CN108927294A - A kind of method for floating of silicon calcium collophanite - Google Patents
A kind of method for floating of silicon calcium collophanite Download PDFInfo
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- CN108927294A CN108927294A CN201710374414.4A CN201710374414A CN108927294A CN 108927294 A CN108927294 A CN 108927294A CN 201710374414 A CN201710374414 A CN 201710374414A CN 108927294 A CN108927294 A CN 108927294A
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- floating
- silicon calcium
- grinding
- calcium collophanite
- collophane
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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
- B03D1/021—Froth-flotation processes for treatment of phosphate ores
-
- 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
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
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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
- B03D1/025—Froth-flotation processes adapted for the flotation of fines
-
- 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
- B03D2201/005—Dispersants
-
- 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
- B03D2201/06—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
- B03D2203/04—Non-sulfide ores
- B03D2203/06—Phosphate ores
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- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Paper (AREA)
- Disintegrating Or Milling (AREA)
Abstract
The present invention is a kind of method for floating of silicon calcium collophanite, and this approach includes the following steps：（1）By broken collophane raw ore in 500 DEG C of -950 DEG C of calcinings；（2）The mine calcined is fed into grinding machine, reverse flotation roughing stirred tank is fed after grinding operation is milled to suitable grinding fineness；（3）Addition dispersing agent, inhibitor and collecting agent, carry out operation of sizing mixing in stirred tank；（4）The ore pulp sized mixing feeds reverse flotation roughing operation, and roughing foam is scanned by 1 ~ 4 time, and product is selected through 1 ~ 4 time in slot, finally obtains concentrate product.The present invention has simple process novel, and process is stablized, the advantages such as flotation effect is good, and beneficiation cost is low, provides a kind of new sorting approach for the development and utilization of silico-calcium matter class collophane.
Description
Technical field
It is the invention belongs to technical field of mineral processing, in particular to a kind of that silico-calcium matter glue is handled using roasting reverse floatation process
The method of phosphorus ore.
Background technique
China's phosphate rock resource is very rich, and resource base reserves occupy the second in the world, but 94% or more is mid low grade phosphate rock
Stone, this kind of ore must deviate from carbonate gangue and silicate gangue simultaneously, just be able to satisfy the requirement of downstream operation.It is directed at present
Low-grade calcium-silicon phosphate rock mainly has these three flotation works of direct-reverse flotation technique, trans- direct floatation process, bi-anti-symmetric matrix technique
Skill, currently, being directed to silicon calcium collophanite, the technique in the dressing plant being currently running is n- reverse floatation process, but the technique is especially deposited
In high production cost, process is complicated, and the quality of direct floatation process index is influenced by return water water quality quality, and the place of return water
Managing must mating Tailings Dam.And trans- direct flotation and bi-anti-symmetric matrix be since technique is immature, not expanded application always.Therefore, such as
To China is vitalized, a large amount of silicon calcium collophanite resources have important economic effect to what rational exploitation and utilization silicon calcium collophanite at present
Benefit and social effect.
Summary of the invention
The purpose of the present invention is in view of the deficiencies of the prior art, propose that a kind of technique is more reasonable, sorting is high to be applicable in
In the method for floating of the silicon calcium collophanite of low grade silicon calcium collophanite.
The purpose of the present invention is what is realized by technical solution below.The present invention is a kind of floating for silicon calcium collophanite
Choosing method, its main feature is that, this approach includes the following steps：
（1）By broken collophane raw ore in 500 DEG C of -950 DEG C of calcinings；
（2）The mine calcined is fed into grinding machine, reverse flotation roughing stirring is fed after grinding operation is milled to suitable grinding fineness
Slot；
（3）Addition dispersing agent, inhibitor and collecting agent, carry out operation of sizing mixing in stirred tank；
（4）The ore pulp sized mixing feeds reverse flotation roughing operation, and roughing foam is scanned by 1 ~ 4 time, and product is through 1 ~ 4 essence in slot
Choosing, finally obtains concentrate product.
