Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Including means rotating reaction chamber during use
Patent
1983-01-20
1985-12-17
Bernstein, Hiram H.
Chemical apparatus and process disinfecting, deodorizing, preser
Chemical reactor
Including means rotating reaction chamber during use
422241, 422242, 422254, 156DIG98, C30B 710
Patent
active
045592080
ABSTRACT:
Large single crystals of berlinite are grown onto seed crystals by maintaining the crystals at a fixed elevated temperature in a pressure vessel containing a nutrient of coarse berlinite crystalline powder, held at a fixed lower temperature, and concentrated phosphoric acid. Because berlinite shows retrograde solubility, the nutrient goes into solution, and berlinite deposits on the higher-temperature growing crystal. The vessel is rocked to promote motion of saturated solution to the crystal and depleted solution to the nutrient. Large single crystals of alpha-gallium orthophosphate may be grown using the same apparatus and a similar process. The resultant crystals may be cut into wafers useful in surface acoustic wave devices.
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Stanley, Industrial and Engineering Chemistry 8/54 vol. 46, No. 8, pp. 1684-1689.
Kolb et al., Jl. of Crystal Growth 43 (1978) pp. 313-319.
Webster, New World Dictionary, World Pub. Co. N.Y. 1968, College edition p. 109.
Buehler Ernest
Chai Bruce H.
Flynn John J.
Allied Corporation
Bernstein Hiram H.
Fuchs Gerhard H,.
Riesenfeld James
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