CN104874471B - A kind of technique of low-grade gold antimony tungsten paragenetic raw ore Mineral separation - Google Patents
A kind of technique of low-grade gold antimony tungsten paragenetic raw ore Mineral separation Download PDFInfo
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Abstract
The invention discloses a kind of technique of low-grade gold antimony tungsten paragenetic raw ore Mineral separation, the technique produces three kinds of gold containing material of high-quality, antimony gold bulk concentrate, tungsten concentrate products with more low-grade golden antimony tungsten paragenetic raw ore by the ore-dressing technique of " stage grinding; stage grading; float joint again ", and the rate of recovery of gold, antimony and tungsten respectively reaches 88% or so, 96.5% or so, 62.5% or so；And it is environmental friendly, the comprehensive utilization of mineral resources is realized, it is good in economic efficiency and industrial truly feasible.
Description
Technical field
The present invention relates to a kind of technique of low-grade gold antimony tungsten paragenetic raw ore Mineral separation, belong to technical field of beneficiation.
Background technology
Xiangxi Gold Mine is that China exploits more early, larger golden antimony tungsten mines, and gold, antimony, tungsten associated metal mineral products are in layer
Shape vein deposit, essential mineral have rusty gold, stibnite, scheelite, and gangue is based on quartz.The fertile small stream ore deposit in the western Hunan is to develop most
Early mining area, raw ore essential mineral have rusty gold, stibnite, scheelite, its gold grade 4.08g/t, antimony grade 1.71%, tungsten product
Position (tungstic acid) 0.206%, in addition to wolframite, pyrite, zincblende, mispickel, galena, chalcopyrite, tetrahedrite, brightness molybdenum
Ore deposit, limonite etc..Raw ore is passed through three sections of open circuit mucks by existing process, two sections of closed circuit grinding comminutions to -0.4mm, is then selected in,
Using three kinds of combined process flow output mercury gold, antimony gold concentrate and scheelite gold mine products of gravity treatment, flotation and amalgamation.Gold, antimony, three oxygen
The rate of recovery for changing tungsten respectively reaches 86.39%, 96.62%, 75.06%.But as the continuous exploitation of fertile small stream ore deposit, mineral resources are more next
It is fewer, it is newly developed at present go out fish mountain mining area, antimony grade and tungsten grade are all than fertile small stream in the golden antimony tungsten paragenetic raw ore in the mining area
The head grade of ore deposit is much lower, and particularly the ratio accounted for of wolframite is big, using original technique be difficult to realize gold,
The high efficiente callback of tungsten and antimony.Fish mountain ore compared with the ore properties of fertile small stream ore deposit section, have following four it is obvious the characteristics of：
(1) fine size of rusty gold, substantially without visible gold, and fertile small stream ore has nearly 30% visible gold.(2) sulfide is higher than containing gold
Fertile small stream ore (fish mountain ore is 8.85g/t, fertile small stream is 1.17g/t).(3) black, white tungsten ratio is much larger than fertile small stream ore (fish
38%) the black tungsten in mountain accounts for.(4) fish mountain ore gold, antimony, tungsten grade are respectively 3.6~4.0g/t, 0.2%~0.4%, 0.12%
~0.14%, relatively fertile small stream ore is low.
The content of the invention
The defects of existing for prior art, the purpose of the present invention are to be to provide one kind from low-grade gold antimony tungsten symbiosis original
High efficiente callback gold, antimony and tungsten in ore deposit, and obtain high-quality gold containing material, antimony gold bulk concentrate, the technique of tungsten concentrate, the technique ring
Protect, realize the comprehensive utilization of mineral resources, it is good in economic efficiency.