The method for floating of silicon calcium collophanite of the present invention, further preferred technical solution are：
1, step（1）In, the temperature of collophane raw ore calcining is 600 DEG C -950 DEG C, further preferred 700 DEG C -900 DEG C.
2, step（1）In, the time of calcining is preferably 0.5-2h.
3, step（2）In, the grinding fineness of grinding operation is that -74 μm of raw ores preferably account for 50 ~ 90%, further preferably account for 60 ~
80%。
4, step（3）In, the dispersing agent is preferably waterglass；The inhibitor is starchy compounds, described
Collecting agent be fatty acid soaps type organic.Its dosage can carry out selection use according to conventional amount used.
The principle of the method for the present invention is：Main valuable mineral in collophane is apatite, and gangue mineral is mainly white clouds
Stone, quartz and silicate obtain qualified phosphorus concentrate for silicon calcium collophanite, it is necessary to while removing dolomite and silicic acid
Salt mineral are at present n- reverse floatation process, acid reverse flotation de-magging, alkalinity for such mineral technique more mature at present
Direct-flotation desiliconisation, but the technique requires grinding fineness thinner, is generally 80 ~ 90% in -74 μm of raw ores, and direct floatation process is general
It is required that heating flotation, causes beneficiation cost higher, and the necessary mating Tailings Dam of the return water for handling the technique, there is great safe shadow
It rings.Inventor studies discovery：By making dolomite decomposition, and then be transferred to liquid phase under 500 DEG C of -950 DEG C of maturing temperatures, and by
In decomposing the MgO generated and CaO since quartz and silicate mineral surface, Jin Er with high activity, can be adsorbed on
Under anionic collector system, the sorting of quartz and silicate mineral has been activated.
Compared with prior art, the method for the present invention is effectively reduced MgO and SiO in collophane2Content.Its simple process
Novelty, process are stablized, and beneficiation cost is low, provide a kind of new sorting approach for the development and utilization of silico-calcium matter class collophane.Together
When, the present invention for the first time selected fatty acid anionoid collecting agent reverse flotation quartz and silicate mineral.It is imitated with good flotation
Fruit.The phosphorus concentrate grade P that the method for the present invention obtains2O5It is 28.0 ~ 30.0%, the phosphorus concentrate rate of recovery reaches by weight percentage
55.0~75.0%。
Specific embodiment
Technical solution of the present invention is described further below, so that those skilled in the art are further understood that this
Invention, without constituting the limitation to right of the present invention.
Embodiment 1, a kind of method for floating of silicon calcium collophanite, this approach includes the following steps：
（1）Broken collophane raw ore is calcined at 500 DEG C；The time of calcining is 2h；
（2）The mine calcined is fed into grinding machine, reverse flotation roughing stirring is fed after grinding operation is milled to suitable grinding fineness
Slot；The grinding fineness of grinding operation is that -74 μm of raw ores account for 50%；
（3）Addition dispersing agent, inhibitor and collecting agent, carry out operation of sizing mixing in stirred tank；The dispersing agent is waterglass；Institute
The inhibitor stated is starchy compounds；The collecting agent is fatty acid soaps type organic；Dosage is appropriate；
（4）The ore pulp sized mixing feeds reverse flotation roughing operation, and roughing foam is scanned by 1 time, and product is selected through 1 time in slot,
Finally obtain concentrate product.
Embodiment 2, a kind of method for floating of silicon calcium collophanite, this approach includes the following steps：
（1）Broken collophane raw ore is calcined at 950 DEG C；The time of calcining is 0.5h；
（2）The mine calcined is fed into grinding machine, reverse flotation roughing stirring is fed after grinding operation is milled to suitable grinding fineness
Slot；The grinding fineness of grinding operation is that -74 μm of raw ores account for 90%；
（3）Addition dispersing agent, inhibitor and collecting agent, carry out operation of sizing mixing in stirred tank；The dispersing agent is waterglass；Institute
The inhibitor stated is starchy compounds；The collecting agent is fatty acid soaps type organic；
（4）The ore pulp sized mixing feeds reverse flotation roughing operation, and roughing foam is scanned by 4 times, and product is selected through 4 times in slot,
Finally obtain concentrate product.
Embodiment 3, a kind of method for floating of silicon calcium collophanite, this approach includes the following steps：
（1）Broken collophane raw ore is calcined at 600 DEG C；The time of calcining is 1h；
（2）The mine calcined is fed into grinding machine, reverse flotation roughing stirring is fed after grinding operation is milled to suitable grinding fineness
Slot；The grinding fineness of grinding operation is that -74 μm of raw ores account for 70%；
（3）Addition dispersing agent, inhibitor and collecting agent, carry out operation of sizing mixing in stirred tank；The dispersing agent is waterglass；Institute
The inhibitor stated is starchy compounds；The collecting agent is fatty acid soaps type organic；
（4）The ore pulp sized mixing feeds reverse flotation roughing operation, and roughing foam is scanned by 2 times, and product is selected through 3 times in slot,
Finally obtain concentrate product.
Embodiment 4, a kind of method for floating of silicon calcium collophanite, this approach includes the following steps：
（1）Broken collophane raw ore is calcined at 850 DEG C；The time of calcining is 1.5h；
（2）The mine calcined is fed into grinding machine, reverse flotation roughing stirring is fed after grinding operation is milled to suitable grinding fineness
Slot；The grinding fineness of grinding operation is that -74 μm of raw ores account for 65%；
（3）Addition dispersing agent, inhibitor and collecting agent, carry out operation of sizing mixing in stirred tank；The dispersing agent is waterglass；Institute
The inhibitor stated is starchy compounds；The collecting agent is fatty acid soaps type organic；
（4）The ore pulp sized mixing feeds reverse flotation roughing operation, and roughing foam is scanned by 3 times, and product is selected through 2 times in slot,
Finally obtain concentrate product.
The phosphorus ore selected in following embodiments is somewhere silicon calcium collophanite, and valuable mineral is collophane, main gangue
Mineral are dolomite, quartz and silicic acid class mineral.
Embodiment 5, a kind of method for floating of silicon calcium collophanite, its step are as follows：
（1）By broken collophane in 750 DEG C of calcining 1h；
（2）The mine calcined is fed into grinding machine, being milled to -74 μm of grinding fineness through grinding operation is 70%；After feed reverse flotation roughing
Stirred tank；
（3）Dispersing agent waterglass, inhibitor starch and collecting agent fatty acid are added in stirred tank in order, carries out operation of sizing mixing；
（4）The ore pulp sized mixing feeds reverse flotation roughing operation, and roughing foam is scanned by 1 time, and product is selected through 2 times in slot,
Finally obtain qualified concentrate product.
Main component contains P by weight percentage in phosphorus ore raw ore in the above method2O523.5%, MgO 3.2%, SiO2
22.0% and a small amount of other impurities；
The phosphorus concentrate grade P obtained in the above method2O5It is 29.5%, the phosphorus concentrate rate of recovery obtained in the above method is by weight
Percentage is 72.5%.
Embodiment 6, a kind of method for floating of silicon calcium collophanite, its step are as follows：
（1）By broken collophane in 700 DEG C of calcining 1.5h；
（2）The mine calcined is fed into grinding machine, being milled to -74 μm of grinding fineness through grinding operation is 65%；After feed reverse flotation roughing
Stirred tank；
（3）Dispersing agent waterglass, inhibitor starch and collecting agent fatty acid are added in stirred tank in order, carries out operation of sizing mixing；
（4）The ore pulp sized mixing feeds reverse flotation roughing operation, and roughing foam is scanned by 2 times, and product is selected through 3 times in slot,
Finally obtain qualified concentrate product.
