CN103787483A - Method and equipment for treating acidic etching waste liquor - Google Patents
Method and equipment for treating acidic etching waste liquor Download PDFInfo
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- CN103787483A CN103787483A CN201210435413.3A CN201210435413A CN103787483A CN 103787483 A CN103787483 A CN 103787483A CN 201210435413 A CN201210435413 A CN 201210435413A CN 103787483 A CN103787483 A CN 103787483A
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Abstract
The invention provides a method and equipment for treating acidic etching waste liquor. The method comprises the following steps of: collecting the acidic etching waste liquor into a liquor storage tank; hanging an aluminum sheet in a primary reaction kettle, pumping the acidic etching waste liquor into the primary reaction kettle for primary reaction; hanging the aluminum sheet in a secondary reaction kettle, filtering a solution obtained after the primary reaction is completed to obtain high-purity solid copper, and washing the high-purity solid copper; pumping the filtered solution into the secondary reaction kettle for secondary reaction; filtering an aluminum chloride solution obtained after the secondary reaction is completed to obtain the high-purity solid copper, and washing the high-purity solid copper; pumping the filtered aluminum chloride solution into an aging adjusting groove, heating the aging adjusting groove, and regulating the pH value of the aluminum chloride solution by adding an alkaline neutralization agent till the pH value is detected to be qualified; screening the high-purity solid copper, and conveying screened copper powder to a rotary calcining kiln for calcination to produce high-purity copper oxide powder. The method provided by the invention can be used for extracting the copper contained in the acidic etching waste liquor in a high-purity copper oxide mode and transforming the acidic etching waste liquor into a polyaluminium chloride solution. According to the invention, no waste water is discharged in an integral process flow.
Description
Technical field
The present invention relates to a kind of industrial effluent treatment process and equipment, relate in particular to a kind of method and apparatus of processing acidic etching waste liquid.
Background technology
Acidic etching waste liquid is a kind of waste liquid of printed circuit board in etching work procedure output, and copper content is generally at 110 ~ 130g/l, and free hydrochloric acid concentration is generally 1 ~ 3mol/l.The processing mode of this waste liquid routine is to add alkaline etching waste liquid for producing or the neutralization of other alkaline materials, and copper is precipitated with the form of copper hydroxide.Qualified discharge after solution adjustment pH value after heavy copper.Because of the ammonium chloride that contains 60 ~ 100g/l left and right in general acidic etching waste liquid, the greatest problem that therefore this conventional processing mode exists is in the waste liquid of carrying after copper, residual a large amount of ammonia nitrogen.Ammonia nitrogen in waste liquid is wanted qualified discharge, and required equipment and expense are very high, and general enterprises cannot bear.Cause a large amount of entering in environment containing ammonia nitrogen waste liquid, cause the chronic pollution of environment.
The Chinese invention patent that the patent No. is 200510095619 provides a kind of high-efficient environment treating method of acidic etching waste liquid, its step is as follows: acidic etching waste liquid is put into reaction cylinder, first add in lime powder or heavy calcium carbonate and free hydrochloric acid, then slowly add light calcium carbonate, add again a small amount of lime powder, will be containing copper component Precipitation copper quarrel, then through solid-liquid separation, the concentrated calcium chloride of preparing of filtrate, copper quarrel is prepared copper sulfate with sulfuric acid reaction.The present invention can reclaim the copper in acidic etching waste liquid with valuable constituent copper sulfate, and produced pollution source muriate in existing treatment process can be changed into valuable constituent calcium chloride, improve the transformation efficiency of valuable constituent, and discharge without waste water,waste gas and industrial residue, stop secondary pollution, very environmental protection, reduces processing cost, the complete cycling and reutilization of realizing resource, economizes on resources.Suitability for industrialized production is very convenient, is a kind of novel high-efficiency environment protection acidic etching waste liquor treatment process.
