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1. (WO1991016986) A MONAZITE BENEFICIATION PROCESS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/016986 International Application No.: PCT/AU1991/000011
Publication Date: 14.11.1991 International Filing Date: 11.01.1991
IPC:
B03D 1/004 (2006.01) ,B03D 1/008 (2006.01) ,B03D 1/014 (2006.01) ,B03D 1/02 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
03
SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
D
FLOTATION; DIFFERENTIAL SEDIMENTATION
1
Flotation
02
Froth-flotation processes
04
by varying ambient atmospheric pressure
B PERFORMING OPERATIONS; TRANSPORTING
03
SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
D
FLOTATION; DIFFERENTIAL SEDIMENTATION
1
Flotation
08
Subsequent treatment of concentrated product
B PERFORMING OPERATIONS; TRANSPORTING
03
SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
D
FLOTATION; DIFFERENTIAL SEDIMENTATION
1
Flotation
001
Flotation agents
004
Organic compounds
014
containing phosphorus
B PERFORMING OPERATIONS; TRANSPORTING
03
SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
D
FLOTATION; DIFFERENTIAL SEDIMENTATION
1
Flotation
02
Froth-flotation processes
Applicants:
CARR BOYD MINERALS LIMITED [AU/AU]; 24 Outram Street West Perth, W.A. 6005, AU (AllExceptUS)
BULATOVIC, Srdjan [CA/CA]; CA (UsOnly)
WILLETT, Graham, C. [AU/AU]; AU (UsOnly)
Inventors:
BULATOVIC, Srdjan; CA
WILLETT, Graham, C.; AU
Agent:
F.B. RICE & CO.; 28A Montague Street Balmain, NSW 2041, AU
Priority Data:
PK 007210.05.1990AU
Title (EN) A MONAZITE BENEFICIATION PROCESS
(FR) PROCEDE D'ENRICHISSEMENT DE MONAZITE
Abstract:
(EN) A collector agent for the froth flotation of rare earth minerals is disclosed. The collector agent is an emulsion which comprises a fatty acid, an emulsifier and a phosphonic acid derivative or salt thereof. An oil and/or an amine may be included in the emulsion. To prepare the collector agent, the components are formed into an emulsion and subsequently oxidized until homogeneous. The oxidation may be performed by heating the emulsion in air at a temprature of at least 60 °C. A process for the froth flotation of rare earth minerals using this collector agent is also disclosed.
(FR) Agent collecteur permettant de procéder à une flottation à la mousse de minéraux de terres rares. Ledit agent collecteur est une émulsion comprenant un acide gras, un émulsifiant et un dérivé d'acide phosphonique ou un sel de celui-ci. On peut inclure dans l'émulsion une huile et/ou une amine. Afin de préparer l'agent collecteur, les constituants sont transformés en une émulsion puis ils sont oxydés jusqu'à ce qu'ils soient homogènes. On peut procéder à l'oxydation par chauffage de l'émulsion dans l'air à une température d'au moins 60 °C. L'invention concerne également un procédé de flottation à la mousse de minéraux de terres rares à l'aide de cet agent collecteur.
Designated States: AU, BR, CA, JP, KP, KR, SU, US
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
AU1991071783