The process flow of environmentally friendly gold beneficiation agent in the heap leaching production of oxidized gold ore is the same as that of using sodium cyanide, and it is easy to operate and promote. 1. The usage process of sodium cyanide is the same as that of sodium cyanide in mining production. It is mainly suitable for heap leaching and pool leaching processes of fine-grained gold and silver ores. 2. The environmentally friendly gold selection agent product is an alkaline inorganic compound. Lime, caustic soda, etc. are used as stabilizers for this product. The pH value is 10 to 12. 3. The environmentally friendly gold selection agent product is a solid block and is easily soluble in water. , the dosage is about 1.5 to 4.5 ten thousandths of the mineral amount. 4. In accordance with the responsibility requirements for safe production in mines, establish and improve the responsibility system for the safe production and use of this drug to prevent humans and animals from accidentally eating environmentally friendly gold-selecting agents. Transportation and storage: Transport according to general chemical transportation requirements. Moisture-proof, waterproof, sealed, isolated and stored environmentally friendly gold selection agent.