"Young master, why are you here~?"

In the Strange Pavilion Workshop, Fu Bo saw Li Zexuan and hurriedly stepped forward and said.

Li Zexuan stopped, but his eyes scanned the courtyard, and while looking, he replied:

"Fu Bo, I heard that the vanadium mine in Shu has been brought back, so I came over to take a look! Where are they? How many are there? ”

Fu Bo said with a smile: "Young master, the ore has been transported to the steel mill, and the old man knows that the young master values this kind of ore, but he doesn't dare to pile it outside!" ”

Li Zexuan smiled and was about to speak, when another person came in the workshop.

"The vanadium mine is coming, where is it .... Chief, you're here too? ”

The person who came was Wang Ji.

Vanadium is a catalyst necessary for large-scale production of concentrated sulfuric acid, not only Li Zexuan cares, but Wang Ji has also been waiting for the vanadium mine in Shuzhong to be transported back quickly.

Li Zexuan nodded with a smile and said, "Hmm! Mr. Wang, you're very fast, aren't you? ”

Wang Jile said: "Hey! As the head of the chemistry department, the old man is of course responsible for helping the academy develop new chemical raw materials, and the old man has been looking forward to this vanadium ore for a long time! ”

"Young master, the guards of this mine transportation are all Qiang people from Shu, and they also brought two letters, saying that they were handed over to you by their Mr. Xiao Ke!"

At this time, Fu Bo took out two painted letters from his arms, handed them to Li Zexuan, and said.

"Mr. Ke?"

Hearing this title, Li Zexuan subconsciously felt a little dazed, and was stunned for a moment before he came back to his senses and couldn't help but say, "It should be Ke Shiqing, right?" Oops, it seems that this young man is mixing well in the Qiang tribe~! They are all honored as sir! ”

Wang Ji stroked his beard, smiled proudly: "Our students of Yanhuang Academy, no matter where they go, they will become a star-like existence, Ke Shiqing, this old man has some impressions, he is indeed a good child who is diligent and studious~!" ”

This old guy looks like this now, just like some old gentlemen in modern times, when he learned that his students were promising, he was obviously very complacent, but he was still quite reserved and restrained on his mouth and face, and Li Zexuan couldn't help but want to laugh.

"Huh! Let's go! Mr. Wang, let's take a look at the fineness of this batch of vanadium ore? ”

Li Zexuan saw that Fu Bo was secretly pouting at the "stinky fart" Wang Ji, and hurriedly pulled Wang Ji towards the steel mill.

"Huh~! With so much ore, you can refine a lot of vanadium, right? ”

Walking into the courtyard of the steel mill, I saw a large pile of large and small light gray ores under a cloth shed.

Li Zexuan walked closer, randomly picked out a piece from the ore pile, brought it closer, looked at it carefully for a moment, and said with a smile:

"Hmmm! The condition is very good! Mr. Wang, this pile of vanadium titanomagnetite can smelt at least 300 catties of vanadium, so much vanadium is completely enough to cope with the consumption of sulfuric acid in the workshop! Recently, you have been working harder, let the craftsmen of the workshop renovate the boiler, build a small-scale vanadium smelting workshop, and then build a sulfuric acid workshop, and make a batch of concentrated sulfuric acid as soon as possible, I have a lot of use! ”

Wang Ji responded excitedly: "Yes! Mountain Chief! ”

Even if Li Zexuan doesn't say it, he will take the initiative to ask for it, after all, it is not easy to get so much vanadium titanium magnetite, if he can't refine it himself, he will be furious in his heart!

"Oh! That's right! Shanchang, the textbook "Chemistry" says that this sulfuric acid is strongly corrosive and can react with iron to form copper sulfate and hydrogen, so what will we use to store concentrated sulfuric acid in the future? ”

Wang Ji paused for a moment and suddenly said.

Li Zexuan thought for a while and replied with a smile: "Mr. Wang, dilute sulfuric acid can dissolve iron and release hydrogen, and its reaction principle is that the free-moving hydrogen ions in dilute sulfuric acid react with iron. However, concentrated sulfuric acid does not or rarely reacts with iron.

Because the purity of concentrated sulfuric acid is very high, sulfuric acid exists in the form of covalent compounds, not ionic compounds, when the purity is high, it ionizes very few hydrogen ions, almost nothing, so it will not corrode iron, but will have a passivation reaction with iron, so that the surface of iron has a dense oxide film, which is very dense, preventing concentrated sulfuric acid from entering the iron to continue the reaction.

