Potassium (poly)phosphate prodn. - from phosphoric acid and potassium chloride with air-sparging to remove hydrogen chloride
- 专利权人:
- 发明人:
- 申请号：
- BE19740147694
- 公开号：
- BE818945(A1)
- 申请日:
- 1974.08.16
- 申请国别(地区):
- 比利时
- 年份:
- 1974
- 代理人:
- 摘要：
The reaction is at P:K mole ratio 1-1.25, esp. 1-1.1:1. Product may be recovered as a glassy solid contng. 1.5% Cl and 15% P2O5 (free acid content); or it may be hydrolysed by heating with water to give a crystalline hydrolysis product which is esp. suitable for use in liquid fertiliser compsns. The hydrolysis is at 100-120, esp. 110 degrees C., and KCl/H3PO4 reaction is at 150-250 degrees, esp. 220-250 degrees C. Process suppresses formation of insol. metaphosphate.
- 来源网站：
- 中国工程科技知识中心
