CN102513203B - Method for recycling high-phosphorus/sulfur siderite resource - Google Patents
Method for recycling high-phosphorus/sulfur siderite resource Download PDFInfo
- Publication number
- CN102513203B CN102513203B CN201110410859.6A CN201110410859A CN102513203B CN 102513203 B CN102513203 B CN 102513203B CN 201110410859 A CN201110410859 A CN 201110410859A CN 102513203 B CN102513203 B CN 102513203B
- Authority
- CN
- China
- Prior art keywords
- grams
- ore
- sulfur
- ton
- phosphorus
- 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.)
- Expired - Fee Related
Links
- 229910021646 siderite Inorganic materials 0.000 title claims abstract description 39
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 31
- 239000011593 sulfur Substances 0.000 title claims abstract description 26
- 229910052717 sulfur Inorganic materials 0.000 title claims abstract description 26
- 239000011574 phosphorus Substances 0.000 title claims abstract description 20
- 229910052698 phosphorus Inorganic materials 0.000 title claims abstract description 20
- 238000004064 recycling Methods 0.000 title claims abstract description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 101
- 229910052742 iron Inorganic materials 0.000 claims abstract description 51
- 238000005188 flotation Methods 0.000 claims abstract description 37
- 230000005291 magnetic effect Effects 0.000 claims abstract description 23
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 20
- 239000012141 concentrate Substances 0.000 claims abstract description 20
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000005189 flocculation Methods 0.000 claims abstract description 12
- 230000016615 flocculation Effects 0.000 claims abstract description 12
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 12
- 239000011707 mineral Substances 0.000 claims abstract description 12
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 10
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 claims description 39
- 239000006260 foam Substances 0.000 claims description 36
- 239000003795 chemical substances by application Substances 0.000 claims description 22
- 229920002472 Starch Polymers 0.000 claims description 18
- 235000019698 starch Nutrition 0.000 claims description 18
- 239000008107 starch Substances 0.000 claims description 18
- 229910001608 iron mineral Inorganic materials 0.000 claims description 15
- OTYNBGDFCPCPOU-UHFFFAOYSA-N phosphane sulfane Chemical compound S.P[H] OTYNBGDFCPCPOU-UHFFFAOYSA-N 0.000 claims description 15
- 230000003009 desulfurizing effect Effects 0.000 claims description 12
- 239000000706 filtrate Substances 0.000 claims description 12
- 239000004088 foaming agent Substances 0.000 claims description 12
- 230000001105 regulatory effect Effects 0.000 claims description 12
- 239000002002 slurry Substances 0.000 claims description 12
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 10
- 239000000194 fatty acid Substances 0.000 claims description 10
- 229930195729 fatty acid Natural products 0.000 claims description 10
- 150000004665 fatty acids Chemical class 0.000 claims description 10
- 239000003784 tall oil Substances 0.000 claims description 10
- QCJQWJKKTGJDCM-UHFFFAOYSA-N [P].[S] Chemical compound [P].[S] QCJQWJKKTGJDCM-UHFFFAOYSA-N 0.000 claims description 9
- 239000002817 coal dust Substances 0.000 claims description 6
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims description 6
- 239000012188 paraffin wax Substances 0.000 claims description 6
- 239000000344 soap Substances 0.000 claims description 6
- 239000003921 oil Substances 0.000 claims description 5
- UOJYYXATTMQQNA-UHFFFAOYSA-N Proxan Chemical compound CC(C)OC(S)=S UOJYYXATTMQQNA-UHFFFAOYSA-N 0.000 claims description 4
- 229910052586 apatite Inorganic materials 0.000 claims description 4
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 claims description 4
- VSIIXMUUUJUKCM-UHFFFAOYSA-D pentacalcium;fluoride;triphosphate Chemical group [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 claims description 4
- 239000012991 xanthate Substances 0.000 claims description 4
- CONMNFZLRNYHIQ-UHFFFAOYSA-N 3-methylbutoxymethanedithioic acid Chemical compound CC(C)CCOC(S)=S CONMNFZLRNYHIQ-UHFFFAOYSA-N 0.000 claims description 3
- TUZCOAQWCRRVIP-UHFFFAOYSA-N butoxymethanedithioic acid Chemical compound CCCCOC(S)=S TUZCOAQWCRRVIP-UHFFFAOYSA-N 0.000 claims description 3
- 150000002989 phenols Chemical class 0.000 claims description 3