However, although concentrated sulfuric acid can be stored with carbon steel, the condition is that it is best to be at room temperature and pressure, so that the corrosion rate of carbon steel is the lowest, because the hot concentrated sulfuric acid will also react with iron, in order to ensure the safety of concentrated sulfuric acid storage, it is necessary to choose a horizontal storage tank, and build a leak-proof wall around the storage tank.

The storage room of sulfuric acid must strictly prohibit fireworks, because there will be a small amount of dilute acid on the surface of the concentrated sulfuric acid liquid and iron to produce hydrogen, and hydrogen will explode when it encounters fire. I don't want any safety incidents in our workshop! ”

In the end, Li Zexuan's face must be solemn.

Even in modern times, chemical plants are the most prone to safety accidents, either from the leakage of toxic chemical products to the explosion of flammable substances, either of which can cause significant harm to the people around them!

It is precisely because of this that Li Zexuan told Wang Ji so solemnly!

Wang Ji also understood the stakes, and he solemnly arched his hand: "Rest assured, the old man must put safety first, regularly train craftsmen in safety production, and link their monthly wages with the implementation of safety production, so that everyone will strictly abide by the regulations of safety production!" ”

Li Zexuan's eyes lit up, and he nodded: "Hmm!" Mr. Wang, your idea is good, go back and discuss with Fubo how to implement this wage system as soon as possible, the craftsmen who comply with the regulations will pay more, and the money will be deducted if they violate the safety production regulations, so that all the craftsmen in the workshop will pay attention to it! ”

"Mountain chief, no problem! The old man knows what is important! ”

Wang Ji nodded and responded.

……………………………

After instructing Wang Ji to pay attention to safe production, Li Zexuan asked Wang Ji to produce a batch of concentrated sulfuric acid as soon as possible, because he would make a battery next!

In addition, vanadium, a catalyst used in the production of sulfuric acid, can also be used as a catalyst for cracking petroleum in the future.

Out of the workshop, back to the courtyard, Li Zexuan took out the letter handed to him by Fu Bo, on the envelope, one of them was written "The Mountain Chief Personally Enlightened", and the other was "Mother Personally Enlightened", Li Zexuan opened the letter written by Ke Shiqing to himself, and began to read it carefully.

"Since leaving Yunshan, it has been nearly a month in the blink of an eye, and Shiqing misses the people and things of the academy very much, but Shiqing is even more grateful to the mountain chief for the opportunity to benefit the people of his hometown this time, and now, the road from Guanzhong to Shudi is being built;

The imperial court also sent a large number of officials, with a large amount of money, to support the construction of people's livelihood in Shudi;

A group of businessmen from Chang'an City also opened shops in Chengdu Mansion, and they brought many new things that the local people had never seen.

The mining of vanadium titanomagnetite has made it possible for everyone in the local Qiang people to work in the mine to earn money, but in half a month, the wages received by each miner are almost equal to the previous three or four months' income!

In accordance with your instructions, Shiqing adheres to the principle of safety first, and would rather the vanadium ore be mined slower to ensure the safety of the miners' lives, so there has been no casualty in the mining of the veins so far!

Oh, by the way, "Datang Daily" has also opened an office in Shuzhong, and now the people in Shuzhong have become accustomed to reading newspapers every morning! Yesterday, the students saw in the newspaper that Shanchang had invented a new type of waterwheel and made the drawings public, and Shiqing was proud to be a student of Shanchang!

In addition, His Royal Highness the King of Shu made people set up a branch of Yanhuang Qianzhuang in Shuzhong, and with the facilitation of Gao Changshi, the people and merchants in Shu have slowly begun to accept the new currency of Tang Yuan, and there are fewer and fewer people who use copper coins!

With the help of the Sanbao brothers, the students brought Quyuan plow, "Tang Dictionary", bicycles, coal stoves, honeycomb coal, and other things that benefit the people to Shuzhong, and with the support of Gao Changshi, they opened up people's wisdom, revitalized agriculture, and promoted commerce!

Today's Shuzhong is undergoing earth-shaking changes, and students are so fortunate to be able to witness the increasing prosperity of their hometown and the increasingly prosperous life of their fellow villagers! The students once remembered that the mountain chief used to say: 'The paper is shallow, and you must bow to it', and the students realized the true meaning of this sentence in the process of leading the people in their hometown to get rich!

Some things look simple, but really to do, often encounter a lot of difficulties, fortunately those difficult students have heard about it, and now the students have become Mr. Ke in the minds of the people of Netzhou!

The mountain chief can rest assured that the student union will not be arrogant in victory and discouraged in defeat, and the good students will lead the people of Shuzhong to get rich, and will definitely not embarrass the mountain chief or Yanhuang Academy!

