| 简介 |
FIELD : sorbents.
SUBSTANCE : gas and liquid drier containing moisture-absorbing substance contained in pores of a matrix with open pore system and connected to the surface of matrix is prepared by impregnating matrix with moisture-absorbing substance solution, to which alkali solution is added to pH as high as 10. Alkali solution can be selected from solutions of alkali and alkali-earth metal hydroxides and ammonia. Moisture-absorbing substance is a high-hygroscopic salt such as alkali-earth metal halides, sulfates, and nitrates. Open-pore system-containing matrix is selected from inorganic oxides, porous coals, naturally occurring sorbents, porous metals, and their mixtures.
EFFECT : increased dynamic water-adsorption capacity and avoided leakage of hygroscopic salt solution from matrix pores.
4 cl, 7 ex |
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