CN109022809A - A kind of organic acid sodium-iron chip filter reduction melting copper dross slag new process - Google Patents
A kind of organic acid sodium-iron chip filter reduction melting copper dross slag new process Download PDFInfo
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- CN109022809A CN109022809A CN201810848415.2A CN201810848415A CN109022809A CN 109022809 A CN109022809 A CN 109022809A CN 201810848415 A CN201810848415 A CN 201810848415A CN 109022809 A CN109022809 A CN 109022809A
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- Prior art keywords
- matte
- lead
- organic acid
- acid sodium
- copper
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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
- C22B7/04—Working-up slag
-
- 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
- C22B11/00—Obtaining noble metals
- C22B11/02—Obtaining noble metals by dry processes
- C22B11/021—Recovery of noble metals from waste materials
- C22B11/023—Recovery of noble metals from waste materials from pyrometallurgical residues, e.g. from ashes, dross, flue dust, mud, skim, slag, sludge
-
- 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
- C22B13/00—Obtaining lead
- C22B13/02—Obtaining lead by dry processes
- C22B13/025—Recovery from waste materials
-
- 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
- C22B13/00—Obtaining lead
- C22B13/06—Refining
-
- 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
- C22B15/0026—Pyrometallurgy
- C22B15/0028—Smelting or converting
- C22B15/0052—Reduction smelting or converting
-
- 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
- C22B15/0026—Pyrometallurgy
- C22B15/0054—Slag, slime, speiss, or dross treating
-
- 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
- C22B30/00—Obtaining antimony, arsenic or bismuth
- C22B30/02—Obtaining antimony
-
- 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
- C22B30/00—Obtaining antimony, arsenic or bismuth
- C22B30/06—Obtaining bismuth
-
- 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
-
- 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
Abstract
The present invention relates to a kind of " organic acid sodium-iron chip filter " reduction melting copper dross slag new processes, soda ash and reductive coke melting lead is replaced to refine copper dross slag using organic acid sodium, reduction melting copper dross slag is carried out in reverberatory furnace extracts heavy metal, rare metal, noble metal, than using soda ash and coke melting that there is better reproducibility and dispersibility, copper, lead, bismuth, antimony, gold, silver direct yield reach 93% or more, matte cupric reaches 48%, matte leaded 8% hereinafter, the copper-lead of matte than 8 or more.
Description
Technical field
The invention patent belongs to technical field of non-ferrous metallurgy, and in particular to a kind of organic acid sodium-iron chip filter reduction melting copper
Dross new process recycles heavy metal therein, rare metal, noble metal for lead refining preliminary fire refining copper dross slag processing
Etc. technologies.
Background technique
Lead refining copper dross slag usually contains a large amount of valuable metal, and traditional smelting process is usually to be incorporated coke (or also
Raw coal), soda ash, iron filings heavy metal, rare metal and noble metal therein recycled using reverberatory smelting.Have containing rare gold
Belong to, the alloy of noble metal, return to preliminary fire refining and electrorefining, segmentation is gradually extracted.
Summary of the invention
The object of the present invention is to provide a kind of organic acid sodium-iron chip filter reduction melting copper dross slag new processes, through the invention
Implementation, can optimize copper dross slag melting production technology, reduce production cost, promote to increase economic efficiency.
The present invention program is: a kind of organic acid sodium-iron chip filter reduction melting copper dross slag new process, is replaced using organic acid sodium
Soda ash and reductive coke melting lead refine copper dross slag, referred to as " organic acid sodium-iron chip filter " reduction melting copper dross slag new process；
The specific process is as follows:
1. after lead is refined preliminary fire refining liquation decoppering, the copper dross slag and lead oxide, organic acid sodium, iron pulled out from market pot
Consider 20~22:7 in mass ratio~8:4:1 mixing to be worth doing；
2. mixed raw material carries out melting at a high temperature of 1200 DEG C -1300 DEG C in reverberatory furnace；Flue dust caused by reverberatory furnace is logical
Cloth bag empties after gathering dust；
3. after material is completely melt, the iron filings for adding solution gross mass 2~3% are stirred, manufacture ice copper, obtains shoddye, ice
Copper and lead bullion；Shoddye, matte and lead bullion are different by specific gravity and are layered and release；
4. generated shoddye returns to smelting system ingredient.
3. the matte of the step includes sodium matte, setting form；Matte iron content, which is maintained at 15%, to be advisable, matte it is leaded
5% or less；The fusing point of matte is 900 DEG C -1000 DEG C at this time.
