ENHANCED DROSS FEEDSTOCK

Title:

ENHANCED DROSS FEEDSTOCK

Document Type and Number:

Japanese Patent JP2023126860

Kind Code:

A

Abstract:

To provide improved handling and treatment of dross from aluminum recycling such that the dross can be more easily and efficiently handled.SOLUTION: The efficiency of roasting black dross can be improved by pre-processing the black dross before roasting. The black dross can be crushed and reconstituted into pellets having internal channels. The internal channels can be filled with additives designed to fully oxidize during the dross roasting process, enabling the internal channels to be open and gas to flow therethrough during the dross roasting process. The crushed black dross can be crushed to pieces below 10 mm and screened for large pieces prior to pelletizing to ensure consistent pellets. Optionally, an eddy current separator can remove some metallic aluminum from the crushed black dross prior to the pelletizing.SELECTED DRAWING: Figure 1

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Inventors:

DON ALLEN DOUTRE
GARY RICHARD HAY
JOCELYN ROSE CRACROFT

Application Number:

JP2023107001A

Publication Date:

September 12, 2023

Filing Date:

June 29, 2023

Export Citation:

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Assignee:

NOVELIS INC

International Classes:

C22B21/02; C22B7/00

Attorney, Agent or Firm:

Michiko Matsutani
Haruhiko Ema
Masayuki Shikimi

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