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Method of preparing granulated activated alumina Patents

Language: Английский
Type: Invention
Number US 4166100 A
Request number: 909,977
Request date: May 26, 1978
patent.field.start_date:
Registration date: Aug 28, 1979
patent.field.request_publication_date:
Authors Vorobiev Yu.K. , Badaev B.N. , Ljubushko G.I. , Levitsky E.A. , Boreskov G.K. , Andrushkevich M.M. , Baum B.A. , Pakhomov N.A. , Khomyakova L.G. , Khramov A.E. , Rodionova N.A. , Isaev B.N. , Knyazev V.M. , Moroz E.M. , Erofeev V.N. , Druzhinin I.P. , Shkrabina R.A.
Affiliations
Abstract: The method of preparing granulated activated alumina consists in that alumina trihydrate is decomposed by bringing it in contact with a bed of a solid heat carrier having the temperature of 350° to 600° C., the contact time being from 0.05 to 0.5 second, to obtain a product of decomposition in the form of amorphous aluminium hydroxide. Said decomposition product is mixed with water into a suspension having the concentration of 100-500 g/liter, calculating with reference to alumin ium oxide, and hydrated at a temperature of 20°-100° C. vand the pH of 5 to 12 for 0.5 to 10 hours. The hydrated decomposition product is then treated with an acid, that can form water-soluble basic salts of aluminium, at a temperature of 20° to 150° C., granulated, dried at a temperature of 20° to 150° C., and calcined at a tempera ture of 400° to 600° C. The granulated activated alumina can be used as an adsorbing material, as a catalyst, or a support for active components in chemical and petrochemical industry.
Cite: Vorobiev Y.K. , Badaev B.N. , Ljubushko G.I. , Levitsky E.A. , Boreskov G.K. , Andrushkevich M.M. , Baum B.A. , Pakhomov N.A. , Khomyakova L.G. , Khramov A.E. , Rodionova N.A. , Isaev B.N. , Knyazev V.M. , Moroz E.M. , Erofeev V.N. , Druzhinin I.P. , Shkrabina R.A.
Method of preparing granulated activated alumina
Number: US4166100A, , Request number 909,977 from May 26, 1978 publication_identifier_short.rinz_identifier_type
Identifiers:
publication_identifier.rinz_identifier_type 32289098
publication_identifier.accession_number_identifier_type 1979:559778
publication_identifier.chemical_accession_number_identifier_type 91:159778
Name: Method of preparing granulated activated alumina