Pressure crystallization equipment
AssigneeKabushiki Kaisha Kobe Seiko Sho
InventorsMasato Moritoki, Kazuo Kitagawa
Life of this patent
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Abstract
Pressure crystallization equipment which effects segregation by the use of pressure as a variable, particularly characterized in that after crystallization has occurred, the separation of a solid from the mother liquid is safely effected irrespective of the high pressure by providing a filter structure made of a cylindrical metal mesh layer structure and a cylindrical reinforcing member backing it up.
Claims9
Pressure crystallization equipment comprising:
- a cylindrical high pressure vessel having an inner surface;
- means for establishing a pressure of at least 500 atmospheres within said vessel;
- and
- a filter structure disposed within said vessel and being fixed against substantial radial and axial displacement with respect to said vessel, said filter structure comprising a cylindrical metal mesh structure having at least two layers of mesh sintered together and a reinforcement disposed between said cylindrical metal mesh structure and said inner surface of said vessel for backing up said cylindrical metal mesh structure, said reinforcement and said cylindrical metal mesh structure being joined together at least at opposite ends thereof, there being at least one liquid flow path through said reinforcement, wherein a differential pressure between an inside and an outside of said filter structure is maintained by the inner surface of said vessel.
Pressure crystallization equipment as defined in any of the claims 1, 2, 5 or 3, further comprising a solid phase diffusion layer interfacially produced between the cylindrical metal mesh layer structure and the cylindrical reinforcement.
Dependencies are inferred from the claim text.