Methods of making fine particulate aluminum nitride

Details Methods of making fine particulate aluminum nitride Methods of making fine particulate aluminum nitride

1987-09-11

1989-09-26

Doll, John

Chemistry of inorganic compounds

Nitrogen or compound thereof

Binary compound

C01B 2106

Patent

active

048698920

ABSTRACT:
A method of making fine particulate aluminum nitride, including the steps of reacting gaseous aluminum trichloride with aluminum-containing metallic material at elevated temperature to convert some of the trichloride to monochloride gas; introducing a gaseous nitrogen source to the monochloride-containing gas for reacting nitrogen with the monochloride to form fine particulate aluminum nitride; conducting a flow of gas comprising aluminum trichloride having the particulate nitride entrained therein to a cooling locality; there condensing the trichoride and accumulating the condensed trichloride and particulate nitride; and periodically reevaporating and removing the trichloride from the cooling locality for separating out and recovering the accumulated nitride.

REFERENCES:
patent: 3216820 (1965-11-01), Phillips et al.
patent: 3352637 (1967-11-01), Heymer et al.
patent: 3477812 (1969-11-01), Huml et al.
patent: 3607014 (1971-09-01), Huml et al.
patent: 3979500 (1976-09-01), Sheppard et al.
Chemical Abstracts, vol. 105, No. 26 (Dec. 1986), Abstract No. 229306p.

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