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims description 2
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims description 2
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims description 2
- 239000005642 Oleic acid Substances 0.000 claims description 2
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims description 2
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims description 2
- 229910052683 pyrite Inorganic materials 0.000 claims description 2
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 claims description 2
- 239000011028 pyrite Substances 0.000 claims description 2
- 238000011084 recovery Methods 0.000 abstract description 12
- 239000010419 fine particle Substances 0.000 abstract 2
- 238000000926 separation method Methods 0.000 abstract 1
- 239000005864 Sulphur Substances 0.000 description 14
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000007885 magnetic separation Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 3
- 235000003283 Pachira macrocarpa Nutrition 0.000 description 2
- 241001083492 Trapa Species 0.000 description 2
- 235000014364 Trapa natans Nutrition 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 235000009165 saligot Nutrition 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 235000019580 granularity Nutrition 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 235000020985 whole grains Nutrition 0.000 description 1
Images
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a method for recycling high-phosphorus/sulfur siderite resources. The method comprises the following steps: finely grinding the raw ore, and removing phosphorus and sulfur by asynchronous reverse flotation, to obtain low-phosphorus/sulfur crude concentrate; subjecting the crude concentrate to reduction roasting in a roasting furnace while adding sodium carbonate, to obtain reduced roasted ore; and performing magnetic flocculation-enhanced separation. The process can not only increase the concentrate grade but also effectively improve recovery of magnetic minerals at fine-particle level and micro-fine-particle level and achieve advanced removal of phosphorus and sulfur from the roasted ore, greatly increases the recycling rate of a great amount of refractory high-phosphorus/sulfur siderite resources, and produces iron concentrate having iron grade of more than 65%, iron recovery rate of more than 65%, phosphorus content of less than 0.20% and sulfur content of less than 0.3%.
Description
Technical field
The present invention relates to a kind of method of recycling iron resource from the siderite resource containing high phosphorus, high-sulfur, belong to ore dressing metallurgical technology field.
Background technology
Siderite is a kind of traditional iron ore deposit, but because self ferrous grade is low, unique, this iron ore deposit is not widely used.At present, some mineral compositions are relatively simple, and the siderite resource that objectionable impurities content is lower starts to be utilized, and most of siderite resource containing high phosphorus sulphur substantially belongs to dull difficulty and selects mineral resources.The recycling of relevant high phosphorus-sulfur siderite resource is that ore dressing field does not have the basic technical barrier solving always, is also the hot issue of research.
High phosphorus-sulfur siderite is mainly composed and is stored in appositional pattern and part contact metasomatism hot-liquid type iron ore-deposit, and wherein harmful element phosphorus mainly exists with the form of apatite, and harmful element sulphur mainly exists with the form of sulphide ore.At present, high phosphorus-sulfur siderite has been carried out to many research both at home and abroad, but production instance is rare.High phosphorus-sulfur siderite evaluation and exploration technology relate generally to following some: 1) objectionable impurities phosphorus, sulphur effectively removes; 2) take the abundant conversion of siderite as main weak magnetism mineral magnetropism iron; 3) effective recovery of Armco magnetic iron mineral.High phosphorus-sulfur siderite, after calcination process, can obtain containing ferromagnetic roast ore, and Armco magnetic iron wherein can be used as the raw material of ironmaking.But its precondition is first to realize the abundant conversion of siderite magnetropism iron, and then realize the efficiently separated of Armco magnetic iron and phosphorous sulphur slag.
