PRODUCTS AND PROCESSES: PROVIDING INDUSTRY WITH THE MEANS TO COMBAT CORROSION

Dehumidification. To keep their powder dry used, literally, to be half the battle for soldiers. Today, manufacturers have the same battle: if they can protect their factories from excessive damp, then their costs are greatly cut. Recently a machine has been evolved for keeping factories dry. It is a simple, non‐chemical, non‐refrigerant unit, relying on activated alumina, a hard, granular, chemically inert, porous substance. It has the ability, not only of taking up moisture from the air (or other gases) passed through it, but also of releasing this moisture under heat. Continuous, alternate drying and heating has no harmful effect on activated alumina, which thus has, under normal operation conditions, a practically indefinite life.