CN105750089B - A kind of magnesia collophane method for separating - Google Patents
A kind of magnesia collophane method for separating Download PDFInfo
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- CN105750089B CN105750089B CN201610299996.XA CN201610299996A CN105750089B CN 105750089 B CN105750089 B CN 105750089B CN 201610299996 A CN201610299996 A CN 201610299996A CN 105750089 B CN105750089 B CN 105750089B
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- 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
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Abstract
The present invention relates to a kind of magnesia collophane method for separating.Its technical scheme is：Magnesia collophane is crushed, granularity is finely ground to and accounts for 40 ~ 95wt% less than 0.074mm, is classified, is obtained coarse fraction ore pulp and fine fraction ore pulp, be dehydrated respectively, obtain corresponding coarse fraction collophane and fine fraction collophane.The coarse fraction collophane is adjusted to ore pulp, adds lauryl sodium sulfate, reverse flotation roughing operation is carried out, obtains concentrate I and chats.The fine fraction collophane and the chats are merged into composite ore, are adjusted to ore pulp, sequentially adds regulator and fatty-acid collector, the selected operation of reverse flotation is carried out, obtains concentrate II and mine tailing.Concentrate I and concentrate II are merged, obtain phosphorus concentrate product.The present invention has the characteristics of ore strong adaptability, floating agent consumption is small, beneficiation cost is low and environmental pollution is small.
Description
Technical field
The invention belongs to collophane sorting technology field.More particularly to a kind of magnesia collophane method for separating.
Background technology
China's phosphate rock resource world rankings the 3rd, but grade is generally relatively low, and most of is mid-low grade collophanite ore, is harmful to miscellaneous
Matter content is high, it is necessary to can be just used effectively after enrichment cleans.In mid-low grade collophanite ore, but it is high with content of MgO
Refractory cellophane accounts for the overwhelming majority.At present, magnesia Collophanite de-magging typically uses floatation process, next to that chemical method and roasting disappear
Change method.Current widely used method is reverse floatation process, typically with inorganic acid（Sulfuric acid or phosphoric acid and its derivative）Make
For slurry pH regulator and the inhibitor of Phosphate minerals, fatty-acid collector emersion dolomite is used in weak acidic medium, by phosphorus
Mineral enrichment is in groove.Though the technique is simple, carbonate separative efficiency is high and realizes normal temperature flotation, floating agent is still suffered from
The problem of consumption is big, beneficiation cost is high and environmental pollution is serious.Therefore, magnesia collophane reverse floatation process is optimized has
Important meaning.
It is reported that using collecting agent of the lauryl sodium sulfate as dolomite, to containing dolomite about 50wt% and P2O5Product
Position is 19.25% Yichang phosphate rock,, can be with by roughing, selected and scan operation under conditions of other any medicaments are not added with
Obtain P2O5The phosphorus concentrate that grade is 30.7% and the rate of recovery is 82.86%.But the technique is difficult to effectively sort disseminated grain size carefully, tightly
The magnesia collophane of close symbiosis, while the problem of foam is tacky be present.
" a kind of coarse grain reverse flotation de-magging method for phosphorus ore "（CN 104801418 A）Patented technology, pass through optimization
Reverse flotation work and regime of agent, on the basis of high concentration pulping, coarse grain de-magging is reached using reverse flotation hybrid collector
Effect, reduce phosphorus concentrate content of magnesium.Though the technique can improve phosphorus concentrate quality, it is only applicable to handle coarse grain phosphorus ore, ore
Adaptability is not strong, and sour consumption is larger.
" one kind sorts calcium collophanite post groove process integration "（CN 102886306 A）Patented technology, realize new work
Self-flowing pastefill is realized in the commercial application that skill, new equipment sort in calcium collophanite, roughing, selected operation, can reach energy-conservation drop
The purpose of consumption, and be advantageous to improve flotation effect.But the technique can consume a large amount of phosphoric acid and sulfuric acid, and then cause ore dressing
Cost raises and environmental pollution aggravates.
