CN105728177A - Leaching-reverse flotation method of collophanite - Google Patents
Leaching-reverse flotation method of collophanite Download PDFInfo
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- CN105728177A CN105728177A CN201610135325.XA CN201610135325A CN105728177A CN 105728177 A CN105728177 A CN 105728177A CN 201610135325 A CN201610135325 A CN 201610135325A CN 105728177 A CN105728177 A CN 105728177A
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- ore
- reverse flotation
- collophane
- leaching
- reverse
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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
- 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
-
- 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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- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a leaching-reverse flotation method of collophanite, belongs to the technical field of mineral processing, and mainly solves the problems that in a conventional positive-reverse flotation method, the concentrate P2O5 recovery rate is relatively low, the energy consumption is high, and the process is complex. The leaching-reverse flotation method is mainly characterized by comprising the steps of (1) crushing and grinding collophanite ore till the content of 200-mesh collophanite ore is 80% or above, adding water and adjusting till the ore pulp concentration is 25% to 40%; (2) pouring the ore pulp into a stirring tank, adding 98% sulfuric acid into the stirring tank, and fully stirring to leach the ore from the ore pulp; and (3) finally, adding a reverse flotation collecting agent into the ore pulp, and carrying out carbonate gangue ore reverse flotation, wherein a scavenged foam product is reverse flotation tailings; and a product in a rougher is phosphorus concentrate. The leaching-reverse flotation method has the characteristics that the process and reagent system are simple, the energy consumption is relatively low, and the concentrate P2O5 recovery rate is high, and is mainly utilized for separating phosphorus concentrate from collophanite produced in regions such as Hubei and Hunan.
Description
Technical field
The invention belongs to technical field of mineral processing, be specifically related to a kind of employing leaching-reverse flotation technology and divide from collophane
The method selecting phosphorus concentrate.
Background technology
Along with domestic production of phosphate fertilizer develops to high-concentration compound fertilizer direction, require day by day to increase to phosphorus concentrate quality.Not only
Require concentrate P2O5Of high grade, and objectionable impurities content of MgO is low.But, along with the continuous exploitation of phosphate rock resource, high-grade
And easily select phosphorus ore resource the most exhausted.Therefore, exploitation and the utilization of mid-low grade collophanite ore has become sulphur dioxide of phosphor chemical industry instantly
The demand of sustainable development.
At present, the more difficult sorting of China (refers to according to the physics of different minerals, chemical property in Ore, with certain ore dressing
Method, makes the valuable mineral in Ore separated from one another from gangue mineral and different valuable minerals, and is allowed to the work being enriched with respectively
Industry.) collophane be concentrated mainly on the area such as Hubei, Hunan, such as Hubei Hu collection area, Yichang Prefecture.Such Ore belongs to
Silicon calcium collophanite, Ore P is selected in middle-low grade difficulty2O5About grade 12%-25%, objectionable impurities MgO is up to about 4%-10%.
Owing to this kind of phosphate rock resource is the tight symbiosis of phosphate mineral, silicate mineral and carbonate mineral, particularly phosphate mineral
Ion Ca of the same name is all contained with carbonate mineral2+, and the lattice structure of two kinds of mineral, Surface Physical Chemistry character and natural float
Property is the most close, causes the more difficult sorting of this kind of Ore.
The existing method from collophane sorting phosphorus concentrate mainly uses direct-reverse flotation method, direct flotation roughly select, top-up
Select that twice selected, direct flotation selects again, and reverse flotation is roughly selected, reverse flotation scans composition.Direct-reverse flotation method exists the most not
Foot: 1, need ore grinding to-200 mesh more than 90%, relatively increase cost and energy consumption；2, flow process is many, complicated, uses medicament kind more；
3, ore pulp need to be heated to more than 50 DEG C, relatively increase energy consumption；4, concentrate P2O5The response rate is relatively low, and only about 79%.
