CN111451002A - Flotation activator for crystalline uranium ores and application thereof - Google Patents
Flotation activator for crystalline uranium ores and application thereof Download PDFInfo
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- CN111451002A CN111451002A CN202010332376.8A CN202010332376A CN111451002A CN 111451002 A CN111451002 A CN 111451002A CN 202010332376 A CN202010332376 A CN 202010332376A CN 111451002 A CN111451002 A CN 111451002A
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- 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
- B03D1/002—Inorganic compounds
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- 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
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- 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
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- 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
- B03D2203/04—Non-sulfide ores
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention belongs to the technical field of mineral separation, and particularly relates to a flotation activator for crystalline uranium ores and application thereof. Preparing an activating agent aqueous solution; crushing and grinding the ore, adjusting the concentration of the ore pulp to 10-40% of the mass fraction of the ore, and transferring the ore pulp into a flotation tank; adding a prepared activator aqueous solution into the ore pulp, and stirring to ensure that the activator is fully contacted with target minerals; adding a collecting agent of benzohydroxamic acid of crystalline uranium ore into the ore pulp, and stirring to ensure that the collecting agent is fully contacted with the target mineral; after the collecting agent is fully contacted with the uranium niobate titanate ore, adding No. 2 oil for stirring, and performing pneumatic flotation on the uranium niobate titanate ore to obtain rougher concentrate and rougher tailings; adding an activating agent into the rougher tailings, stirring, adding a collecting agent, stirring, and scavenging to obtain scavenged concentrate and flotation tailings; and combining the obtained rough concentration and scavenging concentrate, concentrating for multiple times, and returning the concentrated tailings to the previous flotation stage in sequence until the ideal flotation index is reached. The activating agent disclosed by the invention can effectively activate the crystalline uranium ore and realize effective flotation of the crystalline uranium ore.
Description
Technical Field
The invention belongs to the technical field of mineral separation, and particularly relates to a flotation activator for crystalline uranium ores and application thereof.
Background
Crystalline Uranium Ore (UO)2) Belongs to one of the main uranium mineral types in China, has strong radioactivity and weak magnetism,the grain diameter is 0.1-0.3 mm, the maximum is 1mm, the black and striations are green, the isometric crystal system is mainly cubic and non-developed octahedral conglomerate. The crystalline uranium ore in China is mainly distributed in granite uranium ore, the grade of uranium is generally below 0.1%, the crystalline uranium ore belongs to native uranium ore, and an oxidant is required to be added during leaching. At present, uranium in crystalline uranium ores is generally recovered by a direct agitation leaching or heap leaching method in China, and because the grade of the uranium in the ores is low and an oxidant needs to be added in the leaching process, the production cost of the uranium is high. If the crystal uranium ore can be enriched by adopting a flotation method, most gangue minerals are abandoned, the subsequent hydrometallurgy ore treatment amount can be reduced, and the production cost is reduced. However, relevant documents at home and abroad do not show relevant reports of a high-efficiency floatation method of crystalline uranium ores, and the main reason is that although the crystalline uranium ores are simple in chemical composition, uranium is an oxophilic element and is high in hydrophilicity, most gangue minerals in the ores belong to oxides, the chemical properties are stable and are poorer than those of uranium minerals, and therefore the recovery rate of uranium is low or the selectivity of a collecting agent to uranium is poor when the crystalline uranium ores are directly floated.
Disclosure of Invention
The invention discloses a flotation activator of crystalline uranium ore and application thereof, aiming at the problems that the selectivity of a collecting agent to the crystalline uranium ore is poor and the crystalline uranium ore cannot be effectively enriched in the flotation process of the crystalline uranium ore at present.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the flotation activator for the crystalline uranium ores comprises 20-70% of ferric chloride, 10-60% of copper sulfate and 2-10% of concentrated sulfuric acid with the mass fraction of 98%.
