CN102600982B - Fluoride-free low-acid zwitterion quartz sand reverse flotation process - Google Patents
Fluoride-free low-acid zwitterion quartz sand reverse flotation process Download PDFInfo
- Publication number
- CN102600982B CN102600982B CN 201210081288 CN201210081288A CN102600982B CN 102600982 B CN102600982 B CN 102600982B CN 201210081288 CN201210081288 CN 201210081288 CN 201210081288 A CN201210081288 A CN 201210081288A CN 102600982 B CN102600982 B CN 102600982B
- Authority
- CN
- China
- Prior art keywords
- quartz sand
- flotation
- zwitterion
- quartz
- collecting agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The invention relates to fluoride-free low-acid zwitterion quartz sand reverse flotation process, which is characterized by comprising following steps: (1) pretreatment; (2) flotation: adjusting the pH (potential of hydrogen) value of ore pulp to 4-5 by sulfuric acid, performing air agitation, adding 40g/t-80g/t of positive ion collecting agent and 60g/t-75g/t of foaming agent, stirring and removing foams in primary flotation; and adjusting the pH value of the ore pulp to 9-10 by 200g/t-300g/t of sodium carbonate, performing air agitation, adding 80g/t-150g/t of negative ion collecting agent, then adding 60g/t-75g/t of foaming agent, stirring and removing foams in secondary floatation; and (3) washing ores in a flotation tank by water until the ores are neutral, and drying the ores to obtain quartz sand concentrates. The flotation collecting agents are fine in selectivity, the process is simple, cost is low, the purity of the quartz sand is high, the content of iron and aluminum impurities is low, and the problem that traditional fluoride and high-acid process damages equipment and environments is avoided in a flotation process.
Description
Technical field
The invention belongs to the nonmetallic mineral manufacture field, particularly the low sour zwitterion reverse flotation quartz sand technique of a kind of free-floride, contain elemental iron aluminum metal impure mineral in reduction quartz sand, prepares the method for purity quartzite.
Background technology
Along with the solid demand of global strategy low-carbon energy-saving technology, the new forms of energy take solar energy as representative, the research and development of new material in the urgent need to high purity quartz as basic material.high purity quartz is a kind of purposes functional material very widely, the solar energy crystal silicon battery, silica crucible, surface-mounted integrated circuit, electronic package material, optical fiber, liquid crystal display, laser, silicon ingot, silicon rod, silicon chip, monocrystalline silicon, polysilicon, Aero-Space (screen window, rocket shower nozzle etc.), defence and military (guided missile head, laser weapon, high altitude reconnaissance plane optical glass etc.), nuclear power energy storage glass (radiation proof), high temp glass, high-purity and even the ultra-pure quartz of the high-tech sector extensive uses such as chemical industry is as irreplaceable key function material.Yet high purity quartz not only is limited by quartzy ore dressing deep process technology, and also closely related with the difference of quartz mineral mineral crystal structure.
Quartz sand is a kind of silicate mineral of hard, wear-resisting, stable chemical performance, and its essential mineral composition is SiO
2Range of application is very wide, can be used for generally that frit, ceramic auxiliary material, metallurgy additive, electrical apparatus insulation filler, abrasive media, coating additive, building mortar, concrete close that material, machine casting, Treatment of Metal Surface, profit filter, the fields such as oil well pressurization and medical treatment.Glass sand is the indispensable raw material of the high-tech industries such as electronics core devices, optical communications material, solar energy crystal silicon battery, optical glass, high temp glass, laser, military project especially.
Natural siliceous sand contains some other impure minerals, and the impure mineral that wherein contains ferro element has: goethite, bloodstone, limonite, ilmenite, magnetic iron ore, tourmaline, hornblend, biotite etc.These ferrous contaminants or be embedded in quartz particles, or invest quartz surfaces.Industrial quality and the use value of quartz sand have been affected due to the existence of the metallic impurity elements such as these iron content aluminium.For example in glass production, to glass found macroscopic property in process and light transmission and the outward appearance of glass finished-product all produces material impact.Therefore, improve the grade of quartz sand, the content that reduces the metallic impurity elements such as iron, aluminium just seems extremely important.In the quartz sand industrial production, traditional production technology is with the fragmentation of vein quartz rock, washing desliming, ore grinding, classification, magnetic separation, flotation, roasting, shrend, selected one-tenth glass sand.Particularly normal employing of flotation has fluorine strong acid technique, and fluorine ion and strong acid not only produce corrosion to equipment, and industrial wastewater is to the pollution of environment with administer the problem of all bringing.Therefore, to the abundant vein quartz resource of reserves, study a kind of free-floride and hang down sour zwitterion reverse flotation to prepare the new technology meaning of high purity quartz very great.
