Method of preparing shaped active carbon
AssigneesSumitomo Durez Company, Ltd., Daiichi Tanso Kogyo KK
InventorsTakeshi Takemura, Yoshihisa Katoh, Shigeyuki Kurita, Susumu Sasaki, Kyohei Funabiki, Keizo Hatano
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Abstract
This invention relates to a process for manufacturing a shaped active carbon by using a one step phenol-formaldehyde resin, a modified phenol-formaldehyde resin or a mixture thereof as a binder. By this method, a shaped active carbon can be obtained having increased mechanical strength without deterioration of the adsorption capacity.
Claims10
A composition comprising active carbon particles and as a binder therefor a cured resin selected from the group consisting of a one-step phenolic resin and a furfural-modified phenolic resin wherein said resin is characterized by being soluble in water at 25.degree. C prior to curing and is combined with said active carbon in a weight ratio from 1 part of said binder to 10 parts of said active carbon to 1 part of said binder to 2 parts of said active carbon.
A process for preparing a shaped object from a granular active carbon composition comprising:
- 1. mixing with said granular active carbon a binding amount of a curable thermosetting resin beinder selected from the group consisting of a one-step phenolic resin and a furfural-modified phenolic resin, said resin having the property of solubility in water at 25.degree. C,
- 2. forming said shaped object from the mixture of said binder and granular carbon, and
- 3. drying and curing said shaped object.
Dependencies are inferred from the claim text.