But, the method complex process that above-mentioned patent provides, controlling unit is many.Because the content of hydrochloric acid in waste liquid is at 1 ~ 3 mol/l, product calcium chloride content that directly neutralization obtains is low, impurity is high, needs concentrated more than 30% concentration that GB requires that just can reach.And concentration process consumes heat energy, increase product cost.Because containing ammonium chloride in acid waste liquid, neutralize neutrality or meta-alkalescence with alkaline material near time, in solution, produce free ammonia simultaneously, ammonia and copper carbonate or copper hydroxide reaction, form cuprammonium complexing ion, cause the cupric ion in solution to exceed standard, generally up to more than 1g/l.Therefore, the solution exceeding standard with this cupric ion concentrates prepares calcium chloride, and by the cupric ion severe overweight causing in product calcium chloride, not only contaminate environment, also will affect calcium chloride quality product.Being shown by upper analysis and practice, there is following defect in the treatment process that existing conventional treatment method and above-mentioned patent provide:
1, the waste liquid that conventional treatment method is carried after copper generally will be arranged outward, causes the pollution of environment.
2, acidic etching waste liquid is generally prepared into copper sulfate product or copper ashes, and copper sulfate value-added content of product is low, and at present more and more stricter to the specification of quality of copper sulfate product, and the cost of preparing qualified copper sulfate is higher, deficiency in economic performance.
3, the calcium chloride market that the treatment process that above-mentioned patent provides is produced is less, and product price is low.And technological process is many, energy consumption is high, there is no economic worth, can not marketing.
Summary of the invention
The object of the present invention is to provide a kind of method and apparatus of processing acidic etching waste liquid, thoroughly solve the problems such as acidic etching waste liquid contaminate environment, value of the product be lower with being difficult to of solving that prior art exists.
In order to address the above problem, the invention provides a kind of method of processing acidic etching waste liquid, it comprises the following steps: collect in acidic etching waste liquid to container for storing liquid; In primary first-order equation still, hang aluminium flake, acidic etching waste liquid is pumped into and in primary first-order equation still, carries out primary first-order equation; In secondary reaction still, hang aluminium flake, filter primary first-order equation complete solution, obtain high purity solid copper and clean high purity solid copper, the solution after filtering is pumped into and in secondary reaction still, carries out secondary reaction; Filter the complete liquor alumini chloridi of secondary reaction, obtain high purity solid copper and clean high purity solid copper; Liquor alumini chloridi after filtration pumps into slaking adjustment tank, and adds thermomaturation adjustment tank, adds the pH value of alkaline neutraliser adjustment liquor alumini chloridi qualified to detecting; Screening high purity solid copper, the copper powder under sieve is transported to the roasting of revolution roasting kiln, with output high-purity cupric oxide powder.
In a kind of preferred implementation of aforesaid method, in the acidic etching waste liquid of collection, the content of copper is 80 ~ 140g/l.
In a kind of preferred implementation of aforesaid method, in primary first-order equation still, every cube of reactor volume hangs 80 kilograms of aluminium flakes;
And, in the time carrying out primary first-order equation, first make the aluminium flake of acidic etching waste liquid contact basecoat, to react after 10 ~ 20 minutes, the aluminium flake reaction of basecoat is complete; Pump into again 1 ~ 2 cubic metre of acidic etching waste liquid, make the aluminium flake reaction of acidic etching waste liquid and last layer after 10 ~ 20 minutes; By that analogy, until the last one deck aluminium flake of acidic etching waste liquid submergence, after primary first-order equation, the cupric ion of controlling in the complete solution of primary first-order equation is reduced to 10 ~ 30g/l.
In a kind of preferred implementation of aforesaid method, in secondary reaction still, every cube of reactor volume hangs 20 kilograms of aluminium flakes; And, high purity solid copper is cleaned up for subsequent use;
The complete solution of primary first-order equation pumps into secondary reaction still together with cleaning the rinse water of high purity solid copper; It is the same that the process pumping into and acidic etching waste liquid pump into primary first-order equation still.
In a kind of preferred implementation of aforesaid method, in slaking adjustment tank, by steam heating, the temperature of liquor alumini chloridi is elevated to 90 ~ 100 degrees Celsius, slowly add alkaline material, adjust the pH value of liquor alumini chloridi, control the pH value of liquor alumini chloridi to 2.0-3.0; Then stop heating, liquor alumini chloridi is pumped into underground storage tank, continue slaking at underground storage tank, sampling detects, and detects after qualified and pumps into end product pool.
