I D
× COMMENTARYCOVER STORYIN THE NEWSNEWSFRONTS
Optimized Mixing
Improved equipment and controls, as well as continuous mixing, improve…
CHEMENTATOR + Show More BUSINESS NEWSTECHNICAL & PRACTICALFEATURE REPORTFACTS AT YOUR FINGERTIPSTECHNOLOGY PROFILEENVIRONMENTAL MANAGEREQUIPMENT & SERVICESFOCUS
Focus on Analyzers
Raman spectroscopy capability with bioreactor platforms BioPAT Spectro (photo) is…
NEW PRODUCTS + Show More SHOW PREVIEWS
Show Preview-IFAT
IFAT (rescheduled for September 7–11, Munich, Germany; www.ifat.de) is the…

Comment Processing & Handling

A recipe for improved Ti extraction from ilmenite

By Paul Grad |

Existing metallurgical processes for titanium production from ilmenite — by far the most sought-after titanium ore — are plagued by disadvantages, mainly the generation of large amounts of waste, and improvements are needed to treat ilmenite for the production of high-grade TiO2 pigment. Now, a group from CSIRO Minerals Down Under National Research Flagship and CSIRO Process Science and Engineering (Karawara, Western Australia; www.csiro.au) has developed a method for the recovery of titanium by the combination of direct leaching with solvent-extraction technology that overcomes some of the drawbacks of the traditional sulfate and chloride processes. The group used two types of ilmenite from different locations in Australia with Ti/Fe molar ratios of 1.17 and 1.33. The samples contained up to 33% Ti (equivalent to up to 55% TiO2), and up to 30% Fe. The group found that the direct leaching of the ilmenite samples with HCl was much more effective with high chloride concentration in the feed solution. The presence of CaCl2 was more effective for leaching than that of MgCl2 and NaCl due to its higher solubility. The leaching efficiencies of Ti and Fe reached 96% and 97%, respectively in HCl-CaCl2 solution, compared with 87%…
Related Content

Chemical Engineering publishes FREE eletters that bring our original content to our readers in an easily accessible email format about once a week.
Subscribe Now
Improving chemical production processes with IIoT and AI technologies
New filtration technology for highly corrosive media
PTA production: Lowering OPEX without compromising on quality
Sure that zero means zero in your zero-liquid discharge (ZLD) process?
How separation processes profit from Industrial Internet of Things (IIoT) solutions

View More