In summary, although existing reverse floatation process separating effect is preferable, still suffer from that ore adaptability is strong, flotation medicine
The problem of agent consumption is big, beneficiation cost is high and environmental pollution is serious.
The content of the invention
It is contemplated that prior art defect is overcome, and it is an object of the present invention to provide a kind of ore strong adaptability, floating agent consumption
Magnesia collophane method for separating small, beneficiation cost is low and environmental pollution is small.
To achieve the above object, the technical solution adopted by the present invention comprises the concrete steps that：
（1）Magnesia collophane is crushed, it is to account for 40 ~ 95wt% less than 0.074mm to be finely ground to granularity, is classified, it is big to obtain granularity
It is less than 0.038mm fine fraction ore pulp in 0.038mm coarse fraction ore pulp and granularity, is dehydrated respectively, obtains corresponding coarse fraction
Collophane and fine fraction collophane.
（2）The coarse fraction collophane is adjusted to the ore pulp that concentration is 25 ~ 40wt%, is sent into tank diameter I, then to tank diameter I
Lauryl sodium sulfate is added, the addition of the lauryl sodium sulfate in coarse fraction collophane per ton is 0.1 ~ 1.5kg；Carry out
Reverse flotation roughing operation, product I and froth pulp I in groove are obtained, product I is concentrate I in groove, after the dehydration of froth pulp I i.e.
For chats.
（3）By the fine fraction collophane: the mass ratio of the chats is（2~8）: 1 matches somebody with somebody ore deposit, obtains composite ore, by described in
Composite ore is adjusted to the ore pulp that concentration is 20 ~ 35wt%, is sent into tank diameter II, then sequentially add regulator and fat to tank diameter II
Sour collecting agent, the addition of regulator and fatty-acid collector in composite ore per ton is correspondingly 3 ~ 11kg and 0.3 ~ 1.5kg；
The selected operation of reverse flotation is carried out, obtains product II and froth pulp II in groove, product II is concentrate II in groove, froth pulp II
As mine tailing.
（4）The concentrate I and the concentrate II are merged, obtain phosphorus concentrate product.
The P of the magnesia collophane2O5Grade is that 20 ~ 30%, MgO grades are 1 ~ 8%.
The regulator is one or both of sulfuric acid and phosphoric acid.
Due to compared with prior art, being had the positive effect that using above-mentioned technical proposal, the present invention：
1st, the present invention is applied to P2O5Grade is the magnesia collophane that 20 ~ 30%, MgO grades are 1 ~ 8%, ore strong adaptability.
2nd, the present invention makees collecting agent reverse flotation roughing dolomite to coarse fraction collophane using lauryl sodium sulfate, without
Add any regulator, have that reagent consumption is small and the obvious advantage of separating effect.
3rd, the present invention uses graded operation and reverse flotation roughing operation, and energy Pre-sorting goes out 30 ~ 70% phosphorus concentrate, dropped significantly
The low treating capacity of the selected operation of follow-up reverse flotation, reduces the consumption of floating agent, reduces beneficiation cost and protect ring
Border.
4th, the phosphorus concentrate product P that the present invention is obtained2O5Grade is less than 1%, P more than 30% and MgO grades2O5The rate of recovery is big
In 80%.
Therefore, the present invention has ore strong adaptability, the spy that floating agent consumption is small, beneficiation cost is low and environmental pollution is small
Point.
Embodiment
For a better understanding of the present invention, present disclosure is described further with reference to embodiment, but this
The content of invention is not limited solely to the following examples.Any simple modification that all substantive contents according to the present invention are made and
Equivalent structure transformation or modification, it all should be included within the scope of the present invention.
