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A kind of siliceous colloidal phosphate positive flotation collector and preparation method thereof

A collector and collophosite technology, applied in flotation, solid separation, etc., can solve the problems of high dosage, low flotation efficiency, poor selectivity, etc., to achieve increased molecular area, low beneficiation cost, and increased solubility Effect

Active Publication Date: 2021-07-23
YUNNAN PHOSPHATE CHEM GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a siliceous colloidal phosphate rock positive flotation collector and its preparation method to solve the problems of high dosage, low flotation efficiency and poor selectivity of existing oleic acid collectors at room temperature

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Mix 60 kilograms of triethanolamine sodium oleate, 10 kilograms of sodium dodecylbenzenesulfonate, and 10 kilograms of mixed fatty alcohols of isooctanol and n-octanol (made at a ratio of 1:1), stir and mix evenly at room temperature, A siliceous colloidal phosphate positive flotation collector can be obtained. Add 7920 kg of water to dilute the mixture to a concentration of 1%, and apply it to raw ore P 2 o 5 Content 18.1%, SiO 2 The flotation of collophanite with a content of 35.6%. Under normal temperature conditions, add 700 g / t raw ore collector to carry out a roughing operation of positive flotation, and obtain P in the concentrate within 3 minutes of flotation time. 2 o 5 Content 23.83%, SiO 2 The content is 21.28%, the yield is 67%, and the recovery rate is 85.96%.

[0020] Under the same conditions, oleic acid collectors obtained P in the concentrate 2 o 5 Content 23.63%, SiO 2 The content is 21.56%, the yield is 60%, and the recovery rate is 76.83%. ...

Embodiment 2

[0022] Mix 75 kg of triethanolamine sodium oleate, 15 kg of sodium laureth sulfate, and 20 kg of mixed fatty alcohol of isooctyl alcohol and n-octanol (1:1 ratio), stir and mix evenly at room temperature. A siliceous colloidal phosphate positive flotation collector is obtained. Add 3550 kg of water to dilute the mixture to a concentration of 3%, and apply it to raw ore P 2 o 5 Content 18.1%, SiO 2 The flotation of collophanite with a content of 35.6%. Under normal temperature conditions, add 600 g / t raw ore collector to carry out a roughing operation of positive flotation, and obtain P in the concentrate within 3 minutes of flotation time. 2 o 5 Content 24.31%, SiO 2 The content is 20.85%, the yield is 64.3%, and the recovery rate is 85.94%.

[0023] Under the same conditions, oleic acid collectors obtained P in the concentrate 2 o 5 Content 23.67%, SiO 2 The content is 20.21%, the yield is 58.21%, and the recovery rate is 76.12%.

Embodiment 3

[0025] Stir and mix 90 kg of triethanolamine sodium oleate, 20 kg of sodium cetyl sulfonate, 30 kg of mixed fatty alcohol of isooctyl alcohol and n-octanol (1:1 ratio), and 4650 kg of water at room temperature Evenly, a glenite positive flotation collector that is liquid at room temperature can be obtained. Stir and mix evenly at room temperature to obtain a silica colloidal positive flotation collector. Add 2660 kg of water to dilute the mixture to a concentration of 5%, and apply it to raw ore P 2 o 5 Content 18.1%, SiO 2 The flotation of collophanite with a content of 35.6%. Under normal temperature conditions, add 500 g / t of raw ore collector to carry out a roughing operation of positive flotation, and obtain P in the concentrate within 3 minutes of flotation time. 2 o 5 Content 25.5%, SiO 2 The content is 18.3%, the yield is 62.1%, and the recovery rate is 85.94%.

[0026] Under the same conditions, oleic acid collectors obtained P in the concentrate 2 o 5 Conten...

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Abstract

The invention discloses a positive flotation collector for siliceous collophosphate rock and a preparation method thereof, and relates to the technical field of collophosphate rock flotation. 6-9 parts of sodium triethanolamine oleate, 1-2 parts of anionic surfactant, and 1-3 parts of fatty alcohol are mixed at normal temperature, and the mixture is uniformly stirred and mixed at normal temperature to prepare a collector for positive flotation of silicocolloid phosphate rock. The mixed fatty alcohol is prepared by isooctanol and n-octanol in a ratio of 1:1. The anionic surfactant is one or more of sodium lauryl sulfate, sodium laureth sulfate, and sodium cetyl sulfonate. The collector has good water solubility and dispersibility under normal temperature conditions, can effectively flotation rate, shorten the flotation space, is economical and environmentally friendly, and is suitable for popularization and use. The collector is applied to the positive flotation of low-grade and high-silica phosphate rock. After dilution, 0.5-0.7kg / t collector is added at room temperature (15-25°C), and through a positive flotation roughing operation, it can be mixed with oil. Compared with acid collectors, the flotation yield and recovery rate were increased by about 6% and 9%, respectively, within 3 minutes of flotation time.

Description

technical field [0001] The invention relates to the technical field of collophosite flotation, in particular to a siliceous collophosphate positive flotation collector and a preparation method thereof. Background technique [0002] China is a country with a large amount of phosphorus resources, but phosphate rock resources are abundant but not rich. Most of them are low-grade phosphate rocks, 80% of which are silicon and silicate minerals. The main impurities are characterized by high silicon and high semi-oxidation. The flotation process is forward flotation or forward and reverse flotation, that is, direct floating phosphorus desiliconization. The key factor is the use of flotation reagents, and the most important of the flotation reagents is the collector. [0003] At present, the collectors selected for floating are mainly fatty acid collectors based on oleic acid. The problem of this type of collector is that the dosage is high at room temperature, the flotation effic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/012B03D101/02B03D103/06
CPCB03D1/012B03D2201/02B03D2203/06
Inventor 杨稳权张华赵凤婷魏立军欧志兵庞建涛何海涛张慧梅连平黄永丽
Owner YUNNAN PHOSPHATE CHEM GROUP CORP
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