Student Ke Shiqing bowed to him and wished the mountain chief all the best and his body was healthy! ”

"Xianggong, what are you looking at? So happy? ”

Li Zexuan had just finished reading the letter and was about to sigh a few words, when Han Yuxi happened to come over and asked with a soft smile.

"Huh! It's nothing! It's a letter written by a student of the academy to her husband! ”

Li Zexuan smiled, took his wife into his side, and said with a smile.

"A letter from a student? Aren't all the students of Xianggong in the academy? Why do I need to write to you? ”

Han Yuxi frowned at the good-looking willow eyebrows and wondered.

Li Zexuan smiled and asked, "Do you remember the student named Ke Shiqing who took the initiative to invite Ying and wanted to go to Shuzhong before?" ”

Han Yuxi thought about it for a while, and said, "Oh! The concubine remembered that his mother had come to Yunshan to send a letter to you! ”

"Hmmm! That's him! This kid is doing a good job in Shuzhong now, and he is a teacher for his husband, and he is very pleased to see it~! ”

Li Zexuan handed the letter to Han Yuxi, and then said with a smile.

"I see! Why is my husband smiling so happily! ”

Han Yuxi took the letter paper, swept it aside, and said happily: "Xianggong is benefiting the people of Lantian County, but Ke Shiqing is benefiting the people of his hometown, this student is very similar to Xianggong you!" Yanhuang Academy produces talents, if the students of the academy can be like Ke Shiqing, with what they have learned, for the benefit of one party, at that time, Xianggong can really be all over the world and famous for eternity~! ”

When Li Zexuan heard this, his heart was inevitably agitated, he patted his wife's shoulder, and sighed: "Therefore, Yanhuang Academy is the Tang Dynasty and our family's greatest wealth and reliance!" Instead of delving into the art of intrigue and mingling in the court, it is better to open a school and build a mansion, and teach what you have learned to thousands of disciples, he treats me all over the world, even if you are the prime minister and the emperor, you should respect me for three points! ”

These words are the true words of his heart!

At the beginning, the establishment of Yanhuang Academy and the dissemination of engineering were of course to benefit the people of the world and seek a little welfare for the toiling masses of this era, but at the same time, Li Zexuan founded Yanhuang Academy to seek a reliance for himself, a reliance that can settle down in this feudal imperial era, settle down and make others dare not easily move their own reliance!

Only when the students of Yanhuang Academy are more and more promising, and when there are more and more students of the academy, will his reliance become more and more reliable!

The reason why Sage Confucius is glorious and famous through the ages, in addition to his own greatness, is that he has 3,000 disciples who spread his doctrine and send him to the altar in one fell swoop!

Li Zexuan knew that he couldn't be a saint like Confucius, he just wanted to find a firm support in this feudal era, that's all!

"Xianggong, for this family, you have worked hard~!"

Han Yuxi stroked Li Zexuan's forehead with some distress, then snuggled up to the latter's shoulder and said softly.

"Huh! Don't be bitter for your husband! In this life, there is a lady who knows me and understands me, and there is a father and mother who loves me so much and protects me, and she is not bitter for her husband! ”

Li Zexuan stroked Han Yuxi's long hair, comforted him softly, and after a while, he said, "Oh! Shiqing also wrote a letter to his mother, and asked her husband to send the letter to Chang'an, lady, you can also pack up, and we will go back to Lantian County in a while! ”

"Uh-huh~! Oh, by the way, Xianggong, we don't seem to be able to go back today! ”

Han Yuxi first nodded, then shook his head, and said.

Li Zexuan suddenly wondered: "Why is this?" Does the lady still have something to do in Yunshan? ”

Han Yuxi saw that Li Zexuan really couldn't remember what was going on, so he had to say helplessly: "Did Xianggong forget?" Tomorrow is Pang Feiji's wedding, Pang Feiji followed Xianggong all the way, several times he was born and died, even if there is no credit, there is hard work, he will get married tomorrow, Xianggong should go to a trip with reason, right? ”

Li Zexuan opened his mouth, and suddenly realized that Liu Feng had mentioned this matter to him before, but he had too many things on weekdays, and he forgot about it accidentally, and at this time he smiled a little embarrassedly: "Yes, yes, yes!" Ay! Look at the memory of the husband, I almost forgot about it! Thanks to the lady for your reminder! Then we won't go back to the county tonight, let's go to drink wine together tomorrow~! ”

"Uh-huh!"

Han Yuxi smiled sweetly and nodded in response.

…………………………