In order to realize the technical purpose of the present invention, the invention provides a kind of low-grade gold antimony tungsten paragenetic raw ore Mineral separation
Technique, the technique is that underground is gone out into grand raw ore to crush by two section of one closed circuit+washup+picking technique, and breaking ores are through one section
After grind grading, into roughing table, table concentrate, shaking table chats and shaking table mine tailing are sub-elected；Table concentrate entrance is carried between gold
Operation, produce gold containing material；Shaking table chats enters groove and floats operation, and production groove floats antimony gold concentrate；Shaking table mine tailing divides into secondary grinding
Level, flotation operation, produce tungsten concentrate；Described goes out gold content≤5.2g/t in grand raw ore, antimony grade≤1.319%, tungsten grade
≤ 0.143%, tungsten is in terms of tungstic acid, wherein white tungsten accounts for 69%~83%, black tungsten accounts for 17%~31%.
The technique of the low-grade gold antimony tungsten paragenetic raw ore Mineral separation of the present invention also includes following preferred scheme：
Primary grinding classification forms closed circuit grinding using rod mill and spiral classifier in preferable scheme, and grader overflows
Stream granularity (i.e. shaking table feed preparation unit size) accounts for 78%~82%, and -200 mesh granular mass ratios for -40 mesh granular mass ratios and accounted for
38%~42%.One section of mill in the present invention program preferably uses rod milling so that evenly, overground phenomenon subtracts ore milling product granularity
It is few, so as to improve the gravity treatment effect of valuable mineral (particularly tungsten mineral).
Table concentrate is introduced into the concentrating table for proposing operation between gold in preferable scheme, and concentrating table concentrate is successively by washing in a pan
Basin is eluriated, with after hydrochloric acid and hydrogen peroxide removal of impurities, obtains gold containing material.
More preferably concentrating table mine tailing enters the chats shaking table that groove floats operation in scheme.
Basin mine tailing is more preferably washed in a pan in scheme and periodically returns to concentrating table.
Shaking table chats is introduced into chats shaking table in preferable scheme, and chats shaking table mine tailing enters groove and floats flotation operation, passes through
One slightly sweeps two essences, chats order Returning process, obtains groove and floats antimony gold concentrate.
More preferably the entrance of chats table concentrate carries the concentrating table of operation between gold in scheme.
More preferably scheme bracket groove floats flotation tailing and floats shaking table into groove.
The concentration that more preferably scheme bracket groove floats chats shaking table mine tailing in floatation process be 5wt%~10wt%, granularity is-
40 mesh granular mass ratios account for 90%~95%；Groove floats flotation addition unit consumption of medicine：3200~4000g/t of sulfuric acid, adjust pH value
(for commercially available medicament, such as it can purchase in Hubei Jingjiang beneficiation reagent for 6~6.5,5500~6000g/t of prodan, xanthate MA-3
Co., Ltd) 5000~5500g/t, 15~25g/t of terpenic oil.The preferred of the present invention floats flotation using groove, can be single by coarse grain
The Au-Sn deposit thing of body dissociation selects in priority floating；Be advantageous to subsequently to use shaking table to sort out black and white tungsten mineral, it then follows " it is early receive it is more
The ore dressing principle of receipts ", reduces the overground phenomenon of valuable mineral.
More preferably scheme bracket groove, which floats flotation tailing and floats separation by shaking table by groove, obtains that gravity treatment black and white tungsten concentrate and groove are floating to be shaken
Tailstock ore deposit；Gravity treatment black and white tungsten concentrate simultaneously realizes that table floats by adding 130~170g/t kerosene, reduces gold, antimony mineral in gravity treatment
Loss in black and white tungsten concentrate；Groove floats shaking table mine tailing and enters secondary grinding graded operation.
Secondary grinding classification forms closed circuit grinding using ball mill and spiral classifier in preferable scheme, and grader overflows
Stream granularity is that -200 mesh granular mass ratios account for 72~76%, and classifier overflow enters flotation operation.The secondary grinding of the present invention
The recovery of gold, three kinds of antimony, tungsten metals has been taken into account, has been -200 mesh particle matter preferably by ore milling product granularity (i.e. flotation feed preparation unit size)
Amount ratio accounts for 74% or so, it is ensured that three kinds of basic monomer dissociations of metal, and not easily lead to overground phenomenon (particularly tungsten ore
Thing).
