Single-crystal – oriented-crystal – and epitaxy growth processes; – Processes of growth from liquid or supercritical state
Patent
1997-06-04
2000-02-15
Hiteshew, Felisa
Single-crystal, oriented-crystal, and epitaxy growth processes;
Processes of growth from liquid or supercritical state
23295R, 422260, C30B 708
Patent
active
060247932
ABSTRACT:
For the purpose of separating a substance from a liquid mixture by crystallization, the inner walls of pipes in a crystallizer (S-1, S-2, S-3) are cooled by evaporating a liquid medium, the pressure of the gaseous phase of the medium being controlled in accordance with the temperature required for crystallization. In these conditions a layer of crystals forms on the outer walls of the pipes and can later be melted. The previously-formed crystal layer is melted in one crystallizer simultaneously with crystallization in another crystallizer. This is done by introducing gaseous medium which is produced in a crystallizer during the said evaporation. In addition, heat energy can be supplied to the crystallizer where melting occurs, in order to evaporate liquid medium there so that melting is accelerated. The two simultaneously operating crystallizers operate respectively as an evaporator and as a condenser in a refrigerating unit (11), thus saving considerable energy compared with known crystallization methods.
REFERENCES:
patent: 3272875 (1966-09-01), Gordon et al.
patent: 3385074 (1968-05-01), Aronson
patent: 3404536 (1968-10-01), Aronson
patent: 4552575 (1985-11-01), Stolzenberg et al.
patent: 4799945 (1989-01-01), Chang
patent: 4954151 (1990-09-01), Chang et al.
patent: 5700435 (1997-12-01), Bischof
Hiteshew Felisa
Sulzer Chemtech AG
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