CN101314820A - Method for producing zinc finemeal with zinc oxide mine or zinc slag - Google Patents
Method for producing zinc finemeal with zinc oxide mine or zinc slag Download PDFInfo
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- CN101314820A CN101314820A CNA200710049186XA CN200710049186A CN101314820A CN 101314820 A CN101314820 A CN 101314820A CN A200710049186X A CNA200710049186X A CN A200710049186XA CN 200710049186 A CN200710049186 A CN 200710049186A CN 101314820 A CN101314820 A CN 101314820A
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Abstract
The invention relates to a method for manufacturing fine zinc powders by using zinc oxide ores or zinc slag, which adopts a procedure comprising ore crushing, ammonia leaching, filtration and zinc depositing to manufacture the fine zinc powders, and is particularly suitable for processing low grade zinc oxide ores or zinc slag, with the zinc content being 2 to 18 percent. Firstly, the ores are crushed into powdered ores; secondly, a mixed solution composed of ammonia water and ammonium hydrogen carbonate or the mixed solution composed of sodium hydroxide and the ammonium hydrogen carbonate is used as an ore dipping reagent to react with the powdered ores, to lead zinc in the ores to enter the solution in the form of a zinc ammonia complex compound and to enable the impurities such as lead, cadmium, manganese, calcium, silicon, etc. to be left in the zinc slag; the separation between the zinc and the impurities is realized; then any one or any two and more than two of ammonia sulfide, sodium sulfide, and potassium sulphuret are cooperatively used as a precipitator for precipitating the zinc so as to produce the fine zinc powders; the fine zinc powders are filtered and the fine zinc powder products are obtained after the fine zinc powders are dried; filter liquor is returned to an ore dipping pool for recycling use. The method has the advantages of normal temperature operation, low energy consumption, short procedure, and simple solution purifying, and can utilize the zinc resources to be developed fully and effectively.
Description
Technical field
Method of producing the smart powder of zinc involved in the present invention with zinc oxide ore or zinc quarrel, adopt fine ore-ammonia soak-filter-flow process of zinc of sink produces zinc essence powder, the low-grade zinc oxide ore or the zinc that are particularly suitable for handling zinc content 2-18% are cut.This method belongs to the chemical mineral processing engineering field in the hydrometallurgy.
The smart powder of zinc is a kind of main raw material of production metallic zinc, China produces the smart powder of main raw material-zinc of zinc and produces through floatation process with the zinc sulphide ore, but a large amount of exploitations along with primary ore, Mineral resources day is becoming tight, simultaneously in opening zinc sulfide ore and high-grade zinc oxide ore process, a large amount of low grade zinc oxide ores and zinc quarrel are all abandoned as barren rock, Mineral resources to country cause great waste, low-grade zinc oxide ore does not have big commercial exploitation always, the production of industrialized utilization low-grade zinc oxide research be subjected to always each relevant departments of China attention.
Background technology
Low grade zinc oxide ore has following several method utilization at present:
1, Chinese patent application (patent) numbers 200610027346 is a kind of with the method for zinc oxide ore with zinc gray slag production zinc ore concentrate and lead ore concentrate.At first, raw material is ground into particle diameter 0.1-1mm, with the strong alkali solution leaching, behind 10-100 ℃ of stirring 60-100min, zinc in the raw material and plumbous the leaching.Filter, filter residue is brickmaking or landfill after washing.Then, in filtrate, add the precipitation agent of 0.5-3 times of mass ratio of lead content, behind the stirring 60min, filter, obtain lead ore concentrate.Add precipitation agent in zinciferous filtrate again, the add-on of precipitation agent is a 0.5-5 times of mass ratio of 90-95% zinc total amount, stirs 1h-5h down at 10-100 ℃, filters, and obtains zinc ore concentrate.Filtrate and wash water are got back to leaching section circulation leaching.Though it is simple that this technology has technical process, strong to the adaptability of raw material, by alkali and precipitation agent consumption greater than, production cost is higher.
2, Chinese invention patent: application (patent) numbers 200410077241 provides a kind of acid-ammonia extraction of high silicon high iron low grade zinc oxide ore zinc, it is characterized in that this method is: (1) ore grinding, breeze → (2) breeze normal temperature add acid and transform → (3) add alkali or lime neutralization → (4) ammonification lixiviate → (5) liquid-solid separation → (6) and must contain Zn100-150g/l operation liquid → (7) through the multistage lixiviate and send after the routine purification and be electrolyzed to produce zinc ingot metal or produce zinc oxide product; Present method has solved existing acid system and has generated silica gel, and filtration difficulty and ammonia process leach the low technical barrier of the rate of recovery, its characteristics: the one, and do not generate silica gel, be easy to filter; The 2nd, the leaching rate of recovery height of zinc is equal to or higher than 80%, and is good in economic efficiency; The 3rd, contain SiO
2＞30%, Fe＞10%, the high silicon high iron low grade zinc oxide ore of Zn＞10% can be fully used, and turns waste into wealth.But anti-the material amount is big for this complex process, material, and adds alkali or lime consumption is big, and the cost height is not easy to industrial production.
3, the extract technology of the open zinc oxide ore of Chinese invention patent (02133663).This invention belongs to hydrometallurgical technology, particularly contains the leaching method of the zinc ore of high ferro, silicon.Step of the present invention is: (1) is neutral leaches, zinc oxide breeze and sulfur acid solution are added simultaneously and stir, the beginning pH value of acid is 3.0～3.5, the pH value of solution gradually rises, finally reach pH5～5.2, reacted neutral leach liquor is made electrolysis usefulness for clean liquid, and leached mud carries out next step and leaches; (2) hang down acidleach and go out, add sulfuric acid liquid and stirring in leached mud, control pH value descends gradually, drops to pH1.5～3.0 by pH5～5.2 that begin; (3) circulation waste liquid carries out solid-liquid separation to the secondary extract, contains the neutrality leaching stage that the vitriolic waste liquid returns zinc oxide ore again.This invention can be lower than 20% zinc oxide ore leaching to containing zinc, does not need neutralizing agent, and production cost is relative with the sulfuric acid consumption few, and leach liquor can be recycled, the leaching yield height of zinc.But environmental influence is big and the feed liquid extensive utilization of this technology that has been difficult for filtering limit.
Summary of the invention
The object of the present invention is to provide a kind of method of producing the smart powder of zinc with zinc oxide ore or zinc quarrel, this method is with jaw crusher low-grade zinc oxide ore of zinc content 2-18% or zinc quarrel to be carried out fragmentation, and the breaking ores granularity is below the 50mm.Through making husky equipment ore powder is broken to the breeze of particle diameter 0.1-2mm again, is transported to the leaching pond with rotary conveyor.The mixing solutions of the ammoniacal liquor for preparing in agitation vat then and the mixing solutions of ammonium hydrogencarbonate or sodium hydroxide and ammonium hydrogencarbonate is as soaking the ore deposit agent, in the ammonia leaching liquid input leaching pond, leaching liquid and breeze react, the zinc complex solution that generates permeates to leaching pond bottom by deadweight, liquid discharge pipe by the ore bed bottom flows out, and enters collecting tank.When zinc ion concentration in the leach liquor during less than 10g/l, circulation leaching once more, when reaching 10g/l, pump to agitation vat sinks zinc production.
Heavy zinc workshop section adopts first order reaction, with sulfuration ammonia, any one of three kinds of sodium sulphite and potassium sulphides or any two kinds and the two or more precipitation agent of doing heavy zinc that is used, the zinc solution that extracts certain volume is in agitation vat, zinc content in the chemical examination bucket, calculate total zinc content in the bucket, (1-4 doubly) calculates dosage (heavy zinc agent) according to heavy zinc coefficient, open whipping appts, adding heavy zinc agent reacted 0.1-1 hour down in normal temperature and pressure, zinc in the agitation vat just generates the smart powder of zinc, filters by the product collecting tank the more smart powder of zinc is collected, and filtrate enters after the smart powder of zinc of settling tank precipitation trace, overflow pumps into leaching and recycles in the pond to collecting tank.The smart powder of zinc goes out the washing that is soaked in water before the pond, dries or press dry the back and pack and dispatch from the factory.Advantage such as method provided by the invention has the effect height, energy consumption is low, cost is low, simple easy handling, adaptability are wide, free from environmental pollution.
