CN110773328A - Cyanide-free efficient combined sorting method for preferentially floating copper - Google Patents
Cyanide-free efficient combined sorting method for preferentially floating copper Download PDFInfo
- Publication number
- CN110773328A CN110773328A CN201910795659.3A CN201910795659A CN110773328A CN 110773328 A CN110773328 A CN 110773328A CN 201910795659 A CN201910795659 A CN 201910795659A CN 110773328 A CN110773328 A CN 110773328A
- Authority
- CN
- China
- Prior art keywords
- copper
- flotation
- tank
- middling
- cyanide
- 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
- B03D1/00—Flotation
- B03D1/08—Subsequent treatment of concentrated product
- B03D1/082—Subsequent treatment of concentrated product of the froth product, e.g. washing
-
- 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
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/02—Collectors
-
- 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
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/04—Frothers
-
- 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
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/06—Depressants
-
- 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 cyanide-free efficient combined sorting method for preferentially floating copper, which adopts a 12-tank 6A flotation machine and a 2-tank 5A flotation machine to perform copper flotation and specifically comprises the following steps: s1, primary roughing, S2, primary fine selection, S3, secondary fine selection, S4, tertiary fine selection, S5, scavenging one, two, three and S6, and collection.
Description
Technical Field
The invention relates to the technical field of cyanide-free high-efficiency combined sorting of copper flotation, in particular to a cyanide-free high-efficiency combined sorting method of preferential copper flotation.
Background
Because the ore contains other metal elements such as lead, zinc and the like, certain interference is brought to the separation during copper concentration, and the main reasons for causing the interference are as follows: the method is characterized in that useful minerals are compact and intergrowth, the content of sulfur and iron is high, other metal minerals are easily activated by copper ions and lead ions, the floatability of the metal minerals is similar to that of the copper minerals, when the original copper, lead and zinc minerals coexist, the mixed flotation of copper and lead is adopted to inhibit zinc and sulfur, and then the zinc and sulfur are activated to carry out the mixed flotation process.
Disclosure of Invention
The invention provides a cyanide-free efficient combined sorting method for preferentially floating copper, which can effectively solve the problems that when the existing copper-lead-zinc minerals are proposed to coexist in the background art, a process of inhibiting zinc and sulfur by mixing and floating copper and lead and activating zinc to carry out mixing and floating zinc and sulfur is adopted, and in order to take out qualified copper concentrate, a large amount of lime and a hypertoxic medicament sodium cyanide are required for inhibiting copper or lead in a selection section.
In order to achieve the purpose, the invention provides the following technical scheme: a cyanide-free efficient combined sorting method for preferentially floating copper adopts a 12-tank 6A flotation machine and a 2-tank 5A flotation machine to perform copper flotation, and specifically comprises the following steps:
s1, primary rough selection: before roughing, the slurry is mixed through two stirring barrels, Z-200 is added into the first stirring barrel, a foaming agent BK205 is added into the second stirring barrel, and then flotation separation is added;
s2, primary selection: adding zinc sulfate, sodium sulfite and sodium humate into a flotation tank, and carrying out primary fine selection;
s3, secondary selection: adding zinc sulfate, sodium sulfite and sodium humate into a flotation tank, performing secondary concentration, and performing flotation to obtain copper middling 1;
s4, selecting for three times: adding zinc sulfate, sodium sulfite and sodium humate into a flotation tank, carrying out concentration for three times, and carrying out flotation to obtain copper concentrate and copper middling 2;
s5, selecting one, two and three: adding Z-200 and a foaming agent BK205 into the first scavenging and the second scavenging for flotation to obtain copper tailings by flotation;
s6, collecting: the obtained copper concentrate, copper middling 1, copper middling 2 and copper tailings are separately collected.
According to the technical scheme, in the step S1, a 4-tank 6A flotation tank is adopted for primary roughing to add a medicament;
the step S2 adopts a 2-tank 6A flotation tank;
the step S3 adopts a 1-tank 5A flotation machine;
the step S4 adopts a 1-tank 5A flotation machine;
the step S5 employs a 2-tank 6A flotation machine.
According to the technical scheme, the zinc sulfate, the sodium sulfite and the sodium humate in the steps S2 and S3 are 180-220g/t zinc sulfate, 180-220g/t sodium sulfite and 45-55g/t sodium humate.
According to the technical scheme, the zinc sulfate, the sodium sulfite and the sodium humate in the step S4 are 170g/t of zinc sulfate 130-.
