CN102319636B - Iron mineral reverse floatation inhibitor in iron silicon system and preparation method of iron mineral reverse floatation inhibitor - Google Patents
Iron mineral reverse floatation inhibitor in iron silicon system and preparation method of iron mineral reverse floatation inhibitor Download PDFInfo
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- CN102319636B CN102319636B CN 201110177834 CN201110177834A CN102319636B CN 102319636 B CN102319636 B CN 102319636B CN 201110177834 CN201110177834 CN 201110177834 CN 201110177834 A CN201110177834 A CN 201110177834A CN 102319636 B CN102319636 B CN 102319636B
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Abstract
The invention discloses an iron mineral reverse floatation inhibitor in an iron silicon system and a preparation method of the iron mineral reverse floatation inhibitor. The iron mineral reverse floatation inhibitor is mainly characterized by being prepared from industrial waste such as saccharomycete thalli, calcium chloride, sodium hydroxide and water. The preparation process comprises the following steps of: first, performing hydrolysis on the saccharomycete thalli in an aqueous medium; then, adding calcium chloride to perform ion activation; and finally, adding sodium hydroxide to perform caustification to obtain the iron mineral reverse floatation inhibitor. The inhibitor has a plurality of advantages of low using amount, low cost, simple preparation, no need of heating, environmental friendliness and the like, and has remarkable economic benefit, social benefit and environmental benefit.
Description
Technical field
The present invention relates to biological technical field, specifically relate to iron ore antifloating inhibitor and preparation method thereof in a kind of iron silicon system.
Background technology
Iron is most important metal material in the national product, is widely used in all conglomeraties such as metallurgy, building, machine-building, military project.Along with the high speed development of China's modernization construction, the demand of iron is increasing.Because China's iron ore deposit grade is lower and be mingled with a large amount of silicates materials, general many employings press down the reverse flotation purification iron ore grades of the floating silicon of iron.Therefore in iron silicon FLOTATION SEPARATION system, how desirable inhibition iron ore come-up is key issue.In decades, the inhibitor that suppresses the iron ore come-up in the floatation of iron ore process is done big quantity research and practice both at home and abroad, obtained effect preferably.But develop into the converted starch inhibitor that is most widely used at present from initial ative starch inhibitor, all there are problems such as inhibitor cost height, preparing process complexity, and starchy material belongs to cereal product, is used for industrial production in a large number and also has many unfavorable factors.Therefore if any a kind of efficient, environmental protection and steady sources, cheap trade waste is that main raw material(s) replaces starch to become inhibitor, then is the health that is conducive to very much the mineral processing in China industry, fast-developing.
Summary of the invention
The objective of the invention is to overcome the defective of present reverse flotation iron ore inhibitor, a kind of with low cost, pollution-free, preparation is easy, inhibition is good iron ore inhibitor is provided.
Utilize trade waste saccharomycete thalline to be base stock, be prepared from through water Jie, activation and causticization.Its active principle quality proportioning is: the calcium chloride that adds is 6%～11% of base stock weight, and the NaOH that adds is 4%～7% of base stock weight.
Its main preparation process is: at first in water stage that is situated between, the saccharomycete thalline is water-soluble and stirred 5～10 minutes, and temperature is controlled at 20 ℃～40 ℃; Then calcium chloride is added water in Jie's product and activate, the calcium chloride that adds is 6%～11% of base stock saccharomycete thalline weight, stirs 3～5 minutes; Add NaOH at last and carry out causticization, stirred 10～15 minutes, namely obtain iron ore antifloating inhibitor of the present invention.
According to the infrared spectrum map analysis of this inhibitor as can be known: it contains hydroxyl, amido and carboxyl etc., and they are that the starch inhibitor plays inhibiting important functional group mostly.These polar groups can be by hydrogen bond action in water molecules, can contain the iron ore surface absorption of strong electronegativity element again, thereby makes it hydrophilic and reach the purpose that suppresses its come-up.
Iron ore inhibitor of the present invention has following feature: inhibition efficient height, normal temperature preparation less energy consumption, main raw material(s) are trade waste, and be with low cost, and non-environmental-pollution.
The specific embodiment
This inhibitor is carried out the flotation experiment, and the floatation indicators in conjunction with the contrast different minerals is further described inhibitor of the present invention.
