CN104099479B - A kind of using acid and alkali combination method produces the processing method of zinc compound - Google Patents
A kind of using acid and alkali combination method produces the processing method of zinc compound Download PDFInfo
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- CN104099479B CN104099479B CN201410376432.2A CN201410376432A CN104099479B CN 104099479 B CN104099479 B CN 104099479B CN 201410376432 A CN201410376432 A CN 201410376432A CN 104099479 B CN104099479 B CN 104099479B
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Abstract
Using acid and alkali combination method produces the processing method of zinc compound, and step is: (1), by material containing zinc acid leach solution, solution carries out filtering in succession and purification obtains acidic solution, is acid containing zinc liquid, for subsequent use; (2) get material containing zinc in addition and add basic solution dissolving, zinc-containing solution filters in succession and purification obtains basic solution, and namely alkalescence is for subsequent use containing zinc liquid; (3) gained acidity is contained zinc liquid containing zinc liquid and gained alkalescence to mix according to the ratio of 1:1 and react, after reaction, gained feed liquid is filtered, gained filter cake washes 2 ~ 3 times with water, dry 0.8 ~ 1.2h for 130 ~ 140 DEG C, gained is zinc hydroxide, can produce product according to production is required.Present invention process flow process is simple and direct, and production efficiency is high, expends acid & alkali liquid relatively less, utilizes this processing method products obtained therefrom kind more, quality is good, further, and less energy consumption of the present invention, utilize temperature production zinc oxide lower than the energy consumption of ordinary method, thus make production cost low, productive profit is large.
Description
Technical field
The present invention relates to a kind of processing method of producing zn cpds, particularly a kind of using acid and alkali combination method produces the processing method of zinc compound.
Background technology
Zinc metal, zinc alloy, zn cpds are the mankind, move one of very important element while of planting indispensable, but because producing much poisonous and hazardous gas and waste liquid and residue in the many product process relevant with zinc of refinement, these wastes are arranged outward and are caused serious pollution to ecotope.Therefore, particularly thorny between the production and supply of zinc product and environment.If employing thermal process, meet the requirement of environmental protection to be very difficult, in order to the contradiction well solved between this supply and demand and environment preferably adopts the production technique of Whote-wet method.To the recovery of zinc compound material in order to produce zinc hydroxide, active zinc flower, feed oxide zinc, zinc simple substance etc., after in conventional production process, the production technique of zinc hydroxide is mostly material containing zinc Acidic Liquid Leaching Zinc, filtered filtrate carrying out purifies (removal of impurity), again the filtrate (scavenging solution) of filtering is obtained filter cake with soda ash neutralization and filtration, drying obtains product.And active zinc flower production is added in Acidic Liquid with material containing zinc to carry out purification and impurity removal matter through filtering the zinc liquid that contains obtained after agitation leach zinc in ordinary method, refilter afterwards obtain purer containing in zinc liquid soda ash liquid and the filter cake that obtains of rear filtration, through washing separation with water, filter cake zinc carbonate obtains product through high temperature (300 ~ 400 DEG C) decomposition.
By in above-mentioned ordinary method used, produce after needing extra acid or alkali to process in zinc hydroxide, zinc oxide and just obtain single product, in these class methods, one is expend the energy, the high temperature that ordinary method is produced to be needed in zinc oxide is also a part for power consumption, and above-mentioned technical process production line is comparatively single, the getable product of institute is more single.
Summary of the invention
For there is the problems such as consumptive material, technical process line products obtained therefrom be comparatively single in above-mentioned technology, invent the processing method that a kind of using acid and alkali combination method produces zinc compound, be intended to the specification technological process of production, reduce consumptive material to greatest extent, produce more product with comparatively simple and direct technical process.
For solving the problems of the technologies described above, technical solution of the present invention is as follows:
Using acid and alkali combination method produces a processing method for zinc compound, comprises following operation steps:
(1) by material containing zinc with after acid leach solution Leaching Zinc, the filtrate that gained zinc-containing solution obtains after filtration carries out purification and impurity removal, obtains acid scavenging solution, is acid containing zinc liquid, for subsequent use:
(2) get material containing zinc to be in addition added to alkali solution and to stir and dissolve, gained carries out filtering then purification and impurity removal containing zinc liquid and obtains alkalescence containing zinc liquid scavenging solution, is alkalescence containing zinc liquid, for subsequent use;
(3) gained acidity in step (1) is contained zinc liquid containing zinc liquid and gained alkalescence in step (2) to mix according to the ratio of 1:1 and react, after reaction, gained feed liquid is filtered, gained filter cake washes 2 ~ 3 times with water, dry 0.8 ~ 1.2h for 130 ~ 140 DEG C, gained is zinc hydroxide, can produce product according to production is required.
