CN104190549A - Composite inhibitor for reverse flotation of hematite - Google Patents
Composite inhibitor for reverse flotation of hematite Download PDFInfo
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- CN104190549A CN104190549A CN201410444595.XA CN201410444595A CN104190549A CN 104190549 A CN104190549 A CN 104190549A CN 201410444595 A CN201410444595 A CN 201410444595A CN 104190549 A CN104190549 A CN 104190549A
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Abstract
The invention provides a composite inhibitor for reverse flotation of hematite. The composite inhibitor is characterized in that components of the composite inhibitor comprise, by weight, 65 percent to 75 percent of acrylic sodium salt polymer, 10 percent to 15 percent of carboxymethyl starch and 15 percent to 20 percent of water. The composite inhibitor for reverse flotation of the hematite has the advantages that preparation is easy, water solubility is good, configuration temperature is low, and the inhibitor is non-toxic and odourless; the use amount of the inhibitor is small and is only one fifth of that of corn starch; the inhibition effect on the hematite is good, and the iron recycling rate is high; the inhibitor is used at normal temperature, and is easy to store and not prone to going bad.
Description
Technical field
The present invention relates to a kind of medicament field of beneficiation inhibitor, particularly relate to a kind of composite inhibitor for hematite reverse flotation.
Background technology
At present, domestic open and industrial conventional hematite reverse flotation inhibitor has following several:
Chinese patent CN201110362410.7 disclosed " composite modified starch as hematite reverse flotation inhibitor and preparation method thereof ", its technical scheme is: raw material is starch, clorox is oxidant, sodium sulfite and natrium nitrosum are esterifying agent, the chloro-2-Hydroxyproyl Trimethyl of 3-quaternary ammonium salt is cationic reagent, caustic alkali is catalyst, adds water and makes.Its proportioning is counted by weight: 100 parts of raw starch, 0.5 ~ 10 part of clorox, 1.2 ~ 7.0 parts of sodium sulfites, 0.2 ~ 1.2 part of natrium nitrosum, 0.5 ~ 3.5 part of the chloro-2-Hydroxyproyl Trimethyl of 3-quaternary ammonium salt, 3.0 ~ 7.0 parts, caustic alkali, 25 ~ 40 parts, water.
Chinese patent CN01106060.3 disclosed " iron ore antifloating inhibitor and preparation method thereof ", its technical scheme is: raw material is comprised 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 and wherein stir and evenly mix and get final product.
Chinese patent CN99103401. 5 disclosed " a kind of preparation method of iron ore antifloating inhibitor ", its technical scheme is: raw material is aromatic compound, sulfonating agent, water, formaldehyde, NaOH, through sulfonating reaction, hydrolysis, condensation reaction, neutralization reaction, makes.
Chinese patent CN201310569274.8 disclosed " a kind of CMS inhibitor for hematite reverse flotation ", its technical scheme is: raw material is CMS, compound method is will in compounding bin, to put into by the water of 8～10 times of CMS weight under normal temperature, add again CMS, stir 1 hour, then add water and be mixed with by weight percentage 1.5～3.0% carboxymethyl starch soln and get final product.
Hematite separation factory at home, comparatively conventional reverse flotation inhibitor is cornstarch.Cornstarch has played certain effect to carrying Fe and reducing Si, still, and in use, the preparation more complicated of cornstarch, need to add NaOH, adds water and heats to 90 ℃ of causticizations, therefore, the process for preparation of starch solution, both wasted energy, starch solution character after preparation is unstable again, especially summer high temperature season, the holding time can not be long, otherwise easily putrid and deteriorated, lose due inhibitory action, affect sorting index; And cornstarch is selectively bad, iron recovery is low, has caused the waste of resource; In addition, cornstarch unit consumption is high, and consumption is large, causes consuming excessively of grain.
Therefore, need the efficient hematite reverse flotation inhibitor of development of new, realize normal temperature preparation, improve the selective of inhibitor, and then raising iron recovery, and reduce inhibitor consumption, meet the needs of mineral processing production, reduce depending on unduly and consuming of grain, there is important strategic importance and economic worth.
Summary of the invention
The object of this invention is to provide a kind of composite inhibitor for hematite reverse flotation.
According to the composite inhibitor for hematite reverse flotation of the present invention, it is characterized in that, its component and percentage by weight are: polypropylene carboxylic acid sodium 65 ~ 75%, CMS 10 ~ 15%, water 15 ~ 20%.
According to the composite inhibitor for hematite reverse flotation of the present invention, it is characterized in that, its component and percentage by weight are: polypropylene carboxylic acid sodium 75%, CMS 10 %, water 15%.
According to the composite inhibitor for hematite reverse flotation of the present invention, it is characterized in that, its component and percentage by weight are: polypropylene carboxylic acid sodium 70%, CMS 15%, water 15%.
