| 摘要 |
PURPOSE:To improve the performance of the gas adsorbing element by integrally and securing fixing and binding active carbon and/or active alumina and metal silicate aerosol having gas adsorbing activity to a matrix. CONSTITUTION:Paper essentially consisting of inorg. fibers sheeted to a low density is laminated to form the matrix having the shape of the gas adsorbing element which has many small through-holes. A dispersion prepd. by dispersing the powdery or short fibrous active carbon and/or active alumina into an aq. water glass soln. is impregnated in this matrix. The matrix is immersed, after drying, into an aq. soln. of a metal salt, such as A1 salt or Mg salt, which is soluble in water and can generate an insoluble gel-like silicate by reacting with the water glass to form the hydrogel of the metal siliate by the reaction of the water and the above-mentioned metal salt. The gel is then rinsed and dried to integrally and securely fix and bind the active carbon and/or active alumina and the metal silicate aerosol having the gas adsorbing activity to the matrix. As a result, the performance of the gas adsorbing element is additionally improved. |
