ALLIS-CHALMERS <AH> ESTIMATES PROCEEDS OF SALE Allis-Chalmers Corp said it expects cash proceeds from the proposed sale of its solids processing equipment and minerals systems businesses to exceed 90 mln dlrs, with no material gain or loss anticipated from the planned sale. Closing of the sale to Boliden AB of Sweden would be part of the overall restructure of Allis-Chalmers, which was announced on March Four, the company said. Allis-Chalmers said the business entities included in the transaction had total sales of about 250 mln dlrs in 1986, with total employment of about 4,300. The solids processing equipment business involves manufacture of crushing and related equipment for mining. It consists of operations in Sweden, Australia, Brazil, France, Great Britain, Spain and Appleton, Wis. The minerals systems business has operations in West Allis, Wis., and Lachine, Quebec, Canada.