Conventional quartz sand flotation generally has hydrofluoric acid method and sulfuric acid process.Activator and pH adjusting agent used in the hydrofluoric acid method are hydrofluoric acid, although selectively good, the fluoride treatment in later stage and secondary pollution problem are difficult to resolve certainly; Sulfuric acid process floatation process great advantage is to have avoided using the fluorine ion that environment is had destructive effects, and production target is stable, but strong acid also can not be ignored preparation equipment and corrosiveness, and floatation equipment is had higher requirements.Free-floride is under natural pH value without acid system, carry out flotation by the zwitterion collecting agent, realized green production, but owing to just reaching the purpose of separating mineral strict control in pretreated situation, if it is bad that pretreatment is controlled, floatation indicators fluctuation is very large, and the problem such as the sorting that existing floride-free anacidity floatation exists is bad, dosing is large, production cost is high.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned the deficiencies in the prior art, provides a kind of technique simple, and dosing is few, production cost is low, eco-friendly free-floride is hanged down sour zwitterion reverse flotation quartz sand technique, can remove the metal impurities mineral of iron content, aluminium, the preparation high purity quartz.
For solving technical problem proposed by the invention, the technical solution used in the present invention is:
A kind of free-floride is hanged down sour zwitterion reverse flotation quartz sand technique, it is characterized in that, it comprises the following steps: (1) pretreatment: quartz sand is carried out ore grinding and screening, be prepared into 60～140 order quartz sands, then clean and magnetic separation, oven dry; (2) flotation: it is 20～24wt% that water is adjusted to pulp density with pretreated quartz sand, adopt two sections pretreated quartz sands of reverse floatation process flotation of zwitterion, in one section flotation, with the sulfuric acid of 100g/t～200g/t, slurry pH is adjusted to 4～5 and Aerated stirring, add 40g/t～80g/t cation-collecting agent and Aerated stirring (representing to add in pretreated quartz sand per ton 40g～80g cation-collecting agent), the foaming agent that adds again 60g/t～75g/t stirs and scrapes bubble; In bis flotation, it is 9～10 Aerated stirrings also that the ore pulp with the sodium carbonate of 200g/t～300g/t after with one section flotation is regulated pH value, adds 80g/t～150g/t anion collecting agent and Aerated stirring, then adds the foaming agent of 60g/t～75g/t, stirs and scrape bubble; (3) water cleans the interior mineral of flotation cell to neutral, and the suction filtration oven dry obtains the quartz sand concentrate.
Press such scheme, described quartz sand is the rough machined quartz sand of vein quartz rock, and wherein the content of silica is more than or equal to 95.0wt%, the content of metallic impurity elements iron less than the content of 100 μ g/g, impurity element aluminium less than 50 μ g/g.
Press such scheme, described cation-collecting agent is the trimethylene diamines, the trimethylene diamines is N-dodecyl-1,3-trimethylene diamines (being dodecyl trimethylene diamines) or N-myristyl-1,3-trimethylene diamines (being myristyl trimethylene diamines) or N-octadecyl-1, a kind of in 3-trimethylene diamines (being octadecyl trimethylene diamines).
Press such scheme, described anion collecting agent is combined capturing and collecting agent, is that petroleum sodium sulfonate and the octyl group hydroximic acid of 4: 1 forms by mass ratio.
Press such scheme, described foaming agent is terpenic oil.
Press such scheme, the operating process of described ore grinding is: according to the mass ratio 1 of quartz sand and ball-milling medium: (2-5), add quartz sand material and ball-milling medium in each rotating cylinder of planetary ball mill, rotating speed is 1380r/mim, ore grinding time 4s～10s, grinding process is for dry grinding, in order to the dissociating impurities mineral.
Press such scheme, high frequency vibration screen is adopted in described screening, double deck screen, and screen size is 60 orders, 140 orders, the method for screening is wet screening.
Press such scheme, described scouring is that water is cleaned quartz sand pan feeding concentration adjustment to 40～60wt%, cleans time 3min～6min, friction and cleaned quartz surface.
Press such scheme, described magnetic separation is high-gradient magnetic separation, and magnetic field intensity is 0.6～0.9T, and flow velocity is 0.6～1.0m/s.
Press such scheme, described water is deionized water.
Press such scheme, described oven dry is electrical heating infra-red radiation oven dry under the condition of 80 ℃～105 ℃ of temperature.
Compare with traditional floatation process, the invention has the beneficial effects as follows: first, in flotation of the present invention, quartz sand raw material used is the higher quartz sand of purity that the vein quartz rock is prepared into through operations such as pick, fragmentation, ore grinding, classification, deironing, mainly consider the metal impurities mineral except iron content, aluminium when formulating flotation process, the dosage of collecting agent used is little, ordinary temperature production and production cost are low, and process treatment process is simple, and quartz sand purity is high, iron, aluminium content are low; Second, utilize collecting property difference and the interaction mechanism of zwitterion, adopted anion collecting agent octyl group hydroximic acid and petroleum sodium sulfonate as the combined capturing and collecting agent technology, and be aided with two sections zwitterion inverse flotation methods that cation-collecting agent trimethylene diamines is supplementary catching agent, realize the purpose of selective collecting; The 3rd, ore pulp acidity is faintly acid, and a small amount of sulfuric acid alleviates the corrosion to preparation equipment; The 4th, do not introduce the F ion in floatation process, avoided having fluorine strong acid flotation waste water to process the environmental issue of bringing, production environment is friendly.Therefore, the present invention realizes environmental benefit, Social benefit and economic benefit three unification, is a kind of resources conservation, environmentally friendly new technology.
