CN109622239A - A kind of potassium feldspar method for concentrating - Google Patents
A kind of potassium feldspar method for concentrating Download PDFInfo
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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
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Abstract
The invention discloses a kind of potassium feldspar method for concentrating, are related to potassium feldspar processing technique field.The method includes raw ore cleaning, screening, broken, ore grinding, flotation and dehydrations, flotation includes flotation, a secondary flotation, flotation is that ore in sand form is tuned into 25-35% ore pulp, pH is tuned into 3-5,8-11% sesbania extract is added, 4-9% coconut extractive is added in stirring, stirring scrapes foam-expelling to blistering;Secondary flotation are as follows: ore in sand form is tuned into the ore pulp of 35-45%, pH is tuned into 1-2, and 3-5% medicament is added, and stirring is scraped foam-expelling to blistering, is dehydrated;The medicament includes Flos Sophorae extract, eucalyptus leaf extract, tea extract and N- dodecyl bi-quaternary ammonium salt.The present invention effectively removes iron tramp and biotite in feldspar, can the high whiteness feldspar in powder of output, and the floating medicament used is environmentally friendly, and nontoxic and pollution-free, obtained feldspar in powder whiteness is better than conventional method up to 61% or more.
Description
[technical field]
The present invention relates to potassium feldspar processing technique field, and in particular to a kind of potassium feldspar method for concentrating.
[background technique]
Potassium feldspar is one kind of feldspar, is common spectra, is the aluminosilicate of potassium.Potassium feldspar is generally glassy
Crystal, it is to manufacture one of glass and the primary raw material of ceramics.In recent years, swift and violent with China's china industry and glass industries
Development, the demand to high-purity potassium feldspar are continuously increased.Iron mineral, titanium oxide, mica, quartz are the main miscellaneous of potash feldspar ore
Matter, mica are mainly biotite, zinnwaldite and euchlorite, influence whiteness, dielectric properties, the chemical stability etc. of ceramics.
Feldspar iron-removing method is mainly magnetic separation, acidleach and flotation at present, but magnetic separation the high requirements on the equipment, acidleach and flotation are arranged
Object toxic action is big out, and environmental pollution is serious, such as document " the iron new process that removes of potassium feldspar is studied ", Tang Kai etc. the, " present ageization
Work ", 2008,37 (5): 456-458, research, which is thought to impregnate at 90 DEG C using sulfuric acid, can remove most of iron impurities, meanwhile, choosing
It is that floating agent continues with potassium oleate, Potassium dodecylbenzenesulfonate, AES and AOS, iron can be removed, but acid solution and flotation
Medicament, which largely discharges, can endanger environment.
Mica is lower in the content of Minerals And Rocks, but it is larger to the whiteness and qualitative effects of feldspar ore, and mica belongs to
The silicate mineral of layer structure, acid and alkali-resistance, chemical property are stablized, are difficult to be removed.The method of mica removal at this stage is main
Are as follows: mica is captured using beneficiation reagent under certain condition, separates it from feldspar, commonly floating medicament is living for surface
Chemical agents, the most medicaments such as property agent, ionic collecting agent are noxious material, largely use and discharge pollutes the environment.Such as
Chinese patent 201710843849.9 discloses a kind of feldspar in powder preparation method, cleaned, screening, be crushed by raw ore,
The a series of physical such as ore grinding, magnetic separation and dehydration method removes impurity, obtains the potassium feldspar that irony is few, whiteness is high, but fail
Except mica, purity is not high;Such as document " feldspar ore removes the research brightened of mica ", Pan great Wei etc., " Chinese pottery ", 2015 (1):
54-57, research think that using quality proportioning is the mixed thing of the lauryl amine of 2:1 and octadecylamine as floating agent, removes feldspar
Mica in mine, but lauryl amine is infectious agent, largely uses and discharge pollutes the environment, therefore, the application is according to above-mentioned public affairs
Document is opened to improve the preparation of potassium feldspar and impurity-removing method.In addition, biotite content is very in the potassium feldspar of south china area
Height seriously affects feldspar whiteness, and the method without specially removing biotite in the prior art, the application are directed to He Prefecture area potassium
Feldspar mica feature, it is intended to not only environmental protection is found out but also the method for the potent removal biotite of energy, to improve this area potassium feldspar into quality
Amount.
