Global Patent Index - EP 1016326 A1

EP 1016326 A1 2000-07-05 - PROCESS AND APPARATUS FOR THE PARTITIONING AND THERMAL TREATMENT OF HETEROGENEOUS FEEDSTOCK

Title (en)

PROCESS AND APPARATUS FOR THE PARTITIONING AND THERMAL TREATMENT OF HETEROGENEOUS FEEDSTOCK

Title (de)

VERFAHREN UND VORRICHTUNG ZUM AUFTRENNEN UND THERMISCHE BEHANDLUNG VON HETEROGENEN EINSATZ

Title (fr)

PROCEDE ET DISPOSITIF DE SEPARATION ET DE TRAITEMENT THERMIQUE DE CHARGES HETEROGENES

Publication

EP 1016326 A1 (EN)

Application

EP 97950951 A

Priority

  • US 9723021 W
  • US 76452596 A

Abstract (en)

[origin: CA2274540A1] A novel process and apparatus for the thermal partitioning of heterogeneous feedstock (11) for the production of a metal product, a glass ceramic product and a gaseous product. The process includes the capability for thermal treatment of hazardous waste as defined by the Environmental Protection Agency (EPA) which also contains radioactive isotopes in some cases (mixed waste as defined by the Department of Energy) and the production of stable long-lived products as a result of treatment. More specifically, this invention relates to a novel process and apparatus whereby an input feed stream (9) of a widely heterogeneous nature in the descriptors of physical form, combustibility, chemical content, and particle size and contaminated with varying concentrations of hazardous components and/or radioisotopes is treated in a direct current graphite electrode arc melter (4) with a contiguous thermal oxidizing reactor (5) for the production of a metal product, a basalt-like glass ceramic product and a fully combusted offgas. The apparatus described incorporates an offgas fast quench configuration (17) for the minimization of dioxin formation and subsequent ease of cleansing of the offgas stream.

IPC 1-7 (main, further and additional classification)

H05B 7/00; A62D 3/00; F23G 5/08

IPC 8 full level (invention and additional information)

F23G 5/00 (2006.01); F23G 5/02 (2006.01); F23G 5/033 (2006.01); F23G 5/08 (2006.01); F27D 11/08 (2006.01); H05B 7/00 (2006.01); H05B 7/18 (2006.01)

CPC (invention and additional information)

Y02E 20/12 (2013.01)

Citation (search report)

See references of WO 9827790A1

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

AU 5381998 A 19980715; BR 9714402 A 20000418; CA 2274540 A1 19980625; CA 2274540 C 20051206; CN 1244332 A 20000209; EP 1016326 A1 20000705; JP 2001506739 A 20010522; KR 20000069428 A 20001125

INPADOC legal status


2003-01-02 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20020702

2000-07-05 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19990705

2000-07-05 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE