| abstract |
The particular aim of this process is to retain detergents and surfactants in general, oils, fats, hydrocarbons and derivatives, and in particular fatty amines and polyamines, by bringing into contact with purifying substances, used alone or on a porous support. in conventional equipment known per se The purifying substances used are chosen from ion exchange resins of cationic type, natural silicates of zeolite, feldspars, montmorillonites, micas and chlorites groups, and mixtures of these substances with one another and optionally with other conventional purifying substances, said ion exchange resins being usable without deterioration up to 100 degrees C and said silicates up to 900 degrees C Applications: primary treatment of water after settling-flocculation; tertiary treatment of boiler water (refining of vapors, condensates and purges), discharges from cooling circuits, wastewater purified by bacterial filter or activated sludge, and air in air conditioning installations. |