CN105435968A - Reverse-flotation desiliconizing method for hematite ore - Google Patents
Reverse-flotation desiliconizing method for hematite ore Download PDFInfo
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- CN105435968A CN105435968A CN201510983515.2A CN201510983515A CN105435968A CN 105435968 A CN105435968 A CN 105435968A CN 201510983515 A CN201510983515 A CN 201510983515A CN 105435968 A CN105435968 A CN 105435968A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/004—Organic compounds
- B03D1/01—Organic compounds containing nitrogen
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/14—Flotation machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/02—Collectors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2203/00—Specified materials treated by the flotation agents; specified applications
- B03D2203/02—Ores
- B03D2203/04—Non-sulfide ores
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Abstract
The invention belongs to the technical field of flotation separation of mineral ores, and specifically relates to a reverse-flotation desiliconizing method for hematite ore. The method comprises the following steps: preparing ore pulp; adding a pH regulator to regulate the pH of the ore pulp into 4 to 6; stirring the ore pulp subjected to pH regulating for 3 minutes; then adding a collecting agent which is N, N-bis(2-hydroxyethyl)-dodecylamine, wherein the amount of added collecting agent is 100 to 300g/t of that of an ore sample; stirring for 3 minutes; then performing reverse flotation for 3 to 6 minutes; correspondingly drying and metering a foam product and a product in a flotation tank after the flotation is finished, wherein the foam product is a tailing, and the product in the tank is a concentrate; calculating the recovery rate and the product level. According to the method, a special collecting agent is selected, and thus a good flotation separating effect can be achieved within a wide pH range; the flotation process can be simplified, and the energy saving effect is obvious.
Description
Technical field
The invention belongs to the floatation separating technology field of mineral ore, be specifically related to a kind of method of hematite ore Counterfloatating desiliconization.
Background technology
China's iron ore deposit enriches, but exploits along with the extension in mine, and the grade of ore reduces year by year, and difficulty selects degree to continue to increase.In recent years, China's iron ore deposit feature that is poor, thin, that mix becomes increasingly conspicuous, and beneficiation cost raises year by year, and is difficult to produce fine quality iron concentrate, constrains the development of China's steel and iron industry to a certain extent.
Concerning difficulty selects lean ore, be only difficult to the requirement reaching smelting, so the status of flotation in iron ore beneficiation is more and more important by traditional gravity treatment, magnetic separation process.At present, the hematite reverse flotation technique of extensive use mainly contains anion reverse floatation and cation reverse flotation two kinds.Anion reverse floatation aliphatic acid makes collecting agent, flotation temperature is high, energy consumption is large, selective poor, dosing greatly and anion reverse floatation agent system will be made complicated with addition of lime-soda mixture, cause the filter efficiency of flotation concentrate very low because slurry pH is higher and adopt the cause of anionic medicament simultaneously, and inhibitor is poor to microfine iron ore inhibition, thus cause flotation tailing grade higher, cause the serious waste of iron resource; It is poorly soluble then to there is collecting agent in cation reverse flotation, needs by hydrochloric acid or acetic acid dissolution, the shortcomings such as medicament preparation inconvenience, flotation efficiency is on the low side, foam viscosity is large, mobility and poor selectivity.
In recent years, along with China advocates development Intensive economy, cost-saving, reduction energy consumption energetically, cation reverse flotation technique obtains in China and develops rapidly.But Problems existing limits the further application of cation reverse flotation technique in above-mentioned cation reverse flotation.
Summary of the invention
For above-mentioned prior art Problems existing, the invention provides a kind of method of hematite ore Counterfloatating desiliconization, object selects new cation-collecting agent, and according to the different flotation behaviors of new cation-collecting agent to bloodstone and quartzy gangue, by flotation, valuable mineral is effectively separated with gangue mineral, reaches efficient desiliconization.
Realize the method for the hematite ore Counterfloatating desiliconization of the object of the invention, carry out according to following steps:
(1) take sample ore and add deionized water in sample ore, making deionized water and sample ore mass ratio be (4 ~ 6): 1, obtain ore pulp, extension groove type floatation cell is adopted to size mixing, hanging groove type floatation cell rotating speed is 1900r/min, and the time of sizing mixing is 1 ~ 3min, adds pH adjusting agent and makes the pH of ore pulp be 4 ~ 6;
(2) the ore pulp 3min after sizing mixing is stirred, then collecting agent N is added, N-bis-(2-ethoxy) lauryl amine, collector dosage is 100 ~ 300g/t sample ore, carries out reverse flotation after stirring 3min, the reverse flotation time is 3 ~ 6min, after flotation terminates, product in froth pulp and flotation cell is dried respectively, measured, calculate the rate of recovery and grade, wherein froth pulp is mine tailing, and in groove, product is concentrate.
