Show metadata Hide metadata

(19)

(11)

2 102 321

(13)

(51)

IPC

(21) (22)

Application

96103795/25, 1996-02-26

(22)

Actual filing date

1996-02-26

(45)

Published

1998-01-20

(72)

Inventor

Zolotovskij B.P.Bujanov R.A.Grunval'D V.R.Demin V.V.Murin V.I.Ivchenko A.M.Sajfullin R.A.Bukhtijarova G.A.

(73)

Holder

Vserossijskij Nauchno-Issledovatel'Skij Institut Prirodnykh Gazov I Gazovykh TekhnologijInstitut Kataliza Im. G.K.Boreskova Ran

METHOD FOR PRODUCING SPHERICAL ALUMINA Russian patent published in 1998 - IPC

Abstract RU 2102321 C1

FIELD: non-ferrous metallurgy; aluminium production. SUBSTANCE: oxygen-containing compound of formula Al₂O₃•nH₂O, wherein 0.25<n<2.0, are subjected to mechanico-chemical activation treatment. Semi-finished product is continuously fed into granulator. Resulting granules are discharged onto conveyor which passes through chamber, in which predetermined partial pressure of water vapor is maintained within range of temperatures 25-100 C for 1-5 h. Granules thus-treated are subjected to drying in drier, followed by calcination in air flow. Calcination is effected at volume speed from 500 to 3000 h^-1 and at temperature 330-900 C for 1-6 h. Mechanico-chemical activation treatment is carried out by subjecting material to impact effects in disintegrator, particles colliding with each other and with disintegrator rotor at velocity 80-200 m/sec. EFFECT: higher quality of alumina. 4 cl, 2 tbl

Similar patents RU2102321C1

Title	Year	Author	Number
METHOD OF PRODUCING SPHEROID-SHAPED ALUMINIUM OXIDE GRANULES	1996	Zolotovskij B.P. Bukhtijarova G.A. Bujanov R.A. Murin V.I. Grunval'D V.R. Efremova L.V.	RU2096325C1
METHOD OF SPHERICAL ALUMINIUM OXIDE PRODUCTION	2002	Polubojarov V.A. Korotaeva Z.A. Ehunap O.A. Karpan V.V. Burylin S.Ju.	RU2209182C1
ADSORBENT-DESICCANT AND PREPARATION METHOD THEREOF	2010	Glazyrin Aleksej Vladimirovich Isupova Ljubov' Aleksandrovna Danilevich Vladimir Vladimirovich Babenko Vladimir Semenovich Molchanov Viktor Viktorovich Kharina Irina Valer'Evna Krugljakov Vasilij Jur'Evich Noskov Aleksandr Stepanovich Parmon Valentin Nikolaevich	RU2455232C2
METHOD OF AFTERPURIFICATION OF TAIL GASES	1995	Morgun L.V. Tsybulevskij A.M. Murin V.I. Filatova O.E.	RU2088520C1
NITROUS OXIDE PRODUCTION CATALYST AND PROCESS	2002	Mokrinskij V.V. Noskov A.S.	RU2214306C1
METHOD OF PRODUCING ALUMINOOXIDE CATALYST FOR ISOLATION OF ACID GASES BY KLAUSS PROCESS	1992	Borisova T.V. Zolotovskij B.P. Balashov V.A. Bujanov R.A. Demin V.V. Ivchenko A.M. Ljutikov V.S.	RU2048908C1
METHOD OF PREPARING SPHERICAL ACTIVE ALUMINIUM OXIDE	1994	Korjabkina N.A. Shkrabina R.A. Ismagilov Z.R. Krasil'Nikova V.A.	RU2080293C1
CATALYST OF OBTAINING ELEMENT SULPHUR IN CLAUS PROCESS, METHOD OF ITS PREPARATION AND METHOD OF CARRYING OUT CLAUS PROCESS	2012	Isupova Ljubov' Aleksandrovna Kovalenko Ol'Ga Nikolaevna Glazyrin Aleksej Vladimirovich Danilevich Vladimir Vladimirovich Parmon Valentin Nikolaevich Mitjushov Aleksej Aleksandrovich Vedrov Vladimir Nikolaevich Suslikova Natal'Ja Mikhajlovna Lebedev Jurij Vladimirovich Gorshkova Tamara Aleksandrovna	RU2527259C2
METHOD OF PREPARING GRANULATED COPPER OXIDE TOTAL-OXIDATION CATALYST	1995	Sazonov V.A. Shkrabina R.A. Aleksandrov V.Ju. Ismagilov Z.R. Korjabkina N.A.	RU2085284C1
METHOD FOR PREPARATION OF CATALYST FOR PRODUCTION OF SULFUR FROM HYDROGEN SULFIDE	1992	Ismagilov Z.R. Shkrabina R.A. Dobrynkin N.M. Korjabkina N.A. Khajrulin S.R. Shcherbilin V.B.	RU2035221C1

RU 2 102 321 C1

Authors

Zolotovskij B.P.

Bujanov R.A.

Grunval'D V.R.

Demin V.V.

Murin V.I.

Ivchenko A.M.

Sajfullin R.A.

Bukhtijarova G.A.

Dates

1998-01-20—Published

1996-02-26—Filed