Method for improving yield of urea phosphate prepared from wet-process phosphoric acid

Method for improving yield of urea phosphate prepared from wet-process phosphoric acid

The invention discloses a method for improving the yield of urea phosphate prepared from wet-process phosphoric acid, which comprises the following steps: mixing a crystallization promoting agent with wet-process phosphoric acid and urea, reacting, cooling, crystallizing, filtering and drying to obt...

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Hauptverfasser: LIU PENGFEI, WEN HUI, HU HONG, YANG RUISHAN, LIU SONGLIN, ZHANG ZHE, LIU FEI, HE XIAOYUN, WANG BAOMING, TANG JIANWEI, TAO SHAOCHENG, LIU YONG
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Sprache:chi ; eng
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ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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creator LIU PENGFEI
WEN HUI
HU HONG
YANG RUISHAN
LIU SONGLIN
ZHANG ZHE
LIU FEI
HE XIAOYUN
WANG BAOMING
TANG JIANWEI
TAO SHAOCHENG
LIU YONG
description The invention discloses a method for improving the yield of urea phosphate prepared from wet-process phosphoric acid, which comprises the following steps: mixing a crystallization promoting agent with wet-process phosphoric acid and urea, reacting, cooling, crystallizing, filtering and drying to obtain urea phosphate after the reaction is finished, or mixing wet-process phosphoric acid with urea for reaction, adding a crystallization promoter or a crystallization promoter-containing urea phosphate mother solution after the reaction is finished, cooling, crystallizing, filtering and drying to obtain the urea phosphate. The crystallization promoting agent is one or a mixture of more than two of ethylene glycol monomethyl ether, ethylenediaminetetraacetic acid and citric acid in any proportion. The urea phosphate produced by the method disclosed by the invention is crystal particles, reaches the industrial urea phosphate standard (GB/T27805-2011), can meet the market demand, and is low in cost, flexible in addin
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The crystallization promoting agent is one or a mixture of more than two of ethylene glycol monomethyl ether, ethylenediaminetetraacetic acid and citric acid in any proportion. 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subjects ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
title Method for improving yield of urea phosphate prepared from wet-process phosphoric acid
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