CN104226486A - Preparing method of clay mineral inhibitors in tailings - Google Patents
Preparing method of clay mineral inhibitors in tailings Download PDFInfo
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- CN104226486A CN104226486A CN201410465100.1A CN201410465100A CN104226486A CN 104226486 A CN104226486 A CN 104226486A CN 201410465100 A CN201410465100 A CN 201410465100A CN 104226486 A CN104226486 A CN 104226486A
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Abstract
The invention relates to a preparing method of clay mineral inhibitors in tailings. The method comprises the following steps that (1) tree barks are dried and smashed, the sieving is carried out, and powder is obtained for standby; (2) raw materials including the tree bark powder, sodium sulfide, sodium hydroxide and water are weighed according to the mass ratio being (1-2):(3-5):(5-6):(8-10), and then, the raw materials are heated for taking reaction; (3) filtering is carried out, filter liquor is taken and is subjected to centrifugal separation, supernatant liquid is taken and is subjected to reduced pressure distillation, obtained substances are subjected to water bath heating, and viscous liquid is obtained after solvents are dried by distillation; (4) the viscous liquid is dried, brown viscous solid is obtained, and after the brown viscous solid is completely dried, the obtained yellow powder is the clay mineral inhibitors. When the clay mineral inhibitors are used for processing the tailings, clay in the tailings is removed, and meanwhile, the loss of valuable metals in the tailings is reduced, so the concentrate grade and the recovery rate of the valuable metals are improved. Further, the medicament dosage is little, and nontoxicity and non-pollution are realized.
Description
Technical field
The present invention relates to a kind of preparation method of inhibitor of mineral, particularly the preparation method of shale mineral in a kind of mine tailing.
Background technology
In the ore dressing process of some polymetallic ores, due to ore properties more complicated, in order to synthetical recovery metal mineral, in grinding process, the overground argillization of a part of ore is often made to enter mine tailing; Day by day exhausted along with resource, the recycling of some resource of tailings is brought into schedule, but contains shale due to mine tailing part, is called for short shale mineral.By the impact of shale mineral, want to reclaim valuable metal in mine tailing, the impact of shale Mineral pairs valuable metal mineral in mine tailing must be eliminated as far as possible, conventional beneficiation method is the method adopting desliming, but this Desliming method to cause part valuable metal and mud together to remove, cannot reclaim, thus the rate of recovery greatly reduces.
If utilize inhibitor to suppress this part shale mineral, reclaim valuable metal mineral in mine tailing, theory and realistic meaning will be had.
Summary of the invention
The present invention is directed to above-mentioned technical problem, invent the preparation method of shale mineral inhibitor in a kind of mine tailing, being intended to utilize this inhibitor to removing in mine tailing while shale in tailings glass, reducing the loss of valuable metal in mine tailing, thus promote the rate of recovery of valuable metal.
For solving the problems of the technologies described above, technical solution of the present invention is as follows:
A preparation method for shale mineral inhibitor in mine tailing, its concrete operation step is:
(1) bark is dried and is pulverized, and sieves, obtains bark fines, for subsequent use;
(2) raw material bark fines is taken in mass ratio, vulcanized sodium, NaOH and water, ratio wherein between bark fines, vulcanized sodium, NaOH, water is 1 ~ 2:3 ~ 5:5 ~ 6:8 ~ 10, then above-mentioned raw materials is heated to 70 ~ 85 DEG C, stirs and make it reaction, keep 3 ~ 5h;
(3) material after reaction in step (2) is filtered, get filtrate, filtrate is carried out centrifugation, get supernatant liquor and carry out decompression distillation 5 ~ 7h with cucurbit, after distillation, in bottle, surplus materials heats, temperature keeps 70 ~ 80 DEG C, treats that solvent evaporate to dryness obtains thick liquid;
(4) gained thick liquid keeps temperature to be 65 ~ 72 DEG C carrying out drying 4 ~ 6h in step (3), and obtain brown viscous solid, the yellow powder obtained after bone dry is shale mineral inhibitor.
Wherein, described bark is three kinds or four kinds in horse chestnut, five jiaos of maples, silk tree, locust tree, bark of Chinese pine and Luan Shu barks.
Wherein, describedly the filtration carrying out 2 ~ 3 times with gauze is filtered into.
Wherein, 48 ~ 60 mesh sieves are crossed after being pulverized by bark in step (1).
Wherein, in step (3), filtrate carries out 2 ~ 3 centrifugations.
Wherein, in step (3), after decompression distillation, gained material carries out heating water bath.
Wherein, in step (4), gained viscous fluid carries out drying in vacuum drying chamber.
During use, mine tailing per ton prepares gained inhibitor 200 ~ 300g with above-mentioned.
Beneficial effect of the present invention:
The present invention utilizes this inhibitor to removing in mine tailing while shale in tailings glass, reduces the loss of valuable metal in mine tailing, thus promotes the rate of recovery and the concentrate grade of valuable metal.Further dosing of the present invention is few, nontoxic pollution-free.
Detailed description of the invention
Further describe the present invention referring to detailed description of the invention, to make those skilled in the art can implement according to this with reference to description word, scope is not limited by embodiments of the present invention.
Embodiment 1
With horse chestnut, five jiaos of maples, silk tree for bark raw material, clean rear 30 DEG C of low temperature dryings, pulverize, cross 48 mesh sieves, be bark fines; 1:3:5:8 takes bark fines, vulcanized sodium, NaOH, water respectively in mass ratio, then by each raw material mix and blend and be heated to 70 DEG C reaction 5h, between the stage of reaction keep stir; Reaction terminates rear gauze will react rear gains filter 23, get filtrate, filtrate is carried out 2 centrifugations with centrifugal precipitation mechanism, and supernatant liquor is collected in round-bottomed flask and carries out decompression distillation 5h, obtains buff concentrate, heat in a water bath, temperature controls, at about 70 DEG C, solvent evaporate to dryness to be obtained thick liquid, is dry 4h in the vacuum drying chamber of 65 DEG C by thick liquid in temperature, obtain brown viscous solid, the yellow powder obtained after bone dry is shale mineral inhibitor.
Embodiment 2
With silk tree, locust tree, Chinese scholar tree and Luan Shu for bark raw material, clean rear 30 DEG C of low temperature dryings, pulverize, cross 50 mesh sieves, be bark fines; 2:5:6:10 takes bark fines, vulcanized sodium, NaOH, water respectively in mass ratio, then by each raw material mix and blend and be heated to 85 DEG C reaction 3h, between the stage of reaction keep stir; Reaction terminates rear gauze will react rear gains filtration, 4 times, get filtrate, filtrate is carried out 3 centrifugations with centrifugal precipitation mechanism, supernatant liquor is collected in round-bottomed flask and carries out decompression distillation 6h, obtain buff concentrate, heat in a water bath, temperature controls at about 80 DEG C, solvent evaporate to dryness is obtained thick liquid, be dry 5h in the vacuum drying chamber of 72 DEG C in temperature by thick liquid, obtain brown viscous solid, the yellow powder obtained after bone dry is shale mineral inhibitor.
Embodiment 3
With five jiaos of maples, locust tree, state Chinese scholartree for bark raw material, clean rear 30 DEG C of low temperature dryings, pulverize, cross 60 mesh sieves, be bark fines; 2:4:5:6 takes bark fines, vulcanized sodium, NaOH, water respectively in mass ratio, then by each raw material mix and blend and be heated to 80 DEG C reaction 4h, between the stage of reaction keep stir; Reaction terminates rear gauze will react rear gains filter 23, get filtrate, filtrate is carried out 2 centrifugations with centrifugal precipitation mechanism, and supernatant liquor is collected in round-bottomed flask and carries out decompression distillation 7h, obtains buff concentrate, heat in a water bath, temperature controls, at about 75 DEG C, solvent evaporate to dryness to be obtained thick liquid, is dry 6h in the vacuum drying chamber of 70 DEG C by thick liquid in temperature, obtain brown viscous solid, the yellow powder obtained after bone dry is shale mineral inhibitor.
Embodiment 4
The present embodiment is raw materials used is lead-zinc sulfide ore mine tailing, in mine tailing leaded 1.02%, and zinc 1.66%, material phase analysis shows, plumbous main with galena, zinc exists with zinc blend form; Grain size analysis shows, in mine tailing, negative 400 order content account for 37.54%, illustrate that mine tailing Minerals argillization is comparatively serious.
With the process of embodiment gained inhibitor: regulate pH values of pulp to be 8, by sodium carbonate 500g/t with sodium carbonate, inhibitor 200g/t, copper sulphate 100g/t, butyl xanthate 200g/t, No. 2 oily 70g/t dosings add and carry out tailings glass, namely through one roughing scan for three times and twice selected.Testing result: result shows to adopt above technique and agentia condition effectively Pb-Zn deposits thing flotation serious for argillization to be reclaimed, giving ore deposit zinc grade lead 1.02%, under zinc 1.66% condition, through one roughing scan for three times and twice selected, plumbous grade 30.11%, zinc 27.48% can be obtained, the lead and zinc bulk concentrate of lead recovery 81.54%, zinc recovery 80.15%.
Embodiment 5
The present embodiment raw mineral materials used is plumbous antimony zinc multi-metal sulfide mine tailing, and in ore, plumbous antimony content is 0.34%, and zinc 1.13%, material phase analysis show, plumbous antimony exists with jamesonite form, and zinc is based on marmatite; Grain size analysis shows, in mine tailing, negative 400 order content account for 34.10%, illustrate that mine tailing Minerals argillization is comparatively serious.
Process the present embodiment mine tailing is carried out: adjust pH values of pulp to be 8.5, according to sodium carbonate 800g/t with lime with embodiment gained inhibitor, inhibitor 300g/t, butylamine black powder 50g/t, copper sulphate 100g/t, butyl xanthate consumption 180g/t, the dosing of No. 2 oil (terpenic oil) 70g/t carries out tailings glass, namely scans for twice and triple cleaning through one roughing.Testing result: result shows to adopt above-mentioned technique and agentia condition effectively can suppress shale mineral and effectively can reclaim plumbous antimony zinc mineral, under the condition that plumbous antimony, zinc are 0.34% and 1.13% to ore deposit grade, adopting preferentially selects plumbous antimony to select the flotation flowsheet of zinc again, plumbous antimony is scanned for twice and triple cleaning through one roughing, obtain plumbous antimony grade 32.73%, the flotation concentrate of the rate of recovery 70.45%; Zinc is scanned for twice and triple cleaning through one roughing, obtains zinc grade 40.11%, the flotation concentrate of the rate of recovery 75.34%.
The present invention utilizes this inhibitor to removing in mine tailing while shale in tailings glass, reduces the loss of valuable metal in mine tailing, thus promotes the rate of recovery and the concentrate grade of valuable metal.Further dosing of the present invention is few, nontoxic pollution-free.
Claims (7)
1. the preparation method of shale mineral inhibitor in mine tailing, is characterized in that, comprise following operating procedure:
(1) bark is dried and is pulverized, and sieves, obtains bark fines, for subsequent use;
(2) raw material bark fines is taken in mass ratio, vulcanized sodium, NaOH and water, ratio wherein between bark fines, vulcanized sodium, NaOH, water is 1 ~ 2:3 ~ 5:5 ~ 6:8 ~ 10, then above-mentioned raw materials is heated to 70 ~ 85 DEG C, stirs and make it reaction, keep 3 ~ 5h;
(3) filtered by the material after reaction in step (2), get filtrate, filtrate is carried out centrifugation and get supernatant liquor and carry out decompression distillation 5 ~ 7h, gained material heats, and temperature keeps 70 ~ 80 DEG C, treats that solvent evaporate to dryness obtains thick liquid;
(4) gained thick liquid keeps temperature to be 65 ~ 72 DEG C carrying out drying 4 ~ 6h in step (3), and obtain brown viscous solid, the yellow powder obtained after bone dry is shale mineral inhibitor.
2. the preparation method of shale mineral inhibitor in mine tailing according to claim 1, is characterized in that: described bark is three kinds or four kinds in horse chestnut, five jiaos of maples, silk tree, locust tree, bark of Chinese pine and Luan Shu barks.
3. the preparation method of shale mineral inhibitor in mine tailing according to claim 1, is characterized in that: described be filtered into the filtration carrying out 2 ~ 3 times with gauze.
4. the preparation method of shale mineral inhibitor in mine tailing according to claim 1, is characterized in that: cross 48 ~ 60 mesh sieves after being pulverized by bark in step (1).
5. the preparation method of shale mineral inhibitor in mine tailing according to claim 1, is characterized in that: in step (3), filtrate carries out 2 ~ 3 centrifugations.
6. the preparation method of shale mineral inhibitor in mine tailing according to claim 1, is characterized in that: in step (3), after decompression distillation, gained material carries out heating water bath.
7. the preparation method of shale mineral inhibitor in mine tailing according to claim 1, is characterized in that: in step (4), gained viscous fluid carries out drying in vacuum drying chamber.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106733211A (en) * | 2017-01-22 | 2017-05-31 | 彝良驰宏矿业有限公司 | A kind of floating agent for improving Sphalerite flotation index |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11319634A (en) * | 1998-05-14 | 1999-11-24 | Sumitomo Metal Mining Co Ltd | Recovering method of valuable metal from cobalt enriched crust |
| CN101612610A (en) * | 2009-06-22 | 2009-12-30 | 广西华锡集团股份有限公司 | A kind of preparation method who contains mud and carbonaceous gangue mineral inhibitor |
| CN103041927A (en) * | 2013-01-09 | 2013-04-17 | 广西大学 | Preparation method of gold-bearing sulfide mineral inhibitor |
| CN103706484A (en) * | 2013-12-11 | 2014-04-09 | 广西大学 | Preparation method of micro-fine particle cassiterite mineral inhibitor and application of preparation method |
| CN103990551A (en) * | 2014-05-29 | 2014-08-20 | 西安建筑科技大学 | Preparation method of zinc sulfide mineral flotation separation inhibitor and application thereof |
-
2014
- 2014-09-12 CN CN201410465100.1A patent/CN104226486A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11319634A (en) * | 1998-05-14 | 1999-11-24 | Sumitomo Metal Mining Co Ltd | Recovering method of valuable metal from cobalt enriched crust |
| CN101612610A (en) * | 2009-06-22 | 2009-12-30 | 广西华锡集团股份有限公司 | A kind of preparation method who contains mud and carbonaceous gangue mineral inhibitor |
| CN103041927A (en) * | 2013-01-09 | 2013-04-17 | 广西大学 | Preparation method of gold-bearing sulfide mineral inhibitor |
| CN103706484A (en) * | 2013-12-11 | 2014-04-09 | 广西大学 | Preparation method of micro-fine particle cassiterite mineral inhibitor and application of preparation method |
| CN103990551A (en) * | 2014-05-29 | 2014-08-20 | 西安建筑科技大学 | Preparation method of zinc sulfide mineral flotation separation inhibitor and application thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106733211A (en) * | 2017-01-22 | 2017-05-31 | 彝良驰宏矿业有限公司 | A kind of floating agent for improving Sphalerite flotation index |
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Application publication date: 20141224 |