CN103878073A - Copper molybdenum separation flotation agent and using method thereof - Google Patents
Copper molybdenum separation flotation agent and using method thereof Download PDFInfo
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- CN103878073A CN103878073A CN201410161994.5A CN201410161994A CN103878073A CN 103878073 A CN103878073 A CN 103878073A CN 201410161994 A CN201410161994 A CN 201410161994A CN 103878073 A CN103878073 A CN 103878073A
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Abstract
The invention relates to the technical field of non-ferrous metal processing, in particular to a copper molybdenum separation flotation agent and a using method thereof. The copper molybdenum separation flotation agent comprises inhibitor for inhibiting copper mineral and collecting agent for collecting molybdenum mineral, wherein the inhibitor comprises, by weight, 3 to 5 parts of sodium carbonate, 3 to 5 parts of sulfate, 10 to 15 parts of copper compounds, 15 to 20 parts of sulfide salt, and 15 to 20 parts of hydrosulphide salt; the collecting agent comprises, by weight, 1 to 3 parts of oleic acid, 15 to 25 parts of butyl octyl oleate, and 40 to 50 parts of oil pyrolysis products. The copper molybdenum separation flotation agent and the using method thereof reduce usage amount of the agent, can achieve a certain degree of degradation in waste water if the agents are mutually matched, and thus are more environmentally friendly.
Description
Technical field
The present invention relates to non-ferrous metal ore technical field, in particular to a kind of copper molybdenum separating flotation agent and using method thereof.
Background technology
Molybdenum is the occurring in nature less a kind of element that distributes, average content in the earth's crust is about 0.001%, the molybdenum resource of the U.S. is the abundantest in the world, next is Canada and Chilean, molybdenum in China resource is abundanter, but now except the single formation molybdenum deposit of molybdenite, form polymetallic ore with other vulcanization bed symbiosis widely, as copper molybdenum sulfur deposit etc.
For reclaiming molybdenum in copper-molybdenum ore, a large amount of research work and practice are carried out both at home and abroad, great majority all adopt the isolation technics that presses down the floating molybdenum of copper, but the press down inhibitor of copper and the collecting agent of floating molybdenum that adopt mostly are single drug, as vulcanized sodium, Cymag, kerosene etc., but when single drug pharmaceutical quantities need very large could separate thorough, cause like this medicament waste water COD to exceed standard, brought environmental problem.
Summary of the invention
The object of the present invention is to provide a kind of copper molybdenum separating flotation agent and using method thereof, to solve the above problems.
The agent of a kind of copper molybdenum separating flotation is provided in an embodiment of the present invention, has comprised: for suppressing the inhibitor of copper mineral and the collecting agent for collecting molybdenum ore thing;
Wherein said inhibitor is counted by weight and is comprised following component: sodium carbonate 3-5 part, sulfate 3-5 part, copper compound 10-15 part, sulphurizing salt 15-20 part, sulphur hydrogenation salt 15-20 part;
Described collecting agent is counted by weight and is comprised following component: oleic acid 1-3 part, 2-butyl octyl oleate 15-25 part, petroleum cracking product 40-50 part.
The copper molybdenum separating flotation agent that the embodiment of the present invention provides, the composition that presses down the inhibitor of copper and the collecting agent of floating molybdenum and be various medicaments of its employing adopting, by cooperatively interacting of medicament, thereby reduce the use amount of medicament and worked in coordination and can also in waste water, realize degraded environmental protection more to a certain degree.
Preferably, described inhibitor is counted by weight and is comprised following component: sodium carbonate 3-4 part, sulfate 3-4 part, copper compound 10-12 part, sulphurizing salt 15-18 part, sulphur hydrogenation salt 15-18 part;
Described collecting agent is counted by weight and is comprised following component: oleic acid 1-2 part, 2-butyl octyl oleate 15-20 part, petroleum cracking product 40-45 part.
In order to make inhibitor better dispersed, inhibition is better, and therefore preferably, described inhibitor is counted by weight and also comprised following component: water 130-150 part.