Main component contains P by weight percentage in phosphorus ore raw ore in the above method2O524.5%, MgO 2.2%, SiO2
24.0% and a small amount of other impurities；
The phosphorus concentrate grade P obtained in the above method2O5It is 30.5%, the phosphorus concentrate rate of recovery obtained in the above method is by weight
Percentage is 76.8%.
Embodiment 7, a kind of method for floating of silicon calcium collophanite, its step are as follows：
（1）By broken collophane in 800 DEG C of calcining 1.5h,；
（2）The mine calcined is fed into grinding machine, being milled to -74 μm of grinding fineness through grinding operation is 85%；After feed reverse flotation roughing
Stirred tank；
（3）Dispersing agent waterglass, inhibitor starch and collecting agent fatty acid are added in stirred tank in order, carries out operation of sizing mixing；
（4）The ore pulp sized mixing feeds reverse flotation roughing operation, and roughing foam is scanned by 1 time, and product is selected through 2 times in slot,
Finally obtain qualified concentrate product.
Main component contains P by weight percentage in phosphorus ore raw ore in the above method2O523.3%, MgO 3.8%, SiO2
23.0% and a small amount of other impurities；
The phosphorus concentrate grade P obtained in the above method2O5It is 30.75%, the phosphorus concentrate rate of recovery obtained in the above method is by weight
Measuring percentage is 80.5%.
Claims (9)
1. a kind of method for floating of silicon calcium collophanite, which is characterized in that this approach includes the following steps：
（1）By broken collophane raw ore in 500 DEG C of -950 DEG C of calcinings；
（2）The mine calcined is fed into grinding machine, reverse flotation roughing stirring is fed after grinding operation is milled to suitable grinding fineness
Slot；
（3）Addition dispersing agent, inhibitor and collecting agent, carry out operation of sizing mixing in stirred tank；
（4）The ore pulp sized mixing feeds reverse flotation roughing operation, and roughing foam is scanned by 1 ~ 4 time, and product is through 1 ~ 4 essence in slot
Choosing, finally obtains concentrate product.
2. the method for floating of silicon calcium collophanite according to claim 1, it is characterised in that：Step（1）In, collophane is former
The temperature of mine calcining is 600 DEG C -950 DEG C.
3. the method for floating of silicon calcium collophanite according to claim 1, it is characterised in that：Step（1）In, collophane is former
The temperature of mine calcining is 700 DEG C -900 DEG C.
4. the method for floating of silicon calcium collophanite according to claim 1 or 2 or 3, it is characterised in that：Step（1）In, it forges
The time of burning is 0.5-2h.
5. the method for floating of silicon calcium collophanite according to claim 1, it is characterised in that：Step（2）In, grinding operation
Grinding fineness be -74 μm of raw ores account for 50 ~ 90%.
6. the method for floating of silicon calcium collophanite according to claim 1, it is characterised in that：Step（2）In, grinding operation
Grinding fineness be -74 μm of raw ores account for 60 ~ 80%.
7. the method for floating of silicon calcium collophanite according to claim 1, it is characterised in that：Step（3）In, point
Powder is waterglass.
8. the method for floating of silicon calcium collophanite according to claim 1, it is characterised in that：Step（3）In, the suppression
Preparation is starchy compounds.
9. the method for floating of silicon calcium collophanite according to claim 1, it is characterised in that：Step（3）In, described catches
Receipts agent is fatty acid soaps type organic.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110142132A (en) * | 2019-04-17 | 2019-08-20 | 贵州开磷有限责任公司 | A kind of method for sieving of silicon-calcium collophanite stone |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110142132A (en) * | 2019-04-17 | 2019-08-20 | 贵州开磷有限责任公司 | A kind of method for sieving of silicon-calcium collophanite stone |
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