CN103433124B - Process for comprehensively recovering ferrum, molybdenum and sericite from gold concentrator tailings - Google Patents

Process for comprehensively recovering ferrum, molybdenum and sericite from gold concentrator tailings Download PDF

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CN103433124B
CN103433124B CN201310428190.2A CN201310428190A CN103433124B CN 103433124 B CN103433124 B CN 103433124B CN 201310428190 A CN201310428190 A CN 201310428190A CN 103433124 B CN103433124 B CN 103433124B
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molybdenum
sericite
magnetic
flotation
kerosene
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CN103433124A (en
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胡海祥
李广
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Jiangxi University of Science and Technology
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Jiangxi University of Science and Technology
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Abstract

The invention relates to a mineral separating process for recovering useful components in tailings and particularly relates to a process for comprehensively recovering ferrum, molybdenum and sericite from gold concentrator tailings. The ferrum, molybdenum and sericite in the gold concentrator tailings are sufficiently recovered by using primary grinding, primary magnetic separation and secondary flotation processes, the recovery rate of Fe in the obtained magnetic concentrate is larger than 75%, the recovery rate of Mo in a molybdenum concentrate is larger than 70%, and the recovery rate of the sericite in a sericite concentrate is larger than 61%. The process provided by the invention is advanced, stable in operation and capable of increasing the utilization efficiency of resources of the gold concentrator tailings.

Description

The technique of a kind of gold concentrator tailings comprehensive recovery of iron, molybdenum, sericite
Technical field
The present invention relates to the technique of a kind of gold concentrator tailings comprehensive recovery of iron, molybdenum, sericite, the tailings comprehensive being specially adapted to the flotation of Quartz Vein Type auriferous pyrite reclaims iron, molybdenum, sericite.
Background technology
Along with the development and utilization of mineral resources, resource is day by day exhausted, and mine tailing is subject to more multiple looking as secondary resource, and not only floor space is large to discharge a large amount of mine tailings, causes pollution to environment simultaneously.Reclaim useful constituent in mine tailing to be conducive to improving the level of resources utilization, reduce floor space, can be industrial development and more raw materials are provided.Carrying out comprehensive utilization of tailing is improve one of the most promising developing direction of open pit mining efficiency.Gold concentrator tailings has the features such as quantity is large, complicated component, wide variety.In the mine tailing of Quartz Vein Type auriferous pyrite flotation, there are the mineral such as sericite, molybdenite, wulfenite, magnetic iron ore, calcite, wherein sericite, molybdenite, wulfenite, magnetic iron ore have the potential characteristic of high additive value, useful constituent in these mine tailings does not reclaim, and can cause huge waste.Work out technically reliable, economic benefit that economically viable recovery process can improve enterprise, fully reclaim useful constituent again, improve the comprehensive utilization of resources efficiency of gold concentrator tailings.
Summary of the invention
The object of this invention is to provide the technique of a kind of gold concentrator tailings comprehensive recovery of iron, molybdenum, sericite, make full use of mineral resources, improve the level of resources utilization.
Technical process of the present invention: gold concentrator tailings (1) → ore grinding (2) → ore discharge product (3), ore discharge product (3) fineness accounts for 85.15 ~ 87.31% for-0.074mm; Ore discharge product (3) → mono-time magnetic separation (4) → secondary magnetic separation (5), obtains magnetic concentrate (6); Magnetic tailing slurry (7) and secondary magnetic tailing slurry (8) merge composition select molybdenum to ore deposit (9), select the roughly selecting (10) → molybdenum scan (19) to ore deposit (9) → molybdenum of molybdenum, molybdenum rough concentrate (30) → mono-time molybdenum is selected → and secondary molybdenum is selected → and tri-molybdenums are selected, molybdenum concntrate (14), the chats (15,18) of molybdenum flotation returns that molybdenum roughly selects (10), the chats (16) of molybdenum flotation returns molybdenum selected (11), the chats (17) of molybdenum flotation returns secondary molybdenum selected (12); Molybdenum flotation circuit underflow out (20) → sericite is roughly selected (21) → sericite and is scanned (28), sericite rough concentrate (31) → mono-time sericite selected (22) → secondary sericite selected (23), obtain sericite concentrate (24), the chats (25,27) of sericite flotation returns sericite and roughly selects (21), and the chats (26) of sericite flotation returns a sericite selected (22); Sericite flotation circuit underflow out (29) is mine tailing.