Wherein, described sample ore is the Iron grade that bloodstone and quartz are prepared in mass ratio is the composite ore of 42%.
Described extension groove type floatation cell rotating speed is 1900r/min, and the time of sizing mixing is 1 ~ 3min.
Described pH adjusting agent is HCl solution.
Compared with prior art, feature of the present invention and beneficial effect are:
The method of hematite ore Counterfloatating desiliconization of the present invention is with N, N-bis-(2-ethoxy) lauryl amine is collecting agent, can exist with cationic form within the scope of wider pH, interact with electrostatic and Hydrogen Binding Adsorption with mineral surface, therefore good FLOTATION SEPARATION effect is obtained, especially, time about pH values of pulp=5, separating effect is best; And N, N-bis-(2-ethoxy) lauryl amine itself has good frothing capacity, does not need additionally to add foaming agent, medicament kind when decreasing FLOTATION SEPARATION, simplifies flotation flowsheet;
The method of hematite ore Counterfloatating desiliconization of the present invention does not need to add bloodstone inhibitor when FLOTATION SEPARATION just can obtain good separating effect;
The method of hematite ore Counterfloatating desiliconization of the present invention does not need when mineral floating is separated to heat ore pulp, namely can obtain good FLOTATION SEPARATION effect at normal temperatures, have significant energy saving effect.
Accompanying drawing explanation
Fig. 1 is the process chart of hematite ore Counterfloatating desiliconization of the present invention.
Detailed description of the invention
The bloodstone that the embodiment of the present invention adopts and quartzy purity are respectively 99.2% and 99.89%, and granularity is-0.100mm.
The invention process adopts flotation device to be that XFG hangs groove type floatation cell, originates from Jilin Province Prospect Machinery Plant.
Embodiment 1
The method of the hematite ore Counterfloatating desiliconization of the present embodiment, carry out according to following steps:
(1) bloodstone and quartz are mixed with the composite ore sample ore that Iron grade is 42% in mass ratio, take sample ore and add deionized water in sample ore, deionized water and sample ore mass ratio is made to be that 4:1 obtains ore pulp, extension groove type floatation cell is adopted to size mixing, hanging groove type floatation cell rotating speed is 1900r/min, the time of sizing mixing is 1min, adds pH adjusting agent HCl solution and makes the pH of ore pulp be 4;
(2) the ore pulp 3min after sizing mixing is stirred, then add collecting agent N, N-bis-(2-ethoxy) lauryl amine, collector dosage is 120g/t sample ore, reverse flotation is carried out after stirring 3min, the reverse flotation time is 6min, after flotation terminates, dries respectively product in froth pulp and flotation cell, measures, calculate the rate of recovery and grade, wherein froth pulp is mine tailing, and in groove, product is concentrate, and the Iron grade of concentrate through reverse flotation and the rate of recovery are respectively 60.32% and 90.24%.
Embodiment 2
The method of the hematite ore Counterfloatating desiliconization of the present embodiment, carry out according to following steps:
(1) bloodstone and quartz are mixed with the composite ore sample ore that Iron grade is 42% in mass ratio, take sample ore and add deionized water in sample ore, deionized water and sample ore mass ratio is made to be that 5:1 obtains ore pulp, extension groove type floatation cell is adopted to size mixing, hanging groove type floatation cell rotating speed is 1900r/min, the time of sizing mixing is 3min, adds pH adjusting agent HCl solution and makes the pH of ore pulp be 5;
(2) the ore pulp 3min after sizing mixing is stirred, then add collecting agent N, N-bis-(2-ethoxy) lauryl amine, collector dosage is 120g/t sample ore, reverse flotation is carried out after stirring 3min, the reverse flotation time is 5min, after flotation terminates, dries respectively product in froth pulp and flotation cell, measures, calculate the rate of recovery and grade, wherein froth pulp is mine tailing, and in groove, product is concentrate, and the Iron grade of concentrate through reverse flotation and the rate of recovery are respectively 66.60% and 86.59%.
