The production of environment-friendly type precious metal dressing agent and using method

The production of environment-friendly type precious metal dressing agent and using method

  • CN 102,321,807 B
  • Filed: 07/13/2011
  • Issued: 07/29/2015
  • Est. Priority Date: 07/13/2011
  • Status: Active Grant
First Claim
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1. the production method of environment-friendly type precious metal dressing agent, it is characterized in that:

  • by yellow prussiate of potash and urea mixing, be put in reactor, sneak out in journey slow liter, add pH adjusting agent, after being heated to molten state, melts pH value is made to be 8-14, keep melt temperature 5-60 minute, be cooled to normal temperature, obtain product;

    Wherein the part by weight of yellow prussiate of potash and urea is 1;

    (1-6);

    Described precious metal is gold and silver, copper;

    The described melts that makes melts pH value be 8-14 to be to take a morsel detects sample hot-cold lysis and measure pH value after water;

    Described yellow prussiate of potash comprises the wherein one in yellow prussiate of soda and yellow prussiate of potash;

    Described pH adjusting agent comprises one or more the mixture in sodium hydroxide, potassium hydroxide, sodium carbonate, sodium bicarbonate, salt of wormwood and bicarbonate of ammonia.

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