云南化工2024，Vol.51Issue(6)：71-73,3.DOI:10.3969/j.issn.1004-275X.2024.06.18
磷肥副产氟硅酸制备六水合氟硅酸锌及其真空生产工艺研究
Research on the Preparation of Zinc Fluosilicate Hexahydrate from Phosphate Fertilizer by-product Fluorosilicic Acid and Its Vacuum Production Process
蒋兴志 1马航 1李志祥 1万邦隆 1付宇杰 1杨宵 1沈映昆1
作者信息
- 1. 云南云天化股份有限公司研发中心,云南 昆明 650500
- 折叠
摘要
Abstract
Using by-products fluorosilicic acid and zinc oxide as raw materials,hexahydrate zinc fluorosilicate products were prepared through neutralization reaction.In order to explore the optimal process conditions for industrial preparation of hexahydrate zinc fluorosilicate products,reduce energy consumption,and improve product quality,the effects of process parameters such as reaction temperature,reaction time,material ratio,and concentration method on product content and yield were systematically studied.The results showed that under the process conditions of a reaction temperature of 30℃,a reaction time of 2 hours,a molar ratio of zinc oxide to fluorosilicic acid(calculated as H2SiF4 )of 1:1.2,and a concentration method of low-temperature vacuum evaporation concentration(evaporation temperature of 45℃-55℃),referring to the enterprise standard(Q/KHQ 001-2016),the first grade hexahydrate zinc fluorosilicate can be prepared,with a content of 98.92％ and a yield of 96.68％.关键词
副产氟硅酸/中和反应/六水合氟硅酸锌/降低能耗Key words
By-product fluorosilicic acid/Neutralization reaction/Hexahydrate zinc fluorosilicate/Reduce energy consumption分类
化学化工引用本文复制引用
蒋兴志,马航,李志祥,万邦隆,付宇杰,杨宵,沈映昆..磷肥副产氟硅酸制备六水合氟硅酸锌及其真空生产工艺研究[J].云南化工,2024,51(6):71-73,3.