Wherein, needed for production, producing product described in step (3) is, when product is zinc hydroxide, processed and obtain product by step (3) gained zinc hydroxide.
Wherein, produce product according to production is required described in step (3), when product is zinc oxide, then step (3) gained zinc hydroxide is dried 0.8 ~ 1.2h with 130 ~ 140 DEG C, obtain product.
Wherein, produce product according to production is required described in step (3), when product is zinc simple substance, then step (3) gained zinc hydroxide electrolytic solution is dissolved, then pass into logical direct current in electrolyzer and carry out electrolysis, obtain zinc simple substance.
Wherein, the acidic solution described in step (1) is sulfuric acid, and consumption is excessive.
Wherein, the basic solution sodium hydroxide described in step (2), consumption is excessive.
Wherein, described electrolytic solution is the one in acid electrolyte or alkali formula electrolytic solution.
Beneficial effect of the present invention:
Present invention process flow process is simple and direct, and production efficiency is high, expends acid & alkali liquid relatively less, utilizes this processing method products obtained therefrom kind more, quality is good, further, and less energy consumption of the present invention, utilize temperature production zinc oxide lower than the energy consumption of ordinary method, thus make production cost low, productive profit is large.
Accompanying drawing explanation
Fig. 1 is present invention process schema.
Embodiment
Further describe the present invention referring to embodiment, to make those skilled in the art can implement according to this with reference to specification sheets word, scope is not limited by embodiments of the present invention.Raw material used is zinc base alloy electro-coppering, nickel melts cadmia average Zn55%, Ni11.5%, Cu5.50%; Molten copper sponge and molten Zn dust: Zn60%, Cu3.50%.
Embodiment 1
The production of zinc hydroxide: by zinc base alloy electro-coppering waste with after excess sulfuric acid solubilize Leaching Zinc, the filtrate that gained zinc-containing solution obtains after filtration carries out purification and impurity removal, obtaining acid scavenging solution is acid containing zinc liquid, for subsequent use: get in addition zinc base alloy electro-coppering waste add excessive sodium hydrate stir dissolve, gained carries out filtering then purification and impurity removal containing zinc liquid and obtains alkalescence containing zinc liquid scavenging solution, be alkalescence containing zinc, for subsequent use; Above-mentioned gained acidity is contained zinc liquid containing zinc liquid and above-mentioned gained alkalescence to mix according to the ratio of 1:1 and react, after reaction, gained feed liquid is filtered, and gained filter cake washes 2 ~ 3 times with water, then dries 1.2h with 130 DEG C, the zinc hydroxide of gained is packed, and obtains product.
Embodiment 2
The production of zinc oxide: after nickel being melted cadmia excess sulfuric acid solubilize Leaching Zinc, the filtrate that gained zinc-containing solution obtains after filtration carries out purification and impurity removal, obtaining acid scavenging solution is acid containing zinc liquid, for subsequent use: get in addition nickel melt cadmia add excessive sodium hydrate stir dissolve, gained carries out filtering then purification and impurity removal containing zinc liquid and obtains alkalescence containing zinc liquid scavenging solution, be alkalescence containing zinc, for subsequent use; Above-mentioned gained acidity is contained zinc liquid containing zinc liquid and above-mentioned gained alkalescence to mix according to the ratio of 1:1 and react, after reaction, gained feed liquid is filtered, gained filter cake washes 2 ~ 3 times with water, then 1h is dried with 120 DEG C, gained is zinc hydroxide, then zinc hydroxide 120 DEG C is dried 1h, obtain product, gained zinc oxide can be active zinc flower, feed oxide zinc.
Embodiment 3
The production of simple substance zinc: after copper sponge waste excess sulfuric acid solubilize Leaching Zinc will be melted, the filtrate that gained zinc-containing solution obtains after filtration carries out purification and impurity removal, obtaining acid scavenging solution is acid containing zinc liquid, for subsequent use: to get molten copper sponge and molten Zn dust in addition and add excessive sodium hydrate and stir and dissolve, gained carries out filtering then purification and impurity removal containing zinc liquid and obtains alkalescence containing zinc liquid scavenging solution, be alkalescence containing zinc, for subsequent use; Above-mentioned gained acidity is contained zinc liquid containing zinc liquid and above-mentioned gained alkalescence to mix according to the ratio of 1:1 and react, after reaction, gained feed liquid is filtered, gained filter cake washes 2 ~ 3 times with water, 0.8h is dried with 140 DEG C, gained is zinc hydroxide, is then dissolved by the excessive acid electrolyte of zinc hydroxide, passes in electrolyzer, pass into direct current and carry out electrolysis, obtain zinc simple substance.
Embodiment 4
The production of simple substance zinc: after Zn dust waste excess sulfuric acid solubilize Leaching Zinc will be melted, the filtrate that gained zinc-containing solution obtains after filtration carries out purification and impurity removal, obtaining acid scavenging solution is acid containing zinc liquid, for subsequent use: to get molten copper sponge and molten Zn dust in addition and add excessive sodium hydrate and stir and dissolve, gained carries out filtering then purification and impurity removal containing zinc liquid and obtains alkalescence containing zinc liquid scavenging solution, be alkalescence containing zinc, for subsequent use; Above-mentioned gained acidity is contained zinc liquid containing zinc liquid and above-mentioned gained alkalescence to mix according to the ratio of 1:1 and react, after reaction, gained feed liquid is filtered, gained filter cake washes 2 ~ 3 times with water, 1h is dried with 120 DEG C, gained is zinc hydroxide, is then dissolved by the excessive alkaline electrolyte of zinc hydroxide, passes in electrolyzer, pass into direct current and carry out electrolysis, obtain zinc simple substance.
Present invention process flow process is simple and direct, and production efficiency is high, expends acid & alkali liquid relatively less, utilizes this processing method products obtained therefrom kind more, quality is good, further, and less energy consumption of the present invention, utilize temperature production zinc oxide lower than the energy consumption of ordinary method, thus make production cost low, productive profit is large.
Claims (7)
1. using acid and alkali combination method produces a processing method for zinc compound, it is characterized in that, comprises following operation steps:
(1) by material containing zinc acid leach solution, gained zinc-containing solution carries out filtering in succession and purification obtains acidic solution, is acid containing zinc liquid, for subsequent use;
(2) get material containing zinc in addition to add basic solution and dissolve, gained zinc-containing solution carries out filtering in succession and purification obtains basic solution, and namely alkalescence is containing zinc liquid, for subsequent use;
(3) gained acidity in step (1) is contained zinc liquid containing zinc liquid and gained alkalescence in step (2) to mix according to the ratio of 1:1 and react, after reaction, gained feed liquid is filtered, gained filter cake washes 2 ~ 3 times with water, dry 0.8 ~ 1.2h for 130 ~ 140 DEG C, gained is zinc hydroxide, can produce product according to production is required.
2. using acid and alkali combination method produces the processing method of zinc compound according to claim 1, it is characterized in that: described in step (3) according to the required product of producing of production be, when product is zinc hydroxide, step (3) gained zinc hydroxide is processed and obtained product.
3. using acid and alkali combination method produces the processing method of zinc compound according to claim 1, it is characterized in that: described in step (3), produce product according to production is required, when product is zinc oxide, then step (3) gained zinc hydroxide is dried 0.8 ~ 1.2h with 130 ~ 140 DEG C, obtain product.
4. using acid and alkali combination method produces the processing method of zinc compound according to claim 1, it is characterized in that: described in step (3), produce product according to production is required, when product is zinc simple substance, then step (3) gained zinc hydroxide electrolytic solution is dissolved, then pass into logical direct current in electrolyzer and carry out electrolysis, obtain zinc simple substance.
5. using acid and alkali combination method produces the processing method of zinc compound according to claim 1, and it is characterized in that: the acidic solution described in step (1) is sulfuric acid, consumption is excessive.
6. using acid and alkali combination method produces the processing method of zinc compound according to claim 1, and it is characterized in that: the basic solution described in step (2) is sodium hydroxide, consumption is excessive.
7. using acid and alkali combination method produces the processing method of zinc compound according to claim 4, it is characterized in that: described electrolytic solution is the one in acid electrolyte or alkali formula electrolytic solution.
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| CN109881011A (en) * | 2019-03-20 | 2019-06-14 | 北京航天国环技术有限公司 | A method of recycling zinc |
| CN110200292A (en) * | 2019-06-26 | 2019-09-06 | 浙江大学 | The soluble environment-friendly preparation method thereof with insoluble diedairy fiber in a kind of fruits and vegetables residue |
| CN112811540A (en) * | 2021-01-04 | 2021-05-18 | 奉节县体育发展中心 | Swimming pool disinfection method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1418972A (en) * | 2002-11-28 | 2003-05-21 | 王树楷 | Method for preparing nano active zinc oxide from low grade zinc containing material |
| CN101760613A (en) * | 2008-12-02 | 2010-06-30 | 中国恩菲工程技术有限公司 | Method for leaching zinc-containing ores |
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| JP2005213527A (en) * | 2004-01-27 | 2005-08-11 | Jfe Engineering Kk | Method for dechlorinating zinc hydroxide |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1418972A (en) * | 2002-11-28 | 2003-05-21 | 王树楷 | Method for preparing nano active zinc oxide from low grade zinc containing material |
| CN101760613A (en) * | 2008-12-02 | 2010-06-30 | 中国恩菲工程技术有限公司 | Method for leaching zinc-containing ores |
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