Method for preparing oil stain cleaning agent by recovering bottom glycerin residue
A technology of oil stain cleaning agent and glycerin, which is applied in detergent compositions, chemical instruments and methods, non-surface-active detergent compositions, etc., can solve problems such as waste, achieve low equipment input cost, increase added value, and high efficiency Effect
Active Publication Date: 2018-09-25
鲍杰汉
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Therefore, how to fully recycle the polyglycerol fatty acid esters in these bottom glycerol residues to turn waste into treasure, so as not to cause waste of energy
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[0024] In order to facilitate the understanding of the present invention, the following will describe the present invention more fully. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.
[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention.
[0026] The invention provides a method for recovering and preparing an oil stain cleaning agent from bottom glycerin residue, comprising the following steps:
[0027] Step 1, pretreatment; heating the ...
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The invention relates to a method for preparing an oil stain cleaning agent by means of recycling of bottom glycerin dregs. The method comprises the following steps that 1, the bottom glycerin dregs are heated to be a melting state, non-melt impurities are removed through a first-stage filter, isopropyl alcohol and dimethylformamide are sequentially added into the filtered bottom glycerin dregs under the constant stirring action, all the substances are fully mixed, a decolorizing agent is added for decolorizing treatment, all the substances pass through a second-stage filter, and a primary oil stain cleaning agent product is obtained; 2, sampling and detecting are conducted, the PH value of the product is adjusted to range from 7.0 to 8.0 by adding sodium hydroxide, and the final product is obtained. According to the method for preparing the oil stain cleaning agent by means of recycling of the bottom glycerin dregs, the process steps are simple, the equipment input cost is low, operation is easy, the bottom glycerin dregs are effectively recycled and utilized, the environmental protection concept is met, and the obtained oil stain cleaning agent has the advantages of being high in cleaning speed and high in efficiency when used for cleaning heavy oil type substances and is free of corrosion to the material surfaces.
Description
technical field [0001] The invention relates to the field of fine chemicals, in particular to a method for preparing an oil stain cleaning agent by recovering bottom glycerin residue. Background technique [0002] During the production of glycerol distillation and molecular distillation ester emulsifiers, a large amount of glycerin residues are often produced, especially the bottom glycerol residues obtained under repeated high-temperature distillation process conditions; these bottom glycerol residues are residual products after the reaction and extraction of glycerol residues. It is a pitch-like semi-solid with complex components, most of which are polyglycerol esters with different degrees of polymerization. Polyglycerol ester is a non-toxic, strong detergency, polyhydroxyl ester non-ionic surfactant, which is harmless to human skin, hair and other parts. It is suitable for cleaning food, processing food materials, and producing food. Clean equipment, tableware and other...
Claims
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IPC IPC(8): C11D7/60C11D7/26C11D7/06C11D7/32
CPCC11D7/06C11D7/261C11D7/3263
Inventor 鲍杰汉
Owner 鲍杰汉