CN104815760A - Collecting agent for magnetic impurity-contained copper oxide ore flotation process - Google Patents
Collecting agent for magnetic impurity-contained copper oxide ore flotation process Download PDFInfo
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Abstract
The invention relates to a collecting agent for a magnetic impurity-contained copper oxide ore flotation process. The collecting agent is a combined collecting agent; and the combined collecting agent consists of 96-576 weight parts of pentyl xanthate and 64-384 weight parts of 4-sodium diphenylaminesulfonate. The collecting agent for the magnetic impurity-contained copper oxide ore flotation process is strong in collecting capacity of the collecting agent and high in recovery rate of copper ores.
Description
Technical field
The present invention relates to a kind of collecting agent for the Oxide Copper Ore Flotation technique containing magnetic impurity.
Background technology
In the copper resource of China, cupric oxide ore accounts for 1/4th.Oxidized zone is arranged at most of copper deposit top, and the formation even had is big-and-middle-sized cupric oxide mineral deposit independently.For this reason, development and utilization cupric oxide ore, the development for China's Copper Processing Industry is significant.
Cupric oxide ore often clay content is higher, and granularity is comparatively thin, easily cause in floatation process chats amount large, produce unstable, the drawbacks such as floating agent consumption is large, manufacturing cost is high, its process is one of difficult problem of domestic and international ore dressing field always.Lot of experiments result of study shows, the comparatively pure copper oxide mineral of composition as: malachite, chessy copper etc. just can obtain the cupric oxide concentrate compared with high-grade and the rate of recovery by simple sulfide flotation method.But the floatability being mixed into the copper oxide mineral of Fe, Ni, Co, Mn magnetic impurity by absorption or machinery is deteriorated, and conventional flotation medicament is difficult to effectively reclaim copper mine.
Summary of the invention
The present invention solves, the technical problems such as the refractory copper oxide mineral beneficiation concentrate grade containing magnetic impurity is low, the rate of recovery is low.
Technical scheme of the present invention is, a kind of collecting agent for the Oxide Copper Ore Flotation technique containing magnetic impurity is provided, described collecting agent is combined capturing and collecting agent, and this combined capturing and collecting agent is that penta xanthate of 96 ~ 576 parts and the 4-diphenylamine sulfonic acid sodium salt of 64 ~ 384 parts form by weight portion.
Further, in described combined capturing and collecting agent, the weight ratio of penta xanthate and 4-diphenylamine sulfonic acid sodium salt is (1 ~ 2) ︰ 1.
Further, in described combined capturing and collecting agent, the weight ratio of penta xanthate and 4-diphenylamine sulfonic acid sodium salt is 3 ︰ 2.
The present invention adopts better selective, the collecting agent that collecting ability is strong, open circuit flows is containing the refractory copper oxide mineral of magnetic impurity, obtain refractory copper oxide rough concentrate, adopt the technique that low intensity magnetic separation-high intensity magnetic separation combines again, improve the grade of magnetic separation cupric oxide concentrate to greatest extent, thus reach the object improving cupric oxide concentrate grade and the rate of recovery.
The ore-dressing technique of the cupric oxide ore containing magnetic impurity that the present invention adopts comprises the following steps: levigate for raw ore extremely-0.074mm is accounted for 55 ~ 90% by (1); (2) easily select cupric oxide to roughly select to the raw ore after levigate, easily selected cupric oxide rougher concentration and Yi Xuan cupric oxide rougher tailings; (3) carry out selectedly easily being selected cupric oxide concentrate to the described cupric oxide rougher concentration that easily selects; The described cupric oxide rougher tailings that easily selects is scanned, is easily selected cupric oxide to scan mine tailing; (4) easily select cupric oxide to scan mine tailing to carry out refractory copper oxide flotation and obtain refractory copper oxide flotation concentrate to described; The collecting agent that described refractory copper oxide flotation uses is combined capturing and collecting agent, and described combined capturing and collecting agent is made up of penta xanthate and 4-diphenylamine sulfonic acid sodium salt; (5) successively low intensity magnetic separation is carried out to described refractory copper oxide flotation concentrate, high-gradient magnetic separation obtains cupric oxide magnetic concentrate; The magnetic field intensity of described low intensity magnetic separation is 0.2 ~ 0.5 T; The background magnetic field intensity of high-gradient magnetic separation is 0.7 ~ 1.2T.