The embodiment of the present invention also provides the using method of a kind of copper molybdenum separating flotation agent, comprises the steps:
(A) described inhibitor and described collecting agent are joined in copper molybdenum bulk concentrate slurry, separate to roughly select and obtain molybdenum rough concentrate ore pulp and copper rough concentrate ore pulp, the consumption of wherein said inhibitor is to add being metered into of 400-500g inhibitor by raw ore per ton, the consumption of described collecting agent is to add being metered into of 5-12g collecting agent by raw ore per ton, in described copper molybdenum bulk concentrate slurry, liquid-solid mass ratio is 4-6:1, and the time that described separation is roughly selected is 15-25min;
(B) will after described molybdenum rough concentrate ore pulp grinding, separate the selected molybdenum concntrate that obtains, in described molybdenum rough concentrate ore pulp, liquid-solid mass ratio is 5-6:1, the selected number of times of described separation is 5-9 time, each selected time is 15-30min, wherein the 1-2 time selected described inhibitor consumption adding of each separation is to add being metered into of 135-350g inhibitor by raw ore per ton, collector dosage is to add being metered into of 0-2g collecting agent by raw ore per ton, the 3-9 time the selected described inhibitor consumption adding of each separation is that raw ore per ton adds being metered into of 20-160g inhibitor, collector dosage is that raw ore per ton adds being metered into of 0-2g collecting agent,
(C) described copper rough concentrate ore pulp is separated to scan obtain copper concentrate, the number of times that described separation is scanned is 1-2 time, the time of at every turn scanning is 8-15min, in described copper rough concentrate ore pulp, liquid-solid mass ratio is 6-9:1, wherein separating at every turn and scanning the described inhibitor consumption adding is to add being metered into of 200-350g inhibitor by raw ore per ton, and collector dosage is to add being metered into of 1.25-5g collecting agent by raw ore per ton.
The using method of a kind of copper molybdenum separating flotation agent that the embodiment of the present invention provides, what it adopted press down the inhibitor of copper and the collecting agent of floating molybdenum is the composition of various medicaments, by cooperatively interacting of medicament, thereby reduce the use amount of medicament and worked in coordination and can also in waste water, realize degraded environmental protection more to a certain degree.
Preferably, in described step (A), the consumption that carries out the described inhibitor adding when described separation is roughly selected is to add being metered into of 400-460g inhibitor by raw ore per ton, and collector dosage is to add being metered into of 5-10g collecting agent by raw ore per ton.
Preferably, in described step (B), after described molybdenum rough concentrate ore pulp grinds, the mass fraction of granularity below 325 orders accounts for the 85-95% of the molybdenum rough concentrate ore pulp gross weight after grinding, and the granularity of grinding is carried out selected effect thinner in the situation that also can be relatively good.
Preferably, in described step (B), separate when selected, separating the selected described inhibitor consumption adding is for the first time to add being metered into of 250-350g inhibitor by raw ore per ton, and separating the selected described inhibitor consumption adding is for the second time to add being metered into of 135-250g inhibitor by raw ore per ton.Separate in refining process at first twice, in order better to restrain copper, the amount of inhibitor is relatively large.
Preferably, in described step (C), separate when selected, when the number of times of scanning when described separation is 2 times, separating for the first time and scanning the described inhibitor consumption adding is to add being metered into of 250-350g inhibitor by raw ore per ton, and separating for the second time and scanning the described inhibitor consumption adding is to add being metered into of 200-300g/t inhibitor by raw ore per ton.
Preferably, also comprise the steps: afterwards described copper concentrate to filter, be dried in step (C), described molybdenum concntrate is filtered, is dried.
The present invention's collecting agent used is due to the physical absorption that is adsorbed as at mineral surfaces, collecting effect is fine, and collecting agent itself be easy to volatilization, when waste water recycling, volatilization is complete substantially for collecting agent, has so just avoided collecting agent in waste water recycling to separate the harmful effect bringing to copper molybdenum.
The present invention's inhibitor used forms chemisorbed at mineral surfaces, reduces the absorption of collecting agent molecule at mineral surfaces, thereby realizes the inhibition to copper, and inhibition ability is strong, copper molybdenum good separating effect.In the effective group of this inhibitor, sulphion is oxidizable separates out, and waste water inhibitor after concentrator is exposed to the sun lost efficacy substantially, turned back to like this and affected little on copper molybdenum Separation Indexes when flow process is used.
Detailed description of the invention
Below by specific embodiment, the present invention is described in further detail.
Embodiment 1
Carry out copper molybdenum and separate that to obtain the technological process of copper concentrate and molybdenum concntrate as follows:
(A) prepare respectively inhibitor and collecting agent, wherein inhibitor is formulated by following component: sodium carbonate 3kg, sulfate 3kg, copper compound 10kg, sulphurizing salt 15kg, sulphur hydrogenation salt 15kg;
Collecting agent is formulated by following component: oleic acid 1kg, 2-butyl octyl oleate 15kg, petroleum cracking product 40kg.
(B) raw ore is that 100 tons of bulk flotations go out 3 tons of copper molybdenum bulk concentrate slurries, then 50kg inhibitor and 800g collecting agent are joined in 3 tons of copper molybdenum bulk concentrates slurry, to separate to roughly select and obtain 0.35 ton of molybdenum rough concentrate ore pulp and 2.65 tons of copper rough concentrate ore pulps, in copper molybdenum bulk concentrate slurry, liquid-solid mass ratio is 4:1, and separating the time of roughly selecting is 25min;
(C) will after 0.35 ton of molybdenum rough concentrate ore pulp grinding, separate selected 0.0242 ton of the molybdenum concntrate that obtains, in molybdenum rough concentrate ore pulp, liquid-solid mass ratio is 6:1, separating selected number of times is 5 times, each selected time is 15min, the 1-2 time the selected inhibitor consumption adding of each separation is 25kg, collector dosage is 200g, and the 3-5 time the selected inhibitor consumption adding of each separation is 16kg, and collector dosage is for add 0g at every turn;
(D) 2.65 tons of copper rough concentrate ore pulps are separated to scan obtain 2.64 tons of copper concentrates, separating the number of times of scanning is 1 time, and the time of scanning is 8min, and in copper rough concentrate ore pulp, liquid-solid mass ratio is 6:1, and inhibitor consumption is 35kg, and collector dosage is 125g.
Embodiment 2
Carry out copper molybdenum and separate that to obtain the technological process of copper concentrate and molybdenum concntrate as follows:
(A) prepare respectively inhibitor and collecting agent, wherein inhibitor is formulated by following component: sodium carbonate 5kg, sulfate 5kg, copper compound 15kg, sulphurizing salt 20kg, sulphur hydrogenation salt 20kg, water 650kg;
Collecting agent is formulated by following component: oleic acid 3kg, 2-butyl octyl oleate 25kg, petroleum cracking product 50kg.
(B) raw ore is that 100 tons of bulk flotations go out 3 tons of copper molybdenum bulk concentrate slurries, 40kg inhibitor and 1200g collecting agent are joined in 3 tons of copper molybdenum bulk concentrate slurries and separate and roughly select, obtain 2.60 tons of 0.40 ton of molybdenum rough concentrate ore pulp and copper rough concentrate ore pulps, in copper molybdenum bulk concentrate slurry, liquid-solid mass ratio is 6:1, and separating the time of roughly selecting is 15min;
(C) 0.40 ton of molybdenum rough concentrate ore pulp is ground, in molybdenum rough concentrate ore pulp after grinding, granularity accounts for 85% below 325 orders, then separate selected 0.0264 ton of the molybdenum concntrate that obtains, in molybdenum rough concentrate ore pulp, liquid-solid mass ratio is 6:1, and separating selected number of times is 9 times, and each selected time is 30min, the 1-2 time the selected inhibitor consumption adding of each separation is 35kg, collecting agent 0g, the 3-9 time the selected inhibitor consumption adding of each separation is 2kg, collecting agent adds 200g;
(D) 2.60 tons of copper rough concentrate ore pulps are separated to scan obtain 2.58 tons of copper concentrates, separating the number of times of scanning is 2 times, and the time of scanning is 15min, and in copper rough concentrate ore pulp, liquid-solid mass ratio is 7:1, and inhibitor consumption is 20kg, and collector dosage is 500g.
(E) copper concentrate filtered, be dried, and molybdenum concntrate is filtered, is dried.
Embodiment 3
Carry out copper molybdenum and separate that to obtain the technological process of copper concentrate and molybdenum concntrate as follows:
(A) prepare respectively inhibitor and collecting agent, wherein inhibitor is formulated by following component: sodium carbonate 4kg, sulfate 4kg, copper compound 12kg, sulphurizing salt 18kg, sulphur hydrogenation salt 18kg, water 560kg;
Collecting agent is formulated by following component: oleic acid 2kg, 2-butyl octyl oleate 20kg, petroleum cracking product 45kg.
(B) raw ore is that 100 tons of bulk flotations go out 3 tons of copper molybdenum bulk concentrate slurries, 46kg inhibitor and 1000g collecting agent are joined in 3 tons of copper molybdenum bulk concentrates slurry, to separate to roughly select and obtain 0.44 ton of molybdenum rough concentrate ore pulp and 2.56 tons of copper rough concentrate ore pulps, in copper molybdenum bulk concentrate slurry, liquid-solid mass ratio is 5:1, and separating the time of roughly selecting is 20min;
(C) 0.44 ton of molybdenum rough concentrate ore pulp is ground, in molybdenum rough concentrate ore pulp after grinding, granularity accounts for 95% below 325 orders, then separate selected 0.0271 ton of the molybdenum concntrate that obtains, in molybdenum rough concentrate ore pulp, liquid-solid mass ratio is 5:1, separating selected number of times is 8 times, each selected time is 20min, the 1st time separates the selected inhibitor consumption adding is 25kg, the 2nd time separates the selected inhibitor consumption adding is 22.95kg, collecting agent does not all add, the 3-8 time the selected inhibitor consumption adding of each separation is 10kg, and collecting agent does not add;
(D) 2.56 tons of copper rough concentrate ore pulps are separated to scan obtain 2.55 tons of copper concentrates, the number of times that separation is scanned is 2 times, the time of scanning is 10min, in copper rough concentrate ore pulp, liquid-solid mass ratio is 6:1, scanning for the first time the inhibitor consumption adding is 25.9kg, collector dosage is 186.09g, and scanning for the second time the inhibitor consumption adding is 30kg, and collector dosage is 155.08g.
(E) copper concentrate obtaining filtered, be dried, and the molybdenum concntrate obtaining is filtered, is dried.
Embodiment 4
Carry out copper molybdenum and separate that to obtain the technological process of copper concentrate and molybdenum concntrate as follows:
(A) prepare respectively inhibitor and collecting agent, wherein inhibitor is formulated by following component: sodium carbonate 3.5kg, sulfate 3.5kg, copper compound 11kg, sulphurizing salt 17kg, sulphur hydrogenation salt 17kg, water 520kg;
Collecting agent is formulated by following component: oleic acid 1.5kg, 2-butyl octyl oleate 18kg, petroleum cracking product 43kg.
(B) raw ore is that 100 tons of bulk flotations go out 3 tons of copper molybdenum bulk concentrate slurries, 40kg inhibitor and 857.14g collecting agent are joined in 3 tons of copper molybdenum bulk concentrates slurry, to separate to roughly select and obtain 0.37 ton of molybdenum rough concentrate ore pulp and 2.63 tons of copper rough concentrate ore pulps, in copper molybdenum bulk concentrate slurry, liquid-solid mass ratio is 4:1, and separating the time of roughly selecting is 24min;
(C) will after 0.37 ton of molybdenum rough concentrate ore pulp grinding, separate selected 0.0248 ton of the molybdenum concntrate that obtains, in molybdenum rough concentrate ore pulp, liquid-solid mass ratio is 6:1, separating selected number of times is 7 times, each selected time is 22min, and the 1st time separates the selected inhibitor consumption adding is 35kg, collecting agent 80.36g, the 2nd time separates the selected inhibitor consumption adding is 13.5kg, collecting agent 20g, the 3-9 time the selected inhibitor consumption adding of each separation is 3kg, collecting agent 10g;
(D) 2.63 tons of copper rough concentrate ore pulps are separated to scan obtain 2.62 tons of copper concentrates, separating the number of times of scanning is 1 time, and the time of scanning is 13min, and in blister copper ore pulp, liquid-solid mass ratio is 9:1, and inhibitor consumption is 24.8kg, and collector dosage is 160g.
(E) copper concentrate filtered, be dried, and molybdenum concntrate is filtered, is dried.
