Method for reducing odorant depletion

Details Method for reducing odorant depletion Method for reducing odorant depletion

1996-07-10

1998-05-05

Achutamurthy, Ponnathapura

Chemical apparatus and process disinfecting, deodorizing, preser

Process disinfecting, preserving, deodorizing, or sterilizing

Process of storage or protection

422 7, 422 15, 422 16, 422 40, 427230, 427235, 507238, 507239, B01J 1900

Patent

active

057469733

ABSTRACT:
Odorant depletion is reduced by passivating the internal surface of LP-gas transportation and storage vessels by the addition of passivating agents comprising mixtures of corrosion inhibitors such as phosphate esters, fatty amines, poly amides, imidazolines, poly imidazolines, quaternary amines, poly quats, dimer acids, trimer acids, polymeric acids, ethoxylated fatty amines, ethoxylated polyamides, ethoxylated alcohols and mixtures thereof in one or more solvents. In a preferred embodiment, the passivating agents contain one or more phosphate esters defined by the equation:
where;

REFERENCES:
patent: 4701303 (1987-10-01), Nevers
patent: 5611911 (1997-03-01), Araghi
patent: 5611992 (1997-03-01), Araghi

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