EP0234878A3
(en )
1989-01-18
Process for upgrading diesel oils
ZA885921B
(en )
1989-04-26
Process for the hydrogenation of hydrocarbon oils
EP0272038A3
(en )
1989-08-16
Method for hydrocracking heavy fraction oils
EP0310189A3
(en )
1990-01-10
Process for refining ethylene glycol
EP0272528A3
(en )
1989-10-18
Method for making lithoplate
PL273671A1
(en )
1989-03-20
Method for hydrogenating regeneration of worked oils
EP0285233A3
(en )
1990-08-08
Method for hydrocracking heavy fraction oil
EP0304682A3
(en )
1990-03-07
Process for hydrogenation of heavy oil
EP0269277A3
(en )
1988-07-06
Process for degumming triglyceride oils
YU220489A
(en )
1991-08-31
Process for oils hydrogenating
ZA889001B
(en )
1989-08-30
Process for continuously melting scrap as well as apparatus for performing this process
GB2222420B
(en )
1992-09-09
Process for enhancing oil recovery
EP0318125A3
(en )
1990-03-14
Heavy oil cracking process
GB8908790D0
(en )
1989-10-04
Method for refining aluminium alloys
GB2206678B
(en )
1990-09-26
Method for refining molten metal
EP0295531A3
(en )
1989-08-23
Hydrogenation process
DE3562760D1
(en )
1988-06-23
Method for extracting fumes
GB2204595B
(en )
1990-11-28
Metal refining process
GB2095279B
(en )
1984-06-06
Process for refining coal-based heavy oils
GB2149333B
(en )
1987-04-15
Electroslag refining method
PL264008A1
(en )
1988-10-13
Method for refining copper stone
GB8508054D0
(en )
1985-05-01
Oil refining process
GB8508451D0
(en )
1985-05-09
Oil refining process
PL267300A1
(en )
1989-02-20
Method of reclaiming non-selected used oils
BG51964B2
(en )
1995-01-31
Method for copper refining