CN107419089A - The method of low-grade high impurity ore magnetizing roast removal of impurities - Google Patents
The method of low-grade high impurity ore magnetizing roast removal of impurities Download PDFInfo
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- CN107419089A CN107419089A CN201710253349.XA CN201710253349A CN107419089A CN 107419089 A CN107419089 A CN 107419089A CN 201710253349 A CN201710253349 A CN 201710253349A CN 107419089 A CN107419089 A CN 107419089A
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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
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/02—Roasting processes
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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
- C22B11/00—Obtaining noble metals
- C22B11/04—Obtaining noble metals by wet processes
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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
- C22B13/00—Obtaining lead
- C22B13/04—Obtaining lead by wet processes
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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
- C22B15/0063—Hydrometallurgy
- C22B15/0084—Treating solutions
- C22B15/0089—Treating solutions by chemical methods
- C22B15/0091—Treating solutions by chemical methods by cementation
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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
- C22B25/00—Obtaining tin
- C22B25/04—Obtaining tin by wet 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
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
- C22B3/12—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic alkaline solutions
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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
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/44—Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
- C22B3/46—Treatment or purification of solutions, e.g. obtained by leaching by chemical processes by substitution, e.g. by cementation
-
- 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
- C22B34/00—Obtaining refractory metals
- C22B34/30—Obtaining chromium, molybdenum or tungsten
- C22B34/36—Obtaining tungsten
-
- 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
- C22B47/00—Obtaining manganese
-
- 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
- C22B58/00—Obtaining gallium or indium
-
- 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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Abstract
The method of low-grade high impurity ore magnetizing roast removal of impurities, calcium chloride is added after ore is crushed and smelts coke progress magnetizing roast；It will be put into again after the ore grinding after roasting and leach pond, be hydrogenated with sodium oxide molybdena and hydrogen peroxide carries out Strong oxdiative, go the removal of impurity, be purified ore；Purification ore is added in HTHP leaching axe afterwards and purified, leachate is placed in displacement pool, calcium chloride is added, by tin, lead, manganese element replacement extraction, is extracted as chlorination tin mixture；Supernatant after once replacing is returned into displacement pool, adds iron filings, copper, tungsten, antimony element are subjected to replacement extraction, are extracted as the sponge copper mixture of tungstenic, antimony；The supernatant after twice replaced is finally returned into displacement pool, adds zinc silk, gold, silver, phosphide element are subjected to replacement extraction, are extracted as sponge indium.The present invention can be substantially cleared by the impurity in ore, and the valuable metal for extracting to obtain can be directly used for smelting production, greatly reduce the waste of resource, while mitigate environmental pollution.
Description
Technical field
The present invention relates to ore smelting technical field, and in particular to the impurity-removing method technology neck of low-grade high impurity ore
Domain.
Background technology
Current most of mines or ore smelting enterprise, because production process can not by the harmful element arsenic in ore, sulphur,
The impurity such as phosphorus, silicon, magnesium, calcium are purged, and cause the ore of a large amount of low-grade high impurity can not carry out smelting production, Zhi Nengdui again
Product does not have to, and both occupied ground, waste of resource, also caused to have a strong impact on to ecological environment, had aggravated ore processing industry highly energy-consuming
The problem of low output.Prior art there is no ability to the grade of ore raising of these high impurity, and in the market is also without ripe enough
Technology can solve such difficult impurities removal for smelting ore of difficult choosing.
The content of the invention
Present invention aims to solve the deficiencies of the prior art, and provides a kind of one kind can be magnetized low-grade high impurity ore
Roasting removal of impurities, extracts valuable element, so as to get metal content reach the method for smelting industry raw material standard requirement.
The purpose of the present invention is achieved through the following technical solutions：
The method of low-grade high impurity ore magnetizing roast removal of impurities, step are as follows：
(1) low-grade high impurity ore is crushed, then adds ore quality 0.8%~1.2% in mass ratio
The smelting coke of calcium chloride and ore quality 5.5%~6.5% be put into rotary kiln carry out magnetizing roast, sintering temperature be 900~
1050℃；
(2) it is put into after the ore after roasting is ground and leaches pond, then adds mineral powder quality 4.5% in mass ratio
~5.5% sodium hydroxide, the hydrogen peroxide of mineral powder quality 2.8%~3.2%, 60~80 DEG C of progress Strong oxdiatives are heated up to,
Impurity in ore is removed, is purified ore；
(3) the purification ore that impurity is eliminated through step (2) is added in the leaching axe of HTHP and purified, leached
The leaching pressure of axe is 0.3MPa, and extraction temperature is 150~200 DEG C；Leachate is placed in displacement pool, adds purification ore quality
3.5%~4.5% calcium chloride, the tin in leachate, lead, manganese element are subjected to replacement extraction, are extracted as chlorination tin mixture；
Then the supernatant after once replacing is returned into displacement pool, adds the iron filings of purification ore quality 0.4%~0.6%, will be upper
Copper, tungsten, antimony element in clear liquid carry out replacement extraction, are extracted as the sponge copper mixture of tungstenic, antimony；Afterwards again will be through secondary Pin
Supernatant after changing returns to displacement pool, the zinc silk of purification ore quality 0.6%~1% is added, by the gold, silver in supernatant, indium
Element carries out replacement extraction, is extracted as sponge indium.
Leached mud after the completion of being handled through step (3) can also be heated up to 80-95 DEG C of secondary reduction iron powder by the present invention, be obtained
To the Iron concentrate of iron-holder 85~90%.
Impurity in step (2) the of the present invention ore includes the one or more in arsenic, sulphur, phosphorus, silicon, magnesium, calcium.
Low-grade high impurity ore is handled using the inventive method, can be by the impurity in ore harmful element for example arsenic, sulphur,
Phosphorus, silicon, magnesium, calcium are substantially cleared, reach relevant national standard requirement.Extracted after processing obtained valuable metal for example gold, silver, copper,
Iron, tin, lead, tungsten, antimony, indium, manganese etc. can be directly used for smelting production, greatly reduce the waste of resource, also reduce smelting row
The production cost of industry, economic benefit is improved, while alleviate the pollution to environment.
Embodiment
Present disclosure is expanded on further below by embodiment.
Embodiment 1
The method of low-grade high impurity iron ore magnetizing roast removal of impurities, step are as follows：
(1) it is to contain Fe 20~40%, Cu 1.3~2.6%, Zn 2~7%, S 0.8~2%, As by main component
1~3%, Si8~16%, Mn 2~6%, the g tons of Au 0.05~0.18, the g tons of Ag 0.2~0.7, Pb 1~2% it is low
Rotary kiln is added after the high impurity iron ore powder of grade is broken, then adds the calcium chloride and iron ore of quality of iron ore 1% in mass ratio
The smelting coke of quality 6% carries out magnetizing roast, and sintering temperature is 900 DEG C；
(2) it is put into after the ore after roasting is ground and leaches pond, then adds mineral powder quality 4.5% in mass ratio
Sodium hydroxide, the hydrogen peroxide of mineral powder quality 3%, be heated up to 70 DEG C progress Strong oxdiatives, by the arsenic impurities in ore, sulphur,
Phosphorus, silicon, magnesium, calcium etc. remove, and are purified ore；
(3) the purification ore that impurity is eliminated through step (2) is added in the leaching axe of HTHP and purified, leached
The leaching pressure of axe is 0.3MPa, and extraction temperature is 180 DEG C；Leachate is placed in displacement pool, adds purification ore quality 4.5%
Calcium chloride, the tin in leachate, lead, manganese element are subjected to replacement extraction, are extracted as chlorination tin mixture, for chemical industry, industry
Use；Then the supernatant after once replacing is returned into displacement pool, the iron filings of purification ore quality 0.5% is added, by supernatant
Copper, tungsten, antimony element in liquid carry out replacement extraction, are extracted as the sponge copper mixture of tungstenic, antimony, specialize in the original of purification smeltery
Material；The supernatant after twice replaced is returned into displacement pool again afterwards, the zinc silk of purification ore quality 0.8% is added, by supernatant
The elements such as gold, silver, indium in liquid carry out replacement extraction, are extracted as sponge indium, specialize in precious metal smelting factory and carry out decomposition smelting.
(4) leached mud after the completion of being handled through step (3) is heated up to 80-95 DEG C of secondary reduction iron powder, obtains iron-holder
90% Iron concentrate.
Embodiment 2
The method of low-grade high impurity iron ore magnetizing roast removal of impurities, step are as follows：
(1) by main component be containing Sn 0.1~0.6%, Fe6~25%, Cu 0.4~2%, As 0.6~1.2%,
Si 2~23%, Ca 4~7%, Mg 3~8%, Sb 0.2~0.6%, the g tons of In 0.05~0.09, Au 0.07-0.09
The low-grade high Impurity Sn ore of g ton crushes, and then adds the calcium chloride and tin ore of tin ore quality 0.8% in mass ratio
The smelting coke of quality 5.5% is put into rotary kiln and carries out magnetizing roast, and sintering temperature is 1000 DEG C；
(2) it is put into after the ore after roasting is ground and leaches pond, then adds mineral powder quality 5% in mass ratio
The hydrogen peroxide of sodium hydroxide, mineral powder quality 2.8%, be heated up to 80 DEG C progress Strong oxdiatives, by the arsenic impurities in ore, sulphur,
Phosphorus, silicon, magnesium, calcium etc. remove, and are purified ore；
(3) the purification ore that impurity is eliminated through step (2) is added in the leaching axe of HTHP and purified, leached
The leaching pressure of axe is 0.3MPa, and extraction temperature is 150 DEG C；Leachate is placed in displacement pool, adds purification ore quality 4%
Calcium chloride, the tin in leachate, lead, manganese element are subjected to replacement extraction, are extracted as chlorination tin mixture, for chemical industry, industry makes
With；Then the supernatant after once replacing is returned into displacement pool, the iron filings of purification ore quality 0.4% is added, by supernatant
In copper, tungsten, antimony element replacement extraction, be extracted as the sponge copper mixture of tungsten, antimony, specialize in the raw material of purification smeltery；Afterwards
Again by after twice replaced supernatant return displacement pool, add purification ore quality 1% zinc silk, by the gold in supernatant,
The elements such as silver, indium carry out replacement extraction, are extracted as sponge indium, specialize in precious metal smelting factory and carry out decomposition smelting；
(4) leached mud after the completion of being handled through step (3) is heated up to 95 DEG C of secondary reduction iron powders, obtains iron-holder 85%
Iron concentrate.
Embodiment 3
The method of low-grade high impurity iron ore magnetizing roast removal of impurities, step are as follows：
(1) by main component be containing Mn 10~20%, Fe 12~20%, Si 8~16%, Cu 0.4~0.9%,
Sn 0.1~0.3%, Mg 0.9~1.5%, Ca 8~12%, Zn 0.9~1.5% low-grade high impurity manganese ore crush,
Then the calcium chloride of manganese ore quality 1.2% is added in mass ratio and the smelting coke of manganese ore quality 6.5% is put into rotary kiln and entered
Row magnetizing roast, sintering temperature are 1050 DEG C；
(2) it is put into after the ore after roasting is ground and leaches pond, then adds mineral powder quality 5.5% in mass ratio
Sodium hydroxide, the hydrogen peroxide of mineral powder quality 3.2%, be heated up to 60 DEG C progress Strong oxdiatives, by the arsenic impurities in ore,
Sulphur, phosphorus, silicon, magnesium, calcium etc. remove, and are purified ore；
(3) the purification ore that impurity is eliminated through step (2) is added in the leaching axe of HTHP and purified, leached
The leaching pressure of axe is 0.3MPa, and extraction temperature is 200 DEG C；Leachate is placed in displacement pool, adds purification ore quality 3.5%
Calcium chloride, the tin in leachate, lead, manganese element are subjected to replacement extraction, are extracted as chlorination tin mixture, for chemical industry, industry
Use；Then the supernatant after once replacing is returned into displacement pool, the iron filings of purification ore quality 0.6% is added, by supernatant
Copper, tungsten, antimony element in liquid carry out replacement extraction, are extracted as the sponge copper mixture of tungsten, antimony, specialize in the original of purification smeltery
Material；The supernatant after twice replaced is returned into displacement pool again afterwards, the zinc silk of purification ore quality 0.6% is added, by supernatant
The element such as gold, silver, indium in liquid line replacement extracts, and is extracted as sponge indium, specializes in precious metal smelting factory and carry out decomposition smelting；
(4) leached mud after the completion of being handled through step (3) is heated up to 80-95 DEG C of secondary reduction iron powder, obtains iron-holder
88% Iron concentrate.
Embodiment 4
The method of low-grade high impurity iron ore magnetizing roast removal of impurities, step are as follows：
(1) by main component be containing Cu 0.6~2.7%, Si 9~23%, Sn 0.2~0.8%, Au 0.06~
0.09 g ton, the g tons of Ag 0.02~0.08, the g tons of In 0.03~0.08, Fe 11~19%, As 0.8~1.6%, S 1
~3%, Sb 1~2%, Pb 0.5~1% low-grade high impurity copper ore crush and add rotary kiln, then add in mass ratio
The calcium chloride of Copper Ores quality 1% and the smelting coke of Copper Ores quality 6% carry out magnetizing roast, and sintering temperature is 1000~
1050℃；
(2) it is put into after the ore after roasting is ground and leaches pond, then adds mineral powder quality 5% in mass ratio
The hydrogen peroxide of sodium hydroxide, mineral powder quality 3%, be heated up to 60~80 DEG C progress Strong oxdiatives, by the arsenic impurities in ore,
Sulphur, phosphorus, silicon, magnesium, calcium etc. remove, and are purified ore；
(3) the purification ore that impurity is eliminated through step (2) is added in the leaching axe of HTHP and purified, leached
The leaching pressure of axe is 0.3MPa, and extraction temperature is 150~200 DEG C；Leachate is placed in displacement pool, adds purification ore quality
4% calcium chloride, the tin in leachate, lead, manganese element are subjected to replacement extraction, chlorination tin mixture is extracted as, for chemical industry, work
Industry uses；Then the supernatant after once replacing is returned into displacement pool, adds the iron filings of purification ore quality 0.5%, will be upper
Copper, tungsten, antimony element in clear liquid carry out replacement extraction, are extracted as the sponge copper mixture of tungsten, antimony etc., specialize in purification smeltery
Raw material；The supernatant after twice replaced is returned into displacement pool again afterwards, adds the zinc silk of purification ore quality 0.8%, will be upper
The elements such as gold, silver, indium in clear liquid carry out replacement extraction, are extracted as sponge indium, specialize in precious metal smelting factory and carry out decomposition smelting.
(4) leached mud after the completion of being handled through step (3) is heated up to 80-95 DEG C of secondary reduction iron powder, obtains iron-holder
86% Iron concentrate.
Claims (3)
1. the method for low-grade high impurity ore magnetizing roast removal of impurities, it is characterised in that step is as follows：
(1) low-grade high impurity ore is crushed, then adds the chlorination of ore quality 0.8%~1.2% in mass ratio
The smelting coke of calcium and ore quality 5.5%~6.5% is put into rotary kiln and carries out magnetizing roast, and sintering temperature is 900~1050 DEG C；
(2) be put into after the ore after roasting is ground and leach pond, then add in mass ratio mineral powder quality 4.5%~
5.5% sodium hydroxide, the hydrogen peroxide of mineral powder quality 2.8%~3.2%, 60~80 DEG C of progress Strong oxdiatives are heated up to, will
Impurity in ore removes, and is purified ore；
(3) the purification ore that impurity is eliminated through step (2) is added in the leaching axe of HTHP and purified, leach axe
Leaching pressure is 0.3MPa, and extraction temperature is 150~200 DEG C；Leachate is placed in displacement pool, adds purification ore quality
3.5%~4.5% calcium chloride, the tin in leachate, lead, manganese element are subjected to replacement extraction, are extracted as chlorination tin mixture；
Then the supernatant after once replacing is returned into displacement pool, adds the iron filings of purification ore quality 0.4%~0.6%, will be upper
Copper, tungsten, antimony element in clear liquid carry out replacement extraction, are extracted as the sponge copper mixture of tungstenic, antimony；Afterwards again will be through secondary Pin
Supernatant after changing returns to displacement pool, the zinc silk of purification ore quality 0.6%~1% is added, by the gold, silver in supernatant, indium
Element carries out replacement extraction, is extracted as sponge indium.
2. the method for low-grade high impurity ore magnetizing roast removal of impurities according to claim 1, it is characterised in that will be through step
Suddenly the leached mud after the completion of (3) processing is heated up to 80-95 DEG C of secondary reduction iron powder, obtains the Iron concentrate of iron-holder 85~90%.
3. the method for low-grade high impurity ore magnetizing roast removal of impurities according to claim 1 or 2, it is characterised in that on
The impurity stated in step (2) described ore includes the one or more in arsenic, sulphur, phosphorus, silicon, magnesium, calcium.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101914691A (en) * | 2010-08-31 | 2010-12-15 | 中南大学 | Method for extracting nickel and cobalt by processing poor nickel laterite |
| CN102912124A (en) * | 2012-11-09 | 2013-02-06 | 连云港市东茂矿业有限公司 | Method for recovering nickel, cobalt, manganese and iron by hydrochloric acid leaching of nickel oxide ore |
| CN102936649A (en) * | 2012-11-09 | 2013-02-20 | 连云港市东茂矿业有限公司 | Method for recovering nickel, cobalt, manganese and iron by roasting and leaching nickel oxide ore |
| CN103146911A (en) * | 2013-03-27 | 2013-06-12 | 西南科技大学 | Beneficiation method for treating combined copper oxide ore and recovering associated valuable metals |
| CN103374656A (en) * | 2012-04-27 | 2013-10-30 | 毛黎生 | Technique for recycling nickel, ferrum and cobalt from nickel oxide ore |
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|---|---|---|---|---|
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| CN103374656A (en) * | 2012-04-27 | 2013-10-30 | 毛黎生 | Technique for recycling nickel, ferrum and cobalt from nickel oxide ore |
| CN102912124A (en) * | 2012-11-09 | 2013-02-06 | 连云港市东茂矿业有限公司 | Method for recovering nickel, cobalt, manganese and iron by hydrochloric acid leaching of nickel oxide ore |
| CN102936649A (en) * | 2012-11-09 | 2013-02-20 | 连云港市东茂矿业有限公司 | Method for recovering nickel, cobalt, manganese and iron by roasting and leaching nickel oxide ore |
| CN103146911A (en) * | 2013-03-27 | 2013-06-12 | 西南科技大学 | Beneficiation method for treating combined copper oxide ore and recovering associated valuable metals |
| CN104232882A (en) * | 2014-09-28 | 2014-12-24 | 毛黎生 | Technology for recovering nickel, cobalt and iron from nickel oxide ores through high-temperature chlorinating volatilization |
| CN104263909A (en) * | 2014-09-28 | 2015-01-07 | 毛黎生 | Process for recovering nickel, cobalt and iron from nickel oxide ores by virtue of roasting and water leaching |
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| 张泾生: "《现代选矿技术手册 第2册 浮选与化学选矿》", 28 February 2011, 冶金工业出版社 * |
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