Способ получения активной гранулированной окиси алюминия
Patents
Language: |
Русский |
Type: |
Invention |
Number |
SU 615645 A1 |
Request number: |
2423499/22-02 |
Request date: |
Nov 9, 1976 |
patent.field.start_date: |
|
Registration date: |
Dec 23, 1986 |
patent.field.request_publication_date: |
|
Authors |
Хомякова Л.Г.
,
Воробьев Ю.К.
,
Шкрабина Р.А.
,
Левицкий Э.А.
|
Affiliations |
1 |
Boreskov Institute of Catalysis SB RAS
|
|
Granular Al2O3 is prepd. by hydration of less-hydrated O-contg. Al compds. (e.g., ρ-Al2O3) or an amorphous Al hydroxide at 20-80°, washing, plasticization with a mineral acid, granulation, drying, and calcination of the granules. In order to improve product quality, hydration is carried out at pH 5-7.9 for 0.5-6 h.