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US 2026/0217531 A1Published application
Method of manufacture for hydrazine composition
AssigneeAerojet Rocketdyne, Inc.
InventorRobert K. Masse
Life of this patent
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Abstract
A method includes reacting a mixture of hydrazine hydrate and hydroxyethylhydrazine with a nitrate to produce a product mixture that includes hydrazine hydrate, hydrazinium nitrate, hydroxyethylhydrazine, and hydroxyethylhydrazinium nitrate, and distilling the product mixture to produce a final mixture that includes hydrazine, hydroxyethylhydrazinium nitrate, and hydrazinium nitrate.
Claims16
A method comprising:
- reacting a mixture of hydrazine hydrate and hydroxyethylhydrazine with a nitrate to produce a product mixture that includes hydrazine hydrate, hydrazinium nitrate, hydroxyethylhydrazine, and hydroxyethylhydrazinium nitrate;
- and
- distilling the product mixture to produce a final mixture that includes hydrazine, hydroxyethylhydrazinium nitrate, and hydrazinium nitrate.
A method comprising:
- producing a mixture of hydrazine hydrate and hydroxyethylhydrazine by reacting ethylene oxide and an excess of hydrazine hydrate to yield an intermediate mixture that includes the hydrazine hydrate, the hydroxyethylhydrazine, and bis(hydroxyethyl) hydrazine;
- distilling the intermediate mixture to substantially remove the bis(hydroxyethyl) hydrazine from the intermediate mixture to produce the mixture of hydrazine hydrate and hydroxyethylhydrazine;
- reacting the mixture of hydrazine hydrate and hydroxyethylhydrazine with a nitrate to produce a product mixture that includes hydrazine hydrate, hydrazinium nitrate, hydroxyethylhydrazine, and hydroxyethylhydrazinium nitrate;
- and
- distilling the product mixture to yield a final mixture that includes hydrazine, hydroxyethylhydrazinium nitrate, and hydrazinium nitrate.
2 more elements
Dependencies are inferred from the claim text.