FIELD: waste disposal.
SUBSTANCE: invention is dealing with processing of petrochemical production wastes and, more specifically, with utilization of sludges formed in production of polyethers. A method is provided residing in that sludge is treated with extractant followed by separation into liquid and solid phases. Invention is characterized by using water or aqueous solution of potassium phosphates as extractant. In the latter case, solid phase is composed of bentonite and liquid one emulsion of a polyether on aqueous potassium phosphate solution. Liquid phase is separated in separator into polyether and aqueous phase. The former is dried and filtered and the latter subjected to crystallization and subsequent drying of potassium phosphates.
EFFECT: increased recovery of polyethers and utilized previously rejected waste.
1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PROCESSING SOLID WASTES AND SLUDGE | 2014 |
|
RU2579809C2 |
| PROCESS FOR SOLID WASTE OR SLURRY DISPOSAL | 2006 |
|
RU2323789C2 |
| METHOD OF PROCESSING OF SOLID WASTES OR SLIMES | 2003 |
|
RU2225762C1 |
| METHOD FOR OBTAINING BIOLOGICALLY ACTIVE SUBSTANCES | 2021 |
|
RU2760481C1 |
| METHOD OF REGENERATING OIL AND SCALE CONTAINING WASTE | 0 |
|
SU1502905A1 |
| PROCESSING METHOD OF UNCONDITIONED IRON- AND ZINC-CONTAINING METALLURGICAL WASTES | 2009 |
|
RU2404271C1 |
| METHOD OF SEPARATING OIL FROM OIL SLUDGE | 2024 |
|
RU2827618C1 |
| METHOD OF OBTAINING POTASSIUM CHLORIDE | 2013 |
|
RU2556939C2 |
| PROCESS FOR HANDLING PRODUCTS OF HYDRONIZATION OF COAL | 0 |
|
SU1071629A1 |
| METHOD OF COMPLEX VEGETABLE FEED PROCESSING | 2006 |
|
RU2344166C2 |
