CN104624387A - Floatation and purification method for quartz stone pulverized through heating power - Google Patents
Floatation and purification method for quartz stone pulverized through heating power Download PDFInfo
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- CN104624387A CN104624387A CN201510031805.7A CN201510031805A CN104624387A CN 104624387 A CN104624387 A CN 104624387A CN 201510031805 A CN201510031805 A CN 201510031805A CN 104624387 A CN104624387 A CN 104624387A
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Abstract
The invention belongs to the technical field of mineral processing and particularly relates to a floatation and purification method for a quartz stone pulverized through heating power. According to the method, the quartz stone pulverized through the heating power is made into slurry with the mass concentration of 30-50%, the slurry is placed into floatation equipment, and positive ion collecting agent floatation or negative ion and positive ion mixed collecting agent floatation is carried out to separate tailings containing silicate in a floatation mode, so that concentrate with the SiO2 grade at least being 99.50% is obtained. A positive ion collecting agent or a negative ion and positive ion mixed collecting agent is adopted as an agent for floatation separation, mineral ions with potential and wettability changed can be collected completely, and the rate of removing silicate impurity minerals from the quartz stone can be over 95% by adopting the method.
Description
Technical field
The invention belongs to technical field of mineral processing, be specifically related to the purification by floatation method of the quartz mine that a kind of heating power is pulverized.
Background technology
Quartz is a kind of nonmetal mineral resource of high-quality, and quartz products is high purity quartz particularly, in the last few years, increasingly extensive in the application in the high-tech industry fields such as Aero-Space, fiber optic communication, high-frequency technology, electronic technology and photovoltaic.The quality of quartz is hard, and Mohs' hardness reaches 7, and quartz mine belongs to difficult ore grinding stone.Quartz mine, in mechanical grinding process, not only pulverizes production efficiency low, and needs to consume the larger abrasive media of relatively large hardness; When what is more important quartz mine is directly pulverized, the more impurity relevant with grinding-material can be mixed because it is wear-resisting, bring secondary pollution, affect the purity of product.In order to avoid with alleviate these problems existed in quartzy process, therefore, often in high purity quartz process adopt heating power assisted comminution process.
Heating power assisted comminution is actually heating and quenching mineral, promotes intercrystalline fracture.Utilize high-temperature calcination (often with shrend) that quartz mine structure can be made to become loose frangible, obviously reduce its mechanical strength.The energy needed for later pulverizing processes can be reduced on the one hand; On the other hand, can reduce the abrasion of process equipment, improve the purity of milling product, meanwhile, the microfissure produced in mineral surface during heating power assisted comminution also helps the leaching removal of impurities of quartz.
Quartz and major impurity silicate mineral in quartz mine can be separated by flotation, are the effective ways that common quartz mine is purified.But, when quartz mine adopts heating power to pulverize, although the composition of ore does not change, but the structure of ore can be made to change, thus cause the flotation behavior of the quartz in quartz mine and the silicate such as feldspar, kaolinite impure mineral to change, cause the regime of agent of conventional flotation separation quartz and silicate impurity, process conditions inapplicable.But, the purification by floatation research of quartz mine in the past, the grinding of ore all adopts usual manner to carry out; And it is not yet visible for the research of the heating power assisted comminution method for floating of the common quartz mine containing silicate impurity.Constantly increase at current quartz ware consumption, in natural high purity quartz reserves situation less and less, develop the technology and condition of common quartz mine heating power assisted comminution purification by floatation, there is important theoretical and practical significance.
Summary of the invention
For prior art village problem, the invention provides a kind of purification by floatation method of quartz mine that heating power is pulverized, object is under employing heating power assisted comminution condition, carries out purification by floatation, to obtain the high grade quartz powder-product of lower cost to quartz mine.
