Sulfur burns in the air to produce sulfur dioxide. What Wang Ji was wondering was why sulfuric acid could not be produced by further reacting sulfur dioxide with oxygen to produce sulfur trioxide.
Not only had he thought about it, but he had also done a lot of experiments recently, all of which ended in failure!
When Li Zexuan heard this, he couldn't help but secretly praise that the old man Wang Ji was very talented in "Chemistry" and he could draw analogies!
"Mr. Wang, it's not that sulfur dioxide can't continue to react, but if they want to react further, they must have a catalyst! This will be mentioned in the second volume of the "Chemistry" textbook!"
The use of sulfur dioxide to prepare sulfuric acid is the most commonly used method in modern industry. The raw material is pyrite (the main component is ferrous sulfide), which is calcined at high temperature to generate sulfur dioxide. The sulfur dioxide generates trioxide under the action of a catalyst and high temperature. Sulfur is absorbed with 98.3% sulfuric acid to obtain pyrosulfuric acid, and finally water is added to obtain sulfuric acid!
"Catalyst? What catalyst can catalyze the further reaction between the two?"
In the first volume of "Chemistry", there is an introduction to catalysts, but Wang Ji did not know of any catalysts that could promote the further oxidation of sulfur dioxide.
"Platinum or vanadium pentoxide!"
Li Zexuan thought for a while and said lightly.
"Platinum? Vanadium pentoxide? Chief Shan, where can I buy these two things?"
Wang Ji asked with a frown.
Li Zexuan smiled helplessly, spread his hands and said: "Ha! These two things are not sold anywhere! Especially the first one, as far as I know, it is very rare in the whole world! As for vanadium pentoxide, it can be obtained from vanadium mines Ammonium metavanadate is extracted, but as of now, no one in Datang knows the use of vanadium ore, let alone where it is!"
Wang Ji immediately said anxiously: "Chief, it doesn't matter if no one knows! We can send people to find it! With this catalyst, we can produce sulfuric acid in large quantities! The current method of using green vitriol to produce dilute sulfuric acid is basically Not suitable for mass production!”
He had heard Li Zexuan say that sulfuric acid was very important several times before. After such a long time together, Wang Ji had deeply understood a truth: that is, if Li Zexuan said it was important, it must be very important! Li Zexuan said that platinum and vanadium pentoxide can catalyze the further reaction of sulfur trioxide and oxygen, so they must be able to catalyze it!
Unlike ordinary students who are "unaware of the bright calendar", Wang Ji, who has read through the "Chemistry" textbook and done many experiments himself, has long been conquered by Li Zexuan's profound knowledge in chemistry!
At this time, Li Zexuan closed his eyes and fell into deep thought. When Wang Ji saw this, he quickly closed his mouth and did not dare to disturb him again!
In fact, Li Zexuan was recalling the mineral distribution map in his previous life, which area had the most vanadium mines!
If it weren't for his super abnormal mental power now, this thing would be impossible to recall. After half a quarter of an hour, Li Zexuan finally opened his eyes and said, "What Mr. Wang just said makes sense. The vanadium mine is crucial to the future technological progress of the workshop. Someone must be sent to find it! I just deduced After some research, the result is that there should be a lot of vanadium ores in the Jiannan Road area!"
The so-called Jiannan Road mainly refers to the modern Sichuan area. After the Qin Dynasty destroyed Ba and Shu, it implemented the system of prefectures and counties in Sichuan and established Bajun and Shujun in the original Bashu area. In the fifth year of Yuanfeng reign of Emperor Wu of the Han Dynasty, the Sichuan area was set up as the Yizhou Department. In the first year of Zhenguan, Li Er abolished the state and county systems and changed Yizhou into Jiannan Road.
In modern China, vanadium ores are distributed in 19 provinces, municipalities, and autonomous regions, with Sichuan having the largest vanadium ore reserves of nearly 13 million tons!
Prospecting is a time-consuming and laborious job, but not only Wang Ji wants people to search for it, but Li Zexuan also wants to send people to find vanadium ore as soon as possible. As a modern person, no one understands the importance of sulfuric acid better than him. Pigments, detergents Putting aside the daily necessities derived from sulfuric acid such as cosmetics and sulfuric acid, Li Zexuan feels that if Datang can prepare sulfuric acid in large quantities, it should be used first in the fertilizer, metallurgy and petroleum industries. All three of these are inseparable from sulfuric acid!
When conditions are ripe, you can also use this to launch a battery. With this thing, it will be much easier to build an electric car!
Going a step further, the production of nuclear fuel for atomic reactors, the preparation of titanium, aluminum and other alloy materials for reactors, as well as titanium alloys used to make materials for rockets, supersonic jets and satellites, are all directly or indirectly related to sulfuric acid. indirect relationship.
This thing is really the cornerstone of the defense industry!
When Wang Ji heard that Li Zexuan said that there were vanadium mines in Jiannan Road, he couldn't help but feel happy and exclaimed: "It can't be that he is a disciple of Master Lingxu. I admire the master's Feng Shui skills!"
Lao Wang thought that this result was really calculated by Li Zexuan. In addition, he had heard about Fu Bin's previous trip to Hedong Road to prospect for minerals, so he admired Li Zexuan even more!
"Haha! Okay! Mr. Wang, you are busy first! Let's talk about the vanadium mine after the New Year! You have to pay attention to rest recently, so as not to exhaust your body!"
Li Zexuan felt a little guilty when he saw Wang Ji's fanatical admiration in his eyes, and quickly ran away.
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Although sulfuric acid is very important, the Chinese New Year is equally important. The Chinese people's attachment to the Chinese New Year has not weakened after thousands of years. Li Zexuan does not want to send people to Sichuan to look for minerals at this critical juncture of the new year!
Ma Zhou was very efficient in his work. In the afternoon, he wrote a "splendid article" about free clinics. After reading it, Li Zexuan not only sighed inwardly, "How can golden scales be something in a pond?", his small temple was probably worth a lot of money. In a few years, there will be no room for the giant Buddha of Ma Zhou!
Some history, he can change, but some history, he cannot change. A talented person like Ma Zhou will eventually become the prime minister of a country!
The next day, the headline of "Datang Daily" published a notice that with the strong support of the Nuantang Foundation, Sun Simiao, together with two former doctors from the Imperial Medical Office, planned to hold free clinics in the counties surrounding Chang'an City.
When the news came out, all the people rejoiced!
Whether in modern times or in ancient times, there are many people who cannot afford to get sick, or even dare not get sick, because sometimes a seemingly insignificant disease may bring down a family!
Now Sun Simiao, a recognized miracle doctor in the Tang Dynasty, plans to hold a free clinic. I wonder how many families with patients will be reborn because of this free clinic! How could the people be unhappy?
People who knew the news rushed around to tell the news. Suddenly, the people in Chang'an City and the surrounding areas were as if it was the New Year, and everyone's faces were beaming with joy!
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