In a kind of preferred implementation of aforesaid method, when screening high purity solid copper, high purity solid copper is entered to 200 object sieve apparatus, the copper powder under sieve is transported to the roasting of revolution roasting kiln by rotary conveyor, copper powder on sieve enters shredder and grinds, screening again after grinding.
In a kind of preferred implementation of aforesaid method, when copper powder enters to turn round roasting kiln roasting, controlling temperature is 800 ~ 950 degrees Celsius, adds speed to feed in raw material by the design production capacity of revolution roasting kiln.
In a kind of preferred implementation of aforesaid method, also comprise: acid waste gas to washing tower producing in output primary first-order equation, secondary reaction, and the solution producing after washing is mixed with acidic etching waste liquid.
In a kind of preferred implementation of aforesaid method, by the washing water that clean high purity solid copper with mix with acidic etching waste liquid.
In order to address the above problem, the present invention also provides a kind of equipment of processing acidic etching waste liquid, and it comprises: container for storing liquid, for storing acidic etching waste liquid; Mix reservoir, be connected with the output interface of described container for storing liquid, for mixing multiple solution; Primary first-order equation still, is connected with the described output interface that mixes container for storing liquid, for there is the primary first-order equation of acidic etching waste liquid and aluminium flake; Secondary reaction still, is connected with the output interface of described primary first-order equation still, for there is the secondary reaction of solution and aluminium flake after primary first-order equation; Strainer, is connected with the output interface of described primary first-order equation still, described secondary reaction still, for filtering the high purity solid copper after primary first-order equation, secondary reaction; Rinse bath, is connected with an output interface of described strainer, for cleaning high purity solid copper, and an output interface of described rinse bath with described in mix reservoir and be connected to export the washing water that clean high purity solid copper; High purity solid copper container, is connected with another output interface of described rinse bath, for storing high purity solid copper; Sieve apparatus, is connected with the output interface of described high purity solid copper container, for sieving described high purity solid copper; Revolution roasting kiln, is connected with the output interface of described sieve apparatus, for by sieve under the roasting of high purity solid copper be cupric oxide; Slaking adjustment tank, is connected with another output interface of described strainer, for slaking and add alkaline neutraliser adjustment to filter the liquor alumini chloridi after high purity solid copper.
In a kind of preferred implementation of aforesaid device, also comprise shredder, described shredder is connected with described sieve apparatus, for grinding the high purity solid copper on sieve and being delivered to described sieve apparatus continuation screening by grinding qualified high purity solid copper.
In a kind of preferred implementation of aforesaid device, also comprise washing tower, described washing tower and a cycles of washing pond and described in mix reservoir and be connected, described washing tower is used for washing the acid waste gas of primary first-order equation still, the generation of secondary reaction still, and mixes reservoir described in the solution after washing is delivered to.
In a kind of preferred implementation of aforesaid device, also comprise alkaline blender take-off equipment, described alkaline blender take-off equipment is connected with described cycles of washing pond, for exporting alkaline blender to described cycles of washing pond.
In a kind of preferred implementation of aforesaid device, also comprise fresh water take-off equipment, described fresh water take-off equipment with described in mix reservoir, described rinse bath is connected, for to describedly mixing reservoir, described rinse bath is exported fresh clear water.
The present invention can thoroughly solve acidic etching waste liquid and carry the problem of environmental pollution that the solution after copper causes, and reaches wastewater zero discharge, and the copper in waste liquid is processed into high-purity cupric oxide powder, produces good economic benefit, and can Industry Promotion.Compare with existing the whole bag of tricks, the present invention one extracts the copper in waste liquid in the mode of high-purity copper oxide, have very high economic worth.The 2nd, waste liquid is changed into polymeric aluminum chlorides solution and sell, whole technological process is arranged outward without waste water.
Accompanying drawing explanation
Fig. 1 is the functional block diagram of the preferred embodiment of the equipment of processing acidic etching waste liquid of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further details.
