CN102557083A - Process for countercurrent leaching in leaching chamber - Google Patents
Process for countercurrent leaching in leaching chamber Download PDFInfo
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- CN102557083A CN102557083A CN2012100019009A CN201210001900A CN102557083A CN 102557083 A CN102557083 A CN 102557083A CN 2012100019009 A CN2012100019009 A CN 2012100019009A CN 201210001900 A CN201210001900 A CN 201210001900A CN 102557083 A CN102557083 A CN 102557083A
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- leaching
- storehouse
- counter
- current extraction
- sodium
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Abstract
The invention provides a process for countercurrent leaching in a leaching chamber. In the process, countercurrent leaching is performed by using fresh water or brine, and nitratine containing sodium nitrate, sodium chloride, sodium sulfate and silt undissolved substance, and the vertical leaching chamber with a cylinder upper part and a tapered bottom tailing discharging lower part is used, the fresh water and the brine are respectively used for dissolving sodium nitrate, sodium chloride and sodium sulfate in the nitratine through multi-stage countercurrent, and a leaching complete solution and tailings leached through fresh water leaching can be obtained. The process provided by the invention is characterized in that the countercurrent leaching in the leaching chamber is achieved, the leaching efficiency is high, the applicability of nitratine raw material is strong, the loading efficiency of nitratine raw material and the loading efficiency of leaching tailings are high, and the investment cost and the production cost are low.
Description
Technical field
The invention belongs to field, inorganic chemistry mine, is a kind of leaching storehouse counter-current extraction sodium nitre technology.
Background technology
Known sodium nitre leaching technology mainly contains dump leaching method and pond leaching process, and wherein, dump leaching method technology exists water loss very big, and leaching concentration is low, and operating environment is poor; Pond leaching process technology existence investment and floor space are big, and the control halogen time is long, and tailings slag dumping efficient is very low, problems such as operating environment difference.Therefore, above-mentioned technology is used in actual production all has limitation.
Summary of the invention
The objective of the invention is to above-mentioned existing production technique existing problems; A kind of leaching storehouse counter-current extraction sodium nitre technology is provided; This technology has leaching storehouse counter-current extraction; Characteristics such as leaching efficiency is high, and the sodium nitre adaptability to raw material is strong, and the simple and direct efficient height of charging of sodium nitre raw material and the discharging of leaching tailings, investment and production cost are low.
For reaching the foregoing invention purpose, the present invention adopts following technical scheme:
This leaching counter-current extraction sodium nitre technology, it comprises:
N >=3 are counted in leaching its leaching storehouse in leaching storehouse, and accomplish liquid by putting in order with the bittern in front one-level leaching storehouse and use liquid as the leaching in next stage leaching storehouse, and described leaching storehouse is the leaching storehouse of vertical top cylinder bottom band awl end last person slag;
The operation steps in every leaching storehouse is:
(1), by leaching bottom, the storehouse awl end get into leaching with the liquid adverse current rise with the leaching storehouse in the saliter stone ore contact and leach certain hour, fresh water or bittern dissolve SODIUMNITRATE, sodium-chlor, the sodium sulfate composition in the saliter stone ore;
(2), the bittern completion liquid that obtains pumps into next stage leaching storehouse through the riser on top;
(3), use the tailings (it is minimum to contain SODIUMNITRATE) of fresh water leaching, reduce the tailings water cut through control halogen after, be expelled to the rotary conveyor entrucking by bottom automatic sludge discharge mouth.
(4), the leaching storehouse after the tailings emptying by conveyor through top opening for feed with the saliter stone ore saliter stone ore of packing into.
(5), the bittern that obtains of leaching storehouse control halogen is as the leaching displacement liquid in relative the 2nd grade of leaching storehouse.
This leaching system leaches resulting bittern through n-2 leaching storehouse and accomplishes the liquid finished product and supply the user to use, and other two leaching storehouses are adorned ore deposit and control halogen, last person's slag respectively, realizes that n leaches the storehouse and operate.
Control halogen is meant that bittern utilizes gravity to flow out naturally and the slag separation dehydration downwards in the leaching storehouse.
