Mineral oils: processes and products – By treatment of solid mineral – e.g. – coal liquefaction – etc. – Specified procedure to improve separation of solids from...
Patent
1994-03-21
1996-07-09
Pal, Asok
Mineral oils: processes and products
By treatment of solid mineral, e.g., coal liquefaction, etc.
Specified procedure to improve separation of solids from...
208424, 208 39, 208 41, C10G 100, C10C 100, C10C 104
Patent
active
055341373
ABSTRACT:
Described are novel processes for treating high-ash coal tars to produce coal tars which are suitable for distillation to form binder pitch. Preferred processes of the invention involve multi-stage centrifugations to reduce ash and preferably also quinoline insoluble levels. Processes of the invention also provide for the treatment of coal tar sludges to recover valuable coal tar distillate and dried, free-flowing coal related material having high fuel value.
REFERENCES:
patent: 4259171 (1981-03-01), Stadelhofer et al.
patent: 4436615 (1984-03-01), Boodman et al.
patent: 4517072 (1985-05-01), Cukier et al.
patent: 4640761 (1987-02-01), Mori et al.
patent: 4864942 (1989-09-01), Fochtman et al.
patent: 4961391 (1990-10-01), Mak et al.
patent: 4986895 (1991-01-01), Mori et al.
patent: 5128021 (1992-07-01), Romey et al.
Griggs E. Sean
Roder William R.
Hailey Patricia L.
Pal Asok
Reilly Industries Inc.
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