CN1029242C - Smelting method for antimon-gold mine containing low ferrous sulfide (FeS) - Google Patents
Smelting method for antimon-gold mine containing low ferrous sulfide (FeS) Download PDFInfo
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- CN1029242C CN1029242C CN 91106858 CN91106858A CN1029242C CN 1029242 C CN1029242 C CN 1029242C CN 91106858 CN91106858 CN 91106858 CN 91106858 A CN91106858 A CN 91106858A CN 1029242 C CN1029242 C CN 1029242C
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- antimony
- furnace
- slag
- gold
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Abstract
The present invention relates to a smelting method for antimon-gold mine containing low ferrous sulfide. Main technological processes of the present invention comprise smelting by a blast furnace, converting by a cupel furnace, fuming by a crucible furnace, acid wash and oxidative slagging gold separation the crucible furnace. The converting by a cupel furnace uses quaternary slag which is composed of 33 to 38% of silicon dioxide, 15 to 22% of iron oxide, 16 to 22% of calcium oxide and 6 to 10% of sodium oxide.
Description
The present invention relates to a kind of processing method that reclaims gold when from contain the ferrous antimony gold mine of low sulfuration, refining antimony.
From contain golden antimony sulfide ore, refine the technology of antimony, gold and carried out both at home and abroad for many years exploring, adopted multiple hearth furnace roasting-electrosmelting-bessemerize flow process as U.S. Yi Yeer Lou-Pai Yin enterprise, but the power consumption height, popularization is had any problem.The now employing " refine afterwards earlier and select " or " roasting-reverberatory furnace " methods more, and after promptly with stoving oven antimony sulfide ore being carried out roasting and receives antimony, its fired slags returns ore dressing again, puts into the further refinement recovery of radiation stove antimony, gold.Because variation has taken place the antimony form in the residue after the roasting, antimony sulfide becomes metallic antimony and antimonial glass or weisspiessglanz, has come difficulty to ore dressing recovery antimony, gold ribbon like this, and antimony, gold recovery are reduced.Chinese patent discloses a kind of antimony, golden smelting technology (application number 87102039, applying date 87.6.15), its main technique flow process comprises blast furnace smelting, reverberatory furnace blowing, your antimony electrolysis, crucible melting, muffle furnace parting etc., in fact this technical process remains the improvement of blast furnace smelting-your antimony electrolysis process of domestic middle nineteen sixties employing, is only applicable to refine gold from contain high sulfuration ferrous antimony gold concentrate.Continue to use this technology and refine and contain FeS and be lower than antimony gold mine 10% below, the expensive antimony iron content of blast furnace is all up to 20-40%, and domestic have two tame smelteries to adopt this method to refine for many years to hang down FeS antimony gold mine, and gold recovery all only reaches 50-60%.
The purpose of this invention is to provide a kind of smelting process that reclaims gold when refining antimony from contain low sulfuration ferrous antimony gold mine, make the direct yield of gold reach 81.1%, total recovery reaches 95.12%.
The present invention adopts following technical process to finish its inventive concept: the main technique flow process is: blast furnace smelting → cupellation furnace blowing → crucible oven fuming → pickling → crucible oven oxidative slagging parting.
Blast furnace smelting adopts quaternary system slag type, and it consists of:
Silicon-dioxide (SiO
2): 33～38%
Ferric oxide (FeO): 15～22%
Calcium oxide (CaO): 16～22%
Sodium oxide (Na
2O) 6～10%
Accompanying drawing 1 is for containing the smelting technology general flow chart of the ferrous antimony gold mine of low sulfuration
The contrast accompanying drawing is described in detail below: method of the present invention is blast furnace quaternary system slag type melting-oxidative slagging method, comprises shaft smelting [1], the operations such as cupel(lation) furnace blowing [2], crucible furnace fuming [3], pickling [4] and crucible furnace oxidative slagging parting [5].
