CN105132698A - Technology for extracting aluminum and zinc from high-aluminum zinciferous aluminum-zinc residues - Google Patents

Technology for extracting aluminum and zinc from high-aluminum zinciferous aluminum-zinc residues Download PDF

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CN105132698A
CN105132698A CN201510620694.3A CN201510620694A CN105132698A CN 105132698 A CN105132698 A CN 105132698A CN 201510620694 A CN201510620694 A CN 201510620694A CN 105132698 A CN105132698 A CN 105132698A
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zinc
aluminum
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aluminium
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陈毅忠
张帆
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Changzhou Ao Putaike Photoelectric Co Ltd
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Abstract

The invention discloses a technology for extracting aluminum and zinc from high-aluminum zinciferous aluminum-zinc residues, and belongs to the technical field of treatment of metallurgical waste residues. The technology comprises the following steps: using aluminiferous zinciferous waste residues as a raw material; firstly performing airflow smashing on the raw material, and screening the raw material on which airflow smashing is performed so as to obtain waste residues; then adding sulphuric acid, acetone and an oxidizing agent into the waste residues so as to enable aluminum and zinc in the waste residues to be oxidized; then putting the oxidized waste residues into a Buchner funnel to perform sucking filtration, and separating the filtered waste residues so as to obtain sucking filtration liquid; dropwise adding a sodium hydroxide solution into the sucking filtration liquid, and after sediment occurs, putting the sediment into a muffle furnace to perform high-temperature calcination so as to obtain aluminum oxide powder and zinc oxide powder; and finally performing electrolysis on the aluminum oxide powder and zinc oxide powder by using carbon blocks as a cathode and an anode so as to obtain pure aluminum and pure zinc. The technology disclosed by the embodiment of the invention proves that through the adoption of the technology, the aluminum and the zinc in the aluminum-zinc residues can be effectively separated, the extraction rate is as high as more than 88%, the cost is low in the separation process, and any environmental pollution is not generated.

Description

A kind of from high alumina containing the technique extracting aluminium zinc zinc-aluminium cadmia
Technical field
The invention discloses a kind of from high alumina containing the technique extracting aluminium zinc zinc-aluminium cadmia, belong to metallurgical slag processing technology field.
Background technology
High alumina refers to metallurgical slag in fact containing zinc-aluminium cadmia.Metallurgical slag refers in metallurgical industry production process the various solid waste produced.Mainly refer to produce in iron-smelting furnace blast furnace slag, slag, non-ferrous metal metallurgy produce various non-ferrous metal slags, as slag, lead skim, cadmia, nickel slag etc.; And the small amounts scum produced from the red mud and rolling process of the discharge of bauxite refinement aluminum oxide.China as far back as 1940's just and feel to solve the metallurgical urgency polluting " slag evil ", substantially often refine 1t scum and discharge 0.3 ~ 0.5t slag, often refine 1t aluminum oxide and discharge 0.6 ~ 1.8t red mud, often refine 1t zinc oxide and discharge 0.5 ~ 1.2t cadmia.What mainly tell about in the present invention is aluminium slag and cadmia, in the past, people abandon aluminium zinc waste residue, this measure not only causes aluminium, zinc resource to waste also can bring environmental problem, therefore, find cost-effective method and be used and smelting reason waste residue, not only can improve the economic benefit of aluminium, zinc industry, while the Efficient Cycle realizing resource utilizes, also, social Sustainable development economical on realization are produced important impact.
At present for waste residue extraction process conventional be coldly abandon method, hot application process for crushing stones and water quenching technology.Wherein the cold method of abandoning refers to and pours waste residue into slag ladle, directly transport slag field heap slagging mountain, in the past China's this method multiplex to, but this method has inevitable pollution for environment after its slow cooling; The hot application process for crushing stones of next is poured on slag-bed with crane by bold and vigorous for the liquid state waste slag layering in slag ladle, and make its chilling cracked with water spray, then transport slag field again to, but the method cost compare is high, extraction yield is lower simultaneously; Last water quenching technology refers to the high-temperature liquid furnace slag that will discharge, and is smashed by pressure water cutting, meet water quick cooling in addition and shrink and break, be granulated in water curtain, but the method is also that to there is cost high, the shortcoming that extraction yield is low.In addition, various waste residue has different extracting modes, and what wherein aluminium, cadmia were commonly used at present is acid leaching residue method, but under acidleach condition at the same time, aluminium, zinc can be leached simultaneously, cannot extract respectively, then add alkali, under the condition of alkalescence, then precipitation can be produced again, when base excess, precipitation again can by this general character of dissolving, and causing cannot aluminium, zinc efficiently in separating waste residues.
Summary of the invention
The technical problem that the present invention mainly solves: in lower and leaching process, cost is high for ubiquity extraction yield in current waste residue extraction process, pollution problem can be produced for environment, and in aluminium cadmia, extract aluminium, often pickling process is adopted in the process of zinc, but under the condition of acidleach at the same time, aluminium, zinc can be leached simultaneously, cannot extract respectively, as added alkali again, under the condition of alkalescence, then precipitation can be produced again, when base excess, precipitation again can by this general character of dissolving, causing cannot aluminium efficiently in separating waste residues, the drawback of zinc, provide a kind of from high alumina containing the technique extracting aluminium zinc zinc-aluminium cadmia, the method is to contain aluminium zinc waste residue for raw material, advanced row comminution by gas stream, sieve to obtain waste residue, add the aluminium that sulfuric acid and acetone and oxygenant make wherein afterwards, zinc is oxidized, and then the waste residue after oxidation is put into cloth funnel and carried out suction filtration, separation obtains suction filtration liquid, precipitation is there is subsequently to dripping sodium hydroxide solution in suction filtration liquid, precipitation is put into retort furnace high-temperature calcination, obtain aluminum oxide and Zinc oxide powder, finally by carbon block as negative and positive two-stage, carry out electrolysis, thus obtain fine aluminium, pure zinc.The method not only can make aluminium zinc in aluminium cadmia effectively be separated, and extraction yield is up to more than 88%, and in sepn process, cost is low, can not produce any environmental pollution.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:
(1) get a certain amount of containing aluminium zinc waste residue, put into micronizer mill and pulverize, cross 130 ~ 150 mesh sieves afterwards, obtain waste residue powder;
(2) count by weight, get 20 ~ 25 parts of above-mentioned obtained waste residue powder, 30 ~ 50 parts of clear water put into container, stir, re-use the sulphuric acid soln that mass concentration is 17%, stop when liquid pH value to be mixed is 1 ~ 2 adding sulphuric acid soln, and stirring heating heats up, speed setting is 200 ~ 300r/min, heat-up rate is 4 DEG C/min, treat that temperature rises to 50 ~ 60 DEG C, insulation reaction 10 ~ 15min, add 15 ~ 25 parts of hydrochloric acid simultaneously, 2 ~ 6 parts of acetone and 4 ~ 7 parts of oxygenants, described oxygenant is 40% hydrogen peroxide by Potassium Persulphate and mass concentration, be to mix at 2: 5 according to solid-to-liquid ratio, continue heating schedule afterwards to heat up, raising rotating speed is 250 ~ 280r/min, heat-up rate is 5 DEG C/min, treat that temperature rises to 105 ~ 110 DEG C, stop heating up, and abundant stirring reaction 2 ~ 3h, keep pH value between 1.5 ~ 2.5,
(3) by mass concentration be 30% Sodium Persulfate solution, regulate pH to 2.8 ~ 3.2 of solution after above-mentioned stirring, after stirring with glass cylinder, leave standstill 2 ~ 3h, make its slaking, solution is moved in cloth funnel carry out suction filtration afterwards, be separated removal precipitation and obtain suction filtration liquid;
(4) in suction filtration liquid obtained above, adding mass concentration is 20% ammoniacal liquor, regulate pH to 3.5 ~ 4.5, continuing afterwards to drip mass concentration is the sodium hydroxide solution of 15%, make it produce white precipitate, until when white precipitate no longer increases, stop sodium hydroxide solution dripping, moved into afterwards in horizontal centrifuge, carry out centrifugal treating with the rotating speed of 8000 ~ 9000r/min, separation of supernatant is precipitated thing, and supernatant liquor is for subsequent use;
(5) throw out obtained above is put into retort furnace, to calcine 1 ~ 2h under the high temperature of 700 ~ 800 DEG C, obtain Zinc oxide powder;
(6) continue to add sulfuric acid in the supernatant liquor obtained to above-mentioned separation, regulate below its pH to 1, now adding mass concentration is 20% ammoniacal liquor, regulates pH to 2 ~ 3, and continuing afterwards to drip mass concentration is the sodium hydroxide solution of 15%, it is made to produce white precipitate, until when white precipitate no longer increases, stop sodium hydroxide solution dripping, filter afterwards and be precipitated, throw out is moved in retort furnace with under the high temperature of 750 ~ 850 DEG C calcine 1.5 ~ 2.5h, obtain alumina powder.
