CN104263962B - A kind of method extracting gold from magnetic iron ore - Google Patents
A kind of method extracting gold from magnetic iron ore Download PDFInfo
- Publication number
- CN104263962B CN104263962B CN201410490223.0A CN201410490223A CN104263962B CN 104263962 B CN104263962 B CN 104263962B CN 201410490223 A CN201410490223 A CN 201410490223A CN 104263962 B CN104263962 B CN 104263962B
- Authority
- CN
- China
- Prior art keywords
- iron ore
- magnetic iron
- solution
- gold
- filtering residue
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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 technical field of wet metallurgy, a kind of method extracting gold from magnetic iron ore, by in magnetic iron ore pre-treatment step, in solution, redox potential current potential is controlled, the redox potential in solution is made to maintain below 450mv, and then make Surface of Pyrrhotite material reached more than 85% by extrusion rate, also reduce the gold loss rate in pre-treatment step less than one thousandth simultaneously, and then ensure that extraction Au plasma rate from magnetic iron ore, also reduce the cost extracting gold, and reduce and extract the environmental pollution that gold process is brought.
Description
Technical field
The present invention relates to technical field of wet metallurgy, especially a kind of extraction gold from magnetic iron ore
Method.
Background technology
Gold, is accompanied by mineral and raw, such as sulfide gold mine, particularly may be divided into pyrite,
The ore resource such as magnetic iron ore, arsenical pyrite.Further, gold existing forms in Ore is main
Combine closely with iron mine for submicron-sized particulate, and this submicron-sized particulate be tiny to time micro-grade,
And then most gold is embedded in the molecular grating of Ore, form mutual solution with Ore；
This feature makes Ore when by mechanical lapping or pulverizing, is crushed to maximum fineness in time the most difficult
So that gold comes out from Ore, the especially gold in magnetic iron ore is attracted to crystal inside
Grid is more difficult to come out, and then is difficult to be formed the gold grain of Free Surface, cause taking
During solution leaching so that liquid medicine is difficult to contact with the surface of gold, the most just it is difficult to biochemical with golden hair
Learn reaction and dissolved.
To this end, there is researcher just by research, by exposed for the gold in sulfide ore outside,
I.e. by pre-treatment step by exposed for gold out, but when taking such measure, often use
Be that the technology of redox reaction is carried out, and then potential will be formed in the solution,
And according to general knowledge, different potential will draw different reaction results, or draw
Product and consumption of raw materials thing are the most different, and then how by Ore, especially magnetic Huang ferrum
Ore deposit Ore carries out pretreatment so that substantial amounts of gold is carried from magnetic iron ore by exposed out becoming
The crucial problem of depletion.
Based on above-mentioned technical problem, this researcher passes through substantial amounts of research and discovery, for yellow from magnetic
Iron mine extracts new selection and exploratory development that golden technique is carried out, for making in magnetic iron ore
Gold can substantial amounts of by exposed out, and then for follow-up leaching, be enriched with, separate offer basis,
And then reduce and from magnetic iron ore, extract the cost of gold provide a kind of new approaches.
Summary of the invention
In order to solve above-mentioned technical problem present in prior art, the present invention provides a kind of from magnetic
The method extracting gold in pyrite, has the Surface of Pyrrhotite material that can make, i.e. sulfur arsenic thing
Matter is reached more than 85% by extrusion rate, and the golden loss rate enabled in magnetic iron ore is less than
Millesimal feature.
