Overview
Iodine is the only element of industrial significance that humanity does not mine from ore. One deposit type in the world — the Chilean caliche of the Atacama — is the sole ore exception. Everything else, everywhere, comes out of water: gas-field formation waters in Chiba, Japan, and the iodine-rich oilfield brines of the Anadarko Basin in Oklahoma. The industry is already built on the ARBOK premise.
And yet supply is extraordinarily concentrated. World output ~34 000 t/yr: Chile 23 000 t, Japan 9 000 t, everything else together under 2 000 t. The US takes 88% of its imports from Chile. Chilean iodine is a by-product of nitrate operations — the volume on the market is governed by nitrate economics, not by demand for iodine.
Demand does not bend. Iodinated contrast media for CT and radiography is the largest single application and has no substitute: the effect depends on the atomic number of iodine. Every scan consumes tens of grams and none returns. Iodine has no meaningful recycling loop.
The constraint is the process threshold. Blow-out and ion exchange must pump, acidify and contact the whole brine volume regardless of content, so cost per unit rises steeply as concentration falls. Only brines in the high tens to hundreds of mg/L qualify — which is why the world's only producer of iodine from oilfield water sits in the Anadarko and has now begun building in the Permian. Everything below that threshold is not feedstock, it is a disposal cost.
Bromine occupies the same brines at one to three orders of magnitude higher concentration and is recovered in the same pass. It is not a supply-security story — 430 000 t/yr at USD 3.00/kg, a tonnage chemical from Dead Sea and Smackover brines — but it is a substantial second revenue line on a stream being processed anyway.
> Core technology and architecture: see ARBOK-VC (Vacuum Cracking).
Applications
Feedstock streams: oil and gas formation waters; gas-field brines; drilling and Cenomanian waters; contrast-media and pharmaceutical synthesis effluent.
Outputs: iodine; bromine from the same pass; treated water.
End uses: contrast media, LCD polarising films, iodophor antiseptics, pharma synthesis, feed additives, acetic acid and nylon catalysts. Bromine: flame retardants, clear brine drilling fluids, biocides, mercury control.
Operating Principle
Cold boiling of the brine under deep vacuum. No furnaces, no membranes, no expensive purchased reagents. Separation happens in a single pass, inside the solution itself. Process cost is governed by throughput, not by the concentration of the target species — a brine at 10 mg/L is processed on the same terms as one at 500 mg/L.
Key Parameters
Iodine: USD 73/kg (Q2 2026); USD 68/kg CIF 2025, spot averaged USD 73/kg. World ~34 000 t/yr — Chile 23 000, Japan 9 000, Turkmenistan 800, Iran 700, Azerbaijan 210, Indonesia 50, Russia 8. US import reliance <50% of apparent consumption; imports 88% Chile, 11% Japan.
Reserves ~6.3 Mt worldwide; Japan 4.9 Mt.
Bromine: USD 3.00/kg (2025), exports ~USD 3.20/kg. World ~430 000 t/yr — Israel 200 000, Jordan 110 000, China 90 000, Japan 20 000, India 7 000, Ukraine 6 000. US import reliance <25%; US reserves 11 Mt. Seawater ~65 ppm Br.
Permian Basin: >20 M bbl/day of produced water (~3.2 M m³/day); water-to-oil 3–5, up to 10 in parts of the Delaware. 50–60% recycled to fracturing, remainder injected. Disposal USD 0.75–1.25/bbl.
World's only oilfield-water iodine producer: 743 t in 2025, revenue USD 66.5 M, eight plants in the Anadarko at 10 000–50 000 bbl/day each, now building in the Permian; guidance >1 000 t, ambition >2 000 t.
Architecture and Components
Containerised units of 200 m³/day. A site on 10 000 bbl/day (~1 590 m³/day) is 8 units. Shared platform with ARBOK-Brine, ARBOK-OIL WELL REGENESIS, ARBOK-Lithium, ARBOK-Strontium, ARBOK-Barium, ARBOK-CHLORIDE.
Advantages
Technical: no concentration threshold — ordinary field brine becomes feedstock where classical routes stop.
Economic: the water is already lifted, gathered, piped and paid for as a disposal service; recovery does not have to fund water handling. Bromine adds a second line from the same pass.
Strategic: converts an 88% single-country import dependence for a material every hospital consumes daily into domestic recovery from existing operations.
Integrations
Saltwater disposal operators, produced-water midstream, gas-field brine systems, contrast-media manufacturing effluent. Connects to ARBOK-Brine, ARBOK-Strontium, ARBOK-Lithium, ARBOK-OIL WELL REGENESIS, ARBOK-VC (Vacuum Cracking).
Deployment & Operation
Assay of the specific stream for I and Br (never a regional average) → configuration → install on the existing produced-water line ahead of disposal. Purchase or BOOM with contracted off-take on both products.
TRL
Platform TRL 9. Iodine/bromine-specific field reference pending. Purification of the iodine fraction to pharmacopoeial grade is a separate step, not demonstrated or costed in-house.
Market Potential
The customer is the produced-water handler, not an iodine trader: an operator already paying USD 0.75–1.25/bbl to dispose of the stream. Every saltwater disposal site in a basin with assayed halogen content is a candidate — but volume must be contracted before it is produced, because both markets are narrow.
Typical Project Economics
Basis: site handling 10 000 bbl/day = ~1 590 m³/day = ~556 000 m³/yr = 8 ARBOK units of 200 m³/day.
- Iodine at 50 mg/L: ~28 t/yr ≈ USD 2.0 M. At a conservative 10 mg/L: 5.6 t/yr ≈ USD 0.4 M.
- Bromine at 500 mg/L: ~278 t/yr ≈ USD 0.8 M — same pass, no second installation. At 1 000 mg/L: ~556 t ≈ USD 1.7 M.
- Permian scale at 10 mg/L iodine: ~11 600 t/yr — about a third of world production, in water currently paid for and injected back.
Risk Factors
Concentration variance. Iodine and bromine in formation waters vary by orders of magnitude between basins, formations and wells. The 10 mg/L iodine figure is a planning assumption, not a measured Permian value.
Narrow markets. 34 000 t/yr iodine and 430 000 t/yr bromine cannot absorb large new volumes. At 300 mg/L Br the annual Permian flow would contain ~348 000 t — about 80% of world bromine output. Output must be contracted, never dumped.
Regulatory context of produced water — disposal permitting, induced-seismicity constraints on injection, active rulemaking on beneficial reuse in several jurisdictions.
Purity. Pharmacopoeial-grade iodine is well above crude specification and its cost is not established in-house.
Related Technologies
ARBOK-Brine · ARBOK-Strontium · ARBOK-Lithium · ARBOK-Barium · ARBOK-CHLORIDE · ARBOK-OIL WELL REGENESIS · ARBOK-VC (Vacuum Cracking)