Process for preparing porous hybrid comprising zeolite and chitosan and poruos hybrid prepared thereby
AssigneeThe Rafferty Patent Law Firm
InventorsKyung Yoon, Eun Lee, Eun Jeon, Yun Lee
Life of this patent
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Abstract
The present invention relates to a process for preparing a porous hybrid comprising zeolite and chitosan and a porous hybrid prepared thereby, in particular, to a process for preparing a porous chitosan-linking compound-zeolite hybrid, which comprises the steps of: (a) forming a linking compound-zeolite intermediate by linking a linking compound to the surface of zeolite; and (b) preparing said chitosan-linking compound-zeolite hybrid by reacting said linking compound-zeolite intermediate with chitosan or a linking compound-chitosan, a porous hybrid prepared thereby, an adsorbent and a method for purifying water.
Claims23
A process for preparing a porous chitosan-linking compound-zeolite hybrid, comprising the steps of:
- (a) forming a linking compound-zeolite intermediate by linking a linking compound to the surface of zeolite;
- and
- (b) preparing said chitosan-linking compound-zeolite hybrid by reacting said linking compound-zeolite intermediate with chitosan or a linking compound-chitosan.
A process for preparing a porous chitosan-linking compound-zeolite hybrid, comprising the steps of:
- (a) forming a linking compound-zeolite intermediate by linking a linking compound to the surface of zeolite, in which the surface of said linking compound-zeolite intermediate displays functional groups unreactive with functional groups of chitosan or a linking compound-chitosan;
- and
- (b) preparing said chitosan-linking compound-zeolite hybrid by homogeneously mixing said linking compound-zeolite intermediate with chitosan or said linking compound-chitosan and reacting the resulting mixture with a bifunctional compound to be reactive with said linking compound-zeolite intermediate and chitosan or said linking compound-chitosan.
A process for preparing a porous chitosan-linking compound-zeolite hybrid, comprising the steps of:
- (a) forming a linking compound-zeolite intermediate by linking a linking compound to the surface of zeolite;
- (b) mixing said linking compound-zeolite intermediate with chitosan or a linking compound-chitosan;
- (c) transforming the mixture of step (b) to a sponge form;
- and
- (d) preparing said chitosan-linking compound-zeolite hybrid by forming covalent bonds between function groups of said linking compound-zeolite intermediate and function groups of said chitosan or said linking compound-chitosan contained in said sponge form.
A process for preparing a porous chitosan-linking compound-zeolite hybrid, comprising the steps of:
- (a) transforming a chitosan solution or a linking compound-chitosan solution to a sponge form;
- (b) forming a linking compound-zeolite intermediate by linking a linking compound to the surface of zeolite;
- and
- (c) preparing said chitosan-linking compound-zeolite hybrid by forming covalent bonds between function groups of said linking compound-zeolite intermediate and function groups on the surface of said chitosan sponge or said linking compound-chitosan sponge.
Dependencies are inferred from the claim text.