The technical scheme realizing the object of the invention is carried out according to following steps:
(1) block quartz mine is put into calcining furnace, calcine 2 ~ 120 minutes at 600 ~ 1200 DEG C, then adopt temperature to carry out shrend lower than the clean water of 80 DEG C to calcining quartz ore deposit, obtain the quartz mine that heating power is pulverized;
(2) quartz mine that heating power is pulverized is continued broken and grinding to granularity < 150 μm, and add water and make the slip that mass concentration is 30 ~ 50%;
(3) slip is put into floatation equipment, carry out cation-collecting agent flotation or Anioncation collector flotation;
Wherein, described cation-collecting agent flotation is under agitation, add pH value to 1 ~ 4 that pH adjusting agent regulates slip, after stirring 2 ~ 3min, add Mixed adjustment agent according to often liter of slip 20 ~ 40mg, cation-collecting agent is added according to often liter of slip 10 ~ 60mg after stirring 2 ~ 3min again, continue stirring 3 ~ 5min, then start FLOTATION SEPARATION, flotation total time is 4 ~ 15min, FLOTATION SEPARATION goes out silicate mine tailing, obtains SiO
2grade is at least the concentrate of 99.50%;
Described Anioncation collector flotation is under agitation, add pH value to 2 ~ 5 that pH adjusting agent regulates slip, calgon adjusting agent is added by often liter of slip 10 ~ 30mg after stirring 2 ~ 3min, Anioncation collector is added according to often liter of slurry 40 ~ 70mg after stirring 2 ~ 3min again, continue stirring 3 ~ 4min, then start FLOTATION SEPARATION, flotation total time is 4 ~ 15min, FLOTATION SEPARATION goes out silicate mine tailing, obtains SiO
2grade is at least the concentrate of 99.50%.
Wherein, described calcining furnace is the one in Muffle furnace, tunnel cave, shaft furnace or rotary kiln.
Described shrend adopts spray or water-bath mode.
Described grinding first adopts jaw crusher, impact breaker, cone crusher or kibbler roll to carry out fragmentation, then adopts rod mill or ball mill to carry out ore grinding.
Described pH adjusting agent is H
2sO
4or HCl.
Described Mixed adjustment agent is that prodan mixes according to mol ratio 1:4 with calgon.
Described cation-collecting agent FLOTATION SEPARATION process comprise roughly select for 1 time with 0 ~ 2 time selected, wherein roughly select time 4 ~ 6min, each selected time is 2 ~ 3min, slip pH value 1 ~ 4 is still kept time selected, add cation-collecting agent 5 ~ 15mg/L slurry before at every turn selected, carry out selected after stirring 2 ~ 3min again; Described concentration times depends on the purity requirement to product, and when carrying out 1 time and being selected, the mine tailing of 1 selected acquisition turns back in the raw material slurry adding adjusting agent, collecting agent, jointly roughly selects; When carrying out 2 times and being selected, the mine tailing roughly selecting obtained concentrate and 2 selected acquisitions join in the flotation device containing adjusting agent and collecting agent simultaneously jointly carry out the 1st time selected.
Described Anioncation collector FLOTATION SEPARATION process comprise roughly select for 1 time with 0 ~ 3 time selected, wherein roughly select time 4 ~ 5min, each selected time 2 ~ 3min, slip pH value 2 ~ 5 is still kept time selected, add Anioncation collector 5 ~ 10mg/L before at every turn selected, carry out selected after stirring 2 ~ 3min again; Described concentration times depends on the purity requirement to product; When carrying out 1 time and being selected, the mine tailing of 1 selected acquisition turns back in the raw material slurry adding adjusting agent, collecting agent, jointly roughly selects; When carrying out 2 times and being selected, the mine tailing roughly selecting obtained concentrate and 2 selected acquisitions join in the flotation device containing adjusting agent and collecting agent simultaneously jointly carry out the 1st time selected; When carrying out 3 times and being selected, the mine tailing of 1 selected obtained concentrate and 3 selected acquisitions join in the flotation device containing adjusting agent and collecting agent simultaneously jointly carry out the 2nd time selected, the 2nd selected obtained concentrate add in the flotation device containing adjusting agent and collecting agent carry out 3 times selected.
