This research project is concerned with liquid-liquid extraction. Specifically, it is a study of the mechanisms of solute transfer in spray towers. A theory is proposed which postulates the existence of three separate stages of solute transfer. These stages of extraction and the operating variables which seem to affect them are discussed.
An experimental method for measuring the adhesion of leathers to glass plates has been developed. By means of the method, variations in the adhesive character of leathers are demonstrated.