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Method for intensively removing impurity ions in ammonium dihydrogen phosphate by utilizing hydrodynamic cavitation

A technology of ammonium dihydrogen phosphate and hydraulic cavitation, which is applied in the direction of separation methods, chemical instruments and methods, phosphate, etc., to achieve the effect of strengthening the cavitation effect, high efficiency, and low energy consumption

Pending Publication Date: 2022-01-07
GUANGXI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the advantages of low energy consumption, low cost, easy control and industrial scale-up, hydrodynamic cavitation technology has attracted extensive attention in the fields of biofuel synthesis, wastewater treatment, emulsification, etc., but it has not been studied in the field of liquid-liquid extraction. and application

Method used

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  • Method for intensively removing impurity ions in ammonium dihydrogen phosphate by utilizing hydrodynamic cavitation
  • Method for intensively removing impurity ions in ammonium dihydrogen phosphate by utilizing hydrodynamic cavitation
  • Method for intensively removing impurity ions in ammonium dihydrogen phosphate by utilizing hydrodynamic cavitation

Examples

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Effect test

Embodiment 1

[0047]Example 1: using a percussive hydraulic apparatus 3 cavitation geometrical parameters extracted sequence number 1 for schedule, the organic and aqueous phases were preheated to the reaction temperature by the circulation pump respectively the aqueous phase and the organic phase was fed to the feed inlet section ⅰ, entrance ⅱ percussive hydraulic cavitation extraction apparatus, while utilizing plus pump are input gas to the organic phase and aqueous phase feed solution, to control the system pressure by adjusting the circulating speed of the pump feeding the aerated was sequentially through impingement mixing section and reduced diameter section, intensive mixing is obtained at the end of cavitation and the throat section diameter segment generated at the occurrence of the mass transfer process, the extraction fluid is circulated through the stabilization stage is returned to the storage tank; organic phase and the aqueous phase was extracted in a solution percussive hydraul...

Embodiment 2

[0050] Example 2: using the extracted Percussive apparatus having hydrodynamic cavitation No. 6 in Table 1 were geometric parameters, the organic and aqueous phases were preheated to the reaction temperature by the circulation pump respectively the aqueous phase and the organic phase liquid feed conveyor the percussive inlet section of hydrodynamic cavitation extraction equipment ⅰ, entrance ⅱ, while the use of added air pump respectively to the organic phase and the aqueous liquid input gas phase material, to control the system pressure by adjusting the circulating speed of the pump after filling stock solution sequentially through impingement mixing section and reduced diameter section, intensive mixing is obtained at the end of cavitation throat section and enlarged diameter section at the resulting mass transfer process occurs, the fluid returned to the reservoir through the stabilization stage extraction cycle is carried out; the organic phase and the aqueous phase was extrac...

Embodiment 3

[0052] Example 3: use of percussive hydraulic cavitation extraction apparatus having a serial number of Schedule 1 is 2,3,4 geometric parameters, the organic and aqueous phases were preheated to the reaction temperature by the circulation pump respectively the organic and aqueous phase feed was delivered to the percussive hydraulic cavitation extraction apparatus inlet section ⅰ, entrance ⅱ, while the use of added air pump respectively to the organic phase and the aqueous liquid input gas phase material, to control the system pressure by adjusting the circulating speed of the pump, aerated feed liquid sequentially through the impingement mixing section and the reduced diameter section to give strong mixing in the throat section cavitation enlarged diameter section at the end and the generated mass transfer process occurs, the fluid returned to the sump through the stabilization stage circulating extraction; the organic phase and the aqueous phase was extracted solution process con...

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Abstract

The invention relates to a method for intensively removing impurity ions in ammonium dihydrogen phosphate by utilizing hydrodynamic cavitation, which comprises the following steps of respectively preheating an organic phase extractant solution and a water phase ammonium dihydrogen phosphate solution containing impurities to reaction temperatures, and respectively conveying organic phase and water phase feed liquid to impact type hydrodynamic cavitation extraction equipment through a circulating pump. The equipment comprises two inlet sections, an impact mixing section, a reducing section, a throat pipe section, an expanding section and a stabilizing section, gas is input into organic-phase and water-phase feed liquid through a gas adding pump, the pressure of a system is controlled by adjusting the rotating speed of a circulating pump, the gas-added feed liquid sequentially flows through the impact mixing section and the reducing section, the liquid is intensively mixed under the cavitation effect generated at the tail end of the throat pipe section and the expanding section, the mass transfer process occurs, and the fluid flows back to the storage tank through the stable section to be circularly extracted. According to the method, the extraction process can be completed within a short time, the extraction rate is greatly increased, and the method has the advantages of being easy to operate, low in energy consumption, easy for industrial large-scale production and the like.

Description

Technical field [0001] The present invention relates to a method for removing impurity ions to ammonium dihydrogen phosphate, and in particular relates to a method of extraction apparatus for removal of ammonium dihydrogen phosphate impurity ions percussive utilizing hydrodynamic cavitation. Background technique [0002] Monoammonium phosphate (MAP) is an important phosphate products has important applications in agriculture, fire protection, food and medicine. MAP production methods are a thermal process and a wet phosphoric acid process phosphoric acid. In recent years, wet phosphoric acid method because of its low cost, low energy consumption, low pollution, etc. people's attention. However, the production of wet process phosphoric acid may remain in the MAP many impurities, such as Fe 3+ Al 3+ Mg 2+ And other metal impurities. These impurities produce crystal morphology and product quality have important implications, particularly MAP preparation of food grade or better use o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B25/28B01D11/04
CPCC01B25/28B01D11/04B01D11/0473
Inventor 曹艳黄永春黄承都张昆明任仙娥
Owner GUANGXI UNIVERSITY OF TECHNOLOGY
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