It is achieved particular by techniques below scheme:
A kind of method extracting gold from magnetic iron ore, comprises the following steps:
(1) pretreatment: magnetic iron ore is placed in pulverizer and is crushed to 300-400 mesh, it is thus achieved that
Magnetic iron ore powder, and be placed in pretreatment pool, then it is added thereto to magnetic iron ore powder 1-3
The salpeter solution of times weight, and to use the mixing speed of agitator be 40-70r/min stir process
1-2h, then it is added thereto to the sodium nitrite of 0.7-0.9 times of weight of salpeter solution, and continue stirring
Process after 20-30min, be placed on standing during temperature is 60-70 DEG C and process 10-20min, then to
Wherein adding hydrogen peroxide, wherein the consumption of hydrogen peroxide is 1-1.3 times of nitrous acid weight, and
After control solution temperature is 50-60 DEG C, then using calomel electrode as reference electrode, measuring point solution
In potential, and the potential in solution is adjusted and controls at≤450mV so that it is
After sustained response 3-4h, it is thus achieved that pretreatment slip, stand-by；
(2) Leaching of Gold: by step 1) slip that obtains of pretreatment adds water process of sizing mixing, wherein
The amount ratio of slip and water is (2-4): (0.5-1.5), then is added thereto to molar concentration and is
The hydrochloric acid of 2mol/l, hydrochloric acid consumption is 1-2 times of slip weight, and with mixing speed is
After 30-60r/min stir process 20-30min, then be added thereto to slip weight 4-6% time
Calcium chlorate, and adjust after mixing speed is 80-120r/min stir process 1-3h, then adjust solution
Temperature be 70-90 DEG C, standing processes after 0.5-1.5h, filters, it is thus achieved that filtrate and filtering residue；
(3) enrichment: by step 2) filtrate that obtains is placed in reaction tank, and in reaction tank
Add the basic anionic resin solution of hydrochloric acid consumption 1-2 times, and use the mixing speed to be
After 50-60r/min stir process 1-3h, and it is carried out filtration treatment, it is thus achieved that filtrate a and filtering residue
A, filtrate a return step 1) it is circulated process, filtering residue a is stand-by；
(4) separate: filtering residue a is placed in parsing groove, and is added thereto to filtering residue a weight
The thiourea solution of 1-3 times, and to use mixing speed be 60-80r/min stir process 30-60min
After, then be added thereto to reducing agent and carry out reduction treatment, and when reduction treatment, adjust and resolve
Temperature in groove is 80-90 DEG C, with mixing speed for 80-90r/min stir process 20-30min
After, filter, it is thus achieved that filtrate b and filtering residue b, filtering residue b are bronze；Filtrate b returns step 1)
It is circulated process, can complete to extract gold from magnetic iron ore.
The concentration of described salpeter solution is 2-3mol/l.
Described sodium nitrite is the powder of 300-400 mesh.
Described calcium hypochlorite is the powder of 300-400 mesh.
Described basic anionic resin solution is-N (CH3)3OH。
Described-N (CH3)3The molar concentration of OH is 1-3mol/l.
The molar concentration of described thiourea solution is 1-2mol/l.
Compared with prior art, the technique effect of the present invention is embodied in:
1. by magnetic iron ore pre-treatment step, in solution, redox potential current potential enters
Row controls so that the redox potential in solution maintains below 450mv, and then
Make Surface of Pyrrhotite material reached more than 85% by extrusion rate, also reduce gold simultaneously and exist
The loss rate of pre-treatment step is less than one thousandth, and then ensure that extraction from magnetic iron ore
Au plasma rate, also reduce extract gold cost, and reduce extraction gold process brought
Environmental pollution.
2. the processing step extracting gold of the present invention is brief, with short production cycle, containing of preserving capital
Measure bigger so that Au plasma rate is higher, reduce the cost of gold extraction.
Detailed description of the invention
Below in conjunction with specific embodiment, technical scheme is further limited
Fixed, but claimed scope is not only limited to description.
