(19)

(11)

EP 0 067 870 A1

(12)

(43) Date of publication: 29.12.1982 Bulletin 1982/52 (21) Application number: 82900519.0 (22) Date of filing: 23.12.1981

(51) International Patent Classification (IPC):  B01J 20/ 22( . ) B01D 17/ 02( . ) C02F 1/ 28( . ) C07C 29/ 76( . ) B01D 15/ 00( . ) B01D 53/ 02( . ) C07C 7/ 12( . ) C10G 25/ 00( . ) (86) International application number: PCT/US1981/001742 (87) International publication number: WO 1982/002342 (22.07.1982 Gazette 1982/18)

(84) Designated Contracting States: BE CH DE FR GB LI NL SE (30) Priority: 30.12.1980 US 19800221295 (71) Applicant: CHAMBERS, Carlon C. Grand Junction, CO 81501 (US)	(72) Inventor: CHAMBERS, Carlon C. Grand Junction, CO 81501 (US) (74) Representative: Taylor, Derek George, et al  Mathisen, Macara & Co. The Coach House 6-8 Swakeleys Road Ickenham Uxbridge UB10 8BZ Ickenham Uxbridge UB10 8BZ (GB)