CN105154665A - Treatment method of sulfur and cobalt concentrate - Google Patents
Treatment method of sulfur and cobalt concentrate Download PDFInfo
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- CN105154665A CN105154665A CN201510697945.8A CN201510697945A CN105154665A CN 105154665 A CN105154665 A CN 105154665A CN 201510697945 A CN201510697945 A CN 201510697945A CN 105154665 A CN105154665 A CN 105154665A
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Abstract
The invention belongs to the technical field of thermometallurgy and particularly relates to a treatment method of sulfur and cobalt concentrate. The method includes the following steps of 1, oxidizing roasting; 2, pressure forming; 3, drying; 4, direct reduction; 5, protection and cooling; 6, ore grinding and magnetic separation, wherein alloyed iron powder and furnace slag are finally obtained. According to the method, a novel process technology for sulfur and cobalt concentrate comprehensive utilization is provided, the problems that in the wet process smelting cobalt and nickel industry, the technological process is complex, energy consumption is high, by-products are more, pollution is severe, efficiency is low, and the cobalt and nickel recovery rate is low are solved, the advantages of being simple in process, short in period, high in efficiency and the like are achieved, iron, cobalt, nickel, copper, sulfur and other valuable resources can be efficiently separated out of the sulfur and cobalt concentrate, the resource recovery rate can reach more than 95%, and high economic benefits are achieved. Meanwhile, the prepared alloyed iron powder can serve as additives for steel making and iron casting and is also widely used for preparing magnetic materials, high-temperature alloy and the like, and magnetic separation tailings can be used for preparing cement, concrete, floor tiles and other building materials.
Description
Technical field
The present invention relates to field of thermometallurgical technology, particularly a kind for the treatment of process of sulphur cobalt concentrate.
Background technology
Cobalt, nickel resources are national grand strategy resources, and along with the develop rapidly of aerospace and Defence business, cobalt nickel resources has become international emphasis preempting resources.According to land resources department statistics, China first lacks platinum family element metal, and second what lack is exactly cobalt metal element, the annual cobalt consumption about 4 ~ 60,000 tons in the whole nation, and wherein 2 ~ 30,000 tons from import.Copper consumption in electrical equipment, transmission of electricity and electronic industry is maximum, with the elastic element etc. of copper production various bullet, shell, naval vessels prolong and heat exchanger and various instrument in military affairs.Also can be used to make bearing, bearing shell, oil pipe, valve, the pump housing, and high pressure steam equipment, medicine equipment, opticinstrument, finishing material and metal art product and various household utensils etc.
Climb in western vanadium titano-magnetite nonferrous metal resources such as containing the huge cobalt of reserves, nickel and copper, the reserves of Panxi Diqu cobalt, nickel, copper resource are all more than 1,000,000 tons according to estimates, but owing to there is the reason such as grade low (Co0.21 ~ 2.103%, Ni0.18 ~ 4.305%, Cu0.11 ~ 1.37%, Fe18 ~ 50%), point spreading, although producing level and recoverying and utilizing method scholars certain research can be had to this part resource, solve Problems existing in current Panxi Diqu cobalt, nickel resources recycling process at all.Mostly adopt sulfurization roasting-leaching-purification-cobalt nickel to be separated hydrometallurgical processes process sulphur cobalt concentrate both at home and abroad, but there is the problems such as technical process complexity, the cycle is longer, pollution is large, resource recovery is low.Oxidizing roasting-coal-based direct reduction-magnetic separation process is carried out to sulphur cobalt concentrate, high efficiency separation can reclaim the valuable resource such as iron, cobalt, nickel, copper wherein, have no the report of this art breading sulphur cobalt concentrate at present.
Summary of the invention
The object of the present invention is to provide a kind for the treatment of process of sulphur cobalt concentrate, improve and overcome the shortcoming that technical process is long, resource recovery is low, environmental pollution is serious having at present and exist in technique.
The treatment process of sulphur cobalt concentrate of the present invention, comprises the steps:
(1) oxidizing roasting: sulphur cobalt concentrate, after oxidizing roasting, obtains roasting material: wherein oxidizing roasting condition is: maturing temperature 500 ~ 750 DEG C, roasting time 10 ~ 20min, excess air coefficient is 1.2 ~ 2.0;
(2) pressure forming: material is mixed, makes wet bulb group; Wherein each weight of material proportioning is as follows: roasting material: reductive agent: binding agent: water=100:(15 ~ 25): (3 ~ 8): (4 ~ 9);
(3) dry: described humidogene pelletizing to be carried out dry dry bulb group;
(4) direct-reduction: described dry bulb group is carried out high temperature fast direct reducing, obtains metallized pellet;
(5) protection cooling: described metallized pellet is carried out protection cooling, in order to prevent from reoxidizing;
(6) magnetic separation: by cooled metallized pellet after fragmentation, fine grinding, magnetic separation, obtains alloyed iron powder and magnetic separation tailing.
