Translation of "Pitch coke" in German

In general, the coke is a calcined petroleum coke, and/or a partially calcined pitch coke.

Under carbon one can understand here also coke, pitch and graphite.

Anodes for aluminium electrolysis use consisting of petrol coke, pitch and normally recycled anodes, which are formed to shape specifically intended for a particular smelter and baked in anode baking ovens to a temperature of around 1150 °C

The operator shall analyse and report the mass flows into and from the installation and respective stock changes for all relevant fuels and materials (e.g. pitch, coke or packing coke) separately.

The invention relates to a carbon paste for self-calcining electrodes, in particular Soederberg anodes, refractory linings and connections for electrode joining points, having granulates of anthracite, graphite, petroleum coke, pitch coke, metallurgical coke and/or residual lining or electrode material as solid component and also a binder, and relates too to a process for manufacturing this carbon paste.

For example, the derivative products electrode binding agents and pitch coke are required for the manufacture of electrodes in the metallurgical, as well as in the graphite and artificial carbon industries.

In keeping with the state of the art granulated anthacite, graphite, petroleum coke, pitch coke and/or metallurgical coke are usefully employed as the solid component.

In Table III, the calcined coke (1) obtained according to the invention is compared in its characteristics with standard petro-coke (2) and with pitch coke obtained from a horizontal chamber furnace (3).

For pitch coke made of standard, not purified hard pitch it has an unusually low expansion coefficient and a low anisotropic coefficient.

The formed salts like all other ash-forming substances remain in the particular distillation residue during tar processing, thus in the normal pitch, hard pitch or pitch coke.

In principle, all carbon materials are usable in process step a), and good results are obtained particularly with the products of pyrolysis from coal, mineral oil or wood, such as pitch and coke.

In order to produce such connecting pieces, the surfaces of the carbon fibers are initially activated by oxidation and then coated with a coating medium preferably selected from wax, pitch, natural resins or thermoplastic or thermoset polymers, before the fibers obtained are mixed with coke, pitch and possibly additives and the mixture obtained is molded into a green part which is then carbonized and finally graphitized.

For example, pitch coke, metallurgical coke or petroleum coke, in particular needle coke, can be used as the coke, while pitch is preferably used as the binder.

The method of claim 1, further comprising keeping said form bodies at said pressing temperature for a duration of up to six hours, whereby said range may vary up to 50° C. below said 460° C. and up to 50° C. above said 590° C. The method of claim 1, further comprising heating said form bodies to a temperature within the range of 640° C. to 100° C. The method of claim 1, wherein said first component comprises at least on ingredient selected from the group consisting of sand, phosphates, metal oxides, ores, lime, metals, blast furnace dust, steel mill dust, breeze, petrol coke, pitch coke, low volatile bituminous hard coal, and wherein said second binder component comprises at least one ingredient selected from the group consisting of bituminous materials, asphalts, tars, pitches, and cracked bitumen.

Both are made from coked pitch fibers.

This anisotropy is very strongly pronounced in carbon and graphite felts which consist of coked pitch fibers.

The coked pitch inside the shell has to fulfill the task of a good binder coke since high strength requirements are made on the carbon shell.

In contrast to the known alkylating pitches however, the coke residue according to the Conradson method is increased and single phase mesophase pitch is formed during thermal treatment as is the case in hydrogenated pitches.