Coal filtration process and dewatering aids therefore
Patent
·
OSTI ID:7019557
This patent describes an improvement in a method for dewatering an aqueous slurry of solid coal particulates wherein the aqueous slurry contains between about 10 and 60 percent of solid coal particulates and a dewatering aid is added to the slurry followed by vacuum filtration thereof to produce a filter cake of the coal particulates. The improvement for lowering the water content of the filter cake comprises adding to the slurry prior to filtration an effective amount of a dewatering aid selected.
- Assignee:
- Sherex Chemical Co., Inc., Dublin , OH
- Patent Number(s):
- US 4892663; A
- Application Number:
- PPN: US 7279423A
- OSTI ID:
- 7019557
- Country of Publication:
- United States
- Language:
- English
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