Application number is that " beneficiation methods of the weakly magnetic iron ores such as a kind of Ling Tie Kuang ﹑ He Tie Kuang ﹑ and water chestnut limonite mineral intergrowth " disclosed technological process of 200610031735.6 comprises roasting Jie Duan ﹑ magnetic separation stage and reverse flotation stage.This technique has realized the coal-based rotary kiln wholegrain level siderite magnetizing roast large-scale industrial under air-proof condition and has produced, but the shortcoming of the method is that technique Fu Za ﹑ control difficulty great ﹑ beneficiation cost is high.This technique is also difficult to realize effectively removing of phosphorus sulphur in high phosphorus-sulfur siderite simultaneously.
Application number is " utilizing low-grade siderite to produce the technique of fine iron breeze " of 20061002265.4
And 200610069619.3 " a kind of limonite and siderite are produced method and the reduction roaster of iron fine powder " though these two kinds of techniques can obtain high-grade iron ore concentrate, because be carries out magnetizing roast cannot realize effectively removing of sulphur in high sulfur siderite under reducing atmosphere.
Application number is that 201010272435.3 " utilization methods of siderite " impels sulphur to realize the high grade iron concentrate that removes and obtain of sulphur in being discharged to air with the form of gas under strong oxidizing atmosphere, but this technique exists the serious problem of environmental pollution.
At present, it is relatively simple that the method for domestic main employing magnetizing roast-magnetic separation is processed mineral constituent, and the siderite that objectionable impurities content is lower, if while adopting these PROCESS FOR TREATMENT to contain the siderite of high phosphorus, high-sulfur, its product quality difficulty reaches the requirement of production, can not make full use of these type of mineral resources.
Summary of the invention
The present invention, for developing high phosphorus-sulfur siderite resource, improves iron grade and the rate of recovery of siderite concentrate, reduces phosphorus in concentrate, the content of sulphur, a kind of method that provides high phosphorus sulphur water chestnut ore resources to recycle.
The present invention is achieved through the following technical solutions:
1, raw ore is milled to-45 μ m(and is less than 45 μ m) grade, and the ore deposit weight percentage of-45 μ m granularities is greater than 90%; Control mog, by fine grinding ore deposit, reach the monomer dissociation of mineral, be that removing of phosphorus sulphur create good condition, but overgroundly will not only increase beneficiation cost, can reduce floatation indicators, the weight percentage that therefore preferred mog is-45 μ m grades is greater than 90% simultaneously.
2, slurry pH to 7～9 of regulating step 1 gained, calculate by 1 ton of raw ore amount, add the xanthate collectors of 50～100 grams, and the foaming agent of 50～100 grams, carries out reverse flotation desulfurizing, collect sulfur-bearing foam.
3, underflow slurry pH to 9～11 of reverse flotation desulfurizing in regulating step 2, calculate by 1 ton of raw ore amount, add the fatty acid collecting agent of 100～200 grams, carry out reverse flotation and roughly select dephosphorization, collect phosphorous foam 1, at reverse flotation, roughly select and in dephosphorization underflow ore pulp, add the starch of 100～200 grams, the fatty acid collecting agent of 20～50 grams, carry out reverse flotation and scan dephosphorization, collect phosphorous foam 2, in phosphorous foam 1, add the starch of 200～500 grams, the fatty acid collecting agent of 20～50 grams, carry out selected 1 dephosphorization, reclaim iron mineral wherein, collect phosphorous foam 3, phosphorous foam 2 and 3 is mixed and adds the starch of 200～500 grams, the fatty acid collecting agent of 100～300 grams, carry out selected 2 dephosphorizations, reclaim iron mineral wherein, to scan, selected 1 and selected 2 underflows filter to obtain filter residue and filtrate, filtrate cycle is used.
4, in the filter residue of the 3rd step dephosphorization reverse flotation, add 2%～5% sodium carbonate, 5%～10% coal dust, at 900～1100 ℃ of roasting temperature 90min～150min, obtains reduction roasting ore deposit; Add appropriate sodium carbonate with the conversion of strengthening siderite magnetropism iron mineral, thereby create good condition for magnetic flocculation sorting, do not add or add the reduction that excessive sodium carbonate is all unfavorable for siderite.