Technological principle of the invention:
1. after lead of the present invention refining preliminary fire refining liquation decoppering, the dross conjunction pulled out from market pot have lead, copper and other have
Valence metal；In order to recycle lead therein, enriching Cu at matte, using organic acid sodium method；This method is by copper dross slag and lead oxide, has
The mixing such as machine acid sodium, iron filings, carries out melting at a high temperature of 1200 DEG C~1300 DEG C in reverberatory furnace.After material is completely melt,
It adds a small amount of iron filings to be stirred, manufacture ice copper, and shoddye, matte, the specific gravity of lead are different and be layered and release；
2. the dispersed effect that organic acid sodium has soda ash is added in the present invention, it is to reduce the fusing point of clinker and matte, improves slag
It with the mobility of matte, carries out fusion process at a lower temperature, while the lead tolerance of slag and matte can be reduced；Its melting
Mechanism:
A. organic acid sodium can make sodium matte, be fused to iron largely in sodium matte, replace the lead in vulcanized lead, reduce matte and contain
Lead；
B. sodium matte fusing point is low, viscosity is small, and the lead convenient for being replaced is detached from matte layer and enters lead liquid；
C. 730 DEG C of setting form fusing point make basic slag, generate low melting point sodium salt, improve the viscosity and mobility of slag, reduce slag and contain
Lead, copper；
D. the lead that displacement enters in slag reduces lead-in-dreg；
3. the effect of iron filings is added in the present invention:
A. it is incorporated 3% iron in furnace charge, reduces the organic acid sodium amount of slag making consumption, guarantees the needs for making sodium matte；
B. lead-in-dreg is reduced.Furnace charge iron content increases l%, and the rate of recovery of lead improves l%~2%；
C. the fusing point of slag is reduced, but excessive with iron, zinc ferrite or ferrous acid Asia zinc (Armco magnetic iron, fusing point l527 may be generated
DEG C), it influences to produce；
D. iron needed for guaranteeing matte, matte iron content, which is maintained at 15% or so, to be advisable, and the fusing point of matte is 900 DEG C -1000 at this time
DEG C, good fluidity, matte is leaded below 5%；
E. iron can be fused in sodium matte, replace the lead in PbS；
F. iron can destroy setting form, go out the scorification for being fused to setting form；
Such as plus Fe supply, there may be metallic copper precipitation, copper furnace knot is generated between matte and lead layer；
4. adding the purpose and principle of lead oxide in ingredient of the present invention:
A. purpose is to destroy setting form, makes arsenic volatilization or slag making, reduces setting form, it is leaded to reduce matte；
B. principle: in fritting state: lead oxide reacts significantly with vulcanized lead, and lead oxide dosage is depending on furnace charge situation；Furnace charge
When degree of oxidation is very poor, containing arsenic it is also high, then can polygamy, otherwise match less, generally be added 20%~24% lead oxide, do not surpass at most
Cross 25%.
Technical advantage possessed by the present invention
1, organic acid sodium decomposites a large amount of carbon monoxide at high temperature has reduction, can be by the huge sum of money in the earth of positive pole
Category, rare metal, noble metal enable rare metal, noble metal to be enriched with it at metal, and using heavy metal lead as carrier
In, form precious metal alloys；
2, after organic acid sodium decomposes, the vulcanized sodium of generation has dispersibility, can reduce the fusing point of matte and shoddye, improves residue
Mobility, promote lead-containing alloy, matte, shoddye to efficiently separate；
3, volatile metal such as indium and part metals antimony reoxidize after being reduced into flue dust, are trapped by bag collection, into
Row recycling；
4, the shoddye amount of output is few, and contains only a small amount of valuable metal, can return to smelting system ingredient, follows in system
Ring improves recovery rate of valuable metals；
5, coke and soda ash are replaced using organic acid sodium, reduction melting copper dross slag is carried out in reverberatory furnace and extracts heavy metal, rare
Metal, noble metal have better reproducibility and a dispersibility than using soda ash and coke melting, copper, lead, bismuth, antimony, gold, silver
Direct yield reaches 93% or more, and matte cupric reaches 48%, matte leaded 8% hereinafter, the copper-lead of matte than 8 or more.
Detailed description of the invention
Fig. 1 is process flow chart of the invention.
Specific embodiment
Fig. 1 is to state a kind of organic acid sodium-iron chip filter reduction melting copper dross slag new process, replaces soda ash using organic acid sodium
Copper dross slag is refined with reductive coke melting lead, technique is as follows:
1. after lead is refined preliminary fire refining liquation decoppering, the copper dross slag and lead oxide, organic acid sodium, iron pulled out from market pot
Consider the mixing of 64:21:12:3 in mass ratio to be worth doing；
2. mixed raw material carries out melting at a high temperature of 1200 DEG C -1300 DEG C in reverberatory furnace；Flue dust caused by reverberatory furnace is logical
Cloth bag empties after gathering dust；
3. after material is completely melt, the iron filings for adding solution gross mass 2~3% are stirred, manufacture ice copper, obtains shoddye, ice
Copper and lead bullion；Shoddye, matte and lead bullion are different by specific gravity and are layered and release；
4. generated shoddye returns to smelting system ingredient.
3. the matte of the step includes sodium matte, setting form；Matte iron content, which is maintained at 15%, to be advisable, matte it is leaded
5% or less；The fusing point of matte is 900 DEG C -1000 DEG C at this time.
The present embodiment remarkable in economical benefits, it is pure in recent years although soda ash and coke are widely used in pyrometallurgical smelting
Alkali and coke price are high, and are expected to rise always, and price is all 2,000 yuan per ton or more (arriving factory cost, rear same)；And
Only 800 yuan per ton of the price of organic acid sodium.Since organic acid sodium can replace soda ash and coke simultaneously, cost savings 60% with
On.One ton of copper dross slag of every processing can save 376 yuan of producing cost.Production scale is bigger, and economic benefit is more obvious.
