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1. (WO1991005760) ION FLOTATION WITH ANIONIC REAGENTS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/005760 International Application No.: PCT/AU1990/000481
Publication Date: 02.05.1991 International Filing Date: 05.10.1990
Chapter 2 Demand Filed: 19.04.1991
IPC:
B03D 1/01 (2006.01) ,B03D 1/012 (2006.01) ,C07C 229/24 (2006.01) ,C07C 335/22 (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
001
Flotation agents
004
Organic compounds
01
containing nitrogen
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
012
containing sulfur
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
229
Compounds containing amino and carboxyl groups bound to the same carbon skeleton
02
having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton
04
the carbon skeleton being acyclic and saturated
24
having more than one carboxyl group bound to the carbon skeleton, e.g. aspartic acid
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
335
Thioureas, i.e. compounds containing any of the groups the nitrogen atoms not being part of nitro or nitroso groups
04
Derivatives of thiourea
16
having nitrogen atoms of thiourea groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton
22
being further substituted by carboxyl groups
Applicants:
THE BROKEN HILL PROPRIETARY COMPANY LIMITED [AU/AU]; BHP House 140 William Street Melbourne, VIC 3000, AU (AllExceptUS)
ENGEL, Malcolm, David [AU/AU]; AU (UsOnly)
SMITHAM, James, Bryer [AU/AU]; AU (UsOnly)
NICOL, Stuart, Kenneth [GB/AU]; AU (UsOnly)
Inventors:
ENGEL, Malcolm, David; AU
SMITHAM, James, Bryer; AU
NICOL, Stuart, Kenneth; AU
Agent:
CORBETT, Terence, G. ; Davies and Collison 1 Little Collins Street Melbourne, VIC 3000, AU
Priority Data:
PJ 686113.10.1989AU
Title (EN) ION FLOTATION WITH ANIONIC REAGENTS
(FR) FLOTTATION D'IONS UTILISANT DES REACTIFS ANIONIQUES
Abstract:
(EN) Compounds of general formula (I), wherein Y+ is a metal cation or a hydrogen ion, and either R1 is an isothiouronium or amine group, m is 10 to 18, n is 0, and R2 is H, or R1 is H, m is 10 to 18, n is 1 to 4, and R2 is an isothiouronium or amine group. Methods for preparing the compounds of formula (I). Methods for ion flotation, especially of gold, using compounds of formula (I) as ion flotation reagents.
(FR) Dans les composés représentés par la formule générale: (I), Y+ représente un cation de métal ou un ion d'hydrogène et soit R1 représente un groupe isothiouronium ou amine, m est égal à un nombre compris entre 10 et 18, n est égal à 0 et R2 représente H, soit R1 représente H, m est égal à un nombre compris entre 10 et 18, n est égal à un nombre compris entre 1 et 4 et R2 représente un groupe isothiouronium ou amine. Des procédés de préparation des composés de la formule (I) et des procédés de flottation d'ions, destinés en particulier à l'or, qui utilisent les composés de la formule (I) comme réactif de flottation d'ions, sont décrits.
Designated States: AT, AU, BB, BG, BR, CA, CH, DE, DK, ES, FI, GB, HU, JP, KP, KR, LK, LU, MC, MG, MW, NL, NO, RO, SD, SE, SU, US
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, IT, LU, NL, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CM, GA, ML, MR, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
CA2069304AU1990065020