PROCESSES FOR PREPARING TITANIUM OXIDE AND VARIOUS OTHER PRODUCTS

摘要

There are provided processes for preparing various products from various materials. For example, such processes are effective for extracting various metals from various materials, thereby allowing for preparing products such as aluminum chloride, alumina, titanium chloride and titanium oxide. These processes can comprise leaching the starting material with HCl so as to obtain a leachate and a solid. The solid can be treated so as to substantially selectively extract titanium therefrom while the leachate can be treated so as to substantially selectively recover a first metal chloride therefrom.

主权项

1. A process for preparing various products, the process comprising:
leaching a titanium-containing material comprising Ti, Si and a first metal with HCl so as to obtain a leachate comprising ions of said first metal and a solid comprising titanium, and separating the solid from the leachate; reacting the leachate with HCl so as to obtain a liquid and a precipitate comprising a chloride of the first metal, and separating the precipitate from the liquid; optionally heating the precipitate under conditions effective for converting the chloride of the first metal into an oxide of the first metal and optionally recovering HCl so-produced; and treating said solid so as to substantially separate Si from Ti that are contained therein.