12% calculation scale economic benefit of copper dross slag quantum of output average level is smelted with domestic lead: being shown in Table 1
Table 1: the economic benefit table of comparisons of different output scale
| Lead smelts scale (ton/year) | Copper dross slag treating capacity (ton/year) | Save expense (increasing economic benefit) (member) year |
| 10000 | 1200 | 451200 |
| 20000 | 2400 | 902400 |
| 30000 | 3600 | 1353600 |
| 40000 | 4800 | 1804800 |
| 50000 | 6000 | 225600 |
| 60000 | 7200 | 2707200 |
| 70000 | 8400 | 3158400 |
| 80000 | 9600 | 3609600 |
| 90000 | 10800 | 4060800 |
| 100000 | 12000 | 4512000 |
Claims (2)
1. a kind of " organic acid sodium-iron chip filter " reduction melting copper dross slag new process, it is characterised in that: replaced using organic acid sodium pure
Alkali and reductive coke melting lead refine copper dross slag；
The specific process is as follows:
1. after lead is refined preliminary fire refining liquation decoppering, the copper dross slag and lead oxide, organic acid sodium, iron pulled out from market pot
Consider 20~22:7 in mass ratio~8:4:1 mixing to be worth doing；
2. mixed raw material carries out melting at a high temperature of 1200 DEG C -1300 DEG C in reverberatory furnace；Flue dust caused by reverberatory furnace is logical
Cloth bag empties after gathering dust；
3. after material is completely melt, the iron filings for adding solution gross mass 2~3% are stirred, manufacture ice copper, obtains shoddye, ice
Copper and lead bullion；Shoddye, matte and lead bullion are different by specific gravity and are layered and release；
4. generated shoddye returns to smelting system ingredient.
2. one kind " organic acid sodium-iron chip filter " reduction melting copper dross slag new process according to claim 1, feature exist
In: the matte of the 3. step includes sodium matte, setting form；Matte iron content, which is maintained at 15%, to be advisable, matte it is leaded 5% with
Under；The fusing point of matte is 900 DEG C -1000 DEG C at this time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810848415.2A CN109022809B (en) | 2018-07-27 | 2018-07-27 | Process for reducing and smelting copper dross by using sodium organic acid-scrap iron method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810848415.2A CN109022809B (en) | 2018-07-27 | 2018-07-27 | Process for reducing and smelting copper dross by using sodium organic acid-scrap iron method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109022809A true CN109022809A (en) | 2018-12-18 |
| CN109022809B CN109022809B (en) | 2020-05-22 |
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| CN201810848415.2A Active CN109022809B (en) | 2018-07-27 | 2018-07-27 | Process for reducing and smelting copper dross by using sodium organic acid-scrap iron method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113201654A (en) * | 2021-04-29 | 2021-08-03 | 江西金德铅业股份有限公司 | Novel process method for smelting copper dross in reverberatory furnace |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5223021A (en) * | 1992-02-13 | 1993-06-29 | E. I. Du Pont De Nemours And Company | Iron as a co-additive in refining crude lead bullion |
| CN101358286A (en) * | 2008-09-25 | 2009-02-04 | 昆明理工大学 | Method for treating copper scum using converter |
| CN103924094A (en) * | 2014-04-16 | 2014-07-16 | 济源市万洋冶炼(集团)有限公司 | Method for treating copper dross |
| CN104946899A (en) * | 2015-06-03 | 2015-09-30 | 青海西豫有色金属有限公司 | Edge transmission top-blown converter and depleted sedimentation furnace combined lead dross treatment method |
| CN105132708A (en) * | 2015-10-12 | 2015-12-09 | 湖南金旺铋业股份有限公司 | Process method for sufficiently recycling precious metal from copper dross and copper matte |
-
2018
- 2018-07-27 CN CN201810848415.2A patent/CN109022809B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5223021A (en) * | 1992-02-13 | 1993-06-29 | E. I. Du Pont De Nemours And Company | Iron as a co-additive in refining crude lead bullion |
| CN101358286A (en) * | 2008-09-25 | 2009-02-04 | 昆明理工大学 | Method for treating copper scum using converter |
| CN103924094A (en) * | 2014-04-16 | 2014-07-16 | 济源市万洋冶炼(集团)有限公司 | Method for treating copper dross |
| CN104946899A (en) * | 2015-06-03 | 2015-09-30 | 青海西豫有色金属有限公司 | Edge transmission top-blown converter and depleted sedimentation furnace combined lead dross treatment method |
| CN105132708A (en) * | 2015-10-12 | 2015-12-09 | 湖南金旺铋业股份有限公司 | Process method for sufficiently recycling precious metal from copper dross and copper matte |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113201654A (en) * | 2021-04-29 | 2021-08-03 | 江西金德铅业股份有限公司 | Novel process method for smelting copper dross in reverberatory furnace |
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