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Alkaline ceramic grease deacidification agent preparation method

The technology of deacidification agent and ceramics, which is applied in the field of oil deacidification agent, can solve the problems of high energy consumption, complex process and environmental pollution, and achieve the effect of short processing time, simple process and no environmental pollution.

Active Publication Date: 2017-04-26
金太阳粮油股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention: Aiming at the problems of high energy consumption, complex process and environmental pollution of the traditional deacidification method, the present invention provides a preparation method of an alkaline ceramic oil deacidification agent. The present invention uses diatomite as the backbone Diatomite ceramics are prepared by hanging slurry on the surface of polyurethane, and then calcined to form diatomite ceramics, and then use its three-dimensional network structure to modify, grow nano-silicon particles uniformly on the surface, and prepare a multi-level pore structure. Diatomaceous earth-based porous ceramics, and finally use it as a carrier to load lye to make an alkaline ceramic grease deacidifier

Method used

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Examples

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Effect test

example 1

[0017] Cut a piece of soft polyurethane foam of 1cm×1cm×1cm, soak it in 100mL sodium hydroxide solution with a mass fraction of 10%, soak it in a constant temperature water bath at 60°C for 2 hours, take out the soft polyurethane foam, and wash it twice with deionized water After that, soak it in a solution of 1% sodium carboxymethylcellulose by mass fraction, soak it in a constant temperature water bath at 60°C for 1 hour, then take out the soft polyurethane foam and dry it naturally to obtain a surface pretreated soft polyurethane foam; Take 1.2g of sodium chloride, 2g of sodium silicate, add 60mL of deionized water, stir at 300r / min for 10min, then add 25g of diatomaceous earth, 7mL of 10% diethylene glycol diacrylate solution , stirred at 800r / min for 10h to obtain a diatomite slurry; after immersing the above-mentioned surface pretreated soft polyurethane foam in the above-mentioned diatomite slurry for 3min, take out the polyurethane foam and press off the excess slurry w...

example 2

[0020]Cut a piece of soft polyurethane foam of 1cm×1cm×1cm, soak it in 120mL sodium hydroxide solution with a mass fraction of 10%, soak it in a constant temperature water bath at 62°C for 2.5h, take out the soft polyurethane foam, and wash it with deionized water for 2 hours After three times, it was soaked in 1% sodium carboxymethyl cellulose solution with a mass fraction of 1.5 h in a constant temperature water bath at 62°C, and then the soft polyurethane foam was taken out and air-dried naturally to obtain a surface pretreated soft polyurethane foam. ; Weigh 1.3g sodium chloride, 3g sodium silicate, add 62mL deionized water, stir at 350r / min for 12min, then add 28g diatomaceous earth, 7.5mL mass fraction is 10% diethylene glycol diphthalate Acrylic ester solution, stirred at 900r / min for 11h to obtain diatomite slurry; after immersing the above-mentioned surface pretreated flexible polyurethane foam in the above-mentioned diatomite slurry for 4min, take out the polyurethane...

example 3

[0023] Cut a piece of soft polyurethane foam of 1cm×1cm×1cm, soak it in 150mL of 10% sodium hydroxide solution, soak it in a constant temperature water bath at 65°C for 3 hours, take out the soft polyurethane foam, and wash it three times with deionized water After that, soak it in a solution of sodium carboxymethylcellulose with a mass fraction of 1%, and soak it in a constant temperature water bath at 65°C for 2 hours, then take out the soft polyurethane foam and dry it naturally to obtain a surface pretreated soft polyurethane foam; Take 1.5g sodium chloride, 5g sodium silicate, add 65mL deionized water, stir at 400r / min for 15min, then add 30g diatomaceous earth, 8mL mass fraction is 10% diethylene glycol diacrylate solution , stirred at 1000r / min for 12h to obtain a diatomite slurry; after immersing the above-mentioned surface pretreated soft polyurethane foam in the above-mentioned diatomite slurry for 5min, take out the polyurethane foam and press off the excess slurry w...

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Abstract

The invention relates to an alkaline ceramic grease deacidification agent preparation method and belongs to the technical field of grease deacidification agents. The preparation method includes taking diatomite as aggregate, coating the polyurethane surface with diatomite slurry, and roasting to form so as to obtain diatomite ceramics; modifying through a three-dimensional netted structure, and enabling nanometer silicon particles to grow on the surface of the three-dimensional netted structure evenly so as to obtain diatomite-based porous ceramics of a multi-stage porous structure; using the diatomite-based porous ceramics as a supporter to support alkaline liquor so as to obtain an alkaline ceramic grease deacidification agent. The alkaline ceramic grease deacidification agent is easy to recover and free of environmental pollution, is capable of increasing the effective contact area between alkali and free fatty acids by taking the advantages of intrinsic porosity, large specific surface area and high adsorption capacity, and enables a reaction rate to be increased under the combined action of physical adsorption and chemical adsorption, so that the free fatty acids are removed effectively.

Description

technical field [0001] The invention relates to a preparation method of an alkaline ceramic grease deacidifier, belonging to the technical field of grease deacidifiers. Background technique [0002] Deacidification is an important part of oil refining. At present, deacidification methods include molecular distillation deacidification, alkali refining deacidification, physical refining deacidification, organic solvent extraction deacidification and supercritical fluid extraction deacidification, etc. At present, most oil factories use alkali Refining and deacidification means using lye to neutralize the free fatty acids in the oil, and the resulting fatty acid salts are easily soluble in water but insoluble in oil, and finally the free fatty acids are removed to achieve the purpose of deacidification. This method has a good deacidification effect, but it needs multiple washings to remove fatty acid salts, and then vacuum removes water, which has disadvantages such as complex ...

Claims

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Application Information

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IPC IPC(8): C10G19/073
CPCC10G19/073
Inventor 闫博文张潇
Owner 金太阳粮油股份有限公司
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