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过磷酸钙尾气治理工艺的改进

作  者:
江设存
单  位:
湖南今天公司
关键词:
过磷酸钙;尾气治理;氟回收;氟硅酸
摘  要:
介绍回收过磷酸钙生产中含氟尾气 ,生产 2 4%商品氟硅酸 (液体 ) ,同时副产氟硅酸钠的工艺流程、设备选型、设备主要参数和防腐处理。装置投产后 ,运行良好 ,氟硅酸产品浓度在 2 4%以上 ,排放废气含氟量在 0 .1g/m3(标态、干 )以下 ,年综合经济效益达 38万元
译  名:
Improvement of technology for control & treatment of waste gas from SSP plant
作  者:
JIANG She cun ( Jintian Company, Hengyang, Hunan 421513, China)
关键词:
single superphosphate(SSP); tail gas treatment; recovery of fluorine; fluosilicic acid
摘  要:
The recovery of fluorine in tail gas of SSP production and the production of 24% commercial fluosilicic acid(liquid)with byproduct sodium silicofluoride are introduced in process, equipment and its working parameter, and corrosion protection. The plant has stable operation, its product concentration keeps more than 24%, the fluorine of exhaust waste gas less than 0.1 g/m 3(STD., Dry), total economic benefit is about 370 k RMB Yuan.

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