Tailings is meant the mine tailing (it is minimum to contain SODIUMNITRATE) with this leaching storehouse behind the SODIUMNITRATE in the fresh water solvent dissolving saliter stone ore.
The present invention provides a kind of leaching storehouse counter-current extraction sodium nitre technology; This technology adopts leaching counter-current extraction (leaching temperature 10-100 ℃ in every leaching storehouse, storehouse (3-20 leaches the storehouse) with fresh water or bittern and the sodium nitre that contains SODIUMNITRATE, sodium-chlor, sodium sulfate, silt insolubles; Every leaching storehouse leaching liquid-solid ratio scope 1-100: 1-100 weight ratio; Every leaching storehouse leaching time 1-24 hour); Adopt the leaching storehouse at the band awl end, vertical top cylinder bottom, SODIUMNITRATE, sodium-chlor, sodium sulfate composition in fresh water or the bittern dissolving sodium nitre obtain leaching and accomplish liquid (NaCl 30-300g/l, Na
2SO20-90g/l, NaNO
3100-600g/l) and the tailings after the fresh water leaching (contain NaNO
30.05-3.0%, Na
2SO
40.03-1.5%, NaCl 0.08-4.0%, H
2O 3-20%).
The present invention adopts leaching storehouse counter-current extraction with fresh water or bittern and the sodium nitre that contains SODIUMNITRATE, sodium-chlor, sodium sulfate, silt insolubles; SODIUMNITRATE, sodium-chlor, sodium sulfate composition in fresh water or the bittern dissolving sodium nitre obtain leaching the tailings of accomplishing after liquid and the fresh water leaching.
This technology also can be used for other ores of fresh water leaching;
This technology also can be used for non-other ores of fresh water solvent leaching.
Advantage of the present invention is: leaching storehouse counter-current extraction; Leaching efficiency is high; The sodium nitre adaptability to raw material is strong; Characteristics such as the simple and direct efficient height of charging of sodium nitre raw material and the discharging of leaching tailings, investment and production cost are low, this technology also can be used for other ores of fresh water leaching, and this technology also can be used for non-other ores of fresh water solvent leaching.
Description of drawings
Fig. 1 a: the schematic flow sheet of operating process 1 of the present invention.
Fig. 1 b: the schematic flow sheet of operating process 2 of the present invention.
Fig. 1 c: the schematic flow sheet of operating process 3 of the present invention.
Fig. 1 d: the schematic flow sheet of operating process 4 of the present invention.
Embodiment
This leaching storehouse counter-current extraction sodium nitre technology is established and is adopted n=10 leaching storehouse operation, and it may further comprise the steps:
1) first leaching storehouse leaching: get into the rising of fresh water adverse current and leach saliter stone ore contact lysis certain hour in the storehouse by leaching bottom, the storehouse awl end; SODIUMNITRATE in the fresh water dissolution saliter stone ore, sodium-chlor, sodium sulfate composition, the first leaching storehouse bittern completion liquid that obtains pumps into the leaching of the second leaching storehouse through the riser on top;
2) second leaching storehouse leaching: get into the first leaching storehouse bittern completion liquid adverse current rising and leach saliter stone ore contact lysis certain hour in the storehouse by leaching bottom, the storehouse awl end; SODIUMNITRATE, sodium-chlor, sodium sulfate composition in the dissolving saliter stone ore, the second leaching storehouse bittern completion liquid that obtains pumps into the leaching of the 3rd leaching storehouse through the riser on top;
3) n-3 leaching storehouse leaching: by the awl end, leaching bottom, storehouse get into n-4 leaching storehouse bittern accomplish the liquid adverse current rise with leach the storehouse in the saliter stone ore contact the contact lysis certain hour; SODIUMNITRATE, sodium-chlor, sodium sulfate composition in the dissolving saliter stone ore, bittern completion liquid in the n-3 that obtains leaching storehouse pumps into n-2 leaching storehouse leaching through the riser on top;
4) n-2 leaching storehouse leaching: by the awl end, leaching bottom, storehouse get into n-3 leaching storehouse bittern accomplish the liquid adverse current rise with the leaching storehouse in saliter stone ore contact lysis certain hour; Dissolve SODIUMNITRATE, sodium-chlor, sodium sulfate composition in the saliter stone ore, bittern completion liquid in the n-2 that obtains leaching storehouse pumps into the use of bittern completion liquid storage tank confession SODIUMNITRATE liquor evaporating plant through the riser on top;
5) n-1 leaching storehouse get rid of adorn ore deposit: n-1 leaching storehouse behind the tailings and get rid of tailings after, by conveyor through top with the saliter stone ore leaching storehouse of packing into;
6) n leaching storehouse control halogen, last person's slag: after adopting fresh water and leach saliter stone ore contact lysis certain hour in the storehouse, accomplishing the leaching operation, the bittern that control halogen obtains is as relative the 2nd grade of leaching displacement liquid that leaches the storehouse; Tailings control halogen reduces its water cut and is expelled to the rotary conveyor entrucking by bottom automatic sludge discharge mouth.
