CN103949318B - The spun yarn evenness bulk flotation method of low grade silicon calcium collophanite - Google Patents
The spun yarn evenness bulk flotation method of low grade silicon calcium collophanite Download PDFInfo
- Publication number
- CN103949318B CN103949318B CN201410170388.XA CN201410170388A CN103949318B CN 103949318 B CN103949318 B CN 103949318B CN 201410170388 A CN201410170388 A CN 201410170388A CN 103949318 B CN103949318 B CN 103949318B
- Authority
- CN
- China
- Prior art keywords
- flotation
- undersize
- reverse
- concentration
- addition
- 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
Landscapes
- Manufacture And Refinement Of Metals (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
A kind of spun yarn evenness bulk flotation method of low grade silicon calcium collophanite, the method is by levigate for low grade silicon calcium collophanite, add water and make raw ore slurry, the raw ore slurry dusting cover of milled is sieved, by on-the-sieve material after Regrinding, add water and make raw ore slurry and undersize material and be placed in floatation equipment and carry out direct flotation roughly select, it is thus achieved that undersize direct flotation rougher concentration and mine tailing；Undersize rougher concentration is counter to float, it is thus achieved that undersize concentrate through reverse flotation and mine tailing；Undersize reverse flotation rougher tailings carries out reverse flotation and selects, it is thus achieved that undersize reverse flotation concentrate selection again and mine tailing。The method of the present invention, compared with two sections of Continuous Grinding techniques, can improve flotation conditions on the one hand, reduces the loss of the response rate that flotation operation brings due to fine fraction mechanical entrapment；On the other hand, reduce the energy consumption of secondary grinding, and then reduce beneficiation cost。The method of the present invention can play good flotation effect, it is easy to accomplish the industrialized production that low grade silicon calcium collophanite purifies。
Description
Technical field
The invention belongs to technical field of mineral processing, particularly to a kind of spun yarn evenness bulk flotation method of low grade silicon calcium collophanite。
Background technology
China's phosphate rock resource enriches, and resource base reserves occupy the second in the world, but rich ore is few, and average grade is only about 17%, and difficult ore dressing is many, and easily ore dressing is few。In proved reserves, the Sedimentary phosphate rock (collophane) of difficult choosing accounts for the 85% of gross reserves, and majority is middle-low grade Ore。To after the sorting and must remove carbonate and silicate impurity of this kind of Ore simultaneously, can be only achieved the requirement of composting, wherein flotation is most important dressing method, and the floatation process of current collophane mainly has single direct floatation process, single reverse floatation process, direct reverse flotation technique, anyway floatation process, bi-anti-symmetric matrix technique。Wherein single reverse floatation process is applicable to high-carbon hydrochlorate low silicon content rock phosphate in powder, is suppression Phosphate minerals under acid medium, then with the collecting agent emersion carbonate mineral that selectivity is strong；Other three kinds of techniques are mainly used in silico-calcium (or calcium silicon) matter rock phosphate in powder, its essence is the organic assembling of " carbonate flotation " and " silicate flotation " two kinds of technology, namely gets rid of the carbonate in rock phosphate in powder and silicate impurity respectively with " two step floatation process "。According to handled ore properties determine employing " positive and negative ", " anyway " or " double; two anti-" technology。The ground such as Yunnan, Hubei collophane many genus silicon calcium collophanite, grade is relatively low, and disseminated grain size is thinner, some needs to be finely ground to-0.074mm is more than 90%, monomer dissociation could be realized, owing to valuable mineral is different with the hardness of gangue mineral, grinding process exists selective milling, the relatively low mineral of some hardness occur overground, finally create substantial amounts of secondary slime。Fine mineral is relatively low with the probability of bubble hit, adhesion, affects flotation rate, and easily produces particulate and carry secretly, affects concentrate grade and the response rate；And the specific surface area of fine mineral is big, to medicament non-selective adsorption, medicine consumption strengthens, and adds beneficiation cost, big additionally, due to fine mineral specific surface energy, it is easy to be adsorbed on the mineral surfaces of suitable flotation granularity, reduce the floatability of these mineral。
Summary of the invention
The technical problem to be solved is to produce, after there is fine grinding for current low grade silicon calcium collophanite, the problem that substantial amounts of secondary slime can worsen floatation process, a kind of spun yarn evenness bulk flotation method of low grade silicon calcium collophanite is provided, is finally reached the effect sub-electing qualified products with relatively low beneficiation cost。
The technical problem to be solved is to be realized by following technical scheme。The present invention is a kind of spun yarn evenness bulk flotation method of low grade silicon calcium collophanite, is characterized in, its step is as follows:
(1) the low levigate part to fineness-0.074mm of grade silicon calcium collophanite is accounted for the 60.00～80.00% of whole material gross weight, then add water and make the raw ore slurry that weight concentration is 30.00～50.00%；
(2) being sieved by the raw ore slurry of ore grinding dusting cover, screening operation concentration is 30.00-50.00%, respectively the granularity of classification 0.074mm, 0.063mm, 0.045mm, and the lower concentration of sieve is adjusted to 15.00～35.00%, and on sieve, concentration is 45.00～65.00%；
(3) by on-the-sieve material after Regrinding, the part of fineness-0.074mm accounts for the 80～95% of whole material gross weight, then adds water and makes the raw ore slurry that weight concentration is 30.00～40.00%；
(4) being placed in floatation equipment by the material sieved after regrinding with the material under sieve, low whipping speed is initially charged Na when being 1200～2100rpm2CO3Regulate pH, Na2CO3Addition be 1000-3000g/t, add waterglass stirring, the addition of waterglass is 6000～8000g/t, add direct flotation collecting agent, and stir, the addition of direct flotation collecting agent is 1800～2500g/t, then carries out direct flotation and roughly selects, it is thus achieved that undersize direct flotation rougher concentration and mine tailing；
(5) undersize rougher concentration is carried out reverse floatation process, low whipping speed is initially charged mixed acid for adjusting pH when being 1200～2100rpm, the addition of nitration mixture is 6000-8000g/t, add collecting agent in reverse floatation, and stir, the addition of collecting agent in reverse floatation is 300～500g/t, then carries out reverse flotation and roughly selects, it is thus achieved that undersize concentrate through reverse flotation and mine tailing；
(6) when being 1200～2100rpm by undersize reverse flotation rougher tailings low whipping speed, being initially charged mixed acid for adjusting pH, the addition of nitration mixture is 500-1000g/t, then carries out reverse flotation and selects, it is thus achieved that undersize reverse flotation concentrate selection again and mine tailing。
In the spun yarn evenness bulk flotation method of low grade silicon calcium collophanite of the present invention, it is preferred that the step of technical scheme is as follows:
(1) the low levigate part to fineness-0.074mm of grade silicon calcium collophanite is accounted for the 65.00～75.00% of whole material gross weight, then add water and make the raw ore slurry that weight concentration is 35.00～45.00%；
(2) being sieved by the raw ore slurry of ore grinding dusting cover, screening operation concentration is 35.00～45.00%, respectively the granularity of classification 0.074mm, 0.063mm, 0.045mm, and the lower concentration of sieve is adjusted to 20.00～30.00%, and on sieve, concentration is 50.00～60.00%；
(3) by on-the-sieve material after Regrinding, the part of fineness-0.074mm accounts for the 85～90% of whole material gross weight, then adds water and makes the raw ore slurry that weight concentration is 33.00～36.00%；
(4) being placed in floatation equipment by the material sieved after regrinding with the material under sieve, low whipping speed is initially charged Na when being 1500～1800rpm2CO3Regulate pH, Na2CO3Addition be 1500-2500g/t, add waterglass stirring 2～4min, the addition of waterglass is 6500～7500g/t, add direct flotation collecting agent, and stir 2～4min, the addition of direct flotation collecting agent is 2000～2200g/t, then carries out 4～8min direct flotation and roughly selects, it is thus achieved that undersize direct flotation rougher concentration and mine tailing；
(5) undersize rougher concentration is carried out reverse floatation process, low whipping speed is initially charged mixed acid for adjusting pH when being 1500～1800rpm, the addition of nitration mixture is 6500-7500g/t, add collecting agent in reverse floatation, and stir 1～2min, the addition of collecting agent in reverse floatation is 350～450g/t, then carries out 4～8min reverse flotation and roughly selects, it is thus achieved that undersize concentrate through reverse flotation and mine tailing；
(6) when being 1500～1800rpm by undersize reverse flotation rougher tailings low whipping speed, it is initially charged mixed acid for adjusting pH, the addition of nitration mixture is 700-800g/t, then carries out 4～8min reverse flotation and selects, it is thus achieved that undersize reverse flotation concentrate selection again and mine tailing。
In the spun yarn evenness bulk flotation method of low grade silicon calcium collophanite of the present invention, it is preferred that the step of technical scheme as follows:
(1) the low levigate part to fineness-0.074mm of grade silicon calcium collophanite is accounted for the 65.00～75.00% of whole material gross weight, then add water and make the raw ore slurry that weight concentration is 40.00%；
(2) being sieved by the raw ore slurry of ore grinding dusting cover, screening operation concentration is 40.00%, respectively the granularity of classification 0.074mm, 0.063mm, 0.045mm, and the lower concentration of sieve is adjusted to 25.00%, and on sieve, concentration is 55.00%；
(3) by on-the-sieve material after Regrinding, the part of fineness-0.074mm accounts for the 90% of whole material gross weight, then adds water and makes the raw ore slurry that weight concentration is 35.00%；
(4) being placed in floatation equipment by the material sieved after regrinding with the material under sieve, low whipping speed is initially charged Na when being 1700rpm2CO3Regulate pH, Na2CO3Addition be 2000g/t, add waterglass stirring 2～4min, the addition of waterglass is 7000g/t, add direct flotation collecting agent, and stir 2～4min, the addition of direct flotation collecting agent is 2100g/t, then carries out 4～8min direct flotation and roughly selects, it is thus achieved that undersize direct flotation rougher concentration and mine tailing；
(5) undersize rougher concentration is carried out reverse floatation process, low whipping speed is initially charged mixed acid for adjusting pH when being 1700rpm, the addition of nitration mixture is 7000g/t, add collecting agent in reverse floatation, and stir 1～2min, the addition of collecting agent in reverse floatation is 400g/t, then carries out 4～8min reverse flotation and roughly selects, it is thus achieved that undersize concentrate through reverse flotation and mine tailing；
(6) when being 1700rpm by undersize reverse flotation rougher tailings low whipping speed, being initially charged mixed acid for adjusting pH, the addition of nitration mixture is 750g/t, then carries out 4～8min reverse flotation and selects, it is thus achieved that undersize reverse flotation concentrate selection again and mine tailing。
In the spun yarn evenness bulk flotation method of low grade silicon calcium collophanite of the present invention: the undersize of acquisition concentrate selection again can be back to undersize reverse flotation and roughly select in operation, carry out reverse flotation together with undersize direct flotation rougher concentration and roughly select。
In the spun yarn evenness bulk flotation method of low grade silicon calcium collophanite of the present invention: described direct flotation collecting agent can be existing disclosed in any collecting agent for low grade silicon calcium collophanite direct flotation, it is preferred to anionic collector C10-C22Alkyl fatty acid or fatty acid potassium salt or fatty acid sodium salt。
In the spun yarn evenness bulk flotation method of low grade silicon calcium collophanite of the present invention: described collecting agent in reverse floatation can be existing disclosed in any collecting agent for low grade silicon calcium collophanite reverse flotation, it is preferred to anionic collector C12-C20Higher fatty acids or fatty acid sodium salt。
In the spun yarn evenness bulk flotation method of low grade silicon calcium collophanite of the present invention: described nitration mixture can be existing disclosed in any nitration mixture for low grade silico-calcium matter Collophanite flotation, preferred nitration mixture is concentrated sulphuric acid and phosphate mixture, in concentrated sulphuric acid and phosphate mixture, the mass percent of a kind of raw material is not less than 5% preferably wherein, more preferably concentrated sulphuric acid: phosphoric acid quality is than for 1:1。
In the spun yarn evenness bulk flotation method of low grade silicon calcium collophanite of the present invention: be applicable to conventional low grade silicon calcium collophanite is processed, being particularly well-suited to the process with the low grade silicon calcium collophanite of following composition, it is by weight percentage: P2O515.50～25.50%, MgO1.90～6.90%, CaO25.50～39.98%, SiO229.01～39.98%, Fe2O30.91～1.98%；Al2O31.01～1.98%, surplus is impurity。After the method for the invention processes, it is thus achieved that the composition of final concentrate be P by weight percentage2O528.18～34.98%, MgO0.34～1.20%, CaO35.34～45.30%, SiO215.12～19.92%, Fe2O30.52～0.95%；Al2O30.31～0.49%, surplus is impurity, and the response rate of concentrate is 70.01～88.98%。
High frequency vibrating fine screen can in strict accordance with grading, raw ore after primary grinding through fine screening classification, on sieve, non-monomer dissociation obtains material and is mixed into undersize material after regrinding and roughly selects operation, compared with former two sections of Continuous Grindings, fine-graded content in final grinding particle size can be reduced on the one hand, improve flotation conditions, reduce the loss of the response rate that flotation operation brings due to fine fraction mechanical entrapment；On the other hand, owing to have selected the material of a part monomer dissociation in advance, greatly reduce the energy consumption of secondary grinding, and then reduce beneficiation cost。
Fine screening-regrinding technology is incorporated in phosphate rock floating by the present invention first, adopts dusting cover as classification and sorting equipment, achieves thickness grading on the one hand, well decrease because of the secondary slime amount of the overground generation of mineral, improve flotation effect；Dusting cover oversize P on the other hand2O5Grade improves nearly 3 grades, good implementation phase ore grinding stage grading compared with raw ore。This floatation process is compared with traditional two sections of Continuous Grinding direct reverse flotation techniques, concentrate grade and the response rate are obtained for raising, and floating agent dosage can reduce about 20%, and ore grinding cost is greatly reduced, flotation froth viscosity substantially reduces, and essence mine tailing sedimentation velocity is very fast；For by the very intractable low grade silicon calcium collophanite of traditional method, adopting the method for the present invention can play good flotation effect。In the method for floating of the present invention, the concentration of dusting cover oversize is about 55.00%, it is possible to directly feed ball mill of regrinding, it is easy to accomplish the industrialized production of low grade silicon calcium collophanite。
Accompanying drawing explanation
Fig. 1 is a kind of process chart of the inventive method。
Detailed description of the invention
Referring to accompanying drawing, further describe the specific embodiment of the invention, but do not constitute the restriction to right of the present invention。
The direct flotation collecting agent that adopts in the embodiment of the present invention, collecting agent in reverse floatation for, direct flotation inhibitor waterglass, nitration mixture and sodium carbonate be technical grade product。
The floatation equipment adopted in the embodiment of the present invention is the miniature closed circuit continuous flotator of XFLB type。
The Ore phosphorus ore containing selected in the embodiment of the present invention is mainly collophane and trace amounts of phosphorus lime stone, gangue mineral is mainly clay mineral, quartz and carbonate mineral, other also has a small amount of white mica, pyrite and goethitum, collophane granule with uniformly or non-uniformly embedding cloth in substrate (cement) calcite, and subparticle mutually cementing, wrap up embedding cloth, valuable mineral needs fine grinding ability monomer dissociation, and this Ore belongs to refractory ore。
In the embodiment of the present invention, the equipment by the low grade levigate employing of silicon calcium collophanite is XMG 63 four ore mills of type three roller。
Embodiment 1, a kind of spun yarn evenness bulk flotation method of low grade silicon calcium collophanite, its step is as follows:
(1) the low levigate part to fineness-0.074mm of grade silicon calcium collophanite is accounted for the 60.00% of whole material gross weight, then add water and make the raw ore slurry that weight concentration is 30.00%；
(2) being sieved by the raw ore slurry of ore grinding dusting cover, screening operation concentration is 30.00%, respectively the granularity of classification 0.074mm, 0.063mm, 0.045mm, and the lower concentration of sieve is adjusted to 15.00%, and on sieve, concentration is 45.00%；
(3) by on-the-sieve material after Regrinding, the part of fineness-0.074mm accounts for the 80% of whole material gross weight, then adds water and makes the raw ore slurry that weight concentration is 30.00%；
(4) being placed in floatation equipment by the material sieved after regrinding with the material under sieve, low whipping speed is initially charged Na when being 1200rpm2CO3Regulate pH, Na2CO3Addition be 1000g/t, add waterglass stirring, the addition of waterglass is 6000g/t, adding direct flotation collecting agent, and stir, the addition of direct flotation collecting agent is 1800g/t, then carry out direct flotation to roughly select, it is thus achieved that undersize direct flotation rougher concentration and mine tailing；
(5) undersize rougher concentration is carried out reverse floatation process, low whipping speed is initially charged mixed acid for adjusting pH when being 1200rpm, the addition of nitration mixture is 6000g/t, add collecting agent in reverse floatation, and stir, the addition of collecting agent in reverse floatation is 300g/t, then carries out reverse flotation and roughly selects, it is thus achieved that undersize concentrate through reverse flotation and mine tailing；
(6) when being 1200rpm by undersize reverse flotation rougher tailings low whipping speed, being initially charged mixed acid for adjusting pH, the addition of nitration mixture is 500g/t, then carries out reverse flotation and selects, it is thus achieved that undersize reverse flotation concentrate selection again and mine tailing。
Embodiment 2, a kind of spun yarn evenness bulk flotation method of low grade silicon calcium collophanite, its step is as follows:
(1) the low levigate part to fineness-0.074mm of grade silicon calcium collophanite is accounted for the 80.00% of whole material gross weight, then add water and make the raw ore slurry that weight concentration is 50.00%；
(2) being sieved by the raw ore slurry of ore grinding dusting cover, screening operation concentration is 50.00%, respectively the granularity of classification 0.074mm, 0.063mm, 0.045mm, and the lower concentration of sieve is adjusted to 35.00%, and on sieve, concentration is 65.00%；
(3) by on-the-sieve material after Regrinding, the part of fineness-0.074mm accounts for the 95% of whole material gross weight, then adds water and makes the raw ore slurry that weight concentration is 40.00%；
(4) being placed in floatation equipment by the material sieved after regrinding with the material under sieve, low whipping speed is initially charged Na when being 2100rpm2CO3Regulate pH, Na2CO3Addition be 3000g/t, add waterglass stirring, the addition of waterglass is 8000g/t, adding direct flotation collecting agent, and stir, the addition of direct flotation collecting agent is 2500g/t, then carry out direct flotation to roughly select, it is thus achieved that undersize direct flotation rougher concentration and mine tailing；
(5) undersize rougher concentration is carried out reverse floatation process, low whipping speed is initially charged mixed acid for adjusting pH when being 2100rpm, the addition of nitration mixture is 8000g/t, add collecting agent in reverse floatation, and stir, the addition of collecting agent in reverse floatation is 500g/t, then carries out reverse flotation and roughly selects, it is thus achieved that undersize concentrate through reverse flotation and mine tailing；
(6) when being 2100rpm by undersize reverse flotation rougher tailings low whipping speed, being initially charged mixed acid for adjusting pH, the addition of nitration mixture is 1000g/t, then carries out reverse flotation and selects, it is thus achieved that undersize reverse flotation concentrate selection again and mine tailing。
Embodiment 3, a kind of spun yarn evenness bulk flotation method of low grade silicon calcium collophanite, its step is as follows:
(1) the low levigate part to fineness-0.074mm of grade silicon calcium collophanite is accounted for the 65.00% of whole material gross weight, then add water and make the raw ore slurry that weight concentration is 35.00%；
(2) being sieved by the raw ore slurry of ore grinding dusting cover, screening operation concentration is 35.00%, respectively the granularity of classification 0.074mm, 0.063mm, 0.045mm, and the lower concentration of sieve is adjusted to 20.00%, and on sieve, concentration is 50.00%；
(3) by on-the-sieve material after Regrinding, the part of fineness-0.074mm accounts for the 85% of whole material gross weight, then adds water and makes the raw ore slurry that weight concentration is 33.00%；
(4) being placed in floatation equipment by the material sieved after regrinding with the material under sieve, low whipping speed is initially charged Na when being 1500rpm2CO3Regulate pH, Na2CO3Addition be 1500g/t, add waterglass stirring 2～4min, the addition of waterglass is 6500g/t, add direct flotation collecting agent, and stir 2～4min, the addition of direct flotation collecting agent is 2000g/t, then carries out 4～8min direct flotation and roughly selects, it is thus achieved that undersize direct flotation rougher concentration and mine tailing；
(5) undersize rougher concentration is carried out reverse floatation process, low whipping speed is initially charged mixed acid for adjusting pH when being 1500rpm, the addition of nitration mixture is 6500g/t, add collecting agent in reverse floatation, and stir 1～2min, the addition of collecting agent in reverse floatation is 350g/t, then carries out 4～8min reverse flotation and roughly selects, it is thus achieved that undersize concentrate through reverse flotation and mine tailing；
(6) when being 1500rpm by undersize reverse flotation rougher tailings low whipping speed, being initially charged mixed acid for adjusting pH, the addition of nitration mixture is 700g/t, then carries out 4～8min reverse flotation and selects, it is thus achieved that undersize reverse flotation concentrate selection again and mine tailing。
Embodiment 4, a kind of spun yarn evenness bulk flotation method of low grade silicon calcium collophanite, its step is as follows:
(1) the low levigate part to fineness-0.074mm of grade silicon calcium collophanite is accounted for the 75.00% of whole material gross weight, then add water and make the raw ore slurry that weight concentration is 45.00%；
(2) being sieved by the raw ore slurry of ore grinding dusting cover, screening operation concentration is 45.00%, respectively the granularity of classification 0.074mm, 0.063mm, 0.045mm, and the lower concentration of sieve is adjusted to 30.00%, and on sieve, concentration is 60.00%；
(3) by on-the-sieve material after Regrinding, the part of fineness-0.074mm accounts for the 90% of whole material gross weight, then adds water and makes the raw ore slurry that weight concentration is 36.00%；
(4) being placed in floatation equipment by the material sieved after regrinding with the material under sieve, low whipping speed is initially charged Na when being 1800rpm2CO3Regulate pH, Na2CO3Addition be 2500g/t, add waterglass stirring 2～4min, the addition of waterglass is 7500g/t, add direct flotation collecting agent, and stir 2～4min, the addition of direct flotation collecting agent is 2200g/t, then carries out 4～8min direct flotation and roughly selects, it is thus achieved that undersize direct flotation rougher concentration and mine tailing；
(5) undersize rougher concentration is carried out reverse floatation process, low whipping speed is initially charged mixed acid for adjusting pH when being 1800rpm, the addition of nitration mixture is 7500g/t, add collecting agent in reverse floatation, and stir 1～2min, the addition of collecting agent in reverse floatation is 450g/t, then carries out 4～8min reverse flotation and roughly selects, it is thus achieved that undersize concentrate through reverse flotation and mine tailing；
(6) when being 1800rpm by undersize reverse flotation rougher tailings low whipping speed, being initially charged mixed acid for adjusting pH, the addition of nitration mixture is 800g/t, then carries out 4～8min reverse flotation and selects, it is thus achieved that undersize reverse flotation concentrate selection again and mine tailing。
Embodiment 5, a kind of spun yarn evenness bulk flotation method of low grade silicon calcium collophanite, its step is as follows:
(1) the low levigate part to fineness-0.074mm of grade silicon calcium collophanite is accounted for the 65.00～75.00% of whole material gross weight, then add water and make the raw ore slurry that weight concentration is 40.00%；
(2) being sieved by the raw ore slurry of ore grinding dusting cover, screening operation concentration is 40.00%, respectively the granularity of classification 0.074mm, 0.063mm, 0.045mm, and the lower concentration of sieve is adjusted to 25.00%, and on sieve, concentration is 55.00%；
(3) by on-the-sieve material after Regrinding, the part of fineness-0.074mm accounts for the 88% of whole material gross weight, then adds water and makes the raw ore slurry that weight concentration is 35.00%；
(4) being placed in floatation equipment by the material sieved after regrinding with the material under sieve, low whipping speed is initially charged Na when being 1700rpm2CO3Regulate pH, Na2CO3Addition be 2000g/t, add waterglass stirring 2～4min, the addition of waterglass is 7000g/t, add direct flotation collecting agent, and stir 2～4min, the addition of direct flotation collecting agent is 2100g/t, then carries out 4～8min direct flotation and roughly selects, it is thus achieved that undersize direct flotation rougher concentration and mine tailing；
(5) undersize rougher concentration is carried out reverse floatation process, low whipping speed is initially charged mixed acid for adjusting pH when being 1700rpm, the addition of nitration mixture is 7000g/t, add collecting agent in reverse floatation, and stir 1～2min, the addition of collecting agent in reverse floatation is 400g/t, then carries out 4～8min reverse flotation and roughly selects, it is thus achieved that undersize concentrate through reverse flotation and mine tailing；
(6) when being 1700rpm by undersize reverse flotation rougher tailings low whipping speed, being initially charged mixed acid for adjusting pH, the addition of nitration mixture is 750g/t, then carries out 4～8min reverse flotation and selects, it is thus achieved that undersize reverse flotation concentrate selection again and mine tailing。
Embodiment 6, in the spun yarn evenness bulk flotation method of the low grade silicon calcium collophanite described in embodiment 1-5 any one: the undersize of acquisition concentrate selection again is back to undersize reverse flotation and roughly selects in operation, carry out reverse flotation together with undersize direct flotation rougher concentration and roughly select。
Embodiment 7, in the spun yarn evenness bulk flotation method of the low grade silicon calcium collophanite described in embodiment 1-6 any one: described direct flotation collecting agent preferred anionic collecting agent C10-C22Alkyl fatty acid or fatty acid potassium salt or fatty acid sodium salt。
Embodiment 8, in the spun yarn evenness bulk flotation method of the low grade silicon calcium collophanite described in embodiment 1-7 any one: described collecting agent in reverse floatation is selected from anionic collector C12-C20Higher fatty acids or fatty acid sodium salt。
Embodiment 9, in the spun yarn evenness bulk flotation method of the low grade silicon calcium collophanite described in embodiment 1-8 any one: described nitration mixture is concentrated sulphuric acid and phosphate mixture。
Embodiment 10, in the spun yarn evenness bulk flotation method of the low grade silicon calcium collophanite described in embodiment 9: in described nitration mixture, concentrated sulphuric acid is 1:1 with the mass ratio of phosphoric acid。
Embodiment 11, in the spun yarn evenness bulk flotation method of the low grade silicon calcium collophanite described in embodiment 1-10 any one: the composition of described low grade silicon calcium collophanite is P by weight percentage2O515.50～25.50%, MgO1.90～6.90%, CaO25.50～39.98%, SiO229.01～39.98%, Fe2O30.91～1.98%；Al2O31.01～1.98%, surplus is impurity。The composition of the final concentrate obtained is by weight percentage for P2O528.18～34.98%, MgO0.34～1.20%, CaO35.34～45.30%, SiO215.12～19.92%, Fe2O30.52～0.95%；Al2O30.31～0.49%, surplus is impurity, and the response rate of concentrate is 70.01～88.98%。
Embodiment 12, the spun yarn evenness bulk flotation methods experiment of low grade silicon calcium collophanite:
The composition of the low grade silicon calcium collophanite selected is P by weight percentage2O521.42%, MgO0.93%, CaO35.17%, SiO229.11%, Fe2O31.90%；Al2O31.04%, surplus is impurity。
Select XMG 63 four ore mills of type three roller that levigate for the low grade silicon calcium collophanite part to fineness less than 0.074mm is accounted for the 65.00% of whole material gross weight, then add water and make the raw ore slurry of weight concentration 40.00%；
Being sieved by the raw ore slurry of ore grinding dusting cover, screening operation concentration is 40.00%, the granularity of classification 0.045mm, and the lower concentration of sieve is adjusted to 20.00%, and on sieve, concentration is 60.00%；
By on-the-sieve material after Regrinding, the part of fineness-0.074mm accounts for the 85.00% of whole material gross weight, then adds water and makes the raw ore slurry that weight concentration is 35.00%；
Being placed in floatation equipment by the material after regrinding on sieve with the material under sieve, low whipping speed is initially charged Na when being 1600rpm2CO3Regulate pH, Na2CO3Addition be 2500g/t, add waterglass stirring 2～4min, the addition of waterglass is 7500g/t, add direct flotation collecting agent, and stir 2～4min, the addition of direct flotation collecting agent is 2000g/t, then carries out 4～8min direct flotation and roughly selects, it is thus achieved that undersize direct flotation rougher concentration and mine tailing；
Undersize rougher concentration is carried out reverse floatation process, low whipping speed is initially charged mixed acid for adjusting pH when being 1800rpm, the addition of nitration mixture is 7500g/t, add collecting agent in reverse floatation, and stir 1～2min, the addition of collecting agent in reverse floatation is 450g/t, then carries out 4～8min reverse flotation and roughly selects, it is thus achieved that undersize concentrate through reverse flotation and mine tailing；
When being 1800rpm by undersize reverse flotation rougher tailings low whipping speed, being initially charged mixed acid for adjusting pH, the addition of nitration mixture is 1000g/t, then carries out 4～8min reverse flotation and selects, it is thus achieved that undersize reverse flotation concentrate selection again and mine tailing；
The undersize concentrate selection again obtained in said method is back to undersize reverse flotation and roughly selects in operation, carries out reverse flotation and roughly select together with undersize direct flotation rougher concentration；
The composition of the final concentrate of the acquisition of said method is P by weight percentage2O528.58%, MgO0.30%, CaO41.50%, SiO219.22%, Fe2O30.95%；Al2O30.41%, surplus is impurity, and the response rate of concentrate is 83.56%。
Embodiment 13, the spun yarn evenness bulk flotation methods experiment of low grade silicon calcium collophanite:
The composition of the low grade silicon calcium collophanite selected is P by weight percentage2O521.32%, MgO0.88%, CaO35.17%, SiO229.11%, Fe2O31.90%；Al2O31.04%, surplus is impurity。
Select XMG 63 four ore mills of type three roller that levigate for the low grade silicon calcium collophanite part to fineness less than 0.074mm is accounted for the 75.00% of whole material gross weight, then add water and make the raw ore slurry of weight concentration 40.00%；
Being sieved by the raw ore slurry of ore grinding dusting cover, screening operation concentration is 40.00%, the granularity of classification 0.045mm, and the lower concentration of sieve is adjusted to 20.00%, and on sieve, concentration is 55.00%；
By on-the-sieve material after Regrinding, the part of fineness-0.074mm accounts for the 85.00% of whole material gross weight, then adds water and makes the raw ore slurry that weight concentration is 35.00%；
Being placed in floatation equipment by the material after regrinding on sieve with the material under sieve, low whipping speed is initially charged Na when being 1600rpm2CO3Regulate pH, Na2CO3Addition be 3000g/t, add waterglass stirring 2～4min, the addition of waterglass is 8000g/t, add direct flotation collecting agent, and stir 2～4min, the addition of direct flotation collecting agent is 2200g/t, then carries out 4～8min direct flotation and roughly selects, it is thus achieved that undersize direct flotation rougher concentration and mine tailing；
Undersize rougher concentration is carried out reverse floatation process, low whipping speed is initially charged mixed acid for adjusting pH when being 1800rpm, the addition of nitration mixture is 8000g/t, add collecting agent in reverse floatation, and stir 1～2min, the addition of collecting agent in reverse floatation is 500g/t, then carries out 4～8min reverse flotation and roughly selects, it is thus achieved that undersize concentrate through reverse flotation and mine tailing；
When being 1800rpm by undersize reverse flotation rougher tailings low whipping speed, being initially charged mixed acid for adjusting pH, the addition of nitration mixture is 1000g/t, then carries out 4～8min reverse flotation and selects, it is thus achieved that undersize reverse flotation concentrate selection again and mine tailing；
The undersize concentrate selection again obtained in said method is back to undersize reverse flotation and roughly selects in operation, carries out reverse flotation and roughly select together with undersize direct flotation rougher concentration；
The composition of the final concentrate of the acquisition of said method is P by weight percentage2O530.05%, MgO0.20%, CaO42.25%, SiO218.28%, Fe2O30.85%；Al2O30.34%, surplus is impurity, and the response rate of concentrate is 80.21%。
Embodiment 14, the spun yarn evenness bulk flotation methods experiment of low grade silicon calcium collophanite:
The composition of the low grade silicon calcium collophanite selected is P by weight percentage2O521.62%, MgO0.92%, CaO35.17%, SiO229.11%, Fe2O31.90%；Al2O31.04%, surplus is impurity。
Select XMG 63 four ore mills of type three roller that levigate for the low grade silicon calcium collophanite part to fineness less than 0.074mm is accounted for the 75.00% of whole material gross weight, then add water and make the raw ore slurry of weight concentration 40.00%；
Being sieved by the raw ore slurry dusting cover of ore grinding by material after regrinding on sieve, screening operation concentration is 40.00%, the granularity of classification 0.045mm, and the lower concentration of sieve is adjusted to 20.00%, and on sieve, concentration is 60.00%；
On-the-sieve material is after Regrinding, and the part of fineness-0.074mm accounts for the 90.00% of whole material gross weight, then adds water and makes the raw ore slurry that weight concentration is 35.00%；
Being placed in floatation equipment by the material after regrinding on sieve with the material under sieve, low whipping speed is initially charged Na when being 1600rpm2CO3Regulate pH, Na2CO3Addition be 2500g/t, add waterglass stirring 2～4min, the addition of waterglass is 7000g/t, add direct flotation collecting agent, and stir 2～4min, the addition of direct flotation collecting agent is 2000g/t raw ore, then carries out 4～8min direct flotation and roughly selects, it is thus achieved that undersize direct flotation rougher concentration and mine tailing；
Undersize rougher concentration is carried out reverse floatation process, low whipping speed is initially charged mixed acid for adjusting pH when being 1800rpm, the addition of nitration mixture is 7500g/t, add collecting agent in reverse floatation, and stir 1～2min, the addition of collecting agent in reverse floatation is 450g/t, then carries out 4～8min reverse flotation and roughly selects, it is thus achieved that undersize concentrate through reverse flotation and mine tailing；
When being 1800rpm by undersize reverse flotation rougher tailings low whipping speed, being initially charged mixed acid for adjusting pH, the addition of nitration mixture is 1000g/t, then carries out 4～8min reverse flotation and selects, it is thus achieved that undersize reverse flotation concentrate selection again and mine tailing；
The undersize concentrate selection again obtained in said method is back to undersize reverse flotation and roughly selects in operation, carries out reverse flotation and roughly select together with undersize direct flotation rougher concentration；
The composition of the final concentrate of the acquisition of said method is P by weight percentage2O530.15%, MgO0.18%, CaO43.01%, SiO217.68%, Fe2O30.92%；Al2O30.33%, surplus is impurity, and the response rate of concentrate is 80.95%。
Embodiment 15, the spun yarn evenness bulk flotation methods experiment of low grade silicon calcium collophanite:
The composition of the low grade silicon calcium collophanite selected is P by weight percentage2O521.22%, MgO0.96%, CaO34.67%, SiO229.99%, Fe2O31.90%；Al2O31.04%, surplus is impurity。
Select XMG 63 four ore mills of type three roller that levigate for the low grade silicon calcium collophanite part to fineness less than 0.074mm is accounted for the 80.00% of whole material gross weight, then add water and make the raw ore slurry of weight concentration 40.00%；
Being sieved by the raw ore slurry of ore grinding dusting cover, screening operation concentration is 40.00%, the granularity of classification 0.045mm, and the lower concentration of sieve is adjusted to 20.00%, and on sieve, concentration is 55.00%；
On-the-sieve material is after Regrinding, and the part of fineness-0.074mm accounts for the 95.00% of whole material gross weight, then adds water and makes the raw ore slurry that weight concentration is 35.00%；
Being placed in floatation equipment by the material after regrinding on sieve with the material under sieve, low whipping speed is initially charged Na when being 1600rpm2CO3Regulate pH, Na2CO3Addition be 3000g/t, add waterglass stirring 2～4min, the addition of waterglass is 8000g/t, add direct flotation collecting agent, and stir 2～4min, the addition of direct flotation collecting agent is 2400g/t, then carries out 4～8min direct flotation and roughly selects, it is thus achieved that undersize direct flotation rougher concentration and mine tailing；
Undersize rougher concentration is carried out reverse floatation process, low whipping speed is initially charged mixed acid for adjusting pH when being 1800rpm, the addition of nitration mixture is 8000g/t, add collecting agent in reverse floatation, and stir 1～2min, the addition of collecting agent in reverse floatation is 500g/t, then carries out 4～8min reverse flotation and roughly selects, it is thus achieved that undersize concentrate through reverse flotation and mine tailing；
When being 1800rpm by undersize reverse flotation rougher tailings low whipping speed, being initially charged mixed acid for adjusting pH, the addition of nitration mixture is 1000g/t, then carries out 4～8min reverse flotation and selects, it is thus achieved that undersize reverse flotation concentrate selection again and mine tailing；
The undersize concentrate selection again obtained in said method is back to undersize reverse flotation and roughly selects in operation, carries out reverse flotation and roughly select together with undersize direct flotation rougher concentration；
The composition of the final concentrate of the acquisition of said method is P by weight percentage2O529.85%, MgO0.21%, CaO42.05%, SiO217.88%, Fe2O30.92%；Al2O30.33%, surplus is impurity, and the response rate of concentrate is 81.21%。
Claims (9)
1. the spun yarn evenness bulk flotation method of one kind low grade silicon calcium collophanite, it is characterised in that its step is as follows:
(1) the low levigate part to fineness-0.074mm of grade silicon calcium collophanite is accounted for the 60.00～80.00% of whole material gross weight, then add water and make the raw ore slurry that weight concentration is 30.00～50.00%；
(2) being sieved by the raw ore slurry of ore grinding dusting cover, screening operation concentration is 30.00-50.00%, respectively the granularity of classification 0.074mm, 0.063mm, 0.045mm, and the lower concentration of sieve is adjusted to 15.00～35.00%, and on sieve, concentration is 45.00～65.00%；
(3) by on-the-sieve material after Regrinding, the part of fineness-0.074mm accounts for the 80～95% of whole material gross weight, then adds water and makes the raw ore slurry that weight concentration is 30.00～40.00%；
(4) being placed in floatation equipment by the material sieved after regrinding with the material under sieve, low whipping speed is initially charged Na when being 1200～2100rpm2CO3Regulate pH, Na2CO3Addition be 1000-3000g/t, add waterglass stirring, the addition of waterglass is 6000～8000g/t, add direct flotation collecting agent, and stir, the addition of direct flotation collecting agent is 1800～2500g/t, then carries out direct flotation and roughly selects, it is thus achieved that undersize direct flotation rougher concentration and mine tailing；
(5) undersize direct flotation rougher concentration is carried out reverse floatation process, low whipping speed is initially charged mixed acid for adjusting pH when being 1200～2100rpm, the addition of nitration mixture is 6000-8000g/t, add collecting agent in reverse floatation, and stir, the addition of collecting agent in reverse floatation is 300～500g/t, then carries out reverse flotation and roughly selects, it is thus achieved that undersize reverse flotation rougher concentration and mine tailing；
(6) when being 1200～2100rpm by undersize reverse flotation rougher tailings low whipping speed, being initially charged mixed acid for adjusting pH, the addition of nitration mixture is 500-1000g/t, then carries out reverse flotation and selects, it is thus achieved that undersize reverse flotation concentrate selection again and mine tailing。
2. the spun yarn evenness bulk flotation method of low grade silicon calcium collophanite according to claim 1, it is characterised in that its step is as follows:
(1) the low levigate part to fineness-0.074mm of grade silicon calcium collophanite is accounted for the 65.00～75.00% of whole material gross weight, then add water and make the raw ore slurry that weight concentration is 35.00～45.00%；
(2) being sieved by the raw ore slurry of ore grinding dusting cover, screening operation concentration is 35.00～45.00%, respectively the granularity of classification 0.074mm, 0.063mm, 0.045mm, and the lower concentration of sieve is adjusted to 20.00～30.00%, and on sieve, concentration is 50.00～60.00%；
(3) by on-the-sieve material after Regrinding, the part of fineness-0.074mm accounts for the 85～90% of whole material gross weight, then adds water and makes the raw ore slurry that weight concentration is 33.00～36.00%；
(4) being placed in floatation equipment by the material sieved after regrinding with the material under sieve, low whipping speed is initially charged Na when being 1500～1800rpm2CO3Regulate pH, Na2CO3Addition be 1500-2500g/t, add waterglass stirring 2～4min, the addition of waterglass is 6500～7500g/t, add direct flotation collecting agent, and stir 2～4min, the addition of direct flotation collecting agent is 2000～2200g/t, then carries out 4～8min direct flotation and roughly selects, it is thus achieved that undersize direct flotation rougher concentration and mine tailing；
(5) undersize direct flotation rougher concentration is carried out reverse floatation process, low whipping speed is initially charged mixed acid for adjusting pH when being 1500～1800rpm, the addition of nitration mixture is 6500-7500g/t, add collecting agent in reverse floatation, and stir 1～2min, the addition of collecting agent in reverse floatation is 350～450g/t, then carries out 4～8min reverse flotation and roughly selects, it is thus achieved that undersize reverse flotation rougher concentration and mine tailing；
(6) when being 1500～1800rpm by undersize reverse flotation rougher tailings low whipping speed, it is initially charged mixed acid for adjusting pH, the addition of nitration mixture is 700-800g/t, then carries out 4～8min reverse flotation and selects, it is thus achieved that undersize reverse flotation concentrate selection again and mine tailing。
3. the spun yarn evenness bulk flotation method of low grade silicon calcium collophanite according to claim 2, it is characterised in that its step is as follows:
(1) the low levigate part to fineness-0.074mm of grade silicon calcium collophanite is accounted for the 65.00～75.00% of whole material gross weight, then add water and make the raw ore slurry that weight concentration is 40.00%；
(2) being sieved by the raw ore slurry of ore grinding dusting cover, screening operation concentration is 40.00%, respectively the granularity of classification 0.074mm, 0.063mm, 0.045mm, and the lower concentration of sieve is adjusted to 25.00%, and on sieve, concentration is 55.00%；
(3) by on-the-sieve material after Regrinding, the part of fineness-0.074mm accounts for the 90% of whole material gross weight, then adds water and makes the raw ore slurry that weight concentration is 35.00%；
(4) being placed in floatation equipment by the material sieved after regrinding with the material under sieve, low whipping speed is initially charged Na when being 1700rpm2CO3Regulate pH, Na2CO3Addition be 2000g/t, add waterglass stirring 2～4min, the addition of waterglass is 7000g/t, add direct flotation collecting agent, and stir 2～4min, the addition of direct flotation collecting agent is 2100g/t, then carries out 4～8min direct flotation and roughly selects, it is thus achieved that undersize direct flotation rougher concentration and mine tailing；
(5) undersize direct flotation rougher concentration is carried out reverse floatation process, low whipping speed is initially charged mixed acid for adjusting pH when being 1700rpm, the addition of nitration mixture is 7000g/t, add collecting agent in reverse floatation, and stir 1～2min, the addition of collecting agent in reverse floatation is 400g/t, then carries out 4～8min reverse flotation and roughly selects, it is thus achieved that undersize reverse flotation rougher concentration and mine tailing；
(6) when being 1700rpm by undersize reverse flotation rougher tailings low whipping speed, being initially charged mixed acid for adjusting pH, the addition of nitration mixture is 750g/t, then carries out 4～8min reverse flotation and selects, it is thus achieved that undersize reverse flotation concentrate selection again and mine tailing。
4. the spun yarn evenness bulk flotation method of the low grade silicon calcium collophanite according to claim 1 or 2 or 3, it is characterized in that, the undersize of acquisition concentrate selection again is back to undersize reverse flotation and roughly selects in operation, carry out reverse flotation together with undersize direct flotation rougher concentration and roughly select。
5. the spun yarn evenness bulk flotation method of the low grade silicon calcium collophanite according to claim 1 or 2 or 3, it is characterised in that described direct flotation collecting agent is selected from anionic collector C10-C22Alkyl fatty acid or fatty acid potassium salt or fatty acid sodium salt。
6. the spun yarn evenness bulk flotation method of the low grade silicon calcium collophanite according to claim 1 or 2 or 3, it is characterised in that described collecting agent in reverse floatation is selected from anionic collector C12-C20Higher fatty acids or fatty acid sodium salt。
7. the spun yarn evenness bulk flotation method of the low grade silicon calcium collophanite according to claim 1 or 2 or 3, it is characterised in that described nitration mixture is concentrated sulphuric acid and phosphate mixture。
8. the spun yarn evenness bulk flotation method of low grade silicon calcium collophanite according to claim 7, it is characterised in that in described nitration mixture, concentrated sulphuric acid is 1:1 with the mass ratio of phosphoric acid。
9. the spun yarn evenness bulk flotation method of the low grade silicon calcium collophanite according to claim 1 or 2 or 3, it is characterised in that the composition of described low grade silicon calcium collophanite is P by weight percentage2O515.50～25.50%, MgO1.90～6.90%, CaO25.50～39.98%, SiO229.01～39.98%, Fe2O30.91～1.98%；Al2O31.01～1.98%, surplus is impurity。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410170388.XA CN103949318B (en) | 2014-04-25 | 2014-04-25 | The spun yarn evenness bulk flotation method of low grade silicon calcium collophanite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410170388.XA CN103949318B (en) | 2014-04-25 | 2014-04-25 | The spun yarn evenness bulk flotation method of low grade silicon calcium collophanite |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103949318A CN103949318A (en) | 2014-07-30 |
| CN103949318B true CN103949318B (en) | 2016-06-22 |
Family
ID=51326744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410170388.XA Active CN103949318B (en) | 2014-04-25 | 2014-04-25 | The spun yarn evenness bulk flotation method of low grade silicon calcium collophanite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103949318B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104785347B (en) * | 2015-04-03 | 2018-04-03 | 甘肃酒钢集团宏兴钢铁股份有限公司 | A kind of method for separating of the low-grade ferric oxide ore of high silicon |
| CN104801427B (en) * | 2015-05-11 | 2017-11-14 | 中蓝连海设计研究院 | A kind of high magnesium low-grade phosphorus ore coarse grain direct reverse flotation technique |
| CN104858068B (en) * | 2015-06-09 | 2017-11-14 | 中蓝连海设计研究院 | A kind of method that phosphorite tailings are handled using single direct floatation process |
| CN104959212B (en) * | 2015-07-07 | 2017-12-15 | 湖南有色金属研究院 | A kind of calcareous and classification beneficiation method of siliceous mixed type bone coal navajoite |
| CN109453891B (en) * | 2018-10-23 | 2021-06-18 | 宜都兴发化工有限公司 | High sesqui-collophanite spiral chute re-floating combined process |
| CN111330744B (en) * | 2018-12-19 | 2022-05-27 | 中蓝连海设计研究院有限公司 | Flotation method and pretreatment method for phosphate rock containing calcite |
| CN110624682B (en) * | 2019-09-05 | 2021-10-15 | 紫金矿业集团股份有限公司 | Laboratory ore grinding method for unevenly distributed gold ores |
| CN114682386B (en) * | 2020-12-26 | 2024-04-23 | 中蓝连海设计研究院有限公司 | Fractional step flotation method for treating medium-low grade silicon-calcium collophanite |
| CN115400881A (en) * | 2022-08-26 | 2022-11-29 | 广东邦普循环科技有限公司 | Method for purifying and whitening phosphogypsum |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6666335B1 (en) * | 1999-10-29 | 2003-12-23 | C.A.S.T. Minerals, Inc. | Multi-mineral/ash benefication process and apparatus |
| CN1730161A (en) * | 2005-07-30 | 2006-02-08 | 中蓝连海设计研究院 | Collophanite direct flotation and reverse flotation technique |
| UA20796U (en) * | 2006-08-03 | 2007-02-15 | Univ Nat Mining | Method of utilization of fly ashes of thermoelectric stations |
| CN102671755A (en) * | 2012-05-06 | 2012-09-19 | 鞍钢集团矿业公司 | Gravity selection-screening process additionally arranged before reverse flotation operation of hematite |
| CN102728451A (en) * | 2011-04-07 | 2012-10-17 | 新沂市经济信息中心 | Rutile ore part size fraction benefication joint production process |
| CN102728478A (en) * | 2012-07-07 | 2012-10-17 | 蚌埠玻璃工业设计研究院 | Beneficiation method for extracting feldspar and quartz from granite |
-
2014
- 2014-04-25 CN CN201410170388.XA patent/CN103949318B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6666335B1 (en) * | 1999-10-29 | 2003-12-23 | C.A.S.T. Minerals, Inc. | Multi-mineral/ash benefication process and apparatus |
| CN1730161A (en) * | 2005-07-30 | 2006-02-08 | 中蓝连海设计研究院 | Collophanite direct flotation and reverse flotation technique |
| UA20796U (en) * | 2006-08-03 | 2007-02-15 | Univ Nat Mining | Method of utilization of fly ashes of thermoelectric stations |
| CN102728451A (en) * | 2011-04-07 | 2012-10-17 | 新沂市经济信息中心 | Rutile ore part size fraction benefication joint production process |
| CN102671755A (en) * | 2012-05-06 | 2012-09-19 | 鞍钢集团矿业公司 | Gravity selection-screening process additionally arranged before reverse flotation operation of hematite |
| CN102728478A (en) * | 2012-07-07 | 2012-10-17 | 蚌埠玻璃工业设计研究院 | Beneficiation method for extracting feldspar and quartz from granite |
Non-Patent Citations (2)
| Title |
|---|
| 细粒低品位难选胶磷矿浮选研究;张凌燕，洪微，邱杨率，宋昱晗;《非金属矿》;20120331;第35卷(第2期);21-23，62 * |
| 辽宁某磁选尾矿回收磷灰石浮选试验;杨勇，朱孔金，钱押林;《武汉工程大学学报》;20110331;第33卷(第3期);53-55 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103949318A (en) | 2014-07-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103949318B (en) | The spun yarn evenness bulk flotation method of low grade silicon calcium collophanite | |
| CN103949350B (en) | A kind of dusting cover of low grade silico-calcium matter collophane stage flotation method of regrinding | |
| CN102744151B (en) | Branch flotation technology for silicon calcium collophanite | |
| CN110694788B (en) | Beneficiation method for high-calcium-magnesium type low-grade spodumene ore | |
| CN101972710B (en) | Double reverse flotation process of middle-low grade phosphorite | |
| CN104826738B (en) | A kind of stepped-flotation separation method for separating low grade calcite barite fluorite type ore | |
| CN102218377B (en) | Efficient copper-cobalt oxide ore combination collecting agent and copper oxide ore beneficiation method | |
| CN109453891B (en) | High sesqui-collophanite spiral chute re-floating combined process | |
| CN101850295A (en) | Beneficiation method for producing high-quality iron ore concentrate by low-grade magnetic iron ore | |
| CN105944825B (en) | A kind of ore dressing and desiliconizing enrichment method of Fine Hematite Ore | |
| CN105689149A (en) | Double-reverse flotation method applicable to silico-calcium phosphorite | |
| CN109465114B (en) | Flotation separation method for barite and dolomite | |
| CN102284372B (en) | Flotation method for carbonate minerals | |
| CN101829634A (en) | Flotation process of phosphorite with high iron and aluminum and low grade | |
| CN104128244B (en) | Method for recycling iron ore concentrate from iron tailings and obtained iron ore concentrate | |
| CN106269265A (en) | A kind of classification stepped-flotation separation technique processing high alumina high ferro silicon calcium collophanite | |
| CN103272698A (en) | Mineral separation process for recycling iron and rare earth in baotite magnetite flotation tailings | |
| CN104785360B (en) | The dense medium separation method of coarse fraction apatite is reclaimed in a kind of mine tailing from magnetic iron ore | |
| CN105170336A (en) | Method for improving antimony concentrate grade | |
| CN113731637B (en) | Low-grade mixed collophanite flotation method | |
| CN108325756A (en) | A kind of barite beneficiation method rich in calcite and witherite | |
| CN108114805A (en) | A kind of lean hematite stage grinding-magnetic separation shifts to an earlier date process for discarding tailings | |
| CN107824341B (en) | It is a kind of to improve difficult copper sulfide ore beneficiation and refer to calibration method | |
| CN104801425B (en) | A kind of phosphorus ore is classified many grade floatation process of dosing in batches | |
| CN103464289B (en) | A kind of method that low-grade phosphate ore mesosilicic acid slaine is deviate from |
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 |