CN109055766A - A kind of separation and recovery method of nickel plated copper wire - Google Patents
A kind of separation and recovery method of nickel plated copper wire Download PDFInfo
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- CN109055766A CN109055766A CN201811186489.0A CN201811186489A CN109055766A CN 109055766 A CN109055766 A CN 109055766A CN 201811186489 A CN201811186489 A CN 201811186489A CN 109055766 A CN109055766 A CN 109055766A
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- nickel
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/001—Dry processes
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B15/00—Obtaining copper
- C22B15/0002—Preliminary treatment
- C22B15/0004—Preliminary treatment without modification of the copper constituent
- C22B15/0006—Preliminary treatment without modification of the copper constituent by dry processes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B15/00—Obtaining copper
- C22B15/0063—Hydrometallurgy
- C22B15/0065—Leaching or slurrying
- C22B15/0067—Leaching or slurrying with acids or salts thereof
- C22B15/0069—Leaching or slurrying with acids or salts thereof containing halogen
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B23/00—Obtaining nickel or cobalt
- C22B23/04—Obtaining nickel or cobalt by wet processes
- C22B23/0407—Leaching processes
- C22B23/0415—Leaching processes with acids or salt solutions except ammonium salts solutions
- C22B23/0423—Halogenated acids or salts thereof
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/006—Wet processes
- C22B7/007—Wet processes by acid leaching
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention provides a kind of separation and recovery methods of nickel plated copper wire, first separate the plastic peel on cupro-nickel copper wire surface layer, and plastic peel is placed in vacuum pyrolysis reaction unit and is pyrolyzed；Then the nickel plated copper wire for stripping plastic peel is sheared using copper rice machine and is converted into nickel-clad copper rice；By obtained nickel-clad copper rice and steel ball, Medium Oil, mixing and ball milling is handled according to a certain percentage, using alcohol washes, screening, obtains nickel removal copper rice and nickel, copper powder mixture；It will be reacted in nickel, copper powder mixture merging dilute hydrochloric acid, nickel chloride solution and copper powder be obtained by filtration.The present invention pointedly carries out separation and recovery processing, entire removal process cleanliness without any pollution, rate of recovery height according to the plastic peel of nickel plated copper wire, the physicochemical characteristics of copper and mickel.
Description
Technical field:
The invention belongs to secondary resource recycling fields, and in particular to a kind of separation and recovery method of nickel plated copper wire.
Technical background:
Very thin copper wire is easier to damage because oxidation corrosion occurs, and is 0.015 inch (0.38mm) and below by diameter
The conductor that single line is twisted is aoxidized using nickel-clad copper single line to prevent copper single wire surface.
Nickel plated copper wire refers to the wire rod for plating one layer of nickel on copper by electrolysis or chemical method.Nowadays the purposes of copper wire
More and more extensive, nickel plated copper wire effect is that part is made to have excellent corrosion resistance, wearability, solderability and high rigidity etc. excellent
Point meets the requirement of part, improves the service life of part.
With the development of power communication cause, thus nickel plated copper wire leads to the nickel plated copper wire that largely gives up using more and more
It needs to be recycled.At present for the recycling of nickel plated copper wire, mainly electrolysis method, the acid-hatching of young eggs and pyrogenic process.Electrolysis method and the acid-hatching of young eggs
It requires to expend a large amount of reagents, needs to handle a large amount of acidic chemical waste liquid；Pyrogenic process is separated under high melt, this
Method is difficult to realize efficiently separating for copper and mickel, and the cost of recycling is very high.Chinese invention patent discloses a kind of nickel and copper tin alloy
The processing method (application number 201410448208.X) of waste material carries out heating to nickel and copper tin alloy waste material and reaches molten
State；It is passed through vulcanizing agent into the nickel and copper tin alloy waste material for reaching molten condition, obtains tin through sulfide tin reaction；At through detin
Molten condition waste material after reason carries out electrolysis and obtains copper；To through decopper(ing), treated that molten condition waste material carries out that electrolysis obtains nickel.
Chinese invention patent disclose it is a kind of from ferronickel copper alloy scrap recycle copper, nickel method (application number:
201310455464.7), iron removal by oxidation first: ferronickel copper alloy scrap is heated up to obtain molten state ferronickel copper alloy scrap, so
Slag former is added afterwards and sprays into oxidizing gas, obtains molten metal and slag；Then one section of electrorefining recycles copper: above-mentioned steps are obtained
To molten metal be cast into soluble anode, then by this soluble anode plate be anode, stainless steel plate is cathode, and copper sulphate is
Copper can be prepared in electrolyte on cathode after electrolysis；The second last section electrorefining recycles nickel: above-mentioned steps are electrolysed essence
The electrolyte heating of refining is sun with insoluble titanium plate except the electrolyte sent after iron and copper removal to electrolytic nickel cell as recycling nickel
Pole, stainless steel plate are cathode, and nickel can be prepared after electrolysis on cathode.From the above it is found that most of recycling cupro-nickel
Using processing modes such as high melt, electrolysis, energy consumption is high, and recovery process is long, and cost recovery is high, and secondary pollution hidden danger is big.
