| Title |
Tretinių aminogrupių turinčio tinklinio krakmolo sorbcinės savybės / |
| Translation of Title |
Sorption properties of cross – linked starch having tertiary amino groups. |
| Authors |
Vinciūnas, Ramūnas |
| Full Text |
|
| Pages |
51 |
| Keywords [eng] |
adsorption ; desorption ; vanillic acid |
| Abstract [eng] |
In this research optimal reaction conditions between cross – linked starch diethylaminoethanol (DEAE) were found. It was found that in the presence of optimal amount of NaOH catalyst the number of cationic groups attached depends on the amount of DEAE in the reaction mixture. Adsorptions of model anionic compound - methyl orange (MO) and fenolic acid derivative – vanillic acid by linked starch containing tertiary amino groups (TKTE) were analyzed in different temperatures. Adsorption izoterm curve calculations were performed based on Lengmuir, Freundlich and Dubinin-Radushkevich absorpion models, thermodynamic adsorption rates were calculated. It was found that equally substituted TKTE is able to adsorb amounts of vanillic acid that are nearly double compared to the amounts of MO. The desorption of TKTE adsorbed vanillic acid was analyzed. It was found that the greatest amount of vanillic acid was released into the solution of phosphate buffer having pH=6,8. Technological blueprints for the production of TKTE adsorbed vanillic acid were proposed. . |
| Dissertation Institution |
Kauno technologijos universitetas. |
| Type |
Master thesis |
| Language |
Lithuanian |
| Publication date |
2015 |