Application method of the present invention is: zinc oxide the present invention obtained, alumina powder are dissolved in liquid sodium aluminum fluoride at 1000 ~ 1100 DEG C, become the molten mass of sodium aluminum fluoride and zinc oxide and the molten mass of sodium aluminum fluoride and aluminum oxide, afterwards in a cell, with carbon block as negative and positive two-stage, carry out electrolysis, thus obtain fine aluminium, pure zinc.Not only in operating process, cost compare is low, and produce without any environmental pollution, and aluminium zinc in aluminium cadmia can be made effectively to be separated, extraction yield is up to more than 88%.
The invention has the beneficial effects as follows:
(1) the present invention can make aluminium zinc in aluminium cadmia effectively be separated, and extraction yield is up to more than 88%;
(2) in the sepn process of aluminium zinc, cost compare is low, can not produce any environmental pollution in addition.
Embodiment
First get a certain amount of containing aluminium zinc waste residue, put into micronizer mill and pulverize, cross 130 ~ 150 mesh sieves afterwards, obtain waste residue powder, then count by weight, get 20 ~ 25 parts of above-mentioned obtained waste residue powder, 30 ~ 50 parts of clear water put into container, stir, re-use the sulphuric acid soln that mass concentration is 17%, stop when liquid pH value to be mixed is 1 ~ 2 adding sulphuric acid soln, and stirring heating heats up, speed setting is 200 ~ 300r/min, heat-up rate is 4 DEG C/min, treat that temperature rises to 50 ~ 60 DEG C, insulation reaction 10 ~ 15min, add 15 ~ 25 parts of hydrochloric acid simultaneously, 2 ~ 6 parts of acetone and 4 ~ 7 parts of oxygenants, described oxygenant is 40% hydrogen peroxide by Potassium Persulphate and mass concentration, be to mix at 2: 5 according to solid-to-liquid ratio, continue heating schedule afterwards to heat up, raising rotating speed is 250 ~ 280r/min, heat-up rate is 5 DEG C/min, treat that temperature rises to 105 ~ 110 DEG C, stop heating up, and abundant stirring reaction 2 ~ 3h, keep pH value between 1.5 ~ 2.5, be the Sodium Persulfate solution of 30% afterwards by mass concentration, regulate pH to 2.8 ~ 3.2 of solution after above-mentioned stirring, after stirring with glass cylinder, leave standstill 2 ~ 3h, make its slaking, solution is moved in cloth funnel carry out suction filtration afterwards, be separated removal precipitation and obtain suction filtration liquid, be 20% ammoniacal liquor subsequently to adding mass concentration in suction filtration liquid obtained above, regulate pH to 3.5 ~ 4.5, continuing afterwards to drip mass concentration is the sodium hydroxide solution of 15%, make it produce white precipitate, until when white precipitate no longer increases, stop sodium hydroxide solution dripping, moved into afterwards in horizontal centrifuge, carry out centrifugal treating with the rotating speed of 8000 ~ 9000r/min, separation of supernatant is precipitated thing, and supernatant liquor is for subsequent use, next throw out obtained above is put into retort furnace, to calcine 1 ~ 2h under the high temperature of 700 ~ 800 DEG C, obtain Zinc oxide powder, then continue to add sulfuric acid in the supernatant liquor obtained to above-mentioned separation, regulate below its pH to 1, now adding mass concentration is 20% ammoniacal liquor, regulates pH to 2 ~ 3, and continuing afterwards to drip mass concentration is the sodium hydroxide solution of 15%, it is made to produce white precipitate, until when white precipitate no longer increases, stop sodium hydroxide solution dripping, filter afterwards and be