CN104624383A - Hematite reverse flotation inhibitor and preparation and use method thereof - Google Patents
Hematite reverse flotation inhibitor and preparation and use method thereof Download PDFInfo
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- CN104624383A CN104624383A CN201410743966.4A CN201410743966A CN104624383A CN 104624383 A CN104624383 A CN 104624383A CN 201410743966 A CN201410743966 A CN 201410743966A CN 104624383 A CN104624383 A CN 104624383A
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Abstract
The invention relates to a hematite reverse flotation inhibitor and a preparation and use method of the hematite reverse flotation inhibitor. The hematite reverse flotation inhibitor is prepared by waste residues generated in the beer brewing process, potassium permanganate, sodium hydroxide and water, and according to the weight ratio of all the components, the waste residues: potassium permanganate: sodium hydroxide: water is 1: five percent to 20 percent: four percent to 20 percent: 80 percent to 120 percent. The hematite reverse flotation inhibitor is easy to prepare, good in floating effect and small in use number, the defect of sodium hydroxide as the inhibitor is overcome, normal temperature preparation is achieved, the selectivity of the inhibitor is improved, then the iron recycling rate is improved, the use number of inhibitors is reduced, the needs of dressing production are met, the guaranteeing degree of iron ore resources in China to the iron and steel industry is improved, and immoderate reliance on grain and consumption of the grain are reduced.
Description
Technical field
The present invention relates to beneficiation inhibitor, particularly a kind of hematite reverse flotation inhibitor and
preparation,using method, belongs to beneficiation reagent field.
Background technology
At present, the open and commercial Application of domestic hematite reverse flotation inhibitor mainly contain following several:
1, CN102443071A discloses a kind of composite modified starch as hematite reverse flotation inhibitor and preparation method thereof, its raw material is starch, clorox is oxidant, sodium sulfite and natrium nitrosum are esterifying agent, 3-chloro-2-hydroxypropyl trimethylammonium based quaternary ammonium salt is cationic reagent, caustic alkali is catalyst, adds water and makes.Its proportioning is counted by weight: raw starch 100 parts, clorox 0.5-10 part, sodium sulfite 1.2-7.0 part, natrium nitrosum 0.2-1.2 part, 3-chloro-2-hydroxypropyl trimethylammonium based quaternary ammonium salt 0.5-3.5 part, caustic alkali 3.0-7.0 part, water 25-40 part.
2, CN1356178A discloses a kind of iron ore antifloating inhibitor and preparation method thereof, its raw material is made up of starch, monoxone, methyl alcohol, NaOH, soda ash and water, and weight proportion is: starch: monoxone: methyl alcohol: NaOH: soda ash: water=100: 15-17: 19-23: 7-9: 9-11: 0.7-1.8.Its preparation process is: after first monoxone and soda ash being stirred and evenly mixed, add in starch and stir, and then methyl alcohol, NaOH and water-soluble solution mixed solution are added wherein stirs and evenly mixs and get final product.
3, CN1231219A discloses a kind of preparation method of iron ore antifloating inhibitor, and its raw material is aromatic compound, sulfonating agent, water, formaldehyde, NaOH, obtains through sulfonating reaction, water medium reaction, condensation reaction, neutralization reaction.
4, CN103567078A discloses a kind of CMS inhibitor for hematite reverse flotation, its raw material is CMS, compound method is will put into by CMS weight 8-10 water doubly in compounding bin under normal temperature, add CMS again, stir 1 hour, then add water be mixed with by weight percentage 1.5 ~ 3.0% carboxymethyl starch soln and get final product.But above-mentioned inhibitor is due to aspects such as technical-economic indexes, fail to apply aborning or be eliminated.
At present, the reverse flotation inhibitor employing cornstarch that domestic hematite separation factory is the most frequently used, cornstarch serves certain effect to carrying Fe and reducing Si, but also there is following problem: one is that cornstarch needs high temperature 90 DEG C preparation; Two is that cornstarch is selective good not enough, and iron recovery is low, causes the waste of resource; Three is that cornstarch unit consumption is high, and consumption is large, causes consuming excessively of grain.
Summary of the invention
The object of the invention is to be easy to prepare to provide a kind of, flotation effect is good, consumption is few hematite reverse flotation inhibitor and preparation thereof, using method, to overcome the above-mentioned deficiency of cornstarch, realize normal temperature preparation, improve the selective of inhibitor and then improve iron recovery, and reduce inhibitor consumption, not only meet the needs of mineral processing production, also improve China's iron ore deposit to the guarantee degree of steel and iron industry, reduce depending on unduly and consumption grain.
Technical scheme of the present invention is:
A kind of hematite reverse flotation inhibitor, it is characterized in that: be prepared from by the waste residue produced in beer brewing process, potassium permanganate, NaOH and water, the weight proportion of each component is: waste residue: potassium permanganate: NaOH: water=1:5%-20%:4%-20%:80%-120%.
Above-mentioned hematite reverse flotation inhibitor, by weight percentage containing protein 20%-25%, polysaccharide 50%-65% in the waste residue produced in described beer brewing process.
A kind of preparation method of hematite reverse flotation inhibitor, it is characterized in that: be first dissolved in the water accounting for waste residue weight 80%-120% with the waste residue produced in beer brewing process for base stock, temperature controls at 20-40 DEG C, after stirring 5-10min, again the potassium permanganate of the 5%-20% accounting for waste residue weight is added and be wherein oxidized, and stir 3-5min, finally add the 4%-20% NaOH accounting for waste residue weight and carry out causticization, stir 10-15min.
A using method for hematite reverse flotation inhibitor, is characterized in that: flotation conditions is flotation pulp concentration expressed in percentage by weight is 35%-65%, and temperature is 15-45 DEG C, and pH value is 7-11.5; Flotation dosing order is PH adjusting agent, inhibitor, activator, collecting agent or PH adjusting agent, activator, collecting agent, inhibitor successively.
The invention has the beneficial effects as follows:
1, hematite reverse flotation inhibitor of the present invention contains an inhibiting important polar group such as hydroxyl, amido and carboxyl.These polar groups, at the bloodstone adsorption containing strong electronegativity element, thus can make it hydrophilic and reach the object suppressing it to float again in hydrone by hydrogen bond action;
2, normal temperature is prepared, simple and convenient, less energy consumption, not perishable, and reagent consumption is the 10%-60% of cornstarch;
3, primary raw material is trade waste, with low cost, and non-environmental-pollution.
Detailed description of the invention
Hematite reverse flotation inhibitor of the present invention, be prepared from by the waste residue produced in beer brewing process (hereinafter referred to as brew wine waste residue), potassium permanganate, NaOH and water, the weight proportion of each component is: brew wine waste residue: potassium permanganate: NaOH: water=1:5%-20%:4%-20%:80%-120%.Wherein, protein 20%-25%, polysaccharide 50%-65% is contained by weight percentage in brew wine waste residue.The preparation method of this inhibitor is: be first base stock with brew wine waste residue and be dissolved in the water accounting for waste residue weight 80%-120%, temperature controls at 20-40 DEG C, after stirring 5-10min, again the potassium permanganate of the 5%-20% accounting for waste residue weight is added and be wherein oxidized, and stir 3-5min, finally add the 4%-20% NaOH accounting for waste residue weight and carry out causticization, stir 10-15min.During use, flotation pulp concentration expressed in percentage by weight is 35%-65%, temperature is 15-45 DEG C, pH value is 7-11.5, and flotation dosing order is: PH adjusting agent-inhibitor (i.e. this hematite reverse flotation inhibitor)-activator-collecting agent or PH adjusting agent-activator-collecting agent-inhibitor (i.e. this hematite reverse flotation inhibitor).
Now illustrated by three embodiments.
Embodiment 1
Be dissolved in the water of 90 weight portions with the brew wine waste residue of 100 weight portions for base stock, temperature controls at 25 DEG C-28 DEG C, after stirring 6min, the potassium permanganate of 10 weight portions is added and is wherein oxidized, and stir 3min, the NaOH finally adding 10 weight portions carries out causticization, stirs 10min and obtains hematite reverse flotation inhibitor.
Be applied to following flotation environment: certain bloodstone minal (-200 order grain size content 70%), when enuatrol makes collecting agent, flotation pulp concentration expressed in percentage by weight 40%, when flotation pH value is 9, collector dosage is 600g/t, Floatation Rate reaches more than 95%.With this understanding, when above-mentioned inhibitor is added 500g/t, the Floatation Rate of bloodstone minal drops to 50%, strengthen the consumption of inhibitor, when reaching 1000g/t, bloodstone minal Floatation Rate is down to 10%, when inhibitor consumption is 1500g/t, bloodstone minal without floating, is only about 1% substantially.Compared with cornstarch inhibitor, action effect is close, but cost is only about 10% of cornstarch.
Embodiment 2
Be dissolved in the water of 110 weight portions with the brew wine waste residue of 100 weight portions for base stock, temperature controls at 35 DEG C-38 DEG C, after stirring 8min, the potassium permanganate of 15 weight portions is added and is wherein oxidized, and stir 5min, the NaOH finally adding 18 weight portions carries out causticization, stirs 15min and obtains hematite reverse flotation inhibitor.
