CN105013622A - Depressor for bauxite direct flotation desilicication and application thereof - Google Patents
Depressor for bauxite direct flotation desilicication and application thereof Download PDFInfo
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- CN105013622A CN105013622A CN201510503185.2A CN201510503185A CN105013622A CN 105013622 A CN105013622 A CN 105013622A CN 201510503185 A CN201510503185 A CN 201510503185A CN 105013622 A CN105013622 A CN 105013622A
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- bauxite
- flotation
- modified starch
- sodium carbonate
- diaspore
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Abstract
The invention provides a depressor for bauxite direct flotation desilicication and application thereof and belongs to the field of non-ferrous metal. The depressor is formed by mixing sodium carbonate, sodium hexametaphosphate and modified starch according to a certain proportion and added to pulp during direct flotation desilicication, and then direct flotation desilicication is conducted. According to the depressor for bauxite direct flotation desilicication and the application thereof, by the adoption of sodium carbonate, the coherence and the wall-adhering behavior of the surface of a diaspore mineral are lowered, and the mobility of the diaspore mineral is improved; gangue minerals and the diaspore mineral in the pulp are separated through sodium hexametaphosphate, and then the pulp is adjusted through modified starch; in this way, the purpose of depressing the gangue minerals is achieved, the diaspore can be easily collected through collectors, and the beneficiation index of bauxite is improved.
Description
Technical field
The present invention relates to non-ferrous metal ore pharmaceutical arts, specifically a kind of bauxite direct-flotation desiliconisation inhibitor and application thereof.
Background technology
In floatation process, effectively suppress gangue mineral, improving the valuable mineral rate of recovery is the key point realizing flotation collecting.Though China is bauxite big country, but continually develop utilization along with mineral resources, China's bauxite resource gradually dilution is serious, high-quality bauxitic ore is developed totally already, low-grade mineral resource is paid attention to gradually, for expanding bauxite resource source, the utilization rate improving bauxite resource becomes one of important channel solving resource scarcity.Bauxite flotation technology always direct-flotation desiliconisation technique be traditional handicraft, the large factor simultaneously restricting bauxite utilization rate is exactly the suppression problem of gangue mineral in bauxite raw ore.The efficient bauxite direct-flotation desiliconisation inhibitor of research and probe, promotes bauxite resource flotation and utilizes level, have important function to General Promotion bauxite industry technology level.
Summary of the invention
For when solving bauxite direct-flotation desiliconisation in prior art, valuable mineral is separated more difficult problem with gangue mineral, the invention provides a kind of bauxite direct-flotation desiliconisation inhibitor and application thereof, the sila matter in bauxite can be removed efficiently.
The present invention is the technical scheme solving the problems of the technologies described above employing: a kind of bauxite direct-flotation desiliconisation inhibitor, is formed according to the ratio cooperation that weight ratio is 2.0-4.5:0.03-0.06:0.1-0.25 by sodium carbonate, calgon and modified starch.
Described modified starch is cationic modified starch.
The weight ratio of described sodium carbonate, calgon and modified starch is 3:0.06:0.2.
Above-mentioned inhibitor is used to carry out the method for bauxite direct-flotation desiliconisation, first bauxite is worn into ore pulp, then add collecting agent and carry out flotation collecting, thus obtain bauxite concentrate, in the bauxite ore pulp worn into, add sodium carbonate, calgon and modified starch successively according to the ratio of the corresponding 2000-4500g sodium carbonate of bauxite per ton, 30-60g calgon and 100-250g modified starch, stir after sizing mixing and carry out flotation collecting again.
Changed in 2000-4500g by the amount controlling to add sodium carbonate, thus adjustment to stir the slurry pH after sizing mixing be 8-9.
The present invention uses sodium carbonate to make diaspore mineral surface reduce coherency and sticky wall, improve its mobility, again with gangue mineral and diaspore mineral in calgon dispersion ore pulp, then regulate ore pulp with modified starch, thus reach the object of inhibitor gangue mineral.
In former bauxite direct-flotation desiliconisation technology, often only use the process such as sodium carbonate and calgon ore pulp, collecting agent flotation of mineral products diaspore is added after dispersion ore pulp, this medicament technique only plays the effect of dispersion ore pulp of sizing mixing, but a lot of siliceous gangue minerals is easy to along with valuable mineral diaspore floats together, the grade of diaspore and the rate of recovery is caused to reduce.The present invention studies and finds after interpolation calgon dispersion ore pulp, because granularmetric composition in ore pulp is very thin, a large amount of gangue minerals also can be attached to valuable mineral diaspore surface, causes collecting agent can not effectively and diaspore surface action, and flotation effect is not good.The present invention uses calgon to coordinate modified starch effect then effectively can improve the attachment of gangue mineral to diaspore surface, silicate gangue mineral is selectively condensed together, can not impact diaspore, add collecting agent can make medicament rapidly and diaspore surface act on, reach flotation object.
Inhibitor of the present invention has the following advantages when being used for bauxite direct-flotation desiliconisation:
1) because highly effective composite restrainer has highly selective inhibitor effect, can in bauxite forward flotation process high efficiency dispersion and suppress siliceous gangue mineral in ore pulp, reach the object of FLOTATION SEPARATION;
2) when flotation highly effective composite restrainer of the present invention is used for bauxite direct-flotation desiliconisation, better than index during traditional regime of agent ore dressing, therefore, this composite restrainer has effective, selective height, the advantage such as pollution-free.
Detailed description of the invention
Be further elaborated technical scheme of the present invention below in conjunction with specific embodiment, the sodium carbonate that the present invention is used and calgon are all the chemical agents that this area is commonly used, and modified starch used is commercially available modified starch, is a kind of flocculant.
Embodiment 1
The composition of the inhibitor that the present embodiment adopts is: sodium carbonate, calgon and modified starch use by the ratio combination of 2:0.03:0.1, Oxidized copper ores is carried out to somewhere, Henan low-grade bauxite, its main aluminium mineral is diaspore, main gangue mineral is kaolinite, bloodstone, anatase, chlorite etc., ore properties is complicated, alumina silica ratio is 3.34, and this ore belongs to low-grade high-silica diaspore ore stone.Because this ore deposit silicone content is higher, very large on the impact of valuable mineral diaspore, directly add the more difficult collecting of collecting agent, for ore properties, 2000g/t sodium carbonate is added in ore grinding, be milled to the fineness that-0.074mm accounts for 89%, the stirring that the modified starch of the calgon and 100g/t that then add 30g/t respectively carries out 30 minutes is sized mixing, the pH detecting ore pulp is 8, add bauxite forward flotation fatty-acid collector and carry out flotation collecting, flotation 10 minutes is left back, and can obtain better index by a thick smart sorting operation is Al
2o
355.34%, SiO
26.73%, the rate of recovery is 75.61%, the bauxite concentrate of the index of alumina silica ratio 8.22.
Embodiment 2
The composition of the inhibitor that the present embodiment adopts is: sodium carbonate, calgon and modified starch use by 4.5:0.06:0.25 ratio combination, Oxidized copper ores is carried out to somewhere, Henan low-grade bauxite, its main aluminium mineral is diaspore, main gangue mineral is kaolinite, bloodstone, anatase, chlorite etc., ore properties is complicated, alumina silica ratio is 3.34, and this ore belongs to low-grade high-silica diaspore ore stone.Because this ore deposit silicone content is higher, very large on the impact of valuable mineral diaspore, directly add the more difficult collecting of collecting agent, for ore properties, 4500g/t sodium carbonate is added in ore grinding, be milled to the fineness that-0.074mm accounts for 89%, the stirring that the modified starch of the calgon and 250g/t that then add 60g/t respectively carries out 30 minutes is sized mixing, the pH value detecting ore pulp is 9, add bauxite forward flotation fatty-acid collector and carry out flotation collecting, flotation 10 minutes is left back, and can obtain better index by a thick smart sorting operation is Al
2o
358.34%, SiO
26.23%, the rate of recovery is 77.61%, the bauxite concentrate of the index of alumina silica ratio 9.36.
Embodiment 3
The composition of the inhibitor that the present embodiment adopts is: sodium carbonate, calgon and modified starch use by 3.25:0.045:0.175 ratio combination, Oxidized copper ores is carried out to somewhere, Henan low-grade bauxite, its main aluminium mineral is diaspore, main gangue mineral is kaolinite, bloodstone, anatase, chlorite etc., ore properties is complicated, alumina silica ratio is 3.34, and this ore belongs to low-grade high-silica diaspore ore stone.Because this ore deposit silicone content is higher, very large on the impact of valuable mineral diaspore, directly add the more difficult collecting of collecting agent, for ore properties, 3250g/t sodium carbonate is added in ore grinding, be milled to the fineness that-0.074mm accounts for 89%, the stirring that the modified starch of the calgon and 175g/t that then add 45g/t respectively carries out 30 minutes is sized mixing, the pH value detecting ore pulp is 8.6, add bauxite forward flotation fatty-acid collector and carry out flotation collecting, flotation 10 minutes is left back, and can obtain better index by a thick smart sorting operation is Al
2o
356.34%, SiO
26.98%, the rate of recovery is 74.61%, the bauxite concentrate of the index of alumina silica ratio 8.07.
Comparative example
The composition of the inhibitor that the present embodiment adopts is: sodium carbonate, calgon use by 3.0:0.06 ratio combination, Oxidized copper ores is carried out to somewhere, Henan low-grade bauxite, its main aluminium mineral is diaspore, main gangue mineral is kaolinite, bloodstone, anatase, chlorite etc., ore properties is complicated, alumina silica ratio is 3.34, and this ore belongs to low-grade high-silica diaspore ore stone.Because this ore deposit silicone content is higher, very large on the impact of valuable mineral diaspore, directly add the more difficult collecting of collecting agent, for ore properties, in ore grinding, add 3000g/t sodium carbonate, be milled to the fineness that-0.074mm accounts for 89%, then the stirring that the calgon adding 60g/t respectively carries out 30 minutes is sized mixing, add bauxite forward flotation fatty-acid collector and carry out flotation collecting, flotation 10 minutes is left back, and can obtain better index by a thick smart sorting operation is Al
2o
354.34%, SiO
27.58%, the rate of recovery is 68.61%, the bauxite concentrate of the index of alumina silica ratio 7.17.
Obviously can be found out by comparative example, by adding modified starch, make itself and calgon acting in conjunction, thus having increased substantially the rate of recovery and alumina silica ratio.
Claims (5)
1. a bauxite direct-flotation desiliconisation inhibitor, is characterized in that: formed according to the ratio cooperation that weight ratio is 2.0-4.5:0.03-0.06:0.1-0.25 by sodium carbonate, calgon and modified starch.
2. a kind of bauxite direct-flotation desiliconisation inhibitor according to claim 1, is characterized in that: described modified starch is cationic modified starch.
3. a kind of bauxite direct-flotation desiliconisation inhibitor according to claim 1, is characterized in that: the weight ratio of described sodium carbonate, calgon and modified starch is 3:0.06:0.2.
4. use inhibitor as claimed in claim 1 to carry out the method for bauxite direct-flotation desiliconisation, first bauxite is worn into ore pulp, then add collecting agent and carry out flotation collecting, thus obtain bauxite concentrate, it is characterized in that: in the bauxite ore pulp worn into, add sodium carbonate, calgon and modified starch successively according to the ratio of the corresponding 2000-4500g sodium carbonate of bauxite per ton, 30-60g calgon and 100-250g modified starch, stir after sizing mixing and carry out flotation collecting again.
5. use inhibitor according to claim 4 carries out the method for bauxite direct-flotation desiliconisation, it is characterized in that: controlling to stir the slurry pH after sizing mixing is 8-9.
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| CN201510503185.2A CN105013622A (en) | 2015-08-17 | 2015-08-17 | Depressor for bauxite direct flotation desilicication and application thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105597943A (en) * | 2016-01-25 | 2016-05-25 | 江西理工大学 | Flotation depressing agent as well as preparation method and application thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1883815A (en) * | 2006-07-06 | 2006-12-27 | 中国铝业股份有限公司 | Flotation desilication method for bauxite |
| CN1947851A (en) * | 2006-11-03 | 2007-04-18 | 北京矿冶研究总院 | Selective flocculant for reverse flotation of bauxite and application method thereof |
| CN101176859A (en) * | 2007-12-17 | 2008-05-14 | 中国铝业股份有限公司 | Method for ore dressing and desilicating mixed type bauxite |
| CN101439316A (en) * | 2008-11-27 | 2009-05-27 | 中南大学 | Selective flocculation desiliconisation method against low aluminum silicon ratio bauxite |
| CN101444762A (en) * | 2008-11-27 | 2009-06-03 | 中南大学 | Method for selective flocculent desiliconization from low alumina-silicon ratio alumyte by using high effective grinding ore |
| CN102806146A (en) * | 2012-07-27 | 2012-12-05 | 中国铝业股份有限公司 | Method for performing beneficiation and desilicification on bauxite |
-
2015
- 2015-08-17 CN CN201510503185.2A patent/CN105013622A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1883815A (en) * | 2006-07-06 | 2006-12-27 | 中国铝业股份有限公司 | Flotation desilication method for bauxite |
| CN1947851A (en) * | 2006-11-03 | 2007-04-18 | 北京矿冶研究总院 | Selective flocculant for reverse flotation of bauxite and application method thereof |
| CN101176859A (en) * | 2007-12-17 | 2008-05-14 | 中国铝业股份有限公司 | Method for ore dressing and desilicating mixed type bauxite |
| CN101439316A (en) * | 2008-11-27 | 2009-05-27 | 中南大学 | Selective flocculation desiliconisation method against low aluminum silicon ratio bauxite |
| CN101444762A (en) * | 2008-11-27 | 2009-06-03 | 中南大学 | Method for selective flocculent desiliconization from low alumina-silicon ratio alumyte by using high effective grinding ore |
| CN102806146A (en) * | 2012-07-27 | 2012-12-05 | 中国铝业股份有限公司 | Method for performing beneficiation and desilicification on bauxite |
Non-Patent Citations (6)
| Title |
|---|
| 孙德四等: "铝土矿预脱硅研究进展", 《江西科学》 * |
| 张泾生等: "《矿用药剂》", 30 November 2008 * |
| 温英等: "阳泉铝矾土矿富铝除铁的研究", 《中国锰业》 * |
| 胡岳华等: "《铝硅矿物浮选化学与铝土矿脱硅》", 30 September 2004 * |
| 陈湘清等: "铝土矿浮选脱硅现状及研究进展", 《轻金属》 * |
| 马智敏等: "铝土矿选矿脱硅技术研究现状及前景展望", 《矿产综合利用》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105597943A (en) * | 2016-01-25 | 2016-05-25 | 江西理工大学 | Flotation depressing agent as well as preparation method and application thereof |
| CN105597943B (en) * | 2016-01-25 | 2017-12-29 | 江西理工大学 | A kind of depressing agent and preparation method and applications |
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