METHOD OF REMOVING ORGANIC IMPURITIES FROM PHENOL

• Main Authors: MALINOVSKIJ A.S, PETROV JU.I, ZAKOSHANSKIJ V.M, TOSHCHEV V.D, TSEDERBAUM V.G, VASIL'EVA I.I
• Format: Patent
• Language: English; Russian
• Published: 20.05.1998
• Edition: 6
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; APPARATUS THEREFOR; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; GENERAL METHODS OF ORGANIC CHEMISTRY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; THEIR RELEVANT APPARATUS; TRANSPORTING

FIELD: organic synthesis. SUBSTANCE: phenol resulting from distilling off light and heavy products of combined synthesis of acetone and phenol and impurity containing mesityl oxide $$$-methylstyrene, 2-methylbenzofuran and other carbonyl compounds is continuously contacted with industrial synthetic zeolite containing alumosilicate catalyst at 120-200 C at atmospheric pressure or at pressure which corresponds to the state of liquid phenol at volumetric rates of 0.3-3.5 h $$$. The present invention affords conversion of mesityl oxide by at least 90% to attain service life of catalyst of 3 years without loss in catalyst active life. EFFECT: preparation of active and stable phenol purification catalyst.