[summary of the invention]
In view of the above-mentioned problems, the technical problem to be solved in the present invention is to provide a kind of potassium feldspar method for concentrating, this method energy
Effectively remove the iron tramp and biotite in feldspar, can produce high whiteness, low iron, low clouds mothers feldspar in powder, and use
Floating medicament is environmentally friendly, nontoxic and pollution-free.
In order to solve the above technical problems, The technical solution adopted by the invention is as follows:
A kind of potassium feldspar method for concentrating, including raw ore cleaning, screening, broken, ore grinding, flotation and dehydration, the flotation packet
Include flotation, a secondary flotation;
Flotation are as follows: obtained to ore grinding >=200 mesh fine sand grains in plus water be tuned into concentration be 25-35% mine
Slurry, is tuned into 3-5 for pH values of pulp, and the sesbania extract of the ore pulp quality 8-11% is added, and stirs 2-4min, is subsequently added into described
The coconut extractive of ore pulp quality 4-9%, stirring are scraped foam-expelling, are rinsed well with clear water to blistering, and dehydration to water content≤
25%, obtain deferrization ore in sand form;
The secondary flotation are as follows: into deferrization ore in sand form plus water is tuned into concentration and is the ore pulp of 35-45%, and pH values of pulp is tuned into
After 1-2, it is added the medicament of the ore pulp quality 3-5%, stirring scrapes foam-expelling to blistering, dehydration to water content≤15%, i.e.,
?;According to parts by weight, the medicament is mainly by 9-16 parts of Flos Sophorae extracts, 18-25 parts of eucalyptus leaf extracts, 8-15 portions of tealeaves
Extract and 9-17 parts of N- dodecyl bi-quaternary ammonium salts are blended.
Further, the sesbania extract the preparation method comprises the following steps: Sesbania seed is taken to soak in water 6-8h, pull out, grind
After 8-10min, the water that 30-40 times of weight is added is mixed, and centrifugation takes supernatant, and the supernatant 20-30 weight is added to supernatant
The mass concentration of amount times is the ethanol solution of 60-70%, is stood to Precipitation, and centrifugation takes precipitating, be dried in vacuo to get.
Further, the coconut extractive the preparation method comprises the following steps: fresh coconut meat is taken to crush after, the 80- of equivalent is added
90 DEG C of water grinds 10-20min, is cooled to 40-45 DEG C, and the alpha-amylase processing of the coconut meat weight 0.1-0.3% is added
30-50min, the papain for being subsequently added into the coconut meat weight 0.1-0.3% continue to digest 30-40min, filter cloth mistake
Filter, take filtrate to be centrifuged, take upper liquid to get.
Further, the Flos Sophorae extract is decocted the preparation method comprises the following steps: fresh sophora flower is taken to be added in the water of 8-10 times of weight
1-2h is boiled, is filtered, original volume 1/2 is concentrated the filtrate to, stands 10-20h, is filtered, takes precipitating that the quality of 30-40 times of weight is added
Concentration be 85-95% ethanol solution in, refluxing extraction 2-3h, collect extracting solution to get.
Further, the eucalyptus leaf extract the preparation method comprises the following steps: fresh eucalyptus leaves is taken to be dried to perseverance at 40-50 DEG C
Weight crushes, and crosses 20-40 mesh, obtains coarse powder, coarse powder is put into distiller together with water and distills 3-4h, collects oily phase, will collect
Obtain oil 1-2h is freezed at -20 DEG C to -15 DEG C, centrifugation, take solids heating and melting to get.
