CH390227A
(en )
1965-04-15
Process for the separation and purification of hydrogen
BE613191A
(en )
1962-05-16
Welding or casting process under molten slag
FR1329645A
(en )
1963-06-14
Hydrogen purification process
BE607219Q
(en )
1961-12-01
Process for treating molten copper containing oxygen
BE587281A
(en )
1960-08-04
Pure oxygen refining process for cast iron
FR1496530A
(en )
1967-09-29
Process for treating streams containing nitrogen oxides
FR1295376A
(en )
1962-06-08
Process for treating solutions containing toxic copper
BE614462A
(en )
1962-06-18
Process for treating ores containing iron
FR1302767A
(en )
1962-08-31
Advanced process for the removal of hydrogen sulfide
BE584732A
(en )
1960-03-16
Process for degassing molten steel
BE606544A
(en )
1961-11-16
Process for the treatment of asbestos
FR1336389A
(en )
1963-08-30
Process for the purification and concentration of hydrogen peroxide
BE619921A
(en )
1963-01-09
Process for decomposing alkali metal amalgams
FR1374650A
(en )
1964-10-09
Process for removing hydrogen sulfide from gases
FR1290168A
(en )
1962-04-13
Process for improving cements or mixtures containing them
FR1288281A
(en )
1962-03-24
Process for removing dissolved oxygen from water
FR1184952A
(en )
1959-07-28
Metallurgical steel treatment process
FR1267701A
(en )
1961-07-21
Process for the electrolytic treatment of metals
FR1274123A
(en )
1961-10-20
Metal bath refining process
FR1265688A
(en )
1961-06-30
Process for the treatment of iron ores containing nickel-chromium
FR1287729A
(en )
1962-03-16
Process for the treatment of refractory metals
FR1326507A
(en )
1963-05-10
Process for treating molten metals
FR1381250A
(en )
1964-12-14
Improved Oxygen Concentration Process
FR1336698A
(en )
1963-09-06
Improved process for the treatment of materials containing sulfur
FR1338699A
(en )
1963-09-27
Process for the purification of polymers containing impurities of metal compounds