发明名称 |
Method of adsorbing dye in aqueous solution by chemical cross-linked chitosan beads |
摘要 |
The present invention provides a method of adsorbing dye by cross-linked chitosan beads comprising the steps of providing chitosan and dissolving the chitosan to form a chitosan solution, mixing the chitosan solution with a tripolyphosphate (TPP) solution to form ionic cross-linked chitosan beads, cross-linking the ionic cross-linked beads to form the cross-linked chitosan beads by adding NaOH and cross-linking agent and shaking for about a first period at temperature about 25-55 centigrade; and adding the cross-linked chitosan beads in dye solution to adsorb the dye. The cross-linked chitosan beads is used in acid or neutral solution to adsorb reactive type dye, acid type dye or direct type dye.
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申请公布号 |
US2003101521(A1) |
申请公布日期 |
2003.06.05 |
申请号 |
US20020151755 |
申请日期 |
2002.05.16 |
申请人 |
CHIOU MING-SHEN;LI HSING-YA |
发明人 |
CHIOU MING-SHEN;LI HSING-YA |
分类号 |
B01D15/00;B01J20/24;B01J20/26;C02F1/28;C08B37/08;D06P1/00;(IPC1-7):D06P1/00 |
主分类号 |
B01D15/00 |
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