Summary of the invention
It is an object of the invention to provide a kind of method using leaching-reverse flotation technology to sort phosphorus concentrate from collophane.
The technical problem to be solved can be achieved through the following technical solutions, and the present invention is a kind of collophane leaching
Go out-reverse flotation method, it is characterised in that: 1. by collophane ore reduction ore grinding to-200 mesh content more than 80%, add water move to dense
Degree is the ore pulp of 25% ~ 40%；The most then flow into agitator tank, agitator tank adds 98% sulphuric acid, be sufficiently stirred for making mineral from ore pulp
Middle leaching；Adding collecting agent in reverse floatation in the most backward ore pulp, carry out carbonate gangue mineral reverse flotation, scanning froth pulp is
Reverse flotation mine tailing, in initial separatory cell, product is phosphorus concentrate.
In the technical solution of the present invention 1. the collophane Ore described in step be: P2O5Grade 20.43% ~
23.45%, content of MgO 3.52% ~ 5.09%, A.I acid is the most tolerant is 9.74% ~ 13.21%.
In the technical solution of the present invention the 2. the agitator tank described in step constituted by two sections, one section adds sulphuric acid
After, ore pulp enters two-stage nitration stirring, and total stirring, extraction time are 5 ~ 7 minutes.
In the technical solution of the present invention 2. the consumption of 98% sulphuric acid described in step be 42.50 ~ 60.76kg/t glue
Phosphorus ore Ore.
In the technical solution of the present invention 3. collecting agent in reverse floatation consumption described in step be 0.63 ~ 2.50kg/t glue
Phosphorus ore Ore.
Described in the technical solution of the present invention the 3. step can also be: add reverse flotation in the most backward ore pulp and catch
Receiving agent, carry out carbonate gangue mineral reverse flotation, in reverse flotation initial separatory cell, product is phosphorus concentrate (K), roughly selects froth pulp and enters
Entering and scan operation, in scavenger flotation cell, product returns and roughly selects, and scanning foam is reverse flotation mine tailing (X).
The present invention has the advantage that 1 compared with prior art (direct-reverse flotation technology)) mog require relatively low, can
Effectively reduce ore grinding cost；2) flow process is simple, and by leaching, reverse flotation is roughly selected, reverse flotation is scanned and constituted；Only use sulphuric acid and instead float
Selecting collecting agent, regime of agent is simple；3) realize normal temperature flotation, it is not necessary to ore pulp is heated, effectively reduce beneficiation cost；4) essence
Ore deposit P2O5The response rate is greatly improved, and reaches 86%-89%.
The present invention has flow process and regime of agent is simple, energy consumption is relatively low and concentrate P2O5The feature that the response rate is high.Master of the present invention
The method being used for sorting phosphorus concentrate from the produced collophane in the area such as Hubei, Hunan.
Accompanying drawing explanation
Fig. 1 is the process chart of the present invention.
Detailed description of the invention
By specific embodiment, the method for the present invention is illustrated below in conjunction with the accompanying drawings, but the invention is not limited in
This, all any amendment, equivalent and improvement etc. made within the spirit and principles in the present invention, should be included in the present invention
Protection domain within.
Experimental technique described in following embodiment, if no special instructions, is conventional method；Described reagent and material, as
Without specified otherwise, the most commercially obtain.
Embodiment 1: (wherein, the P with Yichang collophane Ore as raw ore2O5Being 23.38%, MgO is 3.52%, A.I
Acid the most tolerant 9.92%), by collophane ore reduction ore grinding to-200 mesh content 81.30%, add water move to the ore pulp of concentration 25%,
Then flow into agitator tank, agitator tank adds 98% sulphuric acid (H2SO4) 42.50kg/t raw ore, after stirring, leaching 6 minutes, to ore deposit
Adding collecting agent in reverse floatation 1.67kg/t raw ore in slurry, carry out carbonate gangue mineral reverse flotation and roughly select, in groove, product is phosphorus
Concentrate K, froth pulp enters and scans operation, and in scavenger flotation cell, product returns and roughly selects, and scanning foam is reverse flotation mine tailing X, accordingly
Flotation effect is as shown in table 1 below.Wherein, the computing formula of productivity and the response rate is as follows:
As shown in Table 1, the collophane leaching-reverse flotation method of the present invention, P in obtainable concentrate are used2O5Content is
30.66%, productivity is 67.03%, and in the concentrate response rate 87.63% and concentrate, content of MgO is 0.42%, has good flotation and refers to
Mark.