Technical scheme of the present invention: the technique of a kind of gold concentrator tailings comprehensive recovery of iron, molybdenum, sericite, comprises the steps:
Step A: ore grinding, gold concentrator tailings enters ore grinding, and the ore discharge product fineness obtaining ore grinding accounts for 85.15 ~ 87.31% for-0.074mm;
Step B: iron magnetic concentration working, ore discharge product, via the magnetic concentration working of a magnetic separation, secondary magnetic separation composition, reclaims magnetic iron ore;
Step C: molybdenum flotation operation, magnetic tailing slurry and secondary magnetic tailing slurry merge composition select molybdenum to ore deposit, select molybdenum give ore deposit through adding scattered inhibitor (waterglass) successively, collecting agent (kerosene, isoamyl xanthate and butyl ammonium aerofloat), foaming agent (terpenic oil), via one roughing, triple cleaning, the flotation circuit of once purging selection composition, secondary molybdenum is selected adds scattered inhibitor (waterglass), adjusting agent (vulcanized sodium), molybdenum is scanned and is added collecting agent (kerosene, isoamyl xanthate and butyl ammonium aerofloat), one time molybdenum is selected, three selected not adding medicines of molybdenum, reclaim molybdenum ore,
D step: sericite flotation operation, molybdenum flotation circuit underflow out adds pH adjusting agent (sulfuric acid), scattered inhibitor (waterglass, ferric trichloride), collecting agent (lauryl amine, octadecylamine and kerosene), foaming agent (terpenic oil) successively, via the flotation circuit of one roughing, twice selected, once purging selection composition, secondary sericite is selected adds collecting agent (lauryl amine, octadecylamine and kerosene), sericite is scanned and is added collecting agent (lauryl amine, octadecylamine and kerosene), a selected not adding medicine of sericite, reclaims sericite;
It is mine tailing that sericite scans loop underflow out.
The technological process that the present invention is detailed and step and condition:
Step A: ore grinding, gold concentrator tailings (1) enters ore grinding (2), and obtain the ore discharge product (3) of ore grinding (2), the fineness of ore discharge product (3) accounts for 85.15 ~ 87.31% for-0.074mm;
Step B: iron magnetic concentration working, the magnetic concentration working that ore discharge product (3) forms via magnetic separation (4), a secondary magnetic separation (5), the magnetic field intensity of a magnetic separation is 151.1kA/m, the magnetic field intensity of secondary magnetic separation is 79.5kA/m, obtains magnetic concentrate (6);
Step C: molybdenum flotation operation, magnetic tailing slurry (7) and secondary magnetic tailing slurry (8) merge composition select molybdenum to ore deposit (9), that selects molybdenum adds scattered inhibitor (waterglass: 300 ~ 400g/t) successively to ore deposit (9), collecting agent (kerosene: 60 ~ 80g/t, isoamyl xanthate: 50 ~ 60g/t, butyl ammonium aerofloat: 20 ~ 30g/t), foaming agent (terpenic oil: 20 ~ 30g/t), roughly selects (10) via molybdenum, a molybdenum selected (11), secondary molybdenum selected (12), three molybdenums selected (13), the flotation circuit that molybdenum is scanned (19) forms, secondary molybdenum selected (12) adds scattered inhibitor (waterglass: 200 ~ 250g/t), adjusting agent (vulcanized sodium: 150 ~ 200g/t), molybdenum is scanned (19) adds collecting agent (kerosene: 30 ~ 40g/t, isoamyl xanthate: 25 ~ 30g/t, butyl ammonium aerofloat: 10 ~ 15g/t), and one time molybdenum is selected, three selected not adding medicines of molybdenum, the chats (15 of molybdenum flotation, 16, 17, 18) turn back to an operation successively, after three times molybdenum is selected, obtain molybdenum concntrate (14),
D step: sericite flotation operation, molybdenum flotation circuit underflow out (20) adds pH adjusting agent (sulfuric acid: 800 ~ 1000g/t) successively makes slurry pH be 2.0 ~ 3.0, scattered inhibitor (waterglass: 150 ~ 200g/t, ferric trichloride 20g/t), collecting agent (lauryl amine: 100 ~ 120g/t, octadecylamine: 200 ~ 220g/t, kerosene: 30g/t), foaming agent (terpenic oil: 20 ~ 30g/t), roughly select (21) via sericite, a sericite selected (22), secondary sericite selected (23), the flotation circuit that sericite is scanned (28) forms, secondary sericite selected (23) adds collecting agent (lauryl amine: 50 ~ 60g/t, octadecylamine: 100 ~ 110g/t, kerosene: 15g/t), sericite is scanned (28) adds collecting agent (lauryl amine: 50 ~ 60g/t, octadecylamine: 100 ~ 110g/t, kerosene: 15g/t), a selected not adding medicine of sericite, the chats (25 of sericite flotation, 26, 27) operation is turned back to successively, sericite concentrate (24) is obtained after secondary sericite is selected,
It is mine tailing that sericite scans loop underflow out (29).
