Device for extracting iodine from wet process phosphate acid liquor

A technology of phosphoric acid liquid and extraction device, applied in the field of iodine, which can solve the problems of high extraction cost of iodine resources, short operation cycle of extraction tower, easy plugging of packing, etc., achieve long-term effective and stable operation, increase extraction efficiency, and extend contact time Effect

Active Publication Date: 2012-07-18
WENGFU (GRP) CO LTD
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Problems solved by technology

However, iodine resources are scarce at present, and in the existing technology, most of the equipment for extracting iodine resources is a traditional packed tower, which

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  • Device for extracting iodine from wet process phosphate acid liquor
  • Device for extracting iodine from wet process phosphate acid liquor
  • Device for extracting iodine from wet process phosphate acid liquor

Examples

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Embodiment

[0017] Example: as attached figure 1 -4 is an extraction device for extracting iodine from wet-process phosphoric acid. The device is a double-chamber cylindrical device composed of a shell 4 and an inner cylinder 3 . The inner cylinder 3 is an inner chamber 12 . The room is the outer chamber 13; the inner cylinder 3 is a porous cylinder with a fixed aperture, the inner chamber 12 has a circular top cover, and the center of the top cover is opened with a phosphoric acid liquid inlet 2; the bottom of the inner chamber 12 has a circular bottom plate, and the center of the bottom plate is installed There is a rotor 9, and 8 vortex baffles 6 are vertically installed on the wall of the inner cylinder 3; the top and bottom of the outer chamber 13 have slope-shaped cover plates, and the top slope-shaped cover plate has two symmetrically distributed extraction medium outlets 1 There are 2 symmetrically distributed acid liquid outlets 11 on the slope-shaped plate at the bottom, and a r...

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Abstract

The invention discloses a device for extracting iodine from wet process phosphate acid liquor. The device is double-chamber cylindrical equipment constituted by a casing and an inner barrel, wherein an inner chamber is arranged in the inner barrel, and an outer chamber is arranged between the casing and the inner barrel; the inner barrel is a porous cylinder body with a fixed pore diameter; a circular top cover is arranged at the top of the inner chamber; a phosphate acid liquor inlet is formed at the center of the top cover; a circular bottom plate is arranged at the bottom of the inner chamber; a rotor is mounted at the center of the bottom plate; eddy flow baffle plates are mounted on the wall of the inner chamber; a slope-shaped cover plate is mounted at the top as well as the bottom of the outer chamber; extract medium outlets are formed on the slope-shaped cover plate at the top, and acid liquor outlets are formed on the slope-shaped cover plate at the bottom; an annular porous distributing device is mounted at the middle of the outer chamber; and extract medium inlets are formed on the wall of the lower part of the casing and the bottom plate of the inner chamber respectively. The device provided by the invention has the characteristics of small size and simple structure; since no filler is used, the circumstance that wet process phosphate is blocked by filler can be avoided; and the device is novel energy-saving equipment with extremely high iodine extraction efficiency and low cost.

Description

technical field [0001] The present invention relates to iodine, and also to phosphoric acid, in particular, to a device for extracting iodine from wet-process phosphoric acid. Background technique [0002] Iodine is a rare resource. Iodine can be used to produce many industrial products and chemical reagents; iodine has a bactericidal effect, so it can be used as a fungicide; iodine is also an essential trace element for the human body; iodine deep-processed products are fine chemical products with broad market prospects. However, iodine resources are scarce at present, and in the existing technology, most of the equipment for extracting iodine resources is a traditional packed tower, which has the disadvantages of easy plugging of the packing and short operation period of the extraction tower, and the extraction cost of iodine resources is extremely high. [0003] In the Chinese patent database, patent applications involving extraction of iodine include No. 200820301317.9 ...

Claims

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Application Information

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IPC IPC(8): C01B7/14B01D11/04
Inventor 刘荆风杨毅冯克敏姚石林杨国行曾珍花
Owner WENGFU (GRP) CO LTD
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