Embodiment 1
A kind of magnesia collophane method for separating.The P of magnesia collophane described in the present embodiment2O5Grade is 20 ~ 25%, MgO product
Position is 4 ~ 8%.The magnesia collophane method for separating comprises the concrete steps that：
（1）Magnesia collophane is crushed, it is to account for 70 ~ 95wt% less than 0.074mm to be finely ground to granularity, is classified, it is big to obtain granularity
It is less than 0.038mm fine fraction ore pulp in 0.038mm coarse fraction ore pulp and granularity, is dehydrated respectively, obtains corresponding coarse fraction
Collophane and fine fraction collophane.
（2）The coarse fraction collophane is adjusted to the ore pulp that concentration is 25 ~ 30wt%, is sent into tank diameter I, then to tank diameter I
Lauryl sodium sulfate is added, the addition of the lauryl sodium sulfate in coarse fraction collophane per ton is 0.1 ~ 1.0kg；Carry out
Reverse flotation roughing operation, product I and froth pulp I in groove are obtained, product I is concentrate I in groove, after the dehydration of froth pulp I i.e.
For chats.
（3）By the fine fraction collophane: the mass ratio of the chats is（5~8）: 1 matches somebody with somebody ore deposit, obtains composite ore, by described in
Composite ore is adjusted to the ore pulp that concentration is 20 ~ 30wt%, is sent into tank diameter II, then sequentially add regulator and fat to tank diameter II
Sour collecting agent, the addition of regulator and fatty-acid collector in composite ore per ton is correspondingly 7 ~ 11kg and 0.5 ~ 1.2kg；
The selected operation of reverse flotation is carried out, obtains product II and froth pulp II in groove, product II is concentrate II in groove, froth pulp II
As mine tailing.
（4）The concentrate I and the concentrate II are merged, obtain phosphorus concentrate product.
Regulator described in the present embodiment is sulfuric acid.
The present embodiment uses graded operation and reverse flotation roughing operation, and energy Pre-sorting goes out 30 ~ 50% phosphorus concentrate；Obtained
Phosphorus concentrate product P2O5Grade is less than 1%, P more than 30% and MgO grades2O5The rate of recovery is more than 80%.
Embodiment 2
A kind of magnesia collophane method for separating.The P of magnesia collophane described in the present embodiment2O5Grade is 25 ~ 30%, MgO product
Position is 1 ~ 4%.The magnesia collophane method for separating comprises the concrete steps that：
（1）Magnesia collophane is crushed, it is to account for 40 ~ 60wt% less than 0.074mm to be finely ground to granularity, is classified, it is big to obtain granularity
It is less than 0.038mm fine fraction ore pulp in 0.038mm coarse fraction ore pulp and granularity, is dehydrated respectively, obtains corresponding coarse fraction
Collophane and fine fraction collophane.
（2）The coarse fraction collophane is adjusted to the ore pulp that concentration is 35 ~ 40wt%, is sent into tank diameter I, then to tank diameter I
Lauryl sodium sulfate is added, the addition of the lauryl sodium sulfate in coarse fraction collophane per ton is 0.8 ~ 1.5kg；Carry out
Reverse flotation roughing operation, product I and froth pulp I in groove are obtained, product I is concentrate I in groove, after the dehydration of froth pulp I i.e.
For chats.
（3）By the fine fraction collophane: the mass ratio of the chats is（2~5）: 1 matches somebody with somebody ore deposit, obtains composite ore, by described in
Composite ore is adjusted to the ore pulp that concentration is 25 ~ 35wt%, is sent into tank diameter II, then sequentially add regulator and fat to tank diameter II
Sour collecting agent, the addition of regulator and fatty-acid collector in composite ore per ton is correspondingly 3 ~ 6kg and 0.3 ~ 1.0kg；
The selected operation of reverse flotation is carried out, obtains product II and froth pulp II in groove, product II is concentrate II in groove, froth pulp II
As mine tailing.
（4）The concentrate I and the concentrate II are merged, obtain phosphorus concentrate product.
Regulator described in the present embodiment is phosphoric acid.
