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A method for extracting refined cane wax from filter mud

A technology of sugarcane wax and filter mud, which is applied in the direction of recovery/refining of fatty substances, fat production, etc., to achieve the effects of improving production efficiency, high purity, and high product purity

Active Publication Date: 2019-09-27
广西大海阳光药业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the existing problems of extracting and refining cane wax, and provides a method for extracting and refining cane wax from filter mud

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A method for extracting refined cane wax from filter mud, comprising the steps of extracting crude cane wax, removing ash and impurities, and purifying by column chromatography. The specific process is as follows:

[0022] (1) Extract crude cane wax: take 100kg of dried sugarcane filter mud (cane wax content accounts for 8% of the filter mud), grind it to 20 mesh, add a mixed solvent with a weight ratio of 5 times that of the filter mud, and heat at 80°C Reflux for 2 hours, filter while hot, discard the liquid phase, and recover the mixed solvent to obtain 7.79 kg of crude cane wax. The mixed solvent is composed of ethanol, ethyl acetate and water with a weight ratio of 3:3:2;

[0023] (2) Ash and impurity removal: Add ethanol with a weight ratio of 3 times and a mass concentration of 90% to the crude cane wax, heat to 50°C to dissolve the crude cane wax, and then add 0.08 times the weight ratio of the crude cane wax Oxalic acid, stirring at 500 rpm for 30 minutes, at t...

Embodiment 2

[0026] A method for extracting refined cane wax from filter mud, comprising the steps of extracting crude cane wax, removing ash and impurities, column chromatography purification, etc., the specific process is:

[0027] (1) Extract crude cane wax: Take 100kg of dried sugarcane filter mud (cane wax content accounts for 8% of the filter mud), grind it to 20 mesh, add a mixed solvent whose weight ratio is 7 times that of the filter mud, and heat at 85°C Reflux for 1.5h, filter while hot, discard the liquid phase, and reclaim the mixed solvent to obtain 7.64kg of crude cane wax. The mixed solvent is composed of ethanol, ethyl acetate and water with a weight ratio of 5:2:2;

[0028] (2) Ash and impurity removal: Add ethanol with a weight ratio of 4 times and a mass concentration of 95% to the crude cane wax, heat to 55°C to dissolve the crude cane wax, and then add 0.05 times the weight ratio of the crude cane wax Oxalic acid, stirring at 800rpm for 25min, at this time the wax lay...

Embodiment 3

[0031] A method for extracting refined cane wax from filter mud, comprising the steps of extracting crude cane wax, removing ash and impurities, degreasing and decolorizing, and the main process steps are:

[0032] (1) Extract crude cane wax: Take 100kg of dried sugarcane filter mud (cane wax content accounts for 8% of the filter mud), grind it to 40 mesh, add a mixed solvent whose weight ratio is 7 times that of the filter mud, and heat at 85°C Reflux for 1.5h, filter while hot, discard the liquid phase, reclaim the mixed solvent to obtain 7.84kg of crude cane wax, and the mixed solvent is composed of ethanol, ethyl acetate and water with a weight ratio of 3:3:1;

[0033] (2) Ash and impurity removal: Add ethanol with a weight ratio of 4 times and a mass concentration of 95% to the crude cane wax, heat to 60°C to dissolve the crude cane wax, and then add 0.10 times the weight ratio of the crude cane wax Oxalic acid, stirring at 1000rpm for 20min, at this time the wax layer wi...

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Abstract

The invention discloses a method for extracting refined cane wax from filter mud. The method includes the following steps that dried sugarcane filter mud is obtained, smashed and added into a mixed solvent, heating reflux is conducted, the mixture is filtered while the mixture is hot, a liquid phase is discarded, a mixed solvent is recycled, and crude cane wax is obtained, wherein the mixed solvent is prepared from ethyl alcohol, ethyl acetate and water; ethyl alcohol is added into the crude cane wax, the crude cane wax is heated to be dissolved, then oxalic acid is added, stirring is conducted, lower-layer liquid is discharged, washing and filtering are conducted, a liquid phase is removed, and dust-removed cane wax is obtained; the dust-removed cane wax passes a chromatographic column and is eluted, elution components are collected, the dust-removal cane wax is decolored and filtered, filter residues are removed, a filter solution is placed in a rotary evaporation instrument for concentration, an organic solvent is recycled and dried, and the refined cane wax is obtained. The extraction method has the advantages of being little in solvent use amount, low in cost, low in energy consumption, high in production efficiency, high in product purity, high in recycling rate and the like, and industrial production is easy to achieve.

Description

technical field [0001] The invention relates to the technical field of sugar refining industry, in particular to a method for extracting refined cane wax from filter mud. Background technique [0002] A large amount of filter mud will be produced in the process of sugar cane sugar production, and about 1.2 tons of filter mud will be discharged for every ton of sugar produced. With the development of the sugar industry, the output of filter mud is increasing. At present, the treatment methods of filter mud are generally landfill or cement production, which has low added value. The filter mud contains about 5-10% sugarcane wax, accounting for about 40% of the total sugarcane wax content. Sugarcane wax is a lipid present in the epidermis of sugarcane, mainly composed of waxy lipid (cane wax) and fatty lipid (sucrose fat). Cane wax has a wide range of uses, and can be used to make special-effect cosmetics, wax models, mold lubricants, and can also be used as a high-quality pol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11B11/00
Inventor 黄大权唐新邓春霞
Owner 广西大海阳光药业有限公司