FIELD: method for production of alcohol-containing solvents based on waste from ethanol production from food-grade raw materials.
SUBSTANCE: claimed method includes reprocessing of etheraldehyde fraction of concentrate containing ethanol main admixtures from starch- and/or sugar-containing raw materials. Process is carried out in rectifier at vapor phase temperature in still of 60-90°C. Nitrosolvent is obtained by mixture sampling at 60-70°C. Degreasing solvent is obtained by mixture sampling at starting temperature in column top of 73°C or more when ethers are detected in distillate. Claimed nitrosolvent (degreasing solvent) contain (mass %): acetate-type ethers 10-30 (0.8-2.9); aliphatic alcohols 51-74 (87-89); acetaldehyde 5-9 (0.2-1.5), and water 8-10 (8-10).
EFFECT: simplified and economy method for reprocessing of waste from ethanol production; enhanced assortment of alcohol-containing solvents.
3 cl, 1 dwg, 3 ex, 3 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| FUSEL OIL-BASE MIXING SOLVENT | 2000 |
|
RU2174974C1 |
| METHOD FOR EXTRACTING ACETIC ESTERS WITH ALIPHATIC ALCOHOLS C@-C@ FROM AZEOTROPIC MIXTURES OF ESTER-ALCOHOL-WATER | 0 |
|
SU1659396A1 |
| NAIL ENAMEL REMOVER | 2001 |
|
RU2194492C1 |
| ALCOHOL PRODUCTION WASTE PROCESSING METHOD (OPTIONS) | 2004 |
|
RU2272018C1 |
| METHOD FOR RECTIFYING ALCOHOL-CONTAINING RAW | 2006 |
|
RU2322485C2 |
| METHOD AND APPARATUS FOR PRODUCING RECTIFIED ETHYL ALCOHOL | 2010 |
|
RU2475471C2 |
| METHOD OF PROCESSING ETHYL ALCOHOL HEAD FRACTION AND CONCENTRATE HEAD FRACTION | 2001 |
|
RU2183616C2 |
| METHOD OF SEPARATING ALCOHOL-CONTAINING MIXTURES | 1999 |
|
RU2149670C1 |
| METHOD OF SYNTHESIS OF BETULINOL DIACETATE | 1999 |
|
RU2150473C1 |
| CLEANING AGENT FOR CLEANING SOLID SURFACE | 1990 |
|
RU2010847C1 |