Embodiment 1
A kind of method extracting gold from magnetic iron ore, comprises the following steps:
(1) pretreatment: magnetic iron ore is placed in pulverizer and is crushed to 300 mesh, it is thus achieved that magnetic is yellow
Iron Ore Powder, and be placed in pretreatment pool, then it is added thereto to 1 times of weight of magnetic iron ore powder
Salpeter solution, and to use the mixing speed of agitator be 40r/min stir process 1h, then to
Wherein add the sodium nitrite of 0.7 times of weight of salpeter solution, and after continuing stir process 20min,
Being placed on temperature is that in 60 DEG C, standing processes 10min, then is added thereto to hydrogen peroxide, its
The consumption of middle hydrogen peroxide is 1 times of nitrous acid weight, and controls after solution temperature is 50 DEG C,
Again using calomel electrode as reference electrode, the potential in measuring point solution, and by solution
Potential adjusts and controls at 450mV so that it is after sustained response 3h, it is thus achieved that pretreatment slip,
Stand-by；
(2) Leaching of Gold: by step 1) slip that obtains of pretreatment adds water process of sizing mixing, wherein
Slip is 2:0.5 with the amount ratio of water, then is added thereto to the hydrochloric acid that molar concentration is 2mol/l,
Hydrochloric acid consumption is 1 times of slip weight, and with mixing speed for 30r/min stir process 20min
After, then be added thereto to slip weight 4% calcium hypochlorite, and adjust mixing speed and be
After 80r/min stir process 1h, then the temperature adjusting solution is 70 DEG C, after standing processes 0.5h,
Filter, it is thus achieved that filtrate and filtering residue；
(3) enrichment: by step 2) filtrate that obtains is placed in reaction tank, and in reaction tank
Add the basic anionic resin solution of hydrochloric acid consumption 1 times, and to use mixing speed be 50r/min
After stir process 1h, and it is carried out filtration treatment, it is thus achieved that filtrate a and filtering residue a, filtrate a return
Return step 1) it is circulated process, filtering residue a is stand-by；
(4) separate: filtering residue a is placed in parsing groove, and is added thereto to the 1 of filtering residue a weight
Times thiourea solution, and after using mixing speed to be 60r/min stir process 30min, then to it
Middle addition reducing agent carries out reduction treatment, and when reduction treatment, adjusts the temperature resolved in groove
Be 80 DEG C, with mixing speed for 80r/min stir process 20min after, filter, it is thus achieved that filter
Liquid b and filtering residue b, filtering residue b are bronze；Filtrate b returns step 1) it is circulated process,
Complete to extract gold from magnetic iron ore.
The concentration of described salpeter solution is 2mol/l.
Described sodium nitrite is the powder of 300 mesh.
Described calcium hypochlorite is the powder of 300 mesh.
Described basic anionic resin solution is-N (CH3)3OH。
Described-N (CH3)3The molar concentration of OH is 1mol/l.
The molar concentration of described thiourea solution is 1mol/l.
Embodiment 2
A kind of method extracting gold from magnetic iron ore, comprises the following steps:
(1) pretreatment: magnetic iron ore is placed in pulverizer and is crushed to 400 mesh, it is thus achieved that magnetic is yellow
Iron Ore Powder, and be placed in pretreatment pool, then it is added thereto to 3 times of weight of magnetic iron ore powder
Salpeter solution, and to use the mixing speed of agitator be 70r/min stir process 2h, then to
Wherein add the sodium nitrite of 0.9 times of weight of salpeter solution, and after continuing stir process 30min,
Being placed on temperature is that in 70 DEG C, standing processes 20min, then is added thereto to hydrogen peroxide, its
The consumption of middle hydrogen peroxide is 1.3 times of nitrous acid weight, and controls after solution temperature is 60 DEG C,
Again using calomel electrode as reference electrode, the potential in measuring point solution, and by solution
Potential adjusts and controls at 440mV so that it is after sustained response 4h, it is thus achieved that pretreatment slip,
Stand-by；
(2) Leaching of Gold: by step 1) slip that obtains of pretreatment adds water process of sizing mixing, wherein
Slip is 4:1.5 with the amount ratio of water, then is added thereto to the hydrochloric acid that molar concentration is 2mol/l,
Hydrochloric acid consumption is 2 times of slip weight, and with mixing speed for 60r/min stir process 30min
After, then be added thereto to slip weight 6% calcium hypochlorite, and adjust mixing speed and be
After 120r/min stir process 3h, then the temperature adjusting solution is 90 DEG C, after standing processes 1.5h,
Filter, it is thus achieved that filtrate and filtering residue；
(3) enrichment: by step 2) filtrate that obtains is placed in reaction tank, and in reaction tank
Add the basic anionic resin solution of hydrochloric acid consumption 2 times, and to use mixing speed be 60r/min
After stir process 3h, and it is carried out filtration treatment, it is thus achieved that filtrate a and filtering residue a, filtrate a return
Return step 1) it is circulated process, filtering residue a is stand-by；
(4) separate: filtering residue a is placed in parsing groove, and is added thereto to the 3 of filtering residue a weight
Times thiourea solution, and after using mixing speed to be 80r/min stir process 60min, then to it
Middle addition reducing agent carries out reduction treatment, and when reduction treatment, adjusts the temperature resolved in groove
Be 90 DEG C, with mixing speed for 90r/min stir process 30min after, filter, it is thus achieved that filter
Liquid b and filtering residue b, filtering residue b are bronze；Filtrate b returns step 1) it is circulated process,
Complete to extract gold from magnetic iron ore.
The concentration of described salpeter solution is 3mol/l.
Described sodium nitrite is the powder of 400 mesh.
Described calcium hypochlorite is the powder of 400 mesh.
Described basic anionic resin solution is-N (CH3)3OH。
Described-N (CH3)3The molar concentration of OH is 3mol/l.
The molar concentration of described thiourea solution is 2mol/l.
Embodiment 3
A kind of method extracting gold from magnetic iron ore, comprises the following steps:
(1) pretreatment: magnetic iron ore is placed in pulverizer and is crushed to 350 mesh, it is thus achieved that magnetic is yellow
Iron Ore Powder, and be placed in pretreatment pool, then it is added thereto to 2 times of weight of magnetic iron ore powder
Salpeter solution, and to use the mixing speed of agitator be 55r/min stir process 1.5h, then to
Wherein add the sodium nitrite of 0.8 times of weight of salpeter solution, and after continuing stir process 25min,
Being placed on temperature is that in 65 DEG C, standing processes 15min, then is added thereto to hydrogen peroxide, its
The consumption of middle hydrogen peroxide is 1.1 times of nitrous acid weight, and controls after solution temperature is 55 DEG C,
Again using calomel electrode as reference electrode, the potential in measuring point solution, and by solution
Potential adjusts and controls at 430mV so that it is after sustained response 3.5h, it is thus achieved that pretreatment material
Slurry, stand-by；
(2) Leaching of Gold: by step 1) slip that obtains of pretreatment adds water process of sizing mixing, wherein
Slip is 3:1 with the amount ratio of water, then is added thereto to the hydrochloric acid that molar concentration is 2mol/l,
Hydrochloric acid consumption is 1.5 times of slip weight, and with mixing speed for 45r/min stir process 25min
After, then be added thereto to slip weight 5% calcium hypochlorite, and adjust mixing speed and be
After 100r/min stir process 2h, then the temperature adjusting solution is 80 DEG C, after standing processes 1h,
Filter, it is thus achieved that filtrate and filtering residue；
(3) enrichment: by step 2) filtrate that obtains is placed in reaction tank, and in reaction tank
Add the basic anionic resin solution of hydrochloric acid consumption 1.5 times, and use the mixing speed to be
After 55r/min stir process 2h, and it is carried out filtration treatment, it is thus achieved that filtrate a and filtering residue a, filter
Liquid a returns step 1) it is circulated process, filtering residue a is stand-by；
(4) separate: filtering residue a is placed in parsing groove, and is added thereto to the 2 of filtering residue a weight
Times thiourea solution, and after using mixing speed to be 70r/min stir process 45min, then to it
Middle addition reducing agent carries out reduction treatment, and when reduction treatment, adjusts the temperature resolved in groove
Be 85 DEG C, with mixing speed for 85r/min stir process 25min after, filter, it is thus achieved that filter
Liquid b and filtering residue b, filtering residue b are bronze；Filtrate b returns step 1) it is circulated process,
Complete to extract gold from magnetic iron ore.
The concentration of described salpeter solution is 2.5mol/l.
Described sodium nitrite is the powder of 350 mesh.
Described calcium hypochlorite is the powder of 370 mesh.
Described basic anionic resin solution is-N (CH3)3OH。
Described-N (CH3)3The molar concentration of OH is 2mol/l.
The molar concentration of described thiourea solution is 1.5mol/l.
