Show metadata Hide metadata

(19)

(11)

2 429 199

(13)

(51)

IPC

C01F17/00(2006-01-01)

C22B59/00(2006-01-01)

(21) (22)

Application

2010109658/05, 2010-03-15

(24)

Start date

2010-03-15

(22)

Actual filing date

2010-03-15

(45)

Published

2011-09-20

(72)

Inventor

Lokshin Ehfroim PinkhusovichTareeva Ol'Ga Al'Bertovna

(73)

Holder

Uchrezhdenie Rossijskoj Akademii Nauk Institut Khimii I Tekhnologii Redkikh Ehlementov I Mineral'Nogo Syr'Ja Im. I.V. Tananaeva Kol'Skogo Nauchnogo Tsentra Ran Knts Ran)

METHOD OF CLEANING FLUORINE-CONTAINING RARE-EARTH CONCENTRATE Russian patent published in 2011 - IPC C01F17/00 C22B59/00

Abstract RU 2429199 C1

FIELD: chemistry.

SUBSTANCE: concentrate obtained when processing apatite is treated with concentrated sulphuric acid in the presence of hydrated silica at 95-130°C with transition of fluorine to gaseous phase and obtaining a sulphate-phosphate rare-earth concentrate which is leached with water to obtain a sulphate rare-earth concentrate free from fluorine and phosphorus and a sulphate-phosphate solution.

EFFECT: invention enables to clean a rare-earth concentrate from fluorine and phosphorus.

4 cl, 4 ex

Similar patents RU2429199C1

Title	Year	Author	Number
METHOD OF PURIFYING PHOSPHATE-FLUORIDE CONCENTRATE OF REE	2013	Lokshin Ehfroim Pinkhusovich Tareeva Ol'Ga Al'Bertovna Kalinnikov Vladimir Trofimovich	RU2523319C1
METHOD FOR PROCESSING FLUORIDE RARE-EARTH CONCENTRATE	2016	Lokshin Efroim Pinkhusovich Tareeva Olga Albertovna	RU2630989C1
METHOD OF EXTRACTING LANTHANIDES FROM WET-PROCESS PHOSPHORIC ACID	2010	Lokshin Ehfroim Pinkhusovich Tareeva Ol'Ga Al'Bertovna	RU2443630C1
PHOSPHOSEMIHYDRATE PROCESSING METHOD	2012	Lokshin Ehfroim Pinkhusovich Tareeva Ol'Ga Al'Bertovna	RU2507276C1
METHOD FOR PROCESSING PHOSPHOGYPSUM, CONTAINING PHOSPHOROUS COMPOUND AND LANTHANIDES	2007	Lokshin Ehfroim Pinkhusovich Grishin Nikolaj Nikitovich Sergienko Vladimir Sergeevich Tareeva Ol'Ga Al'Bertovna Kalinnikov Vladimir Trofimovich	RU2337879C1
METHOD OF PROCESSING PHOSPHOGYPSUM	2014	Lokshin Ehfroim Pinkhusovich Tareeva Ol'Ga Al'Bertovna Kim Vladimir Efimov Jurij Semenovich Kostinets Aleksandr Mikhajlovich	RU2551292C2
METHOD OF PROCESSING PHOSPHOGYPSUM	2012	Lokshin Ehfroim Pinkhusovich Tareeva Ol'Ga Al'Bertovna Kalinnikov Vladimir Trofimovich	RU2487083C1
METHOD OF PHOSPHOGYPSUM PROCESSING FOR MANUFACTURE OF CONCENTRATE OF RARE-EARTH ELEMENTS AND GYPSUM	2011	Lokshin Ehfroim Pinkhusovich Tareeva Ol'Ga Al'Bertovna Kalinnikov Vladimir Trofimovich	RU2458999C1
METHOD OF EXTRACTING RARE-EARTH METALS FROM PHOSPHOGYPSUM	2012	Fokin Konstantin Sergeevich Nesterova Elizaveta Olegovna	RU2491362C1
METHOD OF PHOSPHOGYPSUM PROCESSING	2015	Lokshin Efroim Pinkhusovich Tareeva Olga Albertovna	RU2590796C1

RU 2 429 199 C1

Authors

Lokshin Ehfroim Pinkhusovich

Tareeva Ol'Ga Al'Bertovna

Dates

2011-09-20—Published

2010-03-15—Filed