Patents Assigned to Houilleres du Bassin du Nord et, Due Pas-de-Calais
  • Patent number: 4197160
    Abstract: Process for the preparation of a moulded coke according to which agglomerates are heated in a non-oxidizing atmosphere, this process being characterized in that the agglomerates are prepared by compression from a paste containing:from 60 to 85% by weight of non-cokable coals,from 10 to 30% by weight of agglutinating coalshaving a swelling index greater than 2, andfrom 5 to 13% by weight of binder,which paste, when heated at 6.degree. C. per minute in the ARNU dilatometer gives a contraction of between 3 and 15%, preferably between 5 and 10% and a swelling of zero or near 0, and in that the agglomerates are heated in a non-oxidizing atmosphere from a temperature of about 100.degree. C. to a temperature of at least about 700.degree. C., with a rate of heating of between 7 and 14.degree. C. per minute.
    Type: Grant
    Filed: March 21, 1978
    Date of Patent: April 8, 1980
    Assignee: Houilleres du Bassin du Nord et, Due Pas-de-Calais
    Inventors: Roger Degrave, Maurice Marchasson