Described cation-collecting agent is one or more mixtures according to arbitrary proportion mixing in polyamine compounds, alkyl morpholine, ether amines, amido amine compounds, primary amine compound, tertiary amine, quaternary ammonium salt, carbotriamine, alpha naphthylamine, described polyamine compounds is N-dodecyl-1,3-propane diamine (DN12) or N-cetyl-1, and alkyl morpholine is dodecyl morpholine, ten alkyl morpholines or cetyl morpholine, ether amines is alkyl diamine bacteria ether salt or ether amine acetate etc., and amido amine compounds is N-(2-aminopropyl)-lauramide, N-(2-aminoethyl)-lauramide, N-(2-aminoethyl)-myristamide, N-(2-aminoethyl)-palmitamide or N-(2-aminoethyl)-stearmide, primary amine compound is lauryl amine (DDA), and tertiary amine is N, N-dimethyl lauryl amine (DRN12), N, N-dimethyl tetradecy lamine (DRN14), N, N-dimethyl cetylamine (DRN16) or N, Dymanthine (DRN18), quaternary ammonium salt is octadecyldimethyl joint ammonium chloride, softex kw, DTAC or tetradecyl trimethyl ammonium chloride, carbotriamine is SAG6, SAG8, SAG10 or SAG12, alpha naphthylamine is GE-601, GE-609, CS2, CS1, YS-73 or cetylpyridinium chloride.
Described Anioncation collector is 1.0:(0.8 ~ 12 by anionic collector and cation-collecting agent according to mol ratio) mixing, wherein said cation-collecting agent is one or more mixtures according to arbitrary proportion mixing in polyamine compounds, alkyl morpholine, ether amines, amido amine compounds, primary amine compound, tertiary amine, quaternary ammonium salt, carbotriamine, alpha naphthylamine, described polyamine compounds is N-dodecyl-1,3-propane diamine (DN12) or N-cetyl-1, and alkyl morpholine is dodecyl morpholine, ten alkyl morpholines or cetyl morpholine, ether amines is alkyl diamine bacteria ether salt or ether amine acetate, and amido amine compounds is N-(2-aminopropyl)-lauramide, N-(2-aminoethyl)-lauramide, N-(2-aminoethyl)-myristamide, N-(2-aminoethyl)-palmitamide or N-(2-aminoethyl)-stearmide, primary amine compound is lauryl amine (DDA), and tertiary amine is N, N-dimethyl lauryl amine (DRN12), N, N-dimethyl tetradecy lamine (DRN14), N, N-dimethyl cetylamine (DRN16) or N, Dymanthine (DRN18), quaternary ammonium salt is stearyl dimethyl benzyl ammonium chloride, softex kw, DTAC or tetradecyl trimethyl ammonium chloride, carbotriamine is SAG6, SAG8, SAG10 or SAG12, alpha naphthylamine is GE-601, GE-609, CS2, CS1, YS-73 or cetylpyridinium chloride, described anionic collector is carboxylic acid compound, one or more in sulfonic compound, hydroximic acid, hydroximic acid salt compounds mix according to arbitrary proportion, as oleic acid, pentadecanoic acid, oxidized paraffin wax soap, tall oil, sulfonated kerosene, petroleum sodium sulfonate, dodecyl sodium sulfate, sodium alkyl hydroxamate, Using Salicyl Hydroximic Acid or Vorinostat.
Compared with prior art, feature of the present invention and beneficial effect are:
The method for floating of the quartz mine that heating power of the present invention is pulverized, heating power assisted comminution mode be have employed to the pulverizing of quartz mine, greatly reduce the hardness of ore, the mill efficiency of ore can not only be improved, and the secondary pollution of quartz mine process can be reduced.
Although heating power pulverizes the component not changing quartz mine, but the structure of ore is changed to a certain extent, make the floating characteristics of various mineral in ore, as electric point position and wetability etc. there occurs change, therefore in the application, the regime of agent of FLOTATION SEPARATION adopts cation-collecting agent or Anioncation collector, can the mineral ion that changes of collecting current potential and wetability completely
Adopt the removal rate of method quartz mine mesosilicic acid salt impurity mineral of the present invention can more than 95%; Meanwhile, adopt heating power assisted comminution to make quartz mine inside produce a large amount of microfissures, this be that flotation quartz concentrate leaches purification further and creates very favourable condition.
Accompanying drawing explanation
Fig. 1 is the purification by floatation flow chart of the embodiment of the present invention 1 and embodiment 2;
Fig. 2 is the purification by floatation flow chart of the embodiment of the present invention 3;
Fig. 3 is the purification by floatation flow chart of the embodiment of the present invention 4;
Fig. 4 is the purification by floatation flow chart of the embodiment of the present invention 5.
Detailed description of the invention
Embodiment 1
Certain quartz mine raw ore quartz mass content 98.72%, Al
2o
3mass content 1.08%, in ore, major impurity mineral are the aluminosilicates such as potassic feldspar, carry out flotation by the flotation flowsheet of Fig. 1 and condition.
(1) the block quartz mine of diameter 50 ~ 100mm is put into Muffle furnace, calcine 120 minutes at 600 DEG C, then adopt temperature to carry out spray shrend lower than the clean water of 80 DEG C to calcining quartz ore deposit, obtain the quartz mine of heating power pulverizing;
(2) quartz mine that heating power is pulverized is continued broken and grinding to granularity < 150 μm, and add water and make the slip that mass concentration is 40%;
(3) slip is put into floatation equipment, carry out cation-collecting agent flotation, under agitation, add H
2sO
4regulate the pH value to 2.0 of slip, Mixed adjustment agent is added by often liter of slip 10mg after stirring 2min, described Mixed adjustment agent is that prodan mixes according to mol ratio 1:4 with calgon, cation-collecting agent N-dodecyl-1 is added according to often liter of slip 60mg after stirring 3min again, 3-propane diamine, dodecyl morpholine, N-(2-aminopropyl)-lauramide, lauryl amine, the mixture of stearyl dimethyl benzyl ammonium chloride, continue to stir 4min, then start 1 time and roughly select FLOTATION SEPARATION, flotation time is 5min, FLOTATION SEPARATION goes out silicate mine tailing, obtain quartz concentrate.
Through the quartz concentrate SiO that above-mentioned flow process purification by floatation obtains
2grade 99.33%, concentrate yield 57.60%, silicate mineral clearance reaches 83.10%.
Embodiment 2
Certain quartz mine raw ore quartz mass content 97.73%, Al
2o
3mass content 1.47%, in ore, major impurity mineral are the aluminium silicate mineral such as potassic feldspar, albite and micro-iron-bearing mineral, carry out flotation by the flotation flowsheet of Fig. 1 and condition.
(1) the block quartz mine of diameter 50 ~ 100mm is put into tunnel cave, calcine 100 minutes at 800 DEG C, then adopt temperature to carry out water-bath shrend lower than the clean water of 80 DEG C to calcining quartz ore deposit, obtain the quartz mine that heating power is pulverized;
(2) quartz mine that heating power is pulverized is continued broken and grinding to granularity < 150 μm, and add water and make the slip that mass concentration is 50%;
(3) slip is put into floatation equipment, carry out cation-collecting agent flotation, under agitation, add H
2sO
4regulate the pH value to 4.0 of slip, Mixed adjustment agent is added by often liter of slip 20mg after stirring 3min, described Mixed adjustment agent is that prodan mixes according to mol ratio 1:4 with calgon, cation-collecting agent quaternary ammonium salt softex kw is added according to often liter of slip 30mg after stirring 5min again, SAG6, cetylpyridinium chloride, N-cetyl-1, ten alkyl morpholines, the mixture of alkyl diamine bacteria ether salt, continue to stir 3min, then start 1 time and roughly select FLOTATION SEPARATION, flotation time is 6min, FLOTATION SEPARATION goes out silicate mine tailing, obtain quartz concentrate.
Through the quartz concentrate SiO that above-mentioned flow process purification by floatation obtains
2grade 99.27%, concentrate yield 46.6%, silicate mineral clearance reaches 81.19%.
Embodiment 3
Certain quartz mine raw ore quartz mass content 96.74%, Al
2o
3mass content 1.73%, in ore, major impurity mineral are the aluminium silicate mineral such as potassic feldspar, albite and micro-iron-bearing mineral, carry out flotation by the flotation flowsheet of Fig. 2 and condition.
(1) the block quartz mine of diameter 50 ~ 120mm is put into shaft furnace, calcine 30 minutes at 1000 DEG C, then adopt temperature to carry out water-bath shrend lower than the clean water of 80 DEG C to calcining quartz ore deposit, obtain the quartz mine that heating power is pulverized;
(2) quartz mine that heating power is pulverized is continued broken and grinding to granularity < 150 μm, and add water and make the slip that mass concentration is 30%;
(3) slip is put into floatation equipment, carry out anionic and cationic collectors flotation, under agitation, add H
2sO
4regulate the pH value to 2 of slip, adjusting agent calgon is added by often liter of slip 10mg after stirring 2min, add the mixture of Anioncation collector oleic acid and cetyl morpholine according to often liter of slip 40mg after stirring 2min again, the mol ratio of oleic acid and cetyl morpholine is 1:12, continue to stir 4min, then start 1 time and roughly select FLOTATION SEPARATION, flotation time is 5min, FLOTATION SEPARATION goes out silicate mine tailing, obtains quartz concentrate.
Through the quartz concentrate SiO that above-mentioned flow process purification by floatation obtains
2grade 99.47%, concentrate yield 56.6%, silicate mineral clearance reaches 87.24%.
Embodiment 4
Certain quartz mine raw ore quartz mass content 97.45%, Al
2o
3mass content 1.87%, K
2o mass content is 0.3%, Na
2o mass content is 0.01%, Fe
2o
3content is 0.115%, and in ore, major impurity mineral are feldspar, muscovite, limonite and micro-clay mineral, carries out flotation by the flotation flowsheet of Fig. 3 and condition.
(1) the block quartz mine of diameter 60 ~ 100mm is put into rotary kiln, calcine 2 minutes at 1200 DEG C, then adopt temperature to carry out spray shrend lower than the clean water of 80 DEG C to calcining quartz ore deposit, obtain the quartz mine of heating power pulverizing;
(2) quartz mine that heating power is pulverized is continued broken and grinding to granularity < 100 μm, and add water and make the slip that mass concentration is 40%;
(3) slip is put into floatation equipment, carry out cation-collecting agent flotation, under agitation, add the pH value to 1.0 that HCl regulates slip, Mixed adjustment agent is added by often liter of slip 40mg after stirring 2min, described Mixed adjustment agent is that prodan mixes according to mol ratio 1:4 with calgon, cation-collecting agent N-(2-aminoethyl)-lauramide is added according to often liter of slip 10mg after stirring 2min again, continue to stir 5min, then start 1 time and roughly select FLOTATION SEPARATION, roughly selecting flotation time is 4min, then carry out 1 time selected, 1 selected maintenance slip pH 1.0, select in flotation device and add adjusting agent calgon 5mg/L, after stirring 2min, add cation hybrid collector N-(2-aminoethyl)-lauramide, addition is often liter of slip 10mg collecting agent, selected 3min after stirring 3min, 1 selected acquisition quartz concentrate, the mine tailing obtained turns back to and adds adjusting agent, in the raw material slurry of collecting agent, jointly roughly select.
Through the quartz concentrate SiO that above-mentioned flow process purification by floatation obtains
2grade 99.69%, concentrate yield 67.7%, silicate mineral clearance reaches 92.32%.
Embodiment 5
Certain quartz mine raw ore quartz mass content 97.45%, Al
2o
3mass content 1.87%, K
2o mass content is 0.3%, Na
2o mass content is 0.01%, Fe
2o
3content is 0.115%, and in ore, major impurity mineral are feldspar, muscovite, limonite and micro-clay mineral, carries out flotation by the flotation flowsheet of Fig. 4 and condition.
(1) the block quartz mine of diameter 60 ~ 100mm is put into Muffle furnace, calcine 10 minutes at 1200 DEG C, then adopt temperature to carry out spray shrend lower than the clean water of 80 DEG C to calcining quartz ore deposit, obtain the quartz mine of heating power pulverizing;
(2) quartz mine that heating power is pulverized is continued broken and grinding to granularity < 100 μm, and add water and make the slip that mass concentration is 40%;
(3) slip is put into floatation equipment, carry out cation-collecting agent flotation, under agitation, add H
2sO
4regulate the pH value to 3 of slip, adjusting agent calgon is added by often liter of slip 30mg after stirring 2min, Anioncation collector pentadecanoic acid is added according to often liter of slip 50mg after stirring 2min again, the mixture of oxidized paraffin wax soap and ether amine acetate, the total amount of pentadecanoic acid and oxidized paraffin wax soap and the mol ratio of ether amine acetate are 1:0.8, continue to stir 3min, then start 1 time and roughly select FLOTATION SEPARATION, roughly selecting flotation time is 5min, then carry out 1 time selected, 1 selected maintenance slip pH 3, calgon adjusting agent 5mg/L is added in flotation device, after stirring 2min, select in flotation device and add Anioncation collector pentadecanoic acid, the mixture of oxidized paraffin wax soap and ether amine acetate, addition is often liter of slip 10mg Anioncation collector, selected 3min after stirring 3min, the mine tailing of 1 selected acquisition turns back to and adds adjusting agent, in the raw material slurry of collecting agent, jointly roughly select, obtain concentrate carry out again 2 times selected, 2 selected maintenance slip pH 3, calgon adjusting agent 5mg/L is added in flotation device, after stirring 2min, select in flotation device and add Anioncation collector pentadecanoic acid, the mixture of oxidized paraffin wax soap and ether amine acetate, addition is often liter of slip 10mg collecting agent, selected 3min after stirring 3min, the mine tailing roughly selecting obtained concentrate and 2 selected acquisitions join in the flotation device containing adjusting agent and collecting agent simultaneously jointly carry out the 1st time selected, 2 selected acquisition quartz concentrate SiO
2grade 99.80%, concentrate yield 61.85%, silicate mineral clearance reaches 96.72%.
Embodiment 6
Certain quartz mine raw ore quartz mass content 96.34%, Al
2o
3mass content 1.927%, K
2o mass content is 0.31%, Na
2o mass content is 0.008%, Fe
2o
3content is 0.113%, and in ore, major impurity mineral are feldspar, muscovite, limonite and micro-clay mineral.
(1) the block quartz mine of diameter 60 ~ 100mm is put into Muffle furnace, calcine 10 minutes at 1200 DEG C, then adopt temperature to carry out spray shrend lower than the clean water of 80 DEG C to calcining quartz ore deposit, obtain the quartz mine of heating power pulverizing;
(2) quartz mine that heating power is pulverized is continued broken and grinding to granularity < 100 μm, and add water and make the slip that mass concentration is 40%;
(3) slip is put into floatation equipment, carry out cation-collecting agent flotation, under agitation, add the pH value to 5 that HCl regulates slip, adjusting agent calgon is added by often liter of slip 20mg after stirring 2min, Anioncation collector dodecyl sodium sulfate and N is added according to often liter of slip 70mg after stirring 2min again, the mixture of N-dimethyl lauryl amine, dodecyl sodium sulfate and N, the mol ratio of N-dimethyl lauryl amine is 1:9, continue to stir 4min, then start 1 time and roughly select FLOTATION SEPARATION, roughly selecting flotation time is 4min, then carry out 1 time selected, 1 selected maintenance slip pH 5, calgon adjusting agent 5mg/L is added in flotation device, after stirring 2min, select in flotation device and add Anioncation collector dodecyl sodium sulfate and N, the mixture of N-dimethyl lauryl amine, addition is often liter of slip 8mg Anioncation collector, selected 2min after stirring 2min, the mine tailing of 1 selected acquisition turns back to and adds adjusting agent, in the raw material slurry of collecting agent, jointly roughly select, obtain concentrate carry out again 2 times selected, 2 selected maintenance slip pH 5, calgon adjusting agent 5mg/L is added in flotation device, after stirring 2min, select in flotation device and add Anioncation collector dodecyl sodium sulfate and N, the mixture of N-dimethyl lauryl amine, addition is often liter of slip 10mg collecting agent, selected 2min after stirring 2min, the mine tailing roughly selecting obtained concentrate and 2 selected acquisitions join in the flotation device containing adjusting agent and collecting agent simultaneously jointly carry out the 1st time selected, carry out again 3 times selected, 3 selected maintenance slip pH 5, calgon adjusting agent 5mg/L is added in flotation device, after stirring 2min, select in flotation device and add Anioncation collector dodecyl sodium sulfate and N, the mixture of N-dimethyl lauryl amine, addition is often liter of slip 10mg collecting agent, selected 2min after stirring 2min, the mine tailing of 1 selected obtained concentrate and 3 selected acquisitions join in the flotation device containing adjusting agent and collecting agent simultaneously jointly carry out the 2nd time selected, 2nd selected obtained concentrate add in the flotation device containing adjusting agent and collecting agent carry out 3 times selected, 3 selected acquisition quartz concentrate SiO
2grade 99.89%, concentrate yield 61.56%, silicate mineral clearance reaches 97.03%.
Claims (10)
1. a purification by floatation method for the quartz mine of heating power pulverizing, is characterized in that carrying out according to following steps:
(1) block quartz mine is put into calcining furnace, calcine 2 ~ 120 minutes at 600 ~ 1200 DEG C, then adopt temperature to carry out shrend lower than the clean water of 80 DEG C to calcining quartz ore deposit, obtain the quartz mine that heating power is pulverized;
(2) quartz mine that heating power is pulverized is continued broken and grinding to granularity < 150 μm, and add water and make the slip that mass concentration is 30 ~ 50%;
(3) slip is put into floatation equipment, carry out cation-collecting agent flotation or Anioncation collector flotation;
Wherein, described cation-collecting agent flotation is under agitation, add pH value to 1 ~ 4 that pH adjusting agent regulates slip, after stirring 2 ~ 3min, add Mixed adjustment agent according to often liter of slip 20 ~ 40mg, cation-collecting agent is added according to often liter of slip 10 ~ 60mg after stirring 2 ~ 3min again, continue stirring 3 ~ 5min, then start FLOTATION SEPARATION, flotation total time is 4 ~ 15min, FLOTATION SEPARATION goes out silicate mine tailing, obtains SiO
2grade is at least the concentrate of 99.50%;
Described Anioncation collector flotation is under agitation, add pH value to 2 ~ 5 that pH adjusting agent regulates slip, calgon adjusting agent is added by often liter of slip 10 ~ 30mg after stirring 2 ~ 3min, Anioncation collector is added according to often liter of slurry 40 ~ 70mg after stirring 2 ~ 3min again, continue stirring 3 ~ 4min, then start FLOTATION SEPARATION, flotation total time is 4 ~ 15min, FLOTATION SEPARATION goes out silicate mine tailing, obtains SiO
2grade is at least the concentrate of 99.50%.
2. the purification by floatation method of the quartz mine of a kind of heating power pulverizing according to claim 1, is characterized in that described calcining furnace is the one in Muffle furnace, tunnel cave, shaft furnace or rotary kiln.
3. the purification by floatation method of the quartz mine of a kind of heating power pulverizing according to claim 1, is characterized in that described shrend adopts spray or water-bath mode.
4. the purification by floatation method of the quartz mine of a kind of heating power pulverizing according to claim 1, it is characterized in that described grinding first adopts jaw crusher, impact breaker, cone crusher or kibbler roll to carry out fragmentation, then adopt rod mill or ball mill to carry out ore grinding.
5. the purification by floatation method of the quartz mine of a kind of heating power pulverizing according to claim 1, is characterized in that described pH adjusting agent is H
2sO
4or HCl.
6. the purification by floatation method of the quartz mine of a kind of heating power pulverizing according to claim 1, is characterized in that described Mixed adjustment agent is that prodan mixes according to mol ratio 1:4 with calgon.
7. the purification by floatation method of the quartz mine of a kind of heating power pulverizing according to claim 1, it is characterized in that described cation-collecting agent FLOTATION SEPARATION process comprise roughly select for 1 time with 0 ~ 2 time selected, wherein roughly select time 4 ~ 6min, each selected time is 2 ~ 3min, slip pH value 1 ~ 4 is still kept time selected, add cation-collecting agent 5 ~ 15mg/L slurry before at every turn selected, carry out selected after stirring 2 ~ 3min again; Described concentration times depends on the purity requirement to product, and when carrying out 1 time and being selected, the mine tailing of 1 selected acquisition turns back in the raw material slurry adding adjusting agent, collecting agent, jointly roughly selects; When carrying out 2 times and being selected, the mine tailing roughly selecting obtained concentrate and 2 selected acquisitions join in the flotation device containing adjusting agent and collecting agent simultaneously jointly carry out the 1st time selected.
8. the purification by floatation method of the quartz mine of a kind of heating power pulverizing according to claim 1, it is characterized in that described Anioncation collector FLOTATION SEPARATION process comprise roughly select for 1 time with 0 ~ 3 time selected, wherein roughly select time 4 ~ 5min, each selected time 2 ~ 3min, slip pH value 2 ~ 5 is still kept time selected, add Anioncation collector 5 ~ 10mg/L before at every turn selected, carry out selected after stirring 2 ~ 3min again; Described concentration times depends on the purity requirement to product; When carrying out 1 time and being selected, the mine tailing of 1 selected acquisition turns back in the raw material slurry adding adjusting agent, collecting agent, jointly roughly selects; When carrying out 2 times and being selected, the mine tailing roughly selecting obtained concentrate and 2 selected acquisitions join in the flotation device containing adjusting agent and collecting agent simultaneously jointly carry out the 1st time selected; When carrying out 3 times and being selected, the mine tailing of 1 selected obtained concentrate and 3 selected acquisitions join in the flotation device containing adjusting agent and collecting agent simultaneously jointly carry out the 2nd time selected, the 2nd selected obtained concentrate add in the flotation device containing adjusting agent and collecting agent carry out 3 times selected.
9. the purification by floatation method of the quartz mine of a kind of heating power pulverizing according to claim 1, is characterized in that described cation-collecting agent is one or more mixtures according to arbitrary proportion mixing in polyamine compounds, alkyl morpholine, ether amines, amido amine compounds, primary amine compound, tertiary amine, quaternary ammonium salt, carbotriamine, alpha naphthylamine, described polyamine compounds is N-dodecyl-1,3-propane diamine (DN12) or N-cetyl-1, and alkyl morpholine is dodecyl morpholine, ten alkyl morpholines or cetyl morpholine, ether amines is alkyl diamine bacteria ether salt or ether amine acetate etc., and amido amine compounds is N-(2-aminopropyl)-lauramide, N-(2-aminoethyl)-lauramide, N-(2-aminoethyl)-myristamide, N-(2-aminoethyl)-palmitamide or N-(2-aminoethyl)-stearmide, primary amine compound is lauryl amine (DDA), and tertiary amine is N, N-dimethyl lauryl amine (DRN12), N, N-dimethyl tetradecy lamine (DRN14), N, N-dimethyl cetylamine (DRN16) or N, Dymanthine (DRN18), quaternary ammonium salt is octadecyldimethyl joint ammonium chloride, softex kw, DTAC or tetradecyl trimethyl ammonium chloride, carbotriamine is SAG6, SAG8, SAG10 or SAG12, alpha naphthylamine is GE-601, GE-609, CS2, CS1, YS-73 or cetylpyridinium chloride.
10. the purification by floatation method of the quartz mine of a kind of heating power pulverizing according to claim 1, it is characterized in that described Anioncation collector is is 1.0:(0.8 ~ 12 by anionic collector and cation-collecting agent according to mol ratio) mixing, wherein said cation-collecting agent is one or more mixtures according to arbitrary proportion mixing in polyamine compounds, alkyl morpholine, ether amines, amido amine compounds, primary amine compound, tertiary amine, quaternary ammonium salt, carbotriamine, alpha naphthylamine, described polyamine compounds is N-dodecyl-1,3-propane diamine (DN12) or N-cetyl-1, and alkyl morpholine is dodecyl morpholine, ten alkyl morpholines or cetyl morpholine, ether amines is alkyl diamine bacteria ether salt or ether amine acetate, and amido amine compounds is N-(2-aminopropyl)-lauramide, N-(2-aminoethyl)-lauramide, N-(2-aminoethyl)-myristamide, N-(2-aminoethyl)-palmitamide or N-(2-aminoethyl)-stearmide, primary amine compound is lauryl amine (DDA), and tertiary amine is N, N-dimethyl lauryl amine (DRN12), N, N-dimethyl tetradecy lamine (DRN14), N, N-dimethyl cetylamine (DRN16) or N, Dymanthine (DRN18), quaternary ammonium salt is stearyl dimethyl benzyl ammonium chloride, softex kw, DTAC or tetradecyl trimethyl ammonium chloride, carbotriamine is SAG6, SAG8, SAG10 or SAG12, alpha naphthylamine is GE-601, GE-609, CS2, CS1, YS-73 or cetylpyridinium chloride, described anionic collector is carboxylic acid compound, one or more in sulfonic compound, hydroximic acid, hydroximic acid salt compounds mix according to arbitrary proportion, as oleic acid, pentadecanoic acid, oxidized paraffin wax soap, tall oil, sulfonated kerosene, petroleum sodium sulfonate, dodecyl sodium sulfate, sodium alkyl hydroxamate, Using Salicyl Hydroximic Acid or Vorinostat.
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