Wherein:
Described in step (1), the granularity of sulphur cobalt concentrate is 100 ~ 325 orders.
Described in step (2), the granularity of roasting material is 100 ~ 270 orders, and is less than 200 orders and accounts for more than 65%.
Reductive agent described in step (2) is mainly one in common coal dust, pulverized anthracite, Graphite Powder 99, coke powder, gac, charcoal, blue charcoal, refinery coke, pitch coke or its mixture.
Binding agent described in step (2) is one in polyvinyl alcohol, carboxymethyl cellulose, molasses, sucrose, starch, paste or its mixture.
Described in step (2), the forming pressure of pressure globulation is 5 ~ 20MPa, and molding time is 15 ~ 80s.
Described in step (3), drying process is carried out in air dry oven, and drying temperature is 100 ~ 220 DEG C, and time of drying is 40 ~ 100min.
The group of dry bulb described in step (4) Direct Reduction carries out in reduction furnace, resistance furnace or rotary hearth furnace or car bottom furnace or tunnel furnace.
The reduction temperature of the group of dry bulb described in step (4) Direct Reduction is 1200 ~ 1400 DEG C, and the recovery time is 20 ~ 50min, and atmosphere is reducing atmosphere.
Step (5) protection cooling prevents from reoxidizing, and after pelletizing cooling to metalization, measures its degree of metalization in order to characterize the reduction effect of pelletizing.
Metallized pellet described in step (5) is protection cooling in the shielding gas such as nitrogen or argon gas or in the reducing medium such as coal dust.
The degree of metalization of pelletizing described in step (5) adopts chemical analysis to measure pelletizing Gold Samples respectively to belong to iron (MFe) content and full iron (TFe) content, and calculate by formula (MFe/TFe) × 100%.
Metallized pellet shattering process described in step (6) adopts hand breaking or carries out in pulverizer.
Described in step (6), metallized pellet fine grinding process is carried out in vibration mill or ball mill, and grinding fineness is about 80% ~ 90% for-200 order proportions.
Described in step (6), the magnetic separation process of metallized pellet is carried out in wet magnetic separation pipe, and magneticstrength is 0.05 ~ 0.3T.
The inventive method is applicable to pyrometallurgical smelting cobalt ferronickel copper industry, improve and overcome the shortcoming that technical process is long, resource recovery is low, environmental pollution is serious having at present and exist in technique, have that technique is simple, with low cost, the cycle is short, efficiency advantages of higher, can the valuable resource such as separating ferrum, cobalt, nickel, copper, sulphur from sulphur cobalt concentrate efficiently, the rate of recovery can reach more than 90%, has higher economic benefit.
Accompanying drawing explanation
The schema of the treatment process of the sulphur cobalt concentrate that Fig. 1 provides for the embodiment of the present invention.
Embodiment
Be below specific embodiment of the invention case, providing of these embodiments is that the present invention is described in more detail, and does not mean that limitation of the present invention.
Comparative example 1
(1) sulphur cobalt concentrate 1000g is carried out fine grinding, load in crucible after crossing 100 mesh sieves, its grade is: Ni0.45%, Co0.87%, Fe46.84%, Cu0.18%, S25.21%.In an oxidizing atmosphere, when resistance furnace temperature rises to 450 DEG C, when excess air coefficient is 1.0, cools with stove protection after crucible being put into stove inside holding 10min, obtain roasting material 840g.
(2) cross 200 mesh sieves by after roasting material fine grinding, wherein-200 orders account for 65.53%.By material by roasting material: common coal dust: polyvinyl alcohol: the weight ratio of water=100:8:2:3 is prepared burden and mixed.Taking 10 parts of quality is respectively that the compound of 94g suppresses balling-up on pressure forming machine, and forming pressure is 12MPa, and molding time is 30s, obtains 10 wet bulb groups.
(3) be put in crucible by all wet bulb groups, dry in air dry oven, time of drying is 30min, and drying temperature is 250 DEG C, obtains 858g dry bulb group.
(4) when resistance furnace temperature is 1100 DEG C, take out rapidly after dry bulb group being placed in resistance furnace reduction 60min, pelletizing is put into nitrogen protection atmosphere and cools, obtain 697g metallized pellet.
