Hydrothermal preparation method of editpotassium cyanide solution

Hydrothermal preparation method of editpotassium cyanide solution

  • CN 104,773,743 A
  • Filed: 04/10/2015
  • Published: 07/15/2015
  • Est. Priority Date: 04/10/2015
  • Status: Active Application
First Claim
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1. the hydrothermal preparing process of a potassium cyanide solution, take the Tripotassium iron hexacyanide as raw material, comprise dissolving, hydro-thermal reaction and be separated each unit process, it is characterized in that:

  • polytetrafluoroethyllining lining iron cyanogen China potassium solution being placed in water heating kettle, 140 ~ 250 DEG C of insulations 24 ~ 72 hours after water heating kettle sealing, hydro-thermal reaction terminates to add the KOH solid being three times in solute Tripotassium iron hexacyanide molar weight in backward reaction solution, filters out Fe after stirring and dissolving 2o 3precipitation, finally obtains the potassium cyanide solution of respective concentration.

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