Method for reclaiming tellurium from copper anode slime by microwave acid leaching

Method for reclaiming tellurium from copper anode slime by microwave acid leaching

  • CN 103,552,996 A
  • Filed: 10/21/2013
  • Published: 02/05/2014
  • Est. Priority Date: 10/21/2013
  • Status: Active Application
First Claim
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1. microwave acid dipping reclaims a method for tellurium from copper anode mud, it is characterized in that carrying out according to following steps:

  • (1) to adding water in copper anode mud, carry out coarse adjustment slurry, sieve degranulation diameter is greater than the grains of sand class impurity of 5mm, drain away the water, to adding concentration in the copper anode mud after draining away the water, be that the sulfuric acid of 50 ~ 400g/L is sized mixing, obtain copper anode mud slurry, control the weight concentration of copper anode mud in copper anode mud slurry 1 ~ 30%;

    (2) the copper anode mud slurry of gained is placed in to microwave reaction stove, to passing in copper anode mud slurry or adding oxygenant, adjusting microwave frequency is 2450MHz, microwave heating power is 100 ~ 900w, discharging after Leaching reaction 1 ~ 20min under normal pressure, carry out solid-liquid separation, obtain the leach liquor containing tellurium.

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