CN108940575A - A kind of method that feldspar in powder purification is brightened - Google Patents
A kind of method that feldspar in powder purification is brightened Download PDFInfo
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- CN108940575A CN108940575A CN201811001429.7A CN201811001429A CN108940575A CN 108940575 A CN108940575 A CN 108940575A CN 201811001429 A CN201811001429 A CN 201811001429A CN 108940575 A CN108940575 A CN 108940575A
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- feldspar
- flotation
- ball milling
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- magnetic separation
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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
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B1/00—Conditioning for facilitating separation by altering physical properties of the matter to be treated
Abstract
The present invention provides a kind of method that feldspar in powder purification is brightened, including ball milling, magnetic separation, a flotation, secondary flotation and dehydration, first carry out a part of iron in magnetic separation removal potassium feldspar, improve whiteness, then iron and mica are removed by the way of flotation twice, removal influences iron and mica that whiteness is mainly influenced in potassium feldspar, to improve whitening effect.The collecting agent of petroleum sodium sulfonate and enuatrol as flotation is selected in flotation, and secondary flotation selects lauryl amine, dodecyl trimethyl ammonium chloride and hexadecyltrimethylammonium chloride as the collecting agent of choosing.The present invention brightens feldspar in powder using ball milling, magnetic separation, a flotation, secondary flotation and dehydrating process, it is handled in such a way that physical method and chemical method combine, whitening effectiveness is improved, and is avoided using high-concentration sulfuric acid to environment bring pressure.
Description
Technical field
The present invention relates to feldspar in powder processing technique fields, and in particular to a kind of method that feldspar in powder purification is brightened.
Background technique
Potassium feldspar is one kind of spectra, is the rack-like structured calcium silicate containing potassium, is that three homogeneities of KAlSi3O8 are more
Phase variant glassy feldspar, orthoclase and micro- general name for thanking to feldspar.Potassium feldspar has fusing point not high, melting interval time length and molten liquid
Viscosity is high, and the glass state material being melted under high temperature has the characteristics that transparency, is widely used in glass, china and pottery industry neck
Domain.
In recent years, with colour TV glass bulb and super-pressure electroceramics industrial expansion, domestic ceramics is increasingly superior, right
The demand of the low ferripotassium feldspar of high-purity is increasing, and by resource constraint, high-quality amount potassium feldspar is in the gesture that supply falls short of demand.China
Most of potash feldspar ores all need de_ironing refinement and raising whiteness etc., since the limitation of existing ore impurity removing technology is so that removal of impurities effect
Fruit, removal of impurities cost especially clean and are polluted to environment bring so that the removal of impurities separation of ore has bigger difficulty.
Being used for the method for potash feldspar deferrization both at home and abroad at present is mainly magnetic separation and flotation.Magnetic separation has preferably except iron is imitated
Fruit, iron content can be reduced to 0.24%, but other impurity be difficult to remove and the disadvantages of efficiency is low, air pollution is serious.Flotation
With preferable impurity-eliminating effect, simple process, easy processing, but there are processing costs compared with high, energy consumption is big, profit is few；Its work
Skill need to add chemical substance, lead to high production cost, serious waste of resources, and environmental pollution is serious.Also have through pickling in recent years
Method purifies potassium feldspar, and the general method for using sulfuric acid washing, the method has preferable impurity-eliminating effect, and has one
Fixed whitening effect, but the sulfuric acid of high concentration is needed, general concentration will reach 40% or more, and sulfuric acid utilization rate is lower, have
A large amount of spent acid generate, and cause removal of impurities cost high, have greater environmental impacts.Therefore, whiteness and right can be effectively improved by needing one kind
The lesser feldspar in powder method of whitening of environmental pollution.
Summary of the invention
Goal of the invention of the invention is, in view of the above-mentioned problems, a kind of method that feldspar in powder purification is brightened is provided, using ball
Mill, magnetic separation, a flotation, secondary flotation and dehydrating process brighten feldspar in powder, using physical method and chemistry side
The mode that method combines is handled, and improves whitening effectiveness, and avoid using high-concentration sulfuric acid to environment bring pressure.
In order to achieve the above objectives, the technical scheme adopted by the invention is that:
A kind of method that feldspar in powder purification is brightened, comprising the following steps:
S1. ball milling: carrying out break process for tcrude ore, is crushed to the mineral aggregate that partial size is 2~5mm, reenters ball mill ball milling；
Water is added to carry out ball milling, ball milling partial size is 50~100 mesh, obtains ball milling slurry.
S2. magnetic separation: carrying out high-gradient magnetic separation for the ball milling slurry, and the magnetic field strength for controlling high gradient magnetic separator is 0.8
~1.2T, flow rate of slurry are 0.8~2cm/s, and slurry is carried out magnetic separation by high gradient magnetic separator, obtains magnetic separation slurries.
S3. a flotation: being added sulfuric acid, and the pH value of adjustment magnetic separation slurries is 5~6, and collecting agent and foaming agent is then added,
Froth pulp is collected, flotation slurry is obtained；The collecting agent is petroleum sodium sulfonate and enuatrol, and the foaming agent is terpenic oil.
S4. secondary flotation: being added sulfuric acid, and the pH value for adjusting flotation slurry is 2~3, and collecting agent and foaming agent is added, collects
Froth pulp obtains concentrate slurries；The collecting agent is lauryl amine, dodecyl trimethyl ammonium chloride and cetyl trimethyl
Ammonium chloride, the foaming agent are terpenic oil.
S5. it is dehydrated: the concentrate slurries being separated by concentrate cyclone and are classified, the mine of higher underflow density is obtained
Slurry, and be sent into concentration tower and be carried out dehydrating, obtain feldspar in powder.
Preferably, in step S1, the ball milling, the mass ratio that water and mineral aggregate is added is 30~40: 60~70.
Preferably, in step S2, the magnetic field strength for controlling high gradient magnetic separator is 1.0T, flow rate of slurry 1.5cm/s.
Preferably, in step S3, the additional amount of the collecting agent is 80~200g/t.Preferably, petroleum sodium sulfonate and oil
The mass ratio of sour sodium is 1~3: 1.
Preferably, in step S4, the additional amount of the collecting agent is 50~150g/t.
Preferably, the mass ratio of the lauryl amine, dodecyl trimethyl ammonium chloride and hexadecyltrimethylammonium chloride
It is 2~4: 1: 1.
Preferably, in step S3 and S4, the additional amount of the terpenic oil is 50~100g/t.
Due to the adoption of the above technical scheme, the invention has the following advantages:
1. feldspar in powder of the invention purifies the method brightened, using ball milling, magnetic separation, a flotation, secondary flotation and take off
The technique of water brightens feldspar in powder, is handled in such a way that physical method and chemical method combine, improves increasing
White efficiency, and avoid using high-concentration sulfuric acid to environment bring pressure.
A part of iron in magnetic separation removal potassium feldspar is first carried out, whiteness is improved, is then gone by the way of flotation twice
Except iron and mica, removal influences iron and mica that whiteness is mainly influenced in potassium feldspar, to improve whitening effect.First carry out magnetic separation
Then the mode of flotation can be brightened preferably, and during avoiding magnetic separation, impurity enters and removal is not thorough influence whitening effect.
In floatation process, first carry out then carrying out except iron not only contributing to adjust pH except mica, it is energy saving, and can be improved
Except the efficiency of mica, whitening effect is improved on the whole.
2. feldspar in powder of the invention purifies the method brightened, petroleum sodium sulfonate and enuatrol, lauryl amine, ten are selected respectively
The collecting agent of dialkyl group trimethyl ammonium chloride and hexadecyltrimethylammonium chloride as flotation twice, relatively single collecting agent,
It can be improved flotation effect, improve whiteness.
3. feldspar in powder of the invention purifies the method brightened, simple process, efficiency is higher, and the pressure caused by environment
It is smaller, it is worth carrying out industrialization promotion.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Embodiment 1
A kind of method that feldspar in powder purification is brightened, comprising the following steps:
S1. ball milling: carrying out break process for tcrude ore, is crushed to the mineral aggregate that partial size is 2~5mm, reenters ball mill ball milling；
Water is added to carry out ball milling, the mass ratio that water and mineral aggregate is added is 35: 65.Ball milling partial size is 60 mesh, obtains ball milling slurry.