According to the technical scheme, the capture agent in the step S1 is Z-200, the density of the Z-200 is 3d, and the density of the BK205 is 1 d.
According to the technical scheme, in the step S5, the capture agent is Z-200, the density of Z-200 is 1d, and the density of BK205 is 1 d.
According to the technical scheme, the slurry is mixed by the stirrer in the step S1, and the rotating speed is 1500-2000 r/min.
According to the technical scheme, the weight of the flotation ore is recorded in the step S1, and the copper concentrate, the copper middling 1, the copper middling 2 and the copper tailings are weighed and the CU grade is detected in the step S6.
According to the technical scheme, in the step S6, the values of the copper concentrate, the copper middling 1, the copper middling 2 and the copper tailings after weighing and CU grade detection are recorded and tabulated.
According to the technical scheme, in the step S6, the copper concentrate, the copper middling 1, the copper middling 2 and the copper tailings are weighed, and then divided by the weight recorded in the step S1 of flotation ore, so that the recovery rate is calculated.
Compared with the prior art, the invention has the beneficial effects that: the invention has scientific and reasonable structure and safe and convenient use, adopts the method that copper and part of lead and zinc with good floatability are preferentially floated, then inhibits the lead and the zinc in a fine separation section, does not need to add lime and hypertoxic medicaments, adopts cyanide-free combined inhibitor to replace lime and sodium cyanide, adopts Z-200 and foaming agent BK205 as a cyanide-free high-efficiency combined medicament as a preferential floating copper collecting agent, and adopts combined inhibitors zinc sulfate, sodium sulfite and sodium humate as an inhibitor, and is suitable for popularization and application according to the principle that the mineral separation production cost is low and the environmental protection is not influenced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
In the drawings:
FIG. 1 is a schematic flow chart of the steps of the present invention;
FIG. 2 is a schematic illustration of the disseminated nature of chalcopyrite and tramp minerals in the copper concentrate of the invention;
FIG. 3 is a schematic illustration of the disseminated nature of the chalcopyrite, covellite and tramp minerals in the copper concentrate of the invention;
figure 4 is a schematic representation of the loss of chalcopyrite in tailings of the present invention in the form of a gangue mineral inclusion and intergrowth.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example (b): as shown in fig. 1, the invention provides a technical scheme of a cyanide-free high-efficiency combined sorting method for preferentially floating copper, which adopts a 12-tank 6A flotation machine and a 2-tank 5A flotation machine to perform copper flotation, and specifically comprises the following steps:
s1, primary rough selection: before roughing, the slurry is mixed through two stirring barrels, Z-200 is added into the first stirring barrel, a foaming agent BK205 is added into the second stirring barrel, and then flotation separation is added;
s2, primary selection: adding zinc sulfate, sodium sulfite and sodium humate into a flotation tank, and carrying out primary fine selection;
s3, secondary selection: adding zinc sulfate, sodium sulfite and sodium humate into a flotation tank, performing secondary concentration, and performing flotation to obtain copper middling 1;
s4, selecting for three times: adding zinc sulfate, sodium sulfite and sodium humate into a flotation tank, carrying out concentration for three times, and carrying out flotation to obtain copper concentrate and copper middling 2;
s5, selecting one, two and three: adding Z-200 and a foaming agent BK205 into the first scavenging and the second scavenging for flotation to obtain copper tailings by flotation;
s6, collecting: the obtained copper concentrate, copper middling 1, copper middling 2 and copper tailings are separately collected.
According to the technical scheme, in the step S1, a 4-tank 6A flotation tank is adopted for primary roughing to add a medicament;
step S2 employs a 2-tank 6A flotation tank;
step S3 using a 1-tank 5A flotation machine;
step S4 using a 1-tank 5A flotation machine;
step S5 used a 2 tank 6A flotation machine.
According to the technical scheme, zinc sulfate, sodium sulfite and sodium humate in the steps S2 and S3 are 200g/t of zinc sulfate, 200g/t of sodium sulfite and 50g/t of sodium humate.
According to the technical scheme, zinc sulfate, sodium sulfite and sodium humate in the step S4 are 150g/t zinc sulfate, 150g/t sodium sulfite and 30g/t sodium humate.
According to the technical scheme, the capture agent in the step S1 is Z-200, the density of the Z-200 is 3d, and the density of the BK205 is 1 d.
According to the technical scheme, the capture agent in the step S5 is Z-200, the density of the Z-200 is 1d, and the density of the BK205 is 1 d.