(5) by the pulverizing of the metallized pellet of cooling, fine grinding, its grinding fineness accounts for 86.79% for-200 orders.Metallized pellet powder after fine grinding is loaded magnetic separation tube and carries out wet magnetic separation, magneticstrength is 0.04T, and obtain 458g magnetic separation material and 234g magnetic separation tailing, wherein magnetic material is alloyed iron powder.The grade 87.73% of iron in microalloying iron powder, the rate of recovery of iron is 85.78%; The grade of cobalt is 1.71%, and the rate of recovery of cobalt reaches 90.07%; The grade of nickel is 0.88%, and the rate of recovery of nickel reaches 89.56%; The grade of copper is 0.35%, and the rate of recovery of copper reaches 89.06%.
Embodiment 1
(1) sulphur cobalt concentrate 1000g is carried out fine grinding, load in crucible after crossing 100 mesh sieves, its grade is: Ni0.45%, Co0.87%, Fe46.84%, Cu0.18%, S25.21%.In an oxidizing atmosphere, when resistance furnace temperature rises to 600 DEG C, when excess air coefficient is 1.5, cools with stove protection after crucible being put into stove inside holding 15min, obtain roasting material 790g.
(2) cross 200 mesh sieves by after roasting material fine grinding, wherein-200 orders account for 72.23%.By material by roasting material: pulverized anthracite: polyvinyl alcohol: the weight ratio of water=100:20:5:6 is prepared burden and mixed.Taking 10 parts of quality is respectively that the compound of 95g suppresses balling-up on pressure forming machine, and forming pressure is 15MPa, and molding time is 30s, obtains 10 wet bulb groups.
(3) be put in crucible by all wet bulb groups, dry in air dry oven, time of drying is 40min, and drying temperature is 180 DEG C, obtains 890g dry bulb group.
(4) when resistance furnace temperature is 1350 DEG C, take out rapidly after dry bulb group being placed in resistance furnace reduction 35min, pelletizing is put into nitrogen protection atmosphere and cools, obtain 715g metallized pellet.
(5) by the pulverizing of the metallized pellet of cooling, fine grinding, its grinding fineness accounts for 85.73% for-200 orders.Metallized pellet powder after fine grinding is loaded magnetic separation tube and carries out wet magnetic separation, magneticstrength is 0.15T, and obtain 534g magnetic separation material and 175g magnetic separation tailing, wherein magnetic material is alloyed iron powder.The grade 83.43% of iron in microalloying iron powder, the rate of recovery of iron is 95.12%; The grade of cobalt is 1.57%, and the rate of recovery of cobalt reaches 96.37%; The grade of nickel is 0.81%, and the rate of recovery of nickel reaches 96.12%; The grade of copper is 0.33%, and the rate of recovery of copper reaches 97.90%.
Embodiment 2
(1) sulphur cobalt concentrate 1000g is carried out fine grinding, load in crucible after crossing 100 mesh sieves, its grade is: Ni0.45%, Co0.87%, Fe46.84%, Cu0.18%, S25.21%.In an oxidizing atmosphere, when resistance furnace temperature rises to 650 DEG C, when excess air coefficient is 1.8, cools with stove protection after crucible being put into stove inside holding 15min, obtain roasting material 800g.
(2) cross 200 mesh sieves by after roasting material fine grinding, wherein-200 orders account for 71.18%.By material by roasting material: common coal dust: molasses: the weight ratio of water=100:18:5:4 is prepared burden and mixed.Taking 10 parts of quality is respectively that the compound of 92.5g suppresses balling-up on pressure forming machine, and forming pressure is 15MPa, and molding time is 30s, obtains 10 wet bulb groups.
(3) be put in crucible by all wet bulb groups, dry in air dry oven, time of drying is 60min, and drying temperature is 120 DEG C, obtains 862g dry bulb group.
(4) when resistance furnace temperature is 1300 DEG C, take out rapidly after dry bulb group being placed in resistance furnace reduction 35min, pelletizing is put into nitrogen protection atmosphere and cools, obtain 690g metallized pellet.
(5) by the pulverizing of the metallized pellet of cooling, fine grinding, its grinding fineness accounts for 85.70% for-200 orders.Metallized pellet powder after fine grinding is loaded magnetic separation tube and carries out wet magnetic separation, magneticstrength is 0.22T, and obtain 528g magnetic separation material and 158g magnetic separation tailing, wherein magnetic material is alloyed iron powder.The grade 86.43% of iron in microalloying iron powder, the rate of recovery of iron is 97.43%; The grade of cobalt is 1.59%, and the rate of recovery of cobalt reaches 96.49%; The grade of nickel is 0.83%, and the rate of recovery of nickel reaches 97.38%; The grade of copper is 0.33%, and the rate of recovery of copper reaches 96.80%.