Further, the tea extract the preparation method comprises the following steps: tealeaves is taken to grind after, be added 20-30 times of weight water,
It is heated to 70-85 DEG C, keeps temperature-resistant extraction 2-3h, it is cooling, it filters, filtrate is added to the aluminium chloride of the 0.1mol/L of equivalent
In solution, pH is adjusted to 5-6, stands to precipitating and generates, filters, will be precipitated and dissolved in the hydrochloric acid solution of 0.018mol/L,
And 10-20min is extracted with ethyl acetate, collect extract liquor, be distilled to recover ethyl acetate, collect remaining solid object to get.
Preferably, according to parts by weight, the medicament is mainly by 11 parts of Flos Sophorae extracts, 20 parts of eucalyptus leaf extracts, 10
Part tea extract and 15 parts of N- dodecyl bi-quaternary ammonium salts are blended.
Compared with prior art, the invention has the following beneficial effects:
1. the present invention effectively removes iron tramp and biotite in feldspar, can produce by making improvement to method for floating
Out high whiteness, low iron, low clouds mother feldspar in powder, and the floating medicament used is environmentally friendly, and nontoxic and pollution-free, obtained potassium is long
Mountain flour whiteness is up to 61% or more, and compared with traditional method for floating, the medicament used is nontoxic and pollution-free, environmentally friendly.
2. present invention employs method for floating twice to clean, first mixed with sesbania extract and ore pulp in a flotation
It closes, sesbania extract acts on feldspar particle, increases the wetability of feldspar particle, improves its hydrophily, make to be not easy to be attached to gas
On bubble, it is subsequently added into coconut extractive, coconut extractive can not only blister, moreover it is possible to be attached to Ferrous particles surface, enhance it and dredge
Aqueous energy, is adhered Ferrous particles on bubble, to be disposed of, therefore, sesbania extract and coconut extractive are made jointly
With having effectively removed the iron tramp in feldspar.In secondary flotation, Flos Sophorae extract can make biotite surface moist small, Yi Fu,
The floatability of biotite is promoted, bubble is improved and biotite is sticked;Foaming effect can be improved in eucalyptus leaf extract;Tealeaves mentions
It takes object that feldspar particle can be made to precipitate, reduces the floatability of feldspar particle, reduce bubble and feldspar particle is sticked;N- dodecyl
Bi-quaternary ammonium salt is non-toxic cation surfactant, adsorbable mica particles;Therefore, Flos Sophorae extract, eucalyptus leaf extract, tea
Leaf extract and N- dodecyl bi-quaternary ammonium salt synergistic effect, improve the adhesion strength between bubble and biotite, reduce
Adhesion strength between bubble and feldspar makes capture and the Selective long-range DEPT of medicament, effectively removes the biotite in feldspar ore.
And each medicament is nontoxic, and it is from a wealth of sources, it is low in cost, it is suitble to promote the use of.
[specific embodiment]
A specific embodiment of the invention is described further with reference to embodiments.
Embodiment 1
A kind of potassium feldspar method for concentrating of the present embodiment, including raw ore cleaning, screening, broken, ore grinding, flotation and dehydration, institute
Stating flotation includes flotation, a secondary flotation;
Flotation are as follows: into the 200 mesh fine sand grains that ore grinding obtains plus water is tuned into the ore pulp that concentration is 25%, will
PH values of pulp is tuned into 3, and the sesbania extract of the ore pulp quality 8% is added, and stirs 2min, is subsequently added into the ore pulp quality 4%
Coconut extractive, stirring to blister, scrape foam-expelling, rinsed well with clear water, be dehydrated to water content 25%, obtain deferrization ore in sand form;
Sesbania polyoses content is 109mg/100g in the sesbania extract, and coconut oil volumetric concentration is 90% in coconut extractive.
