Daming: Grandpa Emperor, please get up and sit on my throne!

Although zinc oxide can also have similar reaction phenomena.

But in nature.

Zinc oxide is generally found in zincite, which has an easily recognizable appearance. It is a lens-like appearance with streaks of orange-yellow diamond luster and can be excluded during the initial screening.

Therefore, as long as this phenomenon occurs, it can be confirmed that there is high-alumina bauxite in this batch of screened materials.

This is no way.

in this era.

Without instruments to measure spectra, Zhu Yunhuan had no choice but to use this clumsy method.

"Some of the stones... melted."

"Adding something more? What did they add? It appeared... that white precipitate Your Majesty mentioned!"

"..."

During Zhu Yunhuan's experiment, although everyone looked confused, it did not stop them from enjoying the new experience.

Zhu Yunhuan looked at them.

For a moment, my thoughts flew back to the 21st century. Although this group of people were all famous alchemists, alchemists, and Taoist figures of this era, they looked just like me when I was in junior high and high school and watched my chemistry teacher do experiments for the first time.

People are always curious about the unknown.

Zhu Yunhuan felt a mixture of emotions as he stood with his hands behind his back, waiting for the solution to react. When he saw the white precipitate in one of the cups disappear again over time, his thoughts were instantly pulled back...

His eyes lit up and his heartbeat quickened slightly.

"There is."

Zhu Yunxun smiled faintly, glanced at the name marked on the side of the cup, and asked, "Han Lingyue, who is it?"

He was tinkering with this thing here not just for experiments, he was looking for someone who had obtained this high-alumina bauxite mine, so that he could follow the clues to find the high-alumina bauxite mine and mine it to produce refractory bricks.

The past is all the past.

What he wants to do is to bring what is in his mind to his Ming Dynasty!

"Your Majesty, it is my disciple." A middle-aged Taoist priest immediately stood up and responded, with a hint of excitement in his voice, as if he had won the lottery.

"Do you remember where you got this stone?" Zhu Yunhuan asked.

Han Lingyue nodded immediately.

He replied, "I found it when I was traveling in Shanxi Province. I tried to refine it in the alchemy furnace, but it didn't have any special effect."

When it comes to this.

Han Lingyue felt secretly relieved.

He almost lost this small piece of thing at first, but at a moment's thought he left it in his luggage. He had forgotten about it since then. Today, in order to gather more materials for alchemy, he rummaged through boxes and drawers to find it.

I didn't expect that His Majesty wanted such a piece of scrap.

Hear this.

Zhu Yunhuan raised an eyebrow and thought to himself, "Mining... As expected, Shanxi is the place to go. The rich mineral resources here are truly incredible."

After a pause, he confirmed, "If I ask you to find the place where this stone was found, can you find it?"

This is the most important thing.

This thing is either produced in layers, sometimes up to several miles long along the direction; or it is produced in nests, with each nest being tens to dozens of meters long.

If we know where this guy got this high-alumina bauxite ore, we won’t have to worry about what happens next.

Han Lingyue frowned and thought for a moment.

He nodded and said, "I roughly remember which mountain it was, but as for the exact location... I just picked it up casually at the time, so I don't remember it very well."

Han Lingyue's voice was slightly guilty. Regardless of whether this thing was a piece of scrap or a broken stone, he knew that the one who wanted this thing was His Majesty, the Emperor, the one who had the power of life and death... He could not interfere and could not disobey.

Thinking of this, he looked at Zhu Yunhuan nervously.

Fortunately, His Majesty, who was standing in front, nodded thoughtfully and uttered a single word concisely: "Reward!"

Being able to pinpoint a certain mountain meant the scope was already very small, and with the resources and power he could mobilize as an emperor, it was very easy to find it.

It is equivalent to directly confirming the mining site.

This way.

Refractory bricks, high-temperature burning coking coal, iron ore... there are no longer any technical difficulties. The conditions for large-scale steel production have been initially met and we just need to let the people do it.

Hear Zhu Yunhuan's voice.

Han Lingyue then breathed a sigh of relief.

After hearing Zhu Yunhuan's reaction and actions, everyone finally understood what Zhu Yunhuan was going to do - probably to mine a large amount of this unremarkable ore!

What can you do with such a broken stone...

This was something that no one present could understand.

I was also confused.

Zhu Yunhuan saw their confusion, but these people were not qualified and had no need to know the true purpose of this thing.

He was silent for a moment.

He tapped the table in front of him with his knuckles and said, "I have finished what I wanted to do. Next, let's continue with yesterday's discussion of the nature of the world."

……

In the Alchemy Department.

It embodies the systems, theories, and achievements summarized by many chemists of later generations. Along with Zhu Yunhuan, it transcended time and space and began to take root in the Ming Dynasty in the 25th year of the Hongwu reign...

That afternoon.

Wang Yingxin, the seal holder of the Ministry of Industry, went to the palace to meet the emperor.

Then, he set out from Yingtian Prefecture with several technical backbones from the Industrial Department and headed towards the nearest coal mining and coal washing site...