Device for rapidly and efficiently reducing content of ammonium chloride in acetamidine hydrochloride mother liquor

A technology of acetamidine hydrochloride mother liquor and ammonium chloride, which is applied in the field of devices for reducing the content of ammonium chloride in acetamidine hydrochloride mother liquor, can solve the problems of insufficient removal of ammonium chloride, excessive ammonium chloride content, and more frozen brine, etc. Achieve the effects of shortening the production cycle, reducing the content, and achieving great social and economic benefits

Inactive Publication Date: 2017-01-04
YICHANG HENGYOU CHEM
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0002] In the existing production of acetamidine hydrochloride, due to the certain solubility of ammonium chloride in the ammoniated mother liquor, insufficient removal of the dissolved ammonium chloride in the ammoniated mother liquor will cause the ammonium chloride content of the concentrated mother liquor to exceed the industry requirement by 0.5% standard
Utilizing the characteristic that the solubility of ammonium chloride changes greatly with temperature, the ammonium chloride in the mother liquor can be fully separated, but since the ammonium chloride precipitated by cooling is suspended in the mother liquor in the form of very fine particles, it is difficult to use general sedimentation or filtration methods. It takes a long time to settle or invest in more labor for repeated centrifugation, and it also consumes more frozen brine

Method used

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  • Device for rapidly and efficiently reducing content of ammonium chloride in acetamidine hydrochloride mother liquor

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Embodiment Construction

[0011] The present invention will be further described below in conjunction with the examples, but the protection scope of the present invention is not limited to the scope expressed in the examples.

[0012] Such as figure 1 As shown, a device for quickly and efficiently reducing the content of ammonium chloride in acetamidine hydrochloride mother liquor includes a tank body 1, and the inside of the tank body 1 is provided with multiple sets of overflow filter plates 2 alternately from top to bottom, and the inside of the tank body 1 The upper part is provided with a water inlet 3, the lower part is provided with a water outlet 4, and the bottom is provided with a silt discharge port 5; the water outlet 4 is arranged on the side wall of the tank body 1, and is located on the other side of the opening of the bottom overflow filter plate. side.

[0013] The tank body 1 is also provided with a baffle plate 6 vertically arranged in the tank body 1 to separate the water outlet 4 ...

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Abstract

The invention discloses a device for rapidly and efficiently reducing the content of ammonium chloride in acetamidine hydrochloride mother liquor. The device comprises a tank, inside which multiple overflow filter panels are arranged in a staggered manner from top to bottom. The upper part of the tank is provided with a water inlet, the lower part of the tank is equipped with a water outlet, and the bottom is provided with a drainage port. The water outlet is arranged on the sidewall of the tank and positioned at the opposite side of the opening of the lowest overflow filter panel. By potential difference overflow, multistage settlement and filtering, fine ammonium chloride particles precipitated out of the acetamidine hydrochloride mother liquor are separated rapidly and efficiently. Thus, the content of ammonium chloride in an acetamidine hydrochloride product is effectively reduced. No power source is required, and energy is saved. In addition, the separation is rapid and efficient. Production period of the product can be shortened, corresponding capital investment is reduced, and great social benefit and economic benefit can be generated.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a device capable of rapidly and efficiently reducing the ammonium chloride content in acetamidine hydrochloride mother liquor in the production of acetamidine hydrochloride. Background technique [0002] In the existing production of acetamidine hydrochloride, due to the certain solubility of ammonium chloride in the ammoniated mother liquor, insufficient removal of the dissolved ammonium chloride in the ammoniated mother liquor will cause the ammonium chloride content of the concentrated mother liquor to exceed the industry requirement by 0.5% standard. Utilizing the characteristic that the solubility of ammonium chloride changes greatly with temperature, the ammonium chloride in the mother liquor can be fully separated, but since the ammonium chloride precipitated by cooling is suspended in the mother liquor in the form of very fine particles, it is difficult to use general sed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D36/04C07C257/14
Inventor 鄢国祥张力潘中华陈京
Owner YICHANG HENGYOU CHEM
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