CN103966460A - Roasting leaching treatment process for recovery of metal rubidium resources from copper sulfur tailings - Google Patents
Roasting leaching treatment process for recovery of metal rubidium resources from copper sulfur tailings Download PDFInfo
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- CN103966460A CN103966460A CN201310040866.0A CN201310040866A CN103966460A CN 103966460 A CN103966460 A CN 103966460A CN 201310040866 A CN201310040866 A CN 201310040866A CN 103966460 A CN103966460 A CN 103966460A
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Abstract
The invention discloses a roasting leaching treatment process for recovery of metal rubidium resources from copper sulfur tailings, and the process can be used for metal rubidium recovery from copper tailings. The process includes: subjecting tailings to dehydration to a water content of 15%, adding a 40% calcium chloride solution, with the adding amount of calcium chloride and the dry tailings being in a mass ratio of 1:9, conducting stirring mixing and granulation so as to form pellets with a particle size of not less than 4mm, carrying out roasting at 950DEG C for 0.5h, adding pure water according to a liquid-to-solid mass ratio of 0.8 to leach roasting slag for 30min at room temperature, and conducting filtering to obtain a leachate of rubidium. The leaching recovery rate of rubidium can reach 100%. The leachate is totally cycled 3 times so as to improve the rubidium content of the leachate.
Description
Technical field
The present invention relates to the Roasting And Leaching treatment process that in a kind of copper sulphur mine tailing, metal rubidium resource reclaims, belong to solid waste resource utilization field, mine.
Background technology
Rubidium is found in 1861 the earliest, is the alkali metal of periodic table of elements first family, because of atomic radius and ionic radius large, easily lose valence electron, chemical property is active.Rubidium is very important rare precious metal resource, has great meaning in economy, strategy.Rubidium metal and compound thereof use the most extensive at biological chemistry, molecular biosciences, catalyzer, electron device, phototube, special glass etc., consumption is also maximum.The overall thermal efficiency in power station can be brought up to 55%～65% taking rubidium salt as medium, this is 2 times of traditional firepower steam turbine generation overall thermal efficiency; The voyage of carrying rubidium ion thruster aircraft is approximately to carry 150 times of equal quality conventional propellants, and travelling speed can reach 116 × 10
5km/h.
Rubidium, without Independent Industrial mineral, is easy to, with the potassium generation ion-exchange in isomorphous mode and these mineral, form stable crystalline structure, is often dispersed in the silicate mineralss such as lithionite, zinnwaldite, feldspar, pollux.Copper-sulphide ores country rock contains the aluminum silicate mineral that comprise mica and feldspar, and these mineral are by artificial being sorted in mine tailing, and in mine tailing, part contains the high metal rubidium of value, has higher recovery value.Leach the rubidium reclaiming in mine tailing and need destroy mineral silicate mineral structure, make the aluminosilicate of rubidium be converted into solubility rubidium salt.
Lithionite has similar mineral structure to mineral such as containing rubidium feldspar, mica, and the method that lithionite extracts lithium is mainly high-pressure oxidation lixiviation process, acidizing fired method.In lithionite, often contain rubidium, the leaching yield of the rubidium that Jiangxi Mou Liye company obtains through optimization high-pressure oxidation leaching condition is only 60% left and right, and the rate of recovery is low.Acidizing fired method is after material is mixed with sulfuric acid, roasting at a certain temperature, and the acid generally adding is 1: 1 with quality of material ratio, large by acid amount, leaching effect is undesirable, complicated operation, labor condition is poor.
Summary of the invention
The present invention overcomes the deficiencies such as prior art is high to the leaching cost of rubidium, metal recovery rate is low, reclaim the high added value rubidium resource in copper sulphur mine tailing, provide a kind of technique simple, efficiency is high, the mine tailing rubidium extraction method that cost is low, produces certain social benefit and environmental benefit.
The Roasting And Leaching treatment process that in a kind of copper sulphur of the present invention mine tailing, metal rubidium resource reclaims, is characterized in that having following treatment process and step:
(1) tailings dewatering to water ratio is 15%, adds 40% calcium chloride solution, and the dry weight mass ratio of calcium chloride add-on and mine tailing is 1: 9, and mixing rear material water ratio is 20%, stirs and standing 2h.
(2) mine tailing mixing, through 100 DEG C of oven dry 30min, makes it form the pelletizing that particle diameter is not less than 4mm.
