Process for producing high-grade needle coke
Номер патента: DE3721245A1
Опубликовано: 04-02-1988
Автор(ы): Dagobert Dr Wallach, Dieter Dr Homann, Erika Dipl Ing Onderka, Gerhard Prof Dr Zimmermann, Grete Prof Dr Bach, Hans-Heiner Dipl In Eichstaedt, Helmut Dr Schmiers, Johannes Prof Dr Teubel, Juergen Dipl Ing Sachse, Klaus Dr Bindernagel, Klaus Prof Dr Anders, Peter Dr Raeppel, Ralf Dr Helbig, Wolfgang Dr Nette
Принадлежит: Leuna Werke GmbH
Опубликовано: 04-02-1988
Автор(ы): Dagobert Dr Wallach, Dieter Dr Homann, Erika Dipl Ing Onderka, Gerhard Prof Dr Zimmermann, Grete Prof Dr Bach, Hans-Heiner Dipl In Eichstaedt, Helmut Dr Schmiers, Johannes Prof Dr Teubel, Juergen Dipl Ing Sachse, Klaus Dr Bindernagel, Klaus Prof Dr Anders, Peter Dr Raeppel, Ralf Dr Helbig, Wolfgang Dr Nette
Принадлежит: Leuna Werke GmbH
Реферат: The invention relates to a process for producing a high-grade needle-coke which is suitable for producing electric-steel graphite electrodes, utilising residual oils (resins, mazuts, masuts) obtained as a result of systematic hydrocatalytic treatment of vacuum gas oils and subsequent pyrolysis of the distillation residue produced in the separation of the reaction products. These residual oils can be employed on their own or as a mixture with other pyrolysis residual oils, if the mixtures have an aromaticity of at least 0.6.
Process for preparing a raw material for the manufacture of needle coke
Номер патента: US4127472A. Автор: Hirofumi Sunago,Wataru Migitaka,Yukiyosi Ogawa,Takanori Nisihata. Владелец: Nittetsu Chemical Industrial Co Ltd. Дата публикации: 1978-11-28.