CN102500462A - Rutile roughing technology consisting of selective ore grinding, coarse particle gravity separation and fine particle floatation - Google Patents
Rutile roughing technology consisting of selective ore grinding, coarse particle gravity separation and fine particle floatation Download PDFInfo
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- CN102500462A CN102500462A CN2011103180869A CN201110318086A CN102500462A CN 102500462 A CN102500462 A CN 102500462A CN 2011103180869 A CN2011103180869 A CN 2011103180869A CN 201110318086 A CN201110318086 A CN 201110318086A CN 102500462 A CN102500462 A CN 102500462A
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title claims abstract description 156
- 230000005484 gravity Effects 0.000 title claims abstract description 59
- 238000005516 engineering process Methods 0.000 title claims abstract description 27
- 238000000227 grinding Methods 0.000 title claims abstract description 24
- 239000010419 fine particle Substances 0.000 title claims abstract description 16
- 238000000926 separation method Methods 0.000 title abstract description 7
- 239000011362 coarse particle Substances 0.000 title abstract 4
- 238000005188 flotation Methods 0.000 claims abstract description 72
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 42
- 239000011707 mineral Substances 0.000 claims abstract description 42
- 239000012141 concentrate Substances 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 claims abstract description 18
- 238000005242 forging Methods 0.000 claims abstract description 11
- 239000002245 particle Substances 0.000 claims abstract description 7
- 238000011282 treatment Methods 0.000 claims description 32
- 238000012216 screening Methods 0.000 claims description 28
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 22
- 238000003801 milling Methods 0.000 claims description 18
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 11
- MPPQGYCZBNURDG-UHFFFAOYSA-N 2-propionyl-6-dimethylaminonaphthalene Chemical compound C1=C(N(C)C)C=CC2=CC(C(=O)CC)=CC=C21 MPPQGYCZBNURDG-UHFFFAOYSA-N 0.000 claims description 6
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 6
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 6
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims description 6
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 6
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 6
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- SPBQTHJZZJMBJO-UHFFFAOYSA-N phenylmethoxyarsonic acid Chemical compound C(C1=CC=CC=C1)O[As](O)(O)=O SPBQTHJZZJMBJO-UHFFFAOYSA-N 0.000 claims description 6
- 239000011734 sodium Substances 0.000 claims description 6
- 229910052708 sodium Inorganic materials 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 5
- 229940046892 lead acetate Drugs 0.000 claims description 4
- 238000004513 sizing Methods 0.000 claims description 4
- PGKQTZHDCHKDQK-VOTSOKGWSA-N [(e)-2-phenylethenyl]phosphonic acid Chemical compound OP(O)(=O)\C=C\C1=CC=CC=C1 PGKQTZHDCHKDQK-VOTSOKGWSA-N 0.000 claims description 3
- 239000012190 activator Substances 0.000 claims description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims description 2
- 238000005336 cracking Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 239000000837 restrainer Substances 0.000 claims description 2
- 239000003112 inhibitor Substances 0.000 claims 1
- 238000011084 recovery Methods 0.000 abstract description 14
- 239000000203 mixture Substances 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 230000003213 activating effect Effects 0.000 abstract 1
- 239000013078 crystal Substances 0.000 abstract 1
- 238000009828 non-uniform distribution Methods 0.000 abstract 1
- 238000007873 sieving Methods 0.000 abstract 1
- 238000005728 strengthening Methods 0.000 abstract 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 17
- 239000006260 foam Substances 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 235000019354 vermiculite Nutrition 0.000 description 7
- 229910052902 vermiculite Inorganic materials 0.000 description 6
- 239000010455 vermiculite Substances 0.000 description 6
- 239000004744 fabric Substances 0.000 description 5
- 239000010445 mica Substances 0.000 description 4
- 229910052618 mica group Inorganic materials 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 230000004913 activation Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000003814 drug Substances 0.000 description 2
- 239000000686 essence Substances 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 235000010215 titanium dioxide Nutrition 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 229910052626 biotite Inorganic materials 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- -1 haplotypite Chemical compound 0.000 description 1