(3) with tube furnace roasting material, maturing temperature is 950 DEG C, and the roasting residence time is 0.5h.
(4) fired slags is less than 2mm through being crushed to granularity, leaches fired slags with pure water, and the solid mass ratio 0.8 of leach liquor leaches under normal temperature after 30min and filters and obtain containing rubidium leach liquor.
(5) leach liquor is used further to fired slags leaching, circulates altogether 3 times, to improve rubidium content in leach liquor.
The present invention utilizes roasting-lixiviation process to reclaim the rubidium in copper sulphur mine tailing, has realized the recovery of mine tailing rare precious metal, and the rubidium in mine tailing leaches the rate of recovery by the single of present method can reach 100%.The present invention compared with prior art, has technique simple, and efficiency is high, and smelting cost is low, mineral resources comprehensive utilization, the feature of increase Business Economic Benefit.
Brief description of the drawings
Fig. 1 is typical process flow figure of the present invention.
Embodiment
For understanding better the present invention, further illustrate content of the present invention below in conjunction with embodiment, but content of the present invention is not only confined to the following examples.
Embodiment 1
Certain copper sulphur tailings dewatering to water ratio is 15%, adds 40% calcium chloride solution, and the dry weight mass ratio of calcium chloride add-on and mine tailing is 1: 9, stir and standing 2h after in 100 DEG C of baking ovens, dry 30min.Be about after 4mm with broken pelletizing to the particle diameter of glass stick, be placed in temperature and be the revolution kiln roasting 0.5h of 950 DEG C, roasting evaporation rate is 2.51%.Leach fired slags with pure water, the solid mass ratio 0.8 of leach liquor, leaches 30min at normal temperatures, filters and obtains containing rubidium leach liquor, obtains reaching 680mg/L containing Rb, and leaching the rate of recovery is 100%.After leach liquor clarification, be used further to fired slags and leach, circulating leaching 3 times altogether, leach liquor rubidium content reaches 1938mg/L, and always leaching the rate of recovery is 95%.
Embodiment 2
Certain copper sulphur tailings dewatering to water ratio is 15%, adds 40% calcium chloride solution, and the dry weight mass ratio of calcium chloride add-on and mine tailing is 1: 9, stir and standing 2h after in 100 DEG C of baking ovens, dry 30min.Be about after 4mm with broken pelletizing to the particle diameter of glass stick, be placed in temperature and be the revolution kiln roasting 0.5h of 950 DEG C, roasting evaporation rate is 1.92%, leach fired slags with pure water, the solid mass ratio 0.8 of leach liquor, leaches 30min at normal temperatures, filters and obtains containing rubidium leach liquor, obtain reaching 650mg/L containing Rb, leaching the rate of recovery is 100%.After leach liquor clarification, be used further to fired slags and leach, circulating leaching 3 times altogether, leach liquor rubidium content reaches 1850mg/L, and always leaching the rate of recovery is 95%.
Claims (7)
1. the Roasting And Leaching treatment process that in copper sulphur mine tailing, metal rubidium resource reclaims, is characterised in that and has following treatment process and step:
(1) tailings dewatering to water ratio is 15%, adds 40% calcium chloride solution, stirs and standing 2h.
(2) mine tailing mixing is dried 30min through 100 DEG C.
(3) with tube furnace roasting material, maturing temperature is 950 DEG C, and the roasting residence time is 0.5h.
(4) fired slags is less than 2mm through being crushed to granularity, leaches fired slags with pure water, and the solid mass ratio 0.8 of leach liquor, leaches 30min under normal temperature, filters and obtains containing rubidium leach liquor.
(5) leach liquor is used further to fired slags leaching, circulates altogether 3 times, to improve rubidium content in leach liquor.
2. the Roasting And Leaching treatment process that in a kind of copper sulphur mine tailing according to claim 1, metal rubidium resource reclaims, is characterized in that: tailings dewatering to water ratio is 15%.
3. the Roasting And Leaching treatment process that in a kind of copper sulphur mine tailing according to claim 1, metal rubidium resource reclaims, is characterized in that: the dry weight mass ratio of calcium chloride add-on and mine tailing is 1: 9.
4. the Roasting And Leaching treatment process that in a kind of copper sulphur mine tailing according to claim 1, metal rubidium resource reclaims, is characterized in that: the mine tailing mixing is dried 30min, and stirs the pelletizing that makes its formation particle diameter be not less than 4mm.
5. the Roasting And Leaching treatment process that in a kind of copper sulphur mine tailing according to claim 1, metal rubidium resource reclaims, is characterized in that: with rotary kiln roasting material, rotary kiln velocity of rotation is 3r/min, and maturing temperature is 950 DEG C, roasting 30min.
6. the Roasting And Leaching treatment process that in a kind of copper sulphur mine tailing according to claim 1, metal rubidium resource reclaims, is characterized in that: fired slags leaches particle diameter and is less than 2mm, the solid mass ratio 0.8 of leach liquor, and extraction temperature is normal temperature, extraction time is 30min.
7. the Roasting And Leaching treatment process that in a kind of copper sulphur mine tailing according to claim 1, metal rubidium resource reclaims, is characterized in that: leach liquor is used further to fired slags and leaches, and circulates altogether 3 times.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104805311A (en) * | 2015-03-24 | 2015-07-29 | 中国地质科学院矿产综合利用研究所 | Method for extracting rubidium from rubidium-containing feldspar and co-producing silicon fertilizer |
| CN108624765A (en) * | 2018-06-14 | 2018-10-09 | 中南大学 | A kind of technique from the low-grade high efficiente callback of tailing containing rubidium rubidium |
| CN109439892A (en) * | 2019-01-14 | 2019-03-08 | 东北大学秦皇岛分校 | The extracting method of valuable metal in a kind of cupro-nickel vulcanization type mineral |
| CN112301226A (en) * | 2020-10-01 | 2021-02-02 | 承德石油高等专科学校 | Soil rubidium salt circulating leaching and content calculating method |
| CN113337734A (en) * | 2021-04-25 | 2021-09-03 | 武汉科技大学 | Method for ultrasonic reinforced extraction of rubidium from rubidium-containing ore |
| CN113955777A (en) * | 2020-07-21 | 2022-01-21 | 承德石油高等专科学校 | Method for extracting rubidium salt from soil by wet method |
| CN113957267A (en) * | 2020-07-21 | 2022-01-21 | 承德石油高等专科学校 | Method for extracting rubidium salt from soil |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104805311A (en) * | 2015-03-24 | 2015-07-29 | 中国地质科学院矿产综合利用研究所 | Method for extracting rubidium from rubidium-containing feldspar and co-producing silicon fertilizer |
| CN104805311B (en) * | 2015-03-24 | 2017-01-04 | 中国地质科学院矿产综合利用研究所 | Method for extracting rubidium from rubidium-containing feldspar and co-producing silicon fertilizer |
| CN108624765A (en) * | 2018-06-14 | 2018-10-09 | 中南大学 | A kind of technique from the low-grade high efficiente callback of tailing containing rubidium rubidium |
| CN108624765B (en) * | 2018-06-14 | 2019-08-27 | 中南大学 | A kind of technique from the low-grade high efficiente callback of tailing containing rubidium rubidium |
| CN109439892A (en) * | 2019-01-14 | 2019-03-08 | 东北大学秦皇岛分校 | The extracting method of valuable metal in a kind of cupro-nickel vulcanization type mineral |
| CN109439892B (en) * | 2019-01-14 | 2020-04-14 | 东北大学秦皇岛分校 | Method for extracting valuable metals from copper-nickel sulfide minerals |
| CN113955777A (en) * | 2020-07-21 | 2022-01-21 | 承德石油高等专科学校 | Method for extracting rubidium salt from soil by wet method |
| CN113957267A (en) * | 2020-07-21 | 2022-01-21 | 承德石油高等专科学校 | Method for extracting rubidium salt from soil |
| CN112301226A (en) * | 2020-10-01 | 2021-02-02 | 承德石油高等专科学校 | Soil rubidium salt circulating leaching and content calculating method |
| CN112301226B (en) * | 2020-10-01 | 2022-04-29 | 承德石油高等专科学校 | Soil rubidium salt circulating leaching and content calculating method |
| CN113337734A (en) * | 2021-04-25 | 2021-09-03 | 武汉科技大学 | Method for ultrasonic reinforced extraction of rubidium from rubidium-containing ore |
| CN113337734B (en) * | 2021-04-25 | 2022-09-09 | 武汉科技大学 | Method for ultrasonic reinforced extraction of rubidium from rubidium-containing ore |
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