HOECHST CELANESE SETS EXPANSION PROGRAM Hoechst AG's <HFAG.F> U.S. unit, Hoechst Celanese Corp, said it has begun projects that will cost more than 150 mln dlrs. The unit was formed last month when Hoechst completed the acquisition of Celanese for 2.84 billion dlrs. The company said it will expand its Sanwet super absorbent polymers unit and its acrylic acid facility. It also said it plans an acetaminophen production plant at Bishop, Texas.