- YDZQQRWRVYGNER-UHFFFAOYSA-N iron;titanium;trihydrate Chemical compound O.O.O.[Ti].[Fe] YDZQQRWRVYGNER-UHFFFAOYSA-N 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000011403 purification operation Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention discloses a rutile roughing technology for consisting of selective ore grinding, coarse particle gravity separation and fine particle floatation, belonging to the technical field of mineral processing engineering. According to the characteristics of complex mineral composition of rutile, containing of a large quantity of flaky rocky minerals in raw ore, small crystal size of rutile, non-uniform distribution, remarkable selective grinding phenomenon in an ore grinding process and the like, the technology comprises the following steps of: strengthening selective ore grinding by taking a steel forging as an ore grinding medium; pre-separating and discarding coarse particle tailings with a high-frequency fine sieve; narrowing the particle composition undersize minerals; recovering large-particle rutile by performing gravity separation, wherein rutile in gravity-separated tailings is distributed at a fine particle scale; sieving and discarding coarse-particle tailings; recovering small-particle rutile from minus sieve by suppressing rutile reverse flotation desliming and activating rutile positive floatation; and combining gravity-separated rough concentrate with floated rough concentrate, concentrating and purifying to obtain a high-quality rutile concentrate product. The technology has the characteristics of simple process, low ore dressing cost, high recovery rate, high concentration ratio, and the like.
Description
Technical field
The rutile ore that the present invention relates to a kind of selective milling-coarse grain gravity treatment-fine particles flotation is roughly selected technology, belongs to the Mineral Processing Engineering technical field.
Background technology
Natural rutile is because TiO
2Content is high, impurity is few, is the desirable feedstock of chloride process titanium dioxide powder and titanium sponge.China natural rutile ore deposit 86% belongs to primary ore, mainly is distributed in provinces such as Hubei, Jiangsu, Shanxi, Henan, Shaanxi, Sichuan, Anhui.In recent years, large-scale, super-huge rutile mineral deposit has been found on ground such as mahjong, Shangnan, Shaanxi, Jiangsu Xin Hai, Shanxi Dai County in Henan.So, the development and use of China's natural rutile resource, the development to titanium industries such as China's rutile titanium white, titanium sponges is of great immediate significance.Yet China natural rutile ore deposit belongs to the refractory gold hongshiite, and be characterized in: (1) head grade is lower, contains rutile TiO
2Generally about 2%; (2) general association has sheet mineral such as heavy mineral such as ilmenite, haplotypite, bloodstone, magnetic iron ore and vermiculite, mica, hornblend in the rutile ore; (3) rutile and other mineral embedding cloth relation is complicated, and granularity is generally 0.01～0.2mm and does not wait, and belongs to particulate, the inhomogeneous embedding cloth of microfine, and grain size intervals is big; (4) ore is prone to argillization, often contains a large amount of primary slimes and secondary slime in the ore dressing process; (5) ore often contains the impurity element such as sulphur, phosphorus of influential rutile concentrate quality; (5) in the rutile mineral, generally contain impurity components such as the Fe that exists with class matter same form, Si, Ca, ore dressing is difficult to get rid of.The main cause that China's rutile ore can not get rational exploitation and utilization is: (1) rutile selects that the factory rules and regulations mould is too little, cost is too high; (2) ore-dressing technique is backward, equipment is outmoded; (3) rutile ore comprehensive utilization utilization rate is low; (4) rutile ore sorting technology difficulty is big.
The characteristics of China's rutile ore have determined the ore dressing of rutile will adopt the different combined mineral dressing technologies of forming such as gravity treatment, flotation, magnetic separation, electric separation, chemical mineral processing, just can obtain high-quality rutile concentrate product.So, fundamentally reduce beneficiation cost, improve sorting index, must guarantee that low cost is roughly selected the throwing tail in a large number, then rutile rough concentrate cleaning and Purification under the higher prerequisite of the rutile rate of recovery.It is main technology that rutile rough concentrate cleaning and Purification generally will adopt with the chemical mineral processing, and the space aspect the reduction beneficiation cost is little, so the key of rutile separation process is to roughly select the throwing tail.
