When the sealed gold-dividing furnace caught fire, every once in a while, Fu Yuanqi on the side muttered to himself, constantly adding saltpeter to the inside from the moving hole to help burn and increase heat...

Among the crowd, Han Yu was stunned. These natural artificial fates were difficult for him to see in Confucian classics.

Soon, the refining of the gold-dividing furnace was completed. After it was opened, Fu Yuanqi, who had covered his face with wet wipes, and several soldiers pointed to the silky white object condensed on the ash, "Duke Wei, this is the refined platinum."

And under the grass ash is full of red and yellow powder, "This is silver rust, also called yellow elixir, but in fact it is all lead."

It turns out that when the flame of the gold-dividing furnace is burned, the lead blocks are first oxidized at high temperature and separated from the silver, then seeps through the grass ash and flows into the bottom of the furnace; while the silver remains on the grass ash.

After a while, Gao Yue twisted up the platinum on the surface with his hands. He was very excited and said to the military officials who were congratulating around him: "This is the raw silver, that is, the platinum, our Yangzhou platinum!"

"Congratulations to Mr. Wei, silver pits are divided into three types: one with silver, one with silver and lead mixture, and the other with silver and copper mixture. As long as the latter two are used to use a certain gold-dividing method, not only can silver be refined, but more copper can be refined. A bucket of reef sand can produce five taels of silver on average."

Gao Yue nodded happily, this was the "gray blowing method" that almost ran through the entire medieval era.

"That is to say, most of the silver pits in eastern Zhejiang and Fujian are the latter two?"

"Yes, that's right." Fu Yuanqi answered hurriedly.

Gao Yue was overjoyed and said that the five thousand diggers would be ordered tomorrow and take a boat to Lingqu Canal to dig the canal to Du Gong.

As for Fu Yuanqi, he immediately came to the palace in Yangzhou, gathering Taoist priests who "chemistry" from all over Huaiyang to learn about it.

Because Gao Yue was not satisfied, he clearly set the research goals of the palace for Fu Yuanqi. "This method of gold dividing is good, but it costs too much charcoal, willow charcoal, grass ash, etc. I heard that there is also a silver refining technique, which is made of mercury. This method is more convenient than the method of gold dividing is good, so you can study it carefully."

Fu Yuanqi said in embarrassment that he only knew that he could use mercury to make fake silver and use mercury to refine real silver, which was unheard of.

"In this way, you can stand up the palace and temple. As long as the master is diligent in his studies, it will take five years if he doesn't work for three years, and it will take ten years if he doesn't work for five years. As long as he succeeds, you will be a person who has been to the next generation for a hundred and a thousand years." Obviously, Gao Yue is determined to win this method of mercury silver refining.

At the same time, Du You also sent 10,000 hu of the King of Rings with a boat, and Gao Yue ordered a large-scale trial planting in Chuzhou.

With the pursuit of mercury silver refining method, Fu Yuanqi took the order and left.

Then Gao Yue couldn't wait to summon Hu Daoji, the "jewel king" of Hu merchants. He had a younger brother named Hu Daocheng and hired several Persian craftsmen who were proficient in coin casting. Gao Yue spent a lot of money to make them create the first standard silver coin in the history of the Celestial Empire, "Xingyuan Silver Treasure" (in the history of the plane, the first standard silver coin in the Celestial Empire was the "Cheng'an Treasure Goods" minted by the Jin Dynasty, but the circulation time was not long and there was no real thing).

Xingyuan silver treasures were made at one time, and Gao Yue announced that each silver treasure weighed one tael, and the quality was nine-point eight, which was as good as two silos of copper coins. Then Gao Yue distributed all the batch of Xingyuan silver treasures to the women and children in the military palace.

This silver treasure is exquisitely cast, with a hole in the middle, with reliefs and words. The relief is the symbol of the Wuyi Army's black and white Pixiu. The text is the name of the Xingyuan year, and the words "Huaiyang Baohuo".