It is necessary to develop the recovery method of nickel plated copper wire, the use using a large amount of chemical reagent is reduced, simplifies recycling stream
Journey, the present invention carry out physical separation to nickel plated copper wire, realize the pure separation of cupro-nickel.
Summary of the invention:
Technical problem to be solved by the invention is to provide a kind of separation and recovery methods of nickel plated copper wire, realize copper wire and nickel
Coating efficiently separating and recycling.
A kind of separation and recovery method of nickel plated copper wire of the present invention, is realized by following steps:
1) nickel plated copper wire, is sent into wire stripper, the plastic peel on cupro-nickel copper wire surface layer is separated, and plastic peel is placed in
It is pyrolyzed in vacuum pyrolysis reaction unit, obtains pyrolysis oil；
2) shear treatment, is carried out to the nickel plated copper wire for stripping plastic peel using copper rice machine, obtains the plating that length is 1-3cm
Ambrose alloy rice；
3) it after, mixing the nickel-clad copper rice that step 1) obtains according to a certain percentage with steel ball, Medium Oil, is added together vertical
In agitating ball mill, ball-milling treatment 20-40min, the nickel coating and a small amount of copper on nickel-clad copper rice surface layer is peeled off；It will be in ball mill
Material take out, using alcohol washes, screening, obtain nickel removal copper rice and nickel, copper powder mixture；
4) it, by nickel, copper powder mixture merging dilute hydrochloric acid, being stirred to react for 24 hours, nickel is reacted with dilute hydrochloric acid generates nickel chloride,
Copper has neither part nor lot in reaction；Nickel chloride solution and copper powder is obtained by filtration.
In the method for the invention, the diameter of the nickel-clad copper rice is 2-5mm.
In the method for the invention, in the step 1), plastic peel vacuum pyrolysis temperature is 350 DEG C, and reaction pressure is
2KPa。
In the method for the invention, in the step 3), the diameter of the steel ball is 30mm, the nickel-clad copper rice and steel
Ball, Medium Oil mass ratio be 1.2:1:0.05.
In the method for the invention, in the step 3), the revolving speed of the agitated ball mill is 200-300r/min.
In the method for the invention, the Medium Oil is one of paraffin oil, silicone oil.
In the method for the invention, in the step 4), the hydrochloric acid is the weak solution of 0.5mol/L.
Technical principle of the invention:
Nickel plated copper wire is carried out to wire stripping and copper rice processed processing first, vacuum pyrolysis separation is carried out after plastic peel is peeled off,
Since plastic peel contains the various ingredients such as fire retardant, it is difficult directly to carry out regeneration recycling, the present invention is produced using vacuum pyrolysis
Pyrolysis oil, as industrial fuel application；To nickel-clad copper rice, the present invention by the way of physics ball milling, to the nickel coating on surface layer into
Row separation under the continuous friction of steel ball, can scrape since copper rice surface layer is one layer of very thin electronickelling and fall and form powder
Body, in the process, the different parts of the frequency and collision probability and copper rice surface layer hit due to steel ball have difference, lead to copper rice
It is inevitable that there is a phenomenon where excessively scraping, the present invention effectively to avoid this problem, Medium Oil by the way of Medium Oil is added
Addition not only can play a buffer role in, so that surface layer is not received excessive friction excessive copper is caused to scrape and mixed with nickel powder, and
It avoiding since the fever of metal ball milling causes metal to aoxidize in mechanical milling process, the subsequent recovery for being unfavorable for nickel removal copper rice utilizes,
Also it is unfavorable for the recycling of subsequent copper nickel powder body.
Recycling for cupro-nickel powder, the present invention are separated copper and mickel by the way of diluted hydrochloric acid dissolution, copper with it is dilute
Hydrochloric acid does not react, and nickel reacts with dilute hydrochloric acid and generates nickel chloride, and nickel chloride is the important nickel source for preparing pure nickel.
The beneficial effects of the present invention are:
The present invention pointedly separates back according to the plastic peel of nickel plated copper wire, the physicochemical characteristics of copper and mickel
Receipts processing carries out vacuum pyrolysis liquefaction for plastic peel, for nickel-clad copper rice, recycles simple substance in such a way that ball milling and acid are molten
Nickel is converted the nickel chloride raw material of industry by copper.The present invention compared with the existing technology for, simple using method, process flow is short,
Avoid dissolving cupro-nickel using a large amount of reagents, cause cost problem caused by a large amount of reagent waste and subsequent recovery metal,
Environmental problem, whole process cleanliness without any pollution, the rate of recovery are high.