The ore dressing of rutile is at present roughly selected and is thrown tail and mainly adopt behind the ore grinding directly gravity treatment to throw tail and roughing flotation throwing tail.Because rutile fine size; And the gangue mineral granularity is thicker, and the medium phenomenon of falling of reuse adoption process seriously causes the rutile loss big, and the rutile fine size; The shaking tables that adopt could obtain separating effect preferably more, have significant limitation and the unit disposal ability of shaking table is low, water consumption is big etc.Roughing flotation is thrown tail and is mainly adopted direct flotation behind the ore grinding, and the rutile ore weathering is serious, contains a large amount of primary slimes, produces a large amount of secondary slimes in the grinding process again, and the existence of a large amount of sludges has worsened flotation effect, and consumes a large amount of medicaments.
Summary of the invention
The rutile that the purpose of this invention is to provide a kind of selective milling-coarse grain gravity treatment-fine particles flotation is roughly selected technology, and the operational characteristic of this technological joining gold hongshiite realizes that the low-cost high target of primary rutile ore roughly selects the throwing tail.Owing to contain sheet mineral such as a large amount of vermiculites, mica, hornblend in the rutile ore; In the grinding process; There is bigger grindability difference between rutile and these sheet mineral; Rutile is enriched in the fine fraction, and sheet mineral such as vermiculite, mica, hornblend are enriched in the coarse fraction, and producing with dissociating property ore grinding is that master's selectivity grinds.Adopt forging as milling medium; Both can protect the particulate rutile only to pulverize, can strengthen again that selectivity grinds between rutile and the sheet mineral, under thicker relatively grinding condition; Promptly improve the rutile liberation degree of minerals, do not grind gangue mineral meticulous again.Adopt the high frequency fine screen screening behind the ore grinding, can the sheet mineral of coarse grain be screened out (can throw tail 10-20%), sieve rutile enrichment has down improved selected grade.After the screening, narrow down during the granularity, help gravity treatment and reclaim the thicker rutile of granularity.Adopt the spiral chute gravity treatment can improve the unit disposal ability and reduce beneficiation cost, the rough concentrate of spiral chute can adopt spiral chute or shaking table further to upgrade once more, and chats is regrinded and the part intergrowth dissociated return gravity treatment.The rutile granularity that is lost in the gravity tailings is thinner, adopts high frequency fine screen again, can sift out gangue mineral thicker in the gravity tailings (20-35%), and the thinner rutile of granularity gets into sieve down, and sieve rutile down adopts flotation to reclaim.The flotation employing elder generation inhibition rutile reverse-floatation mud-removing of the rutile stepped-flotation separation technology of activation rutile direct flotation again can reduce reagent cost, improve sorting index.
The present invention accomplishes according to the following steps:
1, crushing raw ore is sized to suitable ore grinding feed preparation unit size, is limited to 6～15mm on the general particle size after cracking.If fine ore is more in the raw ore, or weathering is serious, can consider to increase the washup operation and tell smitham in advance, avoids overground and reduces the ore grinding amount.
2, behind the crushing raw ore; Feed ore mill and carry out open-circuit grinding; Milling medium selects for use forging to replace steel ball to strengthen the selectivity of ore grinding; Rutile and gangue mineral are ground along dissociating property of mineral faying face as far as possible, improve the monomer of rutile and separate granularity, and avoid the overground phenomenon of rutile and gangue mineral to produce as far as possible.The diameter of general forging is 40～60mm.
3, the ore mill ore pulp of discharging adopts the high frequency fine screen screening, and the gravel and the sheet gangue mineral of the awkward mill of oversize can be used as that mine tailing is abandoned or comprehensively reclaim accessory substances such as wherein vermiculite, mica.Rutile is enriched in the undersized product, and screening back granularmetric composition narrows down, and helps gravity treatment.