Be applied to following flotation environment: certain bloodstone minal (-200 order grain size content 90%), when enuatrol makes collecting agent, flotation pulp concentration expressed in percentage by weight 45%, when flotation pH is 9.5, collector dosage is 550g/t, Floatation Rate reaches more than 95%.With this understanding, when above-mentioned inhibitor is added 550g/t, the Floatation Rate of bloodstone minal drops to 55%, strengthen the consumption of inhibitor, when reaching 1100g/t, bloodstone minal Floatation Rate is down to 10%, when inhibitor consumption is 1500g/t, bloodstone minal without floating, is only about 1% substantially.Compared with cornstarch inhibitor, action effect is close, but cost is only about 10% of cornstarch.
Embodiment 3
Be dissolved in the water of 100 weight portions with the brew wine waste residue of 100 weight portions for base stock, temperature controls at 30 DEG C-35 DEG C, after stirring 8min, the potassium permanganate of 6 weight portions is added and is wherein oxidized, and stir 5min, the NaOH finally adding 5 weight portions carries out causticization, stirs 12min and obtains hematite reverse flotation inhibitor.
Be applied to following flotation environment: certain bloodstone minal (-200 order grain size content 92%), when enuatrol makes collecting agent, flotation pulp concentration expressed in percentage by weight 40%, when flotation pH is 10.5, collector dosage is 580g/t, Floatation Rate reaches more than 98%.With this understanding, when above-mentioned inhibitor is added 600g/t, the Floatation Rate of bloodstone minal drops to 50%, strengthen the consumption of inhibitor, when reaching 1150g/t, bloodstone minal Floatation Rate is down to 10%, when inhibitor consumption is 1550g/t, bloodstone minal without floating, is only about 1% substantially.Compared with cornstarch inhibitor, action effect is close, but cost is only about 15% of cornstarch.
Claims (4)
1. a hematite reverse flotation inhibitor, it is characterized in that: be prepared from by the waste residue produced in beer brewing process, potassium permanganate, NaOH and water, the weight proportion of each component is: waste residue: potassium permanganate: NaOH: water=1:5%-20%:4%-20%:80%-120%.
2. hematite reverse flotation inhibitor according to claim 1, is characterized in that: by weight percentage containing protein 20%-25%, polysaccharide 50%-65% in the waste residue produced in described beer brewing process.
3. the preparation method of a hematite reverse flotation inhibitor, it is characterized in that: be first dissolved in the water accounting for waste residue weight 80%-120% with the waste residue produced in beer brewing process for base stock, temperature controls at 20-40 DEG C, after stirring 5-10min, again the potassium permanganate of the 5%-20% accounting for waste residue weight is added and be wherein oxidized, and stir 3-5min, finally add the 4%-20% NaOH accounting for waste residue weight and carry out causticization, stir 10-15min.
4. a using method for hematite reverse flotation inhibitor, is characterized in that: flotation conditions is flotation pulp concentration expressed in percentage by weight is 35%-65%, and temperature is 15-45 DEG C, and pH value is 7-11.5; Flotation dosing order is PH adjusting agent, inhibitor, activator, collecting agent or PH adjusting agent, activator, collecting agent, inhibitor successively.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104437889A (en) * | 2014-12-09 | 2015-03-25 | 鞍钢集团矿业公司 | Hematite anti-floatation depressor |
| WO2017062200A1 (en) * | 2015-10-08 | 2017-04-13 | Kemira Oyj | Moderately oxidized polysaccharide depressants for use in iron ore flotation processes |
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| US20140048455A1 (en) * | 2011-04-13 | 2014-02-20 | Basf Se | Amine and diamine compounds and their use for inverse froth flotation of silicate from iron ore |
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| CN104437889A (en) * | 2014-12-09 | 2015-03-25 | 鞍钢集团矿业公司 | Hematite anti-floatation depressor |
| WO2017062200A1 (en) * | 2015-10-08 | 2017-04-13 | Kemira Oyj | Moderately oxidized polysaccharide depressants for use in iron ore flotation processes |
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Address after: 114001 Anshan District, Liaoning, No. 219 Road, No. 39, Tiedong Applicant after: Anshan Iron and Steel Group Mining Co., Ltd. Address before: 114001 Anshan District, Liaoning, No. 219 Road, No. 39, Tiedong Applicant before: Anshan Iron & Steel Group Mining Co., Ltd. |
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