The secondary flotation are as follows: into deferrization ore in sand form plus water is tuned into concentration and is 35% ore pulp, and pH values of pulp is tuned into 1
Afterwards, be added the medicament of the ore pulp quality 3%, stirring scrapes foam-expelling to blistering, dehydration to water content 15% to get;By weight
Number meter, the medicament is mainly by 16 parts of Flos Sophorae extracts, 25 parts of eucalyptus leaf extracts, 15 parts of tea extracts and 17 parts of N- ten
Dialkyl group bi-quaternary ammonium salt is blended.The Flos Sophorae extract quercetin content is 13mg/g, eucalyptus oil in eucalyptus leaf extract
Volumetric concentration is 90%, and tea tannin mass percentage is 52% in tea extract.
The sesbania extract the preparation method comprises the following steps: Sesbania seed is taken to soak in water 6h, pull out, after grinding 8min, be added
The water of 30 times of weight mixes, and centrifugation takes supernatant, and the mass concentration that 20 times of weight of supernatant is added to supernatant is 60%
Ethanol solution, stand to Precipitation, centrifugation takes precipitating, be dried in vacuo to get.
The coconut extractive the preparation method comprises the following steps: fresh coconut meat is taken to crush after, 80 DEG C of the water grinding of equivalent is added
10min is cooled to 40 DEG C, and the alpha-amylase processing 30min of the coconut meat weight 0.1% is added, is subsequently added into the coconut
The papain of meat weight 0.1% continues to digest 30min, and filter-cloth filtering takes filtrate to be centrifuged, take upper liquid to get.
The Flos Sophorae extract the preparation method comprises the following steps: taking fresh sophora flower to be added in the water of 10 times of weight decocts 2h, filter, will
Filtrate is concentrated into original volume 1/2, stands 20h, filters, and takes precipitating that the ethanol solution that the mass concentration of 40 times of weight is 95% is added
In, refluxing extraction 3h, collect extracting solution to get.
The eucalyptus leaf extract the preparation method comprises the following steps: taking fresh eucalyptus leaves, drying to constant weight at 40 DEG C, crush, cross 20
Mesh obtains coarse powder, and coarse powder is put into distiller together with water and distills 3h, collects oily phase, will collect obtained oil at -20 DEG C
Freeze 1h, centrifugation, take solids heating and melting to get.
The tea extract the preparation method comprises the following steps: tealeaves is taken to grind after, be added 30 times of weight water, be heated to 85 DEG C,
Temperature-resistant extraction 3h is kept, it is cooling, it filters, filtrate is added in the liquor alumini chloridi of the 0.1mol/L of equivalent, pH is adjusted
It is 6, stands to precipitating and generate, filters, will be precipitated and dissolved in the hydrochloric acid solution of 0.018mol/L, and be extracted with ethyl acetate
20min, collect extract liquor, be distilled to recover ethyl acetate, collect remaining solid object to get.
Embodiment 2
A kind of potassium feldspar method for concentrating of the present embodiment, including raw ore cleaning, screening, broken, ore grinding, flotation and dehydration, institute
Stating flotation includes flotation, a secondary flotation;
Flotation are as follows: into the 250 mesh fine sand grains that ore grinding obtains plus water is tuned into the ore pulp that concentration is 35%, will
PH values of pulp is tuned into 5, and the sesbania extract of the ore pulp quality 11% is added, and stirs 4min, is subsequently added into the ore pulp quality 9%
Coconut extractive, stirring to blister, scrape foam-expelling, rinsed well with clear water, dehydration to water content be 20%, obtain deferrization mine
Sand;;Sesbania polyoses content is 120mg/100g in the sesbania extract, and coconut oil volumetric concentration is in coconut extractive
95%.
The secondary flotation are as follows: into deferrization ore in sand form plus water is tuned into concentration and is 45% ore pulp, and pH values of pulp is tuned into 2
Afterwards, be added the medicament of the ore pulp quality 5%, stirring scrapes foam-expelling to blistering, dehydration to water content be 12% to get;By weight
Number meter is measured, the medicament is mainly by 9 parts of Flos Sophorae extracts, 18 parts of eucalyptus leaf extracts, 8 parts of tea extracts and 9 parts of N- ten
Dialkyl group bi-quaternary ammonium salt is blended.The Flos Sophorae extract quercetin content is 10mg/g, eucalyptus oil in eucalyptus leaf extract
Volumetric concentration is 90%, and tea tannin mass percentage is 49% in tea extract.
