Title: Decolouring method of hydrolytic neutralization liquid in xylose production process
Application Number: 03113068 Application Date: 2003.03.27
Publication Number: 1442489 Publication Date: 2003.09.17
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C07H3/02,C13K1/02
Applicant(s) Name: Nanjing Univ. Address: 210093
Inventor(s) Name: Chen Jinlong, Sun Yue
Attorney & Agent: cheng huaming
Abstract:
     A process for decolouring the hydrolytic neutralizing liquid during xylose production includes such steps as steps as filter, adsorption by adsorption tower filled by NDA-99 or macroreticular adsorption resin for decolouring, desorpting said resin by industrial alcohol, sodium hydroxide solution and water, rectifying the eluting alcohol liquid for recovering alcohol, concentrating the eluting sodium hydroxide solution, and buring it along with the residual liquid of eluting alcohol liquid. Its advantages are high effect and low cost.
Time: 10