(1) in this procedure of shaft smelting, traditional ternary system slag type is SiO2: FeO: CaO=40: 30: 20, this is adapted to process the antimony gold mine that contains high ferrous sulfide, if still process with traditional ternary system slag type and contain the ferrous antimony gold mine of low sulfuration, then your antimony iron content the gold metallurgy blast furnace produces up to 20～40%, cause that cupel(lation) furnace furnace charge fusing is slow, coal consumption is many, the duration of heat is long, the quantity of slag is big, the cupel(lation) furnace direct yield only reaches 50～60% serious consequence, and from theoretical and experiment as can be known, your antimony iron content height is in the blast furnace A multi-factor problem becomes metallic iron to cause but its immediate cause then is iron oxide reduction; Facts have proved in addition: Containing Sulfur is ferrous high in the mineral, and antimony sulfonium output capacity is just big, and the iron in your antimony is just low. To containing the ferrous antimony gold mine of low sulfuration, it is impossible wanting to rely on the antimony sulfonium of high yield to store metallic iron, in guaranteeing blast furnace in the thermally equilibrated situation, rely on fall Jiao or reduce stock column be used for that to change furnace reduction atmosphere also be limited. Therefore, reduce the iron-holder in your antimony, just can only reduce the deal of iron ore, reduce the reducing atmosphere in the blast furnace. So shaft smelting adopts quaternary system slag type in the present invention, namely the slag type is by silica (SiO2), ferrous oxide (FeO), calcium oxide (CaO), sodium oxide molybdena (Na2O) form, slag type weight proportion is:
Silica (SiO2）：33～38%
Ferrous oxide (FeO): 15～22%
Calcium oxide (CaO): 16～22%
Sodium oxide molybdena (Na2O）：6～10%
Raw material enters before the blast furnace, will contain the ferrous antimony bronze concentrate of low sulfuration and add 6～8%(by weight) lime, about 10% water through mixer and even, is suppressed balling-up with balling press, air dry entered then blast furnace and processes about 15 days. In the shaft smelting process, adopt low column, small powder batch operation system, after feeding in raw material, the stock column height should be less than 900 millimeters, feeding study on period 10～20 minutes, the antimony Gold is by the expensive antimony of the output that antimony captures of liquate in the alkaline residue. Your antimony proportion 6.8, antimony sulfonium proportion 4.6, slag proportion 2.9, the three is because of the proportion difference, layering in the molten bath and separating. The antimony gold Part antimony is blasted air oxygen and is changed into antimony oxide (being commonly called as antimony oxygen) in the concentrate, enters the condensation dust collecting system after the volatilization, reenters the reverberatory furnace operation and refines star metal (seeing flow chart).
(2) your antimony of blast furnace smelting output, for the grade that makes gold improves, need further to blow with cupellation furnace, it is 50 millimeter that your antimony of blast furnace output is crushed to granularity, pack in the cupellation furnace, be warming up to more than 800 ℃ before reinforced, the reinforced follow-up continuous 1000 ℃ of left and right sides meltings 6～10 hours that are warming up to, after removing the scum silica frost on the melt, add antimony sulfide again, soda ash air blast blowing de-iron 14～18 hours, the add-on of antimony sulfide is 5% of your antimony, the soda ash add-on is 2% of your antimony, take air blast fuming 13～18 hours again behind the blowing slag off, be about at 20: 1 o'clock to concentration ratio, scoop out the expensive antimony of cupellation furnace.The antimony oxygen of cupellation furnace output is gone into the reverberatory furnace operation, and ash blows slag and returns the further melting of blast furnace.
