CN107460322A - A kind of method and system for handling copper ashes - Google Patents

A kind of method and system for handling copper ashes Download PDF

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Publication number
CN107460322A
CN107460322A CN201710680449.0A CN201710680449A CN107460322A CN 107460322 A CN107460322 A CN 107460322A CN 201710680449 A CN201710680449 A CN 201710680449A CN 107460322 A CN107460322 A CN 107460322A
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China
Prior art keywords
copper ashes
entrance
copper
concentrate
levigate
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CN201710680449.0A
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Inventor
王敏
王健月
古明远
吴佩佩
王福佳
曹志成
吴道洪
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Jiangsu Province Metallurgical Design Institute Co Ltd
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Jiangsu Province Metallurgical Design Institute Co Ltd
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Priority to CN201710680449.0A priority Critical patent/CN107460322A/en
Publication of CN107460322A publication Critical patent/CN107460322A/en
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/001—Flotation agents
    • B03D1/002—Inorganic compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/001—Flotation agents
    • B03D1/004—Organic compounds
    • B03D1/012—Organic compounds containing sulfur
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/001—Flotation agents
    • B03D1/004—Organic compounds
    • B03D1/016—Macromolecular compounds
    • 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
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/02—Roasting 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
    • C22B15/0002—Preliminary treatment
    • 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
    • C22B19/00—Obtaining zinc or zinc oxide
    • C22B19/30—Obtaining zinc or zinc oxide from metallic residues or scraps
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D2201/00—Specified effects produced by the flotation agents
    • B03D2201/007—Modifying reagents for adjusting pH or conductivity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D2201/00—Specified effects produced by the flotation agents
    • B03D2201/02—Collectors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D2201/00—Specified effects produced by the flotation agents
    • B03D2201/04—Frothers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D2203/00—Specified materials treated by the flotation agents; specified applications
    • B03D2203/02—Ores
    • B03D2203/04—Non-sulfide ores
    • 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)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

The present invention relates to a kind of method and system for handling copper ashes.Methods described includes step：By copper ashes it is levigate after be sent into calciner, and be passed through oxygen or air is calcined, obtain being calcined copper ashes；It is levigate again that copper ashes will be calcined, then add collecting agent, foaming agent, regulator, adjustment solution ph carries out first time flotation reaction, obtains quartz concentrate and mine tailing；Collecting agent, foaming agent, regulator are added in mine tailing and carries out second of flotation reaction, obtains copper concentrate and iron ore concentrate；With also Primordial Qi reduction reaction occurs for iron ore concentrate, obtains sponge iron, also, reduction reaction occurs for the zinc contained in iron ore concentrate and with gaseous volatilization, obtains gas containing zinc.The present invention is calcined to copper ashes first, flotation, is removed the silicon in copper ashes, is advantageous to copper, iron, the Zn-ef ficiency in subsequent recovery copper ashes, improves metal recovery rate, energy consumption is low.

Description

A kind of method and system for handling copper ashes
Technical field
The present invention relates to metallurgical technology field, and in particular to a kind of method and system for handling copper ashes.
Background technology
In recent years, copper increase of production in the world's is rapid.Wherein, the copper yield in China is the first in the world.In copper ashes, the quality of iron Content is between 30~40%, higher than the Iron grade in current domestic industry ore dressing iron ore.Due to the difference in copper mine source, copper Also containing valuable metal elements such as cobalt, nickel, zinc in slag.
Copper ashes rich in iron, copper is largely stored up, and not only causes the significant wastage of resource, and takes a large amount of soils, pollution ring Border, so as to hinder the sustainable development of cupper smelting.The utilization of copper ashes receives the extensive concern of domestic and foreign scholars.At present, The recovery of iron, copper uses Physical ore-dressing technique, pyrometallurgy and hydrometallurgy more in copper ashes, but all iron can not be carried out efficient Recovery.
