CN102861674A - Floatation processing method of pyrolusite - Google Patents
Floatation processing method of pyrolusite Download PDFInfo
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- CN102861674A CN102861674A CN2012103802452A CN201210380245A CN102861674A CN 102861674 A CN102861674 A CN 102861674A CN 2012103802452 A CN2012103802452 A CN 2012103802452A CN 201210380245 A CN201210380245 A CN 201210380245A CN 102861674 A CN102861674 A CN 102861674A
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- pyrolusite
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Abstract
The invention discloses a floatation processing method of pyrolusite, belongs to the field of black metal ore processing and relates to a method for pre-treating pyrolusite by silicate bacteria to increase grades. The floatation processing method is characterized by subjecting the pyrolusite to fine grinding until the pyrolusite in -200 meshes accounts for 50-98%, pre-treating the ground ore samples by the silicate bacteria, proportionally adding an inhibiting agent and a positive ion collector for floatation processing, and filtering and drying products in a floatation processing trough to obtain manganese concentrate powders containing over 20% of manganese. According to the floatation processing method of the pyrolusite, the pyrolusite containing 5%-35% of manganese are subjected to silicate bacteria pre-treatment and floatation processing to obtain concentrates with 20%-38% of manganese, the recovery ratio of the manganese is over 70%, an effective and economical method is provided for comprehensively recycling the pyrolusite, and supply and demand contradictions of manganese ore markets are relieved.
Description
Technical field
The present invention relates to a kind of floating and enriching method of pyrolusite stone, belong to technical field of mineral processing.
Background technology
Along with the in recent years fast development of development, the especially steel and iron industry of China's metallurgy, chemistry, electronics industry, the manganese ore demand is also increasing, and China has become manganese ore import big country.For alleviating the manganese ore imbalance between supply and demand, must carry out enrichment to low-grade manganese, solve the problem that the manganese resource scale utilizes.
The main method of magnetic separation that adopts is carried out ore dressing to manganese ore both at home and abroad at present, and enrichment degree is not high, and general grade can improve about 5%, and magnetic separation is poorer for the ore dressing effect of particulate manganese ore, and the rate of recovery of manganese is on the low side, has caused to a great extent the loss of manganese mineral.Floatation is the effective way that solves the ore dressing of minuteness particle manganese ore thing.This method is different based on manganese dioxide and gangue mineral surface nature, utilizes simultaneously microorganism that ore is carried out preliminary treatment, has strengthened the hydrophobicity of gangue mineral, reaches the purpose of separating with manganese dioxide.
Summary of the invention
When the objective of the invention is to solve prior art and processing pyrolusite, the problem such as Floatation Concentrate Grade and the rate of recovery are low.
The floating and enriching method of pyrolusite stone, step is as follows:
(1) pyrolusite stone is finely ground to-200 orders and accounts for 50-98%;
(2) sample ore that step (1) is obtained places the fluid nutrient medium of inoculation silicate bacteria to carry out preliminary treatment; Silicate bacteria is purchased from Chinese agriculture microorganism fungus kind preservation administrative center, ACCC numbering bacterial classification Chinese formal name used at school: colloid bacillus cereus, deposit number: 01429;
(3) get the pretreated pyrolusite washing and filtering of step (2), adding water adjusting pulp density is 10-50%;
(4) add a certain amount of inhibitor in the ore pulp in the step (3);
(5) add a certain amount of cation-collecting agent in the ore pulp in the step (4), carry out flotation, obtaining the interior product of groove is final manganic concerntrate.
2, step
The shaking flask incubation time is 1～8d, temperature 15-30 ℃.
3, inhibitor is the mixture of waterglass, calgon, tannin, carboxymethyl cellulose or calgon, carboxymethyl cellulose and tannin in the step (4), and the inhibitor consumption is 100g/t-1000g/t.
4, the cation-collecting agent consumption that adds in the step (5) is 100g/t-600g/t.
When 5, the pyrolusite grade is lower than 10%, can adopt multistage selected with scan, until the manganic concerntrate grade reaches more than 20%.
The floating and enriching method technological process of pyrolusite stone such as accompanying drawing 1.Compare with the treatment process of existing pyrolusite, technique of the present invention is simple, and flow process is short, and concentrate grade and the rate of recovery are all more satisfactory.
Description of drawings
The floating and enriching method process chart of Fig. 1 pyrolusite stone.
The specific embodiment
Embodiment 1: pyrolusite its main chemical compositions in Guizhou is: Mn 15.90%, and CaO 0.25%, and MgO 0.085%, SiO
232.98%, S 0.091%, Al
2O
35.82%.Mineral composition: metalliferous mineral is mainly pyrolusite, and quartz is main gangue mineral.
