Leaching of titaniferous materials

Details Leaching of titaniferous materials Leaching of titaniferous materials

C - Chemistry, Metallurgy

22

B

C22B 3/10 (2006.01) C22B 3/08 (2006.01) C22B 34/12 (2006.01)

Patent

CA 2185000

A process for facilitating removal of one or more impurities from titaniferous material containing the impurities in a form which is highly soluble in acid. The material is in turn leached with a sulphuric acid solution and with a hydrochloric acid solution in either order. To enhance the susceptibility of the impurities to removal, the hydrochloric acid leach is augmented by one or more of the following: (i) addition of an effective amount of an added chloride salt (ii) pre-treatment of the titaniferous material with a solution of an effective amount of a carbonate salt, prefenably an alkali metal or alkaline earth metal carbonate; and or (iii) pre-treatment of the titaniferous material with a solution of an effective amount of a hydroxide, preferably an alkali metal or alkaline earth metal hydroxide.

Procédé destiné à faciliter l'enlèvement d'une ou plusieurs impuretés d'un matériau titanifère contenant des impuretés sous une forme hautement soluble dans de l'acide. On lessive ce matériau, dans n'importe quel ordre, avec une solution d'acide sulfurique et une solution d'acide chlorhydrique. Afin de faciliter l'enlèvement des impuretés, on ajoute au lessivage à l'acide chlorhydrique une ou plusieurs des opérations suivantes: (i) addition d'une quantité efficace d'un sel de chlorure ajouté; (ii) traitement préalable du matériau titanifère à l'aide d'une solution en quantité efficace d'un sel de carbonate, de préférence un carbonate de métal alcalin ou un carbonate alcalino-terreux; et/ou (iii) traitement préalable du matériau titanifère à l'aide d'une solution en quantité efficace d'un hydroxyde, de préférence un hydroxyde de métal alcalin ou un hydroxyde alcalino-terreux.

Affiliated with

Also associated with

Rating

Leaching of titaniferous materials does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Leaching of titaniferous materials, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Leaching of titaniferous materials will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1468160