More preferably the flotation operation described in scheme first uses antimony gold bulk flotation, obtains flotation antimony gold concentrate；Antimony gold
Bulk flotation mine tailing obtains white tungsten rough concentrate, white tungsten rough concentrate is processed flotation by low concentration tungsten successively, taken off by white tungsten flotation
After phosphorus, flotation tungsten concentrate is obtained.
More preferably the bulk flotation of antimony gold sweeps two essences, chats order Returning process process by one thick three in scheme；Flotation
Concentration (mineral account for the mass percent concentration of slurry) is 25~30wt%, pH value 7；Medicament list is added in the bulk flotation of antimony gold
Consumption：(conventional commercial produces for 50~70g/t of plumbi nitras, 50~70g/t of copper sulphate, 200~300g/t of xanthate MA-3, fourth Sodium Aerofloat
Product) 40~60g/t, 20~50g/t of terpenic oil.The bulk flotation of antimony gold is preferably using collecting agent using xanthate MA-3 and fourth Sodium Aerofloat
Mixed reagent, it is ensured that gold, antimony recovery index stabilization, efficiently.
More preferably white tungsten flotation sweeps two essences, chats order Returning process flow by one thick three in scheme；Floatation concentration
For 22wt%~28wt%, pH value is 9~10；Add unit consumption of medicine：1400~1600g/t of soda ash, 600~800g/ of waterglass
T, 200~300g/t of xanthate MA-3,70~150g/t of saponification oleic acid.
More preferably white tungsten rough concentrate is first concentrated into concentration as after 35wt%~50wt% in scheme, using Dinko Petrov method
Heating parsing, 95~100 DEG C of resolution temperature, parses 45~60min of the time；Resolving uses waterglass, waterglass unit consumption 80
The white tungsten rough concentrates of~120kg/t, waste liquid is not taken off after parsing, be directly entered the processing flotation of low concentration tungsten.
More preferably the processing flotation of low concentration tungsten sweeps two essences, chats order Returning process flow by one thick two in scheme；
Floatation concentration is 10~15%；Low concentration tungsten processing flotation addition medicament：The white tungsten rough concentrates of 80~100g/t of saponification oleic acid dosage.
More preferably dephosphorization is realized by hydrochloric acid in scheme, and the dosage of hydrochloric acid processes flotation concentrate for 400~600kg/t.
What the present invention used goes out the mixing gold antimony tungsten ore that grand raw ore is mainly fertile small stream ore deposit and fish mountain ore deposit, typically fertile small stream ore deposit
Stone and fish mountain ore example 2~3 in mass ratio:1 (optimal proportion 2.5:1) mix.
Compared with the prior art, the advantageous effects that bring of the present invention are：It is uneven according to raw ore valuable mineral thickness grain
The characteristics of embedding cloth and relatively low grade, using the mineral processing circuit of " stage grinding, again stage grading, floating joint ", can efficiently it return
The mineral such as gold, antimony and tungsten are received, prepare quality higher matter gold, antimony gold bulk concentrate and tungsten concentrate.The technique of the present invention is simple,
Realize the comprehensive utilization of mineral resources, high financial profit.Gold of the solution of the present invention especially suitable for fish mountain mining area exploitation
Antimony tungsten paragenetic raw ore, or its composite ore recovery gold, antimony and tungsten metal with the golden antimony tungsten paragenetic raw ore of fertile small stream mining area exploitation.
Brief description of the drawings
【Fig. 1】For the process chart of the present invention.
Embodiment
Following embodiment is intended to illustrate the content of the invention rather than the scope to the claims in the present invention protection is entered to advance
One step is limited, and the present invention can be implemented in a manner of any described by the content of the invention.
