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June Chementator Briefs

By Gerald Ondrey |

Metals recovery Dinnissen Process Technology B.V. (Sevenum, The Netherlands; www.dinnissen.nl) has developed a purpose-built system to recover valuable metals — such as chrome and molybdenum — from highly viscous residual waste from the petrochemical industry. Such waste, which is often contaminated with wood, stone and iron particles, has been almost impossible to process, says the company. The thick, viscous tar mass (from drums, containers and bags) is first placed in tipper units, which are vibrated and shaken to empty the mass into a scraper unit, which is equipped with scrapers and breakers. The scraper unit processes the waste into a homogeneous material, which is then metered via a worm-wheel conveyor to an incinerator. There, waste products are completely burned, leaving behind pure metal that is cooled in a silo before being packed in bags. More information about the system will be available at the company’s Achema exhibition (Hall 5.0, Stand D17). Desulfurizing biogas Last month, Lanxess AG (Leverkusen, Germany; www.lanxess.com) introduced Bayoxide E 16, a highly effective synthetic iron oxide for reducing hydrogen sulfide (H2S) in biogas that can be added directly to the fermenter. Bayoxide E 16 reacts…
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