HCl Purification System

The Global Antico HCl Purification System is a multi-stage purification plant engineered to upgrade commercially available or process-produced hydrochloric acid to semiconductor, pharmaceutical, or electronic chemical grade — meeting demanding specifications such as SEMI C30 (Tier 1–4), USP, or EP standards. Crude HCl acid typically contains trace organic impurities, dissolved metal contaminants (Fe, Cr, Ni, Pb, etc.), particulates, and colour bodies that render it unsuitable for high-specification applications. The purification train deploys a combination of stripping/re-absorption (to remove dissolved gases and volatile organics), activated carbon adsorption (for non-volatile organics and colour removal), and ion exchange polishing (for ppb-level heavy metal reduction).

In the stripping stage, crude acid is heated under controlled conditions in a PTFE/PFA-lined stripper column, releasing dissolved HCl gas which is re-absorbed in ultra-pure water in a separate absorption column — producing purified HCl at target concentration. This re-absorption step physically separates the HCl from non-volatile impurities. The ion exchange polishing stage uses high-purity chelating resin beds to reduce metal ion concentrations to sub-ppb levels. All wetted pathway components — vessels, columns, piping, pumps, and instruments — are constructed from PTFE, PFA, or high-purity polypropylene. Inline ICP-OES compatible sampling points allow real-time trace metal verification. Modular capacity designs from 500 L/hr to 10,000 L/hr, with clean-room compatible skid packaging available for semiconductor fab integration.