Embodiment 1
By the raw ore containing golden 5.2g/t, containing antimony 1.319%, tungstenic 0.158%, -40 mesh are milled to through primary grinding
81.61%, sorted into roughing table, table concentrate entrance carries the concentrating table of operation between gold, and concentrating table concentrate is through washing in a pan basin
Eluriate, hydrochloric acid after hydrogen peroxide removal of impurities with obtaining the gold containing material containing gold 98.34%, with respect to the raw ore rate of recovery 21.69%.
Shaking table chats enters groove and floats operation, and after chats shaking table sorts, mine tailing enters groove and floats flotation operation, to ore deposit (in i.e.
Ore deposit shaking table mine tailing) concentration 5.2%, the mesh of feed preparation unit size -40 94.25%, add unit consumption of medicine (relative activity) and be shown in Table 1, output groove
Floating antimony gold concentrate, its operation recovery Au：96.96%th, Sb：96.28%th, WO3：7.87%, with respect to raw ore rate of recovery Au：
14.85%th, Sb：17.23%th, WO3：2.23%, groove floats antimony gold concentrate multielement analysis and the results are shown in Table 2.
The groove of 1 embodiment of table 1 floats floating agent unit consumption (g/t)
The groove of 2 embodiment of table 1 floats antimony gold concentrate multielement analysis result (%)
Groove floats flotation tailing addition kerosene 152g/t and enters the floating shaking table of groove, produces gravity treatment black and white tungsten concentrate, its operation recovery
Au：2.41%th, Sb：0.13%th, WO3：77.47%, with respect to raw ore rate of recovery Au：0.011%th, Sb：0.001%th, WO3：
20.228%, gravity treatment black and white tungsten concentrate multielement analysis the results are shown in Table 3.
The gravity treatment black and white tungsten concentrate multielement analysis result (%) of 3 embodiment of table 1
Shaking table mine tailing floats shaking table mine tailing with groove and is combined into secondary grinding classification, and it is floating that classifier overflow enters antimony gold mixing
Choosing, floatation concentration 26.17%, granularity is -200 mesh 75.46%, and addition unit consumption of medicine is shown in Table 4 (with respect to raw ore), production flotation antimony gold
Concentrate, its operation recovery Au：82.66%th, Sb：97.03%th, WO3：2.35%, with respect to raw ore rate of recovery Au：52.45%th,
Sb：80.32%th, WO3：1.79%, flotation antimony gold concentrate multielement analysis the results are shown in Table 5.
The antimony gold bulk flotation unit consumption of medicine (g/t) of 4 embodiment of table 1
The flotation antimony gold concentrate multielement analysis result (%) of 5 embodiment of table 1
Antimony gold bulk flotation mine tailing enters white tungsten flotation, produces white tungsten rough concentrate, its operation recovery Au：11.27%th, Sb：
11.29%th, WO3：55.09%, with respect to raw ore rate of recovery Au：1.24%th, Sb：0.28%th, WO3：41.20%, major technique operation
Condition is shown in Table 6.
6 embodiment of table, 1 white tungsten flotation major technique operating condition
White tungsten rough concentrate is concentrated to after concentration 45%, enters parsing, parsing plus waterglass 79.45kg/t are (relative to white tungsten
Rough concentrate), 95 DEG C of resolution temperature, time 45min is parsed, waste liquid is not taken off after parsing, be directly entered the processing flotation of low concentration tungsten.It is low
Concentration tungsten processing flotation addition saponification oleic acid 98g/t (relative activity), production processing concentrate, its operation recovery WO3：95.17%,
With respect to raw ore rate of recovery WO3：39.21%, processing concentrate multielement analysis the results are shown in Table 7.
The embodiment 1 of table 7 processing concentrate multielement analysis result (%)
Processing concentrate dephosphorization operation recovery 99%, is taken off by adding hydrochloric acid 450kg/t (relative to processing concentrate) dephosphorization
Phosphorus concentrate is flotation tungsten concentrate, and its multielement analysis the results are shown in Table 8.
