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US 2025/0263296 A1Published application
Process for purifying hydrogen halide solutions containing organic impurities
OwnerJeffrey Todd APLIN, Thanikavelu MANIMARAN +3inventors
InventorsJeffrey Todd APLIN, Thanikavelu MANIMARAN, Keyur SHAH, Benjamin R. CAIRE, Charles W. HAMILTON
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Abstract
The disclosure relates to a novel plant process for purifying hydrogen halide solutions. The process includes halogenating the organic compounds, particularly phenolic compounds, in the hydrogen halide solution to precipitate the halogenated compounds. The halogenated compounds can be filter, the hydrogen halide solution further purified on an adsorbent bed, and the clean hydrogen halide solution can be recycled or used in other processes.
Claims16
A process for purifying an HX stream containing a phenolic residue, comprising
- Treating the HX stream by oxidative halogenation to halogenate the phenolic residue, producing a halogenated phenolic residue and a halogenated solution;
- Cooling the halogenated solution;
- and
- Filtering the halogenated phenolic residue from the halogenated solution to produce a partially purified HX stream;
- wherein the HX stream comprises an HCl stream, an HBr stream, an HI stream, or combinations thereof.
2 more elements
Dependencies are inferred from the claim text.