4, the gravity treatment employing is master's a gravity separation technology with the big spiral chute of disposal ability; Carry out gravity treatment and reclaim granularity thicker rutile relatively; Concentrate adopts spiral chute selected 2～3 times or obtain gravity treatment rutile rough concentrate for 1 time with table concentration again after the spiral chute gravity treatment; The gravity treatment chats is regrinded and is returned the gravity treatment flow process and select, and what lose in the gravity tailings is the particulate rutile, can sift out the thicker gangue mineral of granularity so adopt high frequency fine screen to sieve once more; Down rutile enrichment of sieve, dewatering to pulp density is to feed flotation operation at 20～30% o'clock.
5, the sieve aperture of high frequency fine screen is 0.3～1mm for the first time, and the sieve aperture of high frequency fine screen is 0.074～0.1mm for the second time; High frequency fine screen can be thrown tail and account for 10～20% of original feed for the first time, and high frequency fine screen can be thrown tail and account for 20～35% of original feed for the second time.Twice screening can be thrown tail and accounted for 30～55% of raw ore.
6, adding the sodium carbonate adjust pH under the sieve of high frequency fine screen screening for the second time is 7～8, adds aluminum sulfate 600～800g/t and suppresses rutile, adds the collecting agent of enuatrol 30～50g/t as silicate gangue mineral, and adds 2
#Oil 20g/t carries out 2～3 deslimings of reverse flotation after sizing mixing.Behind the reverse flotation; Adding the sodium carbonate adjust pH is 8.5; Add gangue mineral composite restrainer prodan 300～500g/t and carboxymethyl cellulose 100～300g/t, add rutile activator plumbi nitras (or lead acetate) 200～400g/t, add rutile combined capturing and collecting agent hydroximic acid sodium 300～500g/t and benzyl arsenic acid (or styryl phosphonic acid) 200～400g/t; Carry out the rutile direct flotation after sizing mixing, carry out the selected flotation rutile rough concentrate that obtains behind the direct flotation 2～3 times.
7, raw ore is the rutile ore that contains rutile about 2%, and through above step, both gravity treatment obtained gravity treatment rutile rough concentrate under selective milling, high frequency fine screen screening throwing tail, the sieve; The gravity treatment chats is regrinded and is returned choosing again; Gravity tailings sieves the throwing tail once more, and rutile suppresses the rutile reverse-floatation mud-removing earlier to sieve down, activation rutile direct flotation obtains flotation rutile rough concentrate again, and the mixed crude concentrate grade that gravity treatment, flotation obtain reaches 48～52%; The rate of recovery is 80～83%; Throw tail more than 95%, only account for the raw ore productive rate and get into the cleaning and Purification operation, greatly reduce beneficiation cost less than 5% rough concentrate.
The advantage and the good effect that have than the present invention with technique known:
(1) the present invention adopts forging to strengthen selective milling as milling medium in grinding process, realizes dissociating property ore grinding, under thicker mog condition, lets rutile monomer dissociation as far as possible, and does not grind gangue mineral too thin; Particle size differences between gangue mineral and the rutile is big, adopts the high frequency fine screen screening, can effectively abandon the coarse grain gangue mineral, makes rutile enrichment under sieve, and particle size range narrows down, and helps improving the gravity treatment index of rutile.It is to realize this technological important support point that selective milling, dusting cover are thrown tail.
(2) the spiral chute gravity treatment helps reclaiming granularity thicker rutile relatively; The thinner rutile of granularity is lost in the gravity tailings; Screening for the second time, oversize is a coarse grain gangue mineral in the gravity tailings, the enrichment under sieve of particulate rutile; Screening is for the second time thrown tail and has been reduced the ore deposit amount that gets into flotation, has reduced the beneficiation cost of flotation.The spiral chute gravity treatment obtains rough concentrate, and the gravity tailings screening makes the enrichment of particulate rutile, is another important support point of realizing this technology.
(3) rutile adopts inhibition rutile reverse-floatation mud-removing under the sieve; When further throwing tail and reduce the interference of sludge to the rutile flotation; Reduced the consumption of medicament; Having created advantage for activation rutile direct flotation, improved the flotation sorting index and reduced beneficiation cost, is another important support point of realizing this technology.