Present invention process adopts primary grinding, a stages of magnetic separation, two-stage flotation technique, can obtain high-quality iron ore concentrate, magnetic concentrate Fe grade >60%, Fe operation recovery >75%; Adopt conventional combination medicament, molybdenum concntrate Mo grade >45%, Mo operation recovery >70%; Sericite concentrate, containing sericite >68%, reaches three grades of product requirements, sericite operation recovery >61%.Present invention process is advanced, and stable operation, has fully reclaimed the useful constituent of gold concentrator tailings.
Accompanying drawing explanation
Accompanying drawing is process chart of the present invention.
Detailed description of the invention
As shown in drawings, below in conjunction with specific embodiment, the invention will be further described, and involved percentage is mass percent.Gold concentrator tailings chemical composition used is: SiO265.33%, Mo 0.034%, magnetic iron ore content 2.34%, sericite content 8.21%.
Embodiment 1:
Step A: ore grinding, gold concentrator tailings 1 enters ore grinding 2, and obtain the ore discharge product 3 of ore grinding 2, the fineness of ore discharge product 3 accounts for 85.15% for-0.074mm;
Step B: iron magnetic concentration working, the magnetic concentration working that ore discharge product 3 forms via a magnetic separation 4, secondary magnetic separation 5, the magnetic field intensity of a magnetic separation is 151.1kA/m, and the magnetic field intensity of secondary magnetic separation is 79.5kA/m, obtains magnetic concentrate 6;
Step C: molybdenum flotation operation, magnetic tailing slurry 7 and secondary magnetic tailing slurry 8 merge composition select molybdenum to ore deposit 9, that selects molybdenum adds scattered inhibitor (waterglass: 300g/t) successively to ore deposit 9, collecting agent (kerosene: 60g/t, isoamyl xanthate: 55g/t, butyl ammonium aerofloat: 30g/t), foaming agent (terpenic oil: 20g/t), 10 are roughly selected via molybdenum, a molybdenum selected 11, secondary molybdenum selected 12, three molybdenums selected 13, molybdenum scans the flotation circuit of 19 compositions, secondary molybdenum selected 12 adds scattered inhibitor (waterglass: 200g/t), adjusting agent (vulcanized sodium: 180g/t), molybdenum is scanned 19 and is added collecting agent (kerosene: 40g/t, isoamyl xanthate: 30g/t, butyl ammonium aerofloat: 15g/t), one time molybdenum is selected, three selected not adding medicines of molybdenum, the chats 15 of molybdenum flotation, the chats 16 of molybdenum flotation, the chats 17 of molybdenum flotation, the chats 18 of molybdenum flotation turns back to an operation successively, molybdenum concntrate 14 is obtained after three times molybdenum is selected,
D step: sericite flotation operation, molybdenum flotation circuit underflow 20 out adds pH adjusting agent (sulfuric acid: 800g/t) successively makes slurry pH be 3.0, scattered inhibitor (waterglass: 180g/t, ferric trichloride 20g/t), collecting agent (lauryl amine: 100g/t, octadecylamine: 200g/t, kerosene: 30g/t), foaming agent (terpenic oil: 30g/t), 21 are roughly selected via sericite, a sericite selected 22, secondary sericite selected 23, sericite scans the flotation circuit of 28 compositions, wherein secondary sericite selected 23 adds collecting agent (lauryl amine: 50g/t, octadecylamine: 100g/t, kerosene: 15g/t), sericite is scanned 28 and is added collecting agent (lauryl amine: 50g/t, octadecylamine: 100g/t, kerosene: 15g/t), a selected not adding medicine of sericite, the chats 25 of sericite flotation, the chats 26 of sericite flotation, the chats 27 of sericite flotation turns back to an operation successively, sericite concentrate 24 is obtained after secondary sericite is selected,
It is mine tailing that sericite scans loop underflow 29 out.
The technic index that embodiment 1 obtains is:
Magnetic concentrate: Fe grade 60.15%, Fe operation recovery 75.23%;
Molybdenum concntrate: Mo grade 45.20%, Mo operation recovery 70.25%;
Sericite concentrate: sericite content 68.48%, sericite operation recovery 61.38%.
Embodiment 2:
Step A: ore grinding, gold concentrator tailings 1 enters ore grinding 2, and obtain the ore discharge product 3 of ore grinding 2, the fineness of ore discharge product 3 accounts for 87.31% for-0.074mm;
Step B: iron magnetic concentration working, the magnetic concentration working that ore discharge product 3 forms via a magnetic separation 4, secondary magnetic separation 5, the magnetic field intensity of a magnetic separation is 151.1kA/m, and the magnetic field intensity of secondary magnetic separation is 79.5kA/m, obtains magnetic concentrate 6;
Step C: molybdenum flotation operation, magnetic tailing slurry 7 and secondary magnetic tailing slurry 8 merge composition select molybdenum to ore deposit 9, that selects molybdenum adds scattered inhibitor (waterglass: 400g/t) successively to ore deposit 9, collecting agent (kerosene: 80g/t, isoamyl xanthate: 55g/t, butyl ammonium aerofloat: 20g/t), foaming agent (terpenic oil: 20g/t), 10 are roughly selected via molybdenum, a molybdenum selected 11, secondary molybdenum selected 12, three molybdenums selected 13, molybdenum scans the flotation circuit of 19 compositions, secondary molybdenum selected 12 adds scattered inhibitor (waterglass: 250g/t), adjusting agent (vulcanized sodium: 180g/t), molybdenum is scanned 19 and is added collecting agent (kerosene: 40g/t, isoamyl xanthate: 30g/t, butyl ammonium aerofloat: 10g/t), one time molybdenum is selected, three selected not adding medicines of molybdenum, the chats 15 of molybdenum flotation, the chats 16 of molybdenum flotation, the chats 17 of molybdenum flotation, the chats 18 of molybdenum flotation turns back to an operation successively, molybdenum concntrate 14 is obtained after three times molybdenum is selected,
D step: sericite flotation operation, molybdenum flotation circuit underflow 20 out adds pH adjusting agent (sulfuric acid: 1000g/t) successively makes slurry pH be 2.0, scattered inhibitor (waterglass: 180g/t, ferric trichloride 20g/t), collecting agent (lauryl amine: 120g/t, octadecylamine: 220g/t, kerosene: 30g/t), foaming agent (terpenic oil: 30g/t), 21 are roughly selected via sericite, a sericite selected 22, secondary sericite selected 23, sericite scans the flotation circuit of 28 compositions, secondary sericite selected 23 adds collecting agent (lauryl amine: 60g/t, octadecylamine: 110g/t, kerosene: 15g/t), sericite is scanned 28 and is added collecting agent (lauryl amine: 60g/t, octadecylamine: 110g/t, kerosene: 15g/t), the chats 25 of sericite flotation, the chats 26 of sericite flotation, the chats 27 of sericite flotation turns back to an operation successively, sericite concentrate 24 is obtained after secondary sericite is selected,
It is mine tailing that sericite scans loop underflow 29 out.
The main technique index that embodiment 2 obtains is suitable with embodiment 1.
The performance of above two embodiments shows, present invention process is advanced, and stable operation, has fully reclaimed the useful component in gold concentrator tailings, improve the level of resources utilization.

Claims (2)

1. a technique for gold concentrator tailings comprehensive recovery of iron, molybdenum, sericite, comprises the steps:
Step A: ore grinding, gold concentrator tailings (1) enters ore grinding (2), and obtain the ore discharge product (3) of ore grinding (2), the fineness of ore discharge product (3) accounts for 85.15 ~ 87.31% for-0.074mm;
Step B: iron magnetic concentration working, the magnetic concentration working that ore discharge product (3) forms via magnetic separation (4), a secondary magnetic separation (5), the magnetic field intensity of a magnetic separation is 151.1kA/m, the magnetic field intensity of secondary magnetic separation is 79.5kA/m, obtains magnetic concentrate (6);
Step C: molybdenum flotation operation, magnetic tailing slurry (7) and secondary magnetic tailing slurry (8) merge composition select molybdenum to ore deposit (9), that selects molybdenum adds scattered inhibitor waterglass successively to ore deposit (9): 300 ~ 400g/t, collecting agent: kerosene: 60 ~ 80g/t, isoamyl xanthate: 50 ~ 60g/t, butyl ammonium aerofloat: 20 ~ 30g/t, foaming agent terpenic oil: 20 ~ 30g/t, roughly selects (10) via molybdenum, a molybdenum selected (11), secondary molybdenum selected (12), three molybdenums selected (13), the flotation circuit that molybdenum is scanned (19) forms, secondary molybdenum selected (12) adds scattered inhibitor waterglass: 200 ~ 250g/t, adjusting agent vulcanized sodium: 150 ~ 200g/t, molybdenum is scanned, and (19) add collecting agent: kerosene: 30 ~ 40g/t, isoamyl xanthate: 25 ~ 30g/t, butyl ammonium aerofloat: 10 ~ 15g/t, one time molybdenum is selected, three selected not adding medicines of molybdenum, the chats (15 of molybdenum flotation, 16, 17, 18) turn back to an operation successively, after three times molybdenum is selected, obtain molybdenum concntrate (14),
D step: sericite flotation operation, molybdenum flotation circuit underflow out (20) adds pH adjusting agent sulfuric acid successively: 800 ~ 1000g/t makes slurry pH be 2.0 ~ 3.0, scattered inhibitor: waterglass: 150 ~ 200g/t, ferric trichloride: 20g/t, collecting agent: lauryl amine: 100 ~ 120g/t, octadecylamine: 200 ~ 220g/t, kerosene: 30g/t, foaming agent terpenic oil: 20 ~ 30g/t, roughly selects (21) via sericite, a sericite selected (22), secondary sericite selected (23), the flotation circuit that sericite is scanned (28) forms, secondary sericite selected (23) adds collecting agent: lauryl amine: 50 ~ 60g/t, octadecylamine: 100 ~ 110g/t, kerosene: 15g/t, sericite is scanned, and (28) add collecting agent: lauryl amine: 50 ~ 60g/t, octadecylamine: 100 ~ 110g/t, kerosene: 15g/t, a selected not adding medicine of sericite, the chats (25 of sericite flotation, 26, 27) turn back to an operation successively, after secondary sericite is selected, obtains sericite concentrate (24),
It is mine tailing that sericite scans loop underflow out (29).
2. the technique of a kind of gold concentrator tailings comprehensive recovery of iron according to claim 1, molybdenum, sericite, is characterized in that: more detailed step is as follows:
Step A: ore grinding, gold concentrator tailings (1) enters ore grinding (2), and obtain the ore discharge product (3) of ore grinding (2), the fineness of ore discharge product (3) accounts for 85.15% for-0.074mm;
Step B: iron magnetic concentration working, the magnetic concentration working that ore discharge product (3) forms via magnetic separation (4), a secondary magnetic separation (5), the magnetic field intensity of a magnetic separation is 151.1kA/m, the magnetic field intensity of secondary magnetic separation is 79.5kA/m, obtains magnetic concentrate (6);
Step C: molybdenum flotation operation, magnetic tailing slurry (7) and secondary magnetic tailing slurry (8) merge composition select molybdenum to ore deposit (9), that selects molybdenum adds scattered inhibitor waterglass successively to ore deposit (9): 300g/t, collecting agent: kerosene: 60g/t, isoamyl xanthate: 55g/t, butyl ammonium aerofloat: 30g/t, foaming agent terpenic oil: 20g/t, roughly select (10) via molybdenum, a molybdenum selected (11), secondary molybdenum selected (12), three molybdenums selected (13), the flotation circuit that molybdenum is scanned (19) forms, secondary molybdenum selected (12) adds scattered inhibitor waterglass: 200g/t, adjusting agent vulcanized sodium: 180g/t, molybdenum is scanned, and (19) add collecting agent: kerosene: 40g/t, isoamyl xanthate: 30g/t, butyl ammonium aerofloat: 15g/t, one time molybdenum is selected, three selected not adding medicines of molybdenum, the chats (15 of molybdenum flotation, 16, 17, 18) operation is turned back to successively, molybdenum concntrate (14) is obtained after three times molybdenum is selected,
D step: sericite flotation operation, molybdenum flotation circuit underflow out (20) adds pH adjusting agent sulfuric acid successively: 800g/t makes slurry pH be 3.0, scattered inhibitor: waterglass: 180g/t, ferric trichloride 20g/t, collecting agent: lauryl amine: 100g/t, octadecylamine: 200g/t, kerosene: 30g/t, foaming agent terpenic oil: 30g/t, roughly select (21) via sericite, a sericite selected (22), secondary sericite selected (23), the flotation circuit that sericite is scanned (28) forms, wherein secondary sericite selected (23) adds collecting agent: lauryl amine: 50g/t, octadecylamine: 100g/t, kerosene: 15g/t, sericite is scanned, and (28) add collecting agent: lauryl amine: 50g/t, octadecylamine: 100g/t, kerosene: 15g/t, a selected not adding medicine of sericite, the chats (25 of sericite flotation, 26, 27) operation is turned back to successively, sericite concentrate (24) is obtained after secondary sericite is selected,
It is mine tailing that sericite scans loop underflow out (29).
CN201310428190.2A 2013-09-18 2013-09-18 Process for comprehensively recovering ferrum, molybdenum and sericite from gold concentrator tailings Expired - Fee Related CN103433124B (en)

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