PORI

FATTY ACIDS

ROLLING AND COOLING OILS APPLIED TO ROLLS IN THE HOT AND COLD ROLLING OF STEEL

APPARATUS FOR CLARIFYING WATER BY INTRODUCTION OF AIR UNDER PRESSURE AND CHEMICAL FLOCCULATION; APPARATUS FOR RECOVERING OIL FROM WATER BY INTRODUCTION OF AIR UNDER PRESSURE AND CHEMICAL FLOCCULATION; APPARATUS FOR REFINING RECOVERED WASTE OIL BY ACID NEUTRALIZATION AND VACUUM SEPARATION [ ; APPARATUS FOR RECOVERING HYDROCHLORIC ACED FROM AQUEOUS EFFLUENT BY MECHANICAL MEANS WITH THE ADDITION OF HEAT AND OXYGEN]