The flotation tungsten concentrate multielement analysis result (%) of 8 embodiment of table 1
It is computed overall recovery Au：88.99%th, Sb：97.55%th, WO3：59.05%.
Embodiment 2：
By the raw ore containing golden 4.5g/t, containing antimony 1.25%, tungstenic 0.143%, -40 mesh 82.50% are milled to through primary grinding,
Sorted into roughing table, table concentrate entrance carries the concentrating table of operation between gold, and concentrating table concentrate is eluriated through washing in a pan basin, hydrochloric acid
The gold containing material containing gold 98.12% is obtained after being cleaned with hydrogen peroxide, with respect to the raw ore rate of recovery 20.05%.
Shaking table chats enters groove and floats operation, and after chats shaking table sorts, mine tailing enters groove and floats flotation operation, to ore deposit (in i.e.
Ore deposit shaking table mine tailing) concentration 7.6%, the mesh of feed preparation unit size -40 89.65%, add unit consumption of medicine (relative activity) and be shown in Table 9, output groove
Floating antimony gold concentrate, its operation recovery Au：96.02%th, Sb：97.15%th, WO3：8.23%, with respect to raw ore rate of recovery Au：
14.69%th, Sb：17.29%th, WO3：2.33%, groove floats antimony gold concentrate multielement analysis and the results are shown in Table 10.
The groove of 9 embodiment of table 2 floats floating agent unit consumption (g/t)
The groove of 10 embodiment of table 2 floats antimony gold concentrate multielement analysis result (%)
Groove floats flotation tailing addition kerosene 145g/t and enters the floating shaking table of groove, produces gravity treatment black and white tungsten concentrate, its operation recovery
Au：2.35%th, Sb：0.11%th, WO3：75.32%, with respect to raw ore rate of recovery Au：0.010%th, Sb：0.001%th, WO3：
19.659%, gravity treatment black and white tungsten concentrate multielement analysis the results are shown in Table 11.
The gravity treatment black and white tungsten concentrate multielement analysis result (%) of 11 embodiment of table 2
Shaking table mine tailing floats shaking table mine tailing with groove and is combined into secondary grinding classification, and it is floating that classifier overflow enters antimony gold mixing
Choosing, floatation concentration 25.45%, granularity is -200 mesh 76.78%, and addition unit consumption of medicine is shown in Table 12 (with respect to raw ore), produces flotation antimony
Gold Concentrate under Normal Pressure, its operation recovery Au：81.81%th, Sb：96.05%th, WO3：2.35%, with respect to raw ore rate of recovery Au：53.38%th,
Sb：79.44%th, WO3：1.83%, flotation antimony gold concentrate multielement analysis the results are shown in Table 13.
The antimony gold bulk flotation unit consumption of medicine (g/t) of 12 embodiment of table 2
The flotation antimony gold concentrate multielement analysis result (%) of 13 embodiment of table 2
Antimony gold bulk flotation mine tailing enters white tungsten flotation, produces white tungsten rough concentrate, its operation recovery Au：8.93%th, Sb：
7.95%th, WO3：59.83%, with respect to raw ore rate of recovery Au：1.06%th, Sb：0.26%th, WO3：45.58%, major technique operation
Condition is shown in Table 14.
14 embodiment of table, 2 white tungsten flotation major technique operating condition
White tungsten rough concentrate is concentrated to after concentration 40%, enters parsing, parsing plus waterglass 86.50kg/t are (relative to white tungsten
Rough concentrate), 95 DEG C of resolution temperature, time 45min is parsed, waste liquid is not taken off after parsing, be directly entered the processing flotation of low concentration tungsten.It is low
Concentration tungsten processing flotation addition saponification oleic acid 84g/t (relative activity), production processing concentrate, its operation recovery WO3：96.47%,
With respect to raw ore rate of recovery WO3：43.97%, processing concentrate multielement analysis the results are shown in Table 15.
