CN109225653A - A kind of beneficiation method of high phosphorus hematite-limonite stone dephosphorization - Google Patents
A kind of beneficiation method of high phosphorus hematite-limonite stone dephosphorization Download PDFInfo
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- CN109225653A CN109225653A CN201810795423.5A CN201810795423A CN109225653A CN 109225653 A CN109225653 A CN 109225653A CN 201810795423 A CN201810795423 A CN 201810795423A CN 109225653 A CN109225653 A CN 109225653A
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- 239000011574 phosphorus Substances 0.000 title claims abstract description 71
- 229910052698 phosphorus Inorganic materials 0.000 title claims abstract description 71
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 238000000034 method Methods 0.000 title claims abstract description 34
- 239000004575 stone Substances 0.000 title claims abstract description 22
- 239000003112 inhibitor Substances 0.000 claims abstract description 43
- 239000000203 mixture Substances 0.000 claims abstract description 40
- 239000006260 foam Substances 0.000 claims abstract description 38
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 36
- 239000004115 Sodium Silicate Substances 0.000 claims abstract description 19
- 235000019795 sodium metasilicate Nutrition 0.000 claims abstract description 19
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052911 sodium silicate Inorganic materials 0.000 claims abstract description 19
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 18
- 238000000227 grinding Methods 0.000 claims abstract description 15
- 239000002994 raw material Substances 0.000 claims abstract description 14
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 11
- 239000011707 mineral Substances 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims abstract description 10
- 238000003801 milling Methods 0.000 claims abstract description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 104
- 238000003756 stirring Methods 0.000 claims description 53
- 229910052742 iron Inorganic materials 0.000 claims description 49
- 239000000463 material Substances 0.000 claims description 13
- YFMPSMITLLBENU-UHFFFAOYSA-N 3,4-dihydroxybenzylamine Chemical compound NCC1=CC=C(O)C(O)=C1 YFMPSMITLLBENU-UHFFFAOYSA-N 0.000 claims description 5
- DTOSIQBPPRVQHS-PDBXOOCHSA-N alpha-linolenic acid Chemical compound CC\C=C/C\C=C/C\C=C/CCCCCCCC(O)=O DTOSIQBPPRVQHS-PDBXOOCHSA-N 0.000 claims description 5
- 235000020661 alpha-linolenic acid Nutrition 0.000 claims description 5
- YDEXUEFDPVHGHE-GGMCWBHBSA-L disodium;(2r)-3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Na+].[Na+].COC1=CC=CC(C[C@H](CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O YDEXUEFDPVHGHE-GGMCWBHBSA-L 0.000 claims description 5
- 229960004488 linolenic acid Drugs 0.000 claims description 5
- KQQKGWQCNNTQJW-UHFFFAOYSA-N linolenic acid Natural products CC=CCCC=CCC=CCCCCCCCC(O)=O KQQKGWQCNNTQJW-UHFFFAOYSA-N 0.000 claims description 5
- FATBGEAMYMYZAF-KTKRTIGZSA-N oleamide Chemical compound CCCCCCCC\C=C/CCCCCCCC(N)=O FATBGEAMYMYZAF-KTKRTIGZSA-N 0.000 claims description 5
- FATBGEAMYMYZAF-UHFFFAOYSA-N oleicacidamide-heptaglycolether Natural products CCCCCCCCC=CCCCCCCCC(N)=O FATBGEAMYMYZAF-UHFFFAOYSA-N 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 101001131990 Homo sapiens Peroxidasin homolog Proteins 0.000 claims description 2
- 102100034601 Peroxidasin homolog Human genes 0.000 claims description 2
- 238000009955 starching Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 229920002472 Starch Polymers 0.000 description 15
- 239000003795 chemical substances by application Substances 0.000 description 15
- 239000008107 starch Substances 0.000 description 15
- 235000019698 starch Nutrition 0.000 description 15
- 230000000052 comparative effect Effects 0.000 description 12
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 10
- 238000011084 recovery Methods 0.000 description 10
- 238000004458 analytical method Methods 0.000 description 9
- 229910052729 chemical element Inorganic materials 0.000 description 6
- 229910001608 iron mineral Inorganic materials 0.000 description 6
- 229910052585 phosphate mineral Inorganic materials 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 239000012188 paraffin wax Substances 0.000 description 4
- 239000000344 soap Substances 0.000 description 4
- 239000003784 tall oil Substances 0.000 description 4
- 238000003723 Smelting Methods 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 3
- 235000014113 dietary fatty acids Nutrition 0.000 description 3
- 239000000194 fatty acid Substances 0.000 description 3
- 229930195729 fatty acid Natural products 0.000 description 3
- 150000004665 fatty acids Chemical class 0.000 description 3
- 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 3
- 239000007788 liquid Substances 0.000 description 3
- 238000007885 magnetic separation Methods 0.000 description 3
- VSIIXMUUUJUKCM-UHFFFAOYSA-D pentacalcium;fluoride;triphosphate Chemical compound [F-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O VSIIXMUUUJUKCM-UHFFFAOYSA-D 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 101100536251 Mus musculus Tmem120a gene Proteins 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 229910052586 apatite Inorganic materials 0.000 description 2
- 229910052595 hematite Inorganic materials 0.000 description 2
- 239000011019 hematite Substances 0.000 description 2
- 238000005272 metallurgy Methods 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 238000000053 physical method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 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 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 229910000805 Pig iron Inorganic materials 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
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 229910052587 fluorapatite Inorganic materials 0.000 description 1
- 229940077441 fluorapatite Drugs 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000007269 microbial metabolism Effects 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 230000031068 symbiosis, encompassing mutualism through parasitism Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/02—Froth-flotation processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/004—Organic compounds
- B03D1/01—Organic compounds containing nitrogen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/004—Organic compounds
- B03D1/012—Organic compounds containing sulfur
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/02—Collectors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/06—Depressants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2203/00—Specified materials treated by the flotation agents; specified applications
- B03D2203/02—Ores
- B03D2203/04—Non-sulfide ores
Abstract
The present invention relates to a kind of beneficiation methods of high phosphorus hematite-limonite stone dephosphorization, belong to Mineral Processing Engineering technical field.By high phosphorus hematite-limonite stone raw material, broken, ore grinding obtains ore grinding production；Obtained ore milling product is sized mixing, sodium carbonate is added, sodium metasilicate, novel compositions inhibitor, hybrid collector MG is then added, carries out roughing, 4~8min of bubble is scraped in inflation, the underflow after obtaining roughing high phosphorus foam and roughing；Underflow after obtained roughing is added into sodium carbonate, sodium metasilicate, novel compositions inhibitor, hybrid collector MG is then added, is scanned, 5~8min of bubble is scraped in inflation, is obtained scanning high phosphorus foam and is scanned underflow for the first time；Obtained first time is scanned into underflow and adds sodium carbonate, sodium metasilicate, novel compositions inhibitor, hybrid collector MG is then added, carry out it is secondary scans, 3~6min of bubble is scraped in inflation, obtains secondary scanning product in foam and slot.This method low cost and easy to operate simplicity realize that phosphorus ore containing effectively removes.
Description
Technical field
The present invention relates to a kind of beneficiation methods of high phosphorus hematite-limonite stone dephosphorization, belong to Mineral Processing Engineering technical field.
Background technique
High phosphorus hematite-limonite stone is based on appositional pattern iron ore, and phosphorus is mainly with apatite or carbonate fluorapatite shape in iron ore
State and other mineral densification symbiosis.Since apatite disseminated grain size is superfine, and part is mixed into isomorph and superfine machinery
The form of object is present among carrier mineral hematite-limonite, this causes difficulty to ore dressing dephosphorization.High phosphorus hematite-limonite stone dephosphorization one
It is directly the hot issue that ore dressing field does not solve at all.
