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Phosphorite flotation collecting agent

A collector and flotation technology, applied in flotation, solid separation, etc., can solve the problems of poor low-temperature flotation effect and low selectivity of collophosite, and achieve stable low-temperature conditions, small usage, and good selectivity Effect

Inactive Publication Date: 2017-09-15
嘉兴市南湖区翊轩塑料五金厂(普通合伙)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main technical problem to be solved by the present invention is to provide a phosphate rock flotation collector in view of the problems of low selectivity and poor low-temperature flotation effect of existing traditional collectors on low- and medium-grade collephinite

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0019] First, weigh 15g of malic acid and add it to a beaker containing 200mL of anhydrous methanol, move the beaker into a digital speed constant temperature stirrer, stir and dissolve at a temperature of 60°C and a rotation speed of 450r / min for 15 minutes to obtain a malic acid methanol solution ; Then measure 100mL of malic acid methanol solution into a three-necked flask with a thermometer and reflux device, place the flask in an oil bath, control the temperature at 130 ℃, then add 0.3g of phosphotungstic acid to the flask, and stir to react After 60 minutes, the temperature was lowered to 80°C, and 10 mL of triethylamine was added to the flask. After stirring the reaction for 90 minutes, 5 g of sulfamic acid was added to the flask, and the reaction was stirred for 50 minutes. After the reaction was completed, the product was collected and filtered. The filtrate was collected. Place it in a rotary evaporator, rotary evaporate and concentrate for 30 minutes to obtain a conce...

example 2

[0021] First, weigh 18g of malic acid and add it to a beaker containing 225mL of anhydrous methanol, move the beaker into a digital speed constant temperature stirrer, stir and dissolve at a temperature of 65℃ and a speed of 475r / min for 18 minutes to obtain a malic acid methanol solution ; Then measure 110mL of malic acid methanol solution into a three-necked flask with a thermometer and reflux device, place the flask in an oil bath, control the temperature at 135 ℃, and then add 0.4g phosphotungstic acid to the flask, and stir to react After 75 minutes, the temperature was lowered to 85°C, and 12 mL of triethanolamine was added to the flask. After stirring the reaction for 115 minutes, 6 g of sulfamic acid was added to the flask, and the reaction was stirred for 60 minutes. After the reaction was completed, the product was collected and filtered, the filtrate was collected, and the filtrate was placed. In the rotary evaporator, the concentrated liquid was obtained by rotary ev...

example 3

[0023] First, weigh 20g of malic acid and add it to a beaker containing 250mL of anhydrous methanol, move the beaker into a digital speed constant temperature stirrer, stir and dissolve at a temperature of 70°C and a speed of 500r / min for 20 minutes to obtain a malic acid methanol solution ; Then measure 120mL of malic acid methanol solution into a three-necked flask with a thermometer and a reflux device, place the flask in an oil bath, control the temperature at 140 ℃, then add 0.5g of phosphotungstic acid to the flask, and stir to react After 90 minutes, the temperature was lowered to 90°C, and 15 mL of organic amine was added to the flask. After stirring the reaction for 120 minutes, 8 g of sulfamic acid was added to the flask and the reaction was stirred for 70 minutes. After the reaction was completed, the product was collected and filtered, the filtrate was collected, and the filtrate was placed In the rotary evaporator, the concentrated liquid was obtained by rotary evap...

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Abstract

The invention discloses a phosphorite flotation collecting agent and belongs to the technical field of ore froth flotation collecting agents. The phosphorite flotation collecting agent comprises, by weight, 25-30 parts of amphoteric malic acid derivatives, 5-8 parts of a surface active agent, 1-3 parts of sorbitan monolaurate, 1-3 parts of emulsifier and 40-50 parts of water. The amphoteric malic acid derivatives are obtained in a manner that after malic acid and organic amine react, the product reacts with sulfamic acid and N,N-Dimethyl-N-dodecyl(2-hydroxy-3-chloropropyl)ammonium chloride. The prepared flotation collecting agent can be used for carrying out flotation on phosphate at the temperature ranging from 5 DEG C to 35 DEG C and is good in selectivity for middle-low grade phosphorite, high in collecting capacity and small in amount of usage, and meanwhile, flotation froth is good, non-stick and stable at the low-temperature condition.

Description

Technical field [0001] The invention discloses a collector for phosphate ore flotation, belonging to the technical field of collectors for ore foam flotation. Background technique [0002] Phosphate rock is the main chemical raw material with a wide range of uses. It is the main source of phosphorus for the manufacture of phosphate fertilizers, phosphates and phosphorus series additives. Phosphate ore has few rich ore and many medium and low grade ore. The vast majority of phosphate ores must be enriched by beneficiation to meet the requirements of phosphoric acid and high-concentration phosphate compound fertilizer production. Among the proven reserves, most of them are sedimentary phosphate rock (colloid phosphate rock), and most of them are low-grade ores. The mineral particles are fine, densely distributed, and many harmful impurities. The beneficiation is very difficult. The development and utilization of the mine has brought certain difficulties. [0003] Flotation is the m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/018B03D101/02B03D103/06
CPCB03D1/018B03D2201/02B03D2203/06
Inventor 管小梅宋玲
Owner 嘉兴市南湖区翊轩塑料五金厂(普通合伙)
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