Technology contents of the present invention comprises ore disintegrating apparatus, agitation vat, leaching pond and feed liquid recycle pump.
The method that the present invention proposes is with jaw crusher low-grade zinc oxide ore of zinc content 2-18% or zinc quarrel to be carried out fragmentation, and the breaking ores granularity is below the 50mm.Through making husky equipment the ore powder of fragmentation is broken to the breeze of particle diameter 0.1-2mm again, is transported to the leaching pond with rotary conveyor.(ammoniacal liquor solubility is 2-8% for ammoniacal liquor for preparing in agitation vat then and ammonium hydrogencarbonate, ammonium hydrogencarbonate solubility is 1-6%) mixing solutions or sodium hydroxide and ammonium hydrogencarbonate (sodium hydroxide solubility is 2-4%, ammonium hydrogencarbonate solubility is 5-12%) mixing solutions as soaking the ore deposit agent, in the ammonia leaching liquid input soaking pit, leaching liquid and breeze react, liquid-solid volume ratio is 1-4: 1, the zinc complex solution that generates is by the bottom infiltration of deadweight to the leaching pond, liquid discharge pipe by the ore bed bottom flows out, and enters collecting tank.When zinc ion concentration in the leach liquor during less than 10g/l, circulation leaching once more, when reaching 10g/l, pump to agitation vat sinks zinc production.
Heavy zinc workshop section adopts first order reaction, with sulfuration ammonia, any one of three kinds of sodium sulphite and potassium sulphides or any two kinds and the two or more precipitation agent of doing heavy zinc that is used, the zinc solution that extracts certain volume is in agitation vat, zinc content in the chemical examination bucket, calculate total zinc content in the bucket, (1-4 doubly) calculates dosage (heavy zinc agent) according to heavy zinc coefficient, open whipping appts, add heavy zinc agent, reacted 0.1-1 hour down in normal temperature and pressure, the zinc in the agitation vat just generates the smart powder of zinc, filters by the product collecting tank the more smart powder of zinc is collected, filtrate enters after the smart powder of zinc of settling tank precipitation trace, and overflow is to collecting tank.Pump in the leaching pond and recycle.The smart powder of zinc goes out the washing that is soaked in water before the pond, dries or press dry the back and pack and dispatch from the factory, and lotion pumps recycles to leaching in the pond.
Description of drawings
Accompanying drawing has provided implements equipment configuration of the present invention and facility synoptic diagram.This covering device is made up of ore crusher (1), sweetened bean paste-making machine (2), rotary conveyor (3), leaching pond (4), agitation vat (5), collecting tank (7), product collecting tank (8), settling tank (9), feed pump (10).
Device (1) is an ore crusher, and device (2) is a sweetened bean paste-making machine, and low-grade zinc oxide ore of zinc content 2-18% or zinc quarrel are dropped into crusher import (11), and crusher (1) is crushed to ore or ore deposit quarrel below the 50mm.Through sweetened bean paste-making machine (2) ore powder of fragmentation is broken to the breeze of particle diameter 0.1-2mm again, the breeze of accomplishing fluently is transported to leaching pond (4) with rotary conveyor (3).(ammoniacal liquor solubility is 2-8% for ammoniacal liquor for preparing in agitation vat (5) lining and ammonium hydrogencarbonate then, ammonium hydrogencarbonate solubility is 1-6%) mixing solutions or sodium hydroxide and ammonium hydrogencarbonate (sodium hydroxide solubility is 2-4%, ammonium hydrogencarbonate solubility is 5-12%) mixing solutions as soaking the ore deposit agent, deliver in the leaching pond (4), leaching liquid and breeze react, liquid-solid volume ratio is 1-4: 1, the zinc complex solution that generates is by the bottom infiltration of deadweight to the leaching pond, liquid discharge pipe (6) by the ore bed bottom flows out, and enters collecting tank (7).When zinc ion concentration in the leach liquor during, to leaching pond (4) circulation leaching, when reaching 10g/l, sink zinc production by feed pump (10) pump to agitation vat (5) by feed pump (10) pump less than 10g/l.
