Combined reagent for medium and low temperature phosphate rock flotation and use method thereof

A combination of reagents and phosphate rock technology, applied in flotation, solid separation, etc., can solve problems such as poor low temperature resistance, achieve the effects of reducing production costs, improving flotation results, and improving flotation indicators

Inactive Publication Date: 2018-11-02
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the problem of poor low temperature resistance of the existing phosphate rock flotation collectors, the present invention provides a medium and low temperature phosphate rock flotation combination ag

Method used

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  • Combined reagent for medium and low temperature phosphate rock flotation and use method thereof

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Experimental program
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Effect test

Embodiment 1

[0015] The processing object of this embodiment is: a phosphate ore raw ore P in Yunnan 2 o 5 Grade 23.56%, the specific method is (such as figure 1 Shown): Grind the raw ore until the fineness is -0.074mm, accounting for 40%. t, the temperature of the flotation pulp is 5°C, after a rough separation, the P in the phosphorus concentrate is finally obtained 2 o 5 The grade is 29.86%, and the recovery rate is 72.38%.

[0016] Using the combined medicament of the present invention as a collector (the addition amount is 20g / t) to replace the collector oxidized paraffin soap, under the same flotation conditions, P 2 o 5 The grade is 32.65%, the recovery rate is 89.72%, and the concentrate grade and recovery rate have been greatly improved; the raw materials and mass percentages of the combined agent are: α-amino acid 10wt%, oxidized paraffin wax soap 60wt%, lauryl Sodium sulfonate 25wt%, kerosene 5wt%.

Embodiment 2

[0018] The processing object of this embodiment is: a phosphate ore raw ore P in Guizhou 2 o 5 The grade is 21.32%. The specific method is: grind the raw ore until the fineness is -0.074mm, accounting for 60%. -Amino acid 150g / t, flotation pulp temperature is 15°C, after a rough separation, the P in the phosphorus concentrate is finally obtained 2 o 5 The grade is 31.86%, and the recovery rate is 85.61%.

[0019] Using the combined medicament described in the present invention as a collector (the addition amount is 150g / t) to replace the collector α-amino acid, under the same flotation conditions, P 2 o 5 The grade is 34.85%, and the recovery rate is 91.26%. The raw materials and mass percentages of the combined agent are: α-amino acid 30wt%, oxidized paraffin soap 25wt%, sodium dodecylsulfonate 5wt%, kerosene 40wt%.

Embodiment 3

[0021] The processing object of this embodiment is: a raw ore P mainly composed of a certain collophosphine in Hubei 2 o 5 The grade is 25.52%. The specific method is: grind the raw ore until the fineness is -0.074mm, accounting for 80%. Dialkyl sodium sulfonate 300g / t, flotation pulp temperature is 25 ℃, after a rough separation, finally get the P in the phosphorus concentrate 2 o 5 The grade is 28.46%, and the recovery rate is 75.21%.

[0022] Using the combined medicament of the present invention as a collector (the addition amount is 300g / t) to replace the collector sodium dodecylsulfonate, under the same flotation conditions, P 2 o 5 The grade is 33.65%, the recovery rate is 85.96%, and a good flotation index has been obtained; the raw materials and mass percentages of the combined agent are: α-amino acid 50wt%, oxidized paraffin wax soap 20wt%, sodium dodecylsulfonate 20wt% %, kerosene 10wt%.

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Abstract

The invention discloses a combined reagent for medium and low temperature phosphate rock flotation and a use method thereof, and belongs to that field of mineral flotation reagents. The combined reagent comprises 10-50 wt% of alpha-amino acid, 20-60 wt% of oxidized paraffin soap, 5-40 wt% of sodium dodecyl sulfonate and 5-40 wt% of kerosene. The combined reagent is mixed according to a certain proportion, the collecting ability and low-temperature resistance of the phosphate rock are improved through the synergistic effect among the reagents, and the combined reagent has the advantages of lessreagent consumption and low price compared with a single phosphate rock flotation collector and is soluble at normal temperature, nontoxic, efficient and environment-friendly. In particular, the combined reagent has a good flotation effect on the refractory collophanite and plays an important role in improving the recovery and utilization of phosphate rock resources.

Description

technical field [0001] The invention relates to a combined reagent for medium and low temperature phosphate rock flotation and a method for using the same, belonging to the field of mineral flotation reagents. Background technique [0002] Phosphate rock is mainly used to manufacture phosphate fertilizers for agriculture, and some are used to produce yellow phosphorus, red phosphorus, phosphoric acid and phosphate compounds. my country's phosphate rock reserves are large and the distribution is relatively concentrated, but the ore is mainly medium and low-grade sedimentary phosphorite, with few rich ore resources and difficult mining and selection. As a non-renewable resource, phosphate rock has become one of the important strategic resources in my country, and it is especially necessary to rationally develop and utilize the existing domestic phosphate rock resources. Flotation is the most ideal and effective sorting method for refractory phosphate rock. With the deepening ...

Claims

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Application Information

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IPC IPC(8): B03D1/018B03D1/00B03D101/02B03D103/06
Inventor 罗斌曹沁波黄余
Owner KUNMING UNIV OF SCI & TECH
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