S2. magnetic separation: the ball milling slurry is subjected to high-gradient magnetic separation, the magnetic field strength for controlling high gradient magnetic separator is
Slurry is carried out magnetic separation by high gradient magnetic separator, obtains magnetic separation slurries by 1.0T, flow rate of slurry 1.5cm/s.
S3. a flotation: being added sulfuric acid, and the pH value of adjustment magnetic separation slurries is 5.5, and collecting agent and foaming agent is then added,
Froth pulp is collected, flotation slurry is obtained；The collecting agent is petroleum sodium sulfonate and enuatrol, and the foaming agent is terpenic oil.
The additional amount of the terpenic oil is 70g/t.The additional amount of the collecting agent is 140g/t.The quality of petroleum sodium sulfonate and enuatrol
Than being 2: 1.
S4. secondary flotation: being added sulfuric acid, and the pH value for adjusting flotation slurry is 2.5, and collecting agent and foaming agent is added, collects
Froth pulp obtains concentrate slurries；The collecting agent is lauryl amine, dodecyl trimethyl ammonium chloride and cetyl trimethyl
Ammonium chloride, the foaming agent are terpenic oil.The additional amount of the terpenic oil is 70g/t.The additional amount of the collecting agent is 100g/
t.The mass ratio of the lauryl amine, dodecyl trimethyl ammonium chloride and hexadecyltrimethylammonium chloride is 3: 1: 1.
S5. it is dehydrated: the concentrate slurries being separated by concentrate cyclone and are classified, the mine of higher underflow density is obtained
Slurry, and be sent into concentration tower and be carried out dehydrating, obtain feldspar in powder.
Embodiment 2
A kind of method that feldspar in powder purification is brightened, comprising the following steps:
S1. ball milling: carrying out break process for tcrude ore, is crushed to the mineral aggregate that partial size is 2~5mm, reenters ball mill ball milling；
Water is added to carry out ball milling, the mass ratio that water and mineral aggregate is added is 30: 70.Ball milling partial size is 100 mesh, obtains ball milling slurry.
S2. magnetic separation: the ball milling slurry is subjected to high-gradient magnetic separation, the magnetic field strength for controlling high gradient magnetic separator is
Slurry is carried out magnetic separation by high gradient magnetic separator, obtains magnetic separation slurries by 0.8T, flow rate of slurry 0.8cm/s.
S3. a flotation: being added sulfuric acid, and the pH value of adjustment magnetic separation slurries is 5, and collecting agent and foaming agent is then added, receives
Collect froth pulp, obtains flotation slurry；The collecting agent is petroleum sodium sulfonate and enuatrol, and the foaming agent is terpenic oil.Institute
The additional amount for stating terpenic oil is 50g/t.The additional amount of the collecting agent is 80g/t.The mass ratio of petroleum sodium sulfonate and enuatrol
It is 1: 1.
S4. secondary flotation: being added sulfuric acid, and the pH value for adjusting flotation slurry is 2, and collecting agent and foaming agent is added, collects bubble
Foam product obtains concentrate slurries；The collecting agent is lauryl amine, dodecyl trimethyl ammonium chloride and cetyl trimethyl chlorine
Change ammonium, the foaming agent is terpenic oil.The additional amount of the terpenic oil is 50g/t.The additional amount of the collecting agent is 50g/t.
The mass ratio of the lauryl amine, dodecyl trimethyl ammonium chloride and hexadecyltrimethylammonium chloride is 2: 1: 1.
S5. it is dehydrated: the concentrate slurries being separated by concentrate cyclone and are classified, the mine of higher underflow density is obtained
Slurry, and be sent into concentration tower and be carried out dehydrating, obtain feldspar in powder.
Embodiment 3
A kind of method that feldspar in powder purification is brightened, comprising the following steps:
S1. ball milling: carrying out break process for tcrude ore, is crushed to the mineral aggregate that partial size is 2~5mm, reenters ball mill ball milling；
Water is added to carry out ball milling, the mass ratio that water and mineral aggregate is added is 40: 60.Ball milling partial size is 50 mesh, obtains ball milling slurry.
