CN106282601A - Quick Oxidation, the method for remove impurity in a kind of reclaimed copper refine - Google Patents
Quick Oxidation, the method for remove impurity in a kind of reclaimed copper refine Download PDFInfo
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- CN106282601A CN106282601A CN201610854543.9A CN201610854543A CN106282601A CN 106282601 A CN106282601 A CN 106282601A CN 201610854543 A CN201610854543 A CN 201610854543A CN 106282601 A CN106282601 A CN 106282601A
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- 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
- C22B15/00—Obtaining copper
- C22B15/0026—Pyrometallurgy
- C22B15/006—Pyrometallurgy working up of molten copper, e.g. refining
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- Chemical & Material Sciences (AREA)
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- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses Quick Oxidation, the method for remove impurity in a kind of reclaimed copper refine; belong to reclaimed copper refining techniques field; cease fire after copper liquid is heated to 1,095 1105 DEG C, then copper liquid being carried out beats oxygen to 5600PPM, continues 10～30 minutes, and rapidly remove the scum silica frost of generation；Continue to beat oxygen after again copper liquid being heated to 1,190 1200 DEG C the most saturated, reject high-melting-point impurity and carry out subsequent operation；The method using the present invention, has the advantages such as thorough, energy-conservation, the shortening activity time of remove impurity, and compared with traditional method, the method for the present invention improves more than 6% for an impurities removing efficiency of pb, and an impurities removing efficiency for Sn improves more than 8.7%；Energy consumption reduces, and activity time shortens more than 85%.
Description
Technical field
The present invention relates to reclaimed copper refining techniques field, particularly relate to Quick Oxidation in a kind of reclaimed copper refine, remove impurity
Method.
Background technology
At present, during reclaimed copper refine produces low-oxygen copper pole, during aoxidizing, need continuous heating, maintain copper water temperature
Between spending 1150～1170 DEG C, carry out beating oxygen operation, to realize oxidation, the purpose of remove impurity.Traditional this oxidation, remove impurity side
, there is the shortcomings such as remove impurity thorough, energy consumption height, operation length in formula, after remove impurity of traditional approach, usual impurities the most significantly surpasses
Mark.In order to reject impurity, operation will continue to heat up, aoxidize, continuously repeat this operation.This operation often it is repeated once through measuring and calculating
Energy consumption can increase natural gas 200 cubes, liquid oxygen 400 cubes, and the copper purity of final products and resistance are physico because running counter to impurity
Learning character the most up to standard, single stove removal of impurity time is the longest up to 72 hours, forces and has to make raw-material Light absorbing impurty
Limit, i.e. higher to raw-material purity requirement.
Summary of the invention
The purpose of the present invention is that Quick Oxidation, the method for remove impurity in a kind of reclaimed copper refine of offer, above-mentioned to solve
Problem.
To achieve these goals, quick oxygen during the technical solution used in the present invention is such that a kind of reclaimed copper refine
Change, the method for remove impurity, cease fire after copper liquid is heated to 1095-1105 DEG C, then copper liquid carries out beat oxygen and continues to 5600PPM
10～30 minutes, and rapidly remove the scum silica frost of generation；Continue to beat oxygen after again copper liquid being heated to 1190-1200 DEG C the most saturated, pick
Except high-melting-point impurity carries out subsequent operation.
As preferred technical scheme: copper liquid is ceased fire after being heated to 1100 DEG C.
As preferred technical scheme: continue after again copper liquid being heated to 1200 DEG C to beat oxygen to saturated.
Present inventor passes through great many of experiments, and copper based on Fig. 1-oxygen phasor, finds: oxygen is dissolubility in copper liquid
Relevant with temperature and proportional in 1100～1200 DEG C of both intervals.In conventional processes, continuous heating during oxidation, dimension
Holding between copper coolant-temperature gage 1150～1170 DEG C, carry out beating oxygen operation, during a certain temperature, oxygen dissolubility in copper liquid is fixed,
When continuing to be passed through oxygen in copper liquid, meeting accelerating impurity degree of oxidation and speed can't too much increase copper liquid oxygen content；
For oxidizing temperature and beat oxygen amount, it is that the physical property according to impurities determines, oxidizing temperature and impurity
In copper liquid, dissolubility is directly proportional, and the oxidation of impurity mainly carries out oxygen transmission by copper liquid, therefore impurity content in raw material
The biggest required oxidizing temperature is the highest；Beat oxygen amount and directly affect the probability of oxidation of impurities, the impurity content therefore rejected also with beat
Oxygen amount is proportional；
It addition, add different slag former and dosage according to the chemical property of impurity.
The application ceases fire after preferably copper liquid being heated to 1100 DEG C, then copper liquid carries out beat oxygen and continues to 5600PPM
A period of time also takes rapidly the scum silica frost of generation off, because during by understanding 1100 DEG C in upper figure, in copper liquid, oxygen saturation is
5600PPM；Continue after the most again copper liquid being heated to 1200 DEG C to beat oxygen to saturated, because after temperature is more than 1200 DEG C, not rejecting
Impurity metal oxide to the greatest extent can produce decomposition, again becomes simple substance, then carries out subsequent operation.
After tested, after using the inventive method, single operation can remove the Sn of more than 92.7%, rejects more than 91.4%
Pb, in single stove cycle time to 8 hours.
Compared with prior art, it is an advantage of the current invention that: use the present invention method, have remove impurity thorough, energy-conservation, contracting
The advantages such as short activity time, compared with traditional method, the method for the present invention is for an impurities removing efficiency improve more than 6% of pb, right
An impurities removing efficiency in Sn improves more than 8.7%；Energy consumption reduces, and activity time shortens more than 85%.
Accompanying drawing explanation
Fig. 1 is copper-oxygen phasor.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described.
Embodiment 1: according to Fig. 1, Quick Oxidation, the method for remove impurity in a kind of reclaimed copper refine, treat that in remove impurity copper, impurity contains
Amount: Pb (lead): 901ppm, Sn (stannum): 636ppm, ceases fire after copper liquid is heated to 1095 DEG C, then carries out copper liquid beating oxygen extremely
15min after 5600PPM, and rapidly remove the scum silica frost of generation；Continue to beat oxygen after again copper liquid being heated to 1190 DEG C the most saturated, reject
High-melting-point impurity carries out subsequent operation.
The method using the present embodiment, after a remove impurity, impurity content in copper liquid: Pb:65ppm, Sn:55ppm, it is not necessary to
Additional energy；Activity time is up to 8h.
And use traditional method, and after a remove impurity, impurity content in copper liquid: Pb:120ppm, Sn:110ppm, the present invention's
Method improves more than 6% for an impurities removing efficiency of pb, and an impurities removing efficiency for Sn improves more than 8.7%；Energy consumption reduces, and
And activity time shortens more than 85%, concrete contrast is shown in Table 1
Table 1 traditional handicraft contrasts with the method for embodiment 1
Whether embodiment 2:[can compile the example of other impurity contents, uses other oxidizing temperature]
Quick Oxidation, the method for remove impurity in a kind of reclaimed copper refine, treat impurity content in remove impurity copper: Pb (lead): 856ppm,
Sn (stannum): 533ppm, cease fire after copper liquid is heated to 1100 DEG C, then copper liquid carry out beating oxygen to 15min after 5600PPM, and
Rapidly remove the scum silica frost of generation；Continue to beat oxygen after again copper liquid being heated to 1200 DEG C the most saturated, after rejecting high-melting-point impurity is carried out
Continuous operation, contrast is shown in Table 2.
Table 2 traditional handicraft contrasts with the method for embodiment 2
The method using the present embodiment, after a remove impurity, impurity content in copper liquid: Pb:63.5ppm, Sn:46.2ppm, no
Need additional energy；Activity time is up to 8h.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any amendment, equivalent and the improvement etc. made within god and principle, should be included within the scope of the present invention.
Claims (3)
1. Quick Oxidation, the method for remove impurity in a reclaimed copper refine, it is characterised in that: copper liquid is heated to 1095-1105 DEG C
Rear truce, then carries out beating oxygen and continues 10～30 minutes to 5600PPM, and rapidly remove the scum silica frost of generation copper liquid；Again will
It is the most saturated that copper liquid continues to beat oxygen after being heated to 1190-1200 DEG C, rejects high-melting-point impurity and carries out subsequent operation.
Quick Oxidation, the method for remove impurity in a kind of reclaimed copper refine the most according to claim 1, it is characterised in that: copper liquid
Cease fire after being heated to 1100 DEG C.
Quick Oxidation, the method for remove impurity in a kind of reclaimed copper refine the most according to claim 1, it is characterised in that: again will
Copper liquid continues after being heated to 1200 DEG C to beat oxygen to saturated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610854543.9A CN106282601B (en) | 2016-09-27 | 2016-09-27 | Quick Oxidation, the method for removal of impurities in a kind of regeneration copper refining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610854543.9A CN106282601B (en) | 2016-09-27 | 2016-09-27 | Quick Oxidation, the method for removal of impurities in a kind of regeneration copper refining |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106282601A true CN106282601A (en) | 2017-01-04 |
| CN106282601B CN106282601B (en) | 2018-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610854543.9A Active CN106282601B (en) | 2016-09-27 | 2016-09-27 | Quick Oxidation, the method for removal of impurities in a kind of regeneration copper refining |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006188738A (en) * | 2005-01-07 | 2006-07-20 | Mitsubishi Materials Corp | Method for smelting copper sulfide concentrate |
| CN101638724A (en) * | 2008-08-25 | 2010-02-03 | 中国瑞林工程技术有限公司 | Process and apparatus thereof for refining copper scraps by using nitrogen gas stirring and oxygen-enriched oxygen gas |
| CN103114208A (en) * | 2013-03-12 | 2013-05-22 | 绵阳铜鑫铜业有限公司 | Method for producing oxygen-free copper rod from secondary copper |
| CN103725897A (en) * | 2013-12-27 | 2014-04-16 | 中南大学 | Method for directly producing high-purity oxygen-free copper by pyrogenic process continuous refining of scrap copper |
-
2016
- 2016-09-27 CN CN201610854543.9A patent/CN106282601B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006188738A (en) * | 2005-01-07 | 2006-07-20 | Mitsubishi Materials Corp | Method for smelting copper sulfide concentrate |
| CN101638724A (en) * | 2008-08-25 | 2010-02-03 | 中国瑞林工程技术有限公司 | Process and apparatus thereof for refining copper scraps by using nitrogen gas stirring and oxygen-enriched oxygen gas |
| CN103114208A (en) * | 2013-03-12 | 2013-05-22 | 绵阳铜鑫铜业有限公司 | Method for producing oxygen-free copper rod from secondary copper |
| CN103725897A (en) * | 2013-12-27 | 2014-04-16 | 中南大学 | Method for directly producing high-purity oxygen-free copper by pyrogenic process continuous refining of scrap copper |
Non-Patent Citations (1)
| Title |
|---|
| 王翠芝: "粗铜火法精炼的技术的发展趋势", 《有色矿冶》 * |
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| CN106282601B (en) | 2018-05-11 |
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