CN101497946B - Composite calcination agent for extracting vanadium from vanadium ore - Google Patents
Composite calcination agent for extracting vanadium from vanadium ore Download PDFInfo
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- CN101497946B CN101497946B CN2008100467992A CN200810046799A CN101497946B CN 101497946 B CN101497946 B CN 101497946B CN 2008100467992 A CN2008100467992 A CN 2008100467992A CN 200810046799 A CN200810046799 A CN 200810046799A CN 101497946 B CN101497946 B CN 101497946B
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- vanadium
- ore
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Abstract
The invention relates to a compound roasting agent for extracting vanadium from vanadium ores, which is characterized by comprising the following compositions in percentage by weight by using ore weight as a base: 1 to 3 percent of sodium hydroxide, 1.2 to 3 percent of sodium chloride and 3 to 5 percent of calcium carbonate. The invention has the advantages that firstly, the emission of chlorine and hydrogen is up to the standard; secondly, the conversion rate of low-cost vanadium into high-cost vanadium is improved by 70 to 83 percent; and finally, the roasting agent consumption is less, andthe cost and freight are low.
Description
Technical field
The invention belongs to non-ferrous metal extracts.
Background technology
The large, medium and small type enterprise of present domestic vanadium extraction is a lot, big enterprise such as Flos Bombacis Malabarici vanadium factory etc., but medium and small sized enterprises are many.The vanadium-extracting roasting agent such as the Flos Bombacis Malabarici that adopt adopt sodium carbonate roasting, and cost is higher, but raw material is high-grade vanadium resource, V
2O
5Content reaches more than 10%, and cost seems and is not problem, and that the employing of vast medium and small sized enterprises is low-grade navajoite V
2O
5Only reach 0.X X%---2.X X% (being less than 3%), be mainly bone coal and contain the vanadine ore deposit, that adopts has traditional sodium-salt calcination method and a sodium salt sodium carbonate roasting method etc., sodium salt, yellow soda ash and these calcination agents of sodium salt yellow soda ash produce a large amount of chlorine and hydrogen chloride gas, serious environment pollution at roasting process.Turnover ratio is not high yet simultaneously, though cost is lower, State Environmental Protection Administration considers still to prohibite sodium-salt calcination from long-term interest.Advocate the calcination agent method of low sodium and higher recovery.This is as good as is good advocating, and benefits the nation and the people.In fact the present invention produces according to this aim, uses technology of the present invention that the roasting technology content of some medium and small sized enterprises is improved greatly.Pent enterprise is brought back to life, and production cost descends, and profit improves, and pollutes and reduces, and reaches environmental requirement.
Have some scientific and technical personnel to release some calcination agents both at home and abroad, though turnover ratio reach about 70%, calcination agent consumption nearly 13% one 15%, thereby cost height, freight charges increase many, to using low-grade V
2O
5The enterprise of mineral resources bears heavier especially.
Summary of the invention
The purpose of this invention is to provide a kind of composite calcination agent that is used for extracting vanadium from vanadium ore, it has 1, chlorinated with chlorine hydrogen emission compliance, 2, at a low price vanadium converts high price vanadium turnover ratio to and improves and reach 70%-83%, and 3, the low low advantage of freight charges of the few cost of calcination agent consumption.
Technical scheme of the present invention is: a kind of composite calcination agent that is used for extracting vanadium from vanadium ore is characterized in that: with ore weight is that the components in weight percent of radix is: sodium hydroxide 1%～3%, sodium-chlor 1.2%～3%, lime carbonate 2.5%～5%.
The composite calcination agent of aforesaid extracting vanadium from vanadium ore is characterized in that: with ore weight is that the components in weight percent of radix is: sodium hydroxide 2%～3%, sodium-chlor 2%～3%, lime carbonate 3%～4%.
The effect of above-mentioned component is: sodium hydroxide totally is that controlling acidity plays oxygenizement again, and sodium-chlor plays the roasting chlorization, lime carbonate (CaCO
3) playing oxygenizement, three's unification impels turnover ratio to improve, and makes chlorine, hydrogen chloride gas emission compliance.
The present invention is the composite calcination agent of a high efficiency, low cost.Its positively effect is:
1, at first old technology warp and ore roasting produce chlorinated with chlorine hydrogen problem, are selecting strict control this point on the calcination agent, and it is up to standard to make it chlorinated with chlorine hydrogen.
