coal tar

Angol

Főnév

coal tar (tsz. coal tars)

1. szénkátrány
   • 1989, Alain Chauvel, Gilles Lefebvre, Petrochemical Processes: Major Oxygenated, Chlorinated And Nitrated Derivatives, p. 123:

     Phenol can be obtained from coal tars by two methods : (a) Directly by separation of the product contained in this type of feedstock, at the rate of 0.5 to 1.5 per cent weight.