precipitated, throw out is moved in retort furnace with under the high temperature of 750 ~ 850 DEG C calcine 1.5 ~ 2.5h, obtain alumina powder, above-mentioned obtained zinc oxide, alumina powder is finally made to be dissolved in liquid sodium aluminum fluoride at 1000 ~ 1100 DEG C respectively, become the molten mass of sodium aluminum fluoride and zinc oxide and the molten mass of sodium aluminum fluoride and aluminum oxide, afterwards in a cell, with carbon block as negative and positive two-stage, carry out electrolysis, thus obtain fine aluminium, pure zinc.
Example 1
First get a certain amount of containing aluminium zinc waste residue, put into micronizer mill and pulverize, cross 130 mesh sieves afterwards, obtain waste residue powder, then count by weight, get 20 parts of above-mentioned obtained waste residue powder, 30 parts of clear water put into container, stir, re-use the sulphuric acid soln that mass concentration is 17%, stop when liquid pH value to be mixed is 1 adding sulphuric acid soln, and stirring heating heats up, speed setting is 200r/min, heat-up rate is 4 DEG C/min, treat that temperature rises to 50 DEG C, insulation reaction 10min, add 15 parts of hydrochloric acid simultaneously, 2 parts of acetone and 4 parts of oxygenants, described oxygenant is 40% hydrogen peroxide by 200g Potassium Persulphate and 500mL mass concentration, mix, continue heating schedule afterwards to heat up, raising rotating speed is 250r/min, heat-up rate is 5 DEG C/min, treat that temperature rises to 105 DEG C, stop heating up, and abundant stirring reaction 2h, keep pH value between 1.5, be the Sodium Persulfate solution of 30% afterwards by mass concentration, regulate the pH to 2.8 of solution after above-mentioned stirring, after stirring with glass cylinder, leave standstill 2h, make its slaking, solution is moved in cloth funnel carry out suction filtration afterwards, be separated and remove precipitation and obtain suction filtration liquid, be 20% ammoniacal liquor subsequently to adding mass concentration in suction filtration liquid obtained above, regulate pH to 3.5, continuing afterwards to drip mass concentration is the sodium hydroxide solution of 15%, make it produce white precipitate, until when white precipitate no longer increases, stop sodium hydroxide solution dripping, moved into afterwards in horizontal centrifuge, carry out centrifugal treating with the rotating speed of 8000r/min, separation of supernatant is precipitated thing, and supernatant liquor is for subsequent use, next throw out obtained above is put into retort furnace, to calcine 1h under the high temperature of 700 DEG C, obtain Zinc oxide powder, then continue to add sulfuric acid in the supernatant liquor obtained to above-mentioned separation, regulate below its pH to 1, now adding mass concentration is 20% ammoniacal liquor, regulates pH to 2, and continuing afterwards to drip mass concentration is the sodium hydroxide solution of 15%, it is made to produce white precipitate, until when white precipitate no longer increases, stop sodium hydroxide solution dripping, filter afterwards and be precipitated, throw out to be moved in retort furnace to calcine 1.5h under the high temperature of 750 DEG C, obtain alumina powder, above-mentioned obtained zinc oxide, alumina powder is finally made to be dissolved in liquid sodium aluminum fluoride at 1000 DEG C respectively, become the molten mass of sodium aluminum fluoride and zinc oxide and the molten mass of sodium aluminum fluoride and aluminum oxide, afterwards in a cell, with carbon block as negative and positive two-stage, carry out electrolysis, thus obtain fine aluminium, pure zinc.
