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Collecting agent and preparation method and application thereof

A collector and vegetable oil foot technology, applied in the field of waste recycling, can solve the problems of unfavorable chemical agent and mineral surface sufficient interaction, unsatisfactory chemical dispersion degree, low freezing point, etc. reduced effect

Active Publication Date: 2018-11-02
INST OF RESOURCES UTILIZATION & RARE EARTH DEV GUANGDONG ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the collector prepared by this method is low in cost, good in selectivity, and strong in collecting capacity, the collector is insoluble in water and has a low freezing point (13.2°C), and the agent is dispersed in the slurry solution below 13.2°C. The degree is not ideal, which is not conducive to the sufficient interaction between the chemical agent and the mineral surface under the condition of low temperature slurry solution

Method used

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  • Collecting agent and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Take 10 parts of vegetable oil feet containing 20% ​​palmitic acid ester, 25% stearic acid ester, 10% oleic acid ester, 15% linoleic acid ester and 20% moisture, add 20 parts of 35% NaOH solution, and stir for 30 minutes , washed twice with water; let stand for 10 hours, take the upper paste organic phase; add 3 parts of 0.1% sodium lauryl sulfate solution to 50 parts of the paste organic phase, stir for 30 minutes, and obtain the collector.

[0016] The collector prepared in this example is a deep yellow to brownish red liquid, soluble in water with a temperature ≥ 5°C, and the aqueous solution is a transparent light yellow solution with a water solubility of 15%. Its infrared spectrum is as follows figure 1 As shown, absorption peaks (cm-1): 3426.9, 3012.3, 2923.6, 2854.1, 2127.1, 1645, 1558.2, 1461.8, 1444.4, 1423.2, 1232.3, 1105, 1031.7, 919.9, 688.5.

Embodiment 2

[0018] Take 10 parts of vegetable oil feet containing 10% palmitic acid ester, 30% stearic acid ester, 20% oleic acid ester, 25% linoleic acid ester and 10% moisture, add 30 parts of 30% NaOH solution, and stir for 30 minutes , washed once with water; let it stand for 20 hours, take the upper paste organic phase; add 1 part of 0.1% sodium dodecylbenzenesulfonate solution to 50 parts of the paste organic phase, stir for 30 minutes, and obtain the collector.

[0019] The scheelite collector prepared in this example is a deep yellow to brownish red liquid, soluble in water at a temperature ≥ 5°C, and the aqueous solution is a transparent light yellow solution with a water solubility of 10%.

Embodiment 3

[0021] Take 10 parts of vegetable oil mainly containing 30% palmitic acid ester, 10% stearic acid ester, 15% oleic acid ester, 10% linoleic acid ester and 30% water content, add 15 parts of 40% NaOH solution, and stir for 30 minutes , washed twice with water; let it stand for 15 hours, and took the upper paste organic phase; added 5 parts of 0.1% sodium lauryl sulfate to 50 parts of the paste organic phase, and stirred for 30 minutes to obtain a collector.

[0022] The scheelite collector prepared in this example is a deep yellow to brownish red liquid, soluble in water at a temperature ≥ 5°C, and the aqueous solution is a transparent light yellow solution with a water solubility of 18%.

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Abstract

The invention discloses a collecting agent and a preparation method and application thereof. The collecting agent is prepared by plant oil foots; and the plant oil foots mainly contain 10-30% of palmitic acid ester, 10-30% of octadecanoic acid ester, 10-20% of oleate, 10-25% of linoleic acid ester, and 10-30% of water. The preparation method comprises the following steps: 10 parts of the plant oilfoots are taken to add in 15-30 parts of 30-40% of NaOH solution for stirring by 30 minutes, are washed by water by 1-2 times, and are stood by 10-20 hours; upper-layer paste organic phases are taken; and 50 parts of paste organic phases are added in 1-5 parts of 0.1% of lauryl sodium sulfate or 0.1% of sodium dodecyl benzene sulfonate solution for stirring by 30 minutes to obtain the collectingagent. The invention provides the collecting agent and the preparation method and application thereof; and the collecting agent is simple in process, easy to operate and high in practicability, can harmlessly use the plant oil foots , can effectively reduce the medicament cost, and is excellent in low-temperature water solubility and higher in collecting capacity.

Description

technical field [0001] The invention relates to the technical field of waste recycling, in particular to a collector prepared from vegetable oil residues and its preparation method and application. Background technique [0002] Scheelite collectors are mostly anion collectors, and the most commonly used anion collectors are fatty acid agents. Commonly used scheelite collectors are fatty acid agents such as oleic acid soap, oxidized paraffin soap, and tar soap. The selective collection effect is poor and the price of the agent is high. In order to improve the selective collection ability, scientific research workers It has been modified and compounded for a long time. At the same time, using low-cost raw materials to develop scheelite collectors is one of the current research directions for beneficiation agents. [0003] The vegetable oil foot involved in the present invention mainly contains palmitate 10-30%, stearate 10-30%, oleate 10-20%, linoleate 10-25% and water 10-30...

Claims

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Application Information

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IPC IPC(8): B03D1/008B03D101/02
CPCB03D1/008B03D2201/02
Inventor 周晓彤邓丽红关通付广钦
Owner INST OF RESOURCES UTILIZATION & RARE EARTH DEV GUANGDONG ACAD OF SCI
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