CN109046752A - A kind of ore-dressing technique of potassium feldspar - Google Patents

A kind of ore-dressing technique of potassium feldspar Download PDF

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Publication number
CN109046752A
CN109046752A CN201811012549.7A CN201811012549A CN109046752A CN 109046752 A CN109046752 A CN 109046752A CN 201811012549 A CN201811012549 A CN 201811012549A CN 109046752 A CN109046752 A CN 109046752A
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potassium feldspar
ore
iron
feldspar
dressing technique
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邓培有
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Hezhou Chun Xin Mineral Products Co Ltd
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Hezhou Chun Xin Mineral Products Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION 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
    • B03BSEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B7/00Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage

Abstract

The present invention provides a kind of ore-dressing technique of potassium feldspar, it is related to mineral processing technology field, the ore-dressing technique of potassium feldspar of the invention is the following steps are included: (1) is broken, (2) ore grinding, (3) desliming, (4) magnetic separation, (5) flotation, (6) pickling potassium feldspar fine powder, (7) rinse potassium feldspar and (8) are dry;The present invention is from raw ore to final fine powder, and for the rate of recovery up to 90% or more, process flow is simple, easy to operate, and the industrial water generated in technique is recycled, the amount of conserving water, and protects environmental resource.

Description

A kind of ore-dressing technique of potassium feldspar
[technical field]
The present invention relates to mineral processing technology fields, and in particular to a kind of ore-dressing technique of potassium feldspar.
[background technique]
Feldspar be it is a kind of containing calcium, sodium, potassium aluminium silicate mineral, there are many kinds of it, as potassium feldspar, albite, calcium are long Stone, glassy feldspar etc..They all have glassy lustre, and color is varied, have it is colourless, have white, yellow, pink, green, Grey, black etc..Some are transparent, some are translucent.Feldspar itself should be it is colorless and transparent, why coloured or endless full impregnated It is bright, it is because containing other impurities.Some at bulk, some at plate, some are at column or needle-shaped etc..Wherein potassium feldspar is one The important raw material of industry of kind, it is widely used, it is mainly used for the industry such as ceramics, glass, enamel.But in natural potassium feldspar ore usually Containing mica, tourmaline, quartz, weak magnetism mineral etc., some weathering ores also contain kaolin, these impurity components are multiple It is miscellaneous, so that potassium feldspar is restricted in the application of many industrial circles, with the reduction of feldspar ore, quality decline, to product Quality requirement is continuously improved, therefore need to remove impurity component by the selected valuable mineral of the means such as physics, chemical treatment, reduces The content of harmful element, to reach the technical indicator of industrial utilization.
[summary of the invention]
In view of this, the purpose of the present invention is to provide a kind of ore-dressing technique of potassium feldspar, the present invention is from raw ore to final Fine powder, for the rate of recovery up to 90% or more, process flow is simple, easy to operate, and the industrial water generated in technique is recycled, section Water consumption is saved, environmental resource is protected.
In order to solve the above-mentioned technical problem, present invention employs the following technical solutions:
A kind of ore-dressing technique of potassium feldspar, comprising the following steps:
(1) it is crushed: potassium feldspar tcrude ore being crushed with jaw crusher first, and washup is carried out by spiral chute Processing removes the sludge in tcrude ore, and finally dehydration is stand-by;
(2) ore grinding: potassium feldspar raw ore is subjected to ore grinding with ball mill, obtains ore pulp;
(3) desliming: levigate powder material is sent into desliming bucket or cyclone and carries out desliming;
(4) material for removing sludge after sorting magnetic separation: is selected into magnetic iron ore and other weak magnetics through strong and weak magnet separator magnetic Property mineral, low intensity magnetic separation magnetic separation strength be 130-200KA/M, obtain the coarse-fine powder of potassium feldspar;
(5) flotation: reverse flotation is carried out under the pulp density of 46-52% to feldspar rough concentrate, reverse flotation is thick using 1 time Choosing, 1-2 time it is selected, collecting agent in reverse floatation is using sulfonation grease, modified fat is sour, except the mixture of iron collecting agent three, obtains Potassium feldspar fine powder;
(6) pickling potassium feldspar fine powder: being first placed in the sulfuric acid solution of 38-48% as pickle liquor in acidleach iron-removing tank, then Will through step (5), treated that potassium feldspar fine powder is placed in acidleach iron-removing tank, 1-2% hydroximic acid aqueous solution is added, is uniformly mixed, Acidleach removes iron 1-2 days at room temperature, obtains the potassium feldspar after acidleach is except iron;
(7) it rinses potassium feldspar: the material in step (6) being filtered with filter press, filter cake is obtained, uses circulating water flushing Filter cake 4-5 times is collected the flushing liquor after rinsing filter cake and is recycled;
(8) dry: to through step (7), treated, and filter cake is dried, to be made except the feldspar in powder after iron.
