Tantalum coated graphite isn't only used in uranium processing. It is used in any process where you don't want to diffuse graphite into some process you are working (molten metal or certain corrosive gases). Obviously it applies to uranium processing, but that isn't the only thing.
Additionally, people are getting too upset about the neutron source. It really isn't a big deal. It really isn't practical to make a powerful neutron flux outside of a nuclear reactor. These 'Highly Radioactive' neutron sources are no doubt trivial by comparison, and by physics. If I recall correctly it takes something like a hundred thousand alpha decays to yield ~50 neutrons (for an Am-Be neutron source). Not a particularly efficient process. Even the tiniest nuclear reactor would blow away the largest Am-Be source (or any other alpha-Be neutron source) by many many orders of magnitude.
What are the other applications for the Tantalum Coated Graphite that Iraq was using it for? It definitely can be used for corrosive applications but as I said before and as you noticed from page 84 and 133 of the UN documents I posted this combination of Tantalum and Graphite was prohibited, period. The UN document was very clear on putting this under the “Prohibited Nuclear Activity” section. Also see my post # 22 regarding the hidden uranium enrichment activities and again you see both Tantalum and Graphite as part of these activities.