The present embodiment uses graded operation and reverse flotation roughing operation, and energy Pre-sorting goes out 40 ~ 70% phosphorus concentrate；Obtained
Phosphorus concentrate product P2O5Grade is less than 1%, P more than 30% and MgO grades2O5The rate of recovery is more than 92%.
Embodiment 3
A kind of magnesia collophane method for separating.The P of magnesia collophane described in the present embodiment2O5Grade is 22 ~ 28%, MgO product
Position is 2 ~ 6%.The magnesia collophane method for separating comprises the concrete steps that：
（1）Magnesia collophane is crushed, it is to account for 60 ~ 85wt% less than 0.074mm to be finely ground to granularity, is classified, it is big to obtain granularity
It is less than 0.038mm fine fraction ore pulp in 0.038mm coarse fraction ore pulp and granularity, is dehydrated respectively, obtains corresponding coarse fraction
Collophane and fine fraction collophane.
（2）The coarse fraction collophane is adjusted to the ore pulp that concentration is 30 ~ 35wt%, is sent into tank diameter I, then to tank diameter I
Lauryl sodium sulfate is added, the addition of the lauryl sodium sulfate in coarse fraction collophane per ton is 0.3 ~ 1.2kg；Carry out
Reverse flotation roughing operation, product I and froth pulp I in groove are obtained, product I is concentrate I in groove, after the dehydration of froth pulp I i.e.
For chats.
（3）By the fine fraction collophane: the mass ratio of the chats is（3~6）: 1 matches somebody with somebody ore deposit, obtains composite ore, by described in
Composite ore is adjusted to the ore pulp that concentration is 25 ~ 35wt%, is sent into tank diameter II, then sequentially add regulator and fat to tank diameter II
Sour collecting agent, the addition of regulator and fatty-acid collector in composite ore per ton is correspondingly 4 ~ 8kg and 1.0 ~ 1.5kg；
The selected operation of reverse flotation is carried out, obtains product II and froth pulp II in groove, product II is concentrate II in groove, froth pulp II
As mine tailing.
（4）The concentrate I and the concentrate II are merged, obtain phosphorus concentrate product.
Regulator described in the present embodiment is the mixture of sulfuric acid and phosphoric acid.
The present embodiment uses graded operation and reverse flotation roughing operation, and energy Pre-sorting goes out 30 ~ 60% phosphorus concentrate；Obtained
Phosphorus concentrate product P2O5Grade is less than 1%, P more than 30% and MgO grades2O5The rate of recovery is more than 85%.
Present embodiment compared with prior art, has the positive effect that：
1st, present embodiment is applied to P2O5Grade is the magnesia collophane that 20 ~ 30%, MgO grades are 1 ~ 8%, ore
Strong adaptability.
2nd, it is white to make collecting agent reverse flotation roughing to coarse fraction collophane using lauryl sodium sulfate for present embodiment
Marble, without adding any regulator, have that reagent consumption is small and the obvious advantage of separating effect.
3rd, present embodiment uses graded operation and reverse flotation roughing operation, and energy Pre-sorting goes out 30 ~ 70% phosphorus essence
Ore deposit, the treating capacity of the selected operation of follow-up reverse flotation is greatly reduced, reduce the consumption of floating agent, reduce beneficiation cost simultaneously
Protect environment.
4th, the phosphorus concentrate product P that present embodiment is obtained2O5Grade is less than 1%, P more than 30% and MgO grades2O5
The rate of recovery is more than 80%.
Therefore, present embodiment has ore strong adaptability, floating agent consumption is small, beneficiation cost is low and environment is dirty
Contaminate the characteristics of small.