According to the composite inhibitor for hematite reverse flotation of the present invention, it is characterized in that, its component and percentage by weight are: polypropylene carboxylic acid sodium 65%, CMS 15%, water 20%.
Wherein, polypropylene carboxylic acid sodium is the low-molecular-weight polypropylene carboxylic acid sodium of molecular weight between 5-6 ten thousand; To CMS is the CMS of substitution value between 10% ~ 20%.
The preparation method who is used for the composite inhibitor of hematite reverse flotation is: by weight percentage, by polypropylene carboxylic acid sodium 65 ~ 75%, CMS 10 ~ 15%, water 15 ~ 20%, at 10 ℃ ~ 20 ℃ temperature, through the speed of 400 ~ 1200 r/min, be uniformly mixed.
The using method that is used for the composite inhibitor of hematite reverse flotation is: proportional arrangement becomes 3% ~ 20% directly to add after the abundant mix and blend of mixing cirtern and ore pulp routinely, carries out flotation in flotation cell.
The mechanism of action of composite inhibitor:
(1) carboxylate radical in polyethylene carboxylic acid sodium and CMS exists with-COO-ionic species under alkali condition, the cation of the iron on-COO-and bloodstone surface produces cooperate and bond function, there is chemisorption with the effect of iron mineral surface-active site, thereby by thin iron particle absorption; In addition polyethylene carboxylic acid sodium and CMS are also adsorbed in iron mineral surface with hydrogen bond and Van der Waals force.These active forces synergy, by the iron Selective feeding in ore pulp adsorb;
(2) micel after polyethylene carboxylic acid sodium chain structure and the hydrophily iron mineral particle that made selective absorption is polymerized to supermolecule and sedimentation occurs, thereby has reached separated with gangue quartz particles and silicate mineral;
(3) network structure of CMS and polyethylene carboxylic acid sodium chain structure generation hydrogen bond association, help the generation of absorption, flocculation and the sedimentation of polyethylene carboxylic acid sodium molecule and iron mineral particle complementaryly, thereby the iron mineral that suppresses efficiently various granular sizes, particularly ultra-fine granulated iron particle.
The feature that is used for the composite inhibitor of hematite reverse flotation is:
1, be easy to preparation, good water solubility, configuration temperature is low, nonpoisonous and tasteless;
2, consumption is little, is only 1/5th of cornstarch;
3, good to iron ore inhibition, iron recovery is high, can reach iron resource high efficiente callback and utilize object;
4, the solution after preparation, without insulation, is used at normal temperatures, easily preserves, not perishable.
The specific embodiment
Following embodiment, only for the present invention is explained, does not form the restriction to claim scope, and other alternative means that those skilled in the art can expect according to description all should be within the protection domain of the claims in the present invention.
embodiment 1:
Press the percentage by weight of polypropylene carboxylic acid sodium 75%, CMS 10 %, water 15%, at 18 ℃ ~ 20 ℃ temperature, through the speed of 800 r/min, be uniformly mixed, obtain composite inhibitor.
Certain hematite separation factory flotation is to ore deposit, iron grade is TFe 47.36%, granularity is-0.074mm, grain size content 91.3%, adopts one roughing, primary cleaning, scans reverse flotation flowsheet three times, and flotation conditions is: pulp density 45%, 40 ℃ of flotation temperatures, pH value 11.5, above-mentioned composite inhibitor consumption 200g/t, calcium oxide activator level 500g/t, LKY collector dosage 530g/t, the index of acquisition iron concentrate grade 67.19%, iron recovery 83.09%.
Comparative test result: cornstarch inhibitor 1000g/t, other flotation conditions is all identical, the index that acquisition iron concentrate grade 66.41%, the TFe rate of recovery are 82.61%.
embodiment 2:
Press the percentage by weight of polypropylene carboxylic acid sodium 70%, CMS 15%, water 15%, at 18 ℃ ~ 20 ℃ temperature, through the speed of 600 r/min, be uniformly mixed, obtain composite inhibitor.
The mixing magnetic concentrate sample of certain iron ore beneficiating factory, iron grade is TFe 48.22%, granularity is-0.074mm, grain size content 95.34%, adopts one roughing, primary cleaning, scans reverse flotation flowsheet three times, and flotation conditions is: pulp density 45%, 40 ℃ of flotation temperatures, pH value 11.5, above-mentioned composite inhibitor consumption 180g/t, calcium oxide activator level 500g/t, LKY collector dosage 530g/t, the index of acquisition iron concentrate grade 66.98%, iron recovery 81.16%.
Comparative test result: cornstarch inhibitor consumption 1100g/t, other flotation conditions is all identical, obtains the index of iron concentrate grade 66.76%, iron recovery 79.75%.
embodiment 3:
Press the percentage by weight of polypropylene carboxylic acid sodium 65%, CMS 15%, water 20%, at 18 ℃ ~ 20 ℃ temperature, through the speed of 400 r/min, be uniformly mixed, obtain composite inhibitor.