Fig. 1 not only schematically shows the theory structure of equipment preferred embodiment of the present invention, and arrow wherein expressed, the throughput direction of solution or solid when the application of this preferred embodiment.
As shown in Figure 1, this preferred embodiment comprise container for storing liquid 1, mix reservoir 2, primary first-order equation still 3, secondary reaction still 4, strainer 5, slaking adjustment tank 6, finished product storage pond 7, fresh water take-off equipment 8, washing water storage tank 9, rinse bath 10, high purity solid copper container 11, sieve apparatus 12, revolution roasting kiln 13, shredder 14, alkaline blender take-off equipment 15, cycles of washing pond 16, washing tower 17.Annexation between each parts and the flow direction of respective media as shown in the figure, repeat no more.Wherein, container for storing liquid 1 is for storing the acidic etching waste liquid of collection.Mix reservoir 2 for mixing multiple solution.For there is the primary first-order equation of acidic etching waste liquid and aluminium flake in primary first-order equation still 3.For there is the secondary reaction of solution and aluminium flake after primary first-order equation in secondary reaction still 4.Strainer 5 is for filtering the high purity solid copper after primary first-order equation, secondary reaction.Slaking adjustment tank 6 is for slaking and add alkaline neutraliser adjustment to filter high purity solid copper liquor alumini chloridi afterwards.Qualified liquor alumini chloridi is detected for storing in finished product storage pond 7.Fresh water take-off equipment 8 is for exporting fresh clear water.The washing water that washing water storage tank 9 produces for collecting, store and export washing high purity solid copper.Rinse bath 10 is for cleaning high purity solid copper.High purity solid copper container 11 is for storing high purity solid copper.Sieve apparatus 12 is for sieving high purity solid copper.Revolution roasting kiln 13 for by sieve under the roasting of high purity solid copper be cupric oxide.Shredder 14 is for the high purity solid copper on the larger sieve of abrasive grains degree, grind qualified after, then be delivered to sieve apparatus 12.Alkalescence blender take-off equipment 15 is for exporting alkaline blender to cycles of washing pond 16, and washing tower 17 and cycles of washing pond 16, for washing acid waste gas that primary first-order equation, secondary reaction produce also, are delivered to the solution after washing to mix reservoir.
In the time utilizing the preferred embodiment shown in Fig. 1 to produce, can take following steps:
The acidic etching waste liquid of collecting is stored in container for storing liquid 1, preferably, acidic etching waste liquid cupric 80 ~ 140g/l.
In primary first-order equation still 3, hang aluminium flake, generally hang 80 kilograms of aluminium flakes by every cube of reactor volume.
The solution producing in acidic etching waste liquid in container for storing liquid 1 and other steps is evenly mixed mixing in container for storing liquid 2, then slowly pump into and in primary first-order equation still 3, carry out primary first-order equation, first make the aluminium flake of acidic etching waste liquid contact basecoat, react after 10 ~ 20 minutes, the aluminium flake reaction of this one deck is complete.Pump into again 1 ~ 2 cube of acidic etching waste liquid, make the aluminium flake reaction of solution and last layer after 10 ~ 20 minutes; By that analogy, until solution is immersed into last one deck aluminium flake.In the process of primary first-order equation, solution temperature can be elevated to more than 60 degrees Celsius, therefore need to control the each add-on of acidic etching waste liquid.After primary first-order equation, the cupric ion in solution is reduced to 10 ~ 30g/l.
In secondary reaction still 4, hang aluminium flake, hang 20 kilograms of aluminium flakes by every cube of reactor volume.
The solution that primary first-order equation is complete, enters strainer 5 and filters, and obtains high purity solid copper, then washs high purity solid copper, and the jumbo bag that is used as high purity solid copper container 11 after high purity solid copper cleans up installs for subsequent use.Solution and rinse water (rinse water also can enter washing water storage tank 9) can together with pump into secondary reaction still 4; The process pumping into is the same with primary first-order equation still 3, pumps into 1 ~ 2 cube at every turn, reacts after 10 ~ 20 minutes.
Continue to pump into, until all aluminium flakes of submergence.