In the present invention, further, collector dosage is 600-1000g/t, refining process when roughing in the step (5) The 1/4-1/8 of collector dosage when middle collector dosage is roughing.
In the present invention, further, the iron collecting agent that removes in the step (5) is by oleic acid, the concentrated sulfuric acid and sodium hydroxide Weight ratio be 20:(4-7): the ratio of (5-7) is mixed.
In the present invention, further, sulfonation grease, modified fat are sour in collecting agent in reverse floatation in the step (5), remove iron The ratio of collecting agent is 7:(7-15): (6-12).
It is further, described except iron collecting agent obtains by the following method: first by oleic acid and the concentrated sulfuric acid in the present invention Mixed according to weight ratio after acidification reaction is carried out at 50-85 DEG C, then into the solution after acidification reaction according to weight ratio Sodium hydroxide is added and carries out saponification at 45-85 DEG C, obtains reverse flotation except iron collecting agent.
In the present invention, further, the pickle liquor immersion amount in the step (6) are as follows: every 100g potassium feldspar fine powder is added Pickle liquor is added in the ratio of 60-70ml pickle liquor.
In the present invention, further, the acidleach of the step (6) is except the at a temperature of stirring and constant temperature that iron is at 95-110 DEG C 1-2h is allowed to after sufficiently reacting, then acidleach removes iron 2 days at room temperature.
In the present invention, further, the solid-to-liquid ratio of filter cake and recirculated water is 1:3-5 in the step (7).
In the present invention, further, the mode being recycled in the step (7) to flushing liquor is as follows: will rinse Liquid is put into neutralization pond, green stone is laid in neutralization pond, while quick lime being added into neutralization pond, after mixing 15-20min, 30min is stood, the clear liquid in upper layer is flowed into sedimentation basin, filter cloth is placed in sedimentation basin, colourless alkaline clear liquid is filtered out, by nothing Color alkalinity clear liquid is neutralized to after neutrality, is concentrated with multi-stage reverse osmosis equipment, and the clear water that reverse osmosis separation goes out can be reused for The recirculated water of potassium feldspar after flush acid leaching iron.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are:
1. the ore-dressing technique of potassium feldspar of the present invention, from raw ore to final fine powder, the rate of recovery is up to 90% or more, process flow Simply, easy to operate, the industrial water generated in technique is recycled, the amount of conserving water, and environmental resource is protected, in addition, passing through A series of process efficiently solves the problems, such as that iron-content is high in potassium feldspar, obtains the feldspar in powder of high-quality and high-purity, should Purifying technique can not only meet requirement of the industries such as domestic glass, ceramics, enamel to high whiteness feldspar emery dust, while also have High production efficiency, the features such as low energy consumption, harmless pollution-free.
