Patenton — panteon of patents

(19)

RU

(11)

2 104 941

(13)

C1

(51)

IPC

(21) (22)

Application

96123320/25, 1996-12-10

(22)

Actual filing date

1996-12-10

(45)

Published

1998-02-20

(72)

Inventor

Lokshin Eh.P.Masloboev V.A.Lebedev V.N.Serkova R.P.

(73)

Holder

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

METHOD FOR PROCESSING OF PHOSPHATE OF RARE-EARTH METALS Russian patent published in 1998 - IPC

Abstract RU 2104941 C1

FIELD: inorganic chemistry; chemical technology. SUBSTANCE: phosphates of rare-earth metals are reduced with the help of carbon, its quantity being 120-140 % of stoichiometric amount being necessary for reduction of phosphorous pentoxide. The process is carried out at 1350-1400 C, phosphorous being converted into gaseous phase. Desired product is obtained as phosphorous-free rare-earth product as oxides of rare-earth metal being easily soluble in mineral acids. EFFECT: decreased temperature of the process; decreased amount of reducing agent; simplified scheme for further processing of desired product. 1 tbl

Similar patents RU2104941C1

Title Year Author Number
METHOD OF PROCESSING PHOSPHATE RARE-EARTH CONCENTRATE ISOLATED FROM APATITE 1998
  • Lebedev V.N.
  • Sergeeva S.D.
  • Masloboev V.A.
  • Lokshin Eh.P.
 RU2148019C1
MONAZITE CONCENTRATE PROCESSING METHOD 1999
  • Lebedev V.N.
  • Lokshin Eh.P.
 RU2151206C1
METHOD OF PREPARING PHOSPHORUS-CONTAINING ALLOY 2000
  • Serba V.I.
  • Frejdin B.M.
  • Kuz'Mich Ju.V.
  • Gorin V.I.
  • Kolesnikova I.G.
  • Voronchuk S.I.
  • Khajutin S.G.
 RU2186143C1
METHOD FOR PRODUCING PHOSPHORUS-CONTAINING ALLOY 1995
  • Serba V.I.
  • Frejdin B.M.
  • Khajutin S.G.
  • Kalinnikov V.T.
  • Kovalevskij V.P.
  • Kolesnikova I.G.
  • Lobacheva T.I.
  • Poljakov E.G.
 RU2080405C1
METHOD FOR PRODUCTION OF METAL-PHOSPHORUS ALLOY 1996
  • Kolesnikova I.G.
  • Lokshin Eh.P.
  • Serba V.I.
  • Frejdin B.M.
 RU2098497C1
BLACK GLASS 1993
  • Makarov V.N.
  • Lokshin Eh.P.
  • Suvorova O.V.
 RU2049746C1
MIXTURE FOR PRODUCTION OF MELT REFRACTORY MATERIALS 1992
  • Kononov M.E.
  • Masloboev V.A.
 RU2081094C1
PROCESS FOR CLEANING RARE-EARTH PHOSPHATE CONCENTRATE OF PHOSPHORUS 1992
  • Lebedev V.N.
  • Мasloboev V.А.
 RU2019510C1
DECORATIVE GLASS-CRYSTALLINE MATERIAL 1996
  • Makarov V.N.
  • Suvorova O.V.
  • Vasil'Eva N.Ja.
 RU2101240C1
METHOD OF PROCESSING OF LOPARITE CONCENTRATE 2000
  • Gerasimova L.G.
  • Kalinnikov V.T.
  • Majorov V.G.
  • Nikolaev A.I.
  • Sklokin L.I.
 RU2182887C2

RU 2 104 941 C1

Authors

Lokshin Eh.P.

Masloboev V.A.

Lebedev V.N.

Serkova R.P.

Dates

1998-02-20—Published

1996-12-10—Filed

read Similar patents