In situ formation of corrosion inhibitors

Details In situ formation of corrosion inhibitors In situ formation of corrosion inhibitors

1995-01-09

1996-03-12

Gibson, Sharon

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By condensation of entire molecules or entire hydrocarbyl...

585451, 585709, 585718, 585721, 585732, C07C 270

Patent

active

054988136

ABSTRACT:
Alkyl alcohols are added to the effluent from hydrocarbon reactions using phosphoric acid based catalysts to prevent corrosion in metallic pipes and vessels downstream of the reactor. The alcohol is believed to react with phosphoric acid present in the hydrocarbon stream to produce a mixture of phosphate esters which act as corrosion filmers to prevent corrosion. The high boiling points of the phosphate esters allow for the separation of useful product from the phosphate ester corrosion inhibitors.

REFERENCES:
patent: 2854497 (1958-09-01), Piehl
patent: 3038017 (1962-06-01), Ayers et al.
patent: 3371127 (1968-02-01), Cabanaw et al.
patent: 3467729 (1969-09-01), Rodgers
patent: 3887635 (1975-06-01), Parker et al.
patent: 4024050 (1977-05-01), Shell et al.
patent: 5326924 (1994-07-01), Kisalus

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