Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1977-12-01
1979-06-05
Hart, Charles N.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
210 67, 210 68, 210 75, 210 76, 208 8LE, B01D 4100
Patent
active
041573056
ABSTRACT:
A process for filtering molten coal is provided. The process comprises the steps of providing a filter, passing a stream of molten coal which includes some solid material against said filter and filtering the solid material so as to form a filter cake on and to pass a filtrate through said filter, directing a stream of inert gas against said filter cake so as to dry the same to a predetermined low moisture content, centrifuging said dried filter cake off said filter, separating from the filter cake a fraction composed of fine particles, adding said separated fine particles to a stream of molten coal upstream of said filter, and passing said stream of molten coal and separated fine particles against said filter, whereby said fine particles act as a filter aid for the filtration of the molten coal. The process can also comprise adding calcium oxide or an inorganic salt to a stream of molten coal whereby the added compound acts as a filter aid, and subsequently recovering the added compound and again adding it to a stream of another coal.
REFERENCES:
patent: 1112976 (1914-10-01), Burks
patent: 1830962 (1931-11-01), Read
patent: 1864856 (1932-06-01), Pier et al.
patent: 1874972 (1932-08-01), Hall
patent: 2385431 (1945-09-01), Vose
patent: 2537759 (1951-01-01), Hersberger
patent: 2579946 (1951-12-01), McClain
patent: 3138551 (1964-06-01), Jones
patent: 3190449 (1965-06-01), Muller
patent: 3233734 (1966-02-01), Muller
patent: 3341447 (1967-09-01), Bull
patent: 3349918 (1967-10-01), Yasuhiko
patent: 3550774 (1970-12-01), Hirs
patent: 3808119 (1974-04-01), Bull et al.
patent: 3870632 (1975-03-01), Erskine
patent: 3890224 (1975-06-01), Weiss
patent: 4046690 (1977-09-01), Rodgers
Hackh's Chemical Dictionary, McGraw-Hill Book Company, 1969, 615.
Chemap AG
Hart Charles N.
Striker Michael J.
Therkorn Ernest G.
LandOfFree
Method of filtering molten coal does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of filtering molten coal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of filtering molten coal will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1707513