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

Ma Sanbao left the Qianqing Palace to pass on the imperial edict. The palace fell into silence. Zhu Yunhuan looked at the memorial on the dragon desk and murmured thoughtfully, "High-alumina bauxite is crushed, screened, and calcined into clinker... supplemented with sodium lignin sulfonate adhesive from the Alchemy Department... pressed into bricks, mixed, and dried..."

This is naturally the method of making refractory bricks. Zhu Yunhuan went over it in his mind. Qin Kui, the Minister of Works, has always been a prudent person, so it would be enough to let him handle this matter.

As for some of the details.

For example, the particle size of the clinker and the proportion of the mixture can be left to Qin Kui to experiment with, and he can find the best ratio using the materials at hand.

Anyone who can sit in this position is not an ordinary person. As long as he can give a general direction, Zhu Yunhuan can be sure that his direction is correct. The rest of the problems are not his turn to worry about. This is the same as the group of people in the Alchemy Department who made soap based on a few words from him.

Just when Zhu Yunhuan was thinking deeply.

There was a knock at the vermilion lacquered door. "Your Majesty, the captain guarding the Alchemy Department has sent a messenger to report that they have some fruit to present. Would Your Majesty like to see it?"

Hearing the voice outside, Zhu Yunhuan withdrew his thoughts, raised his eyebrows and whispered softly: "Results?"

Then he smiled and said, "Send it in."

It's already afternoon now. He went to the Alchemy Department in the morning. Considering the time, even the intermediate preparation and final result of sodium wood sulfonate need a certain amount of time to dry, so it's almost done.

The results that the Alchemy Department hurriedly sent over at this time are probably 80% correct.

As Zhu Yunhuan finished speaking, the gate of the Qianqing Palace was gently pushed open, and a young eunuch with a white face and no beard walked towards him slowly with his head lowered, holding a vermilion lacquered wooden tray in his hand.

On top of the tray is a small porcelain cup with a lid.

When the wooden tray was placed in front of Zhu Yunhuan, he immediately opened the lid and took a look: fine brown powder with no special smell.

Different compounds have their own unique appearance and physical properties. The color and state of this thing are obviously correct. The people in the Alchemy Department are almost worshipping him as a god now. They will definitely strictly follow his steps in the formula and processing. In this way, it will be almost correct.

Zhu Yunhuan nodded with satisfaction and couldn't help but praise: "As expected, he is the alchemist I carefully selected."

It was worth the effort he put into setting up this chemistry training class. The source of modern chemical industry - sodium wood sulfonate was just the first step.

Of course, this thing may seem insignificant, but it has a great effect.

It can be used as an adhesive now, and later on it will be used as a water reducer for cement and concrete. Now that the finished product is out...

Zhu Yunhuan casually closed the lid and said, "Send the message back and ask them to continue refining the elixir for me." Of course, working overtime, the more the better!

"Yes, Your Majesty, I will go right away."

The young eunuch naturally had no idea what this was or why His Majesty was so happy to see some powder, but since he was beside the emperor, no one dared to explore or speculate at will. He immediately responded and slowly left the Qianqing Palace.

Zhu Yunhuan breathed a sigh of relief, his eyes narrowed slightly as he said, "Now everything is ready. We are just waiting for Qin Kui's help."

Not long after.

Ma Sanbao then brought Qin Kui along.

"Your Majesty, I am Qin Kui, your humble servant, here to pay my respects." Qin Kui bowed to Zhu Yunhuan sincerely and spoke slowly. His eyes, looking at Zhu Yunhuan, were filled with immense awe and gratitude.

If for no other reason, his Ministry of Industry was the last link in the production of cheap fabrics. When the people of the entire Ming Dynasty were celebrating together, the first thing they thought of was of course the Majesty in front of them, and the Ministry of Industry that was established by His Majesty himself, but why couldn't he, Qin Kui, have a name?