(3) your antimony of cupellation furnace output is sent into crucible oven, temperature control of pot furnace is at 850～950 ℃, air blast fuming 18～22 hours, enter dust collecting system after the volatilization of antimony oxygen, the expensive antimony of cupellation furnace is concentrated more than five times, will contain golden antimony liquid and slowly flow in the water, high golden your antimony of water granulation shape.Produce scum silica frost after the low golden slag system raw material fusing, generally contain gold below 500g/t, the scum silica frost that occurs in the antimony is taken off in high golden slag system oxidation, when clawing, with a small amount of your antimony after concentrating, generally contains gold more than 1000g/t.
(4) golden your antimony of granular height enters the pickling tank pickling and removes impurity such as copper, iron, lead, nickel, and pickle solution is selected nitric acid for use, and proportioning is a nitric acid: high golden your antimony=3: 1, the pickling time is 6～10 hours, with the clear water washing, removes nitrate radical then, dry gold mud.
(5) gold mud after will drying is equipped with other material and enters crucible oven oxidative slagging parting, and allocating material into is SODIUMNITRATE, saltpetre, yellow soda ash, river sand, marble, and its ratio of components is:
100 kilograms of gold mud
10 kilograms of SODIUMNITRATE
10 kilograms in saltpetre
20 kilograms in yellow soda ash
30 kilograms of river sands
7 kilograms of marbles
The oxidative slagging temperature is controlled at 900～1000 ℃, and oxidative slagging 3～4 hours except that after removing slag, is cast ingot.The grade of ingot is more than 80%.Slag after the casting about 8 centimeters thick, the middle level is to the top layer, Gold Content is lower, be low golden slag, partly to contain gold higher to contacting the ingot top layer by the middle part, is the golden slag of height, through manually beaing the sorting bunch with hand hammer, low golden slag returns blast furnace smelting, high golden slag ash charge Bessemer blow.
(6) the antimony oxygen of blast furnace output contains about golden 4g/t, in order to collect this partly gold, blast furnace antimony oxygen is gone into reverberatory furnace [6] reduction refining become star metal.
(7) star metal is gone into stibium trioxide stove [7] blowing, antimony is oxidized to antimonous oxide, and gold then is enriched in the stibium trioxide furnace bottom water antimony.To contain gold end water antimony again and be back to cupellation furnace receipts gold.
The smelting process that contains the ferrous antimony gold mine of low sulfuration provided by the invention, vouch through relevant department and to show: owing to replaced traditional three component system slag type with quaternary system slag type, thereby reduced the proportion of slag, fusing point helps golden antimony with viscosity and separates, because of quaternary system slag type FeO ratio low, reduced the amount of allocating into of iron ore and Wingdale in a large number, contrast with three component system slag type, stone rate descends 30%, and the slag rate descends 22.2%, along with the minimizing of material melting heat, burnt rate descends 16%, the blast furnace day output improves 20%, and blast furnace gold direct yield brings up to 90.03% by 80%, and your antimony iron content drops to below 10% by about 25%.Reduced your antimony de-iron number of operations, refining time foreshortened to 0.5 hour/ton by 4.5 hours/ton, and ash blows the slag rate and descends 51%, slag contains gold and reduces to 17.2 gram/tons by 48 gram/tons, and golden direct yield rises to 89.76% by 50.96%, and alkaline consumption descends 57%, coal consumption descends 31.7%, and power consumption descends 65%.
Embodiment:
Accompanying drawing has been described embodiments of the invention:
1, blast furnace smelting
Take by weighing 250 kilograms in a ball of the dried group of low sulfuration ferrous antimony gold mine, 25 kilograms of iron ores, 20 kilograms in calcium oxide, 50 kilograms of alkaline residues, 80 kilograms in coke (annotate: its effect of antimony alkaline residue that contains that adds the reverberatory furnace output is to provide to catch golden antimony and sodium oxide component in stove) are provided, added once in per 15 minutes, add in the blast furnace and carry out melting, the oxide compound of antimony is after the condensation dust collecting system is collected, go into the reverberatory furnace reduction refining and become star metal, in the stibium trioxide stove, blow into antimonous oxide, gold in the star metal is enriched in the water of the high plumbous end, returns cupellation furnace then and handles.