The mixing magnetic concentrate sample of certain iron ore beneficiating factory, iron grade is TFe 48.52%, granularity is-0.074mm grain size content 92.51%, adopt one roughing, primary cleaning, scan reverse flotation flowsheet three times, flotation conditions is: pulp density 45%, 40 ℃ of flotation temperatures, pH value 11.5, this composite inhibitor consumption 190g/t, calcium oxide activator level 500g/t, LKY collector dosage 530g/t, the index of acquisition iron concentrate grade 66.81%, iron recovery 80.36%.
Comparative test result: cornstarch inhibitor consumption 1100g/t, other flotation conditions is all identical, obtains the index of iron concentrate grade 66.32%, iron recovery 78.95%.
Claims (4)
1. for a composite inhibitor for hematite reverse flotation, it is characterized in that, its component and percentage by weight are: polypropylene carboxylic acid sodium 65 ~ 75%, CMS 10 ~ 15%, water 15 ~ 20%.
2. the composite inhibitor for hematite reverse flotation according to claim 1, is characterized in that, its component and percentage by weight are: polypropylene carboxylic acid sodium 75%, CMS 10 %, water 15%.
3. the composite inhibitor for hematite reverse flotation according to claim 1, is characterized in that, its component and percentage by weight are: polypropylene carboxylic acid sodium 70%, CMS 15%, water 15%.
4. the composite inhibitor for hematite reverse flotation according to claim 1, is characterized in that, its component and percentage by weight are: polypropylene carboxylic acid sodium 65%, CMS 15%, water 20%.
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| CN201410444595.XA CN104190549A (en) | 2014-09-03 | 2014-09-03 | Composite inhibitor for reverse flotation of hematite |
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| CN201410444595.XA CN104190549A (en) | 2014-09-03 | 2014-09-03 | Composite inhibitor for reverse flotation of hematite |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106824507A (en) * | 2016-12-19 | 2017-06-13 | 东北大学 | The method for separating that a kind of floating stage agent addition reinforcing particulate weak magnetic iron mineral of magnetic is reclaimed |
| CN106824550A (en) * | 2017-03-22 | 2017-06-13 | 辽宁宝翔科技有限公司 | A kind of iron mineral inhibitor and preparation method thereof |
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| US6200377B1 (en) * | 1999-04-16 | 2001-03-13 | Thiele Kaolin Company | Process for beneficiation of mixtures of mineral particles |
| CN101693222A (en) * | 2009-11-02 | 2010-04-14 | 贵州大学 | Method for separating oolitic hematite |
| CN102240604A (en) * | 2010-05-12 | 2011-11-16 | 北京君致清科技有限公司 | Method for using collecting agent prepared from drainage oil for flotation and defluorination of iron ores |
| CN102974470A (en) * | 2012-12-11 | 2013-03-20 | 中国地质科学院矿产综合利用研究所 | Oolitic hematite flocculant and oolitic hematite selective dispersion agglomeration separation method |
| CN102974446A (en) * | 2012-12-11 | 2013-03-20 | 中国地质科学院矿产综合利用研究所 | Oolitic hematite dressing method |
| CN103567078A (en) * | 2013-11-13 | 2014-02-12 | 鞍钢集团矿业公司 | Carboxymethyl starch inhibitor for reverse flotation of hematite |
-
2014
- 2014-09-03 CN CN201410444595.XA patent/CN104190549A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6200377B1 (en) * | 1999-04-16 | 2001-03-13 | Thiele Kaolin Company | Process for beneficiation of mixtures of mineral particles |
| CN101693222A (en) * | 2009-11-02 | 2010-04-14 | 贵州大学 | Method for separating oolitic hematite |
| CN102240604A (en) * | 2010-05-12 | 2011-11-16 | 北京君致清科技有限公司 | Method for using collecting agent prepared from drainage oil for flotation and defluorination of iron ores |
| CN102974470A (en) * | 2012-12-11 | 2013-03-20 | 中国地质科学院矿产综合利用研究所 | Oolitic hematite flocculant and oolitic hematite selective dispersion agglomeration separation method |
| CN102974446A (en) * | 2012-12-11 | 2013-03-20 | 中国地质科学院矿产综合利用研究所 | Oolitic hematite dressing method |
| CN103567078A (en) * | 2013-11-13 | 2014-02-12 | 鞍钢集团矿业公司 | Carboxymethyl starch inhibitor for reverse flotation of hematite |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106824507A (en) * | 2016-12-19 | 2017-06-13 | 东北大学 | The method for separating that a kind of floating stage agent addition reinforcing particulate weak magnetic iron mineral of magnetic is reclaimed |
| CN106824550A (en) * | 2017-03-22 | 2017-06-13 | 辽宁宝翔科技有限公司 | A kind of iron mineral inhibitor and preparation method thereof |
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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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Application publication date: 20141210 |
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