The application of the flotation activator for the crystalline uranium ores is to prepare an activator aqueous solution with the mass fraction of 0.5-15% of the activator;
1) preparing ore pulp: crushing and grinding the ore, adjusting the concentration of the ore pulp to 10-40% of the mass fraction of the ore, and transferring the ore pulp into a flotation tank;
2) adding an activating agent: adding a prepared activating agent aqueous solution into the ore pulp, wherein the using amount of the activating agent is 100-1500 g/t, and stirring to ensure that the activating agent is fully contacted with target minerals;
3) adding a collecting agent: adding a collecting agent of benzohydroxamic acid of crystalline uranium ore into the ore pulp, wherein the using amount of the collecting agent is 200-2000 g/t, and stirring to ensure that the collecting agent is fully contacted with a target mineral;
4) flotation of the niobium-titanium-uranium ore:
a. after the collecting agent is fully contacted with the uranium niobate titanate ore, adding 30-100 g/t of No. 2 oil, stirring, and performing pneumatic flotation on the uranium niobate titanate ore to obtain rougher concentrate and rougher tailings;
b. adding 50-500 g/t of activating agent into the roughed tailings, stirring, adding 100-500 g/t of collecting agent, stirring, and scavenging to obtain scavenged concentrate and flotation tailings;
c. and combining the obtained rough concentration and scavenging concentrate, concentrating for multiple times, and returning the concentrated tailings to the previous flotation stage in sequence until the ideal flotation index is reached.
The preparation method of the aqueous solution of the activating agent comprises the following steps: weighing the iron chloride, the copper sulfate and the concentrated sulfuric acid according to the specified mass fractions, adding water, and stirring for 1-10 min at a rotation speed of 200-1500 r/min by using a stirrer.
Preparing ore pulp: after the ore is crushed to be less than 5mm in granularity, the ore is ground until the fineness of 200 meshes is 40 to 90 percent.
Preparing ore pulp: adjusting the temperature to 15-40 ℃, and transferring the mixture into a flotation tank.
The addition of an activating agent: stirring for 3-15 min at a stirring speed of 1000-2500 r/min.
The adding of the collecting agent: stirring for 3-15 min at a stirring speed of 1000-2500 r/min.
The flotation of the uranium niobium-titanium ore: a. stirring for 3-15 min at a stirring speed of 1000-2500 r/min.
The flotation of the uranium niobium-titanium ore: b. adding 50-500 g/t of activating agent into the roughed tailings, stirring for 3-15 min, adding 100-500 g/t of collecting agent, stirring for 3-15 min, and scavenging for 1 time to obtain scavenged concentrate and flotation tailings.
The beneficial effects obtained by the invention are as follows:
the flotation activator mainly comprises ferric chloride and copper sulfate, the activator is added before the collector is added, and Fe in the activator3+And Cu2+The collecting agent benzohydroxamic acid can be adsorbed on the surface of crystalline uranium ore minerals, and can promote benzohydroxamic acid to be adsorbed on the surface of crystalline uranium ore after the collecting agent benzohydroxamic acid is added, so that the crystalline uranium ore is activated, and the selectivity of the collecting agent is improved. The grade of uranium in the raw ore is 0.087%, the grade of uranium in the flotation concentrate is 0.587%, and the recovery rate is 83.79%.
Drawings
Fig. 1 is a flow chart of a flotation activator for crystalline uranium ores.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
The flotation activator for the crystalline uranium ore comprises the following components: the mass fraction of the ferric chloride is 20-70%, the mass fraction of the copper sulfate is 10-60%, and the mass fraction of the concentrated sulfuric acid with the mass fraction of 98% is 2-10%.
Respectively weighing the specified mass fractions of ferric chloride, copper sulfate and concentrated sulfuric acid, adding water, and stirring for 1-10 min by using a stirrer at the rotating speed of 200-1500 r/min to prepare an activator aqueous solution with the mass fraction of the activator of 0.5-15%.
As shown in fig. 1, the activating agent is applied to flotation of crystalline uranium ore as follows:
1) preparing ore pulp: crushing the ore to be less than 5mm in granularity, grinding the ore to be 40-90% of fineness-200 meshes, adjusting the concentration of the ore pulp to be 10-40% of the mass fraction of the ore, adjusting the temperature to be 15-40 ℃, and transferring the ore pulp into a flotation tank.
2) Adding an activating agent: adding a prepared activating agent aqueous solution into the ore pulp, wherein the using amount of the activating agent is 100-1500 g/t, and stirring for 3-15 min at a stirring speed of 1000-2500 r/min to ensure that the activating agent is fully contacted with target minerals.
3) Adding a collecting agent: adding a collecting agent benzohydroxamic acid of crystalline uranium ore into the ore pulp, wherein the dosage of the benzohydroxamic acid is 200-2000 g/t, and stirring for 3-15 min at a stirring speed of 1000-2500 r/min to ensure that the collecting agent is fully contacted with a target mineral.