5, the weight percentage that the reduction roasting ore deposit of the 4th step is milled to-45 μ m grades is greater than 85%, and the magnetic flocculation separating method using through routine, obtains iron ore concentrate.In this step, control the mog in reduction roasting ore deposit, by ore grinding, reach dissociating of iron mineral and phosphorus ore containing, thereby for magnetic flocculation sorting is carried iron and degree of depth dephosphorization is created good condition, in reduction roasting ore deposit, being separated in magnetic flocculation sorting post of Armco magnetic iron and slag completes, and could effectively realize the recovery of fine fraction and micro-size fraction magnetic mineral by magnetic flocculation-enhanced sorting.
In the sulphur of high phosphorus described in the present invention sparring raw ore, phosphorus ore containing is apatite or collophane, and sulfur mineral is pyrite or magnetic iron ore.
Xanthate collectors described in the present invention is a kind of in butyl xanthate, isoamyl xanthate, isopropyl xanthate.
In the present invention, foaming agent is a kind of in terpenic oil, No. 730 foaming agents, No. 2 oil, commercially available phenols foaming agent.
Fatty acid collecting agent described in the present invention is a kind of in oleic acid, oxidized paraffin wax soap, tall oil.
The present invention has the following advantages and good effect:
1, adopted beneficiation method of the present invention, the major part that has realized phosphorus sulphur under low reagent consumption removes, and has reduced the difficulty of reduction roasting ore deposit magnetic separation dephosphorization sulphur, and this dephosphorization sulphur technology is to the assorted certain directive significance that has of falling of the similar iron ore of China.
2, in reducing roasting process, by adding the sodium carbonate of low amount, strengthen the conversion of siderite magnetropism iron, for magnetic separation obtains high-recovery, provide guarantee.
3, by the sorting of fine grinding reduced ore-magnetic flocculation, can not only improve concentrate iron grade, the while has effectively strengthened the recovery of fine fraction and microfine magnetic mineral and has realized the deep removal of roasted ore phosphorus sulphur.
4, this invention can obtain more than 65% iron ore concentrate of iron grade, iron recovery is more than 65%, the content of foreign matter of phosphor sulphur also meets national standard, the high phosphorus-sulfur siderite resource of current dull difficult choosing is developed, to alleviate the situation of current domestic iron ore deposit supply and demand anxiety.
Accompanying drawing explanation
Fig. 1 is process flow diagram of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail, but protection domain of the present invention is not limited to described content.
Embodiment 1: the method for this high phosphorus-sulfur siderite resource recycling, and particular content is as follows:
In the present embodiment, raw ore is iron grade 30.76%, phosphorous 1.05%, the siderite ore of sulfur-bearing 1.38%, and phosphorus exists with the form of collophane, and sulphur exists with pyritous form, and concrete operations are as follows:
1, the ore deposit weight percentage that 1 ton of raw ore is milled to-45 μ m grades accounts for 92%;
2, the ore grinding slurry pH to 7.5 of regulating step 1 gained, adds the butyl xanthate of 100 grams, and the terpenic oil foaming agent of 60 grams, carries out reverse flotation desulfurizing, collects sulfur-bearing foam;
3, the underflow slurry pH to 10 of reverse flotation desulfurizing in regulating step 2, adds the oleic collector of 150 grams of/ton of raw ores, carries out reverse flotation and roughly selects dephosphorization, collects phosphorous foam 1, at reverse flotation, roughly select and in dephosphorization underflow ore pulp, add the starch of 200 grams, the oleic collector of 50 grams, carry out reverse flotation and scan dephosphorization, collect phosphorous foam 2, in phosphorous foam 1, add the starch of 500 grams, the oleic collector of 50 grams, carry out selected 1 dephosphorization, reclaim iron mineral wherein, collect phosphorous foam 3, phosphorous foam 2 and 3 is mixed and adds the starch of 400 grams, the oleic collector of 200 grams of/ton of raw ores, carry out selected 2 dephosphorizations, reclaim iron mineral wherein, to scan, selected 1 and selected 2 underflow filters and obtains filter residue and filtrate, filtrate can be recycled,
4, in the filter residue of step 3 dephosphorization reverse flotation, add 5% sodium carbonate, 6% coal dust, at 1000 ℃ of roasting temperature 120min, obtains reduction roasting ore deposit;
5, the weight percentage that reduction roasting ore deposit is milled to-45 μ m grades is 87%, through a magnetic flocculation sorting, obtains iron ore concentrate.The technical indicator of iron ore concentrate is: iron grade 68.45%, and phosphorous 0.13%, sulfur-bearing 0.28%, iron recovery 68%.
