Chemistry: physical processes – Physical processes – Crystallization
Patent
1989-09-05
1991-11-05
Straub, Gary P.
Chemistry: physical processes
Physical processes
Crystallization
23296, 585805, 585801, 585815, B01D 900, C07C 700, C07C 714
Patent
active
050628623
ABSTRACT:
The invention relates to a crystallization process for recovering a pure substance from a liquid mixture, a starting mixture being cooled down in a crystallization zone to form a crystal suspension from which crystals of the pure substance are recovered, wherein a) the crystal suspension is subjected to a crude preliminary separation in a (preliminary) separation zone to form a first mother liquor and a crystal mass containing relatively small particles, b) the crystal mass formed in a) is allowed to develop in a development zone at a temperature which is higher than that of the crystallization zone and lower than the melting point of the substance to be recovered, and is separated into a developed crystal mass and a second mother liquor, and c) the developed crystal mass formed in b) is separated into a third mother liquor and the intended pure substance in a separation zone, as well as to an apparatus suitable for performing said process.
REFERENCES:
patent: 2750433 (1956-06-01), Tourneau et al.
patent: 2848515 (1958-08-01), Pfennig
patent: 2848517 (1958-08-01), Huff et al.
patent: 2848519 (1958-08-01), Corneil et al.
patent: 2890239 (1959-06-01), Quigg
Grasso's Koninklijke Machinefabrieken N.V.
Straub Gary P.
LandOfFree
Process and apparatus for recovering a pure substance from a liq does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process and apparatus for recovering a pure substance from a liq, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process and apparatus for recovering a pure substance from a liq will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-496244