Guo Zaizhen's sons got two silver treasures and happily went to the Chanzhi Temple market to buy pastries and utensils. As a result, the dealers did not dare to recognize them. So the sons went home crying and said that this silver treasure was a silver treasure, which was worthless at all. The Duke of Wei lied to us, which made Yuwen Saijin laugh and cry.

In the next few days, Gao Yue couldn't put down the cast "Xingyuan Silver Treasure" and played with it repeatedly.

The promoter Han Yu was a little displeased, so he advised that platinum and beauty are the same as dogs and horses, but it can disrupt people's will. Duke Wei should just put it in the warehouse as soon as possible!

"Treasure? No, this road will not place these silver coins in the warehouse, but will be connected in Huaiyang. Now it is not recognized on the market. It is because the amount is too small. Then this road will inform the two roads in eastern Zhejiang and Fujian. They set up a plan on the side of the mine, burning a large amount of platinum, and then minting it into coins. After that, the silver treasure will be the main currency, and copper coins will be the auxiliary currency, so trade will be further developed. In addition, this road will soon start the second batch of ships to send Japanese deportations."

"Are you going to trade gold and silver for Japan?" Han Yu felt a vague premonition in his heart.

"Don't panic, the Japanese are not fools, and they will not be unaware of the harm of the outflow of gold and silver, so we first trade for normal goods."

"Normal goods?"

Gao Yue nodded: "Cotton cloth, raw silk, silk, porcelain, paper, and war horses. These things are all necessary for life. I just need Japan to exchange for sulfur. When the demand in Japan increases and becomes greater and more inseparable from us, I will take the opportunity to enter the copper coins. Soon they will be completely inseparable from my Tang copper coins. Knowing the benefits of copper coins, it will be convenient to use copper coins to get it. Oh, it is a transaction of gold and silver in Japan. Money must be of great value in Japan, so gold and silver.

It's cheap. I made a one-tall silver treasure money in Huaiyang, which can be worth two jin of coins. In Japan, two jin of coins may buy a full two jin of silver. One or two jin of coins can be taken away. Ah no, it is to get double profits. This is the way to make money. After the circulation of silver coins is equivalent to six million to eight million jin of coins, Zhongtu will soon have to use my Huaiyang silver coins. I will be able to manipulate it in Yangzhou by taking the 'Silver Road' to Haidong. Ah no, it will benefit the whole world."

"It's so dirty..." Han Yu looked at Gao Yue, who was dancing with eyebrows and sighed in his heart.

Gao Yue said it would do his best. Soon he called Zhang Xi and Zhang Baogao to come and asked Zhang Baogao first: "You drifted to Mingzhou, eastern Zhejiang, and the route was the same as if this route had sent a ship to Japan before."

Zhang Baogao replied yes, the route between Tang, Silla and Japan is fixed, because the ocean is not long among the three kingdoms, and even a flat-bottomed sea ship can complete the journey.

"What do you use to navigate?" Gao Yue asked curiously.

Zhang Baogao widened his eyes and said, "Navigation...No need for navigation. Anyway, starting from our Wandao County, just walk slanted and slanted, you can reach Yangzhou or Mingzhou!"

Then, Zhang Baogao was afraid that Gao Yue would not understand, so he repeatedly gestured and said, "It was slanted and oblique."

Gao Yue understood that according to Zhang Baogao, if the boat travels from Yangzhou, as long as you follow the fixed diagonal line, you can reach Wandao County, the southernmost tip of Silla. Then, it is the Tsushima Strait. Whether you open your eyes or close your eyes, you can reach Tsushima and Tsushima in Japan. Then you can directly enter Setou and arrive in Namba in Japan.

So wherever you need any navigation tools, it depends entirely on experience, or just look at the sun and stars in nature.

"Bao Gao, you and Zhang Xi followed this time, with the purpose of asking Japan to accept fixed trade."
Chapter completed!