Embodiment 2: the method for this high phosphorus-sulfur siderite resource recycling, and particular content is as follows:
In the present embodiment, raw ore is iron grade 28.65%, phosphorous 0.95 %, and the siderite ore of sulfur-bearing 1.30%, phosphorus exists with the form of apatite, and sulphur exists with pyritous form, and concrete operations are as follows:
1, the ore deposit weight percentage that 1 ton of raw ore is milled to-45 μ m grades accounts for 94%;
2, the ore grinding slurry pH to 8 of regulating step 1 gained, adds the isoamyl xanthate of 100 grams, and the foaming agent that the commercial code of 50 grams is 730, carries out reverse flotation desulfurizing, collects sulfur-bearing foam;
3, the underflow slurry pH to 9 of reverse flotation desulfurizing in regulating step 2, adds the oxidized paraffin wax soap collecting agent of 100 grams, carries out reverse flotation and roughly selects dephosphorization, collects phosphorous foam 1, at reverse flotation, roughly select and in dephosphorization underflow ore pulp, add the starch of 150 grams, 50 grams of oxidized paraffin wax soap collecting agents, carry out reverse flotation and scan dephosphorization, collect phosphorous foam 2, in phosphorous foam 1, add the starch of 400 grams, the oxidized paraffin wax soap collecting agent of 50 grams, carry out selected 1 dephosphorization, reclaim iron mineral wherein, collect phosphorous foam 3, phosphorous foam 2 and 3 is mixed and adds the starch of 400 grams, the oxidized paraffin wax soap collecting agent of 200 grams, carry out selected 2 dephosphorizations, reclaim iron mineral wherein, to scan, selected 1 and selected 2 underflow filters and obtains filter residue and filtrate, filtrate can be recycled,
4, in the filter residue of step 3 dephosphorization reverse flotation, add 4% sodium carbonate, 10% coal dust is incubated 150min at 900 ℃ of temperature, obtains reduction roasting ore deposit;
5, the weight percentage that reduction roasting ore deposit is milled to-45 μ m grades is 89%, through a magnetic flocculation sorting, obtains iron ore concentrate.The technical indicator of iron ore concentrate is: iron grade 69.45%, and phosphorous 0.11%, sulfur-bearing 0.29%, iron recovery 67%.
Embodiment 3: the method for this high phosphorus-sulfur siderite resource recycling, and particular content is as follows:
In the present embodiment, raw ore is iron grade 31.16%, phosphorous 1.08%, the siderite ore of sulfur-bearing 1.25%, and phosphorus exists with the form of collophane, and sulphur exists with magnetic iron ore and pyritous form, and concrete operations are as follows:
1, the ore deposit weight percentage that 1 ton of raw ore is milled to-45 μ m grades accounts for 95%;
2, the ore grinding slurry pH to 9 of regulating step 1 gained, adds the isopropyl xanthate of 80 grams, and No. 2 oily foaming agents of 50 grams, carry out reverse flotation desulfurizing, collects sulfur-bearing foam;
3, the underflow slurry pH to 11 of reverse flotation desulfurizing in regulating step 2, adds the tall oil collecting agent of 150 grams of/ton of raw ores, carries out reverse flotation and roughly selects dephosphorization, collects phosphorous foam 1, at reverse flotation, roughly select the starch that adds 200 grams of/ton of raw ores in dephosphorization underflow ore pulp, the tall oil collecting agent of 40 grams, carry out reverse flotation and scan dephosphorization, collect phosphorous foam 2, in phosphorous foam 1, add the starch of 400 grams, the tall oil collecting agent of 40 grams of/ton of raw ores, carry out selected 1 dephosphorization, reclaim iron mineral wherein, collect phosphorous foam 3, the starch that phosphorous foam 2 and 3 is mixed and adds to 500 grams of/ton of raw ores, the tall oil collecting agent of 300 grams of/ton of raw ores, carry out selected 2 dephosphorizations, reclaim iron mineral wherein, to scan, selected 1 and selected 2 underflow filters and obtains filter residue and filtrate, filtrate can be recycled,
4, in the filter residue of step 3 dephosphorization reverse flotation, add 5% sodium carbonate, 10% coal dust is incubated 120min at 1100 ℃ of temperature, obtains reduction roasting ore deposit;
5, the weight percentage that reduction roasting ore deposit is milled to-45 μ m grades is 86%, through a magnetic flocculation sorting, obtains iron ore concentrate.The technical indicator of iron ore concentrate: iron grade 70.45%, phosphorous 0.15%, sulfur-bearing 0.29%, iron recovery 68%.
