Patenton — panteon of patents

(19)

RU

(11)

2 073 695

(13)

C1

(51)

IPC

(21) (22)

Application

94015581/26, 1994-04-27

(22)

Actual filing date

1994-04-27

(45)

Published

1997-02-20

(72)

Inventor

Gerasimova L.G.Nikolaev A.I.Safonova L.A.Zhdanova N.M.Vetrova E.P.

(73)

Holder

Institut Khimii I Tekhnologii Redkikh Ehlementov I Mineral'Nogo Syr'Ja Kol'Skogo Nauchnogo Tsentra Ran

METHOD FOR PROCESSING OF ASH OF THERMAL POWER PLANTS FOR PRODUCTION OF FERRUM-CONTAINING PIGMENT FILLER Russian patent published in 1997 - IPC

Abstract RU 2073695 C1

FIELD: processing of ash of thermal power plants. SUBSTANCE: ash is treated by aqueous suspension, which contains 50-100 g/l of sulfuric or hydrogen chloride acid. The process is carried out at 50-75 C, precipitate is separated of liquid phase and suspended in water. Ferrum compound is added into said suspension (its quantity being 20-100 g/l as calculated for FeO) and allowed to stand at 70-90 C by supplying air within 5-10 h. The process is followed by filtration, washing and calcination. EFFECT: improved labour conditions. 2 cl, 1 tbl

Similar patents RU2073695C1

Title Year Author Number
METHOD OF SPHENE CONCENTRATE PROCESSING 1996
  • Maslova M.V.
  • Gerasimova L.G.
  • Vasil'Eva N.Ja.
  • Rybakova T.T.
  • Safonova L.A.
 RU2096331C1
METHOD OF PROCESSING SPHENE 1999
  • Gerasimova L.G.
  • Zhdanova N.M.
  • Okhrimenko R.F.
  • Vasil'Eva N.Ja.
  • Galinurova L.A.
 RU2150479C1
METHOD OF PROCESSING OF SPHENE CONCENTRATE 2000
  • Maslova M.V.
  • Gerasimova L.G.
  • Okhrimenko R.F.
  • Matveev V.A.
  • Majorov D.V.
  • Zhdanova N.M.
 RU2179528C1
METHOD OF OBTAINING TITANIFEROUS PRODUCT FROM SPHENE CONCENTRATE 2007
  • Gerasimova Lidija Georgievna
  • Nikolaev Anatolij Ivanovich
  • Shchukina Ekaterina Sergeevna
 RU2356837C1
METHOD OF PROCESSING OF LOPARITE CONCENTRATE 2000
  • Gerasimova L.G.
  • Kalinnikov V.T.
  • Majorov V.G.
  • Nikolaev A.I.
  • Sklokin L.I.
 RU2182887C2
METHOD OF PREPARING COAGULATION-FLOCCULATION REAGENT AND WATER TREATMENT PROCESS 1997
  • Petrova V.I.
  • Kasikov A.G.
  • Zakharov V.I.
  • Areshina N.S.
  • Zershchikova D.V.
 RU2131849C1
METHOD OF PROCESSING PHOSPHATE RARE-EARTH CONCENTRATE ISOLATED FROM APATITE 1998
  • Lebedev V.N.
  • Sergeeva S.D.
  • Masloboev V.A.
  • Lokshin Eh.P.
 RU2148019C1
METHOD FOR PROCESSING DOLOMITE 1996
  • Lokshin Eh.P.
  • Makarov V.N.
  • Kalinnikov V.T.
  • Kremenetskaja I.P.
 RU2104935C1
METHOD OF PREPARING MONOVALENT TITANYL PHOSPHATE AND/OR ARSENATE 1996
  • Ivanenko V.I.
  • Lokshin Eh.P.
  • Masloboev V.A.
  • Udalova I.A.
  • Kadyrova G.I.
 RU2093467C1
TITANIUM-CONTAINING CONCENTRATE PROCESSING METHOD 2001
  • Gerasimova L.G.
  • Maslova M.V.
  • Matveev V.A.
  • Okhrimenko R.F.
  • Lazareva I.V.
 RU2207980C1

RU 2 073 695 C1

Authors

Gerasimova L.G.

Nikolaev A.I.

Safonova L.A.

Zhdanova N.M.

Vetrova E.P.

Dates

1997-02-20—Published

1994-04-27—Filed

read Similar patents