Embodiment 4
A kind of method extracting gold from magnetic iron ore, comprises the following steps:
(1) pretreatment: magnetic iron ore is placed in pulverizer and is crushed to 370 mesh, it is thus achieved that magnetic is yellow
Iron Ore Powder, and be placed in pretreatment pool, then it is added thereto to 2.3 times of weights of magnetic iron ore powder
The salpeter solution of amount, and to use the mixing speed of agitator be 60r/min stir process 1.7h, then
It is added thereto to the sodium nitrite of 0.85 times of weight of salpeter solution, and continues stir process 27min
After, being placed on temperature is that in 69 DEG C, standing processes 13min, then is added thereto to hydrogen peroxide,
Wherein the consumption of hydrogen peroxide is 1.2 times of nitrous acid weight, and to control solution temperature be 59 DEG C
After, then using calomel electrode as reference electrode, the potential in measuring point solution, and by solution
In potential adjust and control at 400mV so that it is after sustained response 3.3h, it is thus achieved that locate in advance
Reason slip, stand-by；
(2) Leaching of Gold: by step 1) slip that obtains of pretreatment adds water process of sizing mixing, wherein
Slip is 3.3:1.3 with the amount ratio of water, then is added thereto to the hydrochloric acid that molar concentration is 2mol/l,
Hydrochloric acid consumption is 1.7 times of slip weight, and with mixing speed for 39r/min stir process 23min
After, then be added thereto to slip weight 5.3% calcium hypochlorite, and adjust mixing speed and be
After 110r/min stir process 2.5h, then the temperature adjusting solution is 75 DEG C, and standing processes 1.1h
After, filter, it is thus achieved that filtrate and filtering residue；
(3) enrichment: by step 2) filtrate that obtains is placed in reaction tank, and in reaction tank
Add the basic anionic resin solution of hydrochloric acid consumption 1.3 times, and use the mixing speed to be
After 57r/min stir process 1.7h, and it is carried out filtration treatment, it is thus achieved that filtrate a and filtering residue a,
Filtrate a returns step 1) it is circulated process, filtering residue a is stand-by；
(4) separate: filtering residue a is placed in parsing groove, and is added thereto to the 1.6 of filtering residue a weight
Times thiourea solution, and after using mixing speed to be 69r/min stir process 43min, then to it
Middle addition reducing agent carries out reduction treatment, and when reduction treatment, adjusts the temperature resolved in groove
Be 83 DEG C, with mixing speed for 87r/min stir process 29min after, filter, it is thus achieved that filter
Liquid b and filtering residue b, filtering residue b are bronze；Filtrate b returns step 1) it is circulated process,
Complete to extract gold from magnetic iron ore.
The concentration of described salpeter solution is 2.9mol/l.
Described sodium nitrite is the powder of 390 mesh.
Described calcium hypochlorite is the powder of 330 mesh.
Described basic anionic resin solution is-N (CH3)3OH。
Described-N (CH3)3The molar concentration of OH is 2.3mol/l.
The molar concentration of described thiourea solution is 1.7mol/l.
Claims (5)
1. the method extracting gold from magnetic iron ore, it is characterised in that comprise the following steps:
(1) pretreatment: magnetic iron ore is placed in pulverizer and is crushed to 300-400 mesh, it is thus achieved that magnetic iron ore
Powder, and be placed in pretreatment pool, then it is added thereto to the salpeter solution of magnetic iron ore 1-3 times of weight of powder,
And to use the mixing speed of agitator be 40-70r/min stir process 1-2h, then it is added thereto to salpeter solution
The sodium nitrite of 0.7-0.9 times of weight, and after continuing stir process 20-30min, being placed on temperature is
In 60-70 DEG C, standing processes 10-20min, then is added thereto to hydrogen peroxide, and wherein the consumption of hydrogen peroxide is
1-1.3 times of nitrous acid weight, and control after solution temperature is 50-60 DEG C, then using calomel electrode as reference electricity
Pole, the potential in measuring point solution, and the potential in solution is adjusted and controls at≤450mV,
After making its sustained response 3-4h, it is thus achieved that pretreatment slip, stand-by；
(2) Leaching of Gold: by step 1) slip that obtains of pretreatment adds water process of sizing mixing, wherein slip and water
Amount ratio be (2-4): (0.5-1.5), then be added thereto to the hydrochloric acid that molar concentration is 2mol/l, hydrochloric acid is used
Amount is 1-2 times of slip weight, and with mixing speed for 30-60r/min stir process 20-30min after, then to
Wherein add the calcium hypochlorite of 4-6% of slip weight, and to adjust mixing speed be 80-120r/min stir process
After 1-3h, then the temperature adjusting solution is 70-90 DEG C, and standing processes after 0.5-1.5h, filters, it is thus achieved that filtrate and
Filtering residue；
(3) enrichment: by step 2) filtrate that obtains is placed in reaction tank, and adds hydrochloric acid in reaction tank
The basic anionic resin solution of consumption 1-2 times, and to use mixing speed be 50-60r/min stir process 1-3h
After, and it is carried out filtration treatment, it is thus achieved that and filtrate a and filtering residue a, filtrate a return step 1) it is circulated place
Reason, filtering residue a is stand-by；
(4) separate: filtering residue a is placed in parsing groove, and is added thereto to the sulfur of 1-3 times of filtering residue a weight
Urea solution, and after using mixing speed to be 60-80r/min stir process 30-60min, then it is added thereto to reduction
Agent carries out reduction treatment, and when reduction treatment, adjusts the temperature resolved in groove and be 80-90 DEG C, to stir speed
After degree is for 80-90r/min stir process 20-30min, filtering, it is thus achieved that filtrate b and filtering residue b, filtering residue b is
Bronze；Filtrate b returns step 1) it is circulated process, can complete to extract gold from magnetic iron ore.