2, cupellation furnace blowing
The expensive antimony of blast furnace output is crushed to granularity 50 millimeter, adds 1000 kilograms in the cupellation furnace of packing at every turn, fill it up with to 5 tons, be warming up to 900 ℃ before reinforced, the reinforced follow-up continuous 1000 ℃ of blowing 6 hours that are warming up to, claw the scum silica frost on the melt after, add 300 kilograms of antimony sulfide again, 100 kilograms of soda ash, air blast blowing de-iron 16 hours, remove the blowing slag after, the air blast fuming is 16 hours again, to concentration ratio be 20: 1 o'clock, scooping out becomes the expensive antimony of cupellation furnace.
3, crucible oven fuming
The expensive antimony of cupellation furnace is put into crucible oven for 300 kilograms, and temperature is controlled at about 900 ℃, and air blast fuming 20 hours enters dust collecting system after the volatilization of antimony oxygen, and the expensive antimony of cupellation furnace is concentrated more than 5 times, will contain golden antimony liquid and slowly flow in the water, high golden your antimony of water granulation shape.
4, pickling
Get 150 kilograms in 57～60% nitric acid, high golden your antimony is put into pickling tank for 50 kilograms, and impurity such as copper, iron, lead, nickel are removed in pickling 8 hours, with the clear water washing, removes nitrate radical then, dry gold mud.Low golden slag is gone into the molten refining of blast furnace, high golden slag ash charge Bessemer blow.
5, crucible oven parting
Add 40 kilograms of gold mud, 4 kilograms of SODIUMNITRATE, 4 kilograms in saltpetre, 8 kilograms in yellow soda ash, 12 kilograms of river sands, 2.8 kilograms of marbles in crucible oven, temperature is controlled at 950 ℃, and oxidative slagging 4 hours is cast ingot except that after removing slag.High golden slag ash charge Bessemer blow, low golden slag is gone into blast furnace smelting.
6, reverberatory furnace produces blast furnace and contains golden antimony hydrogen reduction and be refined into metallic antimony.
7, the stibium trioxide stove is enriched in the gold in the antimony in the end water antimony, will contain gold end water antimony then and be back to cupellation furnace receipts gold.
Claims (6)
1, the smelting process of the ferrous antimony gold mine of a kind of low Containing Sulfur will be hanged down sulfuration ferrous antimony bronze ore deposit, add 6～8% lime, 9～12% water, enter stirrer and even, be pressed into ball with balling press, handle through seasoning, and the group's of making ball is characterized in that:
(1) this smelting process comprises master operations such as blast furnace smelting, cupellation furnace blowing, crucible oven fuming, pickling, crucible oven oxidative slagging parting;
(2) blast furnace smelting adopts quaternary system slag type, calculates the weight proportion of air blast furnace charge by following composition:
Silicon-dioxide (SiO
2): 33～38%
Ferric oxide (FeO): 15～22%
Calcium oxide (CaO): 16～22%
Sodium oxide (Na
2O): 6～10%
(3) in cupellation furnace when blowing,, with your antimony of the 50 mm particle sizes cupellation furnace of packing into, melting is 6～10 hours in cupellation furnace, add antimony sulfide, soda ash again after clawing the scum silica frost on the melt, air blast blowing 14～16 hours, remove the blowing slag after, the air blast fuming is 13～16 hours again.
(4) during the crucible oven oxidative slagging, temperature is controlled between 900～1000 ℃, and its ratio of components is: gold mud: SODIUMNITRATE: saltpetre: yellow soda ash: river sand: marble=100: 10: 10: 20: 30: 7, and blowing slag making 3～4 hours.
2, a kind of smelting process that contains the ferrous antimony gold mine of low sulfuration according to claim 1, it is characterized in that: crucible oven fuming, temperature are controlled between 850～950 ℃, and the air blast fuming time is 18～22 hours.
