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PATENT APPLICATION PUBLICATION
INDIA
Date of filing of Application: 28/09/2001
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Application No.: 1011/DEL/2001
Publication Date:09/06/2006
(54) Title of the Invention: “ A process for the preparation of carbon refractories from the spent cathodes of
aluminium smelthing plant”
(51) International Classification : C 01 B 31/00
(31) Priority Document No.
NA
:
(32) Priority Date : NA
(33) Name of priority country NA
(86) International application No. : NA
Filing Date : NA
(87) International Publication No. : NA
(61) Patent of Addition to
Application No.
: N.A.
(62) Divisional to Application No. : NIL
Filed On : N.A.
Total No. of pages : 07
(71) Name of Applicant :
Council of Scientific &Industrial
Research.
Address of the Applicant: Rafi Marg, new
Delhi – 110001.
(72) Name of the Inventor:
Bimanranjan Mazumder
(57) Abstract: A process described, which after decontaminating rejected cathode blocks from aluminium
plant is converted into fine free flowing graphite crystallites with average particle size 20 micro-meter, and
these graphite powder after bonding with a clay based refractory mixed fired and converted into graphite-
refractories. These carbon-refractories can be used in high temperature metallurgical processes.
The Patent Office Journal 09/06/2006 11106
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