CN112337656A - Method for improving molybdenum-bismuth-sulfur beneficiation index and wastewater recycling - Google Patents
Method for improving molybdenum-bismuth-sulfur beneficiation index and wastewater recycling Download PDFInfo
- Publication number
- CN112337656A CN112337656A CN202011106633.2A CN202011106633A CN112337656A CN 112337656 A CN112337656 A CN 112337656A CN 202011106633 A CN202011106633 A CN 202011106633A CN 112337656 A CN112337656 A CN 112337656A
- Authority
- CN
- China
- Prior art keywords
- bismuth
- molybdenum
- sulfur
- concentrate
- beneficiation
- 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.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/02—Froth-flotation processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/018—Mixtures of inorganic and organic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2203/00—Specified materials treated by the flotation agents; specified applications
- B03D2203/02—Ores
Abstract
The invention discloses a method for improving molybdenum bismuth sulfur beneficiation indicators and wastewater recycling, relates to the technical field of improving the molybdenum bismuth sulfur beneficiation indicators and wastewater recycling, and particularly relates to a method for improving the molybdenum bismuth sulfur beneficiation indicators and wastewater recycling, which comprises the following steps: s1, performing molybdenum, bismuth and sulfur full-floating roughing operation; s2, regrinding the molybdenum, bismuth and sulfur rough concentrate; s3, molybdenum bismuth-sulfur separation operation; s4, molybdenum-bismuth separation operation. The method for improving the molybdenum-bismuth-sulfur beneficiation index and the wastewater recycling simplifies the flow, reduces the operation difficulty, improves the molybdenum-bismuth beneficiation index, realizes the wastewater recycling, reduces the environmental protection pressure and reduces the medicament cost. The new process for flotation of molybdenum, bismuth and sulfur obtains test indexes that the molybdenum grade of molybdenum concentrate is 49.84%, the recovery rate is 85.33%, the bismuth grade of bismuth concentrate is 34.20%, the recovery rate is 81.05%, the sulfur grade of sulfur concentrate is 45.27%, and the recovery rate is 83.52%; the recovery rate of the molybdenum and bismuth concentrate is obviously improved, and the grade of the concentrate is also improved; realizes the recycling of part of the mineral processing wastewater and reduces the environmental protection pressure.
Description
Technical Field
The invention relates to the technical field of improving the beneficiation indexes of molybdenum, bismuth and sulfur and recycling wastewater, in particular to a method for improving the beneficiation indexes of molybdenum, bismuth and sulfur and recycling wastewater.
Background
In a complex tungsten-molybdenum-bismuth-fluorite polymetallic ore, molybdenum mainly is molybdenite, bismuth mainly is bismuth glonasite, the molybdenite and the bismuth glonasite are closely symbiotic, and because the problem of tungsten over-crushing is considered, the grinding fineness is 78.0 percent of-74 mu m, magnetic separation and deferrization are carried out after ore grinding, and the ore after deferrization is concentrated to be used as flotation feeding ore. The flotation process adopted for recovering the sulphide ore comprises the following steps: performing equal-flotation of molybdenum and bismuth to obtain equal-flotation mixed rough concentrate, and performing mixed flotation of bismuth and sulfur to obtain bismuth and sulfur mixed-flotation rough concentrate. And performing molybdenum-bismuth separation on the molybdenum-bismuth and other floating mixed rough concentrates to obtain molybdenum concentrates, and enabling tailings to enter desiliconized bismuth concentration operation to obtain desiliconized bismuth concentrates. And (4) leading the tailings of the desiliconized bismuth concentration operation and the bismuth-sulfur mixed floating rough concentrate to enter the bismuth desulfurization concentration operation. And (4) performing desulfurization bismuth concentration operation on the bismuth-sulfur mixed floating rough concentrate to obtain a desulfurization bismuth concentrate, wherein the tailings are the sulfur concentrate. For raw ore grades of Mo0.05%, Bi0.11% and S0.87%, the industrial production indexes of 45.13% for Mo concentrate, 72.60% for recovery rate, 31.72% for total Bi concentrate, 67.64% for recovery rate, 39.52% for S concentrate and 80.75% for recovery rate are obtained by the beneficiation flotation process.
The prior art comprises the following implementation processes: carrying out primary roughing on molybdenum, bismuth and the like, adding 800g/t of water glass into the roughing, adding 15g/t of pine oil into the roughing, and carrying out flotation to obtain foam, namely molybdenum, bismuth and the like floating rough concentrate; the bismuth-sulfur mixed flotation is divided into primary rough concentration, two times of scavenging, the middlings return sequentially, 600g/t of sodium carbonate, 80g/t of ethion and 20g/t of pine oil are added into the rough concentration, 15g/t of ethion and 5g/t of pine oil are added into the first scavenging, 10g/t of ethion and 2g/t of pine oil are added into the second scavenging, and bismuth-sulfur mixed flotation rough concentrate is obtained; performing molybdenum-bismuth separation on the molybdenum-bismuth and other floating rough concentrates, wherein the molybdenum-bismuth and other floating rough concentrates are divided into primary rough concentration, six times of fine concentration and two times of scavenging, the middlings return sequentially, and water glass 300g/t, sodium sulfide 200g/t and kerosene 160g/t are added in the rough concentration; scavenging one, namely adding 5g/t of pinitol oil; adding 2g/t of pine oil in the second scavenging; selecting one, adding 150g/t of sodium sulfide; selecting II, adding 150g/t of sodium sulfide and 10g/t of kerosene; selecting III, adding 100g/t of sodium sulfide; selecting four, adding 100g/t of sodium sulfide; selecting five materials, adding 50g/t of sodium sulfide and 5g/t of kerosene; selecting six blanks; and obtaining the final molybdenum concentrate. The method comprises the following steps of (1) enabling molybdenum and bismuth separation tailings to enter desiliconization and bismuth concentration operation, wherein the desiliconization and bismuth separation operation comprises primary roughing, twice scavenging and three times of concentration, returning middlings in sequence, adding 150g/t of activated carbon into the roughing, stirring and removing chemicals for reaction for 1 hour, and then adding 150g/t of lime, 6g/t of NaCN, 15g/t of ethide and 3g/t of pine oil; scavenging one, adding 5g/t of ethidium and 1g/t of pinitol oil; adding 3g/t of ethidium and nitrogen into the second scavenging; selecting a first blank, a second blank and a third blank; and obtaining the desiliconized bismuth concentrate. Performing desulfurization bismuth concentration operation on bismuth-sulfur mixed floating rough concentrate, wherein the operation comprises one-time rough concentration, two-time scavenging and three-time concentration, returning middlings in sequence, adding 120g/t of activated carbon into the rough concentration, stirring, removing the pesticide, reacting for 1 hour, and adding 180g/t of lime, 8g/t of NaCN, 10g/t of ethidene nitrogen and 3g/t of pine oil; scavenging one, adding 5g/t of ethidium and 2g/t of pinitol oil; second scavenging blank scavenging; selecting a first blank, a second blank and a third blank; and obtaining the desulfurized bismuth concentrate, namely the tailings, namely the sulfur concentrate.
2. Has problems in that
Low molybdenum-bismuth recovery rate, large medicament dosage, high cost, complex process and great operation difficulty. Meanwhile, the medicament components of the wastewater are complex, the wastewater is not recycled, and the environmental protection pressure is high.
3. Analysis of causes
(1) The recovery rate of molybdenum and bismuth is low, and mainly part of molybdenum and bismuth are not dissociated.
(2) Due to the complex process flow, the beneficiation reagent has high cost, great operation difficulty and difficult wastewater recycling.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a method for improving the beneficiation index of molybdenum, bismuth and sulfur and the recycling of wastewater, and solves the problems of low recovery rate of molybdenum and bismuth, large medicament dosage, high cost, complex process and high operation difficulty in the background technology. Meanwhile, the medicament components of the wastewater are complex, the wastewater is not recycled, and the environmental protection pressure is high.
