Otaku Engineer in Great Tang Dynasty

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Apart from the fact that Li Zexuan took it for granted about the ownership of iron ore in this era, he did not think clearly about the refining of pyrite when he was in the workshop.

The composition of pyrite is mainly ferrous sulfide. What he thought at the time was to extract sulfur and iron from it through a series of chemical processes, but after he got home, he calculated carefully and found that sulfur was extracted from pyrite. It's easier, but it's so hard to extract iron!

It's not that it can't be extracted, but it's very difficult to get it out under the current conditions. Even if it can be done, the cost is too high, and it's not worth it at all!

So in order to get a lot of iron, he also has to ask for some magnetite (the main ingredient is ferric tetroxide).

However, in addition to extracting sulfur, pyrite can also obtain an extremely important industrial raw material, which will be discussed later.

"What do you want iron ore for?"

Li Er didn't care much about sulfur ore. Besides, the court didn't have much control over sulfur ore, but iron ore was different. In the early Tang Dynasty, although the court abolished the special tax on salt and iron, basically all the ore has been explored. The iron mines of the Ming Dynasty were all owned by the imperial court, and in principle, private ownership of iron mines was not allowed.

"Your Majesty, the boy's workshop is short of iron! All the iron boys that can be bought near Chang'an City have been bought, but they are still not enough!"

Addressing and using words is a very deep knowledge. Li Zexuan calls himself a boy here, not a minister or a minister, to show that he is now talking to Li Er as a junior, not a minister, because what he is saying now After all, the topic is about businessmen, and it is very inappropriate to use the status of courtiers.

"Humph! It's useless! Do you really think your workshop is a treasure? Iron ore, I won't give it to you, because not only are you short of iron, but the court is even more short of iron now! Do you think your workshop is important? , or are my Shaofu Supervisor and Beidu Military Equipment Supervisor more important?"

(The Tang Dynasty implemented the system of three provinces and six ministries. The military weapons workshop was under the management of the Ministry of Industry and the Ministry of War, and they were called Shaofu Supervisor and Beidu Military Equipment Supervisor respectively.)

After listening to Li Er, he threw his sleeves, not feeling well.

In the early Tang Dynasty, the Tang Dynasty adopted the government military system, and there were 574-800 Zhechongfu throughout the country, 627 of which were famous and testable. This number varies, meaning that the minimum number of records is 574 and the maximum number is 800. The Zhechong House was divided into three classes, each with 1,200, 1,000, and 800 troops. Therefore, in the early Tang Dynasty, there were about 800,000 Fu soldiers in the whole country, of which about 260,000 people in the Guannei Road were the main force of the Fu soldiers - the Sixteen Guards of the Tang Dynasty.

The weapons and equipment for these 260,000 people were manufactured by the Shaofu Supervisor and Beidu Weapons. It's paid for by the government!

Such a huge consumption of iron tools made the court's demand for iron ore very strong.

"Uh, Your Majesty, you misunderstood! The boy didn't want the existing iron ore in the Tang Dynasty. The boy meant that the boy would find the iron ore by himself. After finding it, can the iron ore be handed over to the boy to send someone to mine?"

Li Zexuan explained carefully.

Li Er raised his eyebrows in surprise, and said a little surprised: "Oh? Your kid can still be good at feng shui and gold mining?"

In ancient times, the inverted bucket was called one of the eight gates outside the rivers and lakes. The craft of prospecting is called the ninth door: gold mining. Due to the long-term service of the government, the Kinmen people have very few descendants, but if they find a good gold mine, they will make gold every day.

Li Zexuan is also a Taoist, of course he has heard of gold mining, but how could he know such a thing? It seems that there is no such knowledge of Feng Shui in his memory of this life. His confidence in prospecting comes from the memory of his previous life! But definitely can't say that to Li Er.

"Uh, influenced by the tutor, the kid knows a thing or two about this, a thing or two!"

Li Zexuan's mind changed sharply, and then he said nonsense in a serious manner.

Li Er glanced at him, and after a while, he said: "In that case, I will allow you an iron ore! But at the same time, you have to help the court find a similar iron ore, and then your iron ore will not need to be reported to the court. Pay taxes and mine at will, how about it?”

Although the iron ore at this time was owned by the state, a large part of it was mined by the private sector. The "Old Tang Book: Zhiguan Zhi" records: "Everywhere in the world comes out of the copper and iron prefectures and listens to private mining. Officials collect their taxes." As the emperor, Li Er still has a lot of "manipulation space" in this regard, and he can ensure that other officials will not pick the thorns.

Old fox, Lao Li's advantage is really not something that ordinary people can take. Li Zexuan slandered in his heart. After thinking for a while, he nodded and cupped his hands: "Thank you, Your Majesty! That sulfur mine..."

Li Er smiled smugly, and then said: "You can do whatever you want with the sulfur mine! As long as you can find it, it's yours, and I won't bother!"

Although he didn't know what Li Zexuan wanted the sulfur mine to do, he didn't bother to ask. This thing was not an important national strategic material, so it was considered a benefit for Li Zexuan to join the Shibo Company.

"Thank you, Your Majesty, I will do my best to help the King of Hejian manage the Shibo Division, and increase the revenue for the Tang government's treasury!"

Such a result, although not particularly ideal, but Li Zexuan can also accept it, as it is a contribution to the country, the more iron the court has, the better the military weapons will be, and the country will be stronger!

As for Shibo's right-lifting, he doesn't need to go to Guangzhou to "take a shift" anyway, he just needs to use his brain. It doesn't have much impact on his current life.

"Humph! Go away!"

see Li Zexuan

Li Er snorted angrily with the appearance of "slaying the eagle immediately when he saw the rabbit".

Grass, Lao Li is so disrespectful to people, he kills the donkey! Li Zexuan was a little unhappy in his heart, but it was true that he took advantage of this matter, so he didn't get angry with Old Li, bowed his hands, and withdrew.

Hmph, this poor palace man is not willing to stay!

After leaving the Taiji Palace, Li Zexuan secretly gave Li Er a middle finger, then walked towards the palace gate, preparing to go home.

"Brother Xiaoxuan!"

At this moment, a pleasant female voice came from his side, Li Zexuan heard the sound and looked over, and saw Changle walking in lotus steps, coming in a dignified and elegant manner.

"your Highness!"

The reason why Changle looks so dignified is because he is in the palace now, and he has to obey the rules. Similarly, Li Zexuan has to obey the rules, so he honestly bowed his hands.

"Brother Xiaoxuan, please be polite, Changle is here to thank brother Xiaoxuan! Thank you for speaking for Changle in the courtroom just now!

Chang Le screened back, came over quickly, and said in a low voice, the little girl's eyes were like water, which made her look very gentle.

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