Unlock instant, AI-driven research and patent intelligence for your innovation.

Production method for xylose

A production method, xylose technology, applied in sugar production, sugar production, glucose production, etc., can solve the problems of unstable quality, high cost, large investment, etc., and achieve stable product quality, increased output, and easy investment Effect

Inactive Publication Date: 2005-03-16
余伟
View PDF0 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional xylose production process is complicated and the cycle is long. The entire process takes 50 hours to complete, with high cost, low output, large investment and unstable quality.

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

[0016] Embodiment: 1, the purification of raw material:

[0017] Weigh 30 kilograms of raw corncobs, place them in a reactor, add 240 kilograms of water to soak them, heat them at 125 ° C for 2 hours, then add dilute sulfuric acid to hot water until the concentration of sulfuric acid reaches 0.1%, so that under normal pressure It can also smoothly dissolve the ash content of corn cobs, bagasse and rice husks;

[0018] 2. Hydrolysis:

[0019] Add the purified corncobs to dilute sulfuric acid with a concentration of 1% and slowly stir, heat and react at 120°C for 2 hours, and then filter to obtain a hydrolyzate;

[0020] 3. Neutralization and filtration:

[0021] Heat the filtrate to below 80°C, add calcium carbonate evenly while stirring until the pH value reaches 2.8-3.0, continue stirring for 40 minutes, and then filter the neutralized solution with a 200-mesh filter cloth;

[0022] 4. Ion exchange:

[0023] According to the process of phenolic sulfonic acid resin - polya...

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

No PUM Login to View More

Abstract

The invention discloses a xylose production method. The method comprises : weighing raw material corn cob or bagasse or rice husk, placing in reactor, purifying, hydrolyzing using 1% dilute sulfuric acid, then adding calcium carbonate to neutralize, pH 2.8-3.0, filtering, successively using cation exchange resin, anion exchanging resin and anion exchanging resin, at last enzyme hydrolyzing eluent to obtain product. The method is simple compared to original method, and production period is shortened to 8 hours from over 50 hours, the cost is lowered ,the yield is increased.

Description

technical field [0001] The invention relates to a production method of xylose. Background technique [0002] The existing method of producing xylose is to adopt the acetone precipitation method. The traditional xylose production process is complicated and the cycle is long. The whole process takes 50 hours to complete, which has high cost, low output, large investment and unstable quality. Contents of the invention [0003] The object of the present invention is to provide a production method of xylose with simple production process, shortened production period, reduced cost, increased output, small investment and stable quality. [0004] Technical scheme of the present invention comprises the following steps: [0005] 1. Purification of raw materials: [0006] Weigh the raw material corn cob or bagasse or rice husk or their mixture, put it in the reactor, add 8 times of water to soak it, heat it at 120°C-130°C for...

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
IPC IPC(8): C12P19/02C13K1/00
Inventor 余伟
Owner 余伟