In order to achieve the purpose, the invention is realized by the following technical scheme: a method for improving molybdenum-bismuth-sulfur beneficiation indexes and wastewater recycling comprises the following steps:
s1, performing molybdenum, bismuth and sulfur full-flotation roughing operation: the method comprises the steps of rough concentration, fine concentration and scavenging for three times, and middlings are returned sequentially;
s2, regrinding the molybdenum, bismuth and sulfur rough concentrate: the molybdenum-bismuth-sulfur mixed rough concentrate is reground through a stirring mill, and then molybdenum-bismuth-sulfur separation is carried out;
s3, molybdenum, bismuth and sulfur separation: the method comprises the following steps of primary roughing, tertiary concentration and primary scavenging, wherein middlings sequentially return, foams are scraped out to form molybdenum-bismuth bulk concentrates, and tailings are sulfur concentrates;
s4, molybdenum and bismuth separation: the method comprises the steps of primary roughing, tertiary concentration and primary scavenging, wherein middlings sequentially return, foams are scraped out to obtain molybdenum concentrate, and tailings are bismuth concentrate.
Optionally, in the step S1, during the molybdenum-bismuth-sulfur full-flotation roughing operation, 600g/t sodium carbonate, 800g/t water glass, 80g/t ethidium-nitrogen and 20g/t pine oil are added for roughing.
Optionally, in the step S1, in the molybdenum bismuth sulfur full-flotation roughing operation, the first concentration step is to add 100g/t of water glass, the first scavenging step is to add 15g/t of ethyl sulfur nitrogen and 5g/t of pine oil, the second scavenging step is to add 5g/t of ethyl sulfur nitrogen and 2g/t of pine oil, and the first concentrate tailings and the scavenging concentrate are returned to the roughing operation to obtain the first concentrate molybdenum bismuth sulfur mixed rough concentrate.
Optionally, in the step S2, in the regrinding of the molybdenum-bismuth-sulfur rough concentrate, ore is ground by adopting a stirring mill, and the content of-74 μm is 90.0%.
Optionally, in the step S3, in the molybdenum bismuth-sulfur separation operation, 300g/t of activated carbon is added for roughing, the stirring and pesticide removal reaction is performed for 10min, then 500g/t of lime is added, the stirring reaction is performed for 30min, then 10g/t of ethide is added, and the molybdenum bismuth-sulfur separation roughing operation is performed.
Optionally, in the step S3, in the operation of separating molybdenum, bismuth and sulfur, 5g/t of ethidium and nitrogen are added to perform scavenging.
Optionally, in the step S3, in the molybdenum bismuth-sulfur separation operation, three times of concentration are performed, the middling sequence is returned, and 300g/t lime is added in the first step of concentration; selecting II, adding 200g/t lime; and thirdly, fine selection, namely adding 100g/t of lime to obtain the molybdenum-bismuth bulk concentrate.
Optionally, in the step S4 and the molybdenum-bismuth separation operation, 100g/t of sodium sulfide is added for roughing, and a blank is swept.
Optionally, in the step S4, in the molybdenum-bismuth separation operation, three times of concentration are performed, the middling sequence is returned, and 80g/t of sodium sulfide is added in the first concentration; selecting II, adding 50g/t of sodium sulfide; and adding 30g/t of sodium sulfide into the third fine selection step to obtain foam, namely molybdenum concentrate, and obtaining the tailings at the bottom of the tank, namely bismuth concentrate.
The invention provides a method for improving molybdenum, bismuth and sulfur beneficiation indexes and wastewater recycling, which has the following beneficial effects:
the novel process for flotation of molybdenum, bismuth and sulfur is simple in process, reduces operation difficulty, improves molybdenum and bismuth ore dressing indexes, achieves waste water recycling, reduces environmental protection pressure and reduces medicament cost.