The embodiment 2 of table 15 processing concentrate multielement analysis result (%)
Processing concentrate by add hydrochloric acid 550kg/t (relative to processing concentrate) dephosphorization, dephosphorization operation recovery 99.5%,
Dephosphorization concentrate is flotation tungsten concentrate, and its multielement analysis the results are shown in Table 16.
The flotation tungsten concentrate multielement analysis result (%) of 16 embodiment of table 2
It is computed overall recovery Au：88.12%th, Sb：96.73%th, WO3：63.41%.
Claims (7)
1. a kind of technique of low-grade gold antimony tungsten paragenetic raw ore Mineral separation, it is characterised in that underground is gone out into grand raw ore by two
Section one closed circuit+washup+picking technique crushes, and breaking ores, into roughing table, sub-elect shaking table essence after primary grinding is classified
Ore deposit, shaking table chats and shaking table mine tailing；Table concentrate, which enters, proposes operation between gold, produces gold containing material；Shaking table chats enters groove and floats operation,
Produce groove and float antimony gold concentrate；Shaking table mine tailing enters secondary grinding classification, flotation operation, produces tungsten concentrate；Described goes out grand raw ore
Middle gold content≤5.2g/t, antimony grade≤1.319%, tungsten grade≤0.143%, tungsten is in terms of tungstic acid, wherein white tungsten accounts for
69%~83%, black tungsten accounts for 17%~31%；
Described shaking table chats is introduced into chats shaking table, and chats shaking table mine tailing enters groove and floats flotation operation, and slightly two are swept by one
Essence, chats order Returning process, obtain groove and float antimony gold concentrate；The entrance of chats table concentrate carries the concentrating table of operation between gold；Groove
Floating flotation tailing enters groove and floats shaking table；
The floating flotation tailing of described groove floats separation by shaking table by groove and obtains gravity treatment black and white tungsten concentrate and the floating shaking table mine tailing of groove；Gravity treatment is black
White tungsten fine ore simultaneously realizes that table floats by adding 130~170g/t kerosene, reduces gold, antimony mineral in gravity treatment black and white tungsten concentrate
Loss；Groove floats shaking table mine tailing and enters secondary grinding graded operation；
Described secondary grinding classification forms closed circuit grinding using ball mill and spiral classifier, the overflow granularity of grader for-
200 mesh granular mass ratios account for 72~76%, and classifier overflow enters flotation operation；
Described flotation operation first uses antimony gold bulk flotation, obtains flotation antimony gold concentrate；Antimony gold bulk flotation mine tailing passes through white
Tungsten flotation, obtains white tungsten rough concentrate, and white tungsten rough concentrate after low concentration tungsten processes flotation, dephosphorization, obtains flotation of tungsten essence successively
Ore deposit；
Described white tungsten rough concentrate is first concentrated into concentration after 35wt%~50wt%, to heat and parsing using Dinko Petrov method, solution
95~100 DEG C of eutectoid temperature, parse 45~60min of the time；Resolving uses waterglass, and 80~120kg/t of waterglass unit consumption is white
Tungsten rough concentrate, waste liquid is not taken off after parsing, be directly entered the processing flotation of low concentration tungsten；Described low concentration tungsten processing flotation passes through one
Thick two sweep two essences, chats order Returning process flow；White tungsten rough concentrate concentration is 10~15wt%；The processing flotation of low concentration tungsten adds
Adding medicine：80~100g/t of saponification oleic acid dosage；
Described dephosphorization realizes that the dosage of hydrochloric acid processes flotation concentrate for 400~600kg/t by hydrochloric acid.
2. the technique of low-grade gold antimony tungsten paragenetic raw ore Mineral separation according to claim 1, it is characterised in that described
Primary grinding classification forms closed circuit grinding using rod mill and spiral classifier, and the overflow granularity of grader is -40 mesh particle matter
Amount ratio accounts for 78%~82%, and -200 mesh granular mass ratios and accounts for 38%~42%.