This example operation is simple, and method is unique novel, and not only in operating process, cost compare is low, and produce without any environmental pollution, and aluminium zinc in aluminium cadmia can be made effectively to be separated, extraction yield is up to 88%.
Example 2
First get a certain amount of containing aluminium zinc waste residue, put into micronizer mill and pulverize, cross 140 mesh sieves afterwards, obtain waste residue powder, then count by weight, get 23 parts of above-mentioned obtained waste residue powder, 40 parts of clear water put into container, stir, re-use the sulphuric acid soln that mass concentration is 17%, stop when liquid pH value to be mixed is 1.5 adding sulphuric acid soln, and stirring heating heats up, speed setting is 250r/min, heat-up rate is 4 DEG C/min, treat that temperature rises to 55 DEG C, insulation reaction 13min, add 20 parts of hydrochloric acid simultaneously, 4 parts of acetone and 6 parts of oxygenants, described oxygenant is 40% hydrogen peroxide by 300g Potassium Persulphate and 750mL mass concentration, mix, continue heating schedule afterwards to heat up, raising rotating speed is 270r/min, heat-up rate is 5 DEG C/min, treat that temperature rises to 107 DEG C, stop heating up, and abundant stirring reaction 2.5h, keep pH value between 2.2, be the Sodium Persulfate solution of 30% afterwards by mass concentration, regulate the pH to 3.0 of solution after above-mentioned stirring, after stirring with glass cylinder, leave standstill 2.5h, make its slaking, solution is moved in cloth funnel carry out suction filtration afterwards, be separated removal precipitation and obtain suction filtration liquid, be 20% ammoniacal liquor subsequently to adding mass concentration in suction filtration liquid obtained above, regulate pH to 4.2, continuing afterwards to drip mass concentration is the sodium hydroxide solution of 15%, make it produce white precipitate, until when white precipitate no longer increases, stop sodium hydroxide solution dripping, moved into afterwards in horizontal centrifuge, carry out centrifugal treating with the rotating speed of 8500r/min, separation of supernatant is precipitated thing, and supernatant liquor is for subsequent use, next throw out obtained above is put into retort furnace, to calcine 1.5h under the high temperature of 750 DEG C, obtain Zinc oxide powder, then continue to add sulfuric acid in the supernatant liquor obtained to above-mentioned separation, regulate below its pH to 1, now adding mass concentration is 20% ammoniacal liquor, regulates pH to 2.5, and continuing afterwards to drip mass concentration is the sodium hydroxide solution of 15%, it is made to produce white precipitate, until when white precipitate no longer increases, stop sodium hydroxide solution dripping, filter afterwards and be precipitated, throw out to be moved in retort furnace to calcine 2.2h under the high temperature of 800 DEG C, obtain alumina powder, above-mentioned obtained zinc oxide, alumina powder is finally made to be dissolved in liquid sodium aluminum fluoride at 1050 DEG C respectively, become the molten mass of sodium aluminum fluoride and zinc oxide and the molten mass of sodium aluminum fluoride and aluminum oxide, afterwards in a cell, with carbon block as negative and positive two-stage, carry out electrolysis, thus obtain fine aluminium, pure zinc.
This example operation is simple, and method is unique novel, and not only in operating process, cost compare is low, and produce without any environmental pollution, and aluminium zinc in aluminium cadmia can be made effectively to be separated, extraction yield is up to 90%.