In ore-dressing technique of the present invention, output easily select the grade of cupric oxide concentrate and cupric oxide magnetic concentrate all higher, for hydrometallurgy provides good raw material.
Collecting agent of the present invention can carry out flotation to the refractory copper oxide ore of the magnetic impurity such as iron content, manganese, refractory copper oxide ore and the low cupric oxide ore of copper grade, as the mine tailing of the preliminary flotation of cupric oxide, its copper grade is low, and traditional collecting agent penta xanthate is difficult to the collecting effect played.
In the present invention, in described cupric oxide ore, add combined capturing and collecting agent, in combined capturing and collecting agent except penta xanthate, be also added with a kind of new collecting medicament: 4-diphenylamine sulfonic acid sodium salt.Nitrogen-atoms on 4-diphenylamine sulfonic acid sodium molecule does not share only to electronics as joining for body, the Cu solely to electronics and refractory copper ore thing surface is provided
2+cation is shared, and is combined into more stable chelate with covalent bond form; Meanwhile, the sulfonate radical on 4-diphenylamine sulfonic acid sodium molecule can with the Cu on copper oxide mineral surface
2+, Fe
3+, Ni
2+, Co
2+, Mn
4+form insoluble chemical compound, these two kinds of modes act on refractory copper oxide mineral surface simultaneously, make that mineral surfaces is hydrophobic to float.
The invention has the advantages that: this beneficiation reagent can make some refractory copper oxide mineral be recycled utilization, is not only conducive to saving resource, and significant for the nervous situation alleviating Mineral Resources in China.
Accompanying drawing explanation
Fig. 1 represents the schematic flow sheet of the ore-dressing technique used in the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment and comparative example, the invention will be further described.
Embodiment 1
Raw ore is selected from certain cupric oxide ore external, cupric 2.98%, iron content 5.17%, copper oxygenation efficiency more than 95%, copper mineral is mainly malachite, chrysocolla, copper iron silica bond, warringtonite, chessy copper etc., and the absorption of part copper mineral or machinery are mixed into iron, manganese impurity.
Combined capturing and collecting agent of the present invention is used for following ore-dressing technique, comprises the following steps:
(1) ore grinding: raw ore ore grinding accounts for 75% to fineness-0.074mm;
(2) easily copper oxide ore is roughly selected: by per ton to ore deposit, amount of sodium sulfide is 1600g, stirs 2 minutes, penta xanthate 120g, Aethoxy Sklerol 20g, stirs 1 minute, flotation time 3 minutes; Easily selected cupric oxide rougher concentration and Yi Xuan cupric oxide rougher tailings;
(3) easily selecting cupric oxide rougher tailings to scan through twice is easily selected cupric oxide to scan mine tailing, by per ton to ore deposit, wherein scans in a process, amount of sodium sulfide is 300g, stirs 2 minutes, penta xanthate 40g, Aethoxy Sklerol 10g, stirs 1 minute, flotation time 2 minutes; Scan in two processes, amount of sodium sulfide is 200g, stirs 2 minutes, penta xanthate 20g, Aethoxy Sklerol 10g, stirs 1 minute, flotation time 2 minutes, obtains and easily selects cupric oxide flotation tailing; Easily select cupric oxide rough concentrate selected through three blank, obtain and easily select cupric oxide concentrate;
(4) refractory copper oxide flotation: step (3) easily selected cupric oxide flotation tailing and refractory copper oxide flotation to ore deposit.To easily select cupric oxide flotation tailing to carry out three refractory copper oxide flotation, by per ton to ore deposit, in refractory copper oxide flotation one, amount of sodium sulfide be 1600g, stir 2 minutes, penta xanthate 160g, 4-diphenylamine sulfonic acid sodium salt 107g, Aethoxy Sklerol 10g, stirs 1 minute, flotation time 3 minutes; In refractory copper oxide flotation two, amount of sodium sulfide is 1200g, stirs 2 minutes, penta xanthate 120g, 4-diphenylamine sulfonic acid sodium salt 80g, Aethoxy Sklerol 10g, stirs 1 minute, flotation time 2 minutes; In refractory copper oxide flotation three, amount of sodium sulfide is 800g, stirs 2 minutes, penta xanthate 80g, 4-diphenylamine sulfonic acid sodium salt 53g, Aethoxy Sklerol 10g, stirs 1 minute, flotation time 2 minutes; Refractory copper oxide flotation concentrate and refractory copper oxide flotation tailing is obtained after three refractory copper oxide flotation;
(5) low intensity magnetic separation a: low intensity magnetic separation is carried out to refractory copper oxide flotation concentrate, magnetic field intensity is 0.3T, and low intensity magnetic separation concentrate directly throws tail, and low intensity magnetic separation mine tailing carries out high-gradient magnetic separation;
(6) high-gradient magnetic separation: low intensity magnetic separation mine tailing carries out twice high-gradient magnetic separation, background magnetic field intensity is respectively 0.8T and 1T, and obtain cupric oxide magnetic concentrate, magnetic middling ore, magnetic tailing and flotation tailing merge as mine tailing.
Embodiment 1 result of the test is in table 1.
Table 1 embodiment 1 result of the test (%)
The content of embodiment 1 cupric oxide magnetic concentrate CaO, MgO is respectively 0.65%, 0.81%, and the content of acid consumpting substance CaO, MgO is lower, can provide good raw material for hydrometallurgy.
Embodiment 2
Raw ore is selected from the cupric oxide ore that a kind of iron content in somewhere, Tibet is high, sludge content is large, this ore deposit cupric 3.08%, iron content 17.85%, copper oxygenation efficiency about 97%, copper mineral is mainly malachite, chessy copper, delafossite, chrysocolla, copper iron silica bond etc., is mixed into iron in a large amount of copper mineral with absorption or machinery.
Combined capturing and collecting agent of the present invention is used for following ore-dressing technique, comprises the following steps:
(1) ore grinding: raw ore ore grinding accounts for 80% to fineness-0.074mm;
(2) easily copper oxide ore is roughly selected: by per ton to ore deposit, amount of sodium sulfide is 2400g, stirs 2 minutes, penta xanthate 160g, Aethoxy Sklerol 30g, stirs 1 minute, flotation time 4 minutes; Easily selected cupric oxide rougher concentration and Yi Xuan cupric oxide rougher tailings;
(3) easily selecting cupric oxide rougher tailings to scan through twice is easily selected cupric oxide to scan mine tailing, by per ton to ore deposit, wherein scans in a process, amount of sodium sulfide is 600g, stirs 2 minutes, penta xanthate 60g, Aethoxy Sklerol 20g, stirs 1 minute, flotation time 2 minutes; Scan in two processes, amount of sodium sulfide is 400g, stirs 2 minutes, penta xanthate 40g, Aethoxy Sklerol 10g, stirs 1 minute, flotation time 2 minutes, obtains and easily selects cupric oxide flotation tailing; Easily select cupric oxide rough concentrate selected through three blank, obtain and easily select cupric oxide concentrate;
(4) refractory copper oxide flotation: step (3) easily selected cupric oxide flotation tailing and refractory copper oxide flotation to ore deposit.To easily select cupric oxide flotation tailing to carry out three refractory copper oxide flotation, by per ton to ore deposit, in refractory copper oxide flotation one, amount of sodium sulfide be 1800g, stir 2 minutes, penta xanthate 120g, 4-diphenylamine sulfonic acid sodium salt 80g, Aethoxy Sklerol 10g, stirs 1 minute, flotation time 3 minutes; In refractory copper oxide flotation two, amount of sodium sulfide is 1200g, stirs 2 minutes, penta xanthate 80g, 4-diphenylamine sulfonic acid sodium salt 53g, Aethoxy Sklerol 10g, stirs 1 minute, flotation time 2 minutes; In refractory copper oxide flotation three, amount of sodium sulfide is 800g, stirs 2 minutes, penta xanthate 60g, 4-diphenylamine sulfonic acid sodium salt 40g, Aethoxy Sklerol 10g, stirs 1 minute, flotation time 2 minutes; Refractory copper oxide flotation concentrate and refractory copper oxide flotation tailing is obtained after three refractory copper oxide flotation;
(5) low intensity magnetic separation: refractory copper oxide rough concentrate carries out a low intensity magnetic separation, and magnetic field intensity is 0.25T, and magnetic concentrate directly throws tail, and magnetic tailing carries out high-gradient magnetic separation;
(6) high-gradient magnetic separation: low intensity magnetic separation mine tailing carries out twice high-gradient magnetic separation, background magnetic field intensity is respectively 0.8T and 0.9T, and obtain cupric oxide magnetic concentrate, magnetic middling ore, magnetic tailing and flotation tailing merge as mine tailing.
Embodiment 2 result of the test is in table 2.
Table 2 embodiment 2 result of the test (%)
In embodiment 2, the content of high intensity magnetic separation concentrate CaO, MgO is respectively 0.71%, 0.92%.This ore deposit iron content is high, and the vulcanization flotation concentrate rate of recovery is low, is significantly improve the rate of recovery of copper mineral by magnetic separation.
Comparative example
The difference of comparative example and embodiment 2 is only step (4) refractory copper oxide flotation, it only adopts penta xanthate as collecting agent, by per ton to ore deposit, refractory copper oxide ore flotation one amount of sodium sulfide is 1800g, stir 2 minutes, penta xanthate 200g, Aethoxy Sklerol 10g, stir 1 minute, flotation time 3 minutes; Refractory copper oxide ore flotation sodium disulfide consumption is 1200g, stirs 2 minutes, penta xanthate 133g, Aethoxy Sklerol 10g, stirs 1 minute, flotation time 2 minutes; The trisulfides sodium consumption of refractory copper oxide ore flotation is 800g, stirs 2 minutes, penta xanthate 100g, Aethoxy Sklerol 10g, stirs 1 minute, flotation time 2 minutes; Three refractory copper oxide flotation obtain refractory copper oxide flotation concentrate and refractory copper oxide flotation tailing.
Comparative example 1 result of the test is in table 3.
Table 3 comparative example 1 result of the test (%)
Compared with embodiment 2 result, only adopt penta xanthate as collecting agent, grade and the rate of recovery of cupric oxide magnetic concentrate all significantly reduce.
Claims (3)
1., for a collecting agent for the Oxide Copper Ore Flotation technique containing magnetic impurity, it is characterized in that, described collecting agent is combined capturing and collecting agent, and this combined capturing and collecting agent by weight, is made up of penta xanthate of 96 ~ 576 parts and the 4-diphenylamine sulfonic acid sodium salt of 64 ~ 384 parts.
2. collecting agent as claimed in claim 1, it is characterized in that, in described combined capturing and collecting agent, the weight ratio of penta xanthate and 4-diphenylamine sulfonic acid sodium salt is (1 ~ 2) ︰ 1.
3. collecting agent as claimed in claim 1, it is characterized in that, in described combined capturing and collecting agent, the weight ratio of penta xanthate and 4-diphenylamine sulfonic acid sodium salt is 1.5 ︰ 1.
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Cited By (2)
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| CN105363565A (en) * | 2015-11-11 | 2016-03-02 | 湖南有色金属研究院 | Malachite catalytic activating agent and method for flotation of malachite through malachite catalytic activating agent |
| CN105435952A (en) * | 2015-11-09 | 2016-03-30 | 湖南有色金属研究院 | Method for recovering high-pelitic and high-iron copper oxide ore hard to treat |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105435952A (en) * | 2015-11-09 | 2016-03-30 | 湖南有色金属研究院 | Method for recovering high-pelitic and high-iron copper oxide ore hard to treat |
| CN105363565A (en) * | 2015-11-11 | 2016-03-02 | 湖南有色金属研究院 | Malachite catalytic activating agent and method for flotation of malachite through malachite catalytic activating agent |
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