BENEFICIAL <BNL> UNIT SALE APPROVED Beneficial Corp said the sale of its American Centennial Insurance Co subsidiary to <First Delaware Holdings Inc> was approved by the Delaware Insurance Department. Under the transaction, American Centennial will receive a cash infusion of 200 mln dlrs, including the settlement of tax sharing agreements with Beneficial Corp, Beneficial said. It will also receive 25 mln dlrs from Beneficial International Insurance Co, another Beneficial subsidiary being purchased by the management-led group of First Delaware, the company said.