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US 2023/0159440 A1Published application
Compositions and methods to inhibit fouling of ammonium salts
AssigneeEcolab USA Inc.
InventorsShiguang LI, Peter Jian Jun SUN, Qing Qing YUAN
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Abstract
Disclosed are antifoulant compounds or compositions used for inhibiting or reducing the deposition of ammonium salts.
Claims39
A method of inhibiting deposition of a foulant comprising:
- introducing into a process a composition comprising at least one sulfonated compound having the general structure:
- R—(SO3)nM
- wherein R is a hydrocarbon group chosen from a linear or branched alkyl, aromatic, cyclic, alkaryl, aralky, or alkenyl groups, and mixtures thereof;
- M is H, alkali metals, alkaline earth metals, alkali metal cations, alkaline earth metal cations ammonium cations, alkyl ammonium cations, or mixtures thereof;
- and
- n ranges from 1 to about 6.
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A composition comprising at least one sulfonated compound to inhibit deposition of a foulant in contact with process equipment, the at least one sulfonated compound comprising the general structure:
- R—(SO3)nM
- wherein R is a hydrocarbon group chosen from a linear or branched alkyl, aromatic, cyclic, alkaryl, aralky, or alkenyl groups and mixtures thereof;
- M is H, alkali metals, alkaline earth metals, alkali metal cations, alkaline earth metal cations ammonium cations, alkyl ammonium cations, or mixtures thereof;
- and
- n ranges from 1 to about 6.
2 more elements
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Dependencies are inferred from the claim text.