CN102773169B - Collecting agent capable of achieving iron removal during reverse flotation and desiliconization of magnesite ore and preparation method thereof - Google Patents
Collecting agent capable of achieving iron removal during reverse flotation and desiliconization of magnesite ore and preparation method thereof Download PDFInfo
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- CN102773169B CN102773169B CN201210277468.6A CN201210277468A CN102773169B CN 102773169 B CN102773169 B CN 102773169B CN 201210277468 A CN201210277468 A CN 201210277468A CN 102773169 B CN102773169 B CN 102773169B
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- desiliconization
- reverse flotation
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Abstract
The invention discloses a collecting agent capable of achieving iron removal during reverse flotation and desiliconization of magnesite ore and a preparation method thereof. The collecting agent comprises dodecylamine, glacial acetic acid, octanol and ethionine ester. The preprartion method includes firstly dissolving the dodecylamine into the glacial acetic acid, then adding the octanol to improve molecular association components in the composite, and finally adding the ethionine ester to obtain the collecting agent. The collecting agent has high electrostatic adsorption force to silicate minerals and high preferential adsorption capacity to iron minerals, and can achieve good reverse flotation and desiliconization effects and iron removal effects simultaneously. According to the collecting agent, concentrate contains 0.38% of iron after the reverse flotation under the condition that raw ore contains 0.5% of the iron and flotation raw ore contains 0.65% of the iron after ore grinding, and the quality requirement that concentrate contains less than 0.4% of the iron in the market at present is satisfied.
Description
Technical field
The invention belongs to ore dressing field, relate in a kind of magnesite ore Counterfloatating desiliconization and realize collecting agent of deironing and preparation method thereof.
Background technology
Magnesite is one of Dominant Mineral Resources of a kind of carbonate mineral ，Shi China with industrial value.The magnesite of China approximately 90% is for refractory material at present.Make the impurity SiO in used for refractory material magnesite ore
2, Al
2o
3, Fe
2o
3, CaO etc. is larger on refractory quality impact, especially with Fe
2o
3quality harm to refractory material is maximum.Therefore in magnesite process, the removal of iron not only reduces or eliminates the adverse effect of iron, also can improve concentrate grade.Therefore, in magnesite, the removal of iron is significant.
Iron in magnesite ore has two parts to form, the one, the iron in raw ore, mainly with pyrite, bloodstone, limonite, magnetic iron ore, magnetic iron ore and with magnesite in magnesium isomorph form exist; The 2nd, the iron pollution in grinding process, mainly the oxide form with fe and iron exists.At present, adopt carried out low-intensity (magnetic) separator iron removal by magnetic separation to ore milling product more, to ore pulp after iron removal by magnetic separation, adopts Flowsheet of cationic indirect flotation to carry out desiliconization removal of impurities, and collecting agent adopts lauryl amine more.
Adopt iron removal by magnetic separation, increased the complexity of equipment and technique, and de-ferrous effect is bad.When removing the impurity such as silicon there are no single reverse flotation, realize the relevant report of deironing.Therefore, develop a kind of low, effective, easy to operate collecting agent of cost of realizing deironing in Counterfloatating desiliconization, on improving magnesite ore reverse floatation process, reducing the impact of iron tramp on product quality in product, improve the quality of products significant.
Summary of the invention
The invention provides in a kind of magnesite ore Counterfloatating desiliconization and realize collecting agent of deironing and preparation method thereof, in magnesite ore Counterfloatating desiliconization, realize deironing.
The collecting agent chemical constituent that realizes deironing in magnesite ore Counterfloatating desiliconization provided by the invention is:
Lauryl amine; Glacial acetic acid; Octanol; Thiourethane.
In described magnesite ore Counterfloatating desiliconization, realize the collecting agent of deironing, its mass percent chemical constituent content is:
The collecting agent preparation method who realizes deironing in magnesite ore Counterfloatating desiliconization provided by the invention is:
According to the collecting agent chemical constituent content batching that realizes deironing in above-mentioned magnesite ore Counterfloatating desiliconization, in the glacial acetic acid first lauryl amine being dissolved in, under 20 ~ 40 ℃ of conditions of temperature, stir the molten 5 ~ 10min of acid; Add again octanol to improve molecular association component in compound, and stir 3 ~ 5min; Finally add thiourethane, and stir 3 ~ 5min, obtain realizing in magnesite ore Counterfloatating desiliconization of the present invention the collecting agent of deironing.During flotation, collecting agent is made into the aqueous solution, this collecting agent consumption in reverse flotation is 100-140g.
The present invention compares with existing similar technology, and its significant beneficial effect is embodied in:
According to magnesite ore character, collecting agent provided by the invention has stronger Electrostatic Absorption power to silicates mineral, can the impurity such as the silico-calcium in magnesite ore be realized and effectively being removed.And iron mineral is shown to stronger selective adsorption capacity.And it is little to have foam volume, the advantage such as foam mineralising is effective.This collecting agent is compared with current conventional magnesite ore collecting agent in reverse floatation lauryl amine, tertiary amine, ether amine etc., under the suitable condition of consumption, when obtaining good Counterfloatating desiliconization effect, can obtain good de-ferrous effect.Use this collecting agent, in raw ore iron content 0.5%, after ore grinding, in flotation raw ore under iron content 0.65% condition, after reverse flotation, in concentrate, iron is 0.38%, meets the quality requirement that concentrate iron content is less than 0.4% in the market.And the magnetic separation-method for floating adopting at present, concentrate iron content 0.5% left and right.Collecting agent provided by the invention is with low cost, pollution-free, preparation is simple.
The specific embodiment
With embodiment, further describe the present invention below.
Its chemical constituent mass percentage content of collecting agent that realizes deironing in magnesite ore Counterfloatating desiliconization is:
Lauryl amine 52%; Glacial acetic acid 18%; Octanol 22%; Thiourethane 8%, above each component all adopts industrial chemical.
The constituent content batching providing according to the collecting agent of realizing deironing in above-mentioned magnesite ore Counterfloatating desiliconization, is first dissolved in lauryl amine in glacial acetic acid, stirs the molten 5 ~ 10min of acid under 20 ~ 40 ℃ of conditions of temperature; Add again octanol to improve molecular association component in compound, and stir 3 ~ 5min; Finally add thiourethane, and stir 3 ~ 5min
In magnesite ore Counterfloatating desiliconization provided by the invention, realize the collecting agent laboratory applications example of deironing:
From magnesium ore deposit, Haicheng City refractory material head factory, obtain magnesite ore, after testing impurity F e
2o
3content is 0.50%, sample ore after ball mill ore grinding, Fe
2o
3content is 0.65% (polluted by milling medium), and granularity reaches 75% for-200, and reverse flotation flowsheet is the open circuit floatation process of thick two essences.In XFD type, hang groove type floatation cell and carry out flotation experiment, each flotation sample ore 400g, amount of water is 900mL.Under the environment that is 5.5 at pH, add inhibitor adjusting agent waterglass 1500g/t, calgon 150g/t, and stir 5min, add collecting agent 120g/t of the present invention and stir 3min.Flotation device mixing speed is 1800r/min, and flotation time is 15min.Under the Impurity removal effects such as desiliconization, the calcium condition suitable with traditional medicament, impurity F e in concentrate
2o
3content is 0.38%.
Claims (1)
1. in a magnesite ore Counterfloatating desiliconization, realize the collecting agent of deironing, the chemical constituent of this collecting agent is: lauryl amine, glacial acetic acid, octanol, thiourethane, is characterized in that chemical constituent mass percentage content is: lauryl amine 50-55%, glacial acetic acid 17-22%, octanol 20-25%, thiourethane 6-10%; Its preparation method is: according to above chemical constituent content batching, first lauryl amine is dissolved in glacial acetic acid, stirs the molten 5-10min of acid under 20-40 ℃ of conditions of temperature; Add again octanol to improve molecular association component in compound, and stir 3-5min; Finally add thiourethane, and stir 3-5min, obtain realizing in magnesite ore Counterfloatating desiliconization the collecting agent of deironing.
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|---|---|---|---|
| CN201210277468.6A CN102773169B (en) | 2012-08-06 | 2012-08-06 | Collecting agent capable of achieving iron removal during reverse flotation and desiliconization of magnesite ore and preparation method thereof |
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|---|---|---|---|
| CN201210277468.6A CN102773169B (en) | 2012-08-06 | 2012-08-06 | Collecting agent capable of achieving iron removal during reverse flotation and desiliconization of magnesite ore and preparation method thereof |
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| CN102773169A CN102773169A (en) | 2012-11-14 |
| CN102773169B true CN102773169B (en) | 2014-01-29 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103301950B (en) * | 2013-05-22 | 2016-02-03 | 东北大学 | A kind of combination cation-collecting agent of hematite Counterfloatating desiliconization |
| CN104072161B (en) * | 2014-06-11 | 2015-12-30 | 辽宁东和耐火材料集团有限公司 | After a kind of magnesite choosing, mine tailing prepares the method for calcium magnesia sand |
| CN109569891A (en) * | 2018-12-19 | 2019-04-05 | 沈阳有色金属研究院有限公司 | One kind is for compound flotation collector of magnesite Counterfloatating desiliconization and preparation method thereof |
| CN111389596A (en) * | 2020-03-31 | 2020-07-10 | 中昊(大连)化工研究设计院有限公司 | Collecting agent for flotation desilication and aluminum removal of magnesite and preparation method thereof |
| CN111617885B (en) * | 2020-05-18 | 2022-09-16 | 宜都兴发化工有限公司 | Synchronous reverse flotation process for low-magnesium high-sesqui collophanite |
| CN112237995B (en) * | 2020-09-24 | 2021-11-23 | 昆明理工大学 | Composite collecting agent for reducing flotation foam stability and preparation method and application thereof |
| CN112474063A (en) * | 2020-11-11 | 2021-03-12 | 福建志远矿业有限公司 | Collecting agent for collecting siliceous minerals and preparation method thereof |
| CN114985094A (en) * | 2021-03-02 | 2022-09-02 | 营口盛海化工有限公司 | New technological process for magnesite dressing |
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| CN1015052B (en) * | 1989-06-24 | 1991-12-11 | 鞍山钢铁学院 | Chemical rule for utilizing the flotation technique to purify magnesite ore |
| JPH08218109A (en) * | 1995-02-10 | 1996-08-27 | Nippon Steel Corp | Treatment of molten iron |
| CN1166382A (en) * | 1996-12-12 | 1997-12-03 | 烟台市牟平金矿 | Ore-dressing trapping agent |
| CN101723419B (en) * | 2009-12-23 | 2011-11-16 | 沈阳化工学院 | Method for preparing high purity magnesium carbonate by one-step iron removal method |
| CN102189040B (en) * | 2011-01-26 | 2013-04-03 | 丹东市镁宝镁业有限公司 | Method for carrying out flotation on high-silicon high-calcium low-grade magnesite step by step |
| CN102407189B (en) * | 2011-10-11 | 2013-04-17 | 辽宁科技大学 | Preparation method of reverse flotation collector for bauxite |
| CN102515213A (en) * | 2011-12-19 | 2012-06-27 | 北京科技大学 | Integrated utilization method of low grade magnesite |
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