Appositional pattern hematite-limonite ore has the characteristics that the low sulphur ﹑ iron content of high phosphorus ﹑ high silicon ﹑ is poor.The general iron content of ore be 35~
55wt%, phosphorous 0.5~0.9wt%, part are phosphorous more than 1.0wt%.Phosphorus is one of most important objectionable impurities elements in iron ore,
If high-phosphorus iron ore, without dephosphorization and directly as iron-smelting raw material, the pig iron will cannot be made because phosphorous high with " cold brittleness "
For qualified steelmaking feed.Due to the above-mentioned harm of phosphorus component, raw materials for metallurgy should be reduced as far as possible in steel smelting procedure
The content of middle phosphorus component.Hematite-limonite stone is after ore dressing and reduction roasting operation, the main Han Jin Shu Tie ﹑ magnet of obtained product
The sintered material of Kuang ﹑ richness phosphorus slag, metallic iron and magnetic iron ore therein can be used as the raw material of ironmaking.But carry out high phosphorus hematite-limonite always
Shi Yin does not have the dephosphorization technique of reasonable and this part iron resource is made to fail effectively to be developed and used.
Well known hematite-limonite dephosphorization technique, including physical method, chemical method, metallurgy method and microbial method.Wherein most
The most commonly used is physical methods.This generally requires then to use magnetic method or floatation after finely ground ore sufficiently dissociates to iron mineral
It is sorted.The problems such as generally existing dephosphorization rate of magnetic method dephosphorization is low, and iron recovery is low sorts the micro-size fraction after fine grinding
Material, this problem will be especially prominent.Floatation dephosphorization usually under alkaline condition, is realized with fatty acid collecting agent and contains phosphorus ore
The removing of object.For the selectivity for enhancing reverse flotation dephosphorization, sodium metasilicate, calgon, carboxylic first are added usually in ore pulp solution
The medicaments such as base cellulose do dispersing agent, and addition starch makees the inhibitor of iron mineral.But traditional fatty acid collecting agent is generally deposited
It is poor in dissolubility, the problems such as poor selectivity.In addition, the usage amount of starch is big, the solubility of starch in water is not high under room temperature.Cause
This traditional physical upgrading method is extremely difficult to satisfactory effect.Chemical method dephosphorization is exactly with nitric acid, sulfuric acid or hydrochloric acid
Acidleach is carried out to ore, this method dephosphorization rate is high, and of less demanding to iron mineral cleavage degree, but chemical method acid consumption is big, cost
Height, and the iron mineral of some solubilities is dissolved, cause the loss of iron.Microbial method dephosphorization, it is main to be produced by microbial metabolism
The pH value of sour reduction system, dissolves Phosphate minerals, while metabolic acid and Ca, Mg, Al plasma form complex compound, to promote phosphorus
The dissolution of mineral.But due to some Technological Economies, research achievement is actually rare in the industrial production.
Application No. is a kind of 200610019950.4 production methods of high-phosphor oolitic hematite dephosphorus iron extraction, are to high phosphorus roe
Shape bloodstone is reduced directly to obtain metallic iron and rich phosphorus slag, obtains qualified iron ore concentrate after low intensity magnetic separation, low intensity magnetic separation index it is good
It is bad to depend on the degree that iron is separated with slag in direct-reduction operation, thus have stringent limitation to the property of feed stock for blast furnace, simultaneously
High-temperature operation makes processing cost higher.
