Back to results
US 4,287,069 AGranted
Process for the improved working up of effluent
AssigneeBayer Aktiengesellschaft
InventorsArtur Reischl, Kurt Mack, Friedhelm Sahlmen
Life of this patent
Estimating the term…
Abstract
The instant invention is directed to a process for the separation of aqueous sludges in the purification of effluents in purification plants, comprising: (a) mixing organic and/or inorganic aqueous sludges with ground monomer-free tolylene diisocyanate (TDI) distillation residues having a mean particle size of less than 2 mm; (b) removing the water from the resulting purified sludges; and (c) disposing of the purified sludges.
Claims9
A process for the separation of aqueous sludges in the purification of effluents in purification plants, comprising:
- (a) mixing organic and/or inorganic aqueous sludges with ground monomer-free tolylene diisocyanate (TDI) distillation residues having a mean particle size of less than 2 mm;
- (b) removing the water from the resulting purified sludges;
- and
- (c) disposing of the purified sludges.
1 more element
Dependencies are inferred from the claim text.