Patenton — panteon of patents

(19)

RU

(11)

2 048 439

(13)

C1

(51)

IPC

(21) (22)

Application

5019011/26, 1991-12-25

(22)

Actual filing date

1991-12-25

(45)

Published

1995-11-20

(72)

Inventor

Filippov A.P.Malikov V.A.Tselishchev G.K.Kuraeva E.P.Kunitskij V.Ja.Rabotjagin V.A.Fedorov N.N.

(73)

Holder

Filippov Aleksandr PavlovichMalikov Viktor AlekseevichTselishchev Georgij KonstantinovichKuraeva Ekaterina PetrovnaKunitskij Vladimir JakovlievichRabotjagin Vladimir AfanasievichFedorov Nikolaj Nikolaevich

METHOD OF STRONTIUM CONCENTRATE PRODUCING Russian patent published in 1995 - IPC

Abstract RU 2048439 C1

FIELD: chemical technology of inorganic compounds. SUBSTANCE: strontium concentrate is obtained after nitric acid decomposition of apatite concentrate. Calcium nitrate solution containing strontium nitrate is subjected for conversion with ammonium carbonate for two stages. At the first stage treatment is carried out for 15-30 min up to the residual calcium concentration in solution 3-8 g/dm3. After calcium carbonate separation filtrate is treated with ammonium carbonate up to pH 7.0-9.0. Two-stage conversion ensures to precipitate 61.9-70.5% strontium to concentrate. EFFECT: improved method of producing. 2 tbl

Similar patents RU2048439C1

Title Year Author Number
METHOD OF PRODUCTION OF PURIFIED CALCIUM CARBONATE 1992
  • Filippov A.P.
  • Goncharov A.M.
  • Maksimov A.G.
  • Tselishchev G.K.
  • Kuraeva E.P.
  • Goncharov L.M.
 RU2027672C1
METHOD OF PROCESSING OF CALCIUM NITRATE TETRAHYDRATE IN AZOPHOSKA MANUFACTURE 1991
  • Smol'Nyj V.M.
  • Fedorov V.D.
  • Provorova A.M.
  • Arzhatkin A.M.
  • Ivanov V.A.
  • An V.V.
  • Kuzin S.N.
  • Tauk M.V.
 RU2031840C1
METHOD OF PRODUCTION OF STRONTIUM CARBONATE 2004
  • Tatarinov A.N.
  • Monastyrev Ju.A.
  • Izovskaja L.N.
  • Kiseleva T.G.
  • Vilkaj E.A.
 RU2254296C1
METHOD OF PROCESSING RARE-EARTH ELEMENTS CONCENTRATE 2015
  • Osmak Andrej Valerevich
  • Nikolaeva Irina Ivanovna
  • Gorshkova Nadezhda Vasilevna
 RU2595672C1
METHOD OF PRODUCTION OF CALCIUM CARBONATE 1998
  • Dmitrevskij B.A.
  • Treushchenko N.N.
  • Sukmanov V.E.
  • Grosheva L.P.
  • Tauk M.V.
  • Samsonov Ju.K.
  • Sennikovskij S.N.
 RU2146226C1
METHOD OF THE PREPARATION OF STRONTIUM NITRATE 0
  • Golub A.M.
  • Mulyarchuk I.F.
  • Vojtko I.I.
 SU222346A1
STRONTIUM CARBONATE MANUFACTURE PROCESS 2002
  • Kolokol'Nikov V.A.
  • Titov V.M.
 RU2223223C1
METHOD OF EXTRACTING RARE EARTH METALS FROM NITROPHOSPHATE SOLUTION IN NITRIC ACID PROCESSING OF APATITE CONCENTRATE 2014
  • Os'Mak Andrej Valer'Evich
  • Nikolaeva Irina Ivanovna
  • Bazjukina Tat'Jana Viktorovna
  • Maklashina Elena Aleksandrovna
 RU2559476C1
CALCIUM CARBONATE PRODUCTION PROCESS (OPTIONS) 2005
  • Tauk Matti Valdekovich
  • Nikolaeva Irina Ivanovna
  • Gorshkova Nadezhda Vasil'Evna
  • Cherkasova Tat'Jana Nikolaevna
  • Samsonov Jurij Konstantinovich
  • Lysenko Evgenij Vladimirovich
  • Bogdanov Vladimir Mikhajlovich
  • Chigirev Anatolij Ivanovich
 RU2281921C1
METHOD OF PURIFICATION OF STRONTIUM NITRATE FROM BARIUM IMPURITIES IN TECHNOLOGY OF STRONTIUM CARBONATE PRODUCTION 1993
  • Aksenov A.A.
  • Boldyrev V.K.
  • Denisov A.K.
  • Pankratov Ju.V.
  • Tolkachev V.A.
 RU2024433C1

RU 2 048 439 C1

Authors

Filippov A.P.

Malikov V.A.

Tselishchev G.K.

Kuraeva E.P.

Kunitskij V.Ja.

Rabotjagin V.A.

Fedorov N.N.

Dates

1995-11-20—Published

1991-12-25—Filed

read Similar patents