Dubbo project now at assessment stage, page-6

A bit of self education I thought I would share, although many here are already on top of this

A quick summary of the product changes from Dubbo 2013 and the changes proposed by Dubbo 2022 currently being assessed by NSW planners;

Dubbo 2013

The products of 2013 below would seem to include Zirconia (ZrO2), ZBC (Zirconia Basic Carbonate), both Nb2O5 and FeNb, then a wide range of HREE and LREE products (concentrates or oxides?)



Dubbo 2022

There are substantial changes in the 2022 flowsheet - see below;

• ZrO2 remains
• No ZBC but further processing instead to produce higher value de-hafniated Zirconia (DHZ) and Hafnia (HfO2)
• No more Nb2O5 but processing all into higher margin FeNb
• A substantial reduction in range of HREE/LREE products
• dropping Yttrium, Gadolinium, Europium, Lanthanum, Cerium and Samarium
• to just leave Neodymium/Praesodymium (heading to KMP), Terbium and Dysprosium