Heavy zinc workshop section adopts first order reaction, with sulfuration ammonia, any one of three kinds of sodium sulphite and potassium sulphides or any two kinds and the two or more precipitation agent of doing heavy zinc that is used, the zinc solution that extracts certain volume is in agitation vat (5), zinc content in the chemical examination agitation vat (5), calculate total zinc content in the bucket, (1-4 doubly) calculates dosage (heavy zinc agent) according to heavy zinc coefficient, open the whipping appts in the agitation vat (5), add heavy zinc agent, reacted 0.1-1 hour down in normal temperature and pressure, zinc in the agitation vat just generates the smart powder of zinc, by product collecting tank (8) the smart powder of zinc is filtered again and collect, filtrate enters after the smart powder of zinc of settling tank (9) precipitation trace, and overflow pumps in the leaching pond (4) by feed pump (10) and to recycle to collecting tank (7).The smart powder of zinc goes out the preceding washing that is soaked in water of product collecting tank (8), dries or press dry the back packing to dispatch from the factory, and the washing lotion overflow also recycles to leaching in the pond (4) by feed pump (10) pump to collecting tank.
Method with zinc oxide ore or the smart powder of zinc quarrel production zinc involved in the present invention; adopt fine ore-ammonia soak-filter-sink the flow process production zinc essence powder of zinc; technological process simply is easy to control; the equipment capacity scope is big; be more suitable for large-scale industrial production; the zinc oxide component of zinc oxide ore or zinc quarrel is fully reclaimed, and makes the smart powder of zinc.
The product index that reaches is as follows:
One, butt zinc content is greater than 50%
Two, iron level is less than 2.0%
Three, silicone content is less than 1.0%.
Embodiment
Specific embodiments of the present invention is with jaw crusher one zinc content, 8% low-grade zinc oxide ore to be carried out fragmentation, and the breaking ores granularity is below the 50mm.The husky equipment of economy-combat is broken to the breeze of particle diameter 0.1-2mm with the ore powder of fragmentation again, is transported to the leaching pond.(ammoniacal liquor solubility is 2% for ammoniacal liquor for preparing in agitation vat then and ammonium hydrogencarbonate, ammonium hydrogencarbonate solubility is 6%) mixing solutions as soaking the ore deposit agent, in the ammonia leaching liquid input soaking pit, leaching liquid and breeze react, liquid-solid volume ratio is 2: 1, the zinc complex solution that generates is by the bottom infiltration of deadweight to the leaching pond, and the liquid discharge pipe bottom ore bed flows out, and enters collecting tank.When zinc ion concentration in the leach liquor during less than 10g/l, circulation leaching once more, when reaching the 10g/l left and right sides, pump to agitation vat sinks zinc production.
Heavy zinc workshop section adopts first order reaction, with sulfuration ammonia, sodium sulphite is by being used the precipitation agent of doing heavy zinc at 1: 4, extract 10 cubical zinc solutions in agitation vat, zinc content in the chemical examination bucket is 11g/l, calculating the interior total zinc content of bucket is 110 kilograms, calculating dosage according to heavy zinc is 200 kilograms (heavy zinc agent), open whipping appts, add heavy zinc agent, reacted 0.5 hour down in normal temperature and pressure, the zinc in the agitation vat just generates the smart powder of zinc, by the product collecting tank the smart powder of zinc is filtered again and collect, filtrate enters after the smart powder of zinc of settling tank precipitation trace, and overflow pumps in the leaching pond and recycles to collecting tank.The smart powder of zinc goes out the washing that is soaked in water before the pond, dries or press dry the back and pack and dispatch from the factory, and the washing lotion overflow is to collecting tank, and pump recycles to leaching in the pond.
The result that the foregoing description obtained is as follows:
One, the smart dried bean noodles base of product zinc zinc content 53.5%
Two, iron level 0.5%
Three, silicone content 0.9%.