(4) present technique is compared with technique known, adopts forging to strengthen selective milling, and tail is thrown in screening; Undersize degree composition narrows down and is beneficial to gravity treatment recovery coarse grain rutile, and rutile still is distributed in fine fraction in the gravity tailings, and tail is thrown in screening once more; The following reverse-floatation mud-removing of sieve is the direct flotation rutile again, and this technology makes full use of the difference on rutile and the gangue mineral granularity, and the uneven characteristics of rutile size distribution realize coarse grain gravity treatment, fine particles flotation; Gravity treatment and flotation realization combining are had complementary advantages, and technology is simple, this technology and the known compared with techniques of roughly selecting; The rutile concentration ratio is high, the rate of recovery is high, and it is high to throw the tail productive rate, can reduce the beneficiation cost of rutile greatly.
Description of drawings
Fig. 1 is a process chart of the present invention.
The specific embodiment
Embodiment 1:
The Shaanxi rutile ore contains rutile TiO
21.98%, gangue mineral is mainly vermiculite and hydromica class, hornblend etc., also contains a small amount of iron-bearing mineral magnetic iron ore, bloodstone and clay mineral.The rutile disseminated grain size is thin; General 0.01～0.1mm does not wait; Belong to particulate, the inhomogeneous embedding cloth of microfine; Most rutile are interrupted striped, streak arrangement with monomer, aggregate form along the schistosity direction of ore, and mixing with vermiculite, hydromica of having generates agglomerate, and what have is wrapped up by hornblend, biotite.Because the raw ore weathering is serious, raw ore employing double-deck screen shale shaker (upper strata sieve aperture 45mm, the sieve aperture 6mm of lower floor) is increased setting-out and is carried out washup; The oversize merging is crushed to 15mm, and screenings adopts the spiral classifier classification, and partition size is 0.2mm; Sand return and crushed product merge the entering ore grinding, and the forging diameter is 40mm, overflow and the screening of ore milling product merging carrying out high frequency fine screen; Sieve aperture is 0.2mm, and productive rate is 13.50% on the sieve, contains rutile TiO
20.23%, can reclaim vermiculite on the sieve.Undersized product feeds spiral chute one thick three smart gravity treatment, chats and regrinds and return the gravity treatment flow process and select, and obtaining spiral chute gravity treatment rough concentrate productive rate is 1.37%, and grade is 51.34%, and the rate of recovery is 35.53%.Gravity tailings feeds high frequency fine screen screening for the second time, and sieve aperture is 0.074mm, and sieve upthrow tail productive rate is 26.43%, contains rutile TiO
20.26%.Sieve rutile down dewaters to pulp density 26.04%, and adding the sodium carbonate adjust pH is 8, adds aluminum sulfate 800g/t, adds enuatrol 50g/t, adds 2
#Oil 20g/t carries out reverse flotation 3 times, and the foam productive rate of three reverse flotations is 34.21%, contains rutile TiO
20.42%.Behind the reverse flotation, adding the sodium carbonate adjust pH is 8.5, adds prodan 400g/t and carboxymethyl cellulose 200g/t; Add plumbi nitras 300g/t, add hydroximic acid sodium 350g/t and benzyl arsenic acid 300g/t, carry out the direct flotation rutile and roughly select; Rougher tailings is scanned once, and froth pulp returns to be roughly selected; Roughly select foam carry out twice selected, selected foam is the rutile rough concentrate, chats return in proper order form closed circuit.Promptly through above three reverse flotations, the closed circuit direct flotation of slightly sweep, twice is selected, can obtain productive rate is 2.03%, and grade is 47.23%, and the rate of recovery is 48.43% rutile flotation rough concentrate, and direct flotation is thrown tail 22.46%, contains rutile TiO
20.33%.The rutile of selective milling-coarse grain gravity treatment-fine particles flotation is roughly selected technology; Obtaining grade is 48.88%, and the rate of recovery is 83.96% rutile mixed crude concentrate, throws tail 96.60% altogether; The rough concentrate entering that only accounts for raw ore 3.40% is selected, greatly reduces beneficiation cost.
Embodiment 2:
The Henan rutile ore contains rutile TiO
22.09%, the rutile disseminated grain size is thin, and general 0.01～0.2mm does not wait, and belongs to particulate, the inhomogeneous embedding cloth of microfine, the awkward rutile ore that selects.Raw ore is fed ore grinding through crushing and screening to 12mm, and milling medium forging diameter is 40mm, and ore milling product is given to the high frequency fine screen screening, and sieve aperture is 0.15mm, and sieve upthrow tail productive rate is 12.87%, contains rutile TiO
20.31%.Screenings feeds spiral chute one thick three essences, chats is regrinded and returned choosing again, and obtaining spiral chute gravity treatment rough concentrate productive rate is 1.45%, and grade is 49.80%, and the rate of recovery is 34.52%.Gravity tailings feeds high frequency fine screen screening for the second time, and sieve aperture is 0.1mm, and sieve upthrow tail productive rate is 23.14%, contains rutile TiO
20.28%.Dewater to pulp density 28.30% under the sieve, adding the sodium carbonate adjust pH is 8, adds aluminum sulfate 700g/t, adds enuatrol 30g/t, adds 2
#Oil 20g/t carries out reverse flotation 3 times, and the foam productive rate of three reverse flotations is 28.76%, contains rutile TiO
20.47%.Behind the reverse flotation, adding the sodium carbonate adjust pH is 8.5, adds prodan 300g/t and carboxymethyl cellulose 300g/t; Add lead acetate 200g/t, add hydroximic acid sodium 500g/t and benzyl arsenic acid 400g/t, carry out the direct flotation rutile and roughly select; Rougher tailings is scanned once, and froth pulp returns to be roughly selected; Roughly select foam carry out twice selected, selected foam is the rutile rough concentrate, chats return in proper order form closed circuit.Promptly through above three reverse flotations, the closed circuit direct flotation of slightly sweep, twice is selected, can obtain productive rate is 2.11%, and grade is 48.90%, and the rate of recovery is 49.32% rutile flotation rough concentrate, and direct flotation is thrown tail 31.67%, contains rutile TiO
20.31%.The rutile of selective milling-coarse grain gravity treatment-fine particles flotation is roughly selected technology; Obtaining grade is 49.27%, and the rate of recovery is 83.84% rutile mixed crude concentrate, throws tail 96.44% altogether; The rough concentrate entering that only accounts for raw ore 3.56% is selected, greatly reduces beneficiation cost.
Embodiment 3:
The Henan rutile ore contains rutile TiO
22.10%, the rutile disseminated grain size is thin, and general 0.01～0.2mm does not wait, and belongs to particulate, the inhomogeneous embedding cloth of microfine, the awkward rutile ore that selects.Raw ore is fed ore grinding through crushing and screening to 12mm, and milling medium forging diameter is 60mm, and ore milling product is given to the high frequency fine screen screening, and sieve aperture is 0.3mm, and sieve upthrow tail productive rate is 13.87%, contains rutile TiO
20.25%.Screenings feeds spiral chute one thick three essences, chats is regrinded and returned choosing again, and obtaining spiral chute gravity treatment rough concentrate productive rate is 1.40%, and grade is 50.80%, and the rate of recovery is 35.12%.Gravity tailings feeds high frequency fine screen screening for the second time, and sieve aperture is 0.09mm, and sieve upthrow tail productive rate is 24.14%, contains rutile TiO
20.27%.Dewater to pulp density 27.30% under the sieve, adding the sodium carbonate adjust pH is 7, adds aluminum sulfate 600g/t, adds enuatrol 40g/t, adds 2
#Oil 20g/t carries out reverse flotation 3 times, and the foam productive rate of three reverse flotations is 30.76%, contains rutile TiO
20.45%.Behind the reverse flotation, adding the sodium carbonate adjust pH is 8.5, adds prodan 500g/t and carboxymethyl cellulose 100g/t; Add plumbi nitras 400g/t, add hydroximic acid sodium 300g/t and benzyl arsenic acid 200g/t, carry out the direct flotation rutile and roughly select; Rougher tailings is scanned once, and froth pulp returns to be roughly selected; Roughly select foam carry out twice selected, selected foam is the rutile rough concentrate, chats return in proper order form closed circuit.Promptly through above three reverse flotations, the closed circuit direct flotation of slightly sweep, twice is selected, can obtain productive rate is 2.08%, and grade is 48.10%, and the rate of recovery is 48.92% rutile flotation rough concentrate, and direct flotation is thrown tail 29.67%, contains rutile TiO
20.32%.The rutile of selective milling-coarse grain gravity treatment-fine particles flotation is roughly selected technology; Obtaining grade is 49.07%, and the rate of recovery is 83.89% rutile mixed crude concentrate, throws tail 96.54% altogether; The rough concentrate entering that only accounts for raw ore 3.50% is selected, greatly reduces beneficiation cost.
Claims (6)
1. the rutile of selective milling-coarse grain gravity treatment-fine particles flotation is roughly selected technology, it is characterized in that accomplishing according to the following steps:
(1) crushing raw ore is sized to suitable ore grinding feed preparation unit size, is limited to 6～15mm on the particle size after cracking;
(2) behind the crushing raw ore, feed ore mill and carry out open-circuit grinding;
(3) ore pulp of ore mill discharge carries out high frequency fine screen screening, the coarse grain gangue mineral of skimming;
(4) sieve down the employing spiral chute carry out gravity treatment, reclaim granularity thicker rutile relatively, concentrate adopts spiral chute selected 2～3 times or with table concentration 1 time again after the gravity treatment; Obtain gravity treatment rutile rough concentrate; The chats that produces in the reuse adoption process is regrinded and is returned the gravity treatment flow process and select, and mine tailing carries out the high frequency fine screen screening second time once more after the gravity treatment, abandons the thicker gangue mineral of granularity once more; Down rutile enrichment of sieve, dewatering to pulp density is to get into flotation operation at 20～30% o'clock;
(5) sieve of high frequency fine screen screening for the second time adopts sodium carbonate to regulate the pH value down, adds aluminum sulfate and suppresses rutile, uses the enuatrol reverse-floatation mud-removing; Behind the reverse-floatation mud-removing; Add gangue mineral inhibitor prodan and carboxymethyl cellulose, combination suppresses gangue mineral, adopts plumbi nitras or lead acetate to make the rutile activator; Employing is main collecting agent with hydroximic acid sodium; With benzyl arsenic acid or styryl phosphonic acid is supplementary catching agent, and the direct flotation rutile carries out the selected flotation rutile rough concentrate that obtains 2～3 times behind the direct flotation.
2. the rutile of selective milling according to claim 1-coarse grain gravity treatment-fine particles flotation is roughly selected technology, it is characterized in that raw ore is the ore that contains rutile 1%～10%.
3. the rutile of selective milling according to claim 1-coarse grain gravity treatment-fine particles flotation is roughly selected technology, it is characterized in that the raw ore milling medium selects forging for use, and the diameter of forging is 40～60mm.
4. the rutile of selective milling according to claim 1-coarse grain gravity treatment-fine particles flotation is roughly selected technology, it is characterized in that if fine ore is more in the raw ore, or weathering increases the washup operation when serious, tells smitham in advance.
5. the rutile of selective milling according to claim 1-coarse grain gravity treatment-fine particles flotation is roughly selected technology, it is characterized in that the sieve aperture of high frequency fine screen is 0.3～1mm for the first time, and the sieve aperture of high frequency fine screen is 0.074～0.1mm for the second time.
6. the rutile of selective milling according to claim 1-coarse grain gravity treatment-fine particles flotation is roughly selected technology; The following adding of the sieve sodium carbonate adjust pH that it is characterized in that high frequency fine screen screening for the second time is 7～8; Add aluminum sulfate 600～800g/t and suppress rutile; Add the collecting agent of enuatrol 30～50g/t, and add 2 as silicate gangue mineral
#Oil 20g/t carries out 2～3 deslimings of reverse flotation after sizing mixing; Behind the reverse flotation; Using the sodium carbonate adjust pH is 8.5; Add gangue mineral composite restrainer prodan 300～500g/t and carboxymethyl cellulose 100～300g/t, add rutile activator plumbi nitras or lead acetate 200～400g/t, add rutile combined capturing and collecting agent hydroximic acid sodium 300～500g/t and benzyl arsenic acid or styryl phosphonic acid 200～400g/t; Carry out the rutile direct flotation after sizing mixing, carry out the selected flotation rutile rough concentrate that obtains behind the direct flotation 2～3 times.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103586124A (en) * | 2013-11-26 | 2014-02-19 | 中南大学 | Rutile beneficiation method comprising magnetic separation, tailing discarding reselection. desliming and fine particle floatation |
| CN106733214A (en) * | 2016-12-07 | 2017-05-31 | 广西大学 | A kind of preparation method of rutile collecting agent |
| CN106994387A (en) * | 2017-05-05 | 2017-08-01 | 深圳市中金岭南科技有限公司 | A kind of many secondary clearings, point reselecting method with screening |
| CN107115961A (en) * | 2017-05-05 | 2017-09-01 | 深圳市中金岭南科技有限公司 | A kind of low-grade, particulate down cloth mineral reselecting method |
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| CN111437999A (en) * | 2020-04-29 | 2020-07-24 | 海南文盛新材料科技股份有限公司 | Mineral separation process for improving rutile electric separation efficiency based on microwave pretreatment |
| CN111437989A (en) * | 2020-03-12 | 2020-07-24 | 中国地质科学院郑州矿产综合利用研究所 | Method for recovering rutile in durite-hectorite product |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4158041A (en) * | 1978-02-21 | 1979-06-12 | Uop Inc. | Separation of ilmenite and rutile |
| CN1943869A (en) * | 2006-10-19 | 2007-04-11 | 华锡集团车河选矿厂 | Step branched ore milling and milling and dressing circular new technology |
| CA2548006A1 (en) * | 2006-05-25 | 2007-11-25 | Titanium Corporation Inc. | Process for recovering heavy minerals from oil sand tailings |
| CN101607230A (en) * | 2009-07-02 | 2009-12-23 | 昆明理工大学 | Method for roughing and tailings-discarding of fine rutile ore by multi-stage floatation |
-
2011
- 2011-10-19 CN CN201110318086.9A patent/CN102500462B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4158041A (en) * | 1978-02-21 | 1979-06-12 | Uop Inc. | Separation of ilmenite and rutile |
| CA2548006A1 (en) * | 2006-05-25 | 2007-11-25 | Titanium Corporation Inc. | Process for recovering heavy minerals from oil sand tailings |
| CN1943869A (en) * | 2006-10-19 | 2007-04-11 | 华锡集团车河选矿厂 | Step branched ore milling and milling and dressing circular new technology |
| CN101607230A (en) * | 2009-07-02 | 2009-12-23 | 昆明理工大学 | Method for roughing and tailings-discarding of fine rutile ore by multi-stage floatation |
Non-Patent Citations (2)
| Title |
|---|
| 岳铁兵等: "细粒金红石矿重选抛尾工艺研究", 《化工矿物与加工》, no. 1, 15 January 2005 (2005-01-15) * |
| 彭会清等: "螺旋溜槽的研究现状及展望", 《江西有色金属》, vol. 23, no. 3, 30 September 2009 (2009-09-30) * |
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| CN111871618A (en) * | 2019-11-14 | 2020-11-03 | 广州城建职业学院 | Method for removing titanium minerals in high-sulfur bauxite |
| CN111871618B (en) * | 2019-11-14 | 2022-08-05 | 广州城建职业学院 | Method for removing titanium minerals in high-sulfur bauxite |
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