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Geography & Supply Chains · Rutile · 5 min read

Most titanium ends up as white pigment, not as metal

Titanium travels from mineral grains to a chemical intermediate and, in the chloride route, forks there; on this publication's reading, each stage is a different product, often made in different places and counted on a different basis.

Reviewed by Peter Uppal

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The short version

Titanium is mined as minerals such as ilmenite and rutile, and most of it ends up as titanium dioxide pigment rather than metal: the European Commission's 2023 criticality study says titanium in all forms is around 80% used as white pigment. In the chloride route the chain forks at titanium tetrachloride, which is either oxidised to pigment or reduced with magnesium or sodium to a porous metal called sponge. On this publication's reading, because each stage is a different substance reported on a different basis, a tonnage at one stage cannot be set beside a tonnage at another without first putting both on one basis.

From mineral grains to a chemical

The starting point is a handful of minerals. USGS names the titanium minerals of economic importance as ilmenite, rutile, and an alteration product of ilmenite and other minerals called leucoxene(opens in a new tab). USGS notes that ilmenite often is processed to produce a synthetic rutile or titanium slag(opens in a new tab).

The next step turns mineral into chemical. In the chloride process, natural rutile, synthetic rutile, chloride-grade ilmenite, or titanium slag is converted to TiCl₄ by chlorination in the presence of petroleum coke(opens in a new tab). There is a second road to pigment that skips that intermediate: in the sulphate process, ilmenite or titanium slag is reacted with sulphuric acid(opens in a new tab).

Where the chain forks

Titanium tetrachloride is where the chloride route divides. Down one branch, TiCl₄ is oxidised with air or oxygen at about 1,000 degrees Celsius, and the resulting TiO₂ is calcined(opens in a new tab): that is pigment. Down the other, titanium mineral concentrates are chlorinated to TiCl₄, which is reduced with magnesium (the Kroll process) or sodium (the Hunter process); the porous metal formed is called sponge(opens in a new tab). From sponge, titanium ingot and slab are produced by melting titanium sponge and (or) scrap, usually with other alloying elements, such as aluminium and vanadium(opens in a new tab).

Which titanium do you mean: the mineral, the white powder, or the metal?

How much goes each way

Three sources give the split, each on its own basis. The Commission's 2023 study says titanium in all forms is around 80% used as white pigment(opens in a new tab). In the United States, the Mineral Commodity Summaries 2026 says more than 95% of titanium mineral concentrates were consumed by domestic TiO₂ pigment producers(opens in a new tab). For the world, the SCRREEN titanium factsheet, citing a 2022 study, says more than 95% of the world's titanium ore raw materials are used to produce TiO₂(opens in a new tab).

USGS's 2026 edition estimates world titanium sponge production at 370,000 t in 2025, against yearend operating capacity of 470,000 t(opens in a new tab). Its pigment figure is a capacity, not an output: an estimated 9,900,000 t of yearend operating capacity in 2025(opens in a new tab).

The EU's 2023 study, which found titanium overall not critical, assessed titanium metal as a specific and critical form of titanium(opens in a new tab), and titanium metal(opens in a new tab) is the entry on both EU lists.

Each stage happens somewhere else

On this publication's reading, each step changes what the product is, from mineral grains to a chemical compound or a metal, so one element name can refer to physically different products made by different operators in different places.

The United States shows it within one border. USGS reports that the country did not produce titanium sponge metal in 2025(opens in a new tab), that the last domestic sponge plant closed in 2024(opens in a new tab), and that TiO₂ pigment was made by four companies operating five facilities in four States(opens in a new tab). USGS reports that, although heavily reliant on imports of titanium mineral concentrates, the United States was a net exporter of TiO₂ pigments(opens in a new tab). Its producers of titanium ingot and downstream products were reliant on imports of titanium sponge and scrap(opens in a new tab), with sponge imports an estimated 44,000 tonnes in 2025(opens in a new tab).

The EU's pattern is different again, and its figures are older. SCRREEN's January 2024 factsheet reports no current primary titanium ore mining nor titanium sponge (metal) production within the EU(opens in a new tab), and gives average EU import reliance for titanium in 2016–2020 as 100% at the extraction stage, 18% at the oxides-processing stage and 100% for titanium metal (sponge)(opens in a new tab).

Why the stages do not add up

SCRREEN and USGS count each stage on its own basis. SCRREEN converts trade to titanium content with a separate factor for each form: 32% for ores and concentrates, 60% for titanium oxides, 54% for titanium slag and 100% for unwrought titanium(opens in a new tab). USGS's 2026 edition reports even the mine stage in oxide terms, estimating world production of ilmenite and rutile at a rounded 9,800 thousand t of TiO₂ content in 2025(opens in a new tab), while its sponge figures are tonnes of metal.

The gap is wide even on one basis. SCRREEN puts average EU apparent consumption at 456,539 t at the extraction stage, 425,694 t at the oxides-processing stage and 9,812 t as titanium metal, all in titanium content, as 2016–2020 averages(opens in a new tab). On this publication's arithmetic, the first is roughly 47 times the last. Those EU averages belong to 2016–2020 and are not comparable, year for year, with the USGS estimates for 2025.

Zircon and the rare earths run their own chains

Titanium is not the only element whose name hides several products. For zirconium, SCRREEN reports that approximately 75% of zirconium ore is directly used as zircon, the remaining is transformed in zirconium oxide and other chemicals, including zirconium metal(opens in a new tab). For the rare earths, SCRREEN describes a chain running from mining ores, through beneficiation into mineral concentrates, hydrometallurgical processing into mixed chemical concentrates, separating and refining into individual oxides, converting certain oxides into metals and forming alloys, to manufacturing some alloys into devices such as permanent magnets(opens in a new tab).

Related

  • Processing Technology — how each conversion along the chain is carried out
  • Refining — the chemical stages between a concentrate and a product
  • Countries — where each stage of a chain sits
  • Supply Chain Risk — dependence measured one stage at a time
  • Strategic Stockpiles — which form of a material a stockpile holds

Sources

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