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Position: Home > Articles > Review on compound fertilizer production by decomposing medium and low grade phosphate rock with urea sulfate Phosphate & Compound Fertilizer 2012,27 (5) 10-12

硫酸脲分解中低品位磷矿制复肥综述

作  者:
杨跃华;齐涛
单  位:
云南云天化国际化工股份有限公司技术中心
关键词:
尿素;硫酸;硫酸脲;分解中低品位磷矿;复合肥
摘  要:
以硫酸脲分解中低品位磷矿制备NP复肥是近年来备受各国关注的新工艺。综述了国内外用尿素与硫酸制备硫酸脲的方法,以及用硫酸脲分解磷矿生产复肥的过程机制、工艺流程与主要工艺条件,所制产品富含N、P、S、Ca和微量元素,利于作物平衡施肥。
译  名:
Review on compound fertilizer production by decomposing medium and low grade phosphate rock with urea sulfate
作  者:
YANG Yue-hua,QI Tao(Technology Center,Yunnan Yuntianhua International Chemical Co.,Ltd,Kunming,Yunnan 650113,China)
关键词:
urea;sulfuric acid;urea sulfate;decomposing medium and low phosphate rock;compound fertilizer
摘  要:
The new technology of NP compound fertilizer production by decomposing medium and low grade phosphate rock with urea sulfate is concerned in recent years.The production methods of polymer urea sulfate with urea and sulfuric acid;The mechanism,process and process conditions of compound fertilizer production by decomposing phosphate rock with urea sulfate are introduced,the product is rich in N,P,S,Ca and trace elements,and is favorable for balanced fertilization.

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