2. the method extracting gold as claimed in claim 1 from magnetic iron ore, it is characterised in that described
The concentration of salpeter solution is 2-3mol/l.
3. the method extracting gold as claimed in claim 1 from magnetic iron ore, it is characterised in that described
Sodium nitrite is the powder of 300-400 mesh.
4. the method extracting gold as claimed in claim 1 from magnetic iron ore, it is characterised in that described
Calcium hypochlorite is the powder of 300-400 mesh.
5. the method extracting gold as claimed in claim 1 from magnetic iron ore, it is characterised in that described
The molar concentration of thiourea solution is 1-2mol/l.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410490223.0A CN104263962B (en) | 2014-09-23 | 2014-09-23 | A kind of method extracting gold from magnetic iron ore |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410490223.0A CN104263962B (en) | 2014-09-23 | 2014-09-23 | A kind of method extracting gold from magnetic iron ore |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104263962A CN104263962A (en) | 2015-01-07 |
| CN104263962B true CN104263962B (en) | 2016-08-17 |
Family
ID=52155535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410490223.0A Active CN104263962B (en) | 2014-09-23 | 2014-09-23 | A kind of method extracting gold from magnetic iron ore |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104263962B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106044841A (en) * | 2016-08-17 | 2016-10-26 | 太仓沪试试剂有限公司 | Preparation method of chloroauric acid |
| CN106167853B (en) * | 2016-08-24 | 2019-06-18 | 铜仁市万山区盛和矿业有限责任公司 | A kind of ultrasonic extraction process of gold |
| CN106350670A (en) * | 2016-08-24 | 2017-01-25 | 铜仁市万山区盛和矿业有限责任公司 | Treatment process of pyrrhotite |
| CN106319239B (en) * | 2016-08-24 | 2018-06-29 | 铜仁市万山区盛和矿业有限责任公司 | A kind of extracting method of arsenical pyrite |
| CN106222436A (en) * | 2016-08-24 | 2016-12-14 | 铜仁市万山区盛和矿业有限责任公司 | A kind of microwave extract method of magnetic iron ore |
| AU2018315046B9 (en) * | 2017-08-08 | 2022-07-28 | Cobalt Blue Holdings Ltd | Recovery of metals from pyrite |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0119685A1 (en) * | 1983-01-18 | 1984-09-26 | Morris John Vreugde Beattie | Hydrometallurgical arsenopyrite process |
| CN1031566A (en) * | 1987-06-22 | 1989-03-08 | 中国科学院化工冶金研究所 | Catalytic oxidation acid method pretreatment for hard smelting aurin mineral |
| US5013359A (en) * | 1988-10-31 | 1991-05-07 | Hydrochem Developments Ltd. | Process for recovering gold from refractory sulfidic ores |
| US5425800A (en) * | 1993-10-26 | 1995-06-20 | Fmc Corporation | Recovery of precious metal values from refractory ores |
| CN1147537A (en) * | 1995-10-12 | 1997-04-16 | 李恭贵 | Iron oxide red producing process by smelting pyrite |
| CN1818098A (en) * | 2006-03-14 | 2006-08-16 | 吉林大学 | Comprehensive recovery for bullion ore with various metals |
| CN101230418A (en) * | 2007-01-25 | 2008-07-30 | 冯云善 | Gold concentration method for vertical-groove vein gold seam gold mining |
| CN102560126A (en) * | 2012-02-27 | 2012-07-11 | 中南大学 | Method for extracting gold and/or silver from sulfuric acid slag |
| CN103343224A (en) * | 2013-07-29 | 2013-10-09 | 沈少波 | Method for quickly extracting gold from gold-containing material |
-
2014
- 2014-09-23 CN CN201410490223.0A patent/CN104263962B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0119685A1 (en) * | 1983-01-18 | 1984-09-26 | Morris John Vreugde Beattie | Hydrometallurgical arsenopyrite process |
| CN1031566A (en) * | 1987-06-22 | 1989-03-08 | 中国科学院化工冶金研究所 | Catalytic oxidation acid method pretreatment for hard smelting aurin mineral |