2. deferrization process of the invention first against potassium feldspar tcrude ore carry out break process, the sludge for tcrude ore of going out, Then module, desliming process are carried out, the superficiality impurity in tcrude ore is removed, then carries out magnetic separation step, owner is made in low intensity magnetic separation Syllabus is the Armco magnetic iron for sorting out the irony brought by ore grinding, while sorting out micro in raw ore, and then the step of flotation, Flotation collector in flotation has to Fe in collecting agent molecule as iron mineral in feldspar or iron-bearing mineral collecting agent2O3High selection Property functional group, to Fe2O3There is good selectivity, while collecting agent has good foamability, to coarse grain iron mineral and adhesion The step of planktonic performance of body particle is excellent, passes through flotation improves the yield of feldspar concentrate, reduces the iron content of feldspar concentrate Amount, in addition, the collecting efficiency for improving potassium feldspar reverse flotation except iron collecting agent except iron collecting agent being added in the present invention, after flotation The lower potassium feldspar fine powder of iron-content is obtained, but also fails to meet well the industries such as domestic glass, ceramics, enamel to high whiteness The requirement of feldspar emery dust then carries out further removing iron by pickling potassium feldspar fine powder, and iron oxides impurities dissolve during acidleach In nitration mixture immersion liquid, hydroximic acid makees the activator of limonite, ferro element can be promoted to be completely dissolved in pickle liquor, to reach The purpose for effectively removing iron, then cleans potassium feldspar with recirculated water, liquid is scrapped in obtained pickling and is handled, green stone is used Son and quick lime are inorganic agent, have effectively neutralized the acid acid in flushing liquor, have eliminated flushing liquor color;Use green stone and raw stone The ash combination wastewater treatment time is short, and flushing liquor is neutralized to after neutrality, is concentrated with multi-stage reverse osmosis equipment, reverse osmosis separation Clear water out can be reused for the recirculated water of the potassium feldspar after flush acid leaching iron;It can be while sufficiently removing iron, due to whole Flushing liquor is recycled in a system, therefore whole system no wastewater discharge, reaches no effuent discharge, not only environmentally friendly to go back Largely reduce costs.
[specific embodiment]
The following examples can help those skilled in the art that the present invention is more fully understood, but cannot be with any Mode limits the present invention.
Embodiment 1
A kind of ore-dressing technique of potassium feldspar provided in this embodiment, comprising the following steps:
(1) it is crushed: potassium feldspar tcrude ore being crushed with jaw crusher first, and washup is carried out by spiral chute Processing removes the sludge in tcrude ore, and finally dehydration is stand-by;
(2) ore grinding: potassium feldspar raw ore is subjected to ore grinding with ball mill, obtains ore pulp;
(3) desliming: levigate powder material is sent into desliming bucket or cyclone and carries out desliming;
(4) material for removing sludge after sorting magnetic separation: is selected into magnetic iron ore and other weak magnetics through strong and weak magnet separator magnetic Property mineral, low intensity magnetic separation magnetic separation strength be 130KA/M, obtain the coarse-fine powder of potassium feldspar;
(5) flotation: reverse flotation is carried out under 46% pulp density to feldspar rough concentrate, reverse flotation uses 1 roughing, 1 Secondary selected, collector dosage is 600g/t when roughing, the 1/4 of collector dosage when collector dosage is roughing in refining process; Collecting agent in reverse floatation by sulfonation grease, modified fat acid, except iron collecting agent ratio be 7:7:6;Except iron collecting agent is by oleic acid, dense The weight ratio of sulfuric acid and sodium hydroxide is that the ratio of 20:4:5 is mixed, except iron collecting agent obtains by the following method: First acidification reaction will be carried out at 50 DEG C after the mixing according to weight ratio of oleic acid and the concentrated sulfuric acid, then to the solution after acidification reaction In sodium hydroxide be added according to weight ratio carry out saponification at 45 DEG C, obtain reverse flotation except iron collecting agent;By reverse flotation After obtain potassium feldspar fine powder, it is spare;
(6) pickling potassium feldspar fine powder: being first placed in 38% sulfuric acid solution as pickle liquor in acidleach iron-removing tank, then will be through Treated that potassium feldspar fine powder is placed in acidleach iron-removing tank for step (5), and 100g potassium feldspar fine powder is added according to every 60ml pickle liquor Ratio potassium feldspar fine powder is added, be subsequently added into 1% hydroximic acid aqueous solution, be uniformly mixed, in 95 DEG C of at a temperature of stirring and permanent Warm 1h is allowed to after sufficiently reacting, then acidleach removes iron 1 day at room temperature, obtains the potassium feldspar after acidleach is except iron;
(7) it rinses potassium feldspar: the material in step (6) being filtered with filter press, filter cake is obtained, uses circulating water flushing Filter cake 4 times, the solid-to-liquid ratio of filter cake and recirculated water is 1:3, collects the flushing liquor after rinsing filter cake and is simultaneously recycled;To flushing The mode that liquid is recycled is as follows: flushing liquor being put into neutralization pond, green stone is laid in neutralization pond, while to neutralization Quick lime is added in pond, after mixing 15min, stands 30min, the clear liquid in upper layer is flowed into sedimentation basin, is put in sedimentation basin Filter cloth is set, colourless alkaline clear liquid is filtered out, colourless alkaline clear liquid is neutralized to after neutrality, is concentrated with multi-stage reverse osmosis equipment, The clear water that reverse osmosis separation goes out can be reused for the recirculated water of the potassium feldspar after flush acid leaching iron;
(8) dry: to through step (7), treated, and filter cake is dried, to be made except the feldspar in powder after iron.
