PROCESS FOR OBTAINING LITHIUM FROM ALUMINOSILICATES AND INTERMEDIATE COMPOUNDS

WIPO Patent Application WO/2015/155684

A3

Process for obtaining lithium compounds and intermediate compounds, comprising the following steps: a) contacting aluminosilicate particles, for example α- spodumene, with at least one fluorine compound, for example HF, Na F or others; b) stirring the mixture increasing the temperature until reaching an appropriate temperature; c) carrying out at least a precipitation and filtration process of the mixture of step b), and, d) recovering the lithium compound. The process may comprise using HF at a concentration between 5 and 30% v/v or Na F at a concentration between 5 and 30% w/v; a solid/liquid ratio of step a) between 0.9 and 14.4% w/v; a particle size of between 29 and 200 µm. The final lithium product of the process may be lithium carbonate or lithium fluoride.

JPS5939488

[Title of the Invention] How to extract metal valuables from solution of metal salt

RODRIGUEZ MARIO HUMBERTO (AR)
ROSALES GUSTAVO DANIEL (AR)
RUIZ MARÍA DEL CARMEN (AR)

PCT/IB2015/052512

March 03, 2016

April 07, 2015

Click for automatic bibliography generation  

INIS BIOTECH LLC (US)
CONSEJO NAC INVEST CIENT TEC (AR)
UNIV NAC DE CUYO (AR)

C22B3/00; C22B3/06; C22B3/10

CN102690961A	2012-09-26
RU2262544C1	2005-10-20
RU2168556C1	2001-06-10
CN101235441B	2010-09-29
US4159308A	1979-06-26
US2942940A	1960-06-28
US20120189516A1	2012-07-26
US3151934A	1964-10-06

SITANDO, O ET AL.: "Processing of a Zimbabwean petalite to obtain lithium carbonate.", INTERNATIONAL JOURNAL OF MINERAL PROCESSING., January 2011 (2011-01-01), pages 5

View/Download PDF      PDF Help

Previous Patent: UNICAST ADAPTIVE BITRATE STREAMING

Next Patent: POLYMERIC RULE DIE, AND FORMULATIONS THEREFOR