Claims (3)
1. a kind of magnesia collophane method for separating, it is characterised in that methods described comprises the concrete steps that：
(1) magnesia collophane is crushed, it is to account for 40~95wt% less than 0.074mm to be finely ground to granularity, is classified, obtains granularity and be more than
0.038mm coarse fraction ore pulp and granularity is less than 0.038mm fine fraction ore pulp, is dehydrated respectively, obtains corresponding coarse fraction glue
Phosphorus ore and fine fraction collophane；
(2) the coarse fraction collophane is adjusted to the ore pulp that concentration is 25~40wt%, is sent into tank diameter I, then add to tank diameter I
Enter lauryl sodium sulfate, the addition of the lauryl sodium sulfate in coarse fraction collophane per ton is 0.1~1.5kg；Carry out
Reverse flotation roughing operation, concentrate I and froth pulp I are obtained, be chats after the dehydration of froth pulp I；
(3) the fine fraction collophane is pressed: the mass ratio of the chats is (2~8): 1 matches somebody with somebody ore deposit, obtains composite ore, will be described mixed
Close ore deposit and be adjusted to the ore pulp that concentration is 20~35wt%, be sent into tank diameter II, then regulator and fat are sequentially added to tank diameter II
Sour collecting agent, the addition of regulator and fatty-acid collector in composite ore per ton correspondingly for 3~11kg and 0.3~
1.5kg；The selected operation of reverse flotation is carried out, obtains concentrate II and froth pulp II, froth pulp II is mine tailing；
(4) concentrate I and the concentrate II are merged, obtains phosphorus concentrate product.
2. magnesia collophane method for separating according to claim 1, it is characterised in that the P of the magnesia collophane2O5Grade
It is 1~8% for 20~30%, MgO grades.
3. magnesia collophane method for separating according to claim 1, it is characterised in that the regulator is sulfuric acid and phosphoric acid
One or both of.
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| CN107309075A (en) * | 2017-08-08 | 2017-11-03 | 贵州川恒化工股份有限公司 | Collophane beneficiation method |
| WO2021179862A1 (en) * | 2020-03-10 | 2021-09-16 | 中国地质科学院矿产综合利用研究所 | Mineral separation process for medium-low grade mixed collophanite |
| CN112619903A (en) * | 2020-11-10 | 2021-04-09 | 西北矿冶研究院 | Beneficiation method for high-mud high-zinc oxide ore |
| CN112517232B (en) * | 2020-11-18 | 2022-07-29 | 云南磷化集团有限公司 | Flotation method for low-grade collophanite with compact block structure |
| CN113019683A (en) * | 2021-03-11 | 2021-06-25 | 云南磷化集团有限公司 | Treatment method of mixed low-grade collophanite |
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| FR2489715A1 (en) * | 1980-09-08 | 1982-03-12 | Rech Geolog Miniere | PROCESS FOR TREATING MINERALS OF CARBONATE OR SILICOCARBONATE GANG PHASPHATES |
| US5865318A (en) * | 1997-09-05 | 1999-02-02 | Florida Institute Of Phosphate Research | Reverse crago process for siliceous phosphates |
| CN102671758B (en) * | 2012-05-16 | 2013-06-12 | 云南三明鑫疆矿业有限公司 | Direct and reverse flotation desliming process of collophanite |
| CN102744151B (en) * | 2012-07-06 | 2013-09-04 | 中蓝连海设计研究院 | Branch flotation technology for silicon calcium collophanite |
| CN102886306B (en) * | 2012-07-18 | 2015-07-15 | 云南磷化集团有限公司 | Column-slot combined technology for grading calcium collophanite |
| CN103949350B (en) * | 2014-04-27 | 2016-05-25 | 中蓝连海设计研究院 | A kind of dusting cover of low grade silico-calcium matter collophane stage flotation method of regrinding |
| CN104707734B (en) * | 2014-12-17 | 2017-02-22 | 云南磷化集团有限公司 | Process for reducing collophanite flotation tailing grade |
| CN104801418B (en) * | 2015-05-11 | 2017-11-14 | 中蓝连海设计研究院 | A kind of coarse grain reverse flotation de-magging method for phosphorus ore |
| CN104858068B (en) * | 2015-06-09 | 2017-11-14 | 中蓝连海设计研究院 | A kind of method that phosphorite tailings are handled using single direct floatation process |
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