Embodiment 3
(1) sulphur cobalt concentrate 1000g is carried out fine grinding, load in crucible after crossing 100 mesh sieves, its grade is: Ni0.45%, Co0.87%, Fe46.84%, Cu0.18%, S25.21%.In an oxidizing atmosphere, when resistance furnace temperature rises to 700 DEG C, when excess air coefficient is 1.5, cools with stove protection after crucible being put into stove inside holding 20min, obtain roasting material 783g.
(2) cross 200 mesh sieves by after roasting material fine grinding, wherein-200 orders account for 74.79%.By material by roasting material: pulverized anthracite: carboxymethyl cellulose: the weight ratio of water=100:20:6:8 is prepared burden and mixed.Taking 10 parts of quality is respectively that the compound of 96g suppresses balling-up on pressure forming machine, and forming pressure is 20MPa, and molding time is 40s, obtains 10 wet bulb groups.
(3) be put in crucible by all wet bulb groups, dry in air dry oven, time of drying is 90min, and drying temperature is 200 DEG C, obtains 886g dry bulb group.
(4) when resistance furnace temperature is 1350 DEG C, take out rapidly after dry bulb group being placed in resistance furnace reduction 35min, pelletizing is put into nitrogen protection atmosphere and cools, obtain 695g metallized pellet.
(5) by the pulverizing of the metallized pellet of cooling, fine grinding, its grinding fineness accounts for 85.77% for-200 orders.Metallized pellet powder after fine grinding is loaded magnetic separation tube and carries out wet magnetic separation, magneticstrength is 0.3T, and obtain 535g magnetic separation material and 152g magnetic separation tailing, wherein magnetic material is alloyed iron powder.The grade 86.51% of iron in microalloying iron powder, the rate of recovery of iron is 98.81%; The grade of cobalt is 1.58%, and the rate of recovery of cobalt reaches 97.16%; The grade of nickel is 0.82%, and the rate of recovery of nickel reaches 97.49%; The grade of copper is 0.32%, and the rate of recovery of copper reaches 95.11%.
For the sulphur cobalt concentrate of Panzhihua Region, sulfurization roasting-leaching-purification-cobalt nickel is mostly adopted to be separated hydrometallurgical processes process sulphur cobalt concentrate in existing method, and in the treatment process that the present invention adopts, except step (1) oxidizing roasting link is except prior art, other processing steps are all technical contributions that the present inventor does, for the cobalt ambrose alloy iron resources in efficient recovery sulphur cobalt concentrate provides a kind of selection completely newly.
Claims (10)
1. the treatment process of sulphur cobalt concentrate, is characterized in that: comprise the steps:
(1) oxidizing roasting: sulphur cobalt concentrate, after oxidizing roasting, obtains roasting material: wherein oxidizing roasting condition is: maturing temperature 500 ~ 750 DEG C, roasting time 10 ~ 20min, excess air coefficient is 1.2 ~ 2.0;
(2) pressure forming: material is mixed, makes wet bulb group; Wherein each weight of material proportioning is as follows: roasting material: reductive agent: binding agent: water=100:15 ~ 25:3 ~ 8:4 ~ 9;
(3) dry: described humidogene pelletizing to be carried out dry dry bulb group;
(4) direct-reduction: described dry bulb group is carried out high temperature fast direct reducing, obtains metallized pellet;
(5) protection cooling: described metallized pellet is carried out protection cooling;
(6) magnetic separation: by cooled metallized pellet after fragmentation, fine grinding, magnetic separation, obtains alloyed iron powder and magnetic separation tailing.
2. the treatment process of sulphur cobalt concentrate as claimed in claim 1, is characterized in that: described in step (1), the granularity of sulphur cobalt concentrate is 100 ~ 325 orders.
3. the treatment process of sulphur cobalt concentrate as claimed in claim 1, is characterized in that: described in step (2), the granularity of roasting material is 100 ~ 270 orders, and is less than 200 orders and accounts for more than 65%.
4. the treatment process of sulphur cobalt concentrate as claimed in claim 1, is characterized in that: reductive agent described in step (2) is one in common coal dust, pulverized anthracite, Graphite Powder 99, coke powder, gac, charcoal, blue charcoal, refinery coke, pitch coke or its mixture.
5. the treatment process of sulphur cobalt concentrate as claimed in claim 1, is characterized in that: binding agent described in step (2) is one in polyvinyl alcohol, carboxymethyl cellulose, molasses, sucrose, starch, paste or its mixture.