Claims (1)
- A kind of method of producing the smart powder of zinc with zinc oxide ore or zinc quarrel, adopt fine ore-ammonia soak-filter-sink the flow process production zinc essence powder of zinc, it is characterized in that: the low-grade zinc oxide ore or the zinc quarrel that are fit to handle zinc content 2-18%, at first ore powder is broken into breeze, secondly react as soaking ore deposit agent and breeze with the mixing solutions of ammoniacal liquor and ammonium hydrogencarbonate or the mixing solutions of sodium hydroxide and ammonium hydrogencarbonate, make the zinc in the ore enter solution with the form of zinc ammonia complex, and make lead, cadmium, manganese, impurity such as calcium and silicon is stayed in the slag, realize that zinc separates with impurity, then with sulfuration ammonia, any one of three kinds of sodium sulphite and potassium sulphides or any two kinds and the two or more precipitation agent of doing heavy zinc that is used are produced the smart powder of zinc, filter the smart powder of zinc and treat to get the smart powder product of zinc after it is done, filtrate is returned mine-dipping pool and is recycled.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710049186XA CN101314820A (en) | 2007-05-28 | 2007-05-28 | Method for producing zinc finemeal with zinc oxide mine or zinc slag |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA200710049186XA CN101314820A (en) | 2007-05-28 | 2007-05-28 | Method for producing zinc finemeal with zinc oxide mine or zinc slag |
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| CN101314820A true CN101314820A (en) | 2008-12-03 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101538648B (en) * | 2009-03-13 | 2012-07-04 | 昆明理工大学 | Method for activating ammonia leaching for high calcium-magnesium zinc oxide ore |
| CN102828033A (en) * | 2012-09-25 | 2012-12-19 | 四川巨宏科技有限公司 | Method for recycling electrolytic zinc acid leaching slag |
| CN103627911A (en) * | 2013-12-09 | 2014-03-12 | 株洲冶炼集团股份有限公司 | Treatment process for high-iron zinc oxide |
| CN104058447A (en) * | 2014-06-30 | 2014-09-24 | 桂林理工大学 | Method for preparing nano-zinc oxide by taking zinc slag oxygen powder as raw materials |
| CN106032288A (en) * | 2015-03-10 | 2016-10-19 | 唐山海港合缘锌业有限公司 | Method utilizing secondary zinc oxide to produce electronic grade zinc oxide |
| CN109182749A (en) * | 2018-08-01 | 2019-01-11 | 昆明理工大学 | A kind of zinc oxide ore alkaline leaching agent and its leaching method |
| CN112481508A (en) * | 2020-11-27 | 2021-03-12 | 韶关凯鸿纳米材料有限公司 | Low-degree steel plant flue gas furnace ash treatment method and device |
-
2007
- 2007-05-28 CN CNA200710049186XA patent/CN101314820A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101538648B (en) * | 2009-03-13 | 2012-07-04 | 昆明理工大学 | Method for activating ammonia leaching for high calcium-magnesium zinc oxide ore |
| CN102828033A (en) * | 2012-09-25 | 2012-12-19 | 四川巨宏科技有限公司 | Method for recycling electrolytic zinc acid leaching slag |
| CN103627911A (en) * | 2013-12-09 | 2014-03-12 | 株洲冶炼集团股份有限公司 | Treatment process for high-iron zinc oxide |
| CN103627911B (en) * | 2013-12-09 | 2015-01-14 | 株洲冶炼集团股份有限公司 | Treatment process for high-iron zinc oxide |
| CN104058447A (en) * | 2014-06-30 | 2014-09-24 | 桂林理工大学 | Method for preparing nano-zinc oxide by taking zinc slag oxygen powder as raw materials |
| CN106032288A (en) * | 2015-03-10 | 2016-10-19 | 唐山海港合缘锌业有限公司 | Method utilizing secondary zinc oxide to produce electronic grade zinc oxide |
| CN106032288B (en) * | 2015-03-10 | 2018-11-27 | 唐山海港合缘锌业有限公司 | A method of electron level zinc oxide is manufactured using secondary zinc oxide |
| CN109182749A (en) * | 2018-08-01 | 2019-01-11 | 昆明理工大学 | A kind of zinc oxide ore alkaline leaching agent and its leaching method |
| CN112481508A (en) * | 2020-11-27 | 2021-03-12 | 韶关凯鸿纳米材料有限公司 | Low-degree steel plant flue gas furnace ash treatment method and device |
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Open date: 20081203 |