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Method of producing powdered soap by using vegetable oil alkali refining nigre containing phospholipid

A vegetable oil and alkali refining technology, applied in the direction of alkali soap/ammonium soap composition, etc., can solve the problems of wasting raw materials, polluting the environment, insufficient utilization of vegetable oil alkali refining soap stock, etc., to avoid waste of raw materials and easy to degrade. Effect

Active Publication Date: 2013-10-02
SANHE HOPEFULL BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above technical solutions are optimized for sodium fatty acid treatment. Phospholipids in soapstock are treated with strong acid and strong alkali, and phospholipids are difficult to hydrolyze even under strong acid and strong alkali, so a large amount of waste residue rich in phospholipids will be produced. In this way, the vegetable oil alkali soapstock has not been fully utilized, which not only wastes raw materials, but also pollutes the environment, and the utilization of phospholipids in the vegetable oil alkali soapstock has not yet seen relevant patented technologies and research reports.

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  • Method of producing powdered soap by using vegetable oil alkali refining nigre containing phospholipid

Examples

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Embodiment 1

[0029] The present embodiment provides a kind of method that utilizes phospholipid-containing vegetable oil alkali to refine soapstock to produce soap powder, and its concrete process is as follows figure 1 shown. The method includes the following steps:

[0030] Add the vegetable oil alkali refining soapstock into the stirring reaction tank, add concentrated hydrochloric acid with a concentration of 36%, adjust the pH of the soapstock to 1, stir and acidify the soapstock at 50°C and normal pressure for 30 minutes; then let it stand for 4 hours and separate the layers , to separate the water phase, emulsified phase and oil phase respectively;

[0031] Put the oil phase into the reaction kettle, then add water accounting for 10% of the weight of the oil phase, react at 5MPa and 263°C for 10 minutes, crack the triglycerides in the oil phase to generate fatty acids, separate the fatty acids, and then heat them at 200°C , 2MPa, 0.1% nickel catalyst conditions, feed hydrogen to r...

Embodiment 2

[0039] The present embodiment provides a kind of method that utilizes phospholipid-containing vegetable oil alkali to refine soapstock to produce soap powder, and its concrete process is as follows figure 1 shown. The method includes the following steps:

[0040] Add the vegetable oil alkali refining soapstock into the stirring reaction tank, add concentrated hydrochloric acid with a concentration of 15wt%, adjust the pH of the soapstock to 3, stir and acidify at 70°C and normal pressure for 60 minutes, and then let it stand for 8 hours after stratification , to separate the water phase, emulsified phase and oil phase respectively;

[0041] Put the oil phase into the reaction kettle, then add water accounting for 10% of the mass of the oil phase, react at 1MPa and 180°C for 60 minutes, crack the triglycerides in the oil phase to generate fatty acids, separate the fatty acids, and then .

[0042] The separated aqueous phase can be prepared to obtain sodium chloride after neu...

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Abstract

The invention relates to a method of producing powdered soap by using vegetable oil alkali refining nigre containing phospholipid. The method comprises a step of mixing and stirring the vegetable oil alkali refining nigre with hydrochloric acid for acidification, and separating a water phase, an emulsification phase and an oil phase after the mixture is layered; a step of mixing the emulsification phase with an organic solvent and extracting to obtain a phospholipid mixture; a step of adding lactic acid or acetic acid into the phospholipid mixture obtained after extraction that is performed to remove oil, adding hydrogen peroxide, and mixing, stirring and performing a hydroxylation reaction at 40-70 DEG C; a step of adding excess sodium hydroxide into the product of the hydroxylation reaction after the hydroxylation reaction is finished, and mixing, stirring and performing a saponification reaction at 50 DEG C; and a step of mixing the product of the saponification reaction with corn starch, and performing spray drying to obtain the powdered soap. According to the method provided by the invention, nigre produced by vegetable oil alkali refining can be made full use of, phospholipid contained in the nigre can be effectively recycled, and therefore problems of material waste and environmental pollution, which are caused by inadequate utilization of the vegetable oil alkali refining nigre, are prevented.

Description

technical field [0001] The invention relates to a method for producing soap powder by using phospholipid-containing vegetable oil alkali to refine soapstock, and belongs to the technical field of vegetable oil production. Background technique [0002] Crude oil is obtained after the oil is pressed or extracted. The crude oil contains phospholipids, fatty acids and other components, which need to be refined to remove them. Most of the hydrated phospholipids can be removed by hydration, and the unremoved hydrated phospholipids, non-hydratable phospholipids, and fatty acids are usually refined by adding sodium hydroxide to obtain soapstock and alkali refined oil. When soybean oil, rapeseed oil, peanut oil and other oils containing phospholipids are deacidified by alkali refining, soapstock containing phospholipids will be produced. These vegetable oil alkali refining soapstocks account for about 4-5% of refined oil weight, and its main component is sodium soap (20-35%), glycer...

Claims

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Application Information

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IPC IPC(8): C11D9/02
Inventor 张昭炜
Owner SANHE HOPEFULL BIOTECH
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