6. the treatment process of sulphur cobalt concentrate as claimed in claim 1, is characterized in that: compression moulding step described in step (2) adopts pressure forming machine, and forming pressure is 5 ~ 20MPa, and molding time is 15 ~ 80s.
7. the treatment process of sulphur cobalt concentrate as claimed in claim 1, is characterized in that: drying step described in step (3) is at employing air dry oven, and drying temperature is 100 ~ 220 DEG C, and time of drying is 40 ~ 100min.
8. the treatment process of sulphur cobalt concentrate as claimed in claim 1, is characterized in that: at least meet following any one:
The group of dry bulb described in step (4) direct-reduction step is carried out in reduction furnace, resistance furnace or rotary hearth furnace or car bottom furnace or tunnel furnace;
The reduction temperature that it is characterized in that the group of dry bulb described in step (4) direct-reduction step is 1200 ~ 1400 DEG C, and the recovery time is 20 ~ 50min, and atmosphere is reducing atmosphere.
9. the treatment process of sulphur cobalt concentrate as claimed in claim 1, is characterized in that: sulphur cobalt concentrate metallized pellet described in step (5) is in shielding gas or protection cooling in the reducing medium such as coal dust;
Further preferably, described shielding gas is nitrogen or argon gas.
10. the treatment process of sulphur cobalt concentrate as claimed in claim 1, is characterized in that: at least meet following any one:
Metallized pellet destruction step described in step (6) adopts artificial pulverizing or pulverizer pulverizing;
Metallized pellet fine milling step described in step (6) adopts vibration mill, ball mill or airflow milling, and grinding fineness is 80% ~ 90% for being less than 200 order proportions;
The magnetic separation step of metallized pellet described in step (6) adopts wet magnetic separation pipe, and magneticstrength is 0.05 ~ 0.3T.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110155970A (en) * | 2019-06-12 | 2019-08-23 | 攀枝花学院 | Phosphorus ore micro mist pelletizing and preparation method thereof |
| CN113789441A (en) * | 2021-08-06 | 2021-12-14 | 湖南德景源科技有限公司 | Combined leaching process of cobalt-sulfur concentrate and cobalt hydroxide ore |
| CN115094245A (en) * | 2022-06-22 | 2022-09-23 | 中化地质矿山总局地质研究院 | Method for synchronously recycling cobalt and iron from low-cobalt multi-metal sulfide ore |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101538645A (en) * | 2008-03-20 | 2009-09-23 | 张建宏 | Technique for roasting and dressing laterite nickel ore |
| CN102534194A (en) * | 2012-02-29 | 2012-07-04 | 北京矿冶研究总院 | Method for producing ferronickel from laterite-nickel ore |
| CN103555968A (en) * | 2013-10-23 | 2014-02-05 | 北京矿冶研究总院 | Novel smelting process of cobalt-manganese multi-metal ore |
| CN104404260A (en) * | 2014-11-24 | 2015-03-11 | 北京神雾环境能源科技集团股份有限公司 | Method for separating valuable metals from copper slag |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101538645A (en) * | 2008-03-20 | 2009-09-23 | 张建宏 | Technique for roasting and dressing laterite nickel ore |
| CN102534194A (en) * | 2012-02-29 | 2012-07-04 | 北京矿冶研究总院 | Method for producing ferronickel from laterite-nickel ore |
| CN103555968A (en) * | 2013-10-23 | 2014-02-05 | 北京矿冶研究总院 | Novel smelting process of cobalt-manganese multi-metal ore |
| CN104404260A (en) * | 2014-11-24 | 2015-03-11 | 北京神雾环境能源科技集团股份有限公司 | Method for separating valuable metals from copper slag |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110155970A (en) * | 2019-06-12 | 2019-08-23 | 攀枝花学院 | Phosphorus ore micro mist pelletizing and preparation method thereof |
| CN113789441A (en) * | 2021-08-06 | 2021-12-14 | 湖南德景源科技有限公司 | Combined leaching process of cobalt-sulfur concentrate and cobalt hydroxide ore |
| CN115094245A (en) * | 2022-06-22 | 2022-09-23 | 中化地质矿山总局地质研究院 | Method for synchronously recycling cobalt and iron from low-cobalt multi-metal sulfide ore |
| CN115094245B (en) * | 2022-06-22 | 2023-09-29 | 中化地质矿山总局地质研究院 | Method for synchronously recycling cobalt and iron from low-cobalt multi-metal sulfide ore |
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