S2. magnetic separation: the ball milling slurry is subjected to high-gradient magnetic separation, the magnetic field strength for controlling high gradient magnetic separator is
Slurry is carried out magnetic separation by high gradient magnetic separator, obtains magnetic separation slurries by 1.2T, flow rate of slurry 2cm/s.
S3. a flotation: being added sulfuric acid, and the pH value of adjustment magnetic separation slurries is 6, and collecting agent and foaming agent is then added, receives
Collect froth pulp, obtains flotation slurry；The collecting agent is petroleum sodium sulfonate and enuatrol, and the foaming agent is terpenic oil.Institute
The additional amount for stating terpenic oil is 100g/t.The additional amount of the collecting agent is 200g/t.The quality of petroleum sodium sulfonate and enuatrol
Than being 3: 1.
S4. secondary flotation: being added sulfuric acid, and the pH value for adjusting flotation slurry is 3, and collecting agent and foaming agent is added, collects bubble
Foam product obtains concentrate slurries；The collecting agent is lauryl amine, dodecyl trimethyl ammonium chloride and cetyl trimethyl chlorine
Change ammonium, the foaming agent is terpenic oil.The additional amount of the terpenic oil is 100g/t.The additional amount of the collecting agent is 150g/
t.The mass ratio of the lauryl amine, dodecyl trimethyl ammonium chloride and hexadecyltrimethylammonium chloride is 4: 1: 1.
S5. it is dehydrated: the concentrate slurries being separated by concentrate cyclone and are classified, the mine of higher underflow density is obtained
Slurry, and be sent into concentration tower and be carried out dehydrating, obtain feldspar in powder.
Comparative example 1
A kind of feldspar in powder purifies the method brightened, compared with Example 1, first carries out step S3, step S4, then again into
Row step S2, other steps are identical.
Comparative example 2
A kind of method that feldspar in powder purification is brightened, compared with Example 1, first progress step S4, then carries out step again
S3, other steps are identical.
Comparative example 3
A kind of method that feldspar in powder purification is brightened, compared with Example 1, by step S3 and S4 merging, adjusting pH is 4,
Petroleum sodium sulfonate, enuatrol and lauryl amine, dodecyl trimethyl ammonium chloride and hexadecyltrimethylammonium chloride are added simultaneously
A flotation is carried out, other steps are identical.
Comparative example 4
A kind of method that feldspar in powder purification is brightened, compared with Example 1, step S3 uses single trapping agent enuatrol,
Other steps are identical.
Comparative example 5
A kind of method that feldspar in powder purification is brightened, compared with Example 1, step S3 uses single trapping agent lauryl amine,
Other steps are identical.
The obtained potassium feldspar miberal powder of embodiment 1-3 and comparative example 1-5 is obtained through assay:
1 potash feldspar ore meal component table of table
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 | Comparative example 5 | |
| Fe2O3/ % | 0.07 | 0.08 | 0.07 | 0.16 | 0.14 | 0.18 | 0.16 | 0.17 |
| Whiteness | 78 | 75 | 76 | 52 | 54 | 48 | 52 | 50 |
By embodiment 1-3, comparative example 1-4 and 1 data of table it is found that method of the invention can significantly reduce Fe2O3Content,
To improve feldspar in powder whiteness, achieve the purpose that brighten.
Magnetic separation and then the mode of flotation are carried out it can be seen from the data of embodiment 1 and comparative example 1 preferably to be increased
White, during avoiding magnetic separation, impurity enters and removal is not thorough influence whitening effect.
In floatation process it can be seen from the data of embodiment 1 and comparative example 2, first carry out then carrying out except iron except mica,
The efficiency that can be improved removal mica, improves whitening effect on the whole.
It is divided into two steps by floatation process it can be seen from the data of embodiment 1 and comparative example 3 to carry out, it can be in optimal conditions
Lower progress flotation iron impurities and mica impurity, more, whiteness is obviously improved removal effect.