| US5013359A (en) * | 1988-10-31 | 1991-05-07 | Hydrochem Developments Ltd. | Process for recovering gold from refractory sulfidic ores |
| US5425800A (en) * | 1993-10-26 | 1995-06-20 | Fmc Corporation | Recovery of precious metal values from refractory ores |
| CN1147537A (en) * | 1995-10-12 | 1997-04-16 | 李恭贵 | Iron oxide red producing process by smelting pyrite |
| CN1818098A (en) * | 2006-03-14 | 2006-08-16 | 吉林大学 | Comprehensive recovery for bullion ore with various metals |
| CN101230418A (en) * | 2007-01-25 | 2008-07-30 | 冯云善 | Gold concentration method for vertical-groove vein gold seam gold mining |
| CN102560126A (en) * | 2012-02-27 | 2012-07-11 | 中南大学 | Method for extracting gold and/or silver from sulfuric acid slag |
| CN103343224A (en) * | 2013-07-29 | 2013-10-09 | 沈少波 | Method for quickly extracting gold from gold-containing material |
Non-Patent Citations (3)
| Title |
|---|
| 砷黄铁矿在催化氧化酸浸体系中的反应;魏晓娜，夏光祥;《中国有色金属学报》;19940630;第4卷(第02期);31-33 * |
| 超细磨―树脂矿浆法从黄铁矿烧渣中回收金的研究;危俊婷等;《黄金》;20020430;第23卷(第04期);34-38 * |
| 高砷硫金矿的预处理;鲍利军等;《贵金属》;20030930(第03期);61-66 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104263962A (en) | 2015-01-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104263962B (en) | A kind of method extracting gold from magnetic iron ore | |
| CN101429860A (en) | Desalination little-reagent ground-dipping uranium extraction method | |
| CN103482680B (en) | A kind of technique of being produced nano zine oxide by secondary zinc oxide | |
| CN104530254B (en) | A kind of method that application brown alga produces sodium alginate | |
| CN106350670A (en) | Treatment process of pyrrhotite | |
| CN102583264A (en) | Method for leaching selenium in acid mud by using sodium sulfite | |
| CN106432751A (en) | Device and method for extracting humic acid from decomposed coal | |
| CN101418375A (en) | Liquid membrane extraction of gold-diaphragm electrolysis extraction of gold process | |
| CN106853959A (en) | A kind of method that use impure selenium wet method prepares high purity selenium | |
| CN104263961B (en) | A kind of method extracting gold from pyrite | |
| CN106222436A (en) | A kind of microwave extract method of magnetic iron ore | |
| CN103466713A (en) | Method for preparing manganese sulfate monohydrate with low-grade manganese ore through primary crystallization by high-pressure method | |
| CN104263963B (en) | A kind of method extracting gold from arsenical pyrite | |
| CN106745318A (en) | A kind of method of use iron vitriol slag one-step synthesis magnetic ferroferric oxide | |
| CN105648232A (en) | Method for refining gold by using I2 and KI | |
| CN103435016B (en) | A kind of method extracting selenium from acid mud | |
| CN105400968B (en) | A kind of low-cost high-efficiency precipitation method | |
| CN102557127B (en) | Method for reducing leaching titanium solution by utilizing trivalent titanium | |
| CN104263942B (en) | A kind of useless mercury catalyst method of comprehensive utilization | |
| CN104294058B (en) | A kind of processing method of high-sulfur high-arsenic carbon material gold mine | |
| CN103693830A (en) | Process for treating free alkali in red mud by microorganisms | |
| CN102560137B (en) | Refining process of alloyed gold | |
| CN105668641A (en) | Method for preparing manganese sulfate solution by directly roasting pyrolusite with sulfuric acid | |
| CN106282607B (en) | One kind utilizes V5+Method of the extracting and enriching containing vanadium solution | |
| CN205152044U (en) | A integration complete sets that is used for that sludge dewatering is concentrated to handle basic technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |