Mineral floatation foaming agent and preparation method thereof

A technology for mineral flotation and foaming agent, which is used in flotation, sulfonate preparation, solid separation, etc. It can solve the problems of harsh reaction conditions and unsatisfactory foaming performance, and achieve mild synthesis conditions, good air affinity and Hydrophilic performance, excellent performance

Inactive Publication Date: 2011-07-13
KUNMING FURUITE TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method needs to be carried out under high temperature and high pressure environment, the reaction conditions

Method used

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  • Mineral floatation foaming agent and preparation method thereof
  • Mineral floatation foaming agent and preparation method thereof

Examples

Experimental program
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Effect test

Example Embodiment

[0021] Example 1

[0022] Take 10g of isopropanol and 30g of epichlorohydrin and put it in a 150ml round-bottomed flask, stir and mix, add 0.10g of triethylbenzylammonium chloride and 12ml of sodium hydroxide solution with a mass concentration of 40% in turn, heat to At 60-65°C, stirring was continued for 3 hours, and the reaction product was cooled to room temperature after the reaction was completed. Then, the reaction product is placed in a rotary evaporator to distill out the unreacted epichlorohydrin under reduced pressure to obtain the product chlorinated aliphatic alcohol ether. Take 30 g of chloro-fatty alcohol ether into a 100 ml round-bottomed flask, stir and slowly add 5 g of 1.0 mol / L sodium hydroxide solution, and stir and react at room temperature for 50 min to obtain aliphatic alcohol epoxy ether. A saturated solution was prepared by mixing sodium sulfite and sodium bisulfite in a mass ratio of 5:1. Take 10 g of aliphatic alcohol epoxy ether, 20 g of saturated...

Example Embodiment

[0023] Example 2

[0024] Take 12g of isobutanol and 30g of epichlorohydrin and put it in a 150ml round-bottomed flask, stir and mix, add 0.10g of tetrabutylammonium bromide and 15ml of sodium hydroxide solution with a mass concentration of 50% in turn, heat to 70~ At 75°C, stirring was continued for 4 hours, and the reaction product was cooled to room temperature after the reaction was completed. Then, the reaction product is placed in a rotary evaporator to distill out the unreacted epichlorohydrin under reduced pressure to obtain the product chlorinated aliphatic alcohol ether. Take 30 g of chloro-fatty alcohol ether into a 100 ml round-bottomed flask, stir and slowly add 6 g of 0.8 mol / L sodium hydroxide solution, and stir and react at room temperature for 60 min to obtain aliphatic alcohol epoxy ether. A saturated solution was prepared by mixing sodium sulfite and sodium bisulfite in a mass ratio of 5:1. Take 10 g of aliphatic alcohol epoxy ether, 25 g of saturated sodi...

Example Embodiment

[0025] Example 3

[0026] Take 10g of tert-butanol and 25g of epichlorohydrin and put them in a 150ml round-bottomed flask, stir and mix, add 0.15g of tetrabutylammonium bromide and 15ml of sodium hydroxide solution with a mass concentration of 60% in turn, heat to 80~ At 85°C, stirring was continued for 5 hours, and the reaction product was cooled to room temperature after the reaction was completed. Then the reaction product is placed in a rotary evaporator to distill out the unreacted epichlorohydrin under reduced pressure to obtain the product chlorinated aliphatic alcohol ether. Take 25g of chlorofatty alcohol ether into a 100ml round-bottomed flask, stir and slowly add 2.5g of 0.5mol / L sodium hydroxide solution, stir and react at room temperature for 30min to obtain aliphatic alcohol epoxy ether. Sodium sulfite and sodium bisulfite were mixed in a mass ratio of 5:1 to make a saturated solution, and 12 g of the above-mentioned aliphatic alcohol epoxy ether and 36 g of th...

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Abstract

The invention discloses a mineral floatation foaming agent and a preparation method thereof. The mineral flotation foaming agent is prepared from the raw materials of fatty alcohol with a branch chain and epoxy chloropropane by epoxidation and sulfonation. One end of the foaming agent has polar groups of -OH and -SO3H, and the other end of the foaming agent has fatty alcohol sulfonate with straight chain alkyls or branch chain alkyls of different carbon atoms. The raw materials of the mineral flotation foaming agent are widely available and cheap, the synthesis process is simple, the synthesis conditions are mild, the reaction is easy to control, and the industrialization is easy to realize. The foaming agent has good aerophily and hydrophily as well as excellent foaming performance. The degradation speed of the foaming agent is higher than that of the terpineol with an annular structure, thereby being favorable for environmental protection. Compared with the existing product, the mineral recovery rate is increased by 0.5-2%, and the using cost is lowered by 10-20%.

Description

technical field [0001] The invention belongs to the technical field of ore flotation, and in particular relates to a foaming agent for mineral flotation. At the same time, the invention also relates to a preparation method of the foaming agent. Background technique [0002] Frothing agent is one of the main reagents for ore flotation. The foaming agent currently used in mines in my country is terpineol, and companies generally do not have more varieties to choose from. Therefore, when considering improving or improving the sorting index from the perspective of chemicals, people often focus on collectors, regulators, etc. Aspects of work, while ignoring the active role of the foaming agent. Long-term studies have shown that the performance of the foaming agent has a significant impact on the flotation index. Foaming agents are generally heteropolar surface active substances. The molecular structure contains polar groups, such as hydroxyl-OH, and the other end of the molecu...

Claims

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Application Information

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IPC IPC(8): B03D1/012C07C309/10C07C303/32B03D101/04B03D103/02
Inventor 郑伟郑天宇杨亚玲刘谋盛
Owner KUNMING FURUITE TRADE
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