Column-type solid-liquid countercurrent contact apparatus, solid particle washing apparatus, and method

Patent metadata

Field	Value
Publication number	US-9339778-B2
Application number	US-201113581946-A
Country	US
Kind code	B2
Filing date	Feb 23, 2011
Priority date	Mar 1, 2010
Publication date	May 17, 2016
Grant date	May 17, 2016

Abstract

A column-type solid-liquid countercurrent contact apparatus, a washing apparatus for solid particles such as poly(arylene sulfide) (PAS) particles, a PAS manufacturing apparatus, a method of solid-liquid countercurrent contact, a method of washing solid particles such as PAS particles, and a method of manufacturing PAS, wherein a column top part, a column body part, and a column bottom part are included, the column body part is provided with a plurality of stirring chambers connected in the vertical direction and mutually divided by a ring-shaped partitioning plate, a paddle blade (a blade diameter/a diameter of the stirring chamber≧0.65 and the blade diameter/the diameter of the stirring chamber≦0.10) and a baffle are disposed at each of the plurality of stirring chambers, and a disc having a size covering at least a part of a communication opening positioned below the paddle blade is attached to a rotating shaft or to the paddle blade.

First claim

The invention claimed is:

1. A column-type solid-liquid countercurrent contact apparatus comprising a column top part, a column body part, and a column bottom part, for causing solid particles and a liquid to be subjected to countercurrent contact, the column body part including:
a plurality of stirring chambers connected in a vertical direction and mutually divided by each of ring-shaped partitioning plates having a communication opening in the center thereof,
each of the plurality of stirring chambers including:
a paddle blade fixed to a shared rotating shaft passing through the communication opening of each of the ring-shaped partitioning plates, and satisfying the following formulas (1) and (2):
(a blade diameter of the paddle blade)/(a diameter of the stirring chamber)≧0.65   formula (1)

(a blade width of the paddle blade)/(the diameter of the stirring chamber)≦0.10   formula (2);

at least one baffle extending in the vertical direction along an inner wall surface of the column body part; and
a disc having a size covering at least a part of the communication opening positioned below the paddle blade, and being attached to the paddle blade so as not to have a gap between a circumference of the rotating shaft and the disc.

2. The column-type solid-liquid countercurrent contact apparatus according to claim 1 , wherein
(a) the column top part includes a solid particle inlet through which the solid particles or a slurry containing the solid particles are supplied,
(b) the column top part includes, at an upper part than the solid particle inlet, a liquid outlet through which the liquid is discharged,
(c) the column bottom part includes a liquid inlet through which a liquid for contact with the solid particles is supplied, and
(d) the column bottom part includes, at a lower part than the liquid inlet, a processed product outlet through which a processed product is removed, the processed product resulting from the solid particles being subjected to contact process with the liquid for contact.

3. The column-type solid-liquid countercurrent contact apparatus according to claim 1 , wherein the paddle blade is a flat paddle blade.

4. The column-type solid-liquid countercurrent contact apparatus according to claim 1 , wherein the paddle blade is disposed at a lower half region of each of the stirring chambers.

5. The column-type solid-liquid countercurrent contact apparatus according to claim 1 , wherein a ratio of an area of the communication opening of each of the ring-shaped partitioning plates in a horizontal direction to a cross-sectional area of each of the stirring chambers in the horizontal direction is within a range of 4 to 25%.

6. The column-type solid-liquid countercurrent contact apparatus according to claim 1 , wherein the communication opening has a circular shape.

7. The column-type solid-liquid countercurrent contact apparatus according to claim 6 , wherein the disc has a circular shape, and a diameter thereof is larger than that of the rotating shaft and has a ratio within a range of 0.3 to 1.2 times the diameter of the communication opening of each of the ring-shaped partitioning plates.

8. The column-type solid-liquid countercurrent contact apparatus according to claim 1 , wherein a ratio H/D between a height H and an inner diameter D of each of the stirring chambers is within a range of 0.2 to 3.0.

9. The column-type solid-liquid countercurrent contact apparatus according to claim 1 , wherein the solid particles are poly(arylene sulfide) particles.

10. A solid particle washing apparatus comprising the column-type solid-liquid countercurrent contact apparatus according to claim 1 .

11. A poly(arylene sulfide) manufacturing apparatus comprising the column-type solid-liquid countercurrent contact apparatus according to claim 1 .

12. A method of solid-liquid countercurrent contact of solid particles using the column-type solid-liquid countercurrent contact apparatus according to claim 1 , wherein the method comprises inputting the solid particles into the apparatus such that the particles move downward through the stirring chambers while liquid moves upward through the stirring chambers.

13. A method of washing solid particles using the washing apparatus according to claim 10 , wherein the method comprises inputting the solid particles into the apparatus such that the particles move downward through the stirring chambers while liquid moves upward through the stirring chambers.

14. A method of solid-liquid countercurrent contact of poly(arylene sulfide) particles using the column-type solid-liquid countercurrent contact apparatus according to claim 1 , wherein the method comprises inputting the particles into the apparatus such that the particles move downward through the stirring chambers while liquid moves upward through the stirring chambers.

15. A method of manufacturing poly(arylene sulfide) using the column-type solid-liquid countercurrent contact apparatus according to claim 1 , wherein the method comprises inputting poly(arylene sulfide) particles into the apparatus such that the particles move downward through the stirring chambers while liquid moves upward through the stirring chambers.

16. A method of washing poly(arylene sulfide) particles using the washing apparatus according to claim 10 , wherein the method comprises inputting the particles into the apparatus such that the particles move downward through the stirring chambers while liquid moves upward through the stirring chambers.

Assignees

• Koizumi Tomoyoshi
• Kikuchi Kimihiko
• Kureha Corp

Inventors

• Koizumi Tomoyoshi
• Kikuchi Kimihiko

Classifications

• B01J8/008 Primary

  Details of the reactor or of the particulate material; Processes to increase or to retard the rate of reaction (B01J8/0285, B01J8/067, B01J8/087, B01J8/1836 take precedence) · CPC title

• C07C319/14

  of sulfides · CPC title

• C08L71/00

  Compositions of polyethers obtained by reactions forming an ether link in the main chain (of polyacetals C08L59/00; of epoxy resins C08L63/00; of polythioether-ethers C08L81/02; of polyether-sulfones C08L81/06); Compositions of derivatives of such polymers · CPC title

• B01J2208/00867

  inside the bed, e.g. rotary mixer · CPC title

• B01J2208/0084

  inside the bed, e.g. baffles · CPC title