Example one
Bloodstone minal granularity (200 order 70%) is made the situation of collecting agent and has been descended at enuatrol, flotation pH is 9, when collector dosage is 600g/t, and flotation effect is best, and the rate of recovery reaches more than 95%.With this understanding, with 100g trade waste saccharomycete aquation, water Jie temperature is 25 ℃, stirs 8 minutes; Again the adding of 10g calcium chloride is wherein activated, and stirred 5 minutes, add 5g NaOH at last and carry out causticization, stirred 15 minutes, namely obtain inhibitor of the present invention.Inhibitor addition (representing with saccharomycete thalline addition) is when reaching 500g/t, the come-up rate of bloodstone minal drops to 51.68%, strengthen the consumption of inhibitor, when reaching 1000g/t, the bloodstone minal rate of recovery to 9.55%, when the inhibitor consumption was 1500g/t, the bloodstone minal did not have come-up substantially, and the rate of recovery only is about 1% approximately.
Comparison example one
Obtain quartzy minal in China's eastern Liaoning, advanced broken ore grinding and reach requirement granularity (200 order 70%).Be collecting agent with the enuatrol, calcium chloride is that experiment is learnt under the situation of activator: pH is 11.88, and collector dosage is 1000g/t, and when activator level was 400g/t, the rate of recovery maximum of quartzy minal can reach more than 98%.With 100g trade waste saccharomycete aquation, water Jie temperature is controlled to be 30 ℃ with this understanding, stirs 5 minutes; Again the adding of 10g calcium chloride is wherein activated, and stirred 5 minutes, add 5g NaOH at last and carry out causticization, stirred 15 minutes, namely obtain inhibitor of the present invention.When the inhibitor consumption reached 500g/t, the quartzy minal rate of recovery dropped to 97.12%, and inhibition is not obvious.When strengthening the inhibitor consumption to 1000g/t, the quartzy minal rate of recovery to 85.14%, inhibition is small.When the inhibitor consumption reached 1500g/t, the quartzy minal rate of recovery was that 77.12% inhibition is still very little, strengthens the inhibitor consumption once again, and the quartzy minal rate of recovery changes little.
Contrast as can be known: the inhibition iron ore effect of inhibitor of the present invention in iron silicon FLOTATION SEPARATION system is obvious, and small to the inhibition of quartz, has and very significantly selects inhibition.
Example two
Bloodstone minal and quartzy minal are mixed into artificial mineral's (mass ratio 3: 2), the grade of artificial mixed ore is 41.63% after testing, be 11.88 at pH, activator calcium chloride consumption is 400g/t, when collecting agent enuatrol consumption is 800g/t, with 100g trade waste saccharomycete aquation, water Jie temperature is 22 ℃, stirs 10 minutes; 8g wherein activates the calcium chloride adding again, and stirs 3 minutes, adds 7g NaOH at last and carries out causticization, stirs 15 minutes, obtains inhibitor of the present invention.When the inhibitor consumption was 800g/t, iron concentrate grade was that 65.35% rate of recovery is 86.44%.The mixing ratio that changes artificial mixed ore is mass ratio after 9: 11, and mixing the ore deposit grade is 29.11%, carries out the inhibition experiment of inhibitor.When the inhibitor consumption was 400g/t, iron concentrate grade was that 65.88% rate of recovery is 81.89%.
Comparison example two
With converted starch as inhibitor.Starch is selected cornstarch for use, and process for preparation is: 4% the caustic soda of getting starch quality is dissolved in an amount of hot water, and the starch suspension is added in the thermokalite water while stirring, and causticization namely got the converted starch inhibitor in 20 minutes under 90 to 95 degrees centigrade temperature.
When adopting converted starch to be inhibitor, in mass ratio was 3: 2 artificial mixed ore flotation experiment, when converted starch inhibitor consumption reached 900g/t, it was 80.12% that iron concentrate grade reaches 65.31% rate of recovery.In mass ratio was 9: 11 artificial mixed ore flotation experiment, when converted starch inhibitor consumption reached 800g/t, it was 81.36% that iron concentrate grade reaches 65.21% rate of recovery.
Contrast is as can be known: the more common converted starch of inhibitor of the present invention has that consumption is low, concentrate grade and the rate of recovery all improve.
Example three
Obtain bloodstone in mining area, Anshan.Its raw ore iron grade is 22.80%, and raw ore obtains demand grain size (200 order 75%) through behind the comminution, carries out the flotation experiment at XFD type hanging groove formula flotation device, gets ore deposit 200g at every turn, and amount of water is 500ml.Be collecting agent with the enuatrol, consumption is 800g/t, and activator calcium chloride consumption is 400g/t.With 100g trade waste saccharomycete aquation, water Jie temperature is 27 ℃ again, stirs 6 minutes; Again the adding of 9g calcium chloride is wherein activated, and stirred 4 minutes, add 6g NaOH at last and carry out causticization, stirred 15 minutes, namely obtain inhibitor of the present invention.When adding inhibitor 350g/t, flotation gained concentrate grade reaches 66.12%, and the rate of recovery is 80,10%, and when the inhibitor addition increased to 450g/t, concentrate grade was 65.79%, and the rate of recovery reaches 86.55%, and visible FLOTATION SEPARATION is respond well.
Inhibitor of the present invention suppresses iron ore efficient height, and the medicament preparation is easy, with low cost, can be mass-produced.More now having advantages, particularly this inhibitor raw material such as consumption is few, cost is low with common converted starch inhibitor is trade waste, wide material sources, stable.For pressing down the iron medicament in a kind of desirable iron silicon FLOTATION SEPARATION system.
Claims (2)
1. iron ore antifloating inhibitor in the iron silicon system, it is characterized in that this inhibitor is base stock by industrial waste saccharomycete thalline, form through water Jie, activation and causticization, its active principle quality proportioning is: the calcium chloride that adds is 6%～11% of base stock weight, and the NaOH that adds is 4%～7% of base stock weight.
2. the preparation method of iron ore antifloating inhibitor in the iron silicon system is characterized in that its preparation process is: be base stock with industrial waste saccharomycete thalline at first and its water is situated between that water Jie temperature is controlled at 20 ℃～40 ℃, stirs 5～10 minutes; Again calcium chloride is added and wherein activate, the calcium chloride that adds is 6%～11% of industrial waste saccharomycete weight, and stirs 3～5 minutes, adds NaOH at last and carries out causticization, the NaOH that adds is 4%～7% of industrial waste saccharomycete weight, and stirs 10～15 minutes.
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| CN109939835B (en) * | 2017-12-21 | 2021-06-08 | 有研资源环境技术研究院(北京)有限公司 | Flotation inhibitor for separating molybdenite and talc and preparation method thereof |
Citations (3)
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|---|---|---|---|---|
| SU1303195A1 (en) * | 1985-06-20 | 1987-04-15 | Предприятие П/Я А-1997 | Method of flotation of fluorite ores |
| SU1466793A1 (en) * | 1986-03-25 | 1989-03-23 | Научно-Исследовательский И Проектный Институт Обогащения И Механической Обработки Полезных Ископаемых "Уралмеханобр" | Method of floation of magnesite ores |
| CN101204683A (en) * | 2006-12-19 | 2008-06-25 | 淄博市华联矿业有限责任公司 | Anti-flotation Fe-refining and Si-reducing technology medicine |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1303195A1 (en) * | 1985-06-20 | 1987-04-15 | Предприятие П/Я А-1997 | Method of flotation of fluorite ores |
| SU1466793A1 (en) * | 1986-03-25 | 1989-03-23 | Научно-Исследовательский И Проектный Институт Обогащения И Механической Обработки Полезных Ископаемых "Уралмеханобр" | Method of floation of magnesite ores |
| CN101204683A (en) * | 2006-12-19 | 2008-06-25 | 淄博市华联矿业有限责任公司 | Anti-flotation Fe-refining and Si-reducing technology medicine |
Non-Patent Citations (2)
| Title |
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| 代淑娟等.废啤酒酵母溶解相对赤铁矿的抑制作用.《金属矿山》.2008, |
| 废啤酒酵母溶解相对赤铁矿的抑制作用;代淑娟等;《金属矿山》;20080630;第41页第2栏及第43页第1栏3.3节部分 * |
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