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Application filed by Наталія Павлівна Алексєєва, Наталия Павловна Алексеева, Борис Іванович Мельников, Борис Иванович Мельников, Євген Олександрович Гандзюк, Евгений Александрович Гандзюк, Валентина Павлівна Запорожець, Валентина Павловна Запорожец, Микола Миколайович Сидорук, Николай Николаевич Сидорук, Володимир Миколайович Яковенко, Владимир Николаевич Яковенко, Володимир Андрійович Балаушко, Владимир Андреевич Балаушко, Родіон Омельянович Мельничук, Родион Емельянович Мельничук, Ірина Володимирівна Пушкар, Ирина Владимировна ПушкарfiledCriticalНаталія Павлівна Алексєєва
Priority to UA2000052519ApriorityCriticalpatent/UA40801A/en
Publication of UA40801ApublicationCriticalpatent/UA40801A/en
A process for preparation of the sulfate catalyst includes synthesis of carrier, which is carried out in the alkaline medium at pH >7 and temperature > of 30 °C. The carrier at the stage of mixing with active constituents is located only in the acid medium at pH < 7. To the catalyst mixture the worked out vanadium-containing catalyst is added in amount of 10- 95% of the weight of fresh portion of carrier.
UA2000052519A2000-05-042000-05-04method of obtaining the sulfate catalyst
UA40801A
(en)
Oxidation process for preparing the intermediate 6.alpha.,9.alpha.-difluoro-11.beta.,17.alpha.-dihydroxy-16.alpha.-methyl-androst-1,4-dien-3-one 17.beta.-carboxylic acid