Experimental example 1:
The molybdenum concntrate that the parameter of the molybdenum concntrate going out with embodiment of the present invention 1-2 separating flotation and copper concentrate and comparative example 1 separating flotation are gone out and the parameter of copper concentrate compare, wherein the separating flotation method of comparative example 1 is: except inhibitor select the inhibitor selected from the embodiment of the present invention 1 of vulcanized sodium different, in separating flotation process collecting agent select and consumption and the method for floating of consumption, inhibitor vulcanized sodium all identical with inhibitor consumption and technological process in the embodiment of the present invention 1, concrete outcome sees the following form 1:
Table 1 inhibitor Different Results Data Comparison
As can be seen from Table 1, in the molybdenum concntrate going out with embodiment of the present invention 1-2 separating flotation, the grade of the molybdenum concntrate Cu that the grade of Cu goes out lower than comparative example 1 separating flotation, in molybdenum concntrate, the grade of Mo is higher than Mo grade in molybdenum concntrate in comparative example 1, correspondingly, in the molybdenum concntrate going out with embodiment of the present invention 1-2 separating flotation, the rate of recovery of the molybdenum concntrate Mo that the rate of recovery of Mo goes out higher than comparative example 1 separating flotation, illustrate like this embodiment of the present invention 1-2 method separate more thorough.Wherein, the implication of grade and the rate of recovery refers to, in molybdenum concntrate, copper grade is lower, and sorting is better, and molybdenum concentrate grade is higher, and sorting is better, and molybdenum is of high grade, and productive rate is high, and the rate of recovery is just high, and molybdenum recovery is higher, and sorting is better.
Experimental example 2:
The molybdenum concntrate that the parameter of the molybdenum concntrate going out with embodiment of the present invention 3-4 separating flotation and copper concentrate and comparative example 2 separating flotations are gone out and the parameter of copper concentrate compare, wherein the separating flotation method of comparative example 2 is: except collecting agent select the collecting agent of kerosene and the present invention selection different, in separating flotation process, consumption and the method for floating of the selecting of inhibitor, collecting agent are all identical with collector dosage and the technological process of the embodiment of the present invention 3, and concrete outcome sees the following form 2:
Table 2 collecting agent Different Results Data Comparison
As can be seen from Table 2, by the embodiment of the present invention 3, in the molybdenum concntrate that 4 separating flotations go out, the grade of the molybdenum concntrate Cu that the grade of Cu goes out lower than comparative example 2 separating flotations, Mo grade in the molybdenum concntrate that in molybdenum concntrate, Mo grade goes out higher than comparative example 2 separating flotations, simultaneously the rate of recovery of molybdenum concntrate Mo is higher than the rate of recovery of molybdenum concntrate Mo in comparative example 2, illustrates that like this method of embodiment of the present invention 3-4 separates more thorough, illustrate that collecting agent is selectively better, collecting ability is strong.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. a copper molybdenum separating flotation agent, is characterized in that, comprising: for suppressing the inhibitor of copper mineral and the collecting agent for collecting molybdenum ore thing;
Wherein said inhibitor is counted by weight and is comprised following component: sodium carbonate 3-5 part, sulfate 3-5 part, copper compound 10-15 part, sulphurizing salt 15-20 part, sulphur hydrogenation salt 15-20 part;
Described collecting agent is counted by weight and is comprised following component: oleic acid 1-3 part, 2-butyl octyl oleate 15-25 part, petroleum cracking product 40-50 part.
2. copper molybdenum separating flotation according to claim 1 agent, is characterized in that, described inhibitor is counted by weight and comprised following component: sodium carbonate 3-4 part, sulfate 3-4 part, copper compound 10-12 part, sulphurizing salt 15-18 part, sulphur hydrogenation salt 15-18 part;
Described collecting agent is counted by weight and is comprised following component: oleic acid 1-2 part, 2-butyl octyl oleate 15-20 part, petroleum cracking product 40-45 part.
3. copper molybdenum separating flotation according to claim 1 agent, is characterized in that, described inhibitor is counted by weight and also comprised following component: water 130-150 part.