Embodiment 2: (wherein, the P with Yichang collophane as raw ore2O5Being 22.74%, MgO is 4.48%, and A.I acid is not
Tolerant is 9.74%), by collophane ore reduction ore grinding to-200 mesh content 90.50%, add water move to the ore pulp of concentration 40%, so
Rear inflow agitator tank, adds 98% sulphuric acid 45.57kg/t raw ore in agitator tank, after stirring, leaching 5min minute, in ore pulp
Adding collecting agent in reverse floatation 0.63kg/t raw ore, carry out carbonate gangue mineral reverse flotation and roughly select, in groove, product is phosphorus concentrate
K, froth pulp enters and scans operation, and in scavenger flotation cell, product returns and roughly selects, and scanning foam is reverse flotation mine tailing X, corresponding flotation
Effect is as shown in table 2 below.
As shown in Table 2, the collophane leaching-reverse flotation method of the present invention, P in obtainable concentrate are used2O5Content is
29.13%, productivity is 69.68%, and in the concentrate response rate 89.30% and concentrate, content of MgO is 1.15%, has good flotation and refers to
Mark.
Embodiment 3: (wherein, the P with Yichang collophane as raw ore2O5Being 22.59%, MgO is 4.59%, and A.I acid is not
Tolerant is 13.21%), by collophane ore reduction ore grinding to-200 mesh content 85.01%, add water move to the ore pulp of concentration 35%, so
Rear inflow agitator tank, adds 98% sulphuric acid 60.76kg/t raw ore in agitator tank, after stirring, leaching 7 minutes, adds in ore pulp
Collecting agent in reverse floatation 2.50kg/t raw ore, carries out carbonate gangue mineral reverse flotation and roughly selects, and in groove, product is phosphorus concentrate K, bubble
Foam product enters and scans operation, and in scavenger flotation cell, product returns and roughly selects, and scanning foam is reverse flotation mine tailing X, corresponding flotation effect
As shown in table 3 below.
As shown in Table 3, the collophane leaching-reverse flotation method of the present invention, P in obtainable concentrate are used2O5Content is
29.08%, productivity is 62.71%, and in the concentrate response rate 89.28% and concentrate, content of MgO is 0.89%, has good, and flotation refers to
Mark.
It is raw ore (P when using Yichang collophane2O5For 20.43%-23.45%), use collophane of the present invention
Leaching-reverse flotation method, obtains concentrate P2O5Content 29.08%-30.66%, response rate 87.63%-89.30% and content of MgO 42%-
1.15%。
Claims (6)
1. collophane leaching-reverse flotation method, it is characterised in that: 1. by collophane ore reduction ore grinding to-200 mesh content
More than 80%, add water move to the ore pulp that concentration is 25% ~ 40%；The most then flow into agitator tank, agitator tank adds 98% sulphuric acid, fills
Stirring is divided to make mineral leach from ore pulp；Add collecting agent in reverse floatation in the most backward ore pulp, carry out carbonate gangue mineral anti-
Flotation, scanning froth pulp is reverse flotation mine tailing, and in initial separatory cell, product is phosphorus concentrate.
