Briquetting of coke fines for phosphorus production

Journal Article · Wed Jul 20 00:00:00 EDT 1988 · J. Appl. Chem. USSR (Engl. Transl.); (United States)

OSTI ID:6187002

Shpaizer, E E; Klimova, L K; Mel'nik, A P; Egorov, A A

Large amounts of coke wastes have accumulated in phosphorus factories. For use as a carbonaceous reducing agent in phosphorus production this waste material should be agglomerated to the required size with satisfactory strength, with minimal consumption of energy and materials. The dependence of briquet strength on a number of important physicochemical factors is described by an equation obtained by least-squares computer analysis of experimental data. Addition of finely ground quartzite to the mixture raises the thermal stability of the briquets. The activation energy and order of overall interaction of phosphoric acid and the ash components of coke, E = 24.8 kJ/mole and n = 0.98, were found by the method of nonisothermal kinetics. Their results show that the reactions leading to increase of briquet strength occur at temperatures from 520 to 670 K, i.e., below the ignition point of coke. Therefore the briquets may be heat-treated in an oxidizing medium; this greatly simplifies the practical process of agglomeration of coke fines.

• OSTI ID: 6187002
• Journal Information: J. Appl. Chem. USSR (Engl. Transl.); (United States), Vol. 61:2; Other Information: Translated from Zh. Prikl. Khim.; 61: No. 2, 245-249(Feb 1988)
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
COKE
BRIQUETTING
PHOSPHORUS
PRODUCTION
REDUCING AGENTS
WASTE PRODUCT UTILIZATION
ACTIVATION ENERGY
AGGLOMERATION
ASH CONTENT
BINDERS
BRIQUETS
CHEMICAL REACTION KINETICS
COMPUTER CALCULATIONS
ENERGY EFFICIENCY
HEAT TREATMENTS
INDUSTRIAL WASTES
LEAST SQUARE FIT
MATERIALS RECOVERY
MECHANICAL PROPERTIES
PHOSPHORIC ACID
POROSITY
PRESSURE EFFECTS
QUARTZITES
SULFUR CONTENT
TEMPERATURE EFFECTS
EFFICIENCY
ELEMENTS
ENERGY
FABRICATION
FUELS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
KINETICS
MANAGEMENT
MAXIMUM-LIKELIHOOD FIT
METAMORPHIC ROCKS
MOLDING
NONMETALS
NUMERICAL SOLUTION
PROCESSING
REACTION KINETICS
RECOVERY
ROCKS
SOLID FUELS
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
320305* - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Industrial Waste Management
320303 - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Equipment & Processes