EP0234878A3
(en )
1989-01-18
Process for upgrading diesel oils
SG95992G
(en )
1992-12-04
Process for the hydrogenation of hydrocarbon oils
EP0272038A3
(en )
1989-08-16
Method for hydrocracking heavy fraction oils
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
ZA887281B
(en )
1989-06-28
Process for refining ethylene glycol
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
PH25825A
(en )
1991-11-05
Heavy oil cracking process
GB2206678B
(en )
1990-09-26
Method for refining molten metal
GB8908790D0
(en )
1989-10-04
Method for refining aluminium alloys
DE3474458D1
(en )
1988-11-10
A method for the hydrogenation treatment of heavy oils
PL265341A1
(en )
1988-12-08
Method for refining worked oils
EP0295531A3
(en )
1989-08-23
Hydrogenation process
DE3562760D1
(en )
1988-06-23
Method for extracting fumes
GB2095279B
(en )
1984-06-06
Process for refining coal-based heavy oils
GB8711192D0
(en )
1987-06-17
Metal refining process
GB2149333B
(en )
1987-04-15
Electroslag refining method
PL264008A1
(en )
1988-10-13
Method for refining copper stone
HUT49745A
(en )
1989-10-30
Method for making zno-varistor-ceramic
CS617887A1
(en )
1989-03-14
Method of cyclohexanole refining