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US 4,557,830 AGranted
Packed column having pressure-absorbing mechanism
AssigneeAsahi Kasei Kogyo Kabushiki Kaisha
InventorsHatsuki Onitsuka, Shin Saito, Hideo Fukuda
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AssigneeAsahi Kasei Kogyo Kabushiki Kaisha
InventorsHatsuki Onitsuka, Shin Saito, Hideo Fukuda
Estimating the term…
When a packed column having a pressure-absorbing mechanism satisfies the following conditions, the pressure absorbing mechanism has a sufficient packings-supporting ability in spite of its simplicity, the disorder of flow of fluid is slight and the effect of separation of materials is high: (1) the inside diameter (D cm) is 10 cm or more, (2) the aforesaid pressure-absorbing mechanism comprises solid parts and passage spaces through which packings can pass, (3) the specified circumference ratios of most of said passage spaces are 10/D or more and their lengths in the flow direction are larger than the -1.5th power of the circumference ratio, (4) the above passage spaces exist within 1 cm from any position on the upper and lower sides of the aforesaid solid parts, and (5) the specified shielding degree of the pressure-absorbing mechanism is 0.01 or more and 0.8 or less.
A packed column having a pressure-absorbing mechanism which is used as a reaction column or a column for separating or exchanging solutes, wherein (1) the inside diameter [D(cm)] is 10 cm or more, (2) the pressure-absorbing mechanism comprises solid parts and passage spaces defined thereby, through which spaces packings can pass, (3) the circumference ratio as defined herein of most of the passage spaces is (10/D) or more and their lengths in the flow direction are larger than the -1.5th power of the circumference ratio and are not more than 16% of the column length, (4) the passage spaces exist within 1 cm from any position on the upper and lower sides of most of the aforesaid solid parts, and (5) the shielding degree as defined herein of the pressure-absorbing mechanism is 0.01 or more and 0.8 or less.
Dependencies are inferred from the claim text.