Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A method for decolorizing sugar solution

A technology of sugar solution and solid-liquid mixture, which is applied in the production of sugar, purification of sugar juice, chemical instruments and methods, etc. It can solve the problems of unreported cellulose membrane pigment separation ability, limited cellulose dissolving ability, high consumption, etc. , to achieve the effect of easy regulation of decolorization rate, easy degradation and strong adaptability

Active Publication Date: 2021-10-15
澳泰(广东)生物科技有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method has limited ability to dissolve cellulose, the mass fraction of cellulose in the solution is less than or equal to 7%, and it needs to consume a large amount of sodium hydroxide and urea to dissolve a small amount of cellulose
In addition, this patent does not report the ability of the cellulose membrane to separate the pigment in the sugar solution

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Mix 1.6 grams of microcrystalline cellulose with 1 gram of sodium hydroxide, 1 gram of urea, and 8 grams of water at room temperature, stir thoroughly to form a solid-liquid mixture; cool the solid-liquid mixture from room temperature to 20 ℃ at a rate of 1 °C per minute. Lower the temperature to -18°C to obtain a translucent, viscous cellulose solution; spread the cellulose solution on a clean 6cm×6cm glass sheet by coating method, add 10 grams of normal temperature water, and cure for 12 hours to form fibers plain film; fully wash the cellulose film with pure water until the pH of the washing wastewater reaches the range of 7 to 9; remove the film and fix it with a supporting device; prepare a raw sugar aqueous solution with a mass fraction of 20%, take 4 ml For this solution, the pH of the sample is adjusted to 7.0, and the absorbance at 420 nm is 0.451; the raw sugar solution is passed through the above-mentioned cellulose membrane at a flow rate of 1 milliliter per ...

Embodiment 2

[0029] Mix 13 grams of microcrystalline cellulose with 15 grams of sodium hydroxide, 15 grams of urea, and 60 grams of water at room temperature, and stir thoroughly to form a solid-liquid mixture; the solid-liquid mixture is cooled from room temperature to 20 degrees Celsius at a rate of 0.7 ° C per minute. The temperature is lowered to -20°C, and a translucent and viscous cellulose solution is obtained; the cellulose solution is spread on a stainless steel mesh with a diameter of 10 cm and a pore size of 200 mesh by coating method, and 100 grams of normal temperature mass fraction of 70% The ethanol aqueous solution is solidified for 12 hours to form a cellulose film; the cellulose film is fully washed with pure water until the pH of the washing wastewater reaches the range of 7 to 9; the film is peeled off and fixed with a supporting device; the mass fraction is prepared It is 15% brown sugar aqueous solution, get 4 milliliters of this solution, sample pH is adjusted to 7.0,...

Embodiment 3

[0031] Mix 7.2 grams of microcrystalline cellulose with 5 grams of sodium hydroxide, 14 grams of urea, and 70 grams of water at room temperature, and stir fully to form a solid-liquid mixture; the solid-liquid mixture is cooled by 1 ° C per minute from room temperature to 20 ℃ was lowered to -18 ℃ to obtain a translucent, viscous cellulose solution; the cellulose solution was spread onto a stainless steel sheet with a diameter of 5 cm by casting method, and 40 grams of acetone aqueous solution with a mass fraction of 60% at room temperature was added. The curing lasts for 8 hours to form a cellulose film; the cellulose film is fully washed with pure water until the pH of the washing wastewater reaches the range of 7 to 9; the film is peeled off and fixed with a supporting device; the mass fraction of 30% is prepared Maltose aqueous solution, take 4 ml of this solution, adjust the pH of the sample to 7.0, and measure the absorbance at 420 nm to be 0.467; use a delivery pump to p...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
absorbanceaaaaaaaaaa
decolorization rateaaaaaaaaaa
Login to View More

Abstract

The invention relates to a method for decolorizing a sugar solution. First, a large amount of cellulose is completely dissolved in urea and sodium hydroxide aqueous solution by slowly cooling down, and then the cellulose is re-precipitated to obtain a cellulose film. The film is used as a The medium is filtered to separate the pigment in the sugar liquid, and the decolorized sugar liquid is obtained. The raw materials used in the method are all cheap and non-toxic; compared with the prior art, the amount of sodium hydroxide, urea and water required for dissolving cellulose in the present invention is significantly reduced, and the concentration of the cellulose solution far exceeds the prior art; The decolorization rate of sugar can reach more than 90%. The whole decolorization process has the advantages of simplicity, rapidity, low carbon emission and no "three wastes".

Description

technical field [0001] The invention relates to a method for decolorizing a sugar solution, and belongs to the technical fields of food processing and chemical separation. Background technique [0002] Sugar is one of the three essential nutrients for the human body, and it can also be used to make soft white sugar, granulated sugar, rock sugar, candy, etc. In 2017, global sugar production was close to 180 million tons, with Brazil leading the way. China is one of the largest producers of sucrose, as well as a major sugar consumer. Sugar liquid extracted from crops such as sugarcane and beet, as well as primary products such as brown sugar, raw sugar, and maltose, contain more pigment molecules, mostly lutein, carotene, phenols, quinones, and caramel. In order to produce high value-added products such as white sugar and refined sugar, it is necessary to remove the pigment contained in the solution of the above sugar products (hereinafter referred to as sugar solution). Th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C13B20/16C13K1/04C13K1/08C13K5/00C13K7/00C13K11/00C13K13/00B01D71/10B01D67/00
CPCB01D67/0002B01D67/0016B01D71/10C13B20/165C13K1/04C13K1/08C13K5/00C13K7/00C13K11/00C13K13/002C13K13/007
Inventor 艾硕韦丹黄永春黄承都张昆明杨锋
Owner 澳泰(广东)生物科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com