New comprehensive indices for evaluating the quality of pitch and the principles of classification of pitches. [Magnitogorsk Integrated Iron and Steel Works-USSR]

Journal Article · Thu Jan 01 04:00:00 EST 1981 · Coke Chem. USSR (Engl. Transl.); (United States)

OSTI ID:6287721

Gaisarov, M G; Mochalov, V V

An attempt was made to select the minimum necessary number of indices by which may be evaluated the technological properties of pitch as a binder. These parameters include mutually correlated quantities, reflecting either the degree of condensation of the pitch (the content of the high-molecular fractions, the density, the coke cake yield, volatile matter yield, distillate to 360/sup 0/C, carbon-hydrogen ratio) or its rheological properties (viscosity, softening point). Using these criteria, statistical analysis was used to analyze the composition functions of coke-forming and plasticizing properties for ca 20 specimens from various plants with softening points of 65 to 90/sup 0/C. The results of the computations indicate that the relationship between the properties and composition in each group is significant and approaches the functional. The proposed pitch classification system is only a basis for discussion and requires refinement. 3 tables.

• OSTI ID: 6287721
• Journal Information: Coke Chem. USSR (Engl. Transl.); (United States), Journal Name: Coke Chem. USSR (Engl. Transl.); (United States) Vol. 12; ISSN COKCA
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010600* -- Coal
Lignite
& Peat-- Properties & Composition
BINDERS
CLASSIFICATION
DATA
DENSITY
DISTILLATES
EXPERIMENTAL DATA
INDUSTRY
INFORMATION
MATHEMATICAL MODELS
MATHEMATICS
MATTER
METAL INDUSTRY
MOLECULAR WEIGHT
NUMERICAL DATA
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PHYSICAL PROPERTIES
PITCHES
REGRESSION ANALYSIS
RHEOLOGY
SPECIFICATIONS
STATISTICS
VOLATILE MATTER