Gilbert L. Tugwell has been appointed president of the Engelhard Industries Division of Engelhard Minerals & Chemicals Corporation.

Mr. Tugwell, who has been with the company 33 years, also serves as a director, member of the executive committee and executive vice-president of the parent corporation.

Richard C. Glogau, who joined the firm in 1967, after 27 years with E. I. Du Pont de Nemours, succeeds Mr. Tugwell as executive vice-president of the Engelhard Division. Mr. Glogau also was elected a director, member of the executive committee and senior vice-president of the corporation.