The new process for flotation of molybdenum, bismuth and sulfur obtains test indexes that the molybdenum grade of molybdenum concentrate is 49.84%, the recovery rate is 85.33%, the bismuth grade of bismuth concentrate is 34.20%, the recovery rate is 81.05%, the sulfur grade of sulfur concentrate is 45.27%, and the recovery rate is 83.52%; the recovery rate of the molybdenum and bismuth concentrate is obviously improved, and the grade of the concentrate is also improved; the flow is simplified, and the operation is simplified; realizes the recycling of part of the mineral processing wastewater and reduces the environmental protection pressure.
Greatly reduces the cost of the beneficiation reagent, and the cost of the reagent is reduced from the original 8.0 yuan/ton raw ore to 1.6 yuan/ton raw ore.
Drawings
FIG. 1 is a schematic diagram of the principle and process of the original molybdenum-bismuth-sulfur beneficiation process of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1, the present invention provides a technical solution: a method for improving molybdenum-bismuth-sulfur beneficiation indexes and wastewater recycling comprises the following steps:
s1, performing molybdenum, bismuth and sulfur full-flotation roughing operation: the method comprises the steps of rough concentration, fine concentration and scavenging for three times, and middlings are returned sequentially;
s2, regrinding the molybdenum, bismuth and sulfur rough concentrate: the molybdenum-bismuth-sulfur mixed rough concentrate is reground through a stirring mill, and then molybdenum-bismuth-sulfur separation is carried out;
s3, molybdenum, bismuth and sulfur separation: the method comprises the following steps of primary roughing, tertiary concentration and primary scavenging, wherein middlings sequentially return, foams are scraped out to form molybdenum-bismuth bulk concentrates, and tailings are sulfur concentrates;
s4, molybdenum and bismuth separation: the method comprises the steps of primary roughing, tertiary concentration and primary scavenging, wherein middlings sequentially return, foams are scraped out to obtain molybdenum concentrate, and tailings are bismuth concentrate.
In the invention: step S1, adding 600g/t sodium carbonate, 800g/t water glass, 80g/t ethidium nitrate and 20g/t pine alcohol oil in the molybdenum-bismuth-sulfur full-flotation roughing operation, and roughing.
In the invention: and step S1, in the molybdenum-bismuth-sulfur full-flotation roughing operation, scavenging twice, adding 15g/t of ethyl sulfur nitrogen and 5g/t of pine oil in the first scavenging, adding 5g/t of ethyl sulfur nitrogen and 2g/t of pine oil in the second scavenging, and sequentially returning middlings to obtain the molybdenum-bismuth-sulfur mixed rough concentrate.
In the invention: and step S1, in the molybdenum-bismuth-sulfur full-flotation roughing operation, adding 100g/t of water glass in the first concentration step, adding 15g/t of ethyl sulfur nitrogen and 5g/t of pine oil in the first scavenging step, adding 5g/t of ethyl sulfur nitrogen and 2g/t of pine oil in the second scavenging step, and returning the first concentrate tailings and the scavenging concentrate to the roughing operation to obtain the first concentrate molybdenum-bismuth-sulfur mixed rough concentrate.
In the invention: and step S2, in the regrinding of the molybdenum-bismuth-sulfur rough concentrate, stirring and grinding are adopted to grind the ore until the content of-74 mu m accounts for 90.0 percent.
In the invention: and step S3, in the molybdenum bismuth-sulfur separation operation, adding 300g/t of activated carbon for roughing, stirring for pesticide removal reaction for 10min, adding 500g/t of lime again, stirring for reaction for 30min, adding 10g/t of ethide, and performing the molybdenum bismuth-sulfur separation roughing operation.
In the invention: and step S3, adding 5g/t of ethidium-sulfur in the molybdenum-bismuth-sulfur separation operation, and performing scavenging.
In the invention: s3, carrying out concentration for three times in the molybdenum-bismuth-sulfur separation operation, returning the middling sequence, and adding 300g/t lime into the first concentration; selecting II, adding 200g/t lime; and thirdly, fine selection, namely adding 100g/t of lime to obtain the molybdenum-bismuth bulk concentrate.
In the invention: and step S4, adding 100g/t of sodium sulfide in the molybdenum-bismuth separation operation, roughing, and scavenging a blank.
In the invention: s4, carrying out concentration for three times in the molybdenum-bismuth separation operation, returning the middlings in sequence, and adding 80g/t of sodium sulfide into the first concentration; selecting II, adding 50g/t of sodium sulfide; and adding 30g/t of sodium sulfide into the third fine selection step to obtain foam, namely molybdenum concentrate, and obtaining the tailings at the bottom of the tank, namely bismuth concentrate.
The method for improving the beneficiation indexes of molybdenum, bismuth and sulfur and recycling the wastewater comprises the following steps:
firstly, when the grinding fineness is 200 meshes and accounts for 78.0%, carrying out molybdenum-bismuth-sulfur full-floating to obtain molybdenum-bismuth-sulfur full-floating rough concentrate, carrying out stirring grinding and regrinding on the molybdenum-bismuth-sulfur full-floating rough concentrate to ensure that the grinding fineness is-200 meshes and accounts for 90.0%, and then carrying out molybdenum-bismuth-sulfur separation to obtain molybdenum-bismuth bulk concentrate, wherein tailings are sulfur concentrate; secondly, performing molybdenum-bismuth separation on the molybdenum-bismuth bulk concentrate to obtain a foam product, namely molybdenum concentrate, and obtaining bottom tank tailings, namely bismuth concentrate; and secondly, recycling the bismuth concentrate settled overflow water for molybdenum-bismuth separation operation, fully utilizing residual Na2S medicament, and obtaining test indexes of 49.84% of molybdenum grade and 85.33% of recovery rate of the molybdenum concentrate, 34.20% of bismuth grade and 81.05% of recovery rate of the bismuth concentrate, 45.27% of S grade and 83.52% of recovery rate of the sulfur concentrate by the beneficiation process. The cost of the medicament is reduced from the original 8.0 yuan/ton/raw ore to 1.6 yuan/ton/raw ore.
The method for improving the beneficiation indexes of molybdenum, bismuth and sulfur and recycling the wastewater is applied as follows:
the method is applied to a 3000t/d polymetallic ore dressing plant in a persimmon bamboo garden, and comprises the steps of roughing raw ore grades of Mo0.05%, Bi0.11% and S0.87%, grinding fineness of-74 mu m accounts for 75.0%, performing molybdenum-bismuth-sulfur full-flotation roughing operation, including roughing, roughing and scavenging for three times, wherein 620g/t of sodium carbonate, 900g/t of water glass, 90g/t of ethyl sulfur nitrogen and 25g/t of pine oil are added in the roughing, 200g/t of water glass is added in the first dressing, 12g/t of ethyl sulfur nitrogen and 4g/t of pine oil are added in the first scavenging, 6g/t of ethyl sulfur nitrogen and 3g/t of pine oil are added in the second scavenging, and middlings are sequentially returned to obtain the molybdenum-bismuth-sulfur mixed rough concentrate. The molybdenum-bismuth-sulfur mixed rough concentrate is ground by stirring and grinding to reach the content of-74 mu m accounting for 91.0 percent, and then molybdenum-bismuth-sulfur separation is carried out. The molybdenum-bismuth-sulfur separation operation comprises primary roughing, tertiary fine selection and primary scavenging, middlings are sequentially returned, 400g/t of activated carbon is added in the roughing, the mixture is stirred and subjected to pesticide removal reaction for 15min, 600g/t of lime is added, the mixture is stirred and subjected to reaction for 30min, and 8g/t of ethide is added; scavenging one, adding 3g/t of ethidium and nitrogen; selecting one, and adding 200g/t lime; selecting II, adding 150g/t lime; selecting three, adding 100g/t lime; the obtained foam is the molybdenum-bismuth bulk concentrate, and the tailings are the sulfur concentrate. And performing molybdenum-bismuth separation operation on the molybdenum-bismuth bulk concentrate, wherein the molybdenum-bismuth bulk concentrate is divided into primary roughing, tertiary concentration and primary scavenging, and middlings are returned sequentially. Adding 120g/t of sodium sulfide in roughing, scavenging a blank, adding 70g/t of sodium sulfide in first concentration, adding 50g/t of sodium sulfide in second concentration, adding 40g/t of sodium sulfide in third concentration, wherein foam is molybdenum concentrate, and tailings are bismuth concentrate.
Namely: the industrial application is carried out in a persimmon bamboo garden Dongbo 3000t/d polymetallic concentrating mill, the Mo grade of the molybdenum concentrate is 48.05 percent, and the recovery rate is 84.66 percent; the Bi grade of the bismuth concentrate is 34.60 percent, the recovery rate is 81.75 percent, the S grade of the sulfur concentrate is 44.79 percent, and the recovery rate is 83.84 percent. The dosage of the new process medicament for the molybdenum-bismuth-sulfur ore dressing is greatly reduced compared with the original process, and the medicament cost of the new process medicament for the ore dressing can be saved for the factory by more than six hundred and ten thousand yuan each year. Meanwhile, the bismuth concentrate precipitation overflow water containing a large amount of beneficiation reagents is reused for molybdenum-bismuth separation operation, so that the environmental protection pressure is effectively reduced.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (9)
1. The method for improving the beneficiation indexes of molybdenum, bismuth and sulfur and recycling the wastewater is characterized by comprising the following steps of:
s1, performing molybdenum, bismuth and sulfur full-flotation roughing operation: the method comprises the steps of rough concentration, fine concentration and scavenging for three times, and middlings are returned sequentially;
s2, regrinding the molybdenum, bismuth and sulfur rough concentrate: the molybdenum-bismuth-sulfur mixed rough concentrate is reground through a stirring mill, and then molybdenum-bismuth-sulfur separation is carried out;
s3, molybdenum, bismuth and sulfur separation: the method comprises the following steps of primary roughing, tertiary concentration and primary scavenging, wherein middlings sequentially return, foams are scraped out to form molybdenum-bismuth bulk concentrates, and tailings are sulfur concentrates;
s4, molybdenum and bismuth separation: the method comprises the steps of primary roughing, tertiary concentration and primary scavenging, wherein middlings sequentially return, foams are scraped out to obtain molybdenum concentrate, and tailings are bismuth concentrate.
2. The method for improving the beneficiation indicator of molybdenum, bismuth and sulfur and the recycling of wastewater according to claim 1, which is characterized in that: and step S1, adding 600g/t sodium carbonate, 800g/t water glass, 80g/t ethidium nitrate and 20g/t pine alcohol oil in the molybdenum-bismuth-sulfur full-flotation roughing operation, and roughing.
3. The method for improving the beneficiation indicator of molybdenum, bismuth and sulfur and the recycling of wastewater according to claim 1, which is characterized in that: and S1, in the molybdenum-bismuth-sulfur full-flotation roughing operation, adding 100g/t of water glass in the first concentration step, adding 15g/t of ethyl sulfur nitrogen and 5g/t of pine oil in the first scavenging step, adding 5g/t of ethyl sulfur nitrogen and 2g/t of pine oil in the second scavenging step, and returning the first concentrate tailings and the scavenging concentrate to the roughing operation to obtain the first concentrate molybdenum-bismuth-sulfur mixed rough concentrate.
4. The method for improving the beneficiation indicator of molybdenum, bismuth and sulfur and the recycling of wastewater according to claim 1, which is characterized in that: in the step S2, in the regrinding of the molybdenum-bismuth-sulfur rough concentrate, the ore is ground by adopting stirring grinding, and the content of-74 mu m is up to 90.0%.
5. The method for improving the beneficiation indicator of molybdenum, bismuth and sulfur and the recycling of wastewater according to claim 1, which is characterized in that: and S3, in the molybdenum bismuth-sulfur separation operation, adding 300g/t of activated carbon for roughing, stirring for pesticide removal reaction for 10min, adding 500g/t of lime, stirring for reaction for 30min, adding 10g/t of ethide, and performing molybdenum bismuth-sulfur separation roughing operation.
6. The method for improving the beneficiation indicator of molybdenum, bismuth and sulfur and the recycling of wastewater according to claim 1, which is characterized in that: and S3, adding 5g/t of ethidium-sulfur nitrogen in the molybdenum-bismuth-sulfur separation operation, and performing scavenging.
7. The method for improving the beneficiation indicator of molybdenum, bismuth and sulfur and the recycling of wastewater according to claim 1, which is characterized in that: in the step S3, in the molybdenum bismuth-sulfur separation operation, concentration is carried out for three times, middlings are returned in sequence, and lime is added at 300g/t in the first concentration step; selecting II, adding 200g/t lime; and thirdly, fine selection, namely adding 100g/t of lime to obtain the molybdenum-bismuth bulk concentrate.
8. The method for improving the beneficiation indicator of molybdenum, bismuth and sulfur and the recycling of wastewater according to claim 1, which is characterized in that: in the step S4 and the molybdenum-bismuth separation operation, 100g/t of sodium sulfide is added for roughing, and a blank is swept.
9. The method for improving the beneficiation indicator of molybdenum, bismuth and sulfur and the recycling of wastewater according to claim 1, which is characterized in that: in the step S4 and the molybdenum-bismuth separation operation, the concentration is carried out for three times, the middling sequence is returned, and 80g/t of sodium sulfide is added in the first concentration; selecting II, adding 50g/t of sodium sulfide; and adding 30g/t of sodium sulfide into the third fine selection step to obtain foam, namely molybdenum concentrate, and obtaining the tailings at the bottom of the tank, namely bismuth concentrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011106633.2A CN112337656A (en) | 2020-10-15 | 2020-10-15 | Method for improving molybdenum-bismuth-sulfur beneficiation index and wastewater recycling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011106633.2A CN112337656A (en) | 2020-10-15 | 2020-10-15 | Method for improving molybdenum-bismuth-sulfur beneficiation index and wastewater recycling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112337656A true CN112337656A (en) | 2021-02-09 |
Family
ID=74360851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011106633.2A Pending CN112337656A (en) | 2020-10-15 | 2020-10-15 | Method for improving molybdenum-bismuth-sulfur beneficiation index and wastewater recycling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112337656A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114192286A (en) * | 2021-12-01 | 2022-03-18 | 湖南柿竹园有色金属有限责任公司 | Efficient nontoxic molybdenum, bismuth and sulfur recovery method |
| CN115888974A (en) * | 2022-12-29 | 2023-04-04 | 江西下垄钨业有限公司 | Recovery and beneficiation method for polymetallic sulphide ore |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102580857A (en) * | 2012-02-17 | 2012-07-18 | 湖南有色金属研究院 | Concentration method of low-content molybdenum and bismuth in polymetallic ore |
| CN105189445A (en) * | 2013-03-15 | 2015-12-23 | 沙特基础全球技术有限公司 | Process for purification of diphenyl carbonate for the manufacturing of high quality polycarbonate |
| CN106944245A (en) * | 2017-03-29 | 2017-07-14 | 江西省宏兴选矿设备制造有限公司 | A kind of complicated many golden metallic ores of W, mo, bi fluorite select technique |
| CN207086120U (en) * | 2017-03-24 | 2018-03-13 | 赣州有色冶金研究所 | The separation system of molybdenum bismuth is reclaimed in multi-metal sulfide |
| CN109574263A (en) * | 2018-12-26 | 2019-04-05 | 湖南柿竹园有色金属有限责任公司 | A kind of processing of fluorite ore-dressing wastewater and reuse method |
-
2020
- 2020-10-15 CN CN202011106633.2A patent/CN112337656A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102580857A (en) * | 2012-02-17 | 2012-07-18 | 湖南有色金属研究院 | Concentration method of low-content molybdenum and bismuth in polymetallic ore |
| CN105189445A (en) * | 2013-03-15 | 2015-12-23 | 沙特基础全球技术有限公司 | Process for purification of diphenyl carbonate for the manufacturing of high quality polycarbonate |
| CN207086120U (en) * | 2017-03-24 | 2018-03-13 | 赣州有色冶金研究所 | The separation system of molybdenum bismuth is reclaimed in multi-metal sulfide |
| CN106944245A (en) * | 2017-03-29 | 2017-07-14 | 江西省宏兴选矿设备制造有限公司 | A kind of complicated many golden metallic ores of W, mo, bi fluorite select technique |
| CN109574263A (en) * | 2018-12-26 | 2019-04-05 | 湖南柿竹园有色金属有限责任公司 | A kind of processing of fluorite ore-dressing wastewater and reuse method |
Non-Patent Citations (1)
| Title |
|---|
| 别雪祥等: ""某钼铋硫混合精矿浮选分离试验"", 《金属矿山》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114192286A (en) * | 2021-12-01 | 2022-03-18 | 湖南柿竹园有色金属有限责任公司 | Efficient nontoxic molybdenum, bismuth and sulfur recovery method |
| CN115888974A (en) * | 2022-12-29 | 2023-04-04 | 江西下垄钨业有限公司 | Recovery and beneficiation method for polymetallic sulphide ore |
| CN115888974B (en) * | 2022-12-29 | 2024-04-05 | 江西下垄钨业有限公司 | Polymetallic sulphide ore recovery beneficiation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Lü et al. | Separation of chalcopyrite and pyrite from a copper tailing by ammonium humate | |
| CN112337656A (en) | Method for improving molybdenum-bismuth-sulfur beneficiation index and wastewater recycling | |
| CN104209183A (en) | Beneficiation method for color molybdenum lead ores | |
| US20130284642A1 (en) | Method of beneficiation of phosphate | |
| CN106391318B (en) | Method for sorting high-mud copper-lead oxide polymetallic ores | |
| CN102151607A (en) | Joint magnetic flotation sorting method for complex magnetic pyrite copper-containing pyrite ore | |
| CN103447145A (en) | Ore dressing method for recycling sulfur and arsenic from tin-lean multi-metal sulfide flotation tailings | |
| CN111617884B (en) | Flotation separation method for copper, lead, zinc and arsenic in complex multi-metal sulfide ore | |
| CN107282287A (en) | A kind of recycling water utilization method before copper-molybdenum Xuan Chang factories | |
| CN107971127A (en) | The separated beneficiation method of bismuth sulphur in a kind of bismuth iron concentrate | |
| US2914173A (en) | Method of processing phosphate ore to recover metallic minerals | |
| CN111250270A (en) | Poisonous sand combined inhibitor and beneficiation method for high-sulfur high-arsenic lead-zinc silver ore | |
| CN108339672B (en) | Process method for recovering potassium feldspar in potassium-rich slate | |
| CN111545352B (en) | Beneficiation method for associated low-grade gold and cobalt in iron ore | |
| CN112354683A (en) | Method for recycling fluorite from fluorite concentration tailings | |
| CN110918247A (en) | Sorting method of low-grade tungsten black and white fine mud | |
| CN109865600A (en) | A method of lead preferentially being floated in lead-zinc sulfide ore flotation using hybrid collector | |
| CN114011582B (en) | Flotation method for improving beneficiation index of gold-bearing copper sulfide ore | |
| US4584096A (en) | Process to beneficiate phosphate and sand products from debris and phosphate tailing ores | |
| CN103521504A (en) | Method for comprehensively recovering gold and zinc from high leaching residue and recycling wastewater | |
| CN105689108B (en) | Comprehensive recovery method of lead in cyaniding leaching process of flotation gold concentrate | |
| CN111495579B (en) | Method for recovering tungsten and tin from fine mud and coarse sand | |
| CN108339658B (en) | Process method for recovering sulfur concentrate from potassium-rich slate | |
| CN113351360A (en) | Beneficiation method for high-sulfur magnetite ore of low-grade copper | |
| CN110052327B (en) | Method for sorting zinc oxide-containing high-sulfur high-copper zinc concentrate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210209 |