Device and method for producing potassium peroxymonosulfate composite salt based on jet reactor

A technology of potassium hydrogen peroxymonosulfate composite salt and jet reactor, which is applied in the chemical industry, can solve the problems of increased energy consumption, high energy consumption, long reaction period, etc. Effect

Pending Publication Date: 2022-04-12
LIAOYANG BOSHI FLUID EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation process of potassium hydrogen persulfate compound salt generally adopts tank reactor and mechanical stirring. The disadvantages of this preparation equipment are low heat transfer and mass transfer efficiency; low active oxygen content, long reaction cycle, high energy consumption, and low energy consumption. The increase leads to rising costs, which is not conducive to industrial production

Method used

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  • Device and method for producing potassium peroxymonosulfate composite salt based on jet reactor
  • Device and method for producing potassium peroxymonosulfate composite salt based on jet reactor

Examples

Experimental program
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Effect test

Embodiment 1

[0042] The production plant of potassium hydrogen persulfate compound salt based on jet reactor, its structural schematic diagram is as follows figure 1 As shown, the schematic diagram of the partial structure of the jet tube oxidation reactor 1 is as follows figure 2 As shown, it includes sequentially connected jet tube oxidation reactor 1, jet supplementary oxidation reactor 2, acid gas absorption tower 3, mixing tank 4, jet neutralization reactor 5, crystallizer I6, crystallizer II7, and crystal slurry tank 8, horizontal double-drum centrifuge 9, fluidized bed drier 10; Described jet tube type oxidation reactor 1 is used for hydrogen peroxide oxidizing concentrated sulfuric acid to generate peroxymonosulfuric acid (H 2 SO 5 ); The jet supplemental oxidation reactor 2 is used for ozone supplementary oxidation concentrated sulfuric acid to generate peroxymonosulfuric acid (H 2 SO 5 ); the acid gas absorption tower 3 is used for absorbing the acid gas produced in the oxida...

Embodiment 2

[0060] The potassium hydrogen persulfate compound salt production method based on the jet reactor based on the device described in embodiment 1 may further comprise the steps:

[0061] Described step (1) 123kg / h raw material concentrated sulfuric acid (mass content 98%) enters the concentrated sulfuric acid cooler 1-2 through concentrated sulfuric acid pump 1-1 and cools, and 84kg / h raw material hydrogen peroxide (mass content 50%) passes hydrogen peroxide pump 1-3 enter the hydrogen peroxide cooler 1-4 for cooling, and the cooled hydrogen peroxide is added with a stabilizer; the cooled concentrated sulfuric acid, cooled hydrogen peroxide, and stabilizer enter the coupler 1-5 of the jet tube oxidation reactor 1 , through the jet flow of the jet device 1-6, the oxidation reaction is carried out under the cooling of the cooling jacket 1-7 and the cooling spoiler element 1-8 of the tubular oxidation reactor; the oxidation liquid enters the jet flow supplementary oxidation reactor ...

Embodiment 3

[0072] The potassium hydrogen persulfate compound salt production method based on the jet reactor based on the device described in embodiment 1 may further comprise the steps:

[0073] Described step (1) 123kg / h raw material concentrated sulfuric acid (mass content 98%) enters the concentrated sulfuric acid cooler 1-2 through concentrated sulfuric acid pump 1-1 and cools, and 84kg / h raw material hydrogen peroxide (mass content 50%) passes hydrogen peroxide pump 1-3 enter the hydrogen peroxide cooler 1-4 for cooling, and the cooled hydrogen peroxide is added with a stabilizer; the cooled concentrated sulfuric acid, cooled hydrogen peroxide, and stabilizer enter the coupler 1-5 of the jet tube oxidation reactor 1 , through the jet flow of the jet device 1-6, the oxidation reaction is carried out under the cooling of the cooling jacket 1-7 and the cooling spoiler element 1-8 of the tubular oxidation reactor; the oxidation liquid enters the jet flow supplementary oxidation reactor ...

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Abstract

The invention discloses a device and a method for producing potassium peroxymonosulfate composite salt based on a jet reactor, and belongs to the technical field of chemical engineering. The device comprises a jet pipe type oxidation reactor, a jet supplement oxidation reactor, an acid gas absorption tower, a mixing tank, a jet neutralization reactor, a crystallizer I, a crystallizer II, a crystal slurry tank, a horizontal double-drum centrifuge and a fluidized bed dryer. During production, secondary jet oxidation is carried out, and heat transfer and mass transfer are enhanced by the jet tubular oxidation reactor, the jet supplementary oxidation reactor and the jet neutralization reactor; mother liquor and steam condensate are subjected to flash evaporation to recover secondary water vapor to provide an auxiliary heat source for the fluidized bed dryer, and the mother liquor is recycled; and the quality of the prepared potassium peroxymonosulfate composite salt is higher than the national standard of industrial products. The technology is mature, continuous in operation, high in automation degree, capable of recycling resources and environmentally friendly, the device comprehensively saves energy by 10%, and the content of active oxygen is increased by 1%-2%.

Description

Technical field: [0001] The invention belongs to the technical field of chemical industry, and in particular relates to a jet reactor-based potassium hydrogen persulfate compound salt production device and method. Background technique: [0002] Potassium hydrogen persulfate (2KHSO 5 ·KHSO 4 ·K 2 SO 4 ) is a stable, convenient, and widely used excellent oxidizing agent. For decades, countries all over the world have been exploring new approaches to synthesis and preparation, and have taken increasing production and increasing active oxygen content as the goal of further research. At present, the industrialized method for preparing potassium monopersulfate compound salt is the sulfuric acid method. The preparation process of potassium hydrogen persulfate compound salt generally adopts tank reactor and mechanical stirring. The disadvantages of this preparation equipment are low heat transfer and mass transfer efficiency; low active oxygen content, long reaction cycle, high ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J19/26C01B15/08B01D53/96B01D53/78B01D53/40B01D9/00B01D3/06
Inventor 王猛周士海刘文涛
Owner LIAOYANG BOSHI FLUID EQUIP
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