Embodiment 4: the method for this high phosphorus-sulfur siderite resource recycling, and particular content is as follows:
Raw ore ferrous grade 29.16% in the present embodiment, phosphorous 1.02%, the siderite ore of sulfur-bearing 1.27%, phosphorus exists with the form of collophane, and sulphur exists with magnetic iron ore and pyritous form, and concrete operations are as follows:
1, the ore deposit weight percentage that 1 ton of raw ore is milled to-45 μ m grades accounts for 92%;
2, the ore grinding slurry pH to 7 of regulating step 1 gained, adds the isopropyl xanthate of 50 grams of/ton of raw ores, and the commercially available phenols foaming agent of 100 grams of/ton of raw ores, carries out reverse flotation desulfurizing, collects sulfur-bearing foam;
3, the underflow slurry pH to 9 of reverse flotation desulfurizing in regulating step 2, adds the tall oil collecting agent of 200 grams of/ton of raw ores, carries out reverse flotation and roughly selects dephosphorization, collects phosphorous foam 1, at reverse flotation, roughly select the starch that adds 100 grams of/ton of raw ores in dephosphorization underflow ore pulp, the tall oil collecting agent of 20 grams of/ton of raw ores, carry out reverse flotation and scan dephosphorization, collect phosphorous foam 2, the starch that adds 200 grams of/ton of raw ores in phosphorous foam 1, the tall oil collecting agent of 20 grams of/ton of raw ores, carry out selected 1 dephosphorization, reclaim iron mineral wherein, collect phosphorous foam 3, the starch that phosphorous foam 2 and 3 is mixed and adds to 200 grams of/ton of raw ores, the tall oil collecting agent of 100 grams of/ton of raw ores, carry out selected 2 dephosphorizations, reclaim iron mineral wherein, to scan, selected 1 and selected 2 underflow filters and obtains filter residue and filtrate, filtrate can be recycled,
4, in the filter residue of step 3 dephosphorization reverse flotation, add 2% sodium carbonate, 5% coal dust is incubated 90min at 1100 ℃ of temperature, obtains reduction roasting ore deposit;
5, the weight percentage that reduction roasting ore deposit is milled to-45 μ m grades is 88%, through a magnetic flocculation sorting, obtains iron ore concentrate.The technical indicator of iron ore concentrate is: iron grade 69.95%, and phosphorous 0.12%, sulfur-bearing 0.24%, iron recovery 66%.
