CONTINUOUS CRYSTAL PURIFICATION EQUIPMENT

PROBLEM TO BE SOLVED: To provide continuous crystal purification equipment which has the same efficiency or is better than the conventional continuous crystal purification equipment and which has a wide application range while the structure is simpler and stiffer than the conventional equipment.SOLU...

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Bibliographic Details
Main Authors MAEDA SHOGO, MIZUTANI EIICHI, BANDO YOSHIYUKI, KAWASE TAIJUN
Format Patent
LanguageEnglish
Published 22.11.2012
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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Summary:PROBLEM TO BE SOLVED: To provide continuous crystal purification equipment which has the same efficiency or is better than the conventional continuous crystal purification equipment and which has a wide application range while the structure is simpler and stiffer than the conventional equipment.SOLUTION: The equipment includes a hollow cone axis screw covered with a double tubular body comprising an outer tube and an inner tube made of a screen. The equipment conducts the compression filtration of coarse crystals and crystals in a suspension. The crystal is partially melted by passing the fluid with a melting point near to that of the crystal into the hollow cone axis. The melted liquid is sequentially press-filtrated to enhance the purity of the crystal.
Bibliography:Application Number: JP20110097964