CN102962143A - Preparation method of phosphorite carbonate mineral collector - Google Patents
Preparation method of phosphorite carbonate mineral collector Download PDFInfo
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- CN102962143A CN102962143A CN2012105135383A CN201210513538A CN102962143A CN 102962143 A CN102962143 A CN 102962143A CN 2012105135383 A CN2012105135383 A CN 2012105135383A CN 201210513538 A CN201210513538 A CN 201210513538A CN 102962143 A CN102962143 A CN 102962143A
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Abstract
A phosphorite carbonate mineral collector belongs to the technical field of mineral processing, and particularly relates to mineral separation of a deposited middle-low grade phosphorite, which is one of core technologies for normal production and processing of middle-low grade phosphorite. The processing technological flow is as follows: rough fatty acid methyl ester or fatty acid is reacted with NaOH to obtain a product, the product is added with phthalic acid ester to be uniformly stirred, and then a target agent is obtained. When the agent produced by the method is used in the technology of reverse flotation of carbonate from the middle-low grade phosphorite, an ore concentrate with P2O5 more than or equal to 30% and MgO less than or equal to 0.6% can be separated from a crude ore with P2O5 being about plus and minus 20% and MgO being 3%-7% in a floating way, and the ore dressing recovery percentage is more than 85%. The agent is suitable for removing carbonate minerals from phosphorite, and is particularly suitable for the reverse floatation of the middle-low grade carbonate type phosphorite ore.
Description
Technical field
A kind of phosphorus ore carbonate mineral collecting agent belongs to technical field of mineral processing, specially refers to low-grade phosphorite ore dressing in the appositional pattern, is to realize one of the normal production and processing core of mid low grade phosphate rock beneficiation reagent.
Background technology
The phosphorite ore deposit is topmost rock phosphate in powder in the world phosphate resource, and its reserves account for 74% of world phosphate gross reserves.The characteristics of this class ore are that ore bed is thick, of high grade, scale is large.But because phosphorus ore containing is carbonate fluorapatite, theoretical P2O5 content is lower, and crystal is tiny, and is mixed with quantity and does not wait, the impurity that grade is different, thereby require selected fine size, technological process is complicated, belongs to one of difficult ore dressing.
To the ore dressing in phosphorite ore deposit, flotation be the most effective also be most widely used method.The used collecting agent of this ore deposit flotation mostly is the fatty acid medicament at present.
The fatty acid medicament is a kind of selective not strong collecting agent, and along with the reduction of head grade, it is selective to strengthen medicament; Along with the development of other industry and the development of flotation cause, the demand of aliphatic acid constantly rises, and the aliphatic acid price is risen steadily, and the fatty acid collecting agent cost also constantly rises.For the flotation of phosphate rock technology, reduce cost, strengthening the medicament specific aim is at present still to one of long-term major heading.
Summary of the invention: the present invention is intended to use rough aliphatic acid and methyl esters series products thereof, and makes the more special-purpose aliphatic acid of its cost low, by adding special assistant its searching property of choosing is improved.
The present invention is by being achieved with following technical proposals:
---product adds phthalic acid ester again and mixes thoroughly---namely obtains this collecting agent, the steps include: with crude fatty acid methyl esters and NaOH effect
It is in 10%～20% the NaOH solution, to stir 20min 30～80 ℃ of temperature that a, fatty acid methyl ester or aliphatic acid add concentration, and the mass ratio of Fatty acid methyl ester and NaOH is 3.80-4.13; 23.50-23.17;
B, the phthalic acid ester that adds in the step a gained mixed solution stir 20min, get final product, and the addition of phthalic acid ester accounts for the 5-20% of base stock.
Described fatty acid ester or aliphatic acid refer to be rich in oleic acid, linoleic acid and palmitic acid, three's content and＞70% ester class or carboxylic-acid substance.
This method is produced resulting medicament and is used for can making P in the anti-floating carbonate technique of low-grade phosphorite
2O
5Be 20% ±, MgO is that 3～7% raw ore floatingly selects P2O5 〉=30%, the concentrate of MgO≤0.6%, recovery rate in ore-dressing reaches more than 85 %; This medicament is applicable to phosphorus ore and removes carbonate mineral, the reverse flotation in low-grade carbonate type phosphate rock ore deposit in being particularly useful for.