The specific embodiment
In order to understand better the present invention, the specific embodiment of the invention is described in detail, but is not limited to the listed specific embodiment.
In following embodiment, foaming agent terpenic oil, cation-collecting agent trimethylene diamines, anion collecting agent petroleum sodium sulfonate and octyl group hydroximic acid are commercially available technical grade commodity.
Adopting the rough machined quartz sand of vein quartz rock in following embodiment is raw material, and wherein the content of silica is more than or equal to 95.0wt%, and major impurity is bloodstone, feldspar and mica, and the content of impurity elements of ferrum, aluminium is respectively less than 100 μ g/g, 50 μ g/g; High frequency vibration screen is adopted in described screening, double deck screen, and screen size is 60 orders, 140 orders, the method for screening is wet screening; Described magnetic plant is slon-100 periodic pulsating high gradient magnetic separator; Drying plant is SC101-Y type far infrared air-blowing drying box; Adopt Optima 4300DV entirely to compose direct-reading inductively coupled plasma emission spectrometer the quartz sand chemical element content is carried out quantitative analysis.
Embodiment 1:
Take the rough machined quartz sand of vein quartz rock as raw material, crush and screen and be prepared into 60～140 order quartz sands, water is that 0.9T, flow velocity are that under the 1.0m/s condition, iron removal by magnetic separation carries out pretreatment in magnetic field intensity after quartz sand pan feeding concentration adjustment is cleaned 6min to 60wt%; Adopt the pretreated quartz sand of two sections zwitterion reverse floatation process flotation, with clear water, pretreated quartz sand ore pulp concentration adjustment is arrived 24wt%, in one section flotation, with the adjusting agent sulfuric acid of 200g/t, ore pulp being adjusted to the pH value is adjusted to and equals 5 and Aerated stirring 3min, add 80g/t cation-collecting agent dodecyl trimethylene diamines Aerated stirring 3min, add again the foaming agent terpenic oil of 75g/t to stir 3min, scrape bubble 4min; In bis flotation, slurry pH with the adjusting agent sodium carbonate of 300g/t after with one section flotation is adjusted to 9 and Aerated stirring 3min, add 150g/t anion collecting agent, be petroleum sodium sulfonate: octyl group hydroximic acid mass ratio is the combined capturing and collecting agent of 4: 1, and Aerated stirring 3min, add again the foaming agent terpenic oil of 75g/t to stir 3min, scrape bubble 4min; In the washed with de-ionized water flotation cell, mineral are to neutral, and suction filtration, the oven dry of electrical heating infra-red radiation obtain SiO
2Content 99.01%, impurity metallic elements total amount are the quartz sand concentrate of 99.01 μ g/g, and wherein element of Fe and A1 are respectively 14.85 μ g/g and 28.67 μ g/g.With compare metallic element total impurities 215.07 μ g/g in quartz sand before flotation, the impurity metallic elements total amount rate of removing is 53.15%, the rate of removing of element of Fe and Al is respectively 84.15% and 37.50%.
Embodiment 2:
Take the rough machined quartz sand of vein quartz rock as raw material, crush and screen and be prepared into 60～140 order quartz sands, water is that 0.9T, flow velocity are that under the 1.0m/s condition, iron removal by magnetic separation carries out pretreatment in magnetic field intensity after quartz sand pan feeding concentration adjustment is cleaned 6min to 60wt%; Adopt the pretreated quartz sand of two sections zwitterion reverse floatation process flotation, with clear water, pretreated quartz sand ore pulp concentration adjustment is arrived and be 24wt%, in one section flotation, with the sulfuric acid of 100g/t, slurry pH is adjusted to 5 and Aerated stirring 5min, add 40g/t cation-collecting agent trimethylene diamines Aerated stirring 5min, add again the foaming agent terpenic oil of 60g/t to stir 5min, scrape bubble 5min; In bis flotation, slurry pH with the adjusting agent sodium carbonate of 200g/t after with one section flotation is adjusted to 9 and Aerated stirring 5min, add 80g/t anion collecting agent, be petroleum sodium sulfonate: octyl group hydroximic acid mass ratio is the combined capturing and collecting agent of 4: 1, and Aerated stirring 5min, add again the foaming agent terpenic oil of 60g/t to stir 5min, scrape bubble 5min; In the washed with de-ionized water flotation cell, mineral are to neutral, and suction filtration, the oven dry of electrical heating infra-red radiation obtain the quartz sand concentrate.The metallic element content of impurities of gained quartz sand concentrate is respectively 154.19 μ g/g, and wherein element of Fe content is 33.96 μ g/g, and element al is 35.80 μ g/g.Compare with selected former state, the metallic element content of impurities rate of removing is 39.86%; The rate of removing of element of Fe is 63.75%; The rate of removing of element al is 21.95%.