Take by weighing the sample ore of a certain amount of being crushed to-2mm, levigate extremely-200 orders account for 85%, then levigate sample ore is added in the silicate bacteria culture medium, 30 ℃ of lower shaking flask 2d of inoculation silicate bacteria, pyrolusite behind the filtration washing carries out flotation in the XFD hanging trough flotator, pulp density 10%, inhibitor calgon consumption is 500g/t, collecting agent lauryl amine consumption 200g/t.
This routine result of implementation is: flotation concentrate manganese content is 22.11%, and manganese recovery ratio is 76.55%.The flotation froth product is the low manganese impurity of manganese content 4.6%.
Embodiment 2: take from the pyrolusite of Guangxi Manganese Ore District, chemical composition is:
| Mn | Fe | Si | Al | Ca | Mg | S | P |
| 35.12 | 4.35 | 22.30 | 6.01 | 0.086 | 0.072 | 0.005 | 0.078 |
Mineralogical analysis shows: the major metal mineral are pyrolusite and bloodstone, and gangue mineral is quartz and kaolinite.
Take by weighing and be crushed to-sample ore of 1mm, levigate-200 orders account for 65%, then levigate sample ore is added in the silicate bacteria culture medium, 20 ℃ of shaking flask 4d of inoculation silicate bacteria, pyrolusite behind the filtration washing carries out flotation in the XFD hanging trough flotator, pulp density 30%, inhibitor waterglass consumption is 750g/t, collecting agent ether amine consumption 500g/t.
This routine result of implementation is: flotation concentrate manganese content is 38.45%, and manganese recovery ratio is 70.42%.The flotation froth product is the low manganese impurity of manganese content 9.44%.
Embodiment 3:
Pyrolusite its main chemical compositions in Hunan is: Mn 11.07%, SiO
259.29%, Fe
2O
36.59%, Al
2O
36.51%, Ni 0.03%, and Zn 0.05%, and Cu 0.02%.Mineral composition: metalliferous mineral is mainly pyrolusite and bloodstone, and quartz is main gangue mineral, and manganese content is low.
Take by weighing a certain amount of pyrolusite sample, levigate extremely-200 orders account for 90%, then levigate sample ore is added in the silicate bacteria culture medium, 15 ℃ of shaking flask 6d of inoculation silicate bacteria, pyrolusite behind the filtration washing carries out flotation in the XFD hanging trough flotator, pulp density 20%, inhibitor is the mixture of calgon, carboxymethyl cellulose and tannin, consumption is 750g/t, collecting agent lauryl amine consumption 450g/t, the rough concentrate that obtains is again selected, and the inhibitor consumption is 300g/t, collector dosage 200g/t.
This routine result of implementation is: flotation concentrate manganese content is 21.05%, and manganese recovery ratio is 80.52%.The flotation froth product is the low manganese impurity of manganese content 1.44%.
Embodiment 4:
Inner Mongol pyrolusite Mn content 5.07%, levigate extremely-200 orders account for 95%, then levigate sample ore is added in the silicate bacteria culture medium, 25 ℃ of shaking flask 8d of inoculation silicate bacteria, pyrolusite behind the filtration washing carries out flotation in the XFD hanging trough flotator, pulp density 50%, inhibitor is calgon, and consumption is 500g/t, collecting agent ether amine consumption 600g/t, the rough concentrate that obtains is again selected, the inhibitor consumption is 300g/t, and collector dosage 300g/t is selected for the third time, without inhibitor, collector dosage 150g/t.
This routine result of implementation is: flotation concentrate manganese content is 25.13%, and manganese recovery ratio is 70.44%.
Claims (5)
1. the method for floating of a pyrolusite stone is characterized in that step is as follows:
(1) pyrolusite stone is finely ground to-200 orders and accounts for 50-98%;
(2) sample ore that step (1) is obtained places the fluid nutrient medium of inoculation silicate bacteria to carry out preliminary treatment; Silicate bacteria is purchased from Chinese agriculture microorganism fungus kind preservation administrative center, ACCC numbering bacterial classification Chinese formal name used at school: colloid bacillus cereus, deposit number: 01429;
(3) get the pretreated pyrolusite washing and filtering of step (2), adding water adjusting pulp density is 10-50%;
(4) add a certain amount of inhibitor in the ore pulp in step (3);
(5) add a certain amount of cation-collecting agent in the ore pulp in step (4), carry out flotation, obtaining the interior product of groove is final manganic concerntrate.
2. the method for floating of a kind of pyrolusite stone according to claim 1 is characterized in that step (2) shaking flask incubation time is 1～8d, and temperature is 15-30 ℃.
3. the method for floating of a kind of pyrolusite stone according to claim 1, it is characterized in that inhibitor is the mixture of waterglass, calgon, tannin, carboxymethyl cellulose or calgon, carboxymethyl cellulose and tannin in the step (4), the inhibitor consumption is 100g/t-1000g/t.
4. the method for floating of a kind of pyrolusite stone according to claim 1 is characterized in that the cation-collecting agent consumption that adds in rapid (5) is 100g/t-600g/t.
5. the method for floating of a kind of pyrolusite stone according to claim 1, when it is characterized in that the pyrolusite grade is lower than 10%, can adopt multistage selected with scan, until the manganic concerntrate grade reaches 20%-38%.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104475265A (en) * | 2014-11-21 | 2015-04-01 | 广西大学 | Method for flotation removal of coronadite out of manganic concerntrate |
| CN105347320A (en) * | 2015-12-08 | 2016-02-24 | 中南大学 | Bacterial leaching agent and method for leaching phosphorus from apatite floatation tailings |
| CN105833986A (en) * | 2016-05-23 | 2016-08-10 | 武汉工程大学 | Demanganizing direct-reverse flotation process for manganese low-grade phosphate ores |
| CN109225651A (en) * | 2018-09-17 | 2019-01-18 | 湖南有色金属研究院 | A kind of method for floating of manganese spar |
| CN110898998A (en) * | 2019-11-25 | 2020-03-24 | 太原理工大学 | Method for flotation of phlogopite by synergistic effect of microorganisms and dodecylamine |
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| US5700369A (en) * | 1997-01-14 | 1997-12-23 | Guangzhou Institute Of Geochemistry Chinese Academy Of Sciences | Process for adsorboaggregational flotation of Carlin type natural gold ore dressing |
| CN1793322A (en) * | 2005-11-28 | 2006-06-28 | 中国铝业股份有限公司 | High-efficient bauxite microorganism ore dressing bacterial and screening process thereof |
| CN101371998A (en) * | 2008-08-27 | 2009-02-25 | 花垣县强桦矿业有限责任公司 | Flotation method of low ore grade manganous carbonate ore |
| CN101555548A (en) * | 2009-04-24 | 2009-10-14 | 北京科技大学 | Method for improving bioleaching effect of municipal solid waste incineration flying ash |
| CN102489415A (en) * | 2011-12-06 | 2012-06-13 | 北京科技大学 | Application of rhodococcuserythropolis in separation of hematite and separation method thereof |
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2012
- 2012-09-29 CN CN201210380245.2A patent/CN102861674B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5700369A (en) * | 1997-01-14 | 1997-12-23 | Guangzhou Institute Of Geochemistry Chinese Academy Of Sciences | Process for adsorboaggregational flotation of Carlin type natural gold ore dressing |
| CN1793322A (en) * | 2005-11-28 | 2006-06-28 | 中国铝业股份有限公司 | High-efficient bauxite microorganism ore dressing bacterial and screening process thereof |
| CN101371998A (en) * | 2008-08-27 | 2009-02-25 | 花垣县强桦矿业有限责任公司 | Flotation method of low ore grade manganous carbonate ore |
| CN101555548A (en) * | 2009-04-24 | 2009-10-14 | 北京科技大学 | Method for improving bioleaching effect of municipal solid waste incineration flying ash |
| CN102489415A (en) * | 2011-12-06 | 2012-06-13 | 北京科技大学 | Application of rhodococcuserythropolis in separation of hematite and separation method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104475265A (en) * | 2014-11-21 | 2015-04-01 | 广西大学 | Method for flotation removal of coronadite out of manganic concerntrate |
| CN104475265B (en) * | 2014-11-21 | 2017-01-18 | 广西大学 | Method for flotation removal of coronadite out of manganic concerntrate |
| CN105347320A (en) * | 2015-12-08 | 2016-02-24 | 中南大学 | Bacterial leaching agent and method for leaching phosphorus from apatite floatation tailings |
| CN105833986A (en) * | 2016-05-23 | 2016-08-10 | 武汉工程大学 | Demanganizing direct-reverse flotation process for manganese low-grade phosphate ores |
| CN109225651A (en) * | 2018-09-17 | 2019-01-18 | 湖南有色金属研究院 | A kind of method for floating of manganese spar |
| CN110898998A (en) * | 2019-11-25 | 2020-03-24 | 太原理工大学 | Method for flotation of phlogopite by synergistic effect of microorganisms and dodecylamine |
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