According to the technical scheme, in the step S1, the slurry is mixed by a stirrer, and the rotating speed is 1500 r/min.
According to the technical scheme, the weight of the flotation ore is recorded in the step S1, and the copper concentrate, the copper middling 1, the copper middling 2 and the copper tailings are weighed and the CU grade is detected in the step S6.
According to the technical scheme, in the step S6, the values of the copper concentrate, the copper middling 1, the copper middling 2 and the copper tailings after weighing and CU grade detection are recorded and tabulated.
According to the technical scheme, in the step S6, the copper concentrate, the copper middling 1, the copper middling 2 and the copper tailings are weighed, and then divided by the weight recorded in the step S1 flotation ore, so that the recovery rate is calculated.
The final open circuit test results were as follows:
| product name | Yield% | Cu grade% | Recovery rate of Cu% |
| Copper concentrate | 3.05 | 18.18 | 68.74 |
| Middling 1 | 79.1 | 0.31 | 17.42 |
| Middling 2 | 15.23 | 3.97 | 0.95 |
| Tailings | 2.62 | 0.05 | 12.89 |
| Ore feeding | 100.00 | 0.41 | 100.00 |
The index results of the copper concentrate in the copper-tin production are as follows:
from the table results, 6717T of raw ore is processed, the raw ore contains 0.2628 percent of Cu0.2628 percent, and the final packed copper concentrate 76.647T is obtained, the grade is Cu16.93 percent, the Cu metal content is 12.9786T, and the recovery rate is 73.52 percent of ore dressing index; the packed copper concentrate contains 728g/t of silver; the theoretical operation index of copper with the copper concentrate grade of Cu19.81 percent and the recovery rate of 72.20 percent is obtained.
Compared with the prior art, the invention has the beneficial effects that: the invention has scientific and reasonable structure and safe and convenient use, adopts the method that copper and part of lead and zinc with good floatability are preferentially floated, then inhibits the lead and the zinc in a fine separation section, does not need to add lime and hypertoxic medicaments, adopts cyanide-free combined inhibitor to replace lime and sodium cyanide, adopts Z-200 and foaming agent BK205 as a cyanide-free high-efficiency combined medicament as a preferential floating copper collecting agent, and adopts combined inhibitors zinc sulfate, sodium sulfite and sodium humate as an inhibitor, and is suitable for popularization and application according to the principle that the mineral separation production cost is low and the environmental protection is not influenced.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A cyanide-free efficient combined sorting method for preferentially floating copper is characterized in that: copper flotation is carried out by adopting a 12-tank 6A flotation machine and a 2-tank 5A flotation machine, and the method specifically comprises the following steps:
s1, primary rough selection: before roughing, the slurry is mixed through two stirring barrels, Z-200 is added into the first stirring barrel, a foaming agent BK205 is added into the second stirring barrel, and then flotation separation is added;
s2, primary selection: adding zinc sulfate, sodium sulfite and sodium humate into a flotation tank, and carrying out primary fine selection;
s3, secondary selection: adding zinc sulfate, sodium sulfite and sodium humate into a flotation tank, performing secondary concentration, and performing flotation to obtain copper middling 1;
s4, selecting for three times: adding zinc sulfate, sodium sulfite and sodium humate into a flotation tank, carrying out concentration for three times, and carrying out flotation to obtain copper concentrate and copper middling 2;
s5, selecting one, two and three: adding Z-200 and a foaming agent BK205 into the first scavenging and the second scavenging for flotation to obtain copper tailings by flotation;
s6, collecting: the obtained copper concentrate, copper middling 1, copper middling 2 and copper tailings are separately collected.
2. The cyanide-free high-efficiency combined sorting method for the preferentially floating copper according to claim 1, wherein in the step S1, a 4-tank 6A flotation tank is adopted for primary roughing and a chemical agent is added;
the step S2 adopts a 2-tank 6A flotation tank;
the step S3 adopts a 1-tank 5A flotation machine;
the step S4 adopts a 1-tank 5A flotation machine;
the step S5 employs a 2-tank 6A flotation machine.
3. The method for the cyanide-free high-efficiency combined sorting of the preferentially floated copper according to claim 1, wherein the zinc sulfate, sodium sulfite and sodium humate in the steps S2 and S3 are 180-220g/t zinc sulfate, 180-220g/t sodium sulfite and 45-55g/t sodium humate.
4. The method as claimed in claim 1, wherein the zinc sulfate, sodium sulfite and sodium humate in step S4 are zinc sulfate 130-170g/t, sodium sulfite 130-170g/t and sodium humate 25-35 g/t.
5. The cyanide-free high-efficiency combined sorting method for the preferentially floating copper according to claim 1, wherein the trapping agent in the step S1 is Z-200, the density of Z-200 is 3d, and the density of BK205 is 1 d.
6. The cyanide-free high-efficiency combined sorting method for the preferentially floating copper according to claim 1, wherein the trapping agent in the step S5 is Z-200, the density of Z-200 is 1d, and the density of BK205 is 1 d.
7. The method as claimed in claim 1, wherein the slurry mixing in step S1 is performed by a stirrer at a rotation speed of 1500-.
8. The method for the cyanide-free high-efficiency combined sorting of the priority copper flotation according to claim 1, wherein the flotation ore of step S1 records the weight of the flotation ore, and the copper concentrate, the copper middling 1, the copper middling 2 and the copper tailings are weighed and the CU grade is detected in step S6.
9. The cyanide-free high-efficiency combined sorting method for the copper concentrate with priority as claimed in claim 8, wherein the values of the copper concentrate, the copper middling 1, the copper middling 2 and the copper tailings after weighing and CU grade detection are recorded and tabulated in step S6.
10. The method of claim 8, wherein the copper concentrate, the copper middling 1, the copper middling 2 and the copper tailings are weighed in step S6 and then divided by the weight recorded in the flotation ore in step S1 to calculate the recovery rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910795659.3A CN110773328A (en) | 2019-08-27 | 2019-08-27 | Cyanide-free efficient combined sorting method for preferentially floating copper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910795659.3A CN110773328A (en) | 2019-08-27 | 2019-08-27 | Cyanide-free efficient combined sorting method for preferentially floating copper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110773328A true CN110773328A (en) | 2020-02-11 |
Family
ID=69383325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910795659.3A Pending CN110773328A (en) | 2019-08-27 | 2019-08-27 | Cyanide-free efficient combined sorting method for preferentially floating copper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110773328A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101507951A (en) * | 2009-03-24 | 2009-08-19 | 西藏中凯矿业有限公司 | Mineral separation process capable of separating copper, lead, zinc polymetal sulphide ore |
| CN102225369A (en) * | 2011-05-18 | 2011-10-26 | 河南省岩石矿物测试中心 | Beneficiation method for separating copper-lead-zinc multi-metal complex ore embedded with fine particles |
| CN102698877A (en) * | 2012-03-06 | 2012-10-03 | 湖南有色金属研究院 | Copper-lead separation flotation inhibitor and applications thereof |
| CN103817015A (en) * | 2014-03-20 | 2014-05-28 | 新巴尔虎右旗荣达矿业有限责任公司 | Copper and lead separating cyanide-chrome-free beneficiation method for low-grade multi-metal sulfide ore |
| CN104437836A (en) * | 2014-12-03 | 2015-03-25 | 紫金矿业集团股份有限公司 | Cyanide-free and chromium-free copper lead flotation separation method |
| CN105107636A (en) * | 2015-09-24 | 2015-12-02 | 北京矿冶研究总院 | Organic lead inhibitor and application thereof |
| CN106269205A (en) * | 2016-08-17 | 2017-01-04 | 西安西北有色地质研究院有限公司 | Copper and the separation method of lead sulfur in the copper, lead, zinc polymetal sulphide ore of the low lead of high-sulfur |
| CN107282312A (en) * | 2017-06-20 | 2017-10-24 | 厦门紫金矿冶技术有限公司 | A kind of fine copper-sulphide ores sorting process of disseminated grain size |
| CN110026293A (en) * | 2019-05-20 | 2019-07-19 | 北京矿冶科技集团有限公司 | A kind of method for floating containing secondary pig copper type high-sulfur copper/lead/zinc ore |
| CN110280395A (en) * | 2019-05-28 | 2019-09-27 | 西北矿冶研究院 | Low-sulfur copper-lead-zinc polymetallic ore sequential preferential flotation separation method |
-
2019
- 2019-08-27 CN CN201910795659.3A patent/CN110773328A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101507951A (en) * | 2009-03-24 | 2009-08-19 | 西藏中凯矿业有限公司 | Mineral separation process capable of separating copper, lead, zinc polymetal sulphide ore |
