EP 0138235 B1 19860910 - PROCESS FOR PREPARING A THERMAL-STABLE PITCH AND OIL FROM AROMATIC PETROCHEMICAL RESIDUES AND ITS USE
Title (en)
PROCESS FOR PREPARING A THERMAL-STABLE PITCH AND OIL FROM AROMATIC PETROCHEMICAL RESIDUES AND ITS USE
Publication
Application
Priority
DE 3334842 A 19830927
Abstract (en)
[origin: EP0138235A1] 1. A process for the production of thermally stable pitches from residues of the petrochemical processing containing highly aromatic, unsaturated compounds, characterised by mixing the highly aromatic residues with residues from the hydrogenation refining boiling between 150 and 280 degrees C at a ratio of 1:0,02 to 1:0,25 and heating to a temperature between 350 and 400 degrees C under the pressure which develops during said heating, and rectifying the reaction product under atmospheric or reduced pressure to obtain fractions of aromatics and a pitch with a softening point of at least 50 degrees C, measured according to Kraemer-Sarnow.
IPC 1-7
IPC 8 full level
C10C 1/16 (2006.01); C10C 3/00 (2006.01); C10C 3/06 (2006.01); D01F 9/145 (2006.01)
CPC (source: EP)
C10C 3/005 (2013.01)
Designated contracting state (EPC)
BE DE FR GB IT NL
DOCDB simple family (publication)
EP 0138235 A1 19850424; EP 0138235 B1 19860910; DE 3334842 A1 19850404; DE 3460676 D1 19861016; ES 533880 A0 19850301; ES 8503312 A1 19850301; JP S6092388 A 19850523
DOCDB simple family (application)
EP 84200680 A 19840514; DE 3334842 A 19830927; DE 3460676 T 19840514; ES 533880 A 19840629; JP 20071684 A 19840927