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CN1180100C - Method for producing manganese carbonate by utilizing manganese sulfate in waste manganese ore leaching slag - Google Patents

Method for producing manganese carbonate by utilizing manganese sulfate in waste manganese ore leaching slag Download PDF

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Publication number
CN1180100C
CN1180100C CNB001132970A CN00113297A CN1180100C CN 1180100 C CN1180100 C CN 1180100C CN B001132970 A CNB001132970 A CN B001132970A CN 00113297 A CN00113297 A CN 00113297A CN 1180100 C CN1180100 C CN 1180100C
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China
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manganese
carbonate
waste
soluble
slag
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Expired - Fee Related
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CNB001132970A
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CN1311340A (en
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邓建成
邓隽
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Xiangtan University
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Xiangtan University
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Abstract

The present invention relates to a method for producing manganese carbonate from recycling manganese sulphate in waste manganese ore extract slag. The present invention solves the problem that environment pollution is caused by soluble manganese sulphate, and sufficiently utilized mineral resources. In the method of the present invention, waste extract slag which is left after manganese ore powder is leached by sulphuric acid for preparing sulphuric acid solution is used as raw material, and manganese sulphate solution in waste manganese ore extract slag which is leached by water is recovered. After impurities are removed, the manganese sulphate solution reacts with soluble carbonate solution (such as ammonium bicarbonate) to produce manganese carbonate, and other corresponding manganese products are prepared by the manganese carbonate. The method is suitable for various manufacturers which produce manganese products with manganese ore powder and sulphuric acid as raw material.

