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CN101643226B 复分解循环法生产硝酸钾和氯化铵的方法 有权 转让 许可

  • 专利标题： 复分解循环法生产硝酸钾和氯化铵的方法
  • 专利标题（英）： Method for producing nitrate and ammonium chloride with double decomposition circulation method
  • 申请号： CN200910115875.5
    申请日： 2009-09-02
  • 公开(公告)号： CN101643226B
    公开(公告)日： 2010-11-17
  • 发明人: 赵家春
  • 申请人： 赵家春
  • 申请人地址： 江西省宜春市市经济开发区腾达化工有限责任公司
  • 专利权人： 赵家春
  • 当前专利权人： 江西金利达钾业有限责任公司
  • 当前专利权人地址： 江西省宜春市市经济开发区腾达化工有限责任公司
  • 代理机构： 宜春赣西专利代理事务所
  • 代理商 朱兵
  • 主分类号： C01D9/10
  • IPC分类号： C01D9/10 ;  C01C1/16
复分解循环法生产硝酸钾和氯化铵的方法
摘要：
本发明公开了一种复分解循环法生产硝酸钾和氯化铵的方法其包括以下方法步骤：以氯化钾、硝酸铵、水溶液为原料，控制反应溶液中Cl-和\或NH4+浓度分别为16-22％、7-12％，反应溶液温度为80-110℃；半成品KNO3结晶；KNO3结晶冲洗；复结反应；过滤、清洗泥渣、KNO3成品结晶控制结晶体成品中Cl-(以氯化物计)≤0.01％，NH4+(以铵盐计)≤0.05％；并将上述结晶体成品进行脱水处理至含水量≤3％，最后进行干燥至KNO3含水量≤0.1％即为KNO3成品；将上述各步滤液回收进行蒸发浓缩、加硝酸铵反应、分铵处理，结晶干燥制备NH4Cl产品，处理的滤液循环至步骤(1)。
摘要（英）：

The invention discloses a method for producing nitrate and ammonium chloride with a double decomposition circulation method, comprising the following steps of: taking potassium chloride, ammonium nitrate and water solution as raw materials; controlling the concentration of the CL<->and/or NH4<+>respectively to be 16-22% and 7-12% and the temperature of the reaction solution to be 80-100 DEGC; crystallizing a semi-finished product KNO3; washing KNO3 crystal; reacting by means of double jointing; filtrating, cleaning sludge, crystallizing the semi-finished product KNO3, and controlling the CL<->(counting with chloride) in the crystal finished product to be less than and equal to 0.01% and the NH4<+>(counting with ammonium salt) to be less than and equal to 0.05%; dehydrating the crystal finished product till that the water content is less than and equal to 3%, and drying till that the water content of the KNO3 is less than and equal to 0.1% to obtain the finished product of the KNO3; and recycling the filter liquor from the each step to concentrate in an evaporating way, reacting by adding with the ammonium nitrate, processing by means of ammonium dividing, crystallizing and drying to prepare the NH4CL product, and circulating the processed filter liquor to the step (1).

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