Method and apparatus for recovering a pure substance from an impure solution by crystallization

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United States of America Patent

PATENT NO 7179435
APP PUB NO 20050074378A1
SERIAL NO

10658459

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Abstract

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The invention relates to an apparatus for the purification of a substance from a solution, a suspension or a mixture of liquids by crystallization, preferably in a continuous manner. The apparatus comprises a first crystallizer (1c) comprising an input (1) for receiving a liquid comprising the substance and an output (4) for discharging a slurry of liquid and crystals. The apparatus comprises also a first separator (1s) connected to the output 4 of the first crystallizer (1c) having a product output (2), and being with a residue output (5) connected to an input of a second crystallizer (2c), and a second separator (2s) being with an input connected to an output (6) of the second crystallizer (2c), a crystal output (7) of the second separator (2s) being connected to an input of the first crystallizer (1c).

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Patent Owner(s)

Patent OwnerAddress
NIRO PROCESS TECHNOLOGY B V5221 EE 'S-HERTOGENBOSCH

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ruemekorf, Ray Sircy Rosmalen, NL 2 3
Scholz, Reinhard Uwe Kerken, DE 4 9

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