.3% lime-ash, with lime-ash and additive mix, broken, fine grinding, according to the weight ratio lime-ash: additive: after the ratio of sticker=75: 15: 10 mixes, process the raw material ball of diameter 20mm with shaper, and dry.Raw material ball after the oven dry is put into air and two kinds of atmosphere roastings of oxygen-rich air respectively, and oxygen content is respectively 21% and 60%, and maturing temperature is 800 ± 10 ℃; Roasting time is 2 hours; Grog after coming out of the stove is through overcooling, fragmentation, stirs dipping 4 hours at normal temperature, 6% dilute sulphuric acid, and leaching yield is respectively 69% and 75%; Be after oxygen level is increased to 60% from 21%, leaching yield improves 6%.
Specific embodiment two:
Somewhere bone coal raw ore, contains V at carbon containing 11%
2O
51.3%, with bone coal raw ore and additive mix, broken, fine grinding, according to the weight ratio raw ore: additive: after the ratio of sticker=70: 18: 12 mixes, be pressed into the raw material ball of diameter 20mm, and dry.Raw material ball after the oven dry is put into air and two kinds of atmosphere roastings of oxygen-rich air respectively, and oxygen content is respectively 21% and 40%, and maturing temperature is 760 ± 10 ℃; Roasting time is 2.5 hours; Grog after coming out of the stove is through overcooling, fragmentation, stirs dipping 4 hours at normal temperature, 8% dilute sulphuric acid, and leaching yield is respectively 61% and 73%; Be after oxygen level is increased to 40% from 21%, leaching yield improves 12%.
The above; Be merely the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technician who is familiar with the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (5)
1. a method of utilizing oxygen-enriched air roasting to contain the scherbinaite coal is characterized in that, comprises step:
The raw material that will contain vanadium mixes with additive, broken, fine grinding, adds then and processes raw material ball after sticker mixes;
Wherein, raw material, additive, sticker are prepared burden by following weight part:
Raw material: 70～90 parts; Additive: 4～20 parts; Sticker: 6～20 parts;
Said raw material comprises the stone coal ash of bone coal raw ore or preparatory decarburization;
Said raw material ball oven dry back is fed oxygen-enriched air roasting, and maturing temperature is controlled at 750 ℃～950 ℃, and oxygen content is controlled at 30%～60%, and roasting time was controlled at 1～4 hour, and the grog after the roasting is used for V after overcooling
2O
5Leaching.
2. the method for utilizing oxygen-enriched air roasting to contain the scherbinaite coal according to claim 1 is characterized in that, the particle diameter after the said raw material fine grinding is controlled at 60～200 orders.
3. the method for utilizing oxygen-enriched air roasting to contain the scherbinaite coal according to claim 2 is characterized in that, the diameter of said raw material ball is 10～30mm.
4. according to each described method of utilizing oxygen-enriched air roasting to contain the scherbinaite coal of claim 1 to 3, it is characterized in that V in the said bone coal raw ore
2O
5Content more than or equal to 0.6%;
The stone coal ash of said preparatory decarburization is the ash and the mixture of slag after the preparatory decarburization of bone coal raw ore, and wherein carbon content is less than or equal to 1%.
5. the method for utilizing oxygen-enriched air roasting to contain the scherbinaite coal according to claim 5 is characterized in that, said sticker is the organic or inorganic sticker, and said additive is one or both a mixture of sodium salt, calcium salt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104570301A CN102492832A (en) | 2011-12-30 | 2011-12-30 | Method for roasting vanadium-containing bone coal by utilization of rich oxygen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104570301A CN102492832A (en) | 2011-12-30 | 2011-12-30 | Method for roasting vanadium-containing bone coal by utilization of rich oxygen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102492832A true CN102492832A (en) | 2012-06-13 |
Family
ID=46184693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104570301A Pending CN102492832A (en) | 2011-12-30 | 2011-12-30 | Method for roasting vanadium-containing bone coal by utilization of rich oxygen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102492832A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102849751A (en) * | 2012-10-17 | 2013-01-02 | 安徽理工大学 | Method for desorbing residual carbon in siliceous dust by means of oxygen-enriched calcination and device therefor |
| CN107287410A (en) * | 2017-06-30 | 2017-10-24 | 重庆康普化学工业股份有限公司 | A kind of compound additive and its application method for being used to be calcined vanadium extraction |