2. improve roasting at a low price vanadium be converted to the turnover ratio of high price vanadium, on the basis of studying from mechanism, the experimental program that the science of making is feasible, thereby adopt the effect of composite calcination agent, the different calcination agents of performance to improve turnover ratio, reach 70% one 83%.Reach and surpass the requirement of file in 2005 of State Environmental Protection Administration.
3, control cost
Cost is one of main source of enterprise profit, and we take is calcination agent cheaply, and 100 tons of ore costs of roasting only need 7,000 one 8000 yuan.
4, the consumption of calcination agent
Adopt this composite calcination agent, roasting effect is good, and the amount that adds is also few only to need 6～8%, has saved freight charges, has reduced cost.
Embodiment
Calcination agent of the present invention is to bone coal ore deposit, somewhere, Hunan, and the vanadine ore deposit is closed in Henan, reaches bone coal ore deposit, somewhere, Anhui and carries out a large amount of test works, all produces good effect, simultaneously small-sized pilot scale has been carried out in bone coal ore deposit, somewhere, Hunan, the effect that obtains.
Embodiments of the invention are as follows:
Embodiment 1
With sodium hydroxide 3%, sodium-chlor 2%, lime carbonate 3% and ore 100% mixed ball, roasting obtains better effects, and turnover ratio and chlorine pollute up to standard.
Embodiment 2
With hydrochlorinate sodium 2%, sodium-chlor 3%, lime carbonate 3% and ore 100% mixed ball, also obtain better effects in flat kiln roasting.
Embodiment 3
With sodium hydroxide 2%, sodium-chlor 2%, lime carbonate 3% and ore 100% mixing system ball, the effect that also obtains in flat kiln and rotary kiln roasting.
Test for data is as shown in the table:
| Embodiment number | Chlorine pollutes | Turnover ratio | Cost |
| 1 | Nonirritant gas smell＜＜0.2mg/ rice 3> | 73％ | Close with the sodium salt method or low 10% |
| 2 | Nonirritant gas smell＜＜0.2mg/ rice 3> | 73％ | Close with the sodium salt method or low 10% |
| 3 | Nonirritant gas smell＜＜0.2mg/ rice 3> | 70％ | Close with the sodium salt method or low 10% |
Claims (2)
1. composite calcination agent that is used for extracting vanadium from vanadium ore is characterized in that: with ore weight is that the components in weight percent of radix is: sodium hydroxide 1%～3%, sodium-chlor 1.2%～3%, lime carbonate 3%～5%.
2. the composite calcination agent of extracting vanadium from vanadium ore as claimed in claim 1 is characterized in that: with ore weight is that the components in weight percent of radix is: sodium hydroxide 2%～3%, sodium-chlor 2%～3%, lime carbonate 3%～4%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100467992A CN101497946B (en) | 2008-01-28 | 2008-01-28 | Composite calcination agent for extracting vanadium from vanadium ore |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100467992A CN101497946B (en) | 2008-01-28 | 2008-01-28 | Composite calcination agent for extracting vanadium from vanadium ore |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101497946A CN101497946A (en) | 2009-08-05 |
| CN101497946B true CN101497946B (en) | 2010-10-13 |
Family
ID=40945216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100467992A Expired - Fee Related CN101497946B (en) | 2008-01-28 | 2008-01-28 | Composite calcination agent for extracting vanadium from vanadium ore |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101497946B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN1341759A (en) * | 2001-08-14 | 2002-03-27 | 韦文虎 | Process for extracting vanadium |
-
2008
- 2008-01-28 CN CN2008100467992A patent/CN101497946B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN1341759A (en) * | 2001-08-14 | 2002-03-27 | 韦文虎 | Process for extracting vanadium |
Non-Patent Citations (2)
| Title |
|---|
| CN 1184162 A,全文. |
| CN 1341759 A,全文. |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101497946A (en) | 2009-08-05 |
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| C14 | Grant of patent or utility model | ||
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| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Hao Enkun Inventor after: Hao Xiu Inventor after: Wei Qing Inventor before: Hao Enkun |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: HAO ENKUN TO: HAO ENKUN HAO XIU WEI QING |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101013 Termination date: 20130128 |
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| CF01 | Termination of patent right due to non-payment of annual fee |