Claims (2)
1. a method for high phosphorus-sulfur siderite resource recycling, is characterized in that completing according to the following steps:
(1) weight percentage that high phosphorus sulphur sparring raw ore is milled to-45 μ m grades is greater than 90%;
(2) ore grinding slurry pH to 7～9 of regulating step (1) gained, add the xanthate collectors of 50～100 grams of/ton of raw ores, and the foaming agent of 50～100 grams of/ton of raw ores, carries out reverse flotation desulfurizing, collect sulfur-bearing foam;
(3) underflow slurry pH to 9～11 of reverse flotation desulfurizing in regulating step (2), add the fatty acid collecting agent of 100～200 grams of/ton of raw ores, carry out reverse flotation and roughly select dephosphorization, collect phosphorous foam 1, at reverse flotation, roughly select the starch that adds 100～200 grams of/ton of raw ores in dephosphorization underflow ore pulp, the fatty acid collecting agent of 20～50 grams of/ton of raw ores, carry out reverse flotation and scan dephosphorization, collect phosphorous foam 2, the starch that adds 200～500 grams of/ton of raw ores in phosphorous foam 1, the fatty acid collecting agent of 20～50 grams of/ton of raw ores, carry out selected 1 dephosphorization, reclaim iron mineral wherein, collect phosphorous foam 3, the starch that phosphorous foam 2 and 3 is mixed and adds to 200～500 grams of/ton of raw ores, the fatty acid collecting agent of 100～300 grams of/ton of raw ores, carry out selected 2 dephosphorizations, reclaim iron mineral wherein, to scan, selected 1 and selected 2 underflows filter and to obtain filter residue and filtrate, filtrate cycle is used,
(4) in the filter residue of step (3), add 2%～5% sodium carbonate, 5%～10% coal dust is incubated 90min～150min at 900～1100 ℃ of temperature, obtains reduction roasting ore deposit;
(5) weight percentage that reduction roasting ore deposit is milled to-45 μ m grades is greater than 85%, through magnetic flocculation sorting, obtains iron ore concentrate;
Wherein xanthate collectors is a kind of in butyl xanthate, isoamyl xanthate, isopropyl xanthate;
Described foaming agent is a kind of in terpenic oil, No. 730 foaming agents, No. 2 oil, phenols foaming agent;
Described fatty acid collecting agent is a kind of in oleic acid, oxidized paraffin wax soap, tall oil.
2. the method for high phosphorus-sulfur siderite resource recycling according to claim 1, is characterized in that: the phosphorus ore thing containing in high phosphorus sulphur sparring raw ore is apatite or collophane, and sulfur mineral is pyrite or magnetic iron ore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110410859.6A CN102513203B (en) | 2011-12-12 | 2011-12-12 | Method for recycling high-phosphorus/sulfur siderite resource |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110410859.6A CN102513203B (en) | 2011-12-12 | 2011-12-12 | Method for recycling high-phosphorus/sulfur siderite resource |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102513203A CN102513203A (en) | 2012-06-27 |
| CN102513203B true CN102513203B (en) | 2014-04-02 |
Family
ID=46284416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110410859.6A Expired - Fee Related CN102513203B (en) | 2011-12-12 | 2011-12-12 | Method for recycling high-phosphorus/sulfur siderite resource |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102513203B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102776358B (en) * | 2012-08-22 | 2013-10-02 | 邵金堤 | Dephosphorization agent, method for preparing same and application |
| JP6009999B2 (en) * | 2013-06-27 | 2016-10-19 | 株式会社神戸製鋼所 | Method for producing low sulfur-containing iron ore |
| CN104148175B (en) * | 2014-08-08 | 2017-02-22 | 西北矿冶研究院 | Mineral processing technology for processing mixed diamond and magnetic ore |
| CN108273657A (en) * | 2018-03-12 | 2018-07-13 | 湖北省兴发磷化工研究院有限公司 | A kind of floating combined sorting method of rock phosphate in powder magnetic- |
| CN108970799A (en) * | 2018-08-06 | 2018-12-11 | 中国恩菲工程技术有限公司 | The system for handling Ultra-low-grade magnetite |
| CN111375484B (en) * | 2018-12-29 | 2021-12-07 | 中蓝连海设计研究院有限公司 | Phosphate ore washing, classifying, roasting and flotation method |