Copper ashes is further developed, extracts the valuable metals such as iron therein, zinc, reduces the ring of cupper smelting Border load, the comprehensive utilization of copper ashes is realized, iron ore deposit is widened, promotes Copper making industry sustainable health development, is had important Meaning.
But the main thing of iron is mutually fayalite (Fe in copper ashes2SiO4), it is difficult to reduce.Meanwhile containing big in copper ashes The silicon of amount, substantial amounts of heat can be consumed in reduction process, and it can not be recycled.
The content of the invention
The present invention is intended to provide the method and system of processing copper ashes, can be separately recovered using the method and system of the present invention Silicon, copper, iron, zinc metallic element in copper ashes, metal recovery rate is high, and technological process is simple, and energy consumption is low.
Present invention firstly provides a kind of method for handling copper ashes, including step：
A, by copper ashes it is levigate after be sent into calciner, and be passed through oxygen or air is calcined, obtain being calcined copper ashes；
B, it is the roasting copper ashes is levigate, collecting agent, foaming agent, regulator are then added, adjustment solution ph carries out the Flotation is reacted, and obtains quartz concentrate and mine tailing；
C, collecting agent, foaming agent, regulator are added in the mine tailing and carries out second of flotation reaction, obtains copper concentrate and iron Concentrate；
D, with also Primordial Qi reduction reaction occurs for the iron ore concentrate, obtains sponge iron, also, the zinc contained in the iron ore concentrate Generation reduction reaction and with gaseous volatilization, obtains gas containing zinc.
Further, in the roasting process, the amount that oxygen is passed through in every gram of copper ashes is 0.02~0.05L or every gram of copper The amount that air is passed through in slag is 0.095~0.238L.
As the preferred embodiment of the invention, the granularity after the copper ashes is levigate is 30~50 μm.
As the preferred embodiment of the invention, the granularity after the roasting copper ashes is levigate is 35~100 μm.
Further, it is 2~8 that solution ph is adjusted in the first time flotation course of reaction.Preferably, the first time It is 4~7 that solution ph is adjusted in flotation course of reaction.
Further, the temperature for controlling the roasting process is 650~850 DEG C, and roasting time is 50~70min.
Further, the temperature for controlling the reduction reaction is 900~1100 DEG C.
The invention also provides it is a kind of handle copper ashes system, the system include be sequentially connected the first fine mill, Calciner, the second fine mill, the first flotation unit, the second flotation unit, reduction apparatus.
First fine mill has copper ashes entrance, the outlet of levigate copper ashes.
The calciner has levigate copper ashes entrance, air inlet, the outlet of roasting copper ashes, the levigate copper ashes entrance and institute State the levigate copper ashes outlet connection of the first fine mill.
Second fine mill has roasting copper ashes entrance, a levigate roasting copper ashes outlet, the roasting copper ashes entrance with The roasting copper ashes outlet connection of the calciner.
There is first flotation unit levigate roasting copper ashes entrance, collecting agent entrance, foaming agent entrance, regulator to enter Mouth, quartz concentrate outlet, mine tailing outlet, the levigate roasting copper ashes of the levigate roasting copper ashes entrance and second fine mill Outlet connection.
Second flotation unit has mine tailing entrance, collecting agent entrance, foaming agent entrance, regulator entrance, copper concentrate Outlet, iron ore concentrate outlet, the mine tailing outlet of the mine tailing entrance and first flotation unit connect.
The reduction apparatus has iron ore concentrate entrance, also Primordial Qi entrance, sponge iron outlet, gas vent containing zinc, the iron The iron ore concentrate outlet of concentrate entrance and second flotation unit connects.
Further, also include pelletizing shaped device in said system, the pelletizing shaped device have iron ore concentrate entrance, Iron ore concentrate outlet is molded, the iron ore concentrate outlet of the iron ore concentrate entrance of the pelletizing shaped device and second flotation unit connects Connect, the shaping iron ore concentrate outlet of the pelletizing shaped device is connected with the iron ore concentrate entrance of the reduction apparatus.
As the preferred embodiment of the invention, the quartz concentrate exit of first flotation unit is provided with quartzy essence Ore deposit collector；The copper concentrate exit of second flotation unit is provided with copper concentrate collector；The reduction apparatus contains zinc Gas outlet is provided with dust collector.
The method and system of processing copper ashes proposed by the present invention, is modified roasting so that contain in copper ashes by copper ashes first The silica of flotation removing is capable of in some silicon generations, is removed in the copper ashes after silicon, copper and iron are enriched with, due to without silicon Influence, be more beneficial for the flotation recovery of copper in copper ashes and the reduction recovery of iron, also, recyclable Reduction Process of Iron Concentrate Fines obtains Gas containing zinc, substantially increase the rate of recovery of copper in copper ashes, iron, zinc.
In the method for the present invention, copper ashes and roasting copper ashes are entered respectively before the roasting and first time flotation of copper ashes is carried out Processing that row is levigate so that roasting and floatation process are carried out more abundant, effectively improve production efficiency.
Present invention process simple flow, and energy consumption is relatively low.
Brief description of the drawings
Fig. 1 is a kind of method flow schematic diagram for handling copper ashes provided by the invention.
Fig. 2 is a kind of system schematic for handling copper ashes provided by the invention.
Reference in accompanying drawing is as follows：
The fine mills of 1- first；2- calciners；The fine mills of 3- second；The flotation units of 4- first；The flotation of 5- second fills Put；6- pelletizing shaped devices；7- reduction apparatus.
Embodiment
Below in conjunction with drawings and examples, the embodiment of the present invention is described in more details, so as to energy The advantages of enough more fully understanding the solution of the present invention and its various aspects.However, specific embodiments described below and reality Example is applied to be for illustrative purposes only, rather than limitation of the present invention.
Due to the silicon contained in copper ashes be largely in the form of ferrosilite existing for, be difficult using traditional beneficiation method Silicon is selected, still, the presence of a large amount of silicon, influences the reduction selected with iron of copper in copper ashes in copper ashes.Place proposed by the present invention The method and system of copper ashes is managed, is modified roasting to copper ashes first so that ferrosilite is destructurized in copper ashes, obtains energy The silica of flotation is enough carried out, so as to tentatively remove the silicon in copper ashes.The copper ashes after silicon is removed in recovery copper, iron, Zn-ef ficiency When it is more favourable, it is more efficient.
As shown in figure 1, for the method flow schematic diagram of present invention processing copper ashes, comprise the following steps：
A, copper ashes is calcined
By copper ashes it is levigate after be sent into calciner, and be passed through oxygen or air is calcined, obtain being calcined copper ashes.
Due to containing substantial amounts of silicon in copper ashes, and silicon is largely existing in the form of ferrosilite, in roasting process, Ferrosilite oxidation Decomposition is ferroso-ferric oxide and silica, can be come out silica flotation by the method for flotation.
As the preferred embodiment of the invention, the granularity after copper ashes is levigate is 30~50 μm, can ensure filling for copper ashes Divide roasting.
Roasting process need to be passed through oxygen or air so that copper ashes carries out oxidizing roasting.When being passed through oxygen, the addition of oxygen Measure and be：Every gram of copper ashes is passed through 0.02~0.05L oxygen；When being passed through air, the addition of air is：Every gram of copper ashes is passed through 0.095~0.238L air.
In roasting process, it is 650~850 DEG C to control sintering temperature, and roasting time is 50~70min.
B, it is calcined copper ashes and carries out levigate, flotation
It is levigate that copper ashes will be calcined, be sent into flotation unit, and add collecting agent, foaming agent, regulator, the pH of solution will be entered First time flotation reaction is carried out after row adjustment, obtains quartz concentrate and mine tailing.Quartz concentrate carries out recovery collection, removes in copper ashes The silicon contained, be advantageous to iron, copper, Zn-ef ficiency in subsequent recovery copper ashes, and improve organic efficiency.
As the preferred embodiment of the invention, the granularity after roasting copper ashes is levigate is 35~100 μm, can be ensured to roasting Burn copper ashes and carry out abundant flotation.It is furthermore preferred that the granularity after roasting copper ashes is levigate is 50~75 μm.
In the first time flotation course of reaction, the pH value for adjusting solution is 2~8.Preferably, solution ph is adjusted to 4 ~7
As the preferred embodiment of the invention, one in collecting agent selected fatty acid, hydrocarbyl sulfonate, sulfovinate Kind or several mixtures, collector dosage are 250~350mg/L.It is furthermore preferred that collector dosage is 280~330mg/L. Foaming agent selects terpenic oil or polypropylene glycol.Regulator selects sulfuric acid or sodium hydroxide, molten in flotation course of reaction for adjusting The pH value of liquid.
C, mine tailing carries out second of flotation
Collecting agent, foaming agent, regulator are added in the mine tailing that step B is obtained, carries out second of flotation reaction, obtains copper essence Ore deposit and iron ore concentrate.Copper concentrate carries out recovery collection.
As the preferred embodiment of the invention, collecting agent selects butyl xanthate, and dosage is 120~220g/t (g ton).More Preferably, collector dosage is 130~200g/t.Foaming agent b selects terpenic oil or polypropylene glycol.Regulator b selects quick lime, Dosage is 3~4kg/t.
D, iron ore concentrate reduction recovery iron and zinc
With also Primordial Qi reduction reaction occurs for the iron ore concentrate that step C is obtained, and obtains sponge iron, meanwhile, contain in iron ore concentrate Zinc occurs reduction reaction and with gaseous volatilization, obtains gas containing zinc.Further, zinc-containing dust is obtained after gas cooling containing zinc. Then, recovery collection is carried out respectively to sponge iron and zinc-containing dust.
As the preferred embodiment of the invention, the temperature for controlling reduction reaction is 900~1100 DEG C, can ensure iron essence The abundant Reduced separating of iron and zinc in ore deposit.
As shown in Fig. 2 the system schematic for processing copper ashes provided by the invention.It is levigate that the system of the present invention includes first Device 1, calciner 2, the second fine mill 3, the first flotation unit 4, the second flotation unit 5, reduction apparatus 7.
First fine mill 1 is used for levigate copper ashes raw material, has copper ashes entrance 11, levigate copper ashes outlet 12.
Calciner 2 is used for modified roasting copper ashes, and it has levigate copper ashes entrance 21, air inlet 22, the outlet of roasting copper ashes 23.The levigate copper ashes entrance 21 of calciner 2 is connected with the levigate copper ashes outlet 12 of the first fine mill 1.
Second fine mill 3 is used for the levigate roasting copper ashes being sent into by calciner 2 so that particle diameter disclosure satisfy that flotation The requirement of journey, it has roasting copper ashes entrance 31, levigate roasting copper ashes outlet 32.The roasting copper ashes entrance of second fine mill 3 31 are connected with the roasting copper ashes outlet 23 of calciner 2.
First flotation unit 4 be used for receive it is levigate after roasting copper ashes, floatingly select silica therein, it has levigate It is calcined copper ashes entrance 41, collecting agent entrance 42, foaming agent entrance 43, regulator entrance 44, quartz concentrate outlet 45, mine tailing outlet 46.The levigate roasting copper ashes entrance 41 of first flotation unit 4 is connected with the levigate roasting copper ashes outlet 32 of the second fine mill 3. Quartz concentrate outlet 45 is connected with quartz concentrate collector, for reclaiming quartz concentrate.
Wherein, collecting agent entrance 42, foaming agent entrance 43, regulator entrance 44 are respectively used into the first flotation unit 4 It is sent into collecting agent, foaming agent, regulator so that three kinds of medicaments react with levigate roasting copper ashes, and then floatingly select wherein Quartz concentrate, i.e., siliceous concentrate, realize the removing of silicon in copper ashes.In addition, collecting agent entrance 42, foaming agent entrance 43, tune in Fig. 2 The position of whole dose of entrance 44 is only schematic diagram, does not represent the actual positional relationship of three entrances.
Second flotation unit 5 is used to receive the mine tailing that the first flotation unit 4 is sent into, and further floatingly selects copper concentrate therein And iron ore concentrate, it has mine tailing entrance 51, collecting agent entrance 52, foaming agent entrance 53, regulator entrance 54, copper concentrate outlet 55th, iron ore concentrate outlet 56.The mine tailing entrance 51 of second flotation unit 5 is connected with the mine tailing outlet 46 of the first flotation unit 4.Its In, copper concentrate outlet 55 is connected with copper concentrate collector, for reclaiming copper concentrate.
Wherein, collecting agent entrance 52, foaming agent entrance 53, regulator entrance 54 are respectively used into the second flotation unit 5 It is sent into collecting agent, foaming agent, regulator so that three kinds of medicaments react with mine tailing, floatingly select copper concentrate and iron therein Concentrate.In addition, collecting agent entrance 52, foaming agent entrance 53, the position of regulator entrance 54 are only schematic diagram in Fig. 2, do not represent The actual positional relationship of three entrances.
Reduction apparatus 7 is used for reduced iron concentrate, and iron and zinc is separately recovered, and it has iron ore concentrate entrance 71, also Primordial Qi entrance 72nd, gas vent containing zinc 73, sponge iron outlet 74.The iron ore concentrate of the flotation unit 5 of iron ore concentrate entrance 71 and second of reduction apparatus 7 The connection of outlet 56.Also, gas vent containing zinc 73 is connected with exhaust apparatus, and is provided with dust collector, and gas containing zinc is through cold But the dust obtained afterwards is reclaimed by dust collector.Sponge iron outlet 74 is connected with sponge iron collector, is received for reclaiming Collect sponge iron.
As the preferred embodiment of the invention, pelletizing shaped device 6 is additionally provided with said system.Pelletizing shaped device 6 iron ore concentrates for being used to the second flotation unit 5 being sent into carry out pelletizing forming processes, and it has iron ore concentrate entrance 61, forming iron essence Ore deposit outlet 62.Wherein, iron ore concentrate entrance 61 is connected with the iron ore concentrate outlet 56 of the second flotation unit 5, shaping iron ore concentrate outlet 62 It is connected with the iron ore concentrate entrance 71 of reduction apparatus.
Embodiment 1
Smelting copper ashes is taken, its composition (quality accounting) is：Ferrosilite 75.1%, magnetic iron ore 6.01%, copper matte regulus 4.22%, zinc 1.03%.Copper ashes is milled down to particle diameter as 50 μm, is then calcined, in roasting process, 0.036L oxygen is passed through in every gram of copper ashes Gas, sintering temperature are 800 DEG C, roasting time 70min.
It to particle diameter is 80 μm that it is levigate, which to be calcined copper ashes, and carries out first time flotation, the collecting agent that flotation uses is hydrocarbyl sulfonic Salt, foaming agent are terpenic oil, and regulator is sodium hydroxide.Wherein, hydrocarbyl sulfonate dosage is 300mg/L, floatation process pH value For 3.First time flotation obtains quartz concentrate and mine tailing.In quartz concentrate, the rate of recovery of silicon is 95%.
Mine tailing obtained above carries out second of flotation, and for the collecting agent that flotation uses for butyl xanthate, foaming agent is terpenic oil, Regulator is quick lime.Wherein, butyl xanthate dosage is 200g/t, and quick lime dosage is 3kg/t.Second of flotation obtains copper concentrate And iron ore concentrate.In copper concentrate, the rate of recovery of copper is 86%.Iron ore concentrate is in H2Gas-based reduction, reduction temperature are carried out under+CO atmosphere For 1000 DEG C, degree of metalization is obtained after reduction as 85% sponge iron, the volatility of zinc is 98% in reduction process.
Embodiment 2
Smelting copper ashes is taken, its composition (quality accounting) is：Ferrosilite 45.1%, magnetic iron ore 28.7%, copper matte regulus 5.09%, zinc 1.22%.Copper ashes is milled down to particle diameter as 35 μm, is then calcined, in roasting process, 0.03L oxygen is passed through in every gram of copper ashes Gas, sintering temperature are 750 DEG C, roasting time 65min.
It to particle diameter is 85 μm that it is levigate, which to be calcined copper ashes, and carries out first time flotation, the collecting agent that flotation uses is hydrocarbyl sulfonic Salt, foaming agent are terpenic oil, and regulator is sodium hydroxide.Wherein, hydrocarbyl sulfonate dosage is 300mg/L, floatation process pH value For 5.First time flotation obtains quartz concentrate and mine tailing.In quartz concentrate, the rate of recovery of silicon is 90%.
Mine tailing obtained above carries out second of flotation, and for the collecting agent that flotation uses for butyl xanthate, foaming agent is poly- the third two Alcohol, regulator are quick lime.Wherein, butyl xanthate dosage is 180g/t, and quick lime dosage is 3.2kg/t.Second of flotation obtains Copper concentrate and iron ore concentrate.In copper concentrate, the rate of recovery of copper is 88%.Iron ore concentrate is in H2Gas-based reduction is carried out under+CO atmosphere, also Former temperature is 950 DEG C, degree of metalization is obtained after reduction as 82% sponge iron, the volatility of zinc is 97% in reduction process.
Embodiment 3
Smelting copper ashes is taken, its composition (quality accounting) is：Ferrosilite 45.1%, magnetic iron ore 28.7%, copper matte regulus 5.09%, zinc 1.22%.Copper ashes is milled down to particle diameter as 45 μm, is then calcined, in roasting process, 0.037L oxygen is passed through in every gram of copper ashes Gas, sintering temperature are 800 DEG C, roasting time 60min.
It to particle diameter is 100 μm that it is levigate, which to be calcined copper ashes, and carries out first time flotation, the collecting agent that flotation uses is hydrocarbyl sulfonic Salt, foaming agent are terpenic oil, and regulator is sodium hydroxide.Wherein, hydrocarbyl sulfonate dosage is 300mg/L, floatation process pH value For 7.First time flotation obtains quartz concentrate and mine tailing.In quartz concentrate, the rate of recovery of silicon is 89%.
Mine tailing obtained above carries out second of flotation, and for the collecting agent that flotation uses for butyl xanthate, foaming agent is terpenic oil, Regulator is quick lime.Wherein, butyl xanthate dosage is 210g/t, and quick lime dosage is 3.8kg/t.Second of flotation obtains copper essence Ore deposit and iron ore concentrate.In copper concentrate, the rate of recovery of copper is 90%.Iron ore concentrate is in H2Gas-based reduction, reduction temperature are carried out under+CO atmosphere Spend and degree of metalization for 1100 DEG C, is obtained after reduction as 88% sponge iron, the volatility of zinc is 99% in reduction process.
Embodiment 4
Smelting copper ashes is taken, its composition (quality accounting) is：Ferrosilite 50.23%, magnetic iron ore 12.96%, copper matte regulus 4.67%, Zinc 1.15%.Copper ashes is milled down to particle diameter as 30 μm, is then calcined, in roasting process, 0.15L skies are passed through in every gram of copper ashes Gas, sintering temperature are 650 DEG C, roasting time 70min.
It to particle diameter is 50 μm that it is levigate, which to be calcined copper ashes, and carries out first time flotation, the collecting agent that flotation uses for aliphatic acid, Infusion is polypropylene glycol, and regulator is sodium hydroxide.Wherein, aliphatic acid dosage is 280mg/L, and floatation process pH value is 6.First Secondary flotation obtains quartz concentrate and mine tailing.In quartz concentrate, the rate of recovery of silicon is 90%.
Mine tailing obtained above carries out second of flotation, and for the collecting agent that flotation uses for butyl xanthate, foaming agent is poly- the third two Alcohol, regulator are quick lime.Wherein, butyl xanthate dosage is 150g/t, and quick lime dosage is 3.6kg/t.Second of flotation obtains Copper concentrate and iron ore concentrate.In copper concentrate, the rate of recovery of copper is 91%.Iron ore concentrate is in H2Gas-based reduction is carried out under+CO atmosphere, also Former temperature is 900 DEG C, degree of metalization is obtained after reduction as 90% sponge iron, the volatility of zinc is 98% in reduction process.
Embodiment 5
Smelting copper ashes is taken, its composition (quality accounting) is：Ferrosilite 50.23%, magnetic iron ore 12.96%, copper matte regulus 4.67%, Zinc 1.15%.Copper ashes is milled down to particle diameter as 50 μm, is then calcined, in roasting process, 0.05L oxygen is passed through in every gram of copper ashes Gas, sintering temperature are 850 DEG C, roasting time 50min.
It to particle diameter is 75 μm that it is levigate, which to be calcined copper ashes, and carries out first time flotation, the collecting agent that flotation uses is sulfovinic acid Salt, foaming agent are polypropylene glycol, and regulator is sulfuric acid.Wherein, sulfovinate dosage is 330mg/L, and floatation process pH value is 4.First time flotation obtains quartz concentrate and mine tailing.In quartz concentrate, the rate of recovery of silicon is 93%.
Mine tailing obtained above carries out second of flotation, and for the collecting agent that flotation uses for butyl xanthate, foaming agent is poly- the third two Alcohol, regulator are quick lime.Wherein, butyl xanthate dosage is 130g/t, and quick lime dosage is 4kg/t.Second of flotation obtains copper Concentrate and iron ore concentrate.In copper concentrate, the rate of recovery of copper is 92%.Iron ore concentrate is in H2Gas-based reduction is carried out under+CO atmosphere, is reduced Temperature is 970 DEG C, degree of metalization is obtained after reduction as 90% sponge iron, the volatility of zinc is 99% in reduction process.
Finally it should be noted that：Obviously, above-described embodiment is only intended to clearly illustrate example of the present invention, and simultaneously The non-restriction to embodiment.For those of ordinary skill in the field, can also do on the basis of the above description Go out other various forms of changes or variation.There is no necessity and possibility to exhaust all the enbodiments.And thus drawn Among the obvious changes or variations that Shen goes out is still in protection scope of the present invention.

Claims (10)

  1. A kind of 1. method for handling copper ashes, it is characterised in that methods described includes step：
    A, by copper ashes it is levigate after be sent into calciner, and be passed through oxygen or air is calcined, obtain being calcined copper ashes；
    B, it is the roasting copper ashes is levigate, collecting agent, foaming agent, regulator are then added, adjustment solution ph is carried out for the first time Flotation is reacted, and obtains quartz concentrate and mine tailing；
    C, collecting agent, foaming agent, regulator are added in the mine tailing and carries out second of flotation reaction, obtains copper concentrate and iron essence Ore deposit；
    D, with also Primordial Qi reduction reaction occurs for the iron ore concentrate, obtains sponge iron, also, the zinc contained in the iron ore concentrate occurs Reduction reaction and with gaseous volatilization, obtains gas containing zinc.
  2. 2. according to the method for claim 1, it is characterised in that in the roasting process, oxygen is passed through in every gram of copper ashes It is 0.095~0.238L to measure to be passed through the amount of air in 0.02~0.05L or every gram of copper ashes.
  3. 3. according to the method for claim 1, it is characterised in that the granularity after the copper ashes is levigate is 30~50 μm.
  4. 4. according to the method for claim 1, it is characterised in that the granularity after the roasting copper ashes is levigate is 35~100 μm.
  5. 5. according to the method for claim 1, it is characterised in that adjust solution ph in the first time flotation course of reaction For 2~8.
  6. 6. according to the method for claim 1, it is characterised in that the temperature for controlling the roasting process is 650~850 DEG C, Roasting time is 50~70min.
  7. 7. according to the method for claim 1, it is characterised in that the temperature for controlling the reduction reaction is 900~1100 DEG C.
  8. 8. a kind of system for handling copper ashes, the system is used for the method for any described processing copper ashes of claim 1-7, and it is special Sign is that the system includes the first fine mill, calciner, the second fine mill, the first flotation unit, the second flotation dress Put, reduction apparatus；
    First fine mill has copper ashes entrance, the outlet of levigate copper ashes；
    The calciner has levigate copper ashes entrance, air inlet, the outlet of roasting copper ashes, the levigate copper ashes entrance and described the The levigate copper ashes outlet connection of one fine mill；
    Second fine mill has roasting copper ashes entrance, a levigate roasting copper ashes outlet, the roasting copper ashes entrance with it is described The roasting copper ashes outlet connection of calciner；
    First flotation unit has levigate roasting copper ashes entrance, collecting agent entrance, foaming agent entrance, regulator entrance, stone The outlet of English concentrate, mine tailing outlet, the levigate roasting copper ashes of the levigate roasting copper ashes entrance and second fine mill export Connection；
    Second flotation unit have mine tailing entrance, collecting agent entrance, foaming agent entrance, regulator entrance, copper concentrate outlet, Iron ore concentrate exports, and the mine tailing outlet of the mine tailing entrance and first flotation unit connects；
    The reduction apparatus has iron ore concentrate entrance, also Primordial Qi entrance, sponge iron outlet, gas vent containing zinc, the iron ore concentrate The iron ore concentrate outlet of entrance and second flotation unit connects.
  9. 9. system according to claim 8, it is characterised in that also including pelletizing shaped device, the pelletizing shaped device With iron ore concentrate entrance, the outlet of shaping iron ore concentrate, the iron ore concentrate entrance of the pelletizing shaped device and second flotation unit Iron ore concentrate outlet connection, the outlet of shaping iron ore concentrate and the iron ore concentrate entrance of the reduction apparatus of the pelletizing shaped device connect Connect.
  10. 10. system according to claim 8, it is characterised in that the quartz concentrate exit of first flotation unit is set It is equipped with quartz concentrate collector；The copper concentrate exit of second flotation unit is provided with copper concentrate collector；The reduction The gas outlet containing zinc of device is provided with dust collector.
CN201710680449.0A 2017-08-10 2017-08-10 A kind of method and system for handling copper ashes Pending CN107460322A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112695203A (en) * 2020-12-07 2021-04-23 鹰潭盛发铜业有限公司 Efficient and environment-friendly recovery method of copper slag
CN112934478A (en) * 2021-03-17 2021-06-11 安徽工业大学 Method for recovering iron concentrate in copper slag floating copper tailings by microwave low-temperature reduction roasting
CN114686632A (en) * 2022-04-08 2022-07-01 瀜矿环保科技(上海)有限公司 Copper slag recycling and industrial solid waste-based CO2Mineralization coupling method and system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112695203A (en) * 2020-12-07 2021-04-23 鹰潭盛发铜业有限公司 Efficient and environment-friendly recovery method of copper slag
CN112934478A (en) * 2021-03-17 2021-06-11 安徽工业大学 Method for recovering iron concentrate in copper slag floating copper tailings by microwave low-temperature reduction roasting
CN114686632A (en) * 2022-04-08 2022-07-01 瀜矿环保科技(上海)有限公司 Copper slag recycling and industrial solid waste-based CO2Mineralization coupling method and system
WO2023193714A1 (en) * 2022-04-08 2023-10-12 瀜矿环保科技(上海)有限公司 Method and system for coupling copper slag recycling with co2 mineralization based on industrial solid waste
CN114686632B (en) * 2022-04-08 2024-03-22 瀜矿环保科技(上海)有限公司 Copper slag recycling and CO based on industrial solid waste 2 Mineralization coupling method and mineralization coupling system

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