A method of producing technical anthracene from crude anthracene

Journal Article · Sat Nov 06 04:00:00 EST 1982 · Coke Chem. USSR (Engl. Transl.); (United States)

OSTI ID:5262935

Gurevich, B S; Aksenina, A A; Chevtaeva, L A; Sizova, E M; Nepokrytykh, V K; Barskii, V D

A process for the recovery of high grade anthracene (95-96%) suitable for conversion anthraquinone, from crude anthracene feedstocks has been developed. The new process is significantly more economical than other on-stream processes due to low consumption of feed stock, engineering simplicity and the use of low cost solvents. Crude feedstocks (70% anthracene, carbazole, phenanthrene, and 30% other polycyclic aromatic hydrocarbons) is extracted (100-150/sup 0/C) with solvent to remove high boiling aromatics and the anthracene (50%)-carbazole (40%) fraction is diluted with additional solvent and fractionated (minimum 24 plate column). The carbazol fraction is collected from the column bottom and the anthracene-solvent from the column top. Anthracene crystallizes on cooling and is recovered by centrifugation and drying. Solvent from each stage is recycled. A variety of solvents were evaluated, the best being solvent naphtha. Extraction and centrifugation temperatures and time, solvent-feedstock ratio (1:1), distillation diluent amounts (1:0.75) and temperature (to 348/sup 0/C) and crystallizaton conditions were optimized using the simplex plan and the latin square method.

• Research Organization: USSR
• OSTI ID: 5262935
• Journal Information: Coke Chem. USSR (Engl. Transl.); (United States), Journal Name: Coke Chem. USSR (Engl. Transl.); (United States) Vol. 6; ISSN COKCA
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010500* -- Coal
Lignite
& Peat-- Products & By-Products
ALDEHYDES
ALKANES
ANTHRACENE
ANTHRAQUINONES
AROMATICS
AZAARENES
AZOLES
BENCH-SCALE EXPERIMENTS
CARBAZOLES
CENTRIFUGATION
CHEMICAL FEEDSTOCKS
COAL TAR OILS
COMPARATIVE EVALUATIONS
CONDENSED AROMATICS
CRYSTALLIZATION
DISTILLATES
DISTILLATION
DRYING
ENERGY SOURCES
EXTRACTION
FOSSIL FUELS
FUELS
FUNCTIONAL MODELS
FURANS
FURFURAL
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
IMPURITIES
KEROSENE
LIQUID FUELS
MANAGEMENT
MATERIALS RECOVERY
MINERAL OILS
NAPHTHA
OILS
OPTIMIZATION
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM
PETROLEUM DISTILLATES
PETROLEUM FRACTIONS
PETROLEUM PRODUCTS
PHASE TRANSFORMATIONS
POLYCYCLIC AROMATIC HYDROCARBONS
PROCESS DEVELOPMENT UNITS
PROCESSING
PRODUCTION
PURIFICATION
PYROLYSIS PRODUCTS
PYROLYTIC OILS
QUANTITY RATIO
QUINONES
RECOVERY
RECYCLING
SEPARATION PROCESSES
SHALE OIL
SHALE OIL FRACTIONS
SOLVENT EXTRACTION
SOLVENT PROPERTIES
SYNTHETIC FUELS
TEMPERATURE DEPENDENCE
TIME DEPENDENCE
WASTE MANAGEMENT
WASTE PROCESSING