Armstrong process
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The Armstrong process is used to refine titanium. Its output is particle-sized dust which can be sprayed into pattern-molds.[1][2][3] It was patented in 1999.[4] The output of this process has a "coral-like morphology", which differs from the traditional outputs like "spherical gas-atomized powder, mechanically crushed angular particles, or the titanium sponge morphology created during the Kroll process."[3]
![{\displaystyle {\ce {{TiCl4}+4{Na}->[98~^{\circ }\mathrm {C} ]{Ti}+4{NaCl}}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/88eeae85190869a42124cc5721bcda91f77387b9)