| CN108048649A (en) * | 2017-12-11 | 2018-05-18 | 攀枝花钢城集团有限公司 | Pelletizing vanadium slag preparation method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1082118A (en) * | 1992-08-12 | 1994-02-16 | 湖南省洪江市黔城钒厂 | Settling process for extracting vanadium from bone coal |
| CN1184162A (en) * | 1996-12-06 | 1998-06-10 | 湖南省安化县东坪钒冶炼厂 | Vanadium pentoxide extracting method from stone coal vanadium ore |
| CN101012496A (en) * | 2007-02-08 | 2007-08-08 | 中南大学 | Method for extracting vanadium pentoxide from stone coal |
| CN101880764A (en) * | 2010-08-11 | 2010-11-10 | 唐山奥特斯科技有限公司 | Process for roasting stone coal vanadium ore by tunnel car bottom furnace |
| CN102162041A (en) * | 2011-05-26 | 2011-08-24 | 吴道洪 | Method for roasting vanadium-containing stone coal by rotary hearth furnace |
-
2011
- 2011-12-30 CN CN2011104570301A patent/CN102492832A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1082118A (en) * | 1992-08-12 | 1994-02-16 | 湖南省洪江市黔城钒厂 | Settling process for extracting vanadium from bone coal |
| CN1184162A (en) * | 1996-12-06 | 1998-06-10 | 湖南省安化县东坪钒冶炼厂 | Vanadium pentoxide extracting method from stone coal vanadium ore |
| CN101012496A (en) * | 2007-02-08 | 2007-08-08 | 中南大学 | Method for extracting vanadium pentoxide from stone coal |
| CN101880764A (en) * | 2010-08-11 | 2010-11-10 | 唐山奥特斯科技有限公司 | Process for roasting stone coal vanadium ore by tunnel car bottom furnace |
| CN102162041A (en) * | 2011-05-26 | 2011-08-24 | 吴道洪 | Method for roasting vanadium-containing stone coal by rotary hearth furnace |
Non-Patent Citations (1)
| Title |
|---|
| 宁华等: "石煤提矾焙烧工艺分析", 《有色金属》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102849751A (en) * | 2012-10-17 | 2013-01-02 | 安徽理工大学 | Method for desorbing residual carbon in siliceous dust by means of oxygen-enriched calcination and device therefor |
| CN107287410A (en) * | 2017-06-30 | 2017-10-24 | 重庆康普化学工业股份有限公司 | A kind of compound additive and its application method for being used to be calcined vanadium extraction |
| CN107287410B (en) * | 2017-06-30 | 2019-04-09 | 重庆康普化学工业股份有限公司 | It is a kind of for roasting the compound additive and its application method of vanadium extraction |
| CN108048649A (en) * | 2017-12-11 | 2018-05-18 | 攀枝花钢城集团有限公司 | Pelletizing vanadium slag preparation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103290215B (en) | Method for curing and leaching reinforced stone coal navajoite concentrated acid | |
| CN102399976B (en) | Roasting pretreatment process for extracting vanadium pentoxide from high-carbon scherbinaite-containing coal mine and vanadium pentoxide extracting method | |
| CN104611566B (en) | Method for recycling valuable metals in waste lithium ion batteries | |
| CN108714425B (en) | Flue gas desulfurization catalyst and application thereof in flue gas desulfurization of novel dry-method cement kiln decomposing furnace | |
| CN101215647B (en) | Roasting technique for extracting vanadium from stone coal vanadium ore | |
| CN110643838A (en) | Method for roasting vanadium slag by adopting calcium sulfate | |
| CN101892380A (en) | Method for preparing vanadium pentoxide and roasting additive used therein | |
| CN102923774A (en) | Method for adding high-calcium vanadium slag to perform sodium salt roasting | |
| CN102492832A (en) | Method for roasting vanadium-containing bone coal by utilization of rich oxygen | |
| CN102162041B (en) | Method for roasting vanadium-containing stone coal by rotary hearth furnace | |
| CN101857915A (en) | Pelletizing and calcination method for vanadium-containing stone coal ash | |
| CN106086487B (en) | Method for smelting molybdenum-nickel-iron alloy by desulfurizing, dearsenizing and calcining low-grade molybdenum-nickel ore | |
| CN104561526A (en) | High-all-vanadium sodium modification roasting method | |
| CN114014294A (en) | Method for preparing lithium iron phosphate by using pyrite and lithium iron phosphate material | |
| CN104232940A (en) | Technology for extracting vanadic anhydride from bone coal by wet method | |
| CN101552331A (en) | Preparation technique of lithium-ion battery anode material lithium iron phosphate | |
| CN104451202A (en) | Two-stage curing vanadium extraction method of stone coal vanadium ores | |
| CN104119983A (en) | Ferriferous copper based composite oxygen carrier and preparation method thereof | |
| CN103266230A (en) | Vanadium-containing stone coal shaft furnace oxygen-rich roasting system and method thereof | |
| CN105803221A (en) | Method for treating cobalt copper alloy by sulfuric acid | |
| CN205990444U (en) | Vanadium slag is carried out with the system of integrated treatment | |
| CN114890448A (en) | Resource treatment method of desulfurized gypsum | |
| CN107937710B (en) | Pyrolusite pyrogenic reduction method | |
| CN105327926B (en) | A kind of method that calcium iron dioxygen carrier is prepared by raw material of converter slag | |
| CN107098393B (en) | The preparation method of high-purity manganese monoxide |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120613 |