Example 3
First get a certain amount of containing aluminium zinc waste residue, put into micronizer mill and pulverize, cross 150 mesh sieves afterwards, obtain waste residue powder, then count by weight, get 25 parts of above-mentioned obtained waste residue powder, 50 parts of clear water put into container, stir, re-use the sulphuric acid soln that mass concentration is 17%, stop when liquid pH value to be mixed is 2 adding sulphuric acid soln, and stirring heating heats up, speed setting is 300r/min, heat-up rate is 4 DEG C/min, treat that temperature rises to 60 DEG C, insulation reaction 15min, add 25 parts of hydrochloric acid simultaneously, 6 parts of acetone and 7 parts of oxygenants, described oxygenant is 40% hydrogen peroxide by 400g Potassium Persulphate and 1000mL mass concentration, mix, continue heating schedule afterwards to heat up, raising rotating speed is 280r/min, heat-up rate is 5 DEG C/min, treat that temperature rises to 110 DEG C, stop heating up, and abundant stirring reaction 3h, keep pH value between 2.5, be the Sodium Persulfate solution of 30% afterwards by mass concentration, regulate the pH to 3.2 of solution after above-mentioned stirring, after stirring with glass cylinder, leave standstill 3h, make its slaking, solution is moved in cloth funnel carry out suction filtration afterwards, be separated and remove precipitation and obtain suction filtration liquid, be 20% ammoniacal liquor subsequently to adding mass concentration in suction filtration liquid obtained above, regulate pH to 4.5, continuing afterwards to drip mass concentration is the sodium hydroxide solution of 15%, make it produce white precipitate, until when white precipitate no longer increases, stop sodium hydroxide solution dripping, moved into afterwards in horizontal centrifuge, carry out centrifugal treating with the rotating speed of 9000r/min, separation of supernatant is precipitated thing, and supernatant liquor is for subsequent use, next throw out obtained above is put into retort furnace, to calcine 2h under the high temperature of 800 DEG C, obtain Zinc oxide powder, then continue to add sulfuric acid in the supernatant liquor obtained to above-mentioned separation, regulate below its pH to 1, now adding mass concentration is 20% ammoniacal liquor, regulates pH to 3, and continuing afterwards to drip mass concentration is the sodium hydroxide solution of 15%, it is made to produce white precipitate, until when white precipitate no longer increases, stop sodium hydroxide solution dripping, filter afterwards and be precipitated, throw out to be moved in retort furnace to calcine 2.5h under the high temperature of 850 DEG C, obtain alumina powder, above-mentioned obtained zinc oxide, alumina powder is finally made to be dissolved in liquid sodium aluminum fluoride at 1100 DEG C respectively, become the molten mass of sodium aluminum fluoride and zinc oxide and the molten mass of sodium aluminum fluoride and aluminum oxide, afterwards in a cell, with carbon block as negative and positive two-stage, carry out electrolysis, thus obtain fine aluminium, pure zinc.
This example operation is simple, and method is unique novel, and not only in operating process, cost compare is low, and produce without any environmental pollution, and aluminium zinc in aluminium cadmia can be made effectively to be separated, extraction yield is up to 92%.

Claims (1)

1. contain from high alumina the technique extracting aluminium zinc zinc-aluminium cadmia, it is characterized in that concrete operation step is:
(1) get a certain amount of containing aluminium zinc waste residue, put into micronizer mill and pulverize, cross 130 ~ 150 mesh sieves afterwards, obtain waste residue powder;
(2) count by weight, get 20 ~ 25 parts of above-mentioned obtained waste residue powder, 30 ~ 50 parts of clear water put into container, stir, re-use the sulphuric acid soln that mass concentration is 17%, stop when liquid pH value to be mixed is 1 ~ 2 adding sulphuric acid soln, and stirring heating heats up, speed setting is 200 ~ 300r/min, heat-up rate is 4 DEG C/min, treat that temperature rises to 50 ~ 60 DEG C, insulation reaction 10 ~ 15min, add 15 ~ 25 parts of hydrochloric acid simultaneously, 2 ~ 6 parts of acetone and 4 ~ 7 parts of oxygenants, described oxygenant is 40% hydrogen peroxide by Potassium Persulphate and mass concentration, be to mix at 2: 5 according to solid-to-liquid ratio, continue heating schedule afterwards to heat up, raising rotating speed is 250 ~ 280r/min, heat-up rate is 5 DEG C/min, treat that temperature rises to 105 ~ 110 DEG C, stop heating up, and abundant stirring reaction 2 ~ 3h, keep pH value between 1.5 ~ 2.5,
(3) by mass concentration be 30% Sodium Persulfate solution, regulate pH to 2.8 ~ 3.2 of solution after above-mentioned stirring, after stirring with glass cylinder, leave standstill 2 ~ 3h, make its slaking, solution is moved in cloth funnel carry out suction filtration afterwards, be separated removal precipitation and obtain suction filtration liquid;
(4) in suction filtration liquid obtained above, adding mass concentration is 20% ammoniacal liquor, regulate pH to 3.5 ~ 4.5, continuing afterwards to drip mass concentration is the sodium hydroxide solution of 15%, make it produce white precipitate, until when white precipitate no longer increases, stop sodium hydroxide solution dripping, moved into afterwards in horizontal centrifuge, carry out centrifugal treating with the rotating speed of 8000 ~ 9000r/min, separation of supernatant is precipitated thing, and supernatant liquor is for subsequent use;
(5) throw out obtained above is put into retort furnace, to calcine 1 ~ 2h under the high temperature of 700 ~ 800 DEG C, obtain Zinc oxide powder;
(6) continue to add sulfuric acid in the supernatant liquor obtained to above-mentioned separation, regulate below its pH to 1, now adding mass concentration is 20% ammoniacal liquor, regulates pH to 2 ~ 3, and continuing afterwards to drip mass concentration is the sodium hydroxide solution of 15%, it is made to produce white precipitate, until when white precipitate no longer increases, stop sodium hydroxide solution dripping, filter afterwards and be precipitated, throw out is moved in retort furnace with under the high temperature of 750 ~ 850 DEG C calcine 1.5 ~ 2.5h, obtain alumina powder;
(7) above-mentioned obtained zinc oxide, alumina powder is made to be dissolved in liquid sodium aluminum fluoride at 1000 ~ 1100 DEG C respectively, become the molten mass of sodium aluminum fluoride and zinc oxide and the molten mass of sodium aluminum fluoride and aluminum oxide, afterwards in a cell, with carbon block as negative and positive two-stage, carry out electrolysis, thus obtain fine aluminium, pure zinc.
CN201510620694.3A 2015-09-27 2015-09-27 Technology for extracting aluminum and zinc from high-aluminum zinciferous aluminum-zinc residues Pending CN105132698A (en)

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CN107555469A (en) * 2017-08-26 2018-01-09 麻江县金泰工业废渣综合利用回收有限责任公司 A kind of technique for preparing zinc sulfate combined producting ammonium chloride with high chlorine cadmia
US10407787B2 (en) 2013-09-25 2019-09-10 Himonic Llc Method and apparatus for separation of aluminum from aluminum-containing source materials
CN112349508A (en) * 2020-12-08 2021-02-09 安徽泰龙锌业有限责任公司 Method for preparing magnetic material by using zinc-containing waste material
CN113198607A (en) * 2021-04-28 2021-08-03 河南省煜晟镍业有限责任公司 Low nickel matte comprehensive treatment method

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10407787B2 (en) 2013-09-25 2019-09-10 Himonic Llc Method and apparatus for separation of aluminum from aluminum-containing source materials
WO2017029651A1 (en) * 2015-08-18 2017-02-23 Himonic Llc Method and apparatus for separation of aluminum from aluminum-containing source materials
CN107555469A (en) * 2017-08-26 2018-01-09 麻江县金泰工业废渣综合利用回收有限责任公司 A kind of technique for preparing zinc sulfate combined producting ammonium chloride with high chlorine cadmia
CN112349508A (en) * 2020-12-08 2021-02-09 安徽泰龙锌业有限责任公司 Method for preparing magnetic material by using zinc-containing waste material
CN112349508B (en) * 2020-12-08 2022-05-03 安徽泰龙锌业有限责任公司 Method for preparing magnetic material by using zinc-containing waste material
CN113198607A (en) * 2021-04-28 2021-08-03 河南省煜晟镍业有限责任公司 Low nickel matte comprehensive treatment method

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Application publication date: 20151209