Improvements in and relating to the refining of heavy mineral oils by means of liquefied sulphurous acid
GB325315A
An improved apparatus for evaporating and recovering sulphurous acid from mixtures of hydrocarbons and sulphur dioxide, possessing a large excess of sulphur dioxide
DE499613C
Device for refining heavy mineral oils with the aid of sulphurous acid
GB312457A
Process and apparatus for drying gases
GB307649A
Improvements in and relating to the production of mineral lubricating oils
GB301955A
Improvements in and relating to the purification of petroleum hydrocarbons
DE469289C
Process for improving petroleum distillates
GB295253A
Improved treatment of gasoline and similar petroleum products
GB273999A
An improved process for converting high-boiling hydrocarbons, which have been freed from the substances soluble in liquid sulphurous acid, into low-boiling hydrocarbons by means of aluminium chloride
GB275884A
Process for the continuous treatment of hydrocarbons
GB279774A
Process and apparatus for the purification of liquid hydrocarbons by liquid sulphur dioxide in counter current
DE493782C
Process for the treatment of hydrocarbons with liquefied sulphurous acid
DE457580C
Process for the continuous treatment of hydrocarbons
GB261732A
An improved process for eliminating water from liquid sulphurous acid gas
GB268726A
Improvements in the purification of hydrocarbons and the like by liquid sulphur dioxide
DE463850C
Method and device for the continuous treatment of hydrocarbons
GB258846A
Improvements in and relating to the purification of liquid hydrocarbons
GB269118A
Improved method of expelling the so gases from mixtures of so gases and oil
DE445060C
Device for the uninterrupted removal of sulphurous acid
