Show metadata Hide metadata

(19)

(11)

2 214 365

(13)

(51)

IPC

(21) (22)

Application

2002116619/12, 2002-06-20

(24)

Start date

2002-06-20

(22)

Actual filing date

2002-06-20

(45)

Published

2003-10-20

(72)

Inventor

Kropachev V.B.Smirnova M.A.Kladova N.V.Jastrebova G.M.

(73)

Holder

Kropachev Vladimir BorisovichSmirnova Margarita AleksandrovnaKladova Natal'Ja VladimirovnaJastrebova Galina Mikhajlovna

METHOD OF PRODUCTION OF ALUMINUM SULFATE Russian patent published in 2003 - IPC

Abstract RU 2214365 C1

FIELD: technology of inorganic substances; production of aluminum sulfate used as coagulant for purification of drinking and waste water; production of catalysts and adsorbents. SUBSTANCE: proposed method includes decomposition of aqueous suspension of sulfuric acid aluminum hydroxide at molar ratio of Al₂O₃:SO₃=1: (2-2.6) and content of Al₂O₃. in reaction mass equal to 18-20%. Sulfuric acid is proportioned at two stages: at first stage, 10- 20% of total amount of sulfuric acid is proportioned at rate of 0.1-0.3 l/min per 10 kg of Al₂O₃; remaining amount is proportioned at second stage at rate of 0.6-0.9 l/min Al₂O₃ for 20- 30 min, after which crystallization is performed. EFFECT: reduction of time required for performing process; improved quality of aluminum sulfate. 5 cl, 1 tbl

Similar patents RU2214365C1

Title	Year	Author	Number
METHOD OF PREPARING CATALYST FOR ANILINE SYNTHESIS	1995	Kladova Natal'Ja Vladimirovna Jastrebova Galina Mikhajlovna Kropachev Vladimir Borisovich Smirnova Margarita Aleksandrovna Racheva Margarita Aleksandrovna	RU2093262C1
METHOD FOR PRODUCING ACTIVATED ALUMINA	1996	Kropachev Vladimir Borisovich Smirnova Margarita Aleksandrovna Racheva Margarita Aleksandrovna Kladova Natal'Ja Vladimirovna Jastrebova Galina Mikhajlovna	RU2097328C1
METHOD OF DIPHENYLAMINE SYNTHESIS	1993	Belosludtsev Vjacheslav Mikhajlovich Kropachev Vladimir Borisovich Smirnova Margarita Aleksandrovna Racheva Margarita Aleksandrovna Kladova Natal'Ja Vladimirovna Jastrebova Galina Mikhajlovna	RU2060989C1
METHOD OF PREPARING CATALYST FOR ANILINE SYNTHESIS	1995	Kladova Natal'Ja Vladimirovna Borisova Tat'Jana Vladimirovna Korobko Larisa Nikolaevna Jastrebova Galina Mikhajlovna Padalitsa Vera Aleksandrovna Kropachev Vladimir Borisovich Belosludtsev Vjacheslav Mikhajlovich Racheva Margarita Aleksandrovna Slivnitsin Nikolaj Arkad'Evich Bezdomnikov Sergej Anatol'Evich Popov Boris Nikolaevich Pogorelov Valentin Viktorovich Smirnova Margarita Aleksandrovna	RU2102138C1
METHOD OF PRODUCING GRANULATED ACTIVE ALUMINIUM OXIDE WITH BIDISPERSE POROUS STRUCTURE	1993	Borisova Tat'Jana Vladimirovna Labenskaja Elena Petrovna Jastrebova Galina Mikhajlovna	RU2069177C1
METHOD FOR PREPARING MODIFIED ALUMINUM SULFATE	2005	Alekseeva Galina Nikolaevna Shipkova Natal'Ja Leonidovna Borozentseva Valentina Vladimirovna Strekalov Aleksandr Ivanovich Tonkov Leonid Ivanovich Rjabinin Pavel Vladimirovich	RU2291108C1
METHOD OF SYNTHESIS OF ALUMINIUM SULFATE CRYSTAL HYDRATE	1998	Shapkin M.A. Popov V.L. Bukseev V.V. Mil'Berger T.G. Orlov E.P. Zubkov V.Ja.	RU2152356C1
METHOD OF PREPARING ALUMOAMMONIUM ALUM	1999	Uklonskij I.P. Denisenkov V.F. Il'In A.N. Davydov N.A. Fomin V.K.	RU2144503C1
METHOD OF PRODUCING GRANULATED ALUMINUM SULFATE	2000	Gavrilov M.I.	RU2181696C2
METHOD OF PRODUCTION OF ALUMO-IRON COAGULANT	2004	Alekseeva G.N. Tonkov L.I. Shipkova N.L. Borozentseva V.V. Galkin E.A.	RU2264352C1

RU 2 214 365 C1

Authors

Kropachev V.B.

Smirnova M.A.

Kladova N.V.

Jastrebova G.M.

Dates

2003-10-20—Published

2002-06-20—Filed