Improvements in or relating to the distillation and fractionation of tars, oils and like liquid hydrocarbons
GB616730A
Improvements in the production of hard pitch and oils from medium soft coal tar pitch
GB597449A
Improvements in or relating to processes and plant for the manufacture of pitch
GB610017A
Improvements in or relating to processes for cracking and/or hydrogenating oils, tars and like hydrocarbons
GB586798A
Improvements in or relating to the distillation and fractionation of tars, oils and like liquid hydrocarbons
GB563240A
Improvements in or relating to the distillation of tars and like hydrocarbon oils
GB559992A
Improvements in or relating to the production of naphthalene
GB557482A
Improvements in or relating to apparatus for the distillation of tars and like hydrocarbon oils
GB546524A
Process and apparatus for the purification of anthracene, phenanthrene and carbazole
GB533775A
Improvements in or relating to pumps
GB526174A
Improvements in or relating to the distillation and fractionation of liquid hydrocarbons
GB501280A
Improvements in or relating to the distillation and hydrogenation of liquid hydrocarbons and glycerides
GB499332A
Process and plant for the recovery of commercial benzene (benzol), toluol and like products from coal gas, with the purification of coal gas from sulphur, gums and gum-forming organic compounds
GB473083A
Improvements in pumps for circulating liquor in coal and like gas purification plant
GB472541A
Improvements in or relating to the distillation and cracking of tars, oils and like liquid hydrocarbons, and of fats
GB428065A
Improvements in or relating to the concentration of gas liquor
GB424645A
Improvements in or relating to the distillation of tar and the cracking of oil
GB423432A
Improvements in or relating to plant for producing and treating ammonium sulphate
GB418589A
Improvements in or relating to apparatus for the chemical treatment, the washing, the draining and the drying of granular, crystalline or like substances
GB313380A
Improvements in and relating to furnaces and furnace grates