CN104099479A - Process for producing zinc compound by acid and alkali combination method - Google Patents
Process for producing zinc compound by acid and alkali combination method Download PDFInfo
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- CN104099479A CN104099479A CN201410376432.2A CN201410376432A CN104099479A CN 104099479 A CN104099479 A CN 104099479A CN 201410376432 A CN201410376432 A CN 201410376432A CN 104099479 A CN104099479 A CN 104099479A
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Abstract
A process for producing zinc compound by an acid and alkali combination method includes steps of (1) dissolving a zinc-based material in an acid solution, filtering and purifying to obtain an acid zinc-based solution for reservation, (2) taking the other zinc-base material and dissolving the same in an alkali solution, filtering and purifying to obtain an alkali zinc-based solution for reservation, and (3) mixing the acid zinc-based solution and the alkali zinc-based solution according to the proportion of 1:1 to react to obtain a liquid, filtering the liquid to obtain a filter cake, washing the filter cake by two or three times with water, drying the filter cake at the temperature of 130-140 DEG C for 0.8-1.2 hours to obtain zinc hydroxide so as to obtain products according to production requirements. The process is simple and effective and needs a small quantity of acid and alkali solutions relatively; by the process, category range of products is wide and quality thereof is good; further, the process for producing zinc oxide at low temperature needs low energy consumption as compared with conventional methods so that production cost is lowered and production profit is high.
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 is produced the processing method of zinc compound.
Background technology
Zinc metal, zinc alloy, zn cpds are the mankind, moving one of the indispensable very important element of while of planting, but because produce much poisonous and hazardous gas and waste liquid and residue in the many product process relevant with zinc of refinement, the outer row of these wastes causes serious pollution to ecotope.Therefore, particularly thorny between the production and supply of zinc product and environment.If employing thermal process, it is very difficult meet the requirement of environmental protection, preferably adopts the production technique of full wet method in order well to solve contradiction between this supply and demand and environment.To the recovery of zinc compound material in order to produce zinc hydroxide, active zinc flower, feed oxide zinc, zinc simple substance etc., in conventional production process, the production technique of zinc hydroxide is mostly after material containing zinc Acidic Liquid Leaching Zinc, filtered filtrate purifies (removal of impurity), again the filtrate (scavenging solution) of filtering is obtained to filter cake with soda ash neutralization and filtration, drying obtains product.And active zinc flower production is to be added in Acidic Liquid with material containing zinc to carry out purification and impurity removal matter through filtering the zinc liquid that contains obtaining after agitation leach zinc in ordinary method, refilter afterwards and obtain the purer filter cake obtaining with rear filtration in zinc liquid soda ash liquid that contains, through washing separation with water, filter cake zinc carbonate decomposes and obtains product through high temperature (300～400 DEG C).
In above-mentioned ordinary method used, after needing extra acid or alkali to process in production zinc hydroxide, zinc oxide, just obtain single product, in these class methods, one is to expend the energy, ordinary method is produced the part that the high temperature needing in zinc oxide is also 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 being the problems such as consumptive material, technical process line products obtained therefrom be comparatively single in above-mentioned technology, invent a kind of using acid and alkali combination method and produce the processing method of zn cpds, be intended to the specification technological process of production, reduce to greatest extent consumptive material, use comparatively simple and direct technical process to produce more product.
For solving the problems of the technologies described above, technical solution of the present invention is as follows:
Using acid and alkali combination method is produced a processing method for zinc compound, comprises following operation steps:
(1) material containing zinc is used after acid leach solution Leaching Zinc, the filtrate that gained zinc-containing solution obtains is after filtration carried out purification and impurity removal, obtains acid scavenging solution, is acid containing zinc liquid, for subsequent use:
(2) get in addition material containing zinc and be added to alkali solution and stir and dissolve, then gained filters purification and impurity removal containing zinc liquid and obtains alkalescence containing zinc liquid scavenging solution, is alkalescence containing zinc liquid, for subsequent use;
(3) mix and react according to the ratio of 1:1 containing zinc liquid with gained alkalescence in step (2) containing zinc liquid acid gained in step (1), after reaction, gained feed liquid is filtered, gained filter cake washes with water 2～3 times, dry 0.8～1.2h for 130～140 DEG C, gained is zinc hydroxide, can be according to producing required production product.
Wherein, described in step (3), be that desired product is zinc hydroxide, and product is processed and obtained to step (3) gained zinc hydroxide according to producing required production product.
Wherein, described in step (3), according to producing required production product, when product is zinc oxide, step (3) gained zinc hydroxide is dried to 0.8～1.2h with 130～140 DEG C, obtain product.
Wherein, described in step (3), according to producing required production product, when product is zinc simple substance, step (3) gained zinc hydroxide is dissolved with electrolytic solution, 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:
Technical process of the present invention 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, thereby make production cost low, productive profit is large.
Brief description of the drawings
Fig. 1 is process flow sheet of the present invention.
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, protection domain of the present invention is not limited by embodiments of the present invention.Raw material used is the molten average Zn 55% of cadmia of zinc base alloy electro-coppering, nickel, Ni 11.5%, Cu 5.50%; Molten copper sponge and molten Zn dust: Zn 60%, Cu 3.50%.
Embodiment 1
The production of zinc hydroxide: zinc base alloy electro-coppering waste is dissolved after Leaching Zinc with excess sulfuric acid solution, the filtrate that gained zinc-containing solution obtains is after filtration carried out purification and impurity removal, obtaining acid scavenging solution is acid containing zinc liquid, for subsequent use: to get in addition zinc base alloy electro-coppering waste and add excessive sodium hydrate stirring to dissolve, gained filters then purification and impurity removal containing zinc liquid and obtains alkalescence containing zinc liquid scavenging solution, be alkalescence containing zinc, for subsequent use; Mix and react according to the ratio of 1:1 containing zinc liquid with above-mentioned gained alkalescence containing zinc liquid acid above-mentioned gained, after reaction, gained feed liquid is filtered, and gained filter cake washes with water 2～3 times, 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: molten nickel cadmia is dissolved after Leaching Zinc with excess sulfuric acid solution, the filtrate that gained zinc-containing solution obtains is after filtration carried out purification and impurity removal, obtaining acid scavenging solution is acid containing zinc liquid, for subsequent use: to get in addition the molten cadmia of nickel and add excessive sodium hydrate stirring to dissolve, gained filters then purification and impurity removal containing zinc liquid and obtains alkalescence containing zinc liquid scavenging solution, be alkalescence containing zinc, for subsequent use; Mix and react according to the ratio of 1:1 containing zinc liquid with above-mentioned gained alkalescence containing zinc liquid acid above-mentioned gained, after reaction, gained feed liquid is filtered, gained filter cake washes with water 2～3 times, then dry 1h with 120 DEG C,, gained is zinc hydroxide, then 120 DEG C of zinc hydroxides is dried to 1h, obtain product, gained zinc oxide can be active zinc flower, feed oxide zinc.
Embodiment 3
The production of simple substance zinc: will melt copper sponge waste excess sulfuric acid solution and dissolve after Leaching Zinc, the filtrate that gained zinc-containing solution obtains is after filtration carried out purification and impurity removal, obtaining acid scavenging solution is acid containing zinc liquid, for subsequent use: to get in addition molten copper sponge and molten Zn dust and add excessive sodium hydrate stirring to dissolve, gained filters then purification and impurity removal containing zinc liquid and obtains alkalescence containing zinc liquid scavenging solution, be alkalescence containing zinc, for subsequent use; Mix and react according to the ratio of 1:1 containing zinc liquid with above-mentioned gained alkalescence containing zinc liquid acid above-mentioned gained, after reaction, gained feed liquid is filtered, gained filter cake washes with water 2～3 times, dry 0.8h with 140 DEG C, gained is zinc hydroxide, then zinc hydroxide is dissolved with excessive acid electrolyte, passes in electrolyzer, pass into direct current and carry out electrolysis, obtain zinc simple substance.