Embodiment 1:
Get 100 tons of sodium nitres and (contain NaNO
35%, Na
2SO
47%, NaCl 30%) be raw material and 30m
3Fresh water carries out 7 leaching storehouse counter-current extractions (5o ℃ of leaching temperature of leaching, every leaching storehouse leaching liquid-solid ratio 30: 100, every leaching storehouse leaching time 4 hours) back and obtains 36.25m
3Accomplish liquid bittern (NaCl 220g/l, Na
2SO 80g/l, NaNO
3200g/l), produce the leaching tailings simultaneously and (contain NaNO for 95.6 tons
30.75%, Na
2SO
40.30%, NaCl 0.83%, H
2O 10%).
Embodiment 2:
Get 100 tons of sodium nitres and (contain NaNO
34.5%, Na
2SO
48%, NaCl 32%) be raw material and 35m
3Fresh water carries out 8 leaching storehouse counter-current extractions (40 ℃ of leaching temperatures of leaching, every leaching storehouse leaching liquid-solid ratio 35: 100, every leaching storehouse leaching time 6 hours) back and obtains 40.6m3 and accomplish liquid bittern (NaCl 227g/l, Na
2SO 83g/l, NaNO
3190g/l), produce the leaching tailings simultaneously and (contain NaNO for 97.1 tons
30.75%, Na
2SO
40.33%, NaCl 0.90%, H
2O 11%).
Embodiment 3:
Get 100 tons of sodium nitres and (contain NaNO
35.5%, Na
2SO
46%, NaCl 30%) be raw material and 40m
3Fresh water carries out 9 leaching storehouse counter-current extractions (30 ℃ of leaching temperatures of leaching, every leaching storehouse leaching liquid-solid ratio 40: 100, every leaching storehouse leaching time 8 hours) back and obtains 48.0m
3Accomplish liquid bittern (NaCl 240g/l, Na
2SO 90g/l, NaNO
3160g/l), produce the leaching tailings simultaneously and (contain NaNO for 91.5 tons
30.75%, Na
2SO
40.42%, NaCl 1.13%, H
2O 12%).
Claims (8)
1. one kind leaches storehouse counter-current extraction sodium nitre technology; It is characterized in that: it comprises: n >=3 are counted in leaching its leaching storehouse in leaching storehouse; And accomplish liquid by putting in order with the bittern in one leaching storehouse, front and use liquid as the leaching in next leaching storehouse, described leaching storehouse is the leaching storehouse of vertical top cylinder bottom band awl end last person slag; The operation steps in every leaching storehouse is:
(1), by leaching bottom, the storehouse awl end get into leaching with the liquid adverse current rise with the leaching storehouse in the saliter stone ore contact and leach certain hour (1-24 hour), fresh water or bittern dissolve SODIUMNITRATE, sodium-chlor, the sodium sulfate composition in the saliter stone ore;
(2), the bittern completion liquid that obtains pumps into next stage leaching storehouse through the riser on top;
(3), use the tailings (it is minimum to contain SODIUMNITRATE) of fresh water leaching, reduce the tailings water cut through control halogen after, be expelled to the rotary conveyor entrucking by bottom automatic sludge discharge mouth;
(4), the leaching storehouse after the tailings emptying by conveyor through top opening for feed with the saliter stone ore saliter stone ore of packing into;
(5), the bittern that obtains of leaching storehouse control halogen is as the leaching displacement liquid in the 2nd grade of leaching storehouse.