The complete liquor alumini chloridi of secondary reaction filters, and as above-mentioned, obtains high purity solid copper, and after being cleaned, jumbo bag packages spare.Liquor alumini chloridi after filtration pumps into slaking adjustment tank 6.
In slaking adjustment tank 6, by steam heating, the temperature of solution is elevated to 90 ~ 100 degrees Celsius, slowly add the liquid caustic soda as alkaline blender, can certainly be other alkaline materials, adjust the pH value of solution, control the pH value of solution to 2.0-3.0.Then stop heating, solution is pumped into underground storage tank, continue after slaking at underground storage tank, for example slaking two days, sampling detects.Carry out the detection of indices by GB22627-2008, detect and pump into finished product storage pond 7 after qualified and sell.Can not be up to standard as certain index wherein, return to reactor adjustment.
High purity solid copper in jumbo bag enters 200 object sieve apparatus, and the copper powder under sieve is transported to revolution roasting kiln 13 by rotary conveyor.Copper powder on sieve enters shredder 14 and grinds, screening again after grinding.
Copper powder enters to turn round roasting kiln 13, controls the speed and the temperature that add, output high-purity cupric oxide powder.Wherein controlling temperature is 800 ~ 950 degrees Celsius, adds speed to feed in raw material by the design production capacity of rotary kiln.
For, the acid waste gas that primary first-order equation, secondary reaction produce, can enter washing tower 17 washs, washing tower 17 combustion gas and washing soln, washing soln exports to and mixes reservoir 2 and cycles of washing pond 16, it is acid that cycles of washing pond 16 is, and alkaline blender take-off equipment 15 is exported alkaline blender and entered cycles of washing pond 16 and neutralize.
Finally obtain cupric oxide powder and the polymeric aluminum chlorides solution of finished product.
Aluminium flake and pump into once, the reaction of the etching solution of secondary reaction still, copper is cemented out by aluminium, aluminium enters in solution.
2Al+3Cu
2+=2Al
3++3
Copper powder enters after washing bath washing, sieves, then is transported to revolution roasting kiln, and under the high temperature more than 800 degree, oxidation generates cupric oxide.
2Cu+O
2=2CuO
Aluminium enters after solution, becomes liquor alumini chloridi.Whole technological process is controlled at below 80 ℃, and the hydrochloric acid reaction in aluminium flake and etching solution generates aluminum chloride and hydrogen, displaces high-purity copper powder afterwards with cupric ion.Aluminium enters solution and generates aluminum chloride.Liquor alumini chloridi adds liquid caustic soda to adjust the pH value in solution, because pH value increases, aluminium salt is hydrolyzed, make, between adjacent two hydroxyls, bridge formation polymerization occurs, because this effect has reduced the concentration of hydrolysate, thereby impel hydrolysis reaction to proceed, the polymer that its hydrolysis reaction is produced is combined with the Cl-as outer part, form polymerize aluminum chloride (PAC, molecular formula Al
2(OH)
ncl
6-n).The a small amount of aluminum oxide of surface of aluminum plate also can with hydrochloric acid reaction, generate aluminum chloride.The reaction formula of project technological process is:
3CuCl
2+2Al→3Cu+2AlCl
3
2Al+6HCl→2AlCl
3+3H
2↑
Al
2O
3+?2HCl→2AlCl
3+3H
2O
Al
3+3Cl
-+6H
2O=[Al(OH)
2(H
2O)
4]Cl+2HCl↑
Al
3+3Cl
-+6H
2O?=?Al(OH)
3+?HCl↑
(nm-4m)Al(OH)
3+(6m-nm)[Al(OH)
2(H
2O)
4]Cl?=[Al
2(OH)
nCl
6-n]
m+(24m-4nm)H
2O
The present invention adopts the copper in aluminium flake displacement acidic etching waste liquid, and the copper in waste liquid is cemented out with the form of high-purity copper powder, after the copper of aluminium displacement simultaneously, enters solution, makes acidic etching waste liquid change into liquor alumini chloridi; Liquor alumini chloridi carries out slaking and adjustment, becomes the polymeric aluminum chlorides solution of alumina content 8 ~ 10%, can sell.High-purity copper powder sieves with screen cloth, and the granularity under sieve is less than 200 object copper powders, is transported to revolution roasting kiln by rotary conveyor, becomes high-purity cupric oxide powder after oxidizing reaction; Screening again after screen overflow grinds.Whereby, both made the form output of copper with the high-purity cupric oxide powder of high added value, and made again waste water become product in the mode of polymerize aluminum chloride.Rinse water in whole production process can enter polymeric aluminum chlorides solution, does not have waste liquid to arrange outward, wastewater zero discharge.Existing good economic benefit, very environmental protection again, whole spent process water zero release.
As known by the technical knowledge, the present invention can realize by other the embodiment that does not depart from its spirit or essential feature.Therefore, above-mentioned disclosed embodiment, with regard to each side, all just illustrates, and is not only.Within the scope of the present invention all or be all included in the invention in the change being equal in scope of the present invention.
Claims (10)
1. a method of processing acidic etching waste liquid, is characterized in that, comprises the following steps:
Collect in acidic etching waste liquid to container for storing liquid;
In primary first-order equation still, hang aluminium flake, acidic etching waste liquid is pumped into and in primary first-order equation still, carries out primary first-order equation;
In secondary reaction still, hang aluminium flake, and filter primary first-order equation complete solution, obtain high purity solid copper and clean high purity solid copper, the solution after filtering is pumped into and in secondary reaction still, carries out secondary reaction;
Filter the complete liquor alumini chloridi of secondary reaction, obtain high purity solid copper and clean high purity solid copper;
Liquor alumini chloridi after filtration pumps into slaking adjustment tank, and adds thermomaturation adjustment tank, adds the pH value of alkaline neutraliser adjustment liquor alumini chloridi qualified to detecting;
Screening high purity solid copper, the copper powder under sieve is transported to the roasting of revolution roasting kiln, with output high-purity cupric oxide powder.
2. method according to claim 1, is characterized in that, in the acidic etching waste liquid of collection, the content of copper is 80 ~ 140g/l.
3. method according to claim 2, is characterized in that, in primary first-order equation still, every cube of reactor volume hangs 80 kilograms of aluminium flakes;
And, in the time carrying out primary first-order equation, first make the aluminium flake of acidic etching waste liquid contact basecoat, to react after 10 ~ 20 minutes, the aluminium flake reaction of basecoat is complete; Pump into again 1 ~ 2 cubic metre of acidic etching waste liquid, make the aluminium flake reaction of acidic etching waste liquid and last layer after 10 ~ 20 minutes; By that analogy, until the last one deck aluminium flake of acidic etching waste liquid submergence, after primary first-order equation, the cupric ion of controlling in the complete solution of primary first-order equation is reduced to 10 ~ 30g/l.
4. method according to claim 3, is characterized in that, in secondary reaction still, every cube of reactor volume hangs 20 kilograms of aluminium flakes; And, high purity solid copper is cleaned up for subsequent use;
The complete solution of primary first-order equation pumps into secondary reaction still together with cleaning the rinse water of high purity solid copper; It is the same that the process pumping into and acidic etching waste liquid pump into primary first-order equation still.
5. method according to claim 1, is characterized in that, in slaking adjustment tank, by steam heating, the temperature of liquor alumini chloridi is elevated to 90 ~ 100 degrees Celsius, slowly add alkaline material, adjust the pH value of liquor alumini chloridi, control pH value to 2.0 ~ 3.0 of liquor alumini chloridi; Then stop heating, liquor alumini chloridi is pumped into underground storage tank, continue slaking at underground storage tank, sampling detects, and detects after qualified and pumps into end product pool.
6. method according to claim 1, is characterized in that, when screening high purity solid copper, high purity solid copper is entered to 200 object sieve apparatus, copper powder under sieve is transported to the roasting of revolution roasting kiln by rotary conveyor, and the copper powder on sieve enters shredder and grinds, screening again after grinding.
7. method according to claim 6, is characterized in that, when copper powder enters to turn round roasting kiln roasting, controlling temperature is 800 ~ 950 degrees Celsius, adds speed to feed in raw material by the design production capacity of revolution roasting kiln.
8. method according to claim 1, is characterized in that, also comprises: acid waste gas to washing tower producing in output primary first-order equation, secondary reaction, and the solution producing after washing is mixed with acidic etching waste liquid.
9. method according to claim 1, is characterized in that, by the washing water that clean high purity solid copper with mix with acidic etching waste liquid.
10. an equipment of processing acidic etching waste liquid, is characterized in that, comprising:
Container for storing liquid, for storing acidic etching waste liquid;
Mix reservoir, be connected with the output interface of described container for storing liquid, for mixing multiple solution;
Primary first-order equation still, is connected with the described output interface that mixes container for storing liquid, for there is the primary first-order equation of acidic etching waste liquid and aluminium flake;
Secondary reaction still, is connected with the output interface of described primary first-order equation still, for there is the secondary reaction of solution and aluminium flake after primary first-order equation;
Strainer, is connected with the output interface of described primary first-order equation still, described secondary reaction still, for filtering the high purity solid copper after primary first-order equation, secondary reaction;
Rinse bath, is connected with an output interface of described strainer, for cleaning high purity solid copper, and an output interface of described rinse bath with described in mix reservoir and be connected to export the washing water that clean high purity solid copper;
High purity solid copper container, is connected with another output interface of described rinse bath, for storing high purity solid copper;
Sieve apparatus, is connected with the output interface of described high purity solid copper container, for sieving described high purity solid copper;
Revolution roasting kiln, is connected with the output interface of described sieve apparatus, for by sieve under the roasting of high purity solid copper be cupric oxide;
Slaking adjustment tank, is connected with another output interface of described strainer, for slaking and add alkaline neutraliser, adjust the liquor alumini chloridi filtering after high purity solid copper.
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| CN104818385A (en) * | 2015-04-10 | 2015-08-05 | 吴江市松陵镇氧化铜厂 | Energy-saving, environmental-protection and zero-discharge technology of acidic waste etching solution resource recycling treatment |
| CN106086460A (en) * | 2016-07-20 | 2016-11-09 | 中南大学 | A kind of from acid CuCl2the method reclaiming copper by-product polymerizing aluminum chloride in etching waste liquor |
| CN111001823A (en) * | 2019-12-31 | 2020-04-14 | 江西粤鹏环保高新技术开发有限公司 | Method and equipment for preparing nano-grade copper powder by using etching waste liquid and waste aluminum sheets |
| CN112093813A (en) * | 2020-08-11 | 2020-12-18 | 吉安共创机电工程有限公司 | System and method for treating high ammonia nitrogen acidic etching waste liquid |
| CN114314627A (en) * | 2021-12-30 | 2022-04-12 | 韶关绿鑫环保技术有限公司 | Water purifying agent and production process thereof |
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| CN106086460A (en) * | 2016-07-20 | 2016-11-09 | 中南大学 | A kind of from acid CuCl2the method reclaiming copper by-product polymerizing aluminum chloride in etching waste liquor |
| CN111001823A (en) * | 2019-12-31 | 2020-04-14 | 江西粤鹏环保高新技术开发有限公司 | Method and equipment for preparing nano-grade copper powder by using etching waste liquid and waste aluminum sheets |
| CN112093813A (en) * | 2020-08-11 | 2020-12-18 | 吉安共创机电工程有限公司 | System and method for treating high ammonia nitrogen acidic etching waste liquid |
| CN112093813B (en) * | 2020-08-11 | 2023-05-02 | 吉安共创机电工程有限公司 | System and method for treating high ammonia nitrogen acid etching waste liquid |
| CN114314627A (en) * | 2021-12-30 | 2022-04-12 | 韶关绿鑫环保技术有限公司 | Water purifying agent and production process thereof |
| CN114317980A (en) * | 2021-12-30 | 2022-04-12 | 韶关绿鑫环保技术有限公司 | Sponge copper and production process thereof |
| CN114959732A (en) * | 2022-06-15 | 2022-08-30 | 昆明理工大学 | Preparation method and purification process of copper hydroxide |
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Application publication date: 20140514 |