| CN102225369A (en) * | 2011-05-18 | 2011-10-26 | 河南省岩石矿物测试中心 | Beneficiation method for separating copper-lead-zinc multi-metal complex ore embedded with fine particles |
| CN102698877A (en) * | 2012-03-06 | 2012-10-03 | 湖南有色金属研究院 | Copper-lead separation flotation inhibitor and applications thereof |
| CN103817015A (en) * | 2014-03-20 | 2014-05-28 | 新巴尔虎右旗荣达矿业有限责任公司 | Copper and lead separating cyanide-chrome-free beneficiation method for low-grade multi-metal sulfide ore |
| CN104437836A (en) * | 2014-12-03 | 2015-03-25 | 紫金矿业集团股份有限公司 | Cyanide-free and chromium-free copper lead flotation separation method |
| CN105107636A (en) * | 2015-09-24 | 2015-12-02 | 北京矿冶研究总院 | Organic lead inhibitor and application thereof |
| CN106269205A (en) * | 2016-08-17 | 2017-01-04 | 西安西北有色地质研究院有限公司 | Copper and the separation method of lead sulfur in the copper, lead, zinc polymetal sulphide ore of the low lead of high-sulfur |
| CN107282312A (en) * | 2017-06-20 | 2017-10-24 | 厦门紫金矿冶技术有限公司 | A kind of fine copper-sulphide ores sorting process of disseminated grain size |
| CN110026293A (en) * | 2019-05-20 | 2019-07-19 | 北京矿冶科技集团有限公司 | A kind of method for floating containing secondary pig copper type high-sulfur copper/lead/zinc ore |
| CN110280395A (en) * | 2019-05-28 | 2019-09-27 | 西北矿冶研究院 | Low-sulfur copper-lead-zinc polymetallic ore sequential preferential flotation separation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102513215B (en) | Method for separating gold, silver and other metals and sulfur from waste cyanide tailings by floatation | |
| CN101884951B (en) | Combined mineral dressing technology of fine grain and micro grain cassiterite | |
| CN102489386B (en) | Method for separating fine cassiterite | |
| CN105435953B (en) | Beneficiation method for molybdenum-containing low-grade mixed copper ore | |
| CN100515576C (en) | Super fine lean lead-antimony-zinc flacculation carrier flotation technology | |
| CN101797531A (en) | Method for recovering valuable metal mineral in zinc tailing | |
| CN103381389A (en) | Production technology for improving secondary recovery rate of tailings | |
| CN109127115B (en) | Method for recovering lead-zinc mineral from high-sulfur lead-zinc ore tailings | |
| CN101920222A (en) | Improved method for cleaning tin rough concentrate | |
| CN109926196B (en) | Cyanide-free separation process for low-grade tin-lead-zinc multi-metal sulfide mineral lead-zinc | |
| CN108672101B (en) | Method for activating and floating sulfur in copper sulfide and sulfur ore copper separation tailings | |
| CN103909020A (en) | Flotation separation inhibitor and separation method of galena, pyrite and sphalerite | |
| CN102151607A (en) | Joint magnetic flotation sorting method for complex magnetic pyrite copper-containing pyrite ore | |
| CN103301934A (en) | Method for recovering fluorite in metal sulfide ore tailings | |
| CN112934479A (en) | Combined inhibitor and micro-fine particle copper-zinc bulk concentrate flotation separation method | |
| CN109482337B (en) | Method for recovering radioactive qualified lead concentrate from uranium-containing polymetallic ore | |
| CN102513214B (en) | Process for separating copper from waste micro/fine-particle zinc tailing | |
| CN110026293B (en) | Flotation method for secondary copper-containing high-sulfur copper lead zinc ore | |
| CN110038718B (en) | Process for efficiently separating micro-fine tungsten ore by using centrifugal machine and flotation | |
| CN104148187A (en) | Ore selection method for treating tin, lead and zinc polymetallic oxidized ore | |
| CN106861927A (en) | A kind of beneficiation method of micro fine particle | |
| CN111167613A (en) | Method for comprehensively recovering lead and zinc from sulfur concentrate after lead and zinc separation | |
| CN110813545A (en) | Flotation process for decarbonization of zinc concentrate | |
| CN107115962B (en) | Iron-copper-sulfur ore beneficiation system and method | |
| CN113941434B (en) | Beneficiation method for realizing efficient separation of copper and molybdenum by strengthening removal of copper and molybdenum 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 |
Application publication date: 20200211 |
|
| RJ01 | Rejection of invention patent application after publication |