(19)
(11) EP 0 083 143 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
30.05.1984 Bulletin 1984/22

(43) Date of publication A2:
06.07.1983 Bulletin 1983/27

(21) Application number: 82201675

(22) Date of filing: 29.12.1982
(84) Designated Contracting States:
DE GB NL

(30) Priority: 29.12.1981 US 335520

(71) Applicant: UNION CARBIDE CORPORATION
 ()

(72) Inventors:
  • Moore, Arthur William
     ()
  • Dickinson, Eric Marshall
     ()

   


(54) Process for producing premium coke


(57) A premium coke is made by the delayed coking of a blend of pyrolysis tar and hydrotreated decant oil. This premium coke is used for the production of graphite electrodes having a low coefficient of thermal expansion.






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