A kind of collophane leaching-reverse flotation method the most according to claim 1, it is characterised in that: the 1. described in step
Collophane Ore be: P2O5Grade 20.43% ~ 23.45%, content of MgO 3.52% ~ 5.09%, A.I acid is the most tolerant is 9.74% ~
13.21%。
A kind of collophane leaching-reverse flotation method the most according to claim 1 and 2, it is characterised in that: the 2. institute in step
The agitator tank stated is constituted by two sections, and after one section adds sulphuric acid, ore pulp enters two-stage nitration stirring, and total stirring, extraction time are 5 ~ 7 points
Clock.
A kind of collophane leaching-reverse flotation method the most according to claim 1 and 2, it is characterised in that: the 2. institute in step
The consumption stating 98% sulphuric acid is 42.50 ~ 60.76kg/t collophane Ore.
A kind of collophane leaching-reverse flotation method the most according to claim 1 and 2, it is characterised in that: the 3. institute in step
Stating collecting agent in reverse floatation consumption is 0.63 ~ 2.50kg/t collophane Ore.
A kind of collophane leaching-reverse flotation method the most according to claim 1 and 2, it is characterised in that the described the 3. step
For: add collecting agent in reverse floatation in the most backward ore pulp, carry out carbonate gangue mineral reverse flotation, product in reverse flotation initial separatory cell
Being phosphorus concentrate, roughly select froth pulp entrance and scan operation, in scavenger flotation cell, product returns and roughly selects, and scanning foam is reverse flotation tail
Ore deposit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610135325.XA CN105728177A (en) | 2016-03-10 | 2016-03-10 | Leaching-reverse flotation method of collophanite |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610135325.XA CN105728177A (en) | 2016-03-10 | 2016-03-10 | Leaching-reverse flotation method of collophanite |
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| Publication Number | Publication Date |
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| CN105728177A true CN105728177A (en) | 2016-07-06 |
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| CN201610135325.XA Pending CN105728177A (en) | 2016-03-10 | 2016-03-10 | Leaching-reverse flotation method of collophanite |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114453139A (en) * | 2022-02-28 | 2022-05-10 | 矿冶科技集团有限公司 | Beneficiation method for recycling extremely low-grade phosphorus minerals from iron dressing tailings of gangue minerals and application of beneficiation method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102327809A (en) * | 2011-10-12 | 2012-01-25 | 湖南省矿产测试利用研究所 | Method for removing magnesium oxide from collophanite |
| CN102744152A (en) * | 2012-07-06 | 2012-10-24 | 中蓝连海设计研究院 | Reverse/direct flotation technology of collophanite |
| CN102886306A (en) * | 2012-07-18 | 2013-01-23 | 云南磷化集团有限公司 | Column-slot combined technology for grading calcium collophanite |
| CN103212484A (en) * | 2013-04-18 | 2013-07-24 | 武汉工程大学 | Phosphorite reverse flotation process |
-
2016
- 2016-03-10 CN CN201610135325.XA patent/CN105728177A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102327809A (en) * | 2011-10-12 | 2012-01-25 | 湖南省矿产测试利用研究所 | Method for removing magnesium oxide from collophanite |
| CN102744152A (en) * | 2012-07-06 | 2012-10-24 | 中蓝连海设计研究院 | Reverse/direct flotation technology of collophanite |
| CN102886306A (en) * | 2012-07-18 | 2013-01-23 | 云南磷化集团有限公司 | Column-slot combined technology for grading calcium collophanite |
| CN103212484A (en) * | 2013-04-18 | 2013-07-24 | 武汉工程大学 | Phosphorite reverse flotation process |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114453139A (en) * | 2022-02-28 | 2022-05-10 | 矿冶科技集团有限公司 | Beneficiation method for recycling extremely low-grade phosphorus minerals from iron dressing tailings of gangue minerals and application of beneficiation method |
| CN114453139B (en) * | 2022-02-28 | 2023-08-04 | 矿冶科技集团有限公司 | Beneficiation method for recovering extremely low-grade phosphorus mineral from gangue mineral iron tailings and application thereof |
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Application publication date: 20160706 |
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