Process for producing electrodes from carbonaceous particles and a boron source

Patent · Tue Sep 13 00:00:00 EDT 1988

OSTI ID:6729098

Sara, R V

A method is described of making an electric arc furnace graphite electrode comprising: (a) calcining a carbonaceous material selected form the group consisting of anthracite coal, bituminous coal, lignites, and nos. 2 and 3 cokes; (b) mixing the calcined carbonaceous material with pitch, a lubricant, and a boron source selected from the group consisting of elemental boron, boron carbide, silicon tetraboride, and iron boride, in an amount such that the boron content is from about 0.1 to about 5.0 percent by weight of the graphite electrode to form a mixture; (c) extruding the mixture into an electrode form; (d) and graphitizing the electrode form to provide a graphite electrode.

• Assignee: Union Carbide Corp., Danbury, CT
• Patent Number(s): US 4770825
• Application Number: TRN: 88-038646
• OSTI ID: 6729098
• Resource Relation: Patent File Date: Filed date 22 Jan 1987
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
42 ENGINEERING
ARC FURNACES
ELECTRODES
GRAPHITE
CHEMICAL PREPARATION
ANTHRACITE
BITUMINOUS COAL
BORON
BORON CARBIDES
CALCINATION
COKE
IRON BORIDES
LIGNITE
LUBRICANTS
PITCHES
SILICON BORIDES
BLACK COAL
BORIDES
BORON COMPOUNDS
BROWN COAL
CARBIDES
CARBON
CARBON COMPOUNDS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
DECOMPOSITION
ELECTRIC FURNACES
ELEMENTAL MINERALS
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
FURNACES
IRON COMPOUNDS
MATERIALS
MINERALS
NONMETALS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PYROLYSIS
SEMIMETALS
SILICON COMPOUNDS
SYNTHESIS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
360601* - Other Materials- Preparation & Manufacture
421000 - Engineering- Combustion Systems