Improvements in the Process of the Separation of Solid Paraffins, particularly Ozokerite-like Hydrocarbons, from Mineral Oil Residues, and Viscous or Semi-liquid Natural Products.
GB191023125A
Process for Separating Solid Hydrocarbons from Naphtha Residues and Tars.
GB191101688A
Process for Separating Solid Hydrocarbons from Naphtha Residues and Tars.
GB190927116A
Process of Separating Solid Hydrocarbons from Residues of Mineral Oil and Tar.
