Title: Recovery of aluminum from composite propellants

Abstract: Aluminum is recovered from solid rocket propellant containing a small amount of oxidizer by depolymerizing and dissolving propellant binder containing functional or hydrolyzable groups in a solution of sodium methoxide in an alcohol solvent optionally containing an aliphatic or aromatic hydrocarbon co-solvent and then filtering the solution to recover substantially all the aluminum in active form.

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Inventors: Frosch, Robert A. Administrator of the National Aeronautics and Space (Garland, UT, US)
Shaw, Graham C. (Garland, UT, US)

Application Number: 947000
Filing Date: 1978-09-29
Publication_date: 1980-10-21
Assignee:
Primary Class(es): 23/293R 75/353, 149/19.92, 149/108.4, 149/109.6, 149/124, 252/364, 264/3.1, 423/1, 423/131, 423/658.5, 525/384, 526/914
Other Classes:
US Patent Ref:

3337464	Aug, 1967	Sayles	149/108.
3379589	Apr, 1968	Hunter et al.	149/108.
3446764	May, 1969	Phillips et al.	252/364.
3451789	Jun, 1969	McIntosh	23/302.

Other Refs:
Primary Examiner: Scovronek, Joseph
Assistant Examiner:
Attorney: Mott; Monte F., Manning; John R., Grifka; Wilfred