Description

Utilize waste manganese mud to soak the method that the manganous sulfate in the slag is produced manganous carbonate
Technical field
The present invention relates to a kind of method of producing manganous carbonate, particularly a kind of waste manganese mud that utilizes soaks the method that the manganous sulfate in the slag is produced manganous carbonate.
Background technology
Manganous sulfate, electrolytic metal Mn, the production of manganese goods such as electrolytic manganese dioxide, all be earlier manganese carbonate ore (rhodochrosite) to be used sulfuric acid to leach, make manganese sulfate solution, behind impurity removal and purification, be used for producing various corresponding manganese goods again, waste manganese mud behind sulfuric acid to leach soaks in the slag, and the manganese sulfate solution that contains weight about 30% own has been drained as refuse together in company with soaking slag.Through measuring and calculating, an electrolytic manganese dioxide factory that produces 10000 tons per year soaks the manganous sulfate that emits the slag from giving up and be converted to pure manganese up to more than 700 tons every year; Produce 3000 tons of electrolytic manganese factories per year for one, annual pure manganese of from soak slag, draining also up to 150 tons about.This has not only greatly wasted valuable Mineral resources, and the useless solubility manganous sulfate that soaks in the slag is returned environment and brought very big pollution.It is few that waste manganese mud soaks the manganese sulfate solution relative quantity of carrying secretly in the slag, though reclaiming with water extraction is most economical way, but because the manganese sulfate solution after reclaiming is very rare, add the manganese sulfate solution that reclaims is also wanted purification refine, the more cost that makes of operation is higher, and is if will reclaim the production that liquid is directly used in electrolytic metal Mn or electrolytic manganese dioxide, then very uneconomical economically, therefore, all manganese goods factories of China all do not recycle the manganous sulfate that waste manganese mud soaks in the slag to be carried secretly.Estimate not following 5000 tons of the annual pure manganese of wasting therefrom.So, if can solve the recycling waste manganese mud effectively and soak the manganous sulfate of carrying secretly in the slag, manganese resource is fully used, and can obtains favorable economic benefit, can also reduce environmental pollution simultaneously, its economy and society meaning is all very great.
Summary of the invention
The object of the present invention is to provide a kind of technology simple, the waste manganese mud that utilizes that production cost is low soaks the method that the manganous sulfate in the slag is produced manganous carbonate.
The objective of the invention is to realize by following approach: utilize waste manganese mud to soak the method that the manganous sulfate in the slag is produced manganous carbonate, it is to adopt following step:
1) will leach the waste manganese mud behind the manganese sulfate solution soaks in the leaching groove jar of slag input belt stirrer, add the 1-4 water doubly soak slag weight, add solubility villiaumite and dissolvable sulfide, make that calcium ions is lower than 20PPM in the solution, metal ion is lower than 10PPM, fully stirs; Described solubility villiaumite is a Neutral ammonium fluoride, and described dissolvable sulfide is a sodium sulphite;
2) stir leaching about 0.5 hour, after the filtration filtrate beaten to the high-order storage tank I standby;
3) with the soluble carbon hydrochlorate with deionized water by weight 180: 2000 or 100: 1500 dissolving, filter the back and beat extremely among the high-order storage tank II standby; Described carbonate is bicarbonate of ammonia;
4) under agitation, manganese sulfate solution among header tank I and the II and carbonate solution are injected reaction kettle for reaction simultaneously with the thread shape, its consumption is 1 by manganous sulfate and carbonate mol ratio: (1-6) feed intake, behind reinforced the finishing, continue stirring reaction about 0.5 hour;
5) with the reactant centrifugation, throw out is changed in the rinse bath, add deionized water, agitator treating is after 10 minutes, centrifuging, post precipitation repeats above-mentioned adding deionized water and stirring washing, centrifuging operation 2-3 time again;
6) will wash good throw out 55-60 ℃ of oven dry down, obtain manganese carbonate product.
The present invention utilizes waste manganese mud to soak manganous sulfate in the slag, and to produce the method technology of manganous carbonate simple, used device is few, employing is with water extraction, adding fluorochemical and sulfide removal of impurities carries out simultaneously, make technical process simple, the manganous sulfate that employing leaches out with soluble carbon acid salt solution precipitation becomes the method for manganese carbonate product, has solved in the infusion manganous sulfate and has crossed rare and difficulty that be difficult to recycle; It is the various purity of raw material production manganous carbonate that the manganese carbonate product that adopts this method to produce can reach with electrolytic metal Mn, and cost has only the latter half.This method be applicable to all various be the raw material production manganous sulfate with sulfuric acid and manganese ore powder, electrolytic metal Mn, the producer of electrolytic manganese dioxide and all relevant manganese goods uses.
Embodiment
With embodiment the present invention is described in further detail below:
Embodiment 1: soaking slag with the waste manganese mud of electrolytic manganese dioxide factory is that raw material is implemented method of the present invention:
The manganous sulfate refined soln concentration of electrolytic manganese dioxide factory is about 140gMn/L, and waste manganese mud soaks the manganous sulfate concentration of carrying secretly in the slag with 100gMn/L, and its proportion d=1.5 calculates.
Get waste manganese mud and soak 3 tons of inputs of slag 8M 3In the leaching can, add 4 tons of entry, start agitator, add 2Kg sodium sulphite, (calcium in the check leaching solution and copper, lead, cadmium, the isoionic content of mercury, as add Neutral ammonium fluoride or sodium sulphite when not reaching requirement), stir after 30 minutes, will leach thing pressure filter press filtration, (not limpid as solution, carry out the press filtration second time or vacuum filtration), refined liquid is squeezed among the high-order storage tank I standby with pump.
Take by weighing bicarbonate of ammonia 180Kg,, beat to the high-order storage tank II solution standby with filtration pump with deionized water 2 tons of dissolvings.
Manganese sulfate solution among the high-order storage tank I is put half (about 2 tons) to volume 8M 3Reactor in, start agitator, under the normal temperature, the ammonium bicarbonate soln among manganese sulfate solution among the high-order storage tank I and the high-order storage tank II is injected reactor simultaneously with constant speed.Feed intake finish after, continued stirring reaction 20 minutes, after the natural subsidence, the venting supernatant liquid, lower sediment changes the whizzer centrifugation over to, changes precipitation over to 1M then 3In the rinse bath, add deionized water 300Kg agitator treating after 10 minutes, centrifuging, precipitation is again with above-mentioned adding deionized water and stirring, centrifugal filtering method washing 2 times, the product that centrifugation obtains is put into enamel or Stainless Steel Disc, 55-60 ℃ of oven dry down, gets about manganese carbonate product 75Kg, quality can reach GB10503-89 I-III type, and the rate of recovery of manganous carbonate is about 75%.
Embodiment 2: raw material still soaks slag for the waste manganese mud with electrolytic manganese dioxide factory
Get waste manganese mud and soak 3 tons of slags, drop into 8M 3In the leaching can, add 4 tons of entry, start agitator and stir after 20 minutes, with pressure filter press filtration (not adding fluorochemical or sulfide).Each step is all identical with embodiment 1 later on.Can get about manganese carbonate product 75Kg, quality is the general industry manganous carbonate, and the rate of recovery of manganous carbonate is about 75%.
Embodiment 3: soaking slag with the waste manganese mud of electrolytic metal Mn factory is raw material
The manganous sulfate refined soln concentration of electrolytic manganese dioxide factory is about 38gMn/L, and waste manganese mud soaks the manganous sulfate concentration of carrying secretly in the slag with 35g/L, and its proportion d=1.3 calculates.
Get waste manganese mud and soak 3 tons of slags, drop into 8M 3In the leaching can, add 4 tons of entry, all the other operations are all carried out (wherein the bicarbonate of ammonia consumption is 100Kg, adds 1.5 tons of dissolvings of water) by embodiment 1.Can get about manganese carbonate product 30Kg GB10503-89 I-III type.

