Stabilized chelating agents for removing hydrogen sulfide

Details Stabilized chelating agents for removing hydrogen sulfide Stabilized chelating agents for removing hydrogen sulfide

C - Chemistry, Metallurgy

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B

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C01B 17/05 (2006.01) B01D 53/52 (2006.01) C10K 1/10 (2006.01)

Patent

CA 1295986

ABSTRACT Soluble chemical compounds having a high affinity for hydroxyl radicals are effective stabilizers for chelating agents used in the hydrogen sulfide removal process. The stabilizers include water-soluble aromatic compounds, bromide ions, iodide ions, cyanides, nitrites, amino acids, sugars, ascorbates, alcohols, polyols, aliphatic aldehydes, soluble organic compounds having unsaturated carbon- carbon bonds, dimethyl sulfoxide, organic disulfides, alkyl amines, and formates. The aromatic compounds have the additional benefit of combining with hydroxyl radicals to form chelating agents.

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