2. leaching according to claim 1 storehouse counter-current extraction sodium nitre technology; It is characterized in that: this leaching system leaches resulting bittern through n-2 leaching storehouse and accomplishes liquid finished product confession user use; Other two leaching storehouses are adorned the ore deposit respectively and are controlled halogen, last person's slag, realize n leaching storehouse operation.
3. leaching according to claim 1 and 2 storehouse counter-current extraction sodium nitre technology is characterized in that: the every leaching of described leaching storehouse counter-current extraction storehouse leaching temperature is 10-100 ℃.
4. according to claim 1 leaching storehouse counter-current extraction sodium nitre technology, it is characterized in that: the every leaching of leaching storehouse counter-current extraction storehouse leaching solvent and solute weight ratio is 1-100: 1-100.
5. according to claim 1 leaching storehouse counter-current extraction sodium nitre technology, it is characterized in that: the every leaching of leaching storehouse counter-current extraction storehouse leaching time is 1-24 hour.
6. according to claim 1 leaching storehouse counter-current extraction sodium nitre technology, it is characterized in that: described leaching storehouse counter-current extraction obtains leaching and accomplishes liquid (NaCl 30-300g/l, Na
2SO 20-90g/l, NaNO
3100-600g/l).
7. according to claim 1 leaching storehouse counter-current extraction sodium nitre technology, it is characterized in that: described leaching storehouse counter-current extraction obtains tailings and (contains NaNO
30.05-3.0%, Na
2SO
40.03-1.5%, NaCl 0.08-4.0%, H
2O 3-20%).
8. according to claim 1 leaching storehouse counter-current extraction sodium nitre technology, it is characterized in that: described n is 3-20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100019009A CN102557083A (en) | 2012-01-05 | 2012-01-05 | Process for countercurrent leaching in leaching chamber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100019009A CN102557083A (en) | 2012-01-05 | 2012-01-05 | Process for countercurrent leaching in leaching chamber |
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|---|---|
| CN102557083A true CN102557083A (en) | 2012-07-11 |
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|---|---|---|---|
| CN2012100019009A Pending CN102557083A (en) | 2012-01-05 | 2012-01-05 | Process for countercurrent leaching in leaching chamber |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1177011A (en) * | 1996-09-16 | 1998-03-25 | 宋乐山 | Vertical solid-liquid counter-current extraction column |
| CN101168444A (en) * | 2006-10-23 | 2008-04-30 | 新疆硝石钾肥有限公司 | Technique for producing sodium nitrate by chilisaltpeter adverse current circulation leaching |
| CN201062204Y (en) * | 2007-05-16 | 2008-05-21 | 新疆硝石钾肥有限公司 | Equipment for preparing NaNO3 by chilisaltpeter multi-stage reverse-flow leaching |
| CN102259897A (en) * | 2010-05-31 | 2011-11-30 | 中国中轻国际工程有限公司 | Continuous leaching process of nitratine |
-
2012
- 2012-01-05 CN CN2012100019009A patent/CN102557083A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1177011A (en) * | 1996-09-16 | 1998-03-25 | 宋乐山 | Vertical solid-liquid counter-current extraction column |
| CN101168444A (en) * | 2006-10-23 | 2008-04-30 | 新疆硝石钾肥有限公司 | Technique for producing sodium nitrate by chilisaltpeter adverse current circulation leaching |
| CN201062204Y (en) * | 2007-05-16 | 2008-05-21 | 新疆硝石钾肥有限公司 | Equipment for preparing NaNO3 by chilisaltpeter multi-stage reverse-flow leaching |
| CN102259897A (en) * | 2010-05-31 | 2011-11-30 | 中国中轻国际工程有限公司 | Continuous leaching process of nitratine |
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Application publication date: 20120711 |