Patent · US Expired

Selected hydroxy-oximes as iron deactivators

US5100532A · kind A · utility

5Cited by
12References
17Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 5, 1990
Grant dateMar 31, 1992
Priority date
Expiry dateDec 5, 2010

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC10L1/231
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

2'-hydroxy-4' or 5'-alkylacetophenone oximes and 2-hydroxy-4 or 5-alkylbenzaldehyde oximes are used to deactivate iron species contained in hydrocarbon fluids. Left untreated, iron leads to decomposition of the hydrocarbon, resulting in the formation of gummy, polymer masses in the hydrocarbon liquid.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.