Embodiment 3:
Take the rough machined quartz sand of vein quartz rock as raw material, crush and screen and be prepared into the quartzy Grains of 60～140 orders, water is that 0.9T, flow velocity are that under the 1.0m/s condition, iron removal by magnetic separation carries out pretreatment in magnetic field intensity after quartz sand pan feeding concentration adjustment is cleaned 6min to 60wt%; Adopt the pretreated quartz sand of two sections zwitterion reverse floatation process flotation, with clear water, pretreated quartz sand ore pulp concentration adjustment is arrived 24wt%, in one section flotation, with the adjusting agent sulfuric acid of 200g/t, slurry pH is adjusted to 5 and Aerated stirring 5min, add 40g/t cation-collecting agent dodecyl trimethylene diamines Aerated stirring 5min, add again the foaming agent terpenic oil of 60g/t to stir 5min, scrape bubble 5min; In bis flotation, slurry pH with the adjusting agent sodium carbonate of 300g/t after with one section flotation is adjusted to 10 and Aerated stirring 5min, add 100g/t anion collecting agent, be petroleum sodium sulfonate: octyl group hydroximic acid mass ratio is the combined capturing and collecting agent of 4: 1, and Aerated stirring 5min, add again the terpenic oil of 60g/t to stir 5min, scrape bubble 5min; In the washed with de-ionized water flotation cell, mineral are to neutral, and suction filtration, the oven dry of electrical heating infra-red radiation obtain the quartz sand concentrate.The metallic element content of impurities of gained quartz sand concentrate is respectively 142.66 μ g/g, and wherein element of Fe content is 23.99 μ g/g, and element al is 38.88 μ g/g.Compare with selected former state, the metallic element content of impurities rate of removing is 33.67%; The rate of removing of element of Fe is 74.39%; The rate of removing of element al is 15.24%.
Embodiment 4:
Take the rough machined quartz sand of vein quartz rock as raw material, crush and screen and be prepared into 60～140 order quartz sands, water is that 0.9T, flow velocity are that under the 1.0m/s condition, iron removal by magnetic separation carries out pretreatment in magnetic field intensity after quartz sand pan feeding concentration adjustment is cleaned 6min to 60wt%; Adopt the pretreated quartz sand of two sections zwitterion reverse floatation process flotation, with clear water, pretreated quartz sand ore pulp concentration adjustment is arrived 24wt%, in one section flotation, with the adjusting agent sulfuric acid of 200g/t, slurry pH is adjusted to 4 and Aerated stirring 3min, add 60g/t cation-collecting agent dodecyl trimethylene diamines to stir 3min, add again the foaming agent terpenic oil of 75g/t to stir 3min, scrape bubble 4min; In bis flotation, slurry pH with the adjusting agent sodium carbonate of 300g/t after with one section flotation is adjusted to 9 and Aerated stirring 3min, add 100g/t anion collecting agent, be petroleum sodium sulfonate: octyl group hydroximic acid mass ratio is the combined capturing and collecting agent of 4: 1, and Aerated stirring 3min, add again the terpenic oil of 75g/t to stir 3min, scrape bubble 4min; In the washed with de-ionized water flotation cell, mineral are to neutral, and suction filtration, the oven dry of electrical heating infra-red radiation obtain the quartz sand concentrate.In gained quartz sand concentrate, the metallic element content of impurities is respectively 129.35 μ g/g, and wherein element of Fe content is 19.19 μ g/g, and element al is 36.62 μ g/g.Compare with selected former state, the metallic element content of impurities rate of removing is 28.31%; The rate of removing of element of Fe is 79.42%; The rate of removing of element al is 20.17%.
Embodiment 5:
Take the rough machined quartz sand of vein quartz rock as raw material, crush and screen and be prepared into 60～140 order quartz sands, water is that 0.9T, flow velocity are that under the 1.0m/s condition, iron removal by magnetic separation carries out pretreatment in magnetic field intensity after quartz sand pan feeding concentration adjustment is cleaned 6min to 60wt%; Adopt the pretreated quartz sand of two sections zwitterion reverse floatation process flotation, with clear water, pretreated quartz sand ore pulp concentration adjustment is arrived 24wt%, in one section flotation, with the adjusting agent sulfuric acid of 200g/t, slurry pH is adjusted to 5 and Aerated stirring 3min, add 80g/t cation-collecting agent dodecyl trimethylene diamines Aerated stirring 3min, add again the foaming agent terpenic oil of 75g/t to stir 3min, scrape bubble 4min; In bis flotation, slurry pH with the adjusting agent sodium carbonate of 300g/t after with one section flotation is adjusted to 9 and Aerated stirring 3min, add 120g/t anion collecting agent, be petroleum sodium sulfonate: octyl group hydroximic acid mass ratio is the combined capturing and collecting agent of 4: 1, and Aerated stirring 3min, add again the foaming agent terpenic oil of 75g/t to stir 3min, scrape bubble 4min; In the washed with de-ionized water flotation cell, mineral are to neutral, and suction filtration, the oven dry of electrical heating infra-red radiation obtain the quartz sand concentrate.In gained quartz sand concentrate, the metallic element content of impurities is respectively 125.87 μ g/g, and wherein element of Fe content is 15.79 μ g/g, and element al is 37.28 μ g/g.Compare with selected former state, the metallic element content of impurities rate of removing is 41.47%; The rate of removing of element of Fe is 83.15%; The rate of removing of element al is 18.73%.
Embodiment 6:
Take the rough machined quartz sand of vein quartz rock as raw material, crush and screen and be prepared into 60～140 order quartz sands, water is that 0.6T, flow velocity are that under the 0.6m/s condition, iron removal by magnetic separation carries out pretreatment in magnetic field intensity after quartz sand pan feeding concentration adjustment is cleaned 3min to 60wt%; Adopt the pretreated quartz sand of two sections zwitterion reverse floatation process flotation, with clear water, pretreated quartz sand ore pulp concentration adjustment is arrived 20wt%, in one section flotation, with the adjusting agent sulfuric acid of 100g/t, slurry pH is adjusted to 5 and Aerated stirring 5min, add 40g/t cation-collecting agent octadecyl trimethylene diamines Aerated stirring 5min, add again the foaming agent terpenic oil of 60g/t to stir 5min, scrape bubble 5min; In bis flotation, slurry pH with the adjusting agent sodium carbonate of 200g/t after with one section flotation is adjusted to 9 and Aerated stirring 5min, add 80g/t anion collecting agent, be petroleum sodium sulfonate: octyl group hydroximic acid mass ratio is the combined capturing and collecting agent of 4: 1, and Aerated stirring 5min, add again the foaming agent terpenic oil of 60g/t to stir 5min, scrape bubble 5min; In the washed with de-ionized water flotation cell, mineral are to neutral, and suction filtration, the oven dry of electrical heating infra-red radiation obtain the quartz sand concentrate.In gained quartz sand concentrate, the metallic element content of impurities is respectively 198.79 μ g/g, and wherein element of Fe content is 71.62 μ g/g, and element al is 39.36 μ g/g.Compare with selected former state, the metallic element content of impurities rate of removing is 7.84%; The rate of removing of element of Fe is 23.56%; The rate of removing of element al is 14.19%.
Embodiment 7:
Take the rough machined quartz sand of vein quartz rock as raw material, crush and screen and be prepared into 60～140 order quartz sands, water is that 0.6T, flow velocity are that under the 0.6m/s condition, iron removal by magnetic separation carries out pretreatment in magnetic field intensity after quartz sand pan feeding concentration adjustment is cleaned 3min to 60wt%; Adopt the pretreated quartz sand of two sections zwitterion reverse floatation process flotation, with clear water, pretreated quartz sand ore pulp concentration adjustment is arrived 20wt%, in one section flotation, with the adjusting agent sulfuric acid of 100g/t, slurry pH is adjusted to 5 and stir 5min, add 40g/t cation-collecting agent octadecyl trimethylene diamines Aerated stirring 5min, add again the foaming agent terpenic oil of 60g/t to stir 5min, scrape bubble 5min; In bis flotation, slurry pH with the adjusting agent sodium carbonate of 200g/t after with one section flotation is adjusted to 9 and Aerated stirring 5min, add 80g/t anion collecting agent, be petroleum sodium sulfonate: octyl group hydroximic acid mass ratio is the combined capturing and collecting agent of 4: 1, and Aerated stirring 5min, add again the foaming agent terpenic oil of 60g/t to stir 5min, scrape bubble 5min; In the washed with de-ionized water flotation cell, mineral are to neutral, and suction filtration, the oven dry of electrical heating infra-red radiation obtain the quartz sand concentrate.In gained quartz sand concentrate, the metallic element content of impurities is respectively 188.28 μ g/g, and wherein element of Fe content is 68.76 μ g/g, and element al is 39.32 μ g/g.Compare with selected former state, the metallic element content of impurities rate of removing is 12.46%; The rate of removing of element of Fe is 26.61%; The rate of removing of element al is 14.28%.
Embodiment 8:
Take the rough machined quartz sand of vein quartz rock as raw material, crush and screen and be prepared into 60～140 order quartz sands, water is that 0.8T, flow velocity are that under the 0.8m/s condition, iron removal by magnetic separation carries out pretreatment in magnetic field intensity after quartz sand pan feeding concentration adjustment is cleaned 4min to 60wt%; Adopt the pretreated quartz sand of two sections zwitterion reverse floatation process flotation, with clear water, pretreated quartz sand ore pulp concentration adjustment is arrived and be 20wt%, in one section flotation, with the adjusting agent sulfuric acid of 100g/t, slurry pH is adjusted to 5 and Aerated stirring 5min, add 40g/t cation-collecting agent myristyl trimethylene diamines Aerated stirring 5min, add again the foaming agent terpenic oil of 60g/t to stir 5min, scrape bubble 5min; In bis flotation, slurry pH with the adjusting agent sodium carbonate of 200g/t after with one section flotation is adjusted to 9 and Aerated stirring 5min, add 80g/t anion collecting agent, be petroleum sodium sulfonate: octyl group hydroximic acid mass ratio is the combined capturing and collecting agent of 4: 1, and Aerated stirring 5min, add again the foaming agent terpenic oil of 60g/t to stir 5min, scrape bubble 5min; In the washed with de-ionized water flotation cell, mineral are to neutral, and suction filtration, electrical heating infra-red radiation are dried; Obtain the quartz sand concentrate.In gained quartz sand concentrate, the metallic element content of impurities is respectively 182.07 μ g/g, and wherein element of Fe content is 61.89 μ g/g, and element al is 38.96 μ g/g.Compare with selected former state, the metallic element content of impurities rate of removing is 15.34%; The rate of removing of element of Fe is 33.94%; The rate of removing of element al is 15.06%.
Embodiment 9:
Take the rough machined quartz sand of vein quartz rock as raw material, crush and screen and be prepared into 60～140 order quartz sands, water is that 0.9T, flow velocity are that under the 1.0m/s condition, iron removal by magnetic separation carries out pretreatment in magnetic field intensity after quartz sand pan feeding concentration adjustment is cleaned 4min to 60wt%; Adopt the pretreated quartz sand of two sections zwitterion reverse floatation process flotation, with clear water, pretreated quartz sand ore pulp concentration adjustment is arrived and be 20wt%, in one section flotation, with the adjusting agent sulfuric acid of 100g/t, slurry pH is adjusted to 5 and stir 5min, add 40g/t cation-collecting agent myristyl trimethylene diamines Aerated stirring 5min, add again the foaming agent terpenic oil of 60g/t to stir 5min, scrape bubble 5min; In bis flotation, slurry pH with the adjusting agent sodium carbonate of 200g/t after with one section flotation is adjusted to 9 and Aerated stirring 5min, add 80g/t anion collecting agent, be petroleum sodium sulfonate: octyl group hydroximic acid mass ratio is the combined capturing and collecting agent of 4: 1, and Aerated stirring 5min, add again the foaming agent terpenic oil of 60g/t to stir 5min, scrape bubble 5min; In the washed with de-ionized water flotation cell, mineral are to neutral, and suction filtration, the oven dry of electrical heating infra-red radiation obtain the quartz sand concentrate.In gained quartz sand concentrate, the metallic element content of impurities is respectively 175.19 μ g/g, and wherein element of Fe content is 59.99 μ g/g, and element al is 38.89 μ g/g.Compare with selected former state, the metallic element content of impurities rate of removing is 18.54%; The rate of removing of element of Fe is 35.97%; The rate of removing of element al is 15.22%.
Each raw material that the present invention is cited, and the bound of each raw material of the present invention, interval value, and the bound of technological parameter (as temperature, time etc.), interval value can realize the present invention, do not enumerate embodiment at this.
Claims (8)
1. the low sour zwitterion reverse flotation quartz sand technique of free-floride, is characterized in that, it comprises the following steps: (1) pretreatment: quartz sand is carried out ore grinding and screening, be prepared into 60 ~ 140 order quartz sands, then clean and magnetic separation; (2) flotation: water is with pretreated quartz sand ore pulp concentration adjustment to 20 ~ 24wt%, adopt two sections pretreated quartz sands of reverse floatation process flotation, in one section flotation, with the sulfuric acid of 100g/t ~ 200g/t, slurry pH is adjusted to 4 ~ 5 and Aerated stirring, add 40g/t ~ 80g/t cation-collecting agent and Aerated stirring, the foaming agent that adds again 60g/t ~ 75g/t stirs and scrapes bubble; In bis flotation, the slurry pH with the sodium carbonate of 200g/t ~ 300g/t after with one section flotation is adjusted to 9 ~ 10 and Aerated stirring, adds 80g/t ~ 150g/t anion collecting agent and Aerated stirring, then adds the foaming agent of 60g/t ~ 75g/t, stirs and scrape bubble; (3) water cleans the interior mineral of flotation cell to neutral, and the suction filtration oven dry obtains the quartz sand concentrate;
Described cation-collecting agent is the trimethylene diamines, and the trimethylene diamines is N-dodecyl-1,3-trimethylene diamines or N-myristyl-1,3-trimethylene diamines or N-octadecyl-1, a kind of in 3-trimethylene diamines; Described anion collecting agent is combined capturing and collecting agent, and the petroleum sodium sulfonate and the octyl group hydroximic acid that are 4:1 by mass ratio form.
2. a kind of free-floride according to claim 1 is hanged down sour zwitterion reverse flotation quartz sand technique, it is characterized in that, described quartz sand is the rough machined quartz sand of vein quartz rock, wherein the content of silica is more than or equal to 95.0wt%, the content of metallic impurity elements iron less than the content of 100 μ g/g, impurity element aluminium less than 50 μ g/g.
3. the low sour zwitterion reverse flotation quartz sand technique of a kind of free-floride according to claim 1, is characterized in that, described foaming agent is terpenic oil.
4. a kind of free-floride according to claim 1 is hanged down sour zwitterion reverse flotation quartz sand technique, it is characterized in that, the operating process of described ore grinding is: according to the mass ratio 1:(2-5 of quartz sand and ball-milling medium), add quartz sand material and ball-milling medium in each rotating cylinder of planetary ball mill, rotating speed is 1380r/mim, ore grinding time 4s ~ 10s, grinding process is for dry grinding, in order to the dissociating impurities mineral.
5. the low sour zwitterion reverse flotation quartz sand technique of a kind of free-floride according to claim 1, is characterized in that, high frequency vibration screen is adopted in described screening, double deck screen, and screen size is 60 orders, 140 orders, the method for screening is wet screening.
6. a kind of free-floride according to claim 1 is hanged down sour zwitterion reverse flotation quartz sand technique, it is characterized in that, described scouring is that water is cleaned quartz sand pan feeding concentration adjustment to 40 ~ 60wt%, cleans time 3min ~ 6min, friction and cleaned quartz surface; Described magnetic separation is high-gradient magnetic separation, and magnetic field intensity is 0.6 ~ 0.9T, and flow velocity is 0.6 ~ 1.0m/s.
7. the low sour zwitterion reverse flotation quartz sand technique of a kind of free-floride according to claim 1, is characterized in that, described water is deionized water.
8. the low sour zwitterion reverse flotation quartz sand technique of a kind of free-floride according to claim 1, is characterized in that, described oven dry is electrical heating infra-red radiation oven dry under the condition of 80 ℃ ~ 105 ℃ of temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210081288 CN102600982B (en) | 2012-03-26 | 2012-03-26 | Fluoride-free low-acid zwitterion quartz sand reverse flotation process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210081288 CN102600982B (en) | 2012-03-26 | 2012-03-26 | Fluoride-free low-acid zwitterion quartz sand reverse flotation process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102600982A CN102600982A (en) | 2012-07-25 |
| CN102600982B true CN102600982B (en) | 2013-06-12 |
Family
ID=46518967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210081288 Active CN102600982B (en) | 2012-03-26 | 2012-03-26 | Fluoride-free low-acid zwitterion quartz sand reverse flotation process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102600982B (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103272699B (en) * | 2013-05-31 | 2015-05-27 | 北京矿冶研究总院 | Method for separating granite ore |
| CN103736597B (en) * | 2013-12-30 | 2016-02-17 | 新疆有色金属研究所 | The method of feldspar or quartz mineral surface clean |
| CN105948062B (en) * | 2016-04-28 | 2018-02-13 | 江苏凯达石英有限公司 | The preparation method of glass sand |
| CN106076650B (en) * | 2016-06-14 | 2018-07-10 | 蚌埠玻璃工业设计研究院 | A kind of quartz mineral purifying and flotation agent |
| CN107032600B (en) * | 2017-03-20 | 2019-07-16 | 凯盛石英材料（黄山）有限公司 | A method of TFT-LCD silicon powder is prepared using vein quartz tailings |
| CN107377229A (en) * | 2017-09-29 | 2017-11-24 | 江苏闽江矿业有限公司 | A kind of silica sand method for floating |
| CN108706601B (en) * | 2018-08-31 | 2019-12-13 | 贺州市骏鑫矿产品有限责任公司 | Preparation method of potassium feldspar powder |
| CN109110767B (en) * | 2018-09-05 | 2020-07-17 | 凯盛石英材料（黄山）有限公司 | Method for producing low-iron quartz dry sand in mass production mode |
| CN108793731B (en) * | 2018-09-05 | 2021-03-23 | 中建材蚌埠玻璃工业设计研究院有限公司 | Preparation method of raw material for ultra-white glass |
| CN109261344A (en) * | 2018-09-12 | 2019-01-25 | 江西金泰矿业有限公司 | The method of purification and konilite of talcum association type natural powdery quartz |
| CN110665631A (en) * | 2019-09-11 | 2020-01-10 | 江苏凯达石英股份有限公司 | Preparation method of high-purity quartz sand |
| CN110898982B (en) * | 2019-12-02 | 2021-10-26 | 凯盛石英材料（太湖）有限公司 | Method for preparing optical glass raw material by adopting river channel wastes |
| CN110976103A (en) * | 2019-12-25 | 2020-04-10 | 中建材蚌埠玻璃工业设计研究院有限公司 | Flotation combination method for purifying iron oxide dip-dyed quartz |
| CN111229393B (en) * | 2020-01-16 | 2021-07-20 | 辽宁科技大学 | Magnesite beneficiation process with short flow and over-grinding prevention |
| CN115178372A (en) * | 2021-04-01 | 2022-10-14 | 新沂市中大石英科技有限公司 | High-efficiency magnetic separation method for quartz sand |
| CN113926590A (en) * | 2021-11-01 | 2022-01-14 | 武汉理工大学 | Flotation reagent and flotation method for separating feldspar from quartz |
| CN114887772B (en) * | 2022-05-23 | 2024-03-15 | 连云港福东正佑照明电器有限公司 | Quartz sand flotation method and device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5334364A (en) * | 1991-05-28 | 1994-08-02 | Materias Primas Monterrey, S.A. De C.V. | Process for purifying silica sand |
| CN1147364C (en) * | 2001-06-06 | 2004-04-28 | 山东蓝星玻璃(集团)有限公司 | Floating method and floating agent for floating feldspar and quartz from silica sand |
| KR101575610B1 (en) * | 2009-11-04 | 2015-12-09 | 주식회사 케이씨씨 | A method for preparing high-purity silica from low grade silica stone |
| CN101940975B (en) * | 2010-09-03 | 2012-09-19 | 成都理工大学 | Technology for purifying pyrite type quartz sandstones through floatation and iron removal |
| CN102189037B (en) * | 2011-03-08 | 2015-06-17 | 仪征风日石英科技有限公司 | Impurity removal process for quartz sand |
| CN102319616A (en) * | 2011-04-29 | 2012-01-18 | 罗贵达 | Impurity removal separation and purification method for weathering feldspar quarry |
-
2012
- 2012-03-26 CN CN 201210081288 patent/CN102600982B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN102600982A (en) | 2012-07-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102600982B (en) | Fluoride-free low-acid zwitterion quartz sand reverse flotation process | |
| CN103752401B (en) | Potash feldspar iron removal process | |
| CN101733192A (en) | Method for purifying quartz sand ore by using physical method | |
| CN102602942B (en) | Method for preparing high-purity quartz sand | |
| US4401638A (en) | Process for purifying silica sand | |
| CN103922343B (en) | Silicon carbide cutting blade material de_ironing refinement method | |
| CN104743563B (en) | Process for purifying kaolin | |
| CN101940975B (en) | Technology for purifying pyrite type quartz sandstones through floatation and iron removal | |
| CN104098101A (en) | Production technology of high-purity quartz sand | |
| CN105000565A (en) | Compounding-based quartz sand purification technology | |
| CN105921258A (en) | Method for impurity removal and whitening of potassium feldspar | |
| CN111874914A (en) | Method for preparing 4N high-purity quartz sand by taking pegmatite quartz as raw material | |
| CN110404667A (en) | A method of recycling rich calcium pyrochlore from the high mud carbonate-type niobium polymetallic ore of weathering | |
| CN108059157A (en) | A kind of method of purification of aphanitic graphite | |
| CN111874915A (en) | Method for preparing high-purity quartz sand by taking vein quartz as raw material | |
| CN104925822A (en) | Fine purification method of landed natural feldspar ore | |
| CN111167597B (en) | Deep purification method and equipment for quartz tailing slime | |
| Wei et al. | Flotation behavior, collector adsorption mechanism of quartz and feldspar-quartz systems using PEA as a novel green collector | |
| CN109013046A (en) | A method of recycling spodumene from the solid waste of magnetism containing spodumene | |
| CN111874913B (en) | Method for purifying quartz by chloridizing roasting | |
| Dong et al. | A review on new technological progress for beneficiation of refractory phosphate ore in China | |
| CN102876904B (en) | Method for leaching beryllium from beryllium minerals of bertrandite | |
| CN102432072B (en) | Method for preparing magnesium oxide, ferric oxide, silicon dioxide and boric acid from ludwigite | |
| Li et al. | Application of mixed collectors on quartz-feldspar by fluorine-free flotation separation and their interaction mechanism: A review | |
| CN105129783B (en) | It is a kind of using desulfurization slag as the processing technology of feedstock purification graphite |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 430070 Hubei Province, Wuhan city Hongshan District Luoshi Road No. 122 Patentee after: WUHAN University OF TECHNOLOGY Patentee after: JIANGSU KAIDA SILICA Co.,Ltd. Address before: 430070 Hubei Province, Wuhan city Hongshan District Luoshi Road No. 122 Patentee before: WUHAN University OF TECHNOLOGY Patentee before: JIANGSU KAIDA SILICA Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210611 Address after: 430070 Hubei Province, Wuhan city Hongshan District Luoshi Road No. 122 Patentee after: WUHAN University OF TECHNOLOGY Address before: 430070 Hubei Province, Wuhan city Hongshan District Luoshi Road No. 122 Patentee before: WUHAN University OF TECHNOLOGY Patentee before: JIANGSU KAIDA SILICA Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211103 Address after: 723200 Wen Chuan Zhen Wen Dong Cun, Chenggu County, Hanzhong City, Shaanxi Province Patentee after: Shaanxi Hexing silica sand Co.,Ltd. Address before: 430070 Hubei Province, Wuhan city Hongshan District Luoshi Road No. 122 Patentee before: WUHAN University OF TECHNOLOGY |