nail jewelry wholesale How did ancient gold smelled? Intersection

metal honeycomb jewelry wholesale How the ancient gold was refined: the ancient alchemy was mainly through 5 processes:

1, the first process was grinding: first put the ore into the water pupa, crushed large lumps of ore through hydropower, Then grind it into powder with stone.

2, the second process is washing. It is to wash the ore powder in the water, remove the part that does not contain ore, and leave the powder containing more gold and silver.

3, the third process is called a group sintering. That is to say, mixing gold and silver powder and rice are mixed together into a ball, piled up with charcoal, remove sulfur sulfur and sintering into crispy mine groups.

4, the fourth process is called lead reduction smelting. Mix the lead of the mine group and fuse for chemical replacement to form a lead block containing gold and silver.

5, the fifth process is called ash blowing method. That is, put the lead blocks containing gold and silver on the gray ash, blow into the oxygen, and remove the lead block. Blowing away the grass and gray, you can harvest high -purity gold