Engelhard Industries, Union, N.J., has named John C. Bonacci to the position of general manager, Systems Department. In this position, Dr. Bonacci will assume overall management responsibility for production, marketing and sales, engineering and application technology for air and gas systems, sodium hypochlorite generators and cathodic protection systems. In addition, he will be responsible for Exhaust Controls, Inc., a subsidiary of Engelhard Industries.

Affiliated with Engelhard since 1975, Dr. Bonacci was manager of chemical engineering research prior to his present appointment.