3, by the described a kind of smelting process that contains the ferrous antimony gold mine of low sulfuration of claim 1, when it is characterized in that thick gold enters the pickling of pickling cylinder, nitric acid: thick gold=3: 1, the pickling time is 6～10 hours, with the clear water washing, removes nitrate radical then.
4, a kind of smelting process that contains the ferrous antimony gold mine of low sulfuration according to claim 1 is characterized in that the sodium oxide composition in the quaternary system slag type can replace with the natron slag that reverberatory furnace is discharged.
5, a kind of smelting process that contains the ferrous antimony gold mine of low sulfuration according to claim 1, the ash that it is characterized in that antimony sulfonium, cupellation furnace output from the blast furnace output are blown slag, are back to the further melting of blast furnace from the low golden slag of crucible oven output.
6, a kind of smelting process that contains the ferrous antimony gold mine of low sulfuration according to claim 1 and 2 is characterized in that the high golden slag from the crucible output, and the end water that the stibium trioxide fire grate goes out is back to cupellation furnace and further blows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91106858 CN1029242C (en) | 1991-11-29 | 1991-11-29 | Smelting method for antimon-gold mine containing low ferrous sulfide (FeS) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91106858 CN1029242C (en) | 1991-11-29 | 1991-11-29 | Smelting method for antimon-gold mine containing low ferrous sulfide (FeS) |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1072729A CN1072729A (en) | 1993-06-02 |
| CN1029242C true CN1029242C (en) | 1995-07-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91106858 Expired - Fee Related CN1029242C (en) | 1991-11-29 | 1991-11-29 | Smelting method for antimon-gold mine containing low ferrous sulfide (FeS) |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102676850A (en) * | 2012-05-09 | 2012-09-19 | 锡矿山闪星锑业有限责任公司 | Proportioning method for high-silicon and low-iron slag through volatile smelting of antimony smelting blast furnace |
| CN103243221A (en) * | 2013-05-16 | 2013-08-14 | 中南大学 | Method for directly gathering gold by virtue of smelting of unmanageable gold ore molten pool containing arsenic and stibium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102534256A (en) * | 2012-03-29 | 2012-07-04 | 锡矿山闪星锑业有限责任公司 | Stibium blast furnace for generating antimony matte, device of coarse stibium blowing furnace and direct converting method |
| CN104152721B (en) * | 2014-08-25 | 2016-06-15 | 湖南辰州矿业股份有限公司 | A kind of refine antimony while separation antimony, gold technique |
| CN105714130B (en) * | 2016-04-27 | 2020-12-25 | 中南大学 | Reduction smelting slag and application thereof in crude antimony oxide reduction smelting |
| CN108359814B (en) * | 2018-04-08 | 2020-07-17 | 邝江华 | Antimony sulfide gold ore oxygen-enriched molten pool smelting method |
| CN109540731A (en) * | 2019-01-15 | 2019-03-29 | 长春黄金研究院有限公司 | A kind of silver determination method in electrolysis cathode steel wool |
| CN113444875B (en) * | 2021-06-28 | 2022-11-29 | 贵州理工学院 | Resource utilization method for synergistic treatment of antimony sulfide concentrate and aluminum industrial waste residues |
-
1991
- 1991-11-29 CN CN 91106858 patent/CN1029242C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102676850A (en) * | 2012-05-09 | 2012-09-19 | 锡矿山闪星锑业有限责任公司 | Proportioning method for high-silicon and low-iron slag through volatile smelting of antimony smelting blast furnace |
| CN103243221A (en) * | 2013-05-16 | 2013-08-14 | 中南大学 | Method for directly gathering gold by virtue of smelting of unmanageable gold ore molten pool containing arsenic and stibium |
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| Publication number | Publication date |
|---|---|
| CN1072729A (en) | 1993-06-02 |
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