4) Flotation of the niobium-titanium-uranium ore:
a. after the collecting agent is fully contacted with the uranium niobate titanate ore, adding 30-100 g/t of No. 2 oil, stirring for 3-15 min at a stirring speed of 1000-2500 r/min, and performing pneumatic flotation on the uranium niobate titanate ore to obtain rougher concentrate and rougher tailings;
b. adding 50-500 g/t of activating agent into the roughed tailings, stirring for 3-15 min, stirring 100-500 g/t of collecting agent for 3-15 min, and scavenging for 1 time to obtain scavenged concentrate and flotation tailings;
c. and combining the obtained rough concentration and scavenging concentrate, concentrating for multiple times, and returning the concentrated tailings to the previous flotation stage in sequence until the ideal flotation index is reached.
Example 1
The main gangue minerals of a certain pegmatite granite type uranium ore are feldspar and quartz, the contents of the gangue minerals are basically equal, the content of biotite is indefinite and changes within 5-20%, a small amount of muscovite is occasionally seen, and the muscovite is pyrite, magnetite, limonite, molybdenite, zircon and monazite, uranium mainly exists in the state of an independent uranium mineral, namely crystalline uranium ore, the crystalline uranium ore is in a full-self granular structure and is distributed in a dispersed or dip-dyed state, and the uranium grade is 0.088%.
(1) Preparing an activating agent according to the mass percent of 60 percent of ferric chloride, 35 percent of copper sulfate and 5 percent of concentrated sulfuric acid with the mass percent of 98 percent, adding water into the activating agent, and stirring for 5min by a stirrer at the rotating speed of 1000r/min to prepare an activating agent aqueous solution with the concentration of 5 percent.
(2) Crushing the ore to-3 mm, grinding the ore to the fineness of-200 meshes accounting for 60%, adjusting the concentration of the ore pulp to the mass fraction accounting for 25%, adjusting the temperature to 30 ℃, and transferring the ore pulp into a flotation tank.
(3) Adding the prepared aqueous solution of the crystalline uranium ore activator into the ore pulp, wherein the dosage of the activator is 0g/t, 400g/t, 600g/t, 800g/t, 1000g/t and 1200g/t respectively, and stirring for 15min at the stirring speed of 1900 r/min.
(4) Adding a crystalline uranium ore collecting agent benzohydroxamic acid into the ore pulp, stirring for 15min at the stirring speed of 1900r/min, adding No. 2 oil at the stirring speed of 50g/t, stirring for 10min, and performing air flotation to obtain flotation rough concentrate and flotation tailings. Example 1 the results of the test are shown in table 1.
Table 1 example 1 flotation test results
Example 2
The main gangue minerals of a certain pegmatite granite type uranium ore are feldspar and quartz, the contents of the gangue minerals are basically equal, the content of biotite is indefinite and changes within 5-20%, a small amount of muscovite is occasionally seen, and the muscovite is pyrite, magnetite, limonite, molybdenite, zircon and monazite, uranium mainly exists in the state of an independent uranium mineral, namely crystalline uranium ore, the crystalline uranium ore is in a full-self granular structure and is distributed in a dispersed or dip-dyed state, and the uranium grade is 0.088%.
(1) Preparing an activator according to the mass percent of 55 percent of ferric chloride, 40 percent of copper sulfate and 5 percent of concentrated sulfuric acid with the mass percent of 98 percent, adding water into the activator, and stirring for 10min by a stirrer at the rotating speed of 1200r/min to prepare an activator aqueous solution with the concentration of 10 percent.
(2) Crushing the ore to-2 mm, grinding the ore to 70% of fineness of-200 meshes, adjusting the concentration of the ore pulp to 30% of the mass fraction of the ore, adjusting the temperature to 35 ℃, and transferring the ore pulp into a flotation tank.
(3) Adding prepared aqueous solution of a crystalline uranium ore activator into the ore pulp, wherein the dosage of the activator is 1000g/t, and stirring for 10min at the stirring speed of 2000 r/min.
(4) Adding a crystalline uranium ore collecting agent benzohydroxamic acid into the ore pulp, stirring for 10min at the stirring speed of 2000r/min, adding No. 2 oil for 60g/t, stirring for 10min, and performing air flotation to obtain flotation rough concentrate and flotation rough tailings.
(5) Adding 200g/t of activating agent into the flotation coarse tailings, and stirring for 10min at the stirring speed of 2000 r/min; adding 150g/t of benzohydroxamic acid, stirring for 10min at the stirring speed of 2000r/min, adding 30g/t of No. 2 oil, stirring for 10min, performing pneumatic flotation to obtain scavenging concentrate and flotation tailings, and performing concentration twice on flotation rough concentrate to obtain middling 1, middling 2 and flotation concentrate.
Example 2 the test results are shown in table 2.