Embodiment 4
The production of simple substance zinc: will melt Zn dust waste excess sulfuric acid solution and dissolve after Leaching Zinc, the filtrate that gained zinc-containing solution obtains is after filtration carried out purification and impurity removal, obtaining acid scavenging solution is acid containing zinc liquid, for subsequent use: to get in addition molten copper sponge and molten Zn dust and add excessive sodium hydrate stirring to dissolve, gained filters then purification and impurity removal containing zinc liquid and obtains alkalescence containing zinc liquid scavenging solution, be alkalescence containing zinc, for subsequent use; Mix and react according to the ratio of 1:1 containing zinc liquid with above-mentioned gained alkalescence containing zinc liquid acid above-mentioned gained, after reaction, gained feed liquid is filtered, gained filter cake washes with water 2～3 times, dry 1h with 120 DEG C, gained is zinc hydroxide, then zinc hydroxide is dissolved with excessive alkaline electrolyte, passes in electrolyzer, pass into direct current and carry out electrolysis, obtain zinc simple substance.
Technical process of the present invention 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, thereby make production cost low, productive profit is large.
Claims (7)
1. using acid and alkali combination method is produced 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 filters in succession and purification obtains acidic solution, is acid containing zinc liquid, for subsequent use;
(2) get in addition material containing zinc and add basic solution to dissolve, gained zinc-containing solution filters in succession and purification obtains basic solution, and alkalescence is containing zinc liquid, for subsequent use;
(3) mix and react according to the ratio of 1:1 containing zinc liquid with gained alkalescence in step (2) containing zinc liquid acid gained in step (1), after reaction, gained feed liquid is filtered, gained filter cake washes with water 2～3 times, dry 0.8～1.2h for 130～140 DEG C, gained is zinc hydroxide, can be according to producing required production product.
2. the processing method that using acid and alkali combination method is produced zinc compound according to claim 1, it is characterized in that: described in step (3), according to producing required production product be, desired product is zinc hydroxide, and product is processed and obtained to step (3) gained zinc hydroxide.
3. the processing method that using acid and alkali combination method is produced zinc compound according to claim 1, it is characterized in that: described in step (3) according to produce required production product, when product is zinc oxide, step (3) gained zinc hydroxide is dried to 0.8～1.2h with 130～140 DEG C, obtain product.
4. the processing method that using acid and alkali combination method is produced zinc compound according to claim 1, it is characterized in that: described in step (3) according to produce required production product, when product is zinc simple substance, step (3) gained zinc hydroxide is dissolved with electrolytic solution, then pass into logical direct current in electrolyzer and carry out electrolysis, obtain zinc simple substance.
5. the processing method that using acid and alkali combination method is produced zinc compound according to claim 1, is characterized in that: the acidic solution described in step (1) is sulfuric acid, consumption is excessive.
6. the processing method that using acid and alkali combination method is produced zinc compound according to claim 1, is characterized in that: the basic solution described in step (2) is sodium hydroxide, consumption is excessive.
7. the processing method that using acid and alkali combination method is produced zinc compound according to claim 4, is characterized in that: described electrolytic solution is the one in acid electrolyte or alkali formula electrolytic solution.
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| CN201410376432.2A CN104099479B (en) | 2014-07-31 | 2014-07-31 | A kind of using acid and alkali combination method produces the processing method of zinc compound |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (3)
| 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 |
| JP2005213527A (en) * | 2004-01-27 | 2005-08-11 | Jfe Engineering Kk | Method for dechlorinating zinc hydroxide |
| 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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2014
- 2014-07-31 CN CN201410376432.2A patent/CN104099479B/en active Active
Patent Citations (3)
| 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 |
| JP2005213527A (en) * | 2004-01-27 | 2005-08-11 | Jfe Engineering Kk | Method for dechlorinating zinc hydroxide |
| 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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