CN104785378A - Preparing method for tetrahedrite inhibitor - Google Patents
Preparing method for tetrahedrite inhibitor Download PDFInfo
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- CN104785378A CN104785378A CN201510227211.3A CN201510227211A CN104785378A CN 104785378 A CN104785378 A CN 104785378A CN 201510227211 A CN201510227211 A CN 201510227211A CN 104785378 A CN104785378 A CN 104785378A
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Abstract
A preparing method for a tetrahedrite inhibitor comprises the following steps that oxalic acid, sodium sulfite and water are mixed to obtain a solution 1 according to the mass proportion of oxalic acid, sodium sulfite and water being 2-3:3-4:6-8, waxberry tannin extract is added in the solution 1 according to the mass ratio of 1-2:3-7, and the mixture is stirred and dissolved to obtain a solution 2; calcium thioglycolatetrihydrate is added in the solution 2 according to the mass ratio of 1-2:1-5, the temperature of the solution 2 is controlled to range from 70 DEG C to 75 DEG C, the stirring reaction is kept for 1-1.5 h to obtain a solution 3, the solution 3 is sucked and filtered to obtain a viscous material, finally, the viscous material is dried under the temperature of 70-75 DEG C, and then the tetrahedrite inhibitor is obtained. The tetrahedrite can be restrained through the inhibitor prepared through the method, the copper pyrites and tetrahedrite are separated through floatation, and the content of antimony in copper concentrate is reduced.
Description
One, technical field
The present invention relates to a kind of preparation method of tetrahedrite inhibitor, in the copper concentrate particularly coexisted for chalcopyrite and tetrahedrite, suppresses preparation method and the application thereof of a kind of inhibitor of tetrahedrite when need reduce antimony content in copper concentrate.
Two, background technology
In some brass mineral deposits, usually contain other as other association copper sulfide minerals such as covellite, chalmersite, tetrahedrites, for the recovery of this kind of copper sulfide ore, current technique of preparing is quite ripe, and technical process is also comparatively simple.On the one hand the floatability of copper sulfide mineral is better, and on the other hand, in impure mineral except pyrite, mispickel etc. have certain interference to copper sulfide mineral flotation, other can not have an impact to copper sulfide mineral as the impure mineral such as silicon, calcium.Due to the existence of antimony in tetrahedrite, when electrolysis, overwhelming majority antimony exists in the form of an oxide, and in anodic dissolution processes, there occurs series reaction with the antimony that oxide form exists, they finally form oxide solid particulate, or be attached to anode surface, or being suspended in electrolyte, this type of solid matter, after disengaging anode surface, pollutes cathode copper at negative electrode mechanical entrainment.If removed by the antimony in copper concentrate before smelting, greatly electrolytic copper quality will be improved undoubtedly.
Three, summary of the invention
The object of the present invention is to provide a kind of preparation method of tetrahedrite inhibitor, the prepared inhibitor obtained can suppress the tetrahedrite in chalcopyrite and tetrahedrite bulk concentrate, reduces the antimony content in copper concentrate.
The present invention achieves the above object by the following technical solutions: a kind of preparation method of tetrahedrite inhibitor, comprise the steps: first to be oxalic acid in mass ratio by oxalic acid, sodium sulfite and water: sodium sulfite: water=2 ~ 3:3 ~ 4:6 ~ 8 are mixed to get solution 1, then myrica extract in mass ratio=1 ~ 2:3 ~ 7 are added in solution 1, be stirred to and dissolve to obtain solution 2; Then calcium mercaptoacetate in mass ratio=1 ~ 2:1 ~ 5 are added in solution 2, controlling solution 2 temperature is 70 ~ 75 DEG C, and stirring reaction keeps 1 ~ 1.5h to obtain solution 3, and solution 3 suction filtration is obtained dope, finally that dope is dry under 70 ~ 75 DEG C of conditions, be described tetrahedrite inhibitor.
During flotation, slurry pH is 7.5 ~ 8; In floatation process, the bulk concentrate of chalcopyrite and tetrahedrite is added water after stirring, add described inhibitor, collecting agent.
The total consumption of described inhibitor is: 350 ~ 400g/t.
Unless otherwise indicated, percentage of the present invention is mass percent, and each constituent content percentage sum is 100%.
Concrete advantage of the present invention is:
1, the inhibitor adopting the present invention to be prepared into can suppress tetrahedrite, reduces antimony content in copper concentrate.
2, dosing is few.
Four, detailed description of the invention
Below by way of specific embodiment, technical scheme of the present invention is further described.
Embodiment 1
An example of the preparation method of a kind of tetrahedrite inhibitor of the present invention, comprises the following steps:
First by oxalic acid, sodium sulfite and water oxalic acid in mass ratio: sodium sulfite: water=2:3:6 is mixed to get solution 1, then by myrica extract in mass ratio=1:3 adds in solution 1, be stirred to and dissolve to obtain solution 2; Then calcium mercaptoacetate in mass ratio=1:1 adds in solution 2, controlling solution 2 temperature is 70 DEG C, and stirring reaction keeps 1h to obtain solution 3, and solution 3 suction filtration is obtained dope, finally that dope is dry under 70 DEG C of conditions, namely obtains described tetrahedrite inhibitor.
Embodiment 2
Another example of the preparation method of a kind of tetrahedrite inhibitor of the present invention, comprises the following steps:
First by oxalic acid, sodium sulfite and water oxalic acid in mass ratio: sodium sulfite: water=3:4:8 is mixed to get solution 1, then by myrica extract in mass ratio=2:7 adds in solution 1, be stirred to and dissolve to obtain solution 2; Then by calcium mercaptoacetate in mass ratio=2:5 adds in solution 2, controlling solution 2 temperature is 75 DEG C, and stirring reaction keeps 1.5h to obtain solution 3, and solution 3 suction filtration is obtained dope, finally that dope is dry under 75 DEG C of conditions, namely obtains described tetrahedrite inhibitor.
Embodiment 3
The present embodiment is the application example of described tetrahedrite inhibitor in chalcopyrite and tetrahedrite FLOTATION SEPARATION.
1, raw mineral materials:
Raw mineral materials chalcopyrite used and tetrahedrite bulk concentrate, wherein copper content is 30.11%, antimony content is 5.53%, sulfur content is 25.72%, iron content is 15.41%, show through material phase analysis, mainly exist with chalcopyrite, tetrahedrite form in bulk concentrate, separately have a small amount of chalmersite and magnesia, calcium carbonate mineral.
2, regime of agent and operating condition: adjust pH values of pulp to 7.5 ~ 8, by inhibitor 350g/t with sodium carbonate, diethyldithiocarbamate 50g/t dosing is tested, result shows to adopt above agentia condition can effectively by chalcopyrite and tetrahedrite FLOTATION SEPARATION, under being 5.53% condition to ore deposit antimony content, scan and triple cleaning through one roughing secondary, in flotation concentrate, the content of antimony is reduced to 0.65%.
Embodiment 4
The present embodiment is the Another Application example of described tetrahedrite inhibitor in chalcopyrite and tetrahedrite FLOTATION SEPARATION.
1, raw mineral materials:
Raw mineral materials chalcopyrite used and tetrahedrite bulk concentrate, wherein copper content is 32.80%, antimony content is 6.04%, sulfur content is 23.47%, iron content is 12.54%, show through material phase analysis, mainly exist with chalcopyrite, tetrahedrite form in bulk concentrate, separately have a small amount of chalmersite and magnesia, calcium carbonate mineral.
2, regime of agent and operating condition: adjust pH values of pulp to 7.5 ~ 8, by inhibitors 4 00g/t with sodium carbonate, diethyldithiocarbamate 50g/t dosing is tested, result shows to adopt above agentia condition can effectively by chalcopyrite and tetrahedrite FLOTATION SEPARATION, under being 6.04% condition to ore deposit antimony content, scan and triple cleaning through one roughing secondary, the content of flotation concentrate antimony is reduced to 0.72%.
Claims (3)
1. the preparation method of a tetrahedrite inhibitor, it is characterized in that, comprise the steps: first to be oxalic acid in mass ratio by oxalic acid, sodium sulfite and water: sodium sulfite: water=2 ~ 3:3 ~ 4:6 ~ 8 are mixed to get solution 1, then myrica extract in mass ratio=1 ~ 2:3 ~ 7 are added in solution 1, be stirred to and dissolve to obtain solution 2; Then calcium mercaptoacetate in mass ratio=1 ~ 2:1 ~ 5 are added in solution 2, controlling solution 2 temperature is 70 ~ 75 DEG C, and stirring reaction keeps 1 ~ 1.5h to obtain solution 3, and solution 3 suction filtration is obtained dope, finally that dope is dry under 70 ~ 75 DEG C of conditions, be described tetrahedrite inhibitor.
2. the application of tetrahedrite inhibitor according to claim 1 in chalcopyrite and tetrahedrite FLOTATION SEPARATION, is characterized in that, during flotation, slurry pH is 7.5 ~ 8; In floatation process, the bulk concentrate of chalcopyrite and tetrahedrite is added water after stirring, adds described inhibitor, collecting agent,
The total consumption of described inhibitor is: 200 ~ 300g/t.
3. the application of tetrahedrite inhibitor according to claim 2 in chalcopyrite and tetrahedrite FLOTATION SEPARATION, is characterized in that, during use, described inhibitor is first mixed with the aqueous solution that mass percentage concentration is 1%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510227211.3A CN104785378A (en) | 2015-05-06 | 2015-05-06 | Preparing method for tetrahedrite inhibitor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510227211.3A CN104785378A (en) | 2015-05-06 | 2015-05-06 | Preparing method for tetrahedrite inhibitor |
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| CN104785378A true CN104785378A (en) | 2015-07-22 |
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| CN201510227211.3A Pending CN104785378A (en) | 2015-05-06 | 2015-05-06 | Preparing method for tetrahedrite inhibitor |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4643823A (en) * | 1982-09-10 | 1987-02-17 | Phillips Petroleum Company | Recovering metal sulfides by flotation using mercaptoalcohols |
| CN1032630A (en) * | 1987-10-20 | 1989-05-03 | 广西冶金研究所 | The separating technology of antimony sulfide ore-mispickel and the medicament of use thereof |
| CN101069875A (en) * | 2007-06-12 | 2007-11-14 | 长春黄金研究院 | Composite inhibitor for inhibiting arsenic ore floatation |
-
2015
- 2015-05-06 CN CN201510227211.3A patent/CN104785378A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4643823A (en) * | 1982-09-10 | 1987-02-17 | Phillips Petroleum Company | Recovering metal sulfides by flotation using mercaptoalcohols |
| CN1032630A (en) * | 1987-10-20 | 1989-05-03 | 广西冶金研究所 | The separating technology of antimony sulfide ore-mispickel and the medicament of use thereof |
| CN101069875A (en) * | 2007-06-12 | 2007-11-14 | 长春黄金研究院 | Composite inhibitor for inhibiting arsenic ore floatation |
Non-Patent Citations (1)
| Title |
|---|
| 李宗站 等: "国内铜硫浮选分离研究现状", 《金属矿山》 * |
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Application publication date: 20150722 |