Table 2 example 2 test results
Example 3
The main gangue minerals of a certain pegmatite granite type uranium ore are feldspar and quartz, the contents of the gangue minerals are basically equal, the content of biotite is indefinite and changes within 5-20%, a small amount of muscovite is occasionally seen, and the muscovite is pyrite, magnetite, limonite, molybdenite, zircon and monazite, uranium mainly exists in the state of an independent uranium mineral, namely crystalline uranium ore, the crystalline uranium ore is in a full-self granular structure and is distributed in a dispersed or dip-dyed state, and the uranium grade is 0.088%.
(1) Preparing an activating agent according to the mass percent of 65 percent of ferric chloride, 30 percent of copper sulfate and 5 percent of concentrated sulfuric acid with the mass percent of 98 percent, adding water into the activating agent, and stirring for 5min by a stirrer at the rotating speed of 1500r/min to prepare an activating agent aqueous solution with the concentration of 5 percent.
(2) Crushing the ore to-2.5 mm, grinding the ore to the fineness of-200 meshes which accounts for 750 percent, adjusting the concentration of the ore pulp to 30 percent of the mass fraction of the ore, adjusting the temperature to 35 ℃, and transferring the ore pulp into a flotation tank.
(3) Adding prepared crystal uranium ore activator aqueous solution into the ore pulp, wherein the dosage of the activator is 1200g/t, and stirring for 5min at the stirring speed of 1000 r/min.
(4) Adding a crystalline uranium ore collecting agent benzohydroxamic acid into the ore pulp, stirring for 5min at the stirring speed of 2000r/min, adding No. 2 oil at the stirring speed of 60g/t, stirring for 5min, and performing air flotation to obtain flotation rough concentrate and flotation rough tailings.
(5) Adding a prepared activator aqueous solution into the flotation coarse tailings, wherein the dosage of the activator is 250g/t, and stirring for 5min at a stirring speed of 2000 r/min; adding 200g/t of benzohydroxamic acid, stirring for 5min at the stirring speed of 2000r/min, adding 30g/t of No. 2 oil, stirring for 5min, and performing pneumatic flotation to obtain scavenging concentrate and flotation tailings; returning the scavenged concentrate to the previous stage of rough concentration, carrying out the rough concentration on the concentrate for 2 times, and returning the concentrated tailings to the previous stage of flotation in sequence to finally obtain the flotation concentrate and the flotation tailings.
The experimental procedure is shown in FIG. 1, and the experimental results of example 3 are shown in Table 3.
Table 3 example 3 flotation test results
Claims (9)
1. A flotation activator for crystalline uranium ores, which is characterized in that: the mass fraction of the ferric chloride is 20-70%, the mass fraction of the copper sulfate is 10-60%, and the mass fraction of the concentrated sulfuric acid with the mass fraction of 98% is 2-10%.
2. The application of the flotation activator for the crystalline uranium ores is characterized in that: preparing an activator aqueous solution with the mass fraction of the activator of 0.5-15%;
1) preparing ore pulp: crushing and grinding the ore, adjusting the concentration of the ore pulp to 10-40% of the mass fraction of the ore, and transferring the ore pulp into a flotation tank;
2) adding an activating agent: adding a prepared activating agent aqueous solution into the ore pulp, wherein the using amount of the activating agent is 100-1500 g/t, and stirring to ensure that the activating agent is fully contacted with target minerals;
3) adding a collecting agent: adding a collecting agent of benzohydroxamic acid of crystalline uranium ore into the ore pulp, wherein the using amount of the collecting agent is 200-2000 g/t, and stirring to ensure that the collecting agent is fully contacted with a target mineral;
4) flotation of the niobium-titanium-uranium ore:
a. after the collecting agent is fully contacted with the uranium niobate titanate ore, adding 30-100 g/t of No. 2 oil, stirring, and performing pneumatic flotation on the uranium niobate titanate ore to obtain rougher concentrate and rougher tailings;
b. adding 50-500 g/t of activating agent into the roughed tailings, stirring, adding 100-500 g/t of collecting agent, stirring, and scavenging to obtain scavenged concentrate and flotation tailings;
c. and combining the obtained rough concentration and scavenging concentrate, concentrating for multiple times, and returning the concentrated tailings to the previous flotation stage in sequence until the ideal flotation index is reached.
3. Use of a flotation activator for uranium crystalline ores according to claim 2, characterised in that: the preparation method of the aqueous solution of the activating agent comprises the following steps: weighing the iron chloride, the copper sulfate and the concentrated sulfuric acid according to the specified mass fractions, adding water, and stirring for 1-10 min at a rotation speed of 200-1500 r/min by using a stirrer.
