RO86901B1 - Process for the separation of cerium from trivalent lantanides - Google Patents

Process for the separation of cerium from trivalent lantanides

Info

Publication number
RO86901B1
RO86901B1 RO112004A RO11200483A RO86901B1 RO 86901 B1 RO86901 B1 RO 86901B1 RO 112004 A RO112004 A RO 112004A RO 11200483 A RO11200483 A RO 11200483A RO 86901 B1 RO86901 B1 RO 86901B1
Authority
RO
Romania
Prior art keywords
cerium
separation
solution
trivalent
carbonate
Prior art date
Application number
RO112004A
Other languages
Romanian (ro)
Other versions
RO86901A2 (en
Inventor
Constantin Marius Vladescu
Genghiz Iusein
Original Assignee
Institutul De Cercetare, Inginerie Tehnologica
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Institutul De Cercetare, Inginerie Tehnologica filed Critical Institutul De Cercetare, Inginerie Tehnologica
Priority to RO112004A priority Critical patent/RO86901B1/en
Publication of RO86901A2 publication Critical patent/RO86901A2/en
Publication of RO86901B1 publication Critical patent/RO86901B1/en

Links

Landscapes

  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

Inventia se refera la un procedeu de separare a ceriului de lantanide trivalente prin precipitare oxidanta, aducand în contact solutia cu continut de CeO2 si Ln2O3 cu o suspensie apoasa de carbonat sau bicarbonat de amoniu Ce02 de 3:1 si cu apa în exces de 250% fata de necesarul stoichiometric, în care în scopul obtinerii unei precipitari cantitative a ceriului continut în solutie se adauga simultan cantitatile prestabilite de carbonat sau bicarbinat de amoniu si apa oxigenta în solutia supusa tratarii în care pH>3 la peste 95 degree C si se mentine sub agitare amestecul de reactie la aceasta temperatura timp de o ora.The invention relates to a process for the separation of trivalent lanthanide cerium by oxidative precipitation, bringing the solution containing CeO2 and Ln2O3 with an aqueous suspension of carbonate or ammonium bicarbonate CeO2 of 3: 1 and with water in excess of 250% to the stoichiometric requirement, wherein in order to obtain a quantitative precipitation of the cerium contained in the solution, the preset amounts of carbonate or ammonium bicarbonate and oxygenated water are simultaneously added to the solution to be treated where the pH> 3 exceeds 95 ° C and is maintained under stirring the reaction mixture at this temperature for one hour.

RO112004A 1983-09-07 1983-09-07 Process for the separation of cerium from trivalent lantanides RO86901B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO112004A RO86901B1 (en) 1983-09-07 1983-09-07 Process for the separation of cerium from trivalent lantanides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO112004A RO86901B1 (en) 1983-09-07 1983-09-07 Process for the separation of cerium from trivalent lantanides

Publications (2)

Publication Number Publication Date
RO86901A2 RO86901A2 (en) 1985-06-29
RO86901B1 true RO86901B1 (en) 1985-06-30

Family

ID=20113602

Family Applications (1)

Application Number Title Priority Date Filing Date
RO112004A RO86901B1 (en) 1983-09-07 1983-09-07 Process for the separation of cerium from trivalent lantanides

Country Status (1)

Country Link
RO (1) RO86901B1 (en)

Also Published As

Publication number Publication date
RO86901A2 (en) 1985-06-29

Similar Documents

Publication Publication Date Title
DE3768237D1 (en) METHOD AND DEVICE FOR PRODUCING SUSPENDED EARTH ALKALINE CARBONATES.
ATE80246T1 (en) METHOD OF MAKING HIGH-TEMPERATURE SUPERCONDUCTORS.
ES8707220A1 (en) A METHOD FOR SYNTHESIZING ASCORBATE-2-POLYPHOSPHATE COMPOUNDS
PT84491A (en) Process for preparing high-purity dermatan sulphate and pharmaceutical compositions which contain it
RO86901B1 (en) Process for the separation of cerium from trivalent lantanides
ES8707703A1 (en) Purification of zirconium compounds.
AU7548687A (en) Preparation of hydrolysed zirconium salt precursors and high purity zirconia
GB1459379A (en) Process for producing a-type calcium sulphate hemihydrate
ES471032A1 (en) Purification process
ES2004803A6 (en) A process for the preparation of sulphide-free alkali liquor.
NO862768D0 (en) RARE EARTH ELEMENT CONNECTIONS AND PROCEDURES FOR THEIR PREPARATION.
ES2031871T3 (en) PROCEDURE FOR THE ISOLATION OF ISOTIAZOLINONE DERIVATIVES.
GB1511636A (en) Process for the preparation of 2-chloronicotinic acid
GB1271112A (en) Phosphate removal from waste water
SU975569A1 (en) Process for producing aqueous solution of calcium nitrite
RO91090B1 (en) Process for preparing salts of salicylic acids with alkaly metals
JPS57130999A (en) Purification of ribonucleic acid
SU1327974A1 (en) Foaming agent for flotation of sylvanite ores
RO96147B1 (en) Process for processing the depleted copper-containing electrolyte
JPS55151554A (en) Production of dihydroperoxide
RO91524B1 (en) Process for purifying a monoazoic colouring agent
SU1130528A1 (en) Composition for selective recovery of lead sulfide from products of metallurgical processes
JPS5756332A (en) Treatment of waste liquor containing iron chloride
SU142961A1 (en) Wastewater treatment method for mercury compounds
RO92654B1 (en) Method for quantitative determination of sulphonamides