Transcription of ADSORPTION AND ION EXCHANGE S preferential attraction …
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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. The starting material for silica gel is a coagulated silicic acid and that for molecular sieves is hydrated aluminum silicate crystals that end up as porous crystal structures.
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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4A MOLSIVTM A, Molecular sieve, Triple Offset Valves for Molecular Sieve Applications, Molecular, And Color from Textile Effluent, And Color from Textile Effluent by Using Coagulants, Adsorbents, MATERIAL SAFETY DATA SHEET, POLYETHYLENEIMINE-LOADED SILICA WITH A, The Refining, Petrochemicals & Gas Industries Products, Vinyl Chloride