파·분쇄, 체가름, 자력 및 비중 선별과 같은 건식 처리 기술을 이용하여 벤토나이트 광의 고순도화 특성을 고찰하였다. 시료로 사용한 감포 13호 및 감포 35호 시료의 CEC는 88.3, 93.3 meq/100 g이었으며, 석영, 장석과 같은 불순 광물을 함유하고 있었다. 벤토나이트를 구성하는 광물들의 물리적 특성차이를 이용한 정제 기술을 적용함으로써 몬모릴로나이트의 품위를 향상시킬 수 있었으며, 이들의 복합 공정에 의한 처리 결과 고품위의 몬모릴로나이트를 회수할 수 있었다. 복합 공정에 의한 처리 결과, 감포 13호와 35호의 회수율은 각각 68.6, 45.9%이었으며 회수된 산물의 CEC 는 96.9, 109.6 meq/100 g으로 나타났다.

The effect of major operating parameters in spray drying sorber(=SDS) for automatic control for the simultaneous removal of acidic and organic gaseous pollutants from solid waste incinerator was performed. The field experiment was carried out in pilot scale test for the quantification of major operating parameters of hydrophilic and the hydrophobic pollutants. The removal efficiencies of SO2 and HCI in the 5wt% slurry condition were being increased with the increase of the stoichiometric ratio which is the molecular ratio of lime to the pollutant concentration, and with the decrease of inflow flue gas temperature in the pilot SDS reactor. The removal efficiency along the height of spray drying sorber was closely related to the temperature profile, and more than 90% of total removal efficiency was achieved in an absorption region. For the removal of acidic gas the optimum operating condition considering the economics and a stable operation is the 5wt% of slurry concentration, 1.2 of stoichiometric ratio and 250℃ of inflow flue gas temperature. For the organic gases of benzene and toluene the removal efficiencies were 20 - 60% which is much lower than that of acidic gas. The best removal efficiency was obtained at 1.5 of stoichiometric ratio and 250℃ of inflow flue gas temperature. The organic's removal efficiency along the height of spray drying sorber was quite different from that of acidic gas, that is, more than 60% of the total removal efficiency for benzene and 90% of the total removal for toluene were achieved in the dried adsorption region, which was formed at the lower or exit part of the reactor.