Embodiment 3
The method of the hematite ore Counterfloatating desiliconization of the present embodiment, carry out according to following steps:
(1) bloodstone and quartz are mixed with the composite ore sample ore that Iron grade is 42% in mass ratio, take sample ore and add deionized water in sample ore, deionized water and sample ore mass ratio is made to be that 6:1 obtains ore pulp, extension groove type floatation cell is adopted to size mixing, hanging groove type floatation cell rotating speed is 1900r/min, the time of sizing mixing is 2min, adds pH adjusting agent HCl solution and makes the pH of ore pulp be 6;
(2) the ore pulp 3min after sizing mixing is stirred, then add collecting agent N, N-bis-(2-ethoxy) lauryl amine, collector dosage is 120g/t sample ore, reverse flotation is carried out after stirring 3min, the reverse flotation time is 3 ~ 6min, after flotation terminates, dries respectively product in froth pulp and flotation cell, measures, calculate the rate of recovery and grade, wherein froth pulp is mine tailing, and in groove, product is concentrate, and the Iron grade of concentrate through reverse flotation and the rate of recovery are respectively 65.21% and 83.54%.
Embodiment 4
The method of the hematite ore Counterfloatating desiliconization of the present embodiment, carry out according to following steps:
(1) bloodstone and quartz are mixed with the composite ore sample ore that Iron grade is 42% in mass ratio, take sample ore and add deionized water in sample ore, deionized water and sample ore mass ratio is made to be that 5:1 obtains ore pulp, extension groove type floatation cell is adopted to size mixing, hanging groove type floatation cell rotating speed is 1900r/min, the time of sizing mixing is 2min, adds pH adjusting agent HCl solution and makes the pH of ore pulp be 5;
(2) the ore pulp 3min after sizing mixing is stirred, then add collecting agent N, N-bis-(2-ethoxy) lauryl amine, collector dosage is 100g/t sample ore, reverse flotation is carried out after stirring 3min, the reverse flotation time is 3min, after flotation terminates, dries respectively product in froth pulp and flotation cell, measures, calculate the rate of recovery and grade, wherein froth pulp is mine tailing, and in groove, product is concentrate, and the Iron grade of concentrate through reverse flotation and the rate of recovery are respectively 61.59% and 94.88%.
Embodiment 5
The method of the hematite ore Counterfloatating desiliconization of the present embodiment, carry out according to following steps:
(1) bloodstone and quartz are mixed with the composite ore sample ore that Iron grade is 42% in mass ratio, take sample ore and add deionized water in sample ore, deionized water and sample ore mass ratio is made to be that 6:1 obtains ore pulp, extension groove type floatation cell is adopted to size mixing, hanging groove type floatation cell rotating speed is 1900r/min, the time of sizing mixing is 2min, adds pH adjusting agent HCl solution and makes the pH of ore pulp be 5;
(2) the ore pulp 3min after sizing mixing is stirred, then add collecting agent N, N-bis-(2-ethoxy) lauryl amine, collector dosage is 200g/t sample ore, reverse flotation is carried out after stirring 3min, the reverse flotation time is 5min, after flotation terminates, dries respectively product in froth pulp and flotation cell, measures, calculate the rate of recovery and grade, wherein froth pulp is mine tailing, and in groove, product is concentrate, and the Iron grade of concentrate through reverse flotation and the rate of recovery are respectively 67.84% and 78.35%.
Embodiment 6
The method of the hematite ore Counterfloatating desiliconization of the present embodiment, carry out according to following steps:
(1) bloodstone and quartz are mixed with the composite ore sample ore that Iron grade is 42% in mass ratio, take sample ore and add deionized water in sample ore, deionized water and sample ore mass ratio is made to be that 6:1 obtains ore pulp, extension groove type floatation cell is adopted to size mixing, hanging groove type floatation cell rotating speed is 1900r/min, the time of sizing mixing is 2min, adds pH adjusting agent HCl solution and makes the pH of ore pulp be 5;
(2) the ore pulp 3min after sizing mixing is stirred, then add collecting agent N, N-bis-(2-ethoxy) lauryl amine, collector dosage is 300g/t sample ore, reverse flotation is carried out after stirring 3min, the reverse flotation time is 5min, after flotation terminates, dries respectively product in froth pulp and flotation cell, measures, calculate the rate of recovery and grade, wherein froth pulp is mine tailing, and in groove, product is concentrate, and the Iron grade of concentrate through reverse flotation and the rate of recovery are respectively 69.01% and 68.06%.
Claims (4)
1. a method for hematite ore Counterfloatating desiliconization, is characterized in that carrying out according to following steps:
(1) take sample ore and add deionized water in sample ore, making deionized water and sample ore mass ratio be (4 ~ 6): 1, obtain ore pulp, extension groove type floatation cell is adopted to size mixing, hanging groove type floatation cell rotating speed is 1900r/min, and the time of sizing mixing is 1 ~ 3min, adds pH adjusting agent and makes the pH of ore pulp be 4 ~ 6;
(2) the ore pulp 3min after sizing mixing is stirred, then collecting agent N is added, N-bis-(2-ethoxy) lauryl amine, collector dosage is 100 ~ 300g/t sample ore, carries out reverse flotation after stirring 3min, the reverse flotation time is 3 ~ 6min, after flotation terminates, product in froth pulp and flotation cell is dried respectively, measured, calculate the rate of recovery and grade, wherein froth pulp is mine tailing, and in groove, product is concentrate.
2. the method for a kind of hematite ore Counterfloatating desiliconization according to claim 1, is characterized in that described sample ore be bloodstone and the Iron grade prepared in mass ratio of quartz is the composite ore of 42%.
3. the method for a kind of hematite ore Counterfloatating desiliconization according to claim 1, it is characterized in that described extension groove type floatation cell rotating speed is 1900r/min, the time of sizing mixing is 1 ~ 3min.
4. the method for a kind of hematite ore Counterfloatating desiliconization according to claim 1, is characterized in that described pH adjusting agent is HCl solution.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106824546A (en) * | 2017-03-06 | 2017-06-13 | 东北大学 | A kind of magnesite ore puies forward the method that silicon drops in magnesium |
| CN106944262A (en) * | 2017-04-10 | 2017-07-14 | 太原理工大学 | A kind of compound cation-collecting agent and preparation method thereof |
| CN107570326A (en) * | 2017-09-12 | 2018-01-12 | 东北大学 | A kind of method of smithsonite type zinc oxide ore flotation desilication |
| CN110038728A (en) * | 2019-04-24 | 2019-07-23 | 东北大学 | A method of hematite reverse flotation is carried out using high degradability amine collector |
| CN111295246A (en) * | 2017-10-06 | 2020-06-16 | 淡水河谷公司 | Method for concentrating iron ore slurry |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5551516A (en) * | 1995-02-17 | 1996-09-03 | Dowell, A Division Of Schlumberger Technology Corporation | Hydraulic fracturing process and compositions |
| CN101816981A (en) * | 2010-03-16 | 2010-09-01 | 武汉理工大学 | Environmentally-friendly amine cationic collector and using method thereof |
| CN102259062A (en) * | 2011-05-16 | 2011-11-30 | 中南大学 | Cationic flotation collector and preparation method thereof |
| CN103301950A (en) * | 2013-05-22 | 2013-09-18 | 东北大学 | Combined cationic collector for reverse flotation desilication of hematite stone |
| CN103769307A (en) * | 2013-10-28 | 2014-05-07 | 东北大学 | Collecting agent for water-soluble cations, preparation method thereof and application thereof |
-
2015
- 2015-12-24 CN CN201510983515.2A patent/CN105435968A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5551516A (en) * | 1995-02-17 | 1996-09-03 | Dowell, A Division Of Schlumberger Technology Corporation | Hydraulic fracturing process and compositions |
| CN101816981A (en) * | 2010-03-16 | 2010-09-01 | 武汉理工大学 | Environmentally-friendly amine cationic collector and using method thereof |
| CN102259062A (en) * | 2011-05-16 | 2011-11-30 | 中南大学 | Cationic flotation collector and preparation method thereof |
| CN103301950A (en) * | 2013-05-22 | 2013-09-18 | 东北大学 | Combined cationic collector for reverse flotation desilication of hematite stone |
| CN103769307A (en) * | 2013-10-28 | 2014-05-07 | 东北大学 | Collecting agent for water-soluble cations, preparation method thereof and application thereof |
Non-Patent Citations (1)
| Title |
|---|
| 刘文刚等: "新型捕收剂在赤铁矿反浮选中的应用", 《东北大学学报（自然科学版）》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106824546A (en) * | 2017-03-06 | 2017-06-13 | 东北大学 | A kind of magnesite ore puies forward the method that silicon drops in magnesium |
| CN106944262A (en) * | 2017-04-10 | 2017-07-14 | 太原理工大学 | A kind of compound cation-collecting agent and preparation method thereof |
| CN106944262B (en) * | 2017-04-10 | 2019-10-11 | 太原理工大学 | A kind of compound cation-collecting agent and preparation method thereof |
| CN107570326A (en) * | 2017-09-12 | 2018-01-12 | 东北大学 | A kind of method of smithsonite type zinc oxide ore flotation desilication |
| CN107570326B (en) * | 2017-09-12 | 2019-08-20 | 东北大学 | A kind of method of smithsonite type zinc oxide ore flotation desilication |
| CN111295246A (en) * | 2017-10-06 | 2020-06-16 | 淡水河谷公司 | Method for concentrating iron ore slurry |
| CN110038728A (en) * | 2019-04-24 | 2019-07-23 | 东北大学 | A method of hematite reverse flotation is carried out using high degradability amine collector |
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Application publication date: 20160330 |