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Flotation agent fatty acid prepared from recovered animal and vegetable oil and swill oil and preparation method thereof

A technology for animal and vegetable oils and fatty acids, applied in the field of oleochemical industry, can solve the problem of high cost, achieve the effects of low production cost, simple equipment and avoid oil competition

Active Publication Date: 2015-09-30
王云
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, my country still needs to import a large amount of fatty acid products every year, and the main raw materials for domestic production of fatty acids are imported palm oil and other industrial oils and fats (such as beef tallow, etc.), and the cost is relatively high [Ye Jianquan. The application and market analysis of fatty acids. Market Perspective, 2-7]

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1) Send the recovered animal and vegetable oil and swill oil to the drying room to turn into oil;

[0025] 2) Send the recovered animal and vegetable oils and swill oil that have been melted into the hydrolysis reactor, and hydrolyze the oils and fats under the conditions of 85°C and 1 kg of pressure, and add water and emulsifier dodecyl sulfonate in proportion to the reactor Sodium acid, sulfuric acid, the ratio of oil to water is 1:0.8, the emulsifier is 2% of the oil weight, and the sulfuric acid is 1% of the oil weight. Under strong stirring, the oil is heated to 80°C, stirred at 80°C for 5 hours, then settled and drained , to obtain crude fatty acid;

[0026] 3) After the crude fatty acid is hydrolyzed, the oil is pumped into the decolorization kettle for decolorization, dehydration and filtration under vacuum;

[0027] 4) Preheat the fatty acid after step 3) at 85°C for 30 minutes, turn on the vacuum distillation tower to make the ultimate vacuum of the steam jet...

Embodiment 2

[0032] 1) Send the recovered animal and vegetable oil and swill oil to the drying room to turn into oil;

[0033]2) Send the recovered animal and vegetable oil and swill oil that have been melted into the hydrolysis reactor, and hydrolyze the oil under the conditions of 85 ° C and 1.5 kg pressure, and add water and emulsifier dodecyl sulfonate in proportion to the reactor Sodium acid, sulfuric acid, the ratio of oil to water is 1:1, the emulsifier is 3% of the oil weight, and the sulfuric acid is 2% of the oil weight. Under strong stirring, the oil is heated to 80°C, stirred at 80°C for 6 hours, then settled and drained , to obtain crude fatty acid;

[0034] 3) After the crude fatty acid is hydrolyzed, the oil is pumped into the decolorization kettle for decolorization, dehydration and filtration under vacuum;

[0035] 4) Preheat the fatty acid after step 3) at 90°C for 25 minutes, turn on the vacuum distillation tower, make the ultimate vacuum of the steam jet pump reach 668...

Embodiment 3

[0040] 1) Send the recovered animal and vegetable oil and swill oil to the drying room to turn into oil;

[0041] 2) Send the recovered animal and vegetable oil and swill oil that have been melted into the hydrolysis reactor, and hydrolyze the oil under the conditions of 90°C and 1 kg of pressure, and add water and emulsifier dodecyl sulfonate in proportion to the reactor Sodium acid, sulfuric acid, the ratio of oil to water is 1:1.2, the emulsifier is 5% of the oil weight, and the sulfuric acid is 3% of the oil weight. Under strong stirring, the oil is heated to 90°C, stirred at 90°C for 5 hours, then settled and drained , to obtain crude fatty acid;

[0042] 3) After the crude fatty acid is hydrolyzed, the oil is pumped into the decolorization kettle for decolorization, dehydration and filtration under vacuum;

[0043] 4) Preheat the fatty acid after step 3) at 85°C for 25 minutes, turn on the vacuum distillation tower, make the ultimate vacuum of the steam jet pump reach 6...

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Abstract

The invention relates to a method for producing a phosphorite flotation agent fatty acid from recycled animal / vegetable oil and swill oil, which comprises the following steps: 1) sending recycled animal / vegetable oil and swill oil into a drying chamber to be thickened; 2) sending the thickened recycled animal / vegetable oil and swill oil into a hydrolysis reaction kettle, hydrolyzing the oil at 80-90 DEG C under the pressure of 1-1.5kg, adding water, emulsifier and sulfuric acid and water in a ratio of 1:(0.8-1):1.2 into the reaction kettle (the emulsifier accounts for 2-5 wt% of oil, and thee sulfuric acid accounts for 1-3 wt% of the sulfuric acid), heating to 80-85 DEG C the oil while vigorously stirring, stirring at the constant temperature of 80-85 DEG C for 5-6 hours, depositing, and discharging water to obtain crude fatty acid; decolorizing, dehydrating and filtering; and carrying out negative pressure distillation in high vacuum to obtain the high-quality fatty acid mixture. The invention has the advantages of simple technique, low production cost, abundant resources, high cost performance, high capture rate and environment protection.

Description

technical field [0001] The invention provides a phosphate rock flotation agent fatty acid prepared by recovering animal and vegetable oil and swill oil and a preparation method thereof, which belong to the field of oleochemical industry. Background technique [0002] Phosphate rock is an important strategic resource in my country. It is not only an important chemical mineral raw material for the production of phosphate fertilizers, yellow phosphorus, phosphoric acid and other phosphorus products, but also an important material for ensuring food safety. It is also the material basis for fine phosphorus chemicals. It has an important position and role in national economic and social development [Li Chengxiu, Wen Shuming. The current situation and progress of phosphate ore beneficiation in my country. Comprehensive Utilization of Mineral Resources, 2010 (2): 22-25]. The output of phosphate rock in yunnan has exceeded 15 million tons for several consecutive years, ranking first i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11C1/04C11C1/10
Inventor 王云赵金平张映伟
Owner 王云
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