Iron method for reducing phosphorus is mentioned application No. is 200810163393.2 roe shape high-phosphorus hematites, application No. is
A kind of 200810058801.8 high-phosphorus hematite hematite-limonite magnetizing roast-leaching method for reducing phosphorus, i.e., to high phosphorus hematite-limonite into
Row reduction roasting changes the occurrence status of iron, makes a degree of agglomeration of iron mineral crystal, is taken off in advance using low intensity magnetic separation
Phosphorus mentions iron, then carries out acidleach drop phosphorus to magnetic concentrate to obtain qualified iron ore concentrate, and this method process is complicated, and processing cost is high, acid
Soaking acid consumption in operation, greatly, metal loss is also than more serious while phosphorus removes.
Based on the above technology status, the utilization rate of high phosphorus hematite-limonite stone is extremely low at present, ideal due to not developing
Method for reducing phosphorus and prevent this part resource from effectively utilizing.Iron Ore Market price is in soaring trend in recent years, gives China
Iron and steel enterprise brings serious impact, if a kind of effective beneficiation method can be used, phosphorus in hematite-limonite stone can be greatly lowered
Content, to obtain low-phosphorous iron-smelting raw material, this will generate good economic benefit and environmental benefit.
Summary of the invention
For the above-mentioned problems of the prior art and deficiency, the present invention provides a kind of choosing of high phosphorus hematite-limonite stone dephosphorization
Mine method.This method low cost and easy to operate simplicity realize that phosphorus ore containing effectively removes.The present invention passes through following technical side
Case is realized.
A kind of beneficiation method of high phosphorus hematite-limonite stone dephosphorization, the specific steps of which are as follows:
Step 1, by high phosphorus hematite-limonite stone raw material, the mineral aggregate content of broken, ore grinding to -74 μm accounts for 75~95% and obtains ore grinding and produces
Product, wherein ore grinding mass concentration is 55wt%~65wt%；
It is 25~35wt% that step 2, the ore milling product for obtaining step 1, which are sized mixing to solid masses concentration, and sodium carbonate is added and controls mine
The pH value for starching solution is 8~10, stirs 4~8min, 1000~1600g/t of sodium metasilicate is then added, stir 4~8min, be added
Novel compositions 100~300g/t of inhibitor, 5~15min of stirring, addition hybrid collector MG200~400g/t, stirring 5~
Roughing is carried out after 15min, 4~8min of bubble is scraped in inflation, the underflow after obtaining roughing high phosphorus foam and roughing；
Step 3, the pH value that the underflow after roughing that step 2 obtains is added to sodium carbonate control ore pulp solution are 8~10, stirring 3~
500~800g/t of sodium metasilicate and novel compositions 100~200g/t of inhibitor is added in 6min, stirs 5~15min, hybrid collector
MG100~200g/t is scanned after stirring 5~15min, and 5~8min of bubble is scraped in inflation, obtains scanning high phosphorus foam and first time
Scan underflow；
Step 4, the first time for obtaining step 3 scan underflow and the pH value of sodium carbonate control ore pulp solution are added to be 8~10, stirring 4
200~400 g/t of sodium metasilicate is added in~8min, stirs 4~8min, and 50~100g/t of novel compositions inhibitor, stirring 5 is added
~15min, hybrid collector MG50~100g/t, stir 5~15 min after carry out it is secondary scan, inflation scrape 3~6 min of bubble,
It obtains secondary scanning product in foam and slot；High phosphorus foam is scanned by what roughing high phosphorus foam that step 2 obtains, step 3 obtained
The secondary foam of scanning obtained with step 4 merges to obtain high phosphorus foam, and product is final iron ore material in obtained slot；
Novel compositions inhibitor is the sodium lignin sulfonate and 3,4- dihydroxy benzylamine of 3~5 ﹕ 1 of molar ratio in above-mentioned steps 2,3,4
The mixture of composition；The oleamide and linolenic acid that hybrid collector MG is 5 ﹕ 1 of molar ratio in above-mentioned steps 2,3,4 form mixed
Close object.
Above-mentioned g/t refers to that the grams of reagent is added in high phosphorus hematite-limonite stone raw material per ton.
The beneficial effects of the present invention are:
1, compared with traditional iron mineral inhibitor, the dosage of novel compositions inhibitor is few, and solubility is good, sulfomethylated lignin
Sour sodium and 3 contains amino and multiple hydroxyls in 4- dihydroxy benzylamine, can effectively inhibit Iron Oxide Minerals.
2, preferably, compared with single fatty acid collecting agent, addition is few for the solubility of hybrid collector MG and selectivity
The hybrid collector MG of amount can realize effective removing of content Phosphate minerals, overcome iron loss rate present in floatation dephosphorization
Greatly, the problems such as dephosphorization rate is low.
3, process of the present invention is short, at low cost, easy to operate, promotional value with higher, for other intractable height
Ferrophosphorus ore resource makes full use of with certain directive significance.
Detailed description of the invention
Fig. 1 is process flow chart of the invention.
Specific embodiment
With reference to the accompanying drawings and detailed description, the invention will be further described.
Embodiment 1
As shown in Figure 1, the beneficiation method of the high phosphorus hematite-limonite stone dephosphorization, the specific steps of which are as follows:
Step 1, by high phosphorus hematite-limonite stone raw material, (raw material comes from Iron Ore in Yunnan Province, and this area's oxide ore is phosphorous relatively high, raw ore
Main chemical elements analysis and Fe clusters analysis result are shown in Tables 1 and 2 respectively) the mineral aggregate content of broken, ore grinding to -74 μm accounts for
75% obtains ore milling product, and wherein ore grinding mass concentration is 60wt%；
1 raw ore main chemical elements of table analysis and
2 raw ore Fe clusters of table analyze result
It is 25wt% that step 2, the ore milling product for obtaining step 1, which are sized mixing to solid masses concentration, and it is molten that sodium carbonate control ore pulp is added
The pH value of liquid is 8, stirs 4min, and sodium metasilicate 1600g/t is then added, and stirs 6min, and novel compositions inhibitor 200g/t is added,
8min is stirred, hybrid collector MG200g/t is added, carries out roughing after stirring 8min, inflation scrapes bubble 6min, obtains roughing high phosphorus
Underflow after foam and roughing；
Step 3, the pH value that the underflow after roughing that step 2 obtains is added to sodium carbonate control ore pulp solution are 8, stir 3min, add
Enter sodium metasilicate 800g/t and novel compositions inhibitor 100g/t, stir 6min, hybrid collector MG100g/t, stirring 6min is laggard
Row is scanned, and bubble 5min is scraped in inflation, is obtained scanning high phosphorus foam and is scanned underflow for the first time；
Step 4, the first time for obtaining step 3 scan underflow and the pH value of sodium carbonate control ore pulp solution are added to be 8, stir 4min,
400 g/t of sodium metasilicate is added, stirs 4min, novel compositions inhibitor 50g/t is added, stirs 5min, hybrid collector MG50g/
T, stir carry out after 5min it is secondary scan, bubble 4min is scraped in inflation, obtains secondary scanning product in foam and slot；Step 2 is obtained
Roughing high phosphorus foam, step 3 obtain scan high phosphorus foam and secondary foam of scanning that step 4 obtains merges to obtain high phosphorus bubble
Foam, product is final iron ore material in obtained slot；
Novel compositions inhibitor is the sodium lignin sulfonate and 3,4- dihydroxy benzylamine group of 3 ﹕ 1 of molar ratio in above-mentioned steps 2,3,4
At mixture；The mixing of hybrid collector MG is 5 ﹕ 1 of molar ratio in above-mentioned steps 2,3,4 oleamide and linolenic acid composition
Object.
Iron grade is 37.57wt%, phosphorous 0.16wt%, iron recovery 76.85%, dephosphorization in above-mentioned final iron ore material
Rate is 82.5%.
Comparative example 1
Using conventional starch inhibitor and conventional enuatrol collecting agent replace novel compositions inhibitor in the present embodiment 1 and
Hybrid collector MG；Conventional starch inhibitor additional amount is 600g/t in step 2, and conventional enuatrol additional amount is 400g/
t；Conventional starch inhibitor additional amount in step 3 is 300g/t, and conventional enuatrol collecting agent additional amount is 200g/t；Step
Conventional starch inhibitor additional amount in rapid 4 is 100g/t, and conventional enuatrol collecting agent additional amount is 100g/t, Qi Tacan
Number is constant.It is 38.17wt% that Iron grade is obtained in final iron ore material in comparative example 1, phosphorous 0.25wt%, and iron recovery is
74.12%, dephosphorization rate 74.05%.
It can be seen that novel compositions inhibitor and hybrid collector MG in the present invention from the present embodiment 1 and comparative example 1
Dosage it is few, hybrid collector MG, which is added, in the present invention can realize effective removings of content Phosphate minerals, and iron recovery and dephosphorization rate are all
It is higher than comparative example 1.Production cost of the present invention reduces 12 yuan/ton of raw ores.
Embodiment 2
As shown in Figure 1, the beneficiation method of the high phosphorus hematite-limonite stone dephosphorization, the specific steps of which are as follows:
Step 1, by high phosphorus hematite-limonite stone raw material, (analysis of raw material raw ore main chemical elements and Fe clusters analysis result are shown in respectively
Table 3 and table 4) the mineral aggregate content of broken, ore grinding to -74 μm accounts for 85% and obtains ore milling product, and wherein ore grinding mass concentration is 65wt%；
3 raw ore main chemical elements of table analysis and
4 raw ore Fe clusters of table analyze result
It is 30wt% that step 2, the ore milling product for obtaining step 1, which are sized mixing to solid masses concentration, and it is molten that sodium carbonate control ore pulp is added
The pH value of liquid is 10, stirs 6min, and sodium metasilicate 1400g/t is then added, and stirs 8min, and novel compositions inhibitor 300g/ is added
T stirs 15min, and hybrid collector MG300g/t is added, and carries out roughing after stirring 15min, inflation scrapes bubble 8min, obtains roughing
Underflow after high phosphorus foam and roughing；
Step 3, the pH value that the underflow after roughing that step 2 obtains is added to sodium carbonate control ore pulp solution are 9, stir 4min, add
Enter sodium metasilicate 600g/t and novel compositions inhibitor 200g/t, stir 15min, hybrid collector MG150g/t, after stirring 15min
It is scanned, bubble 8min is scraped in inflation, is obtained scanning high phosphorus foam and is scanned underflow for the first time；
Step 4, the first time for obtaining step 3 scan underflow and the pH value of sodium carbonate control ore pulp solution are added to be 9, stir 6min,
Sodium metasilicate 300g/t is added, stirs 8min, novel compositions inhibitor 100g/t is added, stirs 15min, hybrid collector
MG100g/t, stir carry out after 15min it is secondary scan, bubble 3min is scraped in inflation, obtains secondary scanning product in foam and slot；It will step
What rapid 2 obtained roughing high phosphorus foams, step 3 obtained scan high phosphorus foam and the secondary foam of scanning that step 4 obtains merge
To high phosphorus foam, product is final iron ore material in obtained slot；
Novel compositions inhibitor is the sodium lignin sulfonate and 3,4- dihydroxy benzylamine group of 5 ﹕ 1 of molar ratio in above-mentioned steps 2,3,4
At mixture；The mixing of hybrid collector MG is 5 ﹕ 1 of molar ratio in above-mentioned steps 2,3,4 oleamide and linolenic acid composition
Object.
Iron grade is 47.17wt%, phosphorous 0.24wt%, iron recovery 78.75%, dephosphorization in above-mentioned final iron ore material
Rate is 79.12%.
Comparative example 2
The novel compositions in the present embodiment 2 are replaced using conventional starch inhibitor and conventional oxidized paraffin wax soap collecting agent to inhibit
Agent and hybrid collector MG；Conventional starch inhibitor additional amount is 800g/t, conventional oxidized paraffin wax soap collecting agent in step 2
Additional amount is 800g/t；Conventional starch inhibitor additional amount in step 3 is 400g/t, conventional oxidized paraffin wax soap collecting agent
Additional amount is 400g/t；Conventional starch inhibitor additional amount in step 4 is 200g/t, conventional oxidized paraffin wax soap collecting agent
Additional amount is 200g/t, and other parameters are constant.It is 48.23wt% that Iron grade in final iron ore material is obtained in comparative example 2,
Phosphorous 0.36wt%, iron recovery 75.18%, dephosphorization rate 70.77%.
It can be seen that novel compositions inhibitor and hybrid collector MG in the present invention from the present embodiment 2 and comparative example 2
Dosage it is few, hybrid collector MG, which is added, in the present invention can realize effective removings of content Phosphate minerals, and iron recovery and dephosphorization rate are all
It is higher than comparative example 2.Production cost of the present invention reduces 15 yuan/ton of raw ores.
Embodiment 3
As shown in Figure 1, the beneficiation method of the high phosphorus hematite-limonite stone dephosphorization, the specific steps of which are as follows:
Step 1, by high phosphorus hematite-limonite stone raw material, (analysis of raw material raw ore main chemical elements and Fe clusters analysis result are shown in respectively
Table 5 and table 6) the mineral aggregate content of broken, ore grinding to -74 μm accounts for 95% and obtains ore milling product, and wherein ore grinding mass concentration is 55wt%；
5 raw ore main chemical elements of table analysis and
6 raw ore Fe clusters of table analyze result
It is 35wt% that step 2, the ore milling product for obtaining step 1, which are sized mixing to solid masses concentration, and it is molten that sodium carbonate control ore pulp is added
The pH value of liquid is 9, stirs 8min, and sodium metasilicate 1000g/t is then added, and stirs 4min, and novel compositions inhibitor 100g/t is added,
5min is stirred, hybrid collector MG400g/t is added, carries out roughing after stirring 5min, inflation scrapes bubble 4min, obtains roughing high phosphorus
Underflow after foam and roughing；
Step 3, the pH value that the underflow after roughing that step 2 obtains is added to sodium carbonate control ore pulp solution are 10, stir 6min, add
Enter sodium metasilicate 500g/t and novel compositions inhibitor 150g/t, stir 5min, hybrid collector MG200g/t, stirring 5min is laggard
Row is scanned, and bubble 6min is scraped in inflation, is obtained scanning high phosphorus foam and is scanned underflow for the first time；
Step 4, the first time for obtaining step 3 scan underflow and the pH value of sodium carbonate control ore pulp solution are added to be 10, stir 8min,
200 g/t of sodium metasilicate is added, stirs 6min, novel compositions inhibitor 80g/t is added, stirs 10min, hybrid collector MG80g/
T, stir carry out after 10min it is secondary scan, bubble 6min is scraped in inflation, obtains secondary scanning product in foam and slot；Step 2 is obtained
Roughing high phosphorus foam, step 3 obtain scan high phosphorus foam and secondary foam of scanning that step 4 obtains merges to obtain high phosphorus bubble
Foam, product is final iron ore material in obtained slot；
Novel compositions inhibitor is the sodium lignin sulfonate and 3,4- dihydroxy benzylamine group of 4 ﹕ 1 of molar ratio in above-mentioned steps 2,3,4
At mixture；The mixing of hybrid collector MG is 5 ﹕ 1 of molar ratio in above-mentioned steps 2,3,4 oleamide and linolenic acid composition
Object.
Iron grade is 50.12wt%, phosphorous 0.30wt%, iron recovery 80.45%, dephosphorization in above-mentioned final iron ore material
Rate is 75.61%.
Comparative example 3
Novel compositions inhibitor in the present embodiment 3 is replaced using conventional starch inhibitor and conventional tall oil and mixing is caught
Receive agent MG；Conventional starch inhibitor additional amount is 800g/t in step 2, and conventional tall oil collecting agent additional amount is 800g/
t；Conventional starch inhibitor additional amount in step 3 is 400g/t, and conventional tall oil collecting agent additional amount is 400g/t；Step
Conventional starch inhibitor additional amount in rapid 4 is 200g/t, and conventional tall oil collecting agent additional amount is 200g/t, Qi Tacan
Number is constant.It is 49.52wt% that Iron grade is obtained in final iron ore material in comparative example 3, phosphorous 0.40wt%, and iron recovery is
77.56%, dephosphorization rate 70.13%.
It can be seen that novel compositions inhibitor and hybrid collector MG in the present invention from the present embodiment 3 and comparative example 3
Dosage it is few, hybrid collector MG, which is added, in the present invention can realize effective removings of content Phosphate minerals, and iron recovery and dephosphorization rate are all
It is higher than comparative example 3.Production cost of the present invention reduces 13 yuan/ton of raw ores.
In conjunction with attached drawing, the embodiment of the present invention is explained in detail above, but the present invention is not limited to above-mentioned
Embodiment within the knowledge of a person skilled in the art can also be before not departing from present inventive concept
Put that various changes can be made.
Claims (1)
1. a kind of beneficiation method of high phosphorus hematite-limonite stone dephosphorization, it is characterised in that specific step is as follows:
Step 1, by high phosphorus hematite-limonite stone raw material, the mineral aggregate content of broken, ore grinding to -74 μm accounts for 75~95% and obtains ore grinding and produces
Product, wherein ore grinding mass concentration is 55wt%~65wt%；
It is 25~35wt% that step 2, the ore milling product for obtaining step 1, which are sized mixing to solid masses concentration, and sodium carbonate is added and controls mine
The pH value for starching solution is 8~10, stirs 4~8min, 1000~1600g/t of sodium metasilicate is then added, stir 4~8min, be added
Novel compositions 100~300g/t of inhibitor, 5~15min of stirring, addition hybrid collector MG200~400g/t, stirring 5~
Roughing is carried out after 15min, 4~8min of bubble is scraped in inflation, the underflow after obtaining roughing high phosphorus foam and roughing；
Step 3, the pH value that the underflow after roughing that step 2 obtains is added to sodium carbonate control ore pulp solution are 8~10, stirring 3~
500~800g/t of sodium metasilicate and novel compositions 100~200g/t of inhibitor is added in 6min, stirs 5~15min, hybrid collector
MG100~200g/t is scanned after stirring 5~15min, and 5~8min of bubble is scraped in inflation, obtains scanning high phosphorus foam and first time
Scan underflow；
Step 4, the first time for obtaining step 3 scan underflow and the pH value of sodium carbonate control ore pulp solution are added to be 8~10, stirring 4
200~400 g/t of sodium metasilicate is added in~8min, stirs 4~8min, and 50~100g/t of novel compositions inhibitor, stirring 5 is added
~15min, hybrid collector MG50~100g/t, stir 5~15 min after carry out it is secondary scan, inflation scrape 3~6 min of bubble,
It obtains secondary scanning product in foam and slot；High phosphorus foam is scanned by what roughing high phosphorus foam that step 2 obtains, step 3 obtained
The secondary foam of scanning obtained with step 4 merges to obtain high phosphorus foam, and product is final iron ore material in obtained slot；
Novel compositions inhibitor is the sodium lignin sulfonate and 3,4- dihydroxy benzylamine of 3~5 ﹕ 1 of molar ratio in above-mentioned steps 2,3,4
The mixture of composition；The oleamide and linolenic acid that hybrid collector MG is 5 ﹕ 1 of molar ratio in above-mentioned steps 2,3,4 form mixed
Close object.
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