Transcription of ADSORPTION AND ION EXCHANGE S preferential attraction …
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ADSORPTION AND ION EXCHANGE S preferential attraction …
15 ADSORPTION AND ION EXCHANGE eparation of the components of a fluid can be effected by contacting them with a solid that has a preferential attraction for some of them. Such S processes are quantitatively significant when the specific surfaces of the solids are measured in hundreds of m*/g. Suitable materials are masses of numerous fine pores that were generated by expulsion of volatile substances. The most important adsorbents are activated carbon, prepared by partial volatilization or combustion of a carbonaceous body, and activated alumina, silica gel, and molecular sieves which are all formed by expulsion of water vapor from a solid.
15.2. ION EXCHANGE EQUILIBRIA 497 TABLE 15.2-(continued) (b) Typical Properties of Union Carbide Type X Molecular Sieves Ncniiiiinl piirv hilk I Irill ld IGpiililiriiiiii Basic diaiiieter, density, adsorption (mu), HtO capacity, Molecules Molecules type angstroms Available form Ib/ft3 Btdh HtO %wt adsorbed excluded Applications 3A 3 Powder 30 1800 23 Molecules with an Molecules with The ...
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