(19)

(11)

EP 0 232 259 A1

(12)

(43) Date of publication: 19.08.1987 Bulletin 1987/34 (21) Application number: 85904179.0 (22) Date of filing: 02.08.1985

(51) International Patent Classification (IPC):  B01J 8/ 18( . ) C10G 11/ 18( . ) (86) International application number: PCT/US1985/001477 (87) International publication number: WO 1987/000853 (12.02.1987 Gazette 1987/04)

(84) Designated Contracting States: IT (71) Applicant: TOTAL ENGINEERING AND RESEARCH COMPANY Denver, CO 80202 (US)	(72) Inventors: MAULEON, Jean-Louis F-75781 Paris Cedex 16 (FR) NEWMAN, Robert, J. Englewood, CO 80112 (US) (74) Representative: Crisp, David Norman, et al  D. YOUNG & CO. 21 New Fetter Lane London EC4A 1DA London EC4A 1DA (GB)