Urea phosphate processing system

The utility model relates to the field of urea phosphate processing, and discloses a urea phosphate processing system which comprises a phosphoric acid pretreatment unit and a urea phosphate synthesis unit, the phosphoric acid pretreatment unit comprises a phosphoric acid recovery tower, the upper p...

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Hauptverfasser: QING CAIXIA, CHEN GUOPING, CHEN MINGCUI, ZUO JIAO, NIE SHUANG
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creator QING CAIXIA
CHEN GUOPING
CHEN MINGCUI
ZUO JIAO
NIE SHUANG
description The utility model relates to the field of urea phosphate processing, and discloses a urea phosphate processing system which comprises a phosphoric acid pretreatment unit and a urea phosphate synthesis unit, the phosphoric acid pretreatment unit comprises a phosphoric acid recovery tower, the upper part of the phosphoric acid recovery tower is communicated with a waste phosphoric acid feeding pipe, and the middle part of the phosphoric acid recovery tower is communicated with a desalted water feeding pipe; the discharge end of the phosphoric acid recovery tower is connected with a reboiler; the urea phosphate synthesis unit comprises a reaction kettle and a continuous crystallizer. When waste phosphoric acid is pretreated, desalted water is introduced into the phosphoric acid recovery tower, so that the removal rate of heteroacid in phosphoric acid can be increased, and the yield of phosphoric acid is increased; after the urea phosphate is synthesized, various metal ions, especially heavy metal ions, brought i
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subjects ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
title Urea phosphate processing system
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