Below by specific embodiment in detail the present invention is described in detail:
Embodiment 1
It is in 10% the NaOH solution, to stir 20min 30 ℃ of temperature that fatty acid methyl ester or aliphatic acid add concentration, and the mass ratio of Fatty acid methyl ester and NaOH is 3.80-4.13:23.50-23.17;
Add phthalic acid ester in the gained mixed solution, stir 20min, get final product, the addition of phthalic acid ester accounts for 5% of base stock.
Embodiment 2
It is in 15% the NaOH solution, to stir 20min 50 ℃ of temperature that fatty acid methyl ester or aliphatic acid add concentration, and the mass ratio of Fatty acid methyl ester and NaOH is 3.80-4.13:23.50-23.17;
Add phthalic acid ester in the gained mixed solution, stir 20min, get final product, the addition of phthalic acid ester accounts for 12% of base stock.
Embodiment 3
It is in 20% the NaOH solution, to stir 20min 80 ℃ of temperature that fatty acid methyl ester or aliphatic acid add concentration, and the mass ratio of Fatty acid methyl ester and NaOH is 3.80-4.13:23.50-23.17;
B, add phthalic acid ester in the gained mixed solution, stir 20min, get final product, the addition of phthalic acid ester accounts for 20% of base stock.
Embodiment 4
Add first water 70g in the reaction vessel, add again NaOH3.97g, heat up 50 ℃, add fatty acid methyl ester 23.33g, stir 20min, add again phthalic acid ester 2.7g, mixing thoroughly, can obtain the collecting agent 100g of 30% concentration, is 22.52% with this collecting agent to Haikou Phosphorus Mineral Area P2O5, MgO is that 3.56% raw ore is roughly selected and carried out Experimental Comparison with this ore deposit is existing with collecting agent, obtains following result:
Table 1 demonstration test result
As seen this pharmacy effect is existing consistent with collecting agent with this factory.
Embodiment 5
Add first water 70g in the reaction vessel, add again NaOH3.80g, heat up 40 ℃, add rough aliphatic acid 23.50g, stir 20min, add again phthalic acid ester 2.7g, mix thoroughly, can obtain the collecting agent 100g of 30% concentration, carry out the reverse flotation contrast test with this collecting agent in high magnesium ore deposit, certain mining area, and compare with the existing with medicament in this ore deposit, just like drawing a conclusion:
Table 2 demonstration test result
As seen this medicament is compared with existing with medicament, and under the equal conditions, the tailings grade of this medicament can reach 6.59%, and existing with medicament is up to 8.97%, because being reverse floatation process, the collecting agent floating be phosphate mineral, as seen selectively to show with medicament good for this medicament.
Reagent factory is with under former collecting agent factory formula and the process conditions, primary raw material requires to adopt refined fat acid, because of this refined fat acid manufacturing expense higher, 2012 purchasing prices are 10500 yuan/tons, and use during with this prescription and explained hereafter be rough aliphatic acid or its methyl esters series products, purchasing price was 7850 yuan/tons in 2012, and both compare, and unit cost descends more than 530 yuan.Calculate according to producing 1.5 ten thousand tons of collecting agent in reverse floatation per year, can save production cost about 7,950,000 yuan this year.
Claims (3)
1. the preparation method of a phosphorus ore carbonate mineral collecting agent is characterized in that, adds phthalic acid ester by the product after crude fatty acid methyl esters and the NaOH effect again and mixes thoroughly, namely obtains this collecting agent, the steps include:
It is in 10%～20% the NaOH solution, to stir 20min 30～80 ℃ of temperature that a, fatty acid methyl ester or aliphatic acid add concentration, and the mass ratio of Fatty acid methyl ester and NaOH is 3.80-4.13:23.50-23.17;
B, the phthalic acid ester that adds in the step a gained mixed solution stir 20min and get final product, and the addition of phthalic acid ester accounts for the 5-20% of base stock.
2. the preparation method of phosphorus ore carbonate mineral collecting agent according to claim 1 is characterized in that, described fatty acid methyl ester or aliphatic acid refer to be rich in ester class or the carboxylic-acid substance of oleic acid, linoleic acid and palmitic acid.
3. the preparation method of phosphorus ore carbonate mineral collecting agent according to claim 1 is characterized in that, described ester class or carboxylic-acid substance of being rich in oleic acid, linoleic acid and palmitic acid, wherein oleic acid, linoleic acid and palmitic acid three content and＞70%.
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| CN2012105135383A CN102962143A (en) | 2012-12-05 | 2012-12-05 | Preparation method of phosphorite carbonate mineral collector |
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| CN2012105135383A CN102962143A (en) | 2012-12-05 | 2012-12-05 | Preparation method of phosphorite carbonate mineral collector |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103721855A (en) * | 2013-12-31 | 2014-04-16 | 云南磷化集团有限公司 | Collecting agent capable of efficiently removing carbonate minerals in collophane |
| CN105435969A (en) * | 2015-12-09 | 2016-03-30 | 湖北富邦科技股份有限公司 | Collecting agent improving filtering effect for phosphorite floatation and preparing method of collecting agent |
| CN106111347A (en) * | 2016-08-08 | 2016-11-16 | 湖北富邦科技股份有限公司 | A kind of except the rock phosphate in powder collecting agent in reverse floatation of calcite |
| CN106179765A (en) * | 2016-07-27 | 2016-12-07 | 湖北富邦科技股份有限公司 | The high phosphate reverse flotation collecting agent of magnesium rate and preparation method drop in a kind of phosphorus that carries |
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| CN1287889A (en) * | 1999-09-10 | 2001-03-21 | 贵州宏福实业开发有限总公司 | Reverse flotation capture agent for carbonate type phosphate rock ore |
| CN101293226A (en) * | 2008-06-16 | 2008-10-29 | 湖北富邦化工科技有限公司 | Inverse floatation collecting agent for carbonate phosphorus ore |
| CN101791591A (en) * | 2010-01-05 | 2010-08-04 | 湖北富邦化工科技有限公司 | Phosphorite low-temperature foam flotation collector and preparation method thereof |
| CN101797536A (en) * | 2010-01-06 | 2010-08-11 | 云南省化工研究院 | Collophanite flotation collector and method for preparing same |
| CN102205278A (en) * | 2010-12-16 | 2011-10-05 | 云南磷化集团有限公司 | Collophanite flotation collecting agent prepared from rubber seed oil and method for preparing same |
| CN102513221A (en) * | 2012-01-10 | 2012-06-27 | 贵州大学 | Carbonate phosphorite reverse flotation combined collecting agent and preparation method thereof |
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- 2012-12-05 CN CN2012105135383A patent/CN102962143A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1287889A (en) * | 1999-09-10 | 2001-03-21 | 贵州宏福实业开发有限总公司 | Reverse flotation capture agent for carbonate type phosphate rock ore |
| CN101293226A (en) * | 2008-06-16 | 2008-10-29 | 湖北富邦化工科技有限公司 | Inverse floatation collecting agent for carbonate phosphorus ore |
| CN101791591A (en) * | 2010-01-05 | 2010-08-04 | 湖北富邦化工科技有限公司 | Phosphorite low-temperature foam flotation collector and preparation method thereof |
| CN101797536A (en) * | 2010-01-06 | 2010-08-11 | 云南省化工研究院 | Collophanite flotation collector and method for preparing same |
| CN102205278A (en) * | 2010-12-16 | 2011-10-05 | 云南磷化集团有限公司 | Collophanite flotation collecting agent prepared from rubber seed oil and method for preparing same |
| CN102513221A (en) * | 2012-01-10 | 2012-06-27 | 贵州大学 | Carbonate phosphorite reverse flotation combined collecting agent and preparation method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103721855A (en) * | 2013-12-31 | 2014-04-16 | 云南磷化集团有限公司 | Collecting agent capable of efficiently removing carbonate minerals in collophane |
| CN103721855B (en) * | 2013-12-31 | 2016-03-16 | 云南磷化集团有限公司 | The collecting agent of carbonate mineral in a kind of efficient removal collophane |
| CN105435969A (en) * | 2015-12-09 | 2016-03-30 | 湖北富邦科技股份有限公司 | Collecting agent improving filtering effect for phosphorite floatation and preparing method of collecting agent |
| CN105435969B (en) * | 2015-12-09 | 2019-11-12 | 湖北富邦科技股份有限公司 | A kind of collecting agent and preparation method thereof promoting phosphate rock floating filter effect |
| CN106179765A (en) * | 2016-07-27 | 2016-12-07 | 湖北富邦科技股份有限公司 | The high phosphate reverse flotation collecting agent of magnesium rate and preparation method drop in a kind of phosphorus that carries |
| CN106111347A (en) * | 2016-08-08 | 2016-11-16 | 湖北富邦科技股份有限公司 | A kind of except the rock phosphate in powder collecting agent in reverse floatation of calcite |
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Application publication date: 20130313 |