Liquid purification or separation – Processes – Ion exchange or selective sorption
Patent
1986-11-05
1988-05-03
Hruskoci, Peter
Liquid purification or separation
Processes
Ion exchange or selective sorption
34 9, 34 12, 34 36, 44620, 209 3, 209 5, 209 10, 209 11, 210667, 210692, 210694, 210710, 210769, 210806, C02F 128
Patent
active
047418370
ABSTRACT:
For the purpose of increasing the efficiency during drying of brown coals having a high water content and for the purpose of facilitating the purification of process waste water resulting in a drying process according to Fleissner it is proposed to spray hot water onto the raw coal and to separate the proportion in fine grain having a maximum grain size of 5 mm, preferably of 1 mm. In the following, the proportion in fine grain is subjected to an adsorption stage (5), noting that after a reaction time of at least 1 min, preferably of 2 to 5 min, a major portion of the soluble substances burdening the waste water becomes adsorbed on this fine grain. Subsequently, the waste water is further purified after a flocculating step in a flocculating reactor (6) and after a separating step (8) for separating solid matter, for which purpose can be used sand filters (10), adsorbing resins and activated carbon. The separated process water can be used as feed water for a steam production in a combustion plant (13) and be partially used for rinsing the sand filters (10).
REFERENCES:
patent: 3763040 (1973-10-01), Timpe et al.
patent: 4303531 (1981-12-01), Kawabata et al.
Fohl Jaroslav
Schweizer Michael
Tessmer Gero
Hruskoci Peter
Voest-Alpine Aktiengesellschaft
LandOfFree
Process for drying brown coal of high water content does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for drying brown coal of high water content, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for drying brown coal of high water content will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1504472