Relatively single collecting agent, can be improved flotation effect, mentions it can be seen from embodiment 1 and the data of comparative example 4-5
High whiteness.
Above description is the detailed description for the present invention preferably possible embodiments, but embodiment is not limited to this hair
Bright patent claim.The same changes or modifications change completed under technical concept suggested by all present invention, should all belong to
In the covered the scope of the patents of the present invention.
Claims (8)
1. a kind of feldspar in powder purifies the method brightened, which comprises the following steps:
S1. ball milling: carrying out break process for tcrude ore, is crushed to the mineral aggregate that partial size is 2~5mm, reenters ball mill ball milling；Add water
Ball milling is carried out, ball milling partial size is 50~100 mesh, obtains ball milling slurry；
S2. magnetic separation: by the ball milling slurry carry out high-gradient magnetic separation, control high gradient magnetic separator magnetic field strength be 0.8~
1.2T, flow rate of slurry are 0.8~2cm/s, and slurry is carried out magnetic separation by high gradient magnetic separator, obtains magnetic separation slurries；
S3. a flotation: being added sulfuric acid, and the pH value of adjustment magnetic separation slurries is 5~6, and collecting agent and foaming agent is then added, collects
Froth pulp obtains flotation slurry；The collecting agent is petroleum sodium sulfonate and enuatrol, and the foaming agent is terpenic oil；
S4. secondary flotation: being added sulfuric acid, and the pH value for adjusting flotation slurry is 2~3, and collecting agent and foaming agent is added, collects foam
Product obtains concentrate slurries；The collecting agent is lauryl amine, dodecyl trimethyl ammonium chloride and cetyl trimethyl chlorination
Ammonium, the foaming agent are terpenic oil；
S5. it is dehydrated: the concentrate slurries being separated by concentrate cyclone and are classified, the ore pulp of higher underflow density is obtained, and
It is sent into concentration tower to be carried out dehydrating, obtains feldspar in powder.
2. feldspar in powder according to claim 1 purifies the method brightened, which is characterized in that in step S1, the ball milling,
The mass ratio that water and mineral aggregate is added is 30~40: 60~70.
3. feldspar in powder according to claim 1 purifies the method brightened, which is characterized in that in step S2, control high ladder
The magnetic field strength for spending magnetic separator is 1.0T, flow rate of slurry 1.5cm/s.
4. feldspar in powder according to claim 1 purifies the method brightened, which is characterized in that in step S3, the collecting
The additional amount of agent is 80~200g/t.
5. feldspar in powder according to claim 4 purifies the method brightened, which is characterized in that petroleum sodium sulfonate and enuatrol
Mass ratio be 1~3: 1.
6. feldspar in powder according to claim 1 purifies the method brightened, which is characterized in that in step S4, the collecting
The additional amount of agent is 50~150g/t.
7. feldspar in powder according to claim 6 purifies the method brightened, which is characterized in that the lauryl amine, dodecane
The mass ratio of base trimethyl ammonium chloride and hexadecyltrimethylammonium chloride is 2~4: 1: 1.
8. feldspar in powder according to claim 1 purifies the method brightened, which is characterized in that described in step S3 and S4
The additional amount of terpenic oil is 50~100g/t.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110479480A (en) * | 2019-08-05 | 2019-11-22 | 西安颐塬钾业有限公司 | A kind of high-purity ultrawhite potassium feldspar material deep process |
| 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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| CN107185721A (en) * | 2017-05-23 | 2017-09-22 | 西北矿冶研究院 | Feldspar and quartz flotation separation combined collecting agent and application method thereof |
| CN108435408A (en) * | 2018-04-10 | 2018-08-24 | 中南大学 | A kind of method of purification of potash feldspar ore |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110479480A (en) * | 2019-08-05 | 2019-11-22 | 西安颐塬钾业有限公司 | A kind of high-purity ultrawhite potassium feldspar material deep process |
| CN110479480B (en) * | 2019-08-05 | 2021-07-20 | 西安颐塬钾业有限公司 | Deep processing technology for high-purity ultra-white potassium feldspar material |
| 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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