4. Use of a flotation activator for uranium crystalline ores according to claim 2, characterised in that: preparing ore pulp: after the ore is crushed to be less than 5mm in granularity, the ore is ground until the fineness of 200 meshes is 40 to 90 percent.
5. Use of a flotation activator for uranium crystalline ores according to claim 2, characterised in that: preparing ore pulp: adjusting the temperature to 15-40 ℃, and transferring the mixture into a flotation tank.
6. Use of a flotation activator for uranium crystalline ores according to claim 2, characterised in that: the addition of an activating agent: stirring for 3-15 min at a stirring speed of 1000-2500 r/min.
7. Use of a flotation activator for uranium crystalline ores according to claim 2, characterised in that: the adding of the collecting agent: stirring for 3-15 min at a stirring speed of 1000-2500 r/min.
8. Use of a flotation activator for uranium crystalline ores according to claim 2, characterised in that: the flotation of the uranium niobium-titanium ore: a. stirring for 3-15 min at a stirring speed of 1000-2500 r/min.
9. Use of a flotation activator for uranium crystalline ores according to claim 2, characterised in that: the flotation of the uranium niobium-titanium ore: b. adding 50-500 g/t of activating agent into the roughed tailings, stirring for 3-15 min, adding 100-500 g/t of collecting agent, stirring for 3-15 min, and scavenging for 1 time to obtain scavenged concentrate and flotation tailings.
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| CN202210935105.0A CN115301412A (en) | 2020-04-24 | 2020-04-24 | Activation flotation method for crystalline uranium ores |
| CN202010332376.8A CN111451002A (en) | 2020-04-24 | 2020-04-24 | Flotation activator for crystalline uranium ores and application thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112156894A (en) * | 2020-08-07 | 2021-01-01 | 核工业北京化工冶金研究院 | Method for flotation of uranium minerals from volcanic rock type uranium ores |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3910836A (en) * | 1972-01-29 | 1975-10-07 | Soquem | Pyrochlore flotation |
| CN102671769A (en) * | 2012-05-14 | 2012-09-19 | 长沙矿冶研究院有限责任公司 | Beneficiation method for flotation and recovery of molybdenum from easy-floating gangue refractory molybdenum ore |
| CN102989589A (en) * | 2012-12-05 | 2013-03-27 | 铜陵有色金属集团股份有限公司 | Process for recovering inhibited pyrite and pyrrhotite by utilizing two-step method |
| CN109225646A (en) * | 2018-09-29 | 2019-01-18 | 广东省资源综合利用研究所 | Flotation collector and its application of tantalum niobium are recycled from granite peamatite tantalum niobium concentrate |
| CN109482356A (en) * | 2018-12-05 | 2019-03-19 | 核工业北京化工冶金研究院 | A kind of combined capturing and collecting agent and method of betafite flotation |
-
2020
- 2020-04-24 CN CN202210935105.0A patent/CN115301412A/en active Pending
- 2020-04-24 CN CN202010332376.8A patent/CN111451002A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3910836A (en) * | 1972-01-29 | 1975-10-07 | Soquem | Pyrochlore flotation |
| CN102671769A (en) * | 2012-05-14 | 2012-09-19 | 长沙矿冶研究院有限责任公司 | Beneficiation method for flotation and recovery of molybdenum from easy-floating gangue refractory molybdenum ore |
| CN102989589A (en) * | 2012-12-05 | 2013-03-27 | 铜陵有色金属集团股份有限公司 | Process for recovering inhibited pyrite and pyrrhotite by utilizing two-step method |
| CN109225646A (en) * | 2018-09-29 | 2019-01-18 | 广东省资源综合利用研究所 | Flotation collector and its application of tantalum niobium are recycled from granite peamatite tantalum niobium concentrate |
| CN109482356A (en) * | 2018-12-05 | 2019-03-19 | 核工业北京化工冶金研究院 | A kind of combined capturing and collecting agent and method of betafite flotation |
Non-Patent Citations (2)
| Title |
|---|
| [美]M.本尼迪克特: "《核化学工程》", 31 August 1988, 原子能出版社 * |
| 李松清: "微细粒铌钛铀矿的回收试验研究", 《现代矿业》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112156894A (en) * | 2020-08-07 | 2021-01-01 | 核工业北京化工冶金研究院 | Method for flotation of uranium minerals from volcanic rock type uranium ores |
| CN112156894B (en) * | 2020-08-07 | 2022-05-03 | 核工业北京化工冶金研究院 | Method for flotation of uranium minerals from volcanic rock type uranium ores |
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| CN115301412A (en) | 2022-11-08 |
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