Gold processing test project in Congo

XINHAI SOLUTION

• 01

  Raw ore leaching process: Raw ore leachingtest: Raw ore grinding, grinding fineness of -200 mesh 85%, using calcium oxideas protective alkali, the dosage is 5kg/t; when using non-cyanide leachingagent as leaching agent, the dosage is 3.5kg/ t. The gold leaching time is 24h,and the gold leaching rate can reach 92.37%.
  

• 02

  Raw ore filter heap leaching process: rawore filtering heap leaching cyanidation (leaching) test: raw ore filtering heapleaching time is 504(21×24 )h, cement dosage is 3% (ore weight), the dosage of non-cyanideleaching agent is 2.5kg/t, calcium oxide dosage is 3.5kg/t, the gold leachingrate can reach 77.12%. The infiltration effect was good during heap leaching.