Detailed description of the invention:
Fig. 1 is a kind of process flow chart of the separation and recovery method of nickel plated copper wire.
Specific embodiment:
Embodiment 1
It is that 2-5mm nickel plated copper wire is sent into wire stripper by inner core diameter, the plastic peel on cupro-nickel copper wire surface layer is separated, and will
It is pyrolyzed in plastic peel merging vacuum pyrolysis reaction unit, pyrolysis temperature is 350 DEG C, and reaction pressure 2KPa obtains heat
Solution oil；Shear treatment is carried out to the nickel plated copper wire for stripping plastic peel using copper rice machine, obtains the nickel-clad copper that length is 1-3cm
Rice；By steel ball that 1.2Kg nickel-clad copper rice and 1kg diameter are 30mm, 0.05kg silicone oil according to mixing after, vertical mixing is added together
In ball mill, the revolving speed of ball mill is 300r/min ball-milling treatment 30min, the nickel coating on nickel-clad copper rice surface layer and a small amount of copper quilt
It peels off；Material in ball mill is taken out, using alcohol washes, screening, obtains nickel removal copper rice and nickel, copper powder mixture；By nickel,
Copper powder mixture is placed in 0.5mol/L dilute hydrochloric acid, is stirred to react for 24 hours, and nickel is reacted with dilute hydrochloric acid generates nickel chloride, is obtained by filtration
Nickel chloride solution and copper powder.
Claims (7)
1. a kind of separation and recovery method of nickel plated copper wire, it is characterised in that: the following steps are included:
1) nickel plated copper wire, is sent into wire stripper, the plastic peel on cupro-nickel copper wire surface layer is separated, and plastic peel is placed in vacuum
It is pyrolyzed in pyrolytic reaction device, obtains pyrolysis oil；
2) shear treatment, is carried out to the nickel plated copper wire for stripping plastic peel using copper rice machine, obtains the nickel-clad copper that length is 1-3cm
Rice；
3) after, mixing the nickel-clad copper rice that step 1) obtains according to a certain percentage with steel ball, Medium Oil, vertical mixing is added together
In ball mill, ball-milling treatment 20-40min, the nickel coating and a small amount of copper on nickel-clad copper rice surface layer is peeled off；By the object in ball mill
Material takes out, and using alcohol washes, screening, obtains nickel removal copper rice and nickel, copper powder mixture；
4) it, by nickel, copper powder mixture merging dilute hydrochloric acid, is stirred to react for 24 hours, nickel is reacted with dilute hydrochloric acid generates nickel chloride, and copper is not
Participate in reaction；Nickel chloride solution and copper powder is obtained by filtration.
2. a kind of separation and recovery method of nickel plated copper wire according to claim 1, it is characterised in that: the nickel-clad copper rice
Diameter is 2-5mm.
3. a kind of separation and recovery method of nickel plated copper wire according to claim 2, it is characterised in that: in the step 1),
Plastic peel vacuum pyrolysis temperature is 350 DEG C, reaction pressure 2KPa.
4. a kind of separation and recovery method of nickel plated copper wire according to claim 3, it is characterised in that: in the step 3),
The diameter of the steel ball is 30mm, the nickel-clad copper rice and steel ball, Medium Oil mass ratio be 1.2:1:0.05.
5. a kind of separation and recovery method of nickel plated copper wire according to claim 1, it is characterised in that: in the step 3),
The revolving speed of the agitated ball mill is 200-300r/min.
6. a kind of separation and recovery method of nickel plated copper wire according to claim 1, it is characterised in that: the Medium Oil is stone
One of wax oil, silicone oil.
7. a kind of separation and recovery method of nickel plated copper wire according to claim 1, it is characterised in that: in the step 4),
The hydrochloric acid is the weak solution of 0.5mol/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811186489.0A CN109055766A (en) | 2018-10-12 | 2018-10-12 | A kind of separation and recovery method of nickel plated copper wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811186489.0A CN109055766A (en) | 2018-10-12 | 2018-10-12 | A kind of separation and recovery method of nickel plated copper wire |
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| Publication Number | Publication Date |
|---|---|
| CN109055766A true CN109055766A (en) | 2018-12-21 |
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ID=64764697
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811186489.0A Withdrawn CN109055766A (en) | 2018-10-12 | 2018-10-12 | A kind of separation and recovery method of nickel plated copper wire |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021037031A1 (en) * | 2019-08-26 | 2021-03-04 | 华南理工大学 | Method for refining large-diameter pure copper or copper alloy particles by high-energy ball milling |
-
2018
- 2018-10-12 CN CN201811186489.0A patent/CN109055766A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021037031A1 (en) * | 2019-08-26 | 2021-03-04 | 华南理工大学 | Method for refining large-diameter pure copper or copper alloy particles by high-energy ball milling |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181221 |
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| WW01 | Invention patent application withdrawn after publication |