4. the using method of copper molybdenum separating flotation as claimed in claim 1 agent, is characterized in that, comprises the steps:
(A) described inhibitor and described collecting agent are joined in copper molybdenum bulk concentrate slurry, separate to roughly select and obtain molybdenum rough concentrate ore pulp and copper rough concentrate ore pulp, the consumption of wherein said inhibitor is to add being metered into of 400-500g inhibitor by raw ore per ton, the consumption of described collecting agent is to add being metered into of 5-12g collecting agent by raw ore per ton, in described copper molybdenum bulk concentrate slurry, liquid-solid mass ratio is 4-6:1, and the time that described separation is roughly selected is 15-25min;
(B) will after described molybdenum rough concentrate ore pulp grinding, separate the selected molybdenum concntrate that obtains, in described molybdenum rough concentrate ore pulp, liquid-solid mass ratio is 5-6:1, the selected number of times of described separation is 5-9 time, each selected time is 15-30min, wherein the 1-2 time selected described inhibitor consumption adding of each separation is to add being metered into of 135-350g inhibitor by raw ore per ton, collector dosage is to add being metered into of 0-2g collecting agent by raw ore per ton, the 3-9 time the selected described inhibitor consumption adding of each separation is that raw ore per ton adds being metered into of 20-160g inhibitor, collector dosage is that raw ore per ton adds being metered into of 0-2g collecting agent,
(C) described copper rough concentrate ore pulp is separated to scan obtain copper concentrate, the number of times that described separation is scanned is 1-2 time, the time of at every turn scanning is 8-15min, in described copper rough concentrate ore pulp, liquid-solid mass ratio is 6-9:1, wherein separating at every turn and scanning the described inhibitor consumption adding is to add being metered into of 200-350g inhibitor by raw ore per ton, and collector dosage is to add being metered into of 1.25-5g collecting agent by raw ore per ton.
5. the using method of copper molybdenum separating flotation according to claim 4 agent, it is characterized in that, in described step (A), the consumption that carries out the described inhibitor adding when described separation is roughly selected is to add being metered into of 400-460g inhibitor by raw ore per ton, and collector dosage is to add being metered into of 5-10g collecting agent by raw ore per ton.
6. the using method of copper molybdenum separating flotation according to claim 4 agent, is characterized in that, in described step (B), after described molybdenum rough concentrate ore pulp grinds, the mass fraction of granularity below 325 orders accounts for the 85-95% of the molybdenum rough concentrate ore pulp gross weight after grinding.
7. the using method of copper molybdenum separating flotation according to claim 4 agent, it is characterized in that, in described step (B), separate when selected, separating the selected described inhibitor consumption adding is for the first time to add being metered into of 250-350g inhibitor by raw ore per ton, and separating the selected described inhibitor consumption adding is for the second time to add being metered into of 135-250g/t inhibitor by raw ore per ton.
8. the using method of copper molybdenum separating flotation according to claim 4 agent, it is characterized in that, in described step (C), separate when selected, when the number of times of scanning when described separation is 2 times, separating for the first time and scanning the described inhibitor consumption adding is to add being metered into of 250-350g inhibitor by raw ore per ton, and separating for the second time and scanning the described inhibitor consumption adding is to add being metered into of 200-300g inhibitor by raw ore per ton.
9. the using method of copper molybdenum separating flotation according to claim 4 agent, is characterized in that, also comprises the steps: afterwards in step (C)
Described copper concentrate is filtered, is dried, described molybdenum concntrate is filtered, is dried.
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| CN106694236A (en) * | 2016-12-07 | 2017-05-24 | 广西大学 | Preparation method of ferromolybdenum ore collecting agent |
| CN110385194A (en) * | 2019-07-15 | 2019-10-29 | 黑龙江多宝山铜业股份有限公司 | A kind of beneficiation method of the copper of the high efficiente callback associated gold rhenium from porphyry copper mine, molybdenum |
| CN110465412A (en) * | 2019-09-20 | 2019-11-19 | 栾川县秦豫科技有限公司 | A kind of molybdenite beneficiation inhibitor and preparation method thereof |
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| CN106694236A (en) * | 2016-12-07 | 2017-05-24 | 广西大学 | Preparation method of ferromolybdenum ore collecting agent |
| CN110385194A (en) * | 2019-07-15 | 2019-10-29 | 黑龙江多宝山铜业股份有限公司 | A kind of beneficiation method of the copper of the high efficiente callback associated gold rhenium from porphyry copper mine, molybdenum |
| CN110385194B (en) * | 2019-07-15 | 2021-02-12 | 黑龙江多宝山铜业股份有限公司 | Beneficiation method for recovering copper and molybdenum associated with gold and rhenium from porphyry type copper-molybdenum ore |
| CN110465412A (en) * | 2019-09-20 | 2019-11-19 | 栾川县秦豫科技有限公司 | A kind of molybdenite beneficiation inhibitor and preparation method thereof |
| CN111558468A (en) * | 2020-04-28 | 2020-08-21 | 西北矿冶研究院 | Beneficiation reagent for flotation of molybdenum from copper-molybdenum ore and preparation method thereof |
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