3. the technique of low-grade gold antimony tungsten paragenetic raw ore Mineral separation according to claim 1, it is characterised in that described
Table concentrate is introduced into the concentrating table for proposing operation between gold, and concentrating table concentrate eluriates by washing in a pan basin successively, with hydrochloric acid and dioxygen
After water removal of impurities, gold containing material is obtained.
4. the technique of low-grade gold antimony tungsten paragenetic raw ore Mineral separation according to claim 3, it is characterised in that selected to shake
Tailstock ore deposit enters the chats shaking table that groove floats operation；Wash in a pan basin mine tailing and periodically return to concentrating table.
5. the technique of low-grade gold antimony tungsten paragenetic raw ore Mineral separation according to claim 1, it is characterised in that described
The concentration that groove floats chats shaking table mine tailing in floatation process is 5wt%~10wt%, and granularity is that -40 mesh granular mass ratios account for 90%
~95%；Groove floats flotation addition unit consumption of medicine：3200~4000g/t of sulfuric acid, regulation pH value be 6~6.5, prodan 5500~
6000g/t, 5000~5500g/t of xanthate MA-3,15~25g/t of terpenic oil.
6. the technique of low-grade gold antimony tungsten paragenetic raw ore Mineral separation according to claim 1, it is characterised in that described
The bulk flotation of antimony gold sweeps two essences, chats order Returning process process by one thick three；Floatation concentration is 25~30wt%, and pH value is
7；Unit consumption of medicine is added in the bulk flotation of antimony gold：50~70g/t of plumbi nitras, 50~70g/t of copper sulphate, xanthate MA-3 200~
300g/t, 40~60g/t of fourth Sodium Aerofloat, 20~50g/t of terpenic oil.
7. the technique of low-grade gold antimony tungsten paragenetic raw ore Mineral separation according to claim 1, it is characterised in that described
White tungsten flotation sweeps two essences, chats order Returning process flow by one thick three；Floatation concentration is 22wt%~28wt%, and pH value is
9~10；Add unit consumption of medicine：1400~1600g/t of soda ash, 600~800g/t of waterglass, 200~300g/t of xanthate MA-3,
70~150g/t of saponification oleic acid.
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| CN106269269B (en) * | 2016-11-02 | 2018-08-17 | 广西大学 | A kind of sulphur oxygen symbiosis mixing antimony ore flotation recovery method |
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| CN101269352B (en) * | 2008-05-05 | 2012-05-30 | 广州有色金属研究院 | Beneficiation method for black and white tungsten fine deposit |
| CN101579653A (en) * | 2009-06-10 | 2009-11-18 | 广州有色金属研究院 | Benefication method for concentrating fine tungsten ore in tailings by warming scheelite |
| CN101648157B (en) * | 2009-08-25 | 2013-05-01 | 广州有色金属研究院 | Beneficiation method of black and white tungsten mineral |
| CN101786038B (en) * | 2009-11-18 | 2012-10-31 | 瓮福（集团）有限责任公司 | Beneficiation method of molybdenum and nickel from multi-metal ores |
| CN102071324B (en) * | 2011-01-29 | 2012-11-28 | 湖南辰州矿业股份有限公司 | Process for extracting gold from high-grade gold concentrate |
| CN102527498B (en) * | 2011-12-31 | 2013-07-10 | 元阳县华西黄金有限公司 | Non-cyanide ore dressing method for gold-copper-lead sulfide ore |
| CN103990549A (en) * | 2014-05-30 | 2014-08-20 | 紫金矿业集团股份有限公司 | Beneficiation method for complex multi-metal sulfide electrum comprehensive recovery |
| CN104148167A (en) * | 2014-08-06 | 2014-11-19 | 哈巴河金坝矿业有限公司 | Reselection recovery method and device for gold |
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