| CN115228623A (en) * | 2022-07-22 | 2022-10-25 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for simultaneously reducing P and Mn contents in ferrovanadium alloy |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1857783A (en) * | 2006-05-30 | 2006-11-08 | 长沙矿冶研究院 | Beneficiation method for weak magnetic iron ores such as siderite, limonite and siderite paragenetic ore |
-
2011
- 2011-12-12 CN CN201110410859.6A patent/CN102513203B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1857783A (en) * | 2006-05-30 | 2006-11-08 | 长沙矿冶研究院 | Beneficiation method for weak magnetic iron ores such as siderite, limonite and siderite paragenetic ore |
Non-Patent Citations (6)
| Title |
|---|
| 《云南某菱铁矿石保铁降杂试验研究》;柏少军等;《矿冶》;20100915;第19卷(第3期);第4-7页 * |
| 《云南某难选菱铁矿石选矿试验研究》;柏少军等;《金属矿山》;20100515;第73-76页 * |
| 《云南某高磷褐铁矿石选冶联合工艺研究》;柏少军等;《金属矿山》;20100115(第403期);第54-58页 * |
| 柏少军等.《云南某菱铁矿石保铁降杂试验研究》.《矿冶》.2010,第19卷(第3期), |
| 柏少军等.《云南某难选菱铁矿石选矿试验研究》.《金属矿山》.2010, |
| 柏少军等.《云南某高磷褐铁矿石选冶联合工艺研究》.《金属矿山》.2010,(第403期), |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102513203A (en) | 2012-06-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102513203B (en) | Method for recycling high-phosphorus/sulfur siderite resource | |
| CN101862703B (en) | Separation-smelting combined method for producing iron ore concentrate from oolitic lean hematite | |
| CN101487068B (en) | Technological process for directly producing spongy iron from high-phosphor oolitic hematite | |
| CN100490981C (en) | Beneficiation method for weak magnetic iron ores such as siderite, limonite and siderite paragenetic ore | |
| CN101713007B (en) | Technique method for directly producing sponge iron by carrying out deep reduction of vanadium-extracted tailings | |
| CN101798113B (en) | Metallurgical method for extracting vanadium pentexide from low-grade stone coal vanadium ores | |
| CN106944248B (en) | A kind of beneficiation method of the compound iron ore of hydrochlorate containing high-carbon | |
| CN101775485B (en) | Discarded tailing preconcentration-magnetizing roast iron-extracting and sulphur-reducing beneficiation method of sulphur-smelting cinder | |
| CN104437826A (en) | Separation technology of specularite after reduction roasting | |
| CN103495493A (en) | Beneficiation method for low-grade fine tin ore | |
| CN104069937A (en) | Ore dressing method for removing pyrrhotite from iron ore | |
| CN102876882A (en) | Method for recovering iron from rare-earth tailings and producing high-grade fine iron powder | |
| CN101693948B (en) | Method for preparing steel smelting furnace materials from phosphorus-containing globulitic hematite | |
| CN105478232B (en) | A kind of beneficiation method from graphite mould navajoite enrichment vanadic anhydride | |
| CN101632957A (en) | Process for processing hematite ore containing iron carbonate | |
| CN103643030A (en) | Mineral processing process for preparing qualified iron concentrate by adopting oolitic iron mine as raw material | |
| CN103894283B (en) | A kind of ore-dressing technique of iron content height silicate-type iron ore | |
| CN105750089B (en) | A kind of magnesia collophane method for separating | |
| CN104815746A (en) | Recovery method of high-iron highly-argillaceous alkaline gangue refractory oxide copper ore | |
| CN103643033A (en) | Method for reducing titanium in direct reduction iron of seashore titanomagnetite by utilizing composite additive | |
| CN102796839A (en) | Technique for producing direct reduced iron and synchronously performing desulfurization through reduction roasting of sulfate slag | |
| CN102605174B (en) | Process method for respectively recovering nickel and iron from low-nickel high-iron laterite | |
| CN104607308A (en) | Beneficiation method for high carbonate iron ore | |
| CN104148161B (en) | A kind of bone coal navajoite acidity that reclaims soaks the method for fine beans in slag | |
| CN103586138A (en) | Phosphor decrease and iron extraction technology of high phosphorus magnetic iron ore |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20191212 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |