METHOD OF CLEANING ROCKET FUEL TANKS TO REMOVE REMAINS OF ASYMMETRICAL DIMETHYLHYDRAZINE FUEL Russian patent published in 2006 - IPC C06B21/00 F42D5/04 

Abstract RU 2274629 C2

FIELD: rocket fuels.

SUBSTANCE: invention relates to methods of disposal (neutralization) of remains of asymmetrical dimethylhydrazine in fuel tanks of ballistic rockets. Method comprises supplying 20% formaldehyde solution into tanks at a rate 200 g/min under nitrogen atmosphere at normal or elevated pressure while controlling temperature by limiting it to 30-35°C and followed by adding, as dimerizing agent, acetic acid having concentration above 20%, which is added before heat evolution ceases.

EFFECT: achieved rapid and safe disposal of fuel.

1 dwg

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Authors

Kolesnikov Sergej Vasil'Evich

Rumjantsev Dmitrij Evgen'Evich

Kozhukhov Vsevolod Sergeevich

Balabanov Aleksandr Leonidovich

Dates

2006-04-20Published

2004-02-17Filed