Embodiment 2
A kind of ore-dressing technique of potassium feldspar provided in this embodiment, comprising the following steps:
(1) it is crushed: potassium feldspar tcrude ore being crushed with jaw crusher first, and washup is carried out by spiral chute Processing removes the sludge in tcrude ore, and finally dehydration is stand-by;
(2) ore grinding: potassium feldspar raw ore is subjected to ore grinding with ball mill, obtains ore pulp;
(3) desliming: levigate powder material is sent into desliming bucket or cyclone and carries out desliming;
(4) material for removing sludge after sorting magnetic separation: is selected into magnetic iron ore and other weak magnetics through strong and weak magnet separator magnetic Property mineral, low intensity magnetic separation magnetic separation strength be 160KA/M, obtain the coarse-fine powder of potassium feldspar;
(5) flotation: reverse flotation is carried out under 50% pulp density to feldspar rough concentrate, reverse flotation uses 1 roughing, 1 Secondary selected, collector dosage is 800g/t when roughing, the 1/6 of collector dosage when collector dosage is roughing in refining process; Collecting agent in reverse floatation by sulfonation grease, modified fat acid, except iron collecting agent ratio be 7:10:9;Except iron collecting agent by oleic acid, The weight ratio of the concentrated sulfuric acid and sodium hydroxide is that the ratio of 20:5:6 is mixed, except iron collecting agent is to obtain by the following method : first acidification reaction will be carried out at 67 DEG C after the mixing according to weight ratio of oleic acid and the concentrated sulfuric acid, then to after acidification reaction Sodium hydroxide is added according to weight ratio in solution and carries out saponification at 65 DEG C, obtains reverse flotation except iron collecting agent;By anti- Potassium feldspar fine powder is obtained after flotation, it is spare;
(6) pickling potassium feldspar fine powder: being first placed in 43% sulfuric acid solution as pickle liquor in acidleach iron-removing tank, then will be through Treated that potassium feldspar fine powder is placed in acidleach iron-removing tank for step (5), and 100g potassium feldspar fine powder is added according to every 65ml pickle liquor Ratio be added potassium feldspar fine powder, be subsequently added into 1.5% hydroximic acid aqueous solution, be uniformly mixed, 102 DEG C at a temperature of stir simultaneously Constant temperature 1.5h is allowed to after sufficiently reacting, then acidleach removes iron 1 day at room temperature, obtains the potassium feldspar after acidleach is except iron;
(7) it rinses potassium feldspar: the material in step (6) being filtered with filter press, filter cake is obtained, uses circulating water flushing Filter cake 4 times, the solid-to-liquid ratio of filter cake and recirculated water is 1:4, collects the flushing liquor after rinsing filter cake and is simultaneously recycled;To flushing The mode that liquid is recycled is as follows: flushing liquor being put into neutralization pond, green stone is laid in neutralization pond, while to neutralization Quick lime is added in pond, after mixing 17min, stands 30min, the clear liquid in upper layer is flowed into sedimentation basin, is put in sedimentation basin Filter cloth is set, colourless alkaline clear liquid is filtered out, colourless alkaline clear liquid is neutralized to after neutrality, is concentrated with multi-stage reverse osmosis equipment, The clear water that reverse osmosis separation goes out can be reused for the recirculated water of the potassium feldspar after flush acid leaching iron;
(8) dry: to through step (7), treated, and filter cake is dried, to be made except the feldspar in powder after iron.
Embodiment 3
A kind of ore-dressing technique of potassium feldspar provided in this embodiment, comprising the following steps:
(1) it is crushed: potassium feldspar tcrude ore being crushed with jaw crusher first, and washup is carried out by spiral chute Processing removes the sludge in tcrude ore, and finally dehydration is stand-by;
(2) ore grinding: potassium feldspar raw ore is subjected to ore grinding with ball mill, obtains ore pulp;
(3) desliming: levigate powder material is sent into desliming bucket or cyclone and carries out desliming;
(4) material for removing sludge after sorting magnetic separation: is selected into magnetic iron ore and other weak magnetics through strong and weak magnet separator magnetic Property mineral, low intensity magnetic separation magnetic separation strength be 200KA/M, obtain the coarse-fine powder of potassium feldspar;
(5) flotation: reverse flotation is carried out under 52% pulp density to feldspar rough concentrate, reverse flotation uses 1 roughing, 2 Secondary selected, collector dosage is 1000g/t when roughing, the 1/8 of collector dosage when collector dosage is roughing in refining process; Collecting agent in reverse floatation by sulfonation grease, modified fat acid, except iron collecting agent ratio be 7:15:12;Except iron collecting agent by oleic acid, The weight ratio of the concentrated sulfuric acid and sodium hydroxide is that the ratio of 20:7:7 is mixed, except iron collecting agent is to obtain by the following method : first acidification reaction will be carried out at 85 DEG C after the mixing according to weight ratio of oleic acid and the concentrated sulfuric acid, then to after acidification reaction Sodium hydroxide is added according to weight ratio in solution and carries out saponification at 85 DEG C, obtains reverse flotation except iron collecting agent;By anti- Potassium feldspar fine powder is obtained after flotation, it is spare;
(6) pickling potassium feldspar fine powder: being first placed in 48% sulfuric acid solution as pickle liquor in acidleach iron-removing tank, then will be through Treated that potassium feldspar fine powder is placed in acidleach iron-removing tank for step (5), and 100g potassium feldspar fine powder is added according to every 70ml pickle liquor Ratio potassium feldspar fine powder is added, be subsequently added into 2% hydroximic acid aqueous solution, be uniformly mixed, in 110 DEG C of at a temperature of stirring and permanent Warm 2h is allowed to after sufficiently reacting, then acidleach removes iron 2 days at room temperature, obtains the potassium feldspar after acidleach is except iron;
(7) it rinses potassium feldspar: the material in step (6) being filtered with filter press, filter cake is obtained, uses circulating water flushing Filter cake 5 times, the solid-to-liquid ratio of filter cake and recirculated water is 1:5, collects the flushing liquor after rinsing filter cake and is simultaneously recycled;To flushing The mode that liquid is recycled is as follows: flushing liquor being put into neutralization pond, green stone is laid in neutralization pond, while to neutralization Quick lime is added in pond, after mixing 20min, stands 30min, the clear liquid in upper layer is flowed into sedimentation basin, is put in sedimentation basin Filter cloth is set, colourless alkaline clear liquid is filtered out, colourless alkaline clear liquid is neutralized to after neutrality, is concentrated with multi-stage reverse osmosis equipment, The clear water that reverse osmosis separation goes out can be reused for the recirculated water of the potassium feldspar after flush acid leaching iron;
(8) dry: to through step (7), treated, and filter cake is dried, to be made except the feldspar in powder after iron.
Comparative example 1
A kind of ore-dressing technique of potassium feldspar provided in this embodiment, comprising the following steps:
(1) it is crushed: potassium feldspar tcrude ore being crushed with jaw crusher first, and washup is carried out by spiral chute Processing removes the sludge in tcrude ore, and finally dehydration is stand-by;
(2) ore grinding: potassium feldspar raw ore is subjected to ore grinding with ball mill, obtains ore pulp;
(3) desliming: levigate powder material is sent into desliming bucket or cyclone and carries out desliming;
(4) material for removing sludge after sorting magnetic separation: is selected into magnetic iron ore and other weak magnetics through strong and weak magnet separator magnetic Property mineral, low intensity magnetic separation magnetic separation strength be 150KA/M, obtain the coarse-fine powder of potassium feldspar;
(5) flotation: reverse flotation is carried out under 50% pulp density to feldspar rough concentrate, reverse flotation uses 1 roughing, 1 Secondary selected, collector dosage is 800g/t when roughing, the 1/6 of collector dosage when collector dosage is roughing in refining process; Collecting agent in reverse floatation by sulfonation grease, modified fat acid, except iron collecting agent ratio be 7:10:9;Except iron collecting agent by oleic acid, The weight ratio of the concentrated sulfuric acid and sodium hydroxide is that the ratio of 20:5:6 is mixed, except iron collecting agent is to obtain by the following method : first acidification reaction will be carried out at 67 DEG C after the mixing according to weight ratio of oleic acid and the concentrated sulfuric acid, then to after acidification reaction Sodium hydroxide is added according to weight ratio in solution and carries out saponification at 65 DEG C, obtains reverse flotation except iron collecting agent;By anti- Potassium feldspar fine powder, as finished product are obtained after flotation.
Compliance test result
Illustrate practical value of the invention in order to clearer, applicant does following tests:
By following four groups of potassium feldspars after de_ironing refinement is handled, iron content is measured, and record data such as 1 institute of table Show:
First group: the ore-dressing technique of potassium feldspar described in embodiment 1;
Second group: the ore-dressing technique of potassium feldspar as described in example 2;
Third group: the ore-dressing technique of potassium feldspar described in embodiment 3;
4th group: the ore-dressing technique of potassium feldspar described in comparative example 1.
Partial data contrast table after 1 four groups of potassium feldspar processing of table
Group Potassium feldspar concentrate yield (%) Iron content (%) in concentrate
First group 90.35% 0.11%
Second group 91.63% 0.10%
Third group 91.21% 0.11%
4th group 78.97% 0.37%
According to 1 data of table it is found that its concentrate yield of the potassium feldspar ore-dressing technique of 1-3 of the embodiment of the present invention reach 90% with On, and the feldspar in powder of higher quality and high-purity can be obtained.
Although above the present invention is described in detail with a general description of the specific embodiments, On the basis of the present invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Cause This, these modifications or improvements, fall within the scope of the claimed invention without departing from theon the basis of the spirit of the present invention.

Claims (9)

1. a kind of ore-dressing technique of potassium feldspar, which comprises the following steps:
(1) it is crushed: being first crushed potassium feldspar tcrude ore with jaw crusher, and carried out at washup by spiral chute Reason removes the sludge in tcrude ore, and finally dehydration is stand-by;
(2) ore grinding: potassium feldspar raw ore is subjected to ore grinding with ball mill, obtains ore pulp;
(3) desliming: levigate powder material is sent into desliming bucket or cyclone and carries out desliming;
(4) material for removing sludge after sorting magnetic separation: is selected into magnetic iron ore and other weakly magnetic minerals through strong and weak magnet separator magnetic Object, low intensity magnetic separation magnetic separation strength are 130-200KA/M, obtain the coarse-fine powder of potassium feldspar;
(5) flotation: reverse flotation is carried out under the pulp density of 46-52% to feldspar rough concentrate, reverse flotation uses 1 roughing, 1-2 Secondary selected, collecting agent in reverse floatation uses sulfonation grease, modified fat acid, except the mixture of iron collecting agent three, obtains potassium feldspar Fine powder;
(6) pickling potassium feldspar fine powder: being first placed in the sulfuric acid solution of 38-48% as pickle liquor in acidleach iron-removing tank, then will be through Treated that potassium feldspar fine powder is placed in acidleach iron-removing tank for step (5), and 1-2% hydroximic acid aqueous solution is added, and is uniformly mixed, room temperature Lower acidleach removes iron 1-2 days, obtains the potassium feldspar after acidleach is except iron;
(7) it rinses potassium feldspar: the material in step (6) being filtered with filter press, filter cake is obtained, with circulating water flushing filter cake It 4-5 times, collects the flushing liquor after rinsing filter cake and is recycled;
(8) dry: to through step (7), treated, and filter cake is dried, to be made except the feldspar in powder after iron.
2. a kind of ore-dressing technique of potassium feldspar according to claim 1, which is characterized in that in the step (5) when roughing Collector dosage is 600-1000g/t, the 1/4-1/8 of collector dosage when collector dosage is roughing in refining process.
