Recovery process for aqueous waste streams in adipic acid systems
Patent
·
OSTI ID:6217642
By-product or waste streams from adipic acid plants which contain adipic acid, glutaric acid, succinic acid, nitric acid and catalyst values of copper and vanadium are treated to substantially recover all the components. The process consists of esterifying the dibasic acids with an alcohol, such as normal butanol, which creates esters that are substantially immiscible in the aqueous solution, allowing the organic esters to form a separate layer from the aqueous phase in which the metal values are retained, recovering the organic layer containing the esterified dibasic acids and thereafter re-using the aqueous solution containing the catalyst values in the adipic acid process.
- Assignee:
- El Paso Products Co.
- Patent Number(s):
- US 4105856
- OSTI ID:
- 6217642
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320305* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
ADIPIC ACID
ALCOHOLS
CARBOXYLIC ACIDS
CHEMICAL INDUSTRY
CHEMICAL REACTIONS
COPPER
DICARBOXYLIC ACIDS
ELEMENTS
ESTERIFICATION
HYDROXY COMPOUNDS
INDUSTRY
LIQUID WASTES
MANAGEMENT
MATERIALS RECOVERY
METALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
PROCESSING
PRODUCTION
RECOVERY
RECYCLING
TRANSITION ELEMENTS
VANADIUM
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
320305* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
ADIPIC ACID
ALCOHOLS
CARBOXYLIC ACIDS
CHEMICAL INDUSTRY
CHEMICAL REACTIONS
COPPER
DICARBOXYLIC ACIDS
ELEMENTS
ESTERIFICATION
HYDROXY COMPOUNDS
INDUSTRY
LIQUID WASTES
MANAGEMENT
MATERIALS RECOVERY
METALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
PROCESSING
PRODUCTION
RECOVERY
RECYCLING
TRANSITION ELEMENTS
VANADIUM
WASTE MANAGEMENT
WASTE PROCESSING
WASTES