Claims (1)

1、一种利用废锰矿浸渣中的硫酸锰生产碳酸锰的方法,其特征是采用下述步骤:1, a kind of method utilizing the manganese sulfate in waste manganese ore leaching slag to produce manganese carbonate is characterized in that adopting following steps: 1)将浸取了硫酸锰溶液后的废锰矿浸渣投入带搅拌器的浸取槽罐中,加入浸渣重量的1-4倍的水,加入可溶性氟盐和可溶性硫化物,使溶液中含钙离子低于20PPM,含金属离子低于10PPM,充分搅拌;所述可溶性氟盐为氟化铵,所述可溶性硫化物为硫化钠;1) Put the waste manganese ore leaching slag after leaching the manganese sulfate solution into a leaching tank with a stirrer, add water 1-4 times the weight of the leaching slag, add soluble fluoride salts and soluble sulfides, and make the solution Containing calcium ions below 20PPM, containing metal ions below 10PPM, fully stirred; the soluble fluoride salt is ammonium fluoride, and the soluble sulfide is sodium sulfide; 2)搅拌浸取0.5小时左右,过滤后将滤液打至高位贮槽I中备用;2) stirring and leaching for about 0.5 hour, after filtering, the filtrate is beaten into the high-level storage tank 1 for subsequent use; 3)将可溶性碳酸盐用去离子水按重量比180∶2000或100∶1500溶解,过滤后打至高位贮槽II中备用;所述碳酸盐是碳酸氢铵;3) dissolving the soluble carbonate with deionized water at a weight ratio of 180:2000 or 100:1500, filtering and pouring into the high-level storage tank II for subsequent use; the carbonate is ammonium bicarbonate; 4)在搅拌下,将高位贮槽I和II中的硫酸锰溶液和碳酸盐溶液以细流状同时注入反应釜中反应,其用量按硫酸锰与碳酸盐摩尔比为1∶(1-6)投料,加料完毕后,继续搅拌反应0.5小时左右;4) under agitation, the manganese sulfate solution and the carbonate solution in the high level storage tank I and II are injected into the reactor in a trickle to react simultaneously, and its consumption is 1: (1 -6) Feeding, after the feeding is completed, continue to stir and react for about 0.5 hours; 5)将反应物离心分离,将沉淀物转入洗涤槽中,加入去离子水,搅拌洗涤10分钟后,离心过滤,沉淀后再重复上述加入去离子水搅拌洗涤、离心过滤操作2-3次;5) Centrifuge the reactant, transfer the precipitate into the washing tank, add deionized water, stir and wash for 10 minutes, then centrifugally filter, and then repeat the above-mentioned operation of adding deionized water to stir and wash and centrifugally filter for 2-3 times ; 6)将洗涤好的沉淀物在55-60℃下烘干,得到碳酸锰产品。6) drying the washed precipitate at 55-60° C. to obtain a manganese carbonate product.
CNB001132970A 2000-02-28 2000-02-28 Method for producing manganese carbonate by utilizing manganese sulfate in waste manganese ore leaching slag Expired - Fee Related CN1180100C (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102260797A (en) * 2011-07-22 2011-11-30 湘潭电化集团有限公司 Production process for reclaiming manganese from manganese-containing waste water and waste slag by using waste gas

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101579685B (en) * 2009-06-10 2010-10-27 重庆大学 A method for processing and utilizing electrolytic manganese waste residue
CN101704555A (en) * 2009-07-20 2010-05-12 贵州红星发展股份有限公司 Method for circularly purifying manganese sulfate and manganese carbonate
CN101704553B (en) * 2009-07-20 2012-11-07 贵州红星发展股份有限公司 Method for preparing manganese carbonate
CN102839286A (en) * 2012-09-26 2012-12-26 中信锦州金属股份有限公司 Method for recycling bivalent manganese in electrolytic manganese leached residues
CN102887545B (en) * 2012-10-15 2014-09-24 兰州大学 Method for preparing electronic grade manganese carbonate from manganese copper zinc cobalt calcium chloride solution
CN103789542B (en) * 2014-01-20 2015-10-07 中南大学 A kind of wet reducing leaching method of manganese oxide mineral
CN105481019B (en) * 2015-12-18 2017-05-24 长沙矿冶研究院有限责任公司 Method for removing alkaline-earth metal and heavy metal impurities in manganese sulfate solution
CN108752059B (en) * 2018-07-04 2021-05-11 重庆市地质矿产测试中心 Method for producing forest silicon-calcium-manganese composite mineral fertilizer by using manganese slag
CN109097578A (en) * 2018-07-17 2018-12-28 重庆上甲电子股份有限公司 A method of manganese carbonate is produced using aniline reduction electrolytic manganese anode mud
CN110127766A (en) * 2019-07-02 2019-08-16 贵州中伟资源循环产业发展有限公司 A kind of preparation process of LITHIUM BATTERY manganese sulfate solution

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102260797A (en) * 2011-07-22 2011-11-30 湘潭电化集团有限公司 Production process for reclaiming manganese from manganese-containing waste water and waste slag by using waste gas

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