3. a kind of ore-dressing technique of potassium feldspar according to claim 1, which is characterized in that remove iron in the step (5) It is 20:(4-7 that collecting agent, which is by the weight ratio of oleic acid, the concentrated sulfuric acid and sodium hydroxide): the ratio of (5-7) is mixed.
4. a kind of ore-dressing technique of potassium feldspar according to claim 1, which is characterized in that reverse flotation in the step (5) Sulfonation grease in collecting agent, modified fat acid, except the ratio of iron collecting agent is 7:(7-15): (6-12).
5. a kind of ore-dressing technique of potassium feldspar according to claim 4, which is characterized in that described except iron collecting agent is to pass through What following methods obtained: first acidification reaction will be carried out at 50-85 DEG C after the mixing according to weight ratio of oleic acid and the concentrated sulfuric acid, then Sodium hydroxide is added according to weight ratio into the solution after acidification reaction and carries out saponification at 45-85 DEG C, obtains reverse flotation Except iron collecting agent.
6. a kind of ore-dressing technique of potassium feldspar according to claim 1, which is characterized in that the acidleach in the step (6) Liquid immersion amount are as follows: pickle liquor is added in the ratio that 60-70ml pickle liquor is added in every 100g potassium feldspar fine powder.
7. a kind of ore-dressing technique of potassium feldspar according to claim 1, which is characterized in that the acidleach of the step (6) removes Iron be 95-110 DEG C at a temperature of stirring and constant temperature 1-2h, be allowed to sufficiently react after, then at room temperature acidleach remove iron 2 days.
8. a kind of ore-dressing technique of potassium feldspar according to claim 1, which is characterized in that in the step (7) filter cake with The solid-to-liquid ratio of recirculated water is 1:3-5.
9. a kind of ore-dressing technique of potassium feldspar according to claim 1, which is characterized in that flushing in the step (7) The mode that liquid is recycled is as follows: flushing liquor being put into neutralization pond, green stone is laid in neutralization pond, while to neutralization Quick lime is added in pond, after mixing 15-20min, stands 30min, the clear liquid in upper layer is flowed into sedimentation basin, in sedimentation basin Filter cloth is placed, colourless alkaline clear liquid is filtered out, colourless alkaline clear liquid is neutralized to after neutrality, is carried out with multi-stage reverse osmosis equipment dense Contracting, the clear water that reverse osmosis separation goes out can be reused for the recirculated water of the potassium feldspar after flush acid leaching iron.
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Cited By (4)

* Cited by examiner, † Cited by third party
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CN109847925A (en) * 2018-12-25 2019-06-07 中南大学 A method of potassium feldspar is purified using heating activation reverse flotation technology
CN109909059A (en) * 2019-03-18 2019-06-21 宁夏金瑞源工贸有限公司 The beneficiation method of mud stone in a kind of separation gypsum
CN110898955A (en) * 2019-11-06 2020-03-24 乐山市南联环资科技有限责任公司 Process for producing feed additive by using feldspar tailings
CN110898956A (en) * 2019-11-06 2020-03-24 乐山市南联环资科技有限责任公司 Process for producing feldspar for glaze by utilizing feldspar tailings

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CN109847925A (en) * 2018-12-25 2019-06-07 中南大学 A method of potassium feldspar is purified using heating activation reverse flotation technology
CN109847925B (en) * 2018-12-25 2021-03-30 中南大学 Method for purifying potash feldspar by utilizing heating activation reverse flotation technology
CN109909059A (en) * 2019-03-18 2019-06-21 宁夏金瑞源工贸有限公司 The beneficiation method of mud stone in a kind of separation gypsum
CN109909059B (en) * 2019-03-18 2020-11-10 宁夏金瑞源工贸有限公司 Mineral processing method for separating mudstone from gypsum
CN110898955A (en) * 2019-11-06 2020-03-24 乐山市南联环资科技有限责任公司 Process for producing feed additive by using feldspar tailings
CN110898956A (en) * 2019-11-06 2020-03-24 乐山市南联环资科技有限责任公司 Process for producing feldspar for glaze by utilizing feldspar tailings

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