The sesbania extract the preparation method comprises the following steps: Sesbania seed is taken to soak in water 8h, pull out, after grinding 10min, be added
The water of 40 times of weight mixes, and centrifugation takes supernatant, and the mass concentration that 30 times of weight of supernatant is added to supernatant is 70%
Ethanol solution, stand to Precipitation, centrifugation takes precipitating, be dried in vacuo to get.
The coconut extractive the preparation method comprises the following steps: fresh coconut meat is taken to crush after, 90 DEG C of the water grinding of equivalent is added
20min is cooled to 45 DEG C, and the alpha-amylase processing 50min of the coconut meat weight 0.3% is added, is subsequently added into the coconut
The papain of meat weight 0.3% continues to digest 40min, and filter-cloth filtering takes filtrate to be centrifuged, take upper liquid to get.
The Flos Sophorae extract the preparation method comprises the following steps: taking fresh sophora flower to be added in the water of 8 times of weight decocts 1h, filter, will
Filtrate is concentrated into original volume 1/2, stands 10h, filters, and takes precipitating that the ethanol solution that the mass concentration of 30 times of weight is 85% is added
In, refluxing extraction 2h, collect extracting solution to get.
The eucalyptus leaf extract the preparation method comprises the following steps: taking fresh eucalyptus leaves, drying to constant weight at 50 DEG C, crush, cross 40
Mesh obtains coarse powder, and coarse powder is put into distiller together with water and distills 4h, collects oily phase, will collect obtained oil at -15 DEG C
Freeze 2h, centrifugation, take solids heating and melting to get.
The tea extract the preparation method comprises the following steps: tealeaves is taken to grind after, be added 20 times of weight water, be heated to 70 DEG C,
Temperature-resistant extraction 2h is kept, it is cooling, it filters, filtrate is added in the liquor alumini chloridi of the 0.1mol/L of equivalent, pH is adjusted
It is 5, stands to precipitating and generate, filters, will be precipitated and dissolved in the hydrochloric acid solution of 0.018mol/L, and be extracted with ethyl acetate
10min, collect extract liquor, be distilled to recover ethyl acetate, collect remaining solid object to get.
Embodiment 3
A kind of potassium feldspar method for concentrating of the present embodiment, including raw ore cleaning, screening, broken, ore grinding, flotation and dehydration, institute
Stating flotation includes flotation, a secondary flotation;
Flotation are as follows: into the 300 mesh fine sand grains that ore grinding obtains plus water is tuned into the ore pulp that concentration is 30%, will
PH values of pulp is tuned into 4, and the sesbania extract of the ore pulp quality 9% is added, and stirs 3min, is subsequently added into the ore pulp quality 6%
Coconut extractive, stirring to blister, scrape foam-expelling, rinsed well with clear water, dehydration to water content be 18%, obtain deferrization mine
Sand;Sesbania polyoses content is 105mg/100g in the sesbania extract, and coconut oil volumetric concentration is 92% in coconut extractive.
The secondary flotation are as follows: into deferrization ore in sand form plus water is tuned into concentration and is 40% ore pulp, and pH values of pulp is tuned into 1.5
Afterwards, be added the medicament of the ore pulp quality 4%, stirring scrapes foam-expelling to blistering, dehydration to water content be 11% to get;By weight
Number meter is measured, the medicament is mainly by 11 parts of Flos Sophorae extracts, 20 parts of eucalyptus leaf extracts, 10 parts of tea extracts and 15 parts of N-
Dodecyl bi-quaternary ammonium salt is blended.The Flos Sophorae extract quercetin content is 12mg/g, folium eucalypti in eucalyptus leaf extract
Oil volume concentration is 90%, and tea tannin mass percentage is 48% in tea extract.
The sesbania extract the preparation method comprises the following steps: Sesbania seed is taken to soak in water 7h, pull out, after grinding 9min, be added
The water of 35 times of weight mixes, and centrifugation takes supernatant, and the mass concentration that 25 times of weight of supernatant is added to supernatant is 65%
Ethanol solution, stand to Precipitation, centrifugation takes precipitating, be dried in vacuo to get.
The coconut extractive the preparation method comprises the following steps: fresh coconut meat is taken to crush after, 85 DEG C of the water grinding of equivalent is added
15min is cooled to 42 DEG C, and the alpha-amylase processing 40min of the coconut meat weight 0.2% is added, is subsequently added into the coconut
The papain of meat weight 0.2% continues to digest 35min, and filter-cloth filtering takes filtrate to be centrifuged, take upper liquid to get.
The Flos Sophorae extract the preparation method comprises the following steps: taking fresh sophora flower to be added in the water of 9 times of weight decocts 1.5h, filter,
Original volume 1/2 is concentrated the filtrate to, 15h is stood, is filtered, takes precipitating that the ethyl alcohol that the mass concentration of 35 times of weight is 90% is added molten
In liquid, refluxing extraction 2.5h, collect extracting solution to get.
The eucalyptus leaf extract the preparation method comprises the following steps: taking fresh eucalyptus leaves, drying to constant weight at 45 DEG C, crush, cross 30
Mesh obtains coarse powder, and coarse powder is put into distiller together with water and distills 3.5h, collects oily phase, will collect obtained oil in -18 DEG C
Lower freezing 1.5h, centrifugation, take solids heating and melting to get.
The tea extract the preparation method comprises the following steps: tealeaves is taken to grind after, be added 25 times of weight water, be heated to 80 DEG C,
Temperature-resistant extraction 2.5h is kept, it is cooling, it filters, filtrate is added in the liquor alumini chloridi of the 0.1mol/L of equivalent, by pH tune
Whole is 5.5, stands to precipitating and generates, and filters, will be precipitated and dissolved in the hydrochloric acid solution of 0.018mol/L, and extracted with ethyl acetate
Take 15min, collect extract liquor, be distilled to recover ethyl acetate, collect remaining solid object to get.
De-ferrous effect test:
Control group 1: in potassium feldspar method for concentrating, a flotation (removing iron) is replaced using conventional magnetic selection method, i.e., by ore grinding
Obtained ore pulp passes sequentially through weak magnetic electromagnetic dressing equipment and strong magnetic electromagnetic dressing equipment to remove irony sundries, then carries out again
Secondary flotation removes mica, other steps such as: raw ore cleaning, screening, broken, ore grinding, secondary flotation and dehydration with implementation
Example 3 is identical.
Control group 2: in potassium feldspar method for concentrating, a flotation (removing iron) is replaced using conventional acid leaching method, i.e., by ore grinding
Obtained ore in sand form, which is put into sulfuric acid solution, to be impregnated to remove irony sundries, then carries out secondary flotation again except mica, other steps
Such as: raw ore cleaning, screening, broken, ore grinding, secondary flotation and dehydration are same as Example 3.
Control group 3: in potassium feldspar method for concentrating, a flotation (removing iron) replaces sesbania extract and coconut palm using conventional dose
Seed extract, conventional dose are potassium oleate, Potassium dodecylbenzenesulfonate, AES and AOS, and dosage is optimal dosage, then again
Carry out secondary flotation and remove mica, other steps such as: raw ore cleaning, screening, broken, ore grinding, secondary flotation and dehydration with
Embodiment 3 is identical.
Control group 4: in potassium feldspar method for concentrating, the medicament that a flotation (removing iron) uses is free of sesbania extract, containing only
Coconut extractive, then carries out secondary flotation except mica again, other steps such as: it is raw ore cleaning, screening, broken, ore grinding, secondary floating
Choosing and dehydration are same as Example 3.
Control group 5: in potassium feldspar method for concentrating, the medicament that a flotation (removing iron) uses is free of coconut extractive, containing only
Sesbania extract, then carries out secondary flotation except mica again, other steps such as: it is raw ore cleaning, screening, broken, ore grinding, secondary floating
Choosing and dehydration are same as Example 3.
Respectively by embodiment 3, control group 1 to 5 each group of control group except the main iron impurities of ore (three oxidations two before and after iron
Iron) content detected, it the results are shown in Table 1:
1 each group of table is except ferric oxide content situation of change (wt%) before and after iron
From the comparison of embodiment 3 and control group 1, control group 2, control group 3 it is found that the method for the present invention de-ironing efficiency and magnetic
Choosing, acidleach, conventional dose flotation are suitable, reach state of the art, and the safer environmental protection compared with conventional flotation medicament.From reality
The comparison of example 3 and control group 4, control group 5 is applied it is found that sesbania extract of the present invention and coconut extractive synergy, effectively go
In addition to the iron tramp in feldspar.
Except biotite effect test:
Comparative example 1
Any medicament is not used when flotation, other steps are same as Example 1.
Comparative example 2
When flotation, medicament is conventional use of medicament, i.e. the mixed thing of lauryl amine and octadecylamine, quality proportioning 2:1,
His step is same as Example 1.
Comparative example 3
When flotation, medicament is mainly by 25 parts of eucalyptus leaf extracts, 15 parts of tea extracts and 17 parts of N- dodecyls double seasons
Ammonium salt is blended, other steps are same as Example 1.
Comparative example 4
When flotation, medicament is mainly by 16 parts of Flos Sophorae extracts, 25 parts of eucalyptus leaf extracts and 17 parts of N- dodecyls double seasons
Ammonium salt is blended, other steps are same as Example 1.
Comparative example 5
When flotation, the main 16 parts of Flos Sophorae extracts of medicament, 15 parts of tea extracts and 17 parts of N- dodecyl bi-quaternary ammonium salts
It is blended, other steps are same as Example 1.
Above-described embodiment and comparative example obtain feldspar in powder whiteness (biotite content is fewer, and whiteness is higher) and are shown in Table 2:
The comparison of 2 each group whiteness of table
Project/group | Whiteness (1200 °) |
Embodiment 1 | 61.9% |
Embodiment 2 | 61.8% |
Embodiment 3 | 62.7% |
Comparative example 1 (blank) | 33.1% |
Comparative example 2 (routine) | 60.7% |
Comparative example 3 (no Flos Sophorae extract) | 42.1% |
Comparative example 4 (no tea extract) | 43.0% |
Comparative example 5 (no eucalyptus leaf extract) | 48.3% |
As known from Table 2:
(1) present invention has effectively removed the biotite in feldspar, has produced Gao Bai by making improvement to method for floating
It spends, the high-quality feldspar in powder of low clouds mother, obtained feldspar in powder whiteness is up to 61.8%-62.7%, is above conventional method
(60.7%).
(2) compared with traditional method for floating, the medicament used is nontoxic and pollution-free, environmentally friendly.
(3) Flos Sophorae extract, eucalyptus leaf extract, tea extract and N- dodecyl bi-quaternary ammonium salt synergistic effect, make
The capture of medicament and Selective long-range DEPT effectively remove the biotite in feldspar ore, further improve 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, it is all the present invention suggested by technical spirit under completed same changes or modifications change, should all belong to
In the covered the scope of the patents of the present invention.
Claims (7)
1. a kind of potassium feldspar method for concentrating, including raw ore cleaning, screening, broken, ore grinding, flotation and dehydration, which is characterized in that institute
Stating flotation includes flotation, a secondary flotation;
Flotation are as follows: obtained to ore grinding >=200 mesh fine sand grains in plus water be tuned into concentration be 25-35% ore pulp,
PH values of pulp is tuned into 3-5, the sesbania extract of the ore pulp quality 8-11% is added, 2-4min is stirred, is subsequently added into the mine
The coconut extractive of quality 4-9% is starched, stirring is scraped foam-expelling, is rinsed well with clear water to blistering, dehydration to water content≤
25%, obtain deferrization ore in sand form;
The secondary flotation are as follows: into deferrization ore in sand form plus water is tuned into concentration and is the ore pulp of 35-45%, and pH values of pulp is tuned into 1-2
Afterwards, be added the medicament of the ore pulp quality 3-5%, stirring scrapes foam-expelling to blistering, dehydration to water content≤15% to get;It presses
Parts by weight meter, the medicament are mainly extracted by 9-16 parts of Flos Sophorae extracts, 18-25 parts of eucalyptus leaf extracts, 8-15 portions of tealeaves
Object and 9-17 parts of N- dodecyl bi-quaternary ammonium salts are blended.
2. a kind of potassium feldspar method for concentrating according to claim 1, it is characterised in that: the preparation side of the sesbania extract
Method are as follows: it takes Sesbania seed to soak in water 6-8h, pulls out, after grinding 8-10min, the water that 30-40 times of weight is added is mixed, centrifugation,
Supernatant is taken, the mass concentration that the supernatant 20-30 times of weight is added to supernatant is the ethanol solution of 60-70%, is stood
To Precipitation, centrifugation takes precipitating, be dried in vacuo to get.
3. a kind of potassium feldspar method for concentrating according to claim 1, it is characterised in that: the preparation side of the coconut extractive
Method are as follows: after taking fresh coconut meat to crush, 80-90 DEG C of the water grinding 10-20min of equivalent is added, is cooled to 40-45 DEG C, is added
The alpha-amylase of the coconut meat weight 0.1-0.3% handles 30-50min, is subsequently added into the coconut meat weight 0.1-0.3%
Papain continue to digest 30-40min, filter-cloth filtering takes filtrate to be centrifuged, take upper liquid to get.
4. a kind of potassium feldspar method for concentrating according to claim 1, it is characterised in that: the preparation side of the Flos Sophorae extract
Method are as follows: take fresh sophora flower to be added in the water of 8-10 times of weight and decoct 1-2h, filter, concentrate the filtrate to original volume 1/2, stand
10-20h is filtered, and taking precipitating that the mass concentration of 30-40 times of weight is added is refluxing extraction 2- in the ethanol solution of 85-95%
3h, collect extracting solution to get.
5. a kind of potassium feldspar method for concentrating according to claim 1, it is characterised in that: the preparation of the eucalyptus leaf extract
Method are as follows: taking fresh eucalyptus leaves, drying to constant weight at 40-50 DEG C, crushes, and crosses 20-40 mesh, coarse powder is obtained, by coarse powder and water one
3-4h is distilled with being put into distiller, collects oily phase, obtained oil will be collected and freeze 1-2h at -20 DEG C to -15 DEG C, be centrifuged,
Take solids heating and melting to get.
6. a kind of potassium feldspar method for concentrating according to claim 1, it is characterised in that: the preparation side of the tea extract
Method are as follows: after taking tealeaves to grind, the water of 20-30 times of weight is added, is heated to 70-85 DEG C, keeps temperature-resistant extraction 2-3h, it is cold
But, it filters, filtrate is added in the liquor alumini chloridi of the 0.1mol/L of equivalent, pH is adjusted to 5-6, stands to precipitating and generates,
It filters, will be precipitated and dissolved in the hydrochloric acid solution of 0.018mol/L, and 10-20min is extracted with ethyl acetate, collect extract liquor,
Be distilled to recover ethyl acetate, collect remaining solid object to get.
7. a kind of potassium feldspar method for concentrating according to claim 1, it is characterised in that: according to parts by weight, the medicament
Mainly by 11 parts of Flos Sophorae extracts, 20 parts of eucalyptus leaf extracts, 10 parts of tea extracts and 15 parts of N- dodecyl bi-quaternary ammonium salts
It is blended.
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Denomination of invention: A method for cleaning potassium feldspar Effective date of registration: 20211108 Granted publication date: 20210608 Pledgee: Bank of Guilin Co., Ltd. Hezhou branch Pledgor: Hezhou Junxin mineral products Co., Ltd Registration number: Y2021450000045 |