Published August 3, 1990 | Version v1
Patent Metadata-only

Process and device for liquid organic waste processing by sulfuric mineralization

Creators

Description

In a chemical reactor containing sulfuric acid are introduced the liquid waste and nitric acid at a controlled flow rate for carbonization of the waste and oxidation of carbon on sulfur dioxide, formed during carbonization, regenerating simultaneously sulfuric acid. Optical density of the liquid is monitored to stop liquid waste feeding above a set-point. The liquid waste can be an organic solvent such as TBP

Availability note (English)

Available from Institut National de la Propriete Industrielle, Paris (France).

Abstract (French)

On introduit dans le reacteur contenant de l'acide sulfurique le dechet liquide a traiter et de l'acide nitrique a des debits tels que l'on realise dans le reacteur une carbonisation par l'acide sulfurique du dechet liquide introduit, et une oxydation du carbone et du SO2 formes lors de la carbonisation en regenerant simultanement l'acide sulfurique. On mesure en continu la densite optique du milieu liquide pour interrompre l'alimentation en dechet liquide lorsque la teneur du milieu liquide depasse une valeur de consigne. Le dechet liquide peut etre un solvant organique tel que le phosphate de tributyle

Additional details

Additional titles

Original title (French)
Procede et dispositif de traitement de dechets organiques liquides par mineralisation sulfurique

Publishing Information

Imprint Pagination
22 p.
IPC:
Int. Cl. G21f9/06; A61l11/00.
IPC
Int. Cl. G21f9/06; A61l11/00.
Patent number
FR patent document 2642563/A/

INIS

Country of Publication
France
Country of Input or Organization
France
INIS RN
22029631
Subject category
S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
CARBONIZATION; FLOW RATE; LIQUID WASTES; MINERALIZATION; OXIDATION; RADIOACTIVE WASTE PROCESSING; SULFURIC ACID; TBP
Descriptors DEC
BUTYL PHOSPHATES; CHEMICAL REACTIONS; DECOMPOSITION; ESTERS; HYDROGEN COMPOUNDS; INORGANIC ACIDS; INORGANIC COMPOUNDS; MANAGEMENT; ORGANIC COMPOUNDS; ORGANIC PHOSPHORUS COMPOUNDS; OXYGEN COMPOUNDS; PHOSPHORIC ACID ESTERS; SULFUR COMPOUNDS; WASTE MANAGEMENT; WASTE PROCESSING; WASTES

Optional Information

Secondary number(s)
FR patent application 8901031.