Sulfur is burned in the air to produce sulfur dioxide, and Wang Ji wondered why sulfur trioxide could not be produced through the further reaction of sulfur dioxide and oxygen, so as to produce sulfuric acid.

Not only did he think about it, but he also did a lot of experiments recently, and the results all ended in failure!

When Li Zexuan heard this, he couldn't help but secretly praise Wang Ji, this old man is still very talented in "Chemistry", and he will touch the bypass!

"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 is mentioned in the second volume of the Chemistry textbook! ”

Sulfur dioxide is used to prepare sulfuric acid, is the most commonly used method in modern industry, the raw material is pyrite (the main component is ferrous sulfide), calcined at high temperature, sulfur dioxide is generated, sulfur dioxide is generated under the action of catalyst and high temperature, sulfur trioxide is generated, absorbed with 98.3% sulfuric acid, pyrosulfuric acid is obtained, 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 does not know what catalysts can promote the further oxidation of sulfur dioxide.

"Platinum or vanadium pentoxide!"

Li Zexuan thought for a while and said lightly.

"Platinum? Vanadium pentoxide? Chief, where are these two things sold? ”

Wang Ji asked with a frown.

Li Zexuan smiled helplessly, spread his hands and said, "Heh! Neither of these things is sold anywhere! Especially the first one, as far as I know, the whole world is very rare! As for vanadium pentoxide, it can be extracted from ammonium metavanadate in vanadium ore, but at present, no one in Datang knows the purpose of vanadium ore, let alone where vanadium ore is! ”

Wang Ji suddenly said anxiously: "Mountain Chief, it doesn't matter if no one knows!" We can send someone to find it! With this catalyst, we can produce sulfuric acid in large quantities! The current method of making dilute sulfuric acid from green alum is not suitable for mass production at all! ”

He had heard Li Zexuan say several times that sulfuric acid was very important, and after getting along for such a long time, Wang Ji had deeply understood a truth: that is, if Li Zexuan said that it was important, it must be very important! Li Zexuan said that platinum and vanadium pentoxide can catalyze the further reaction of sulfur trioxide with oxygen, so it must be catalytic!

Different from the "unconscious calendar" of ordinary students, Wang Ji, who has read through the textbook of "Chemistry" and done a lot of experiments by 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, Wang Ji saw this, and quickly closed his mouth, not daring to disturb again!

In fact, Li Zexuan is recalling the mineral distribution map of his previous life at this time, which area has the most vanadium mines!

If it weren't for the fact that he now has super perverted mental powers, this thing would not be able to be recalled at all. After half an hour, Li Zexuan finally opened his eyes, and he spoke: "What Mr. Wang just said is reasonable, vanadium ore is very important to the future technological progress of the workshop, and someone must be sent to find it!" I deduced it just now, and the result is that there should be a lot of vanadium ore in the area of Jiannan Road! ”

The so-called Jiannan Road mainly refers to the area of modern Sichuan. After Qin destroyed Ba and Shu, the county system was implemented in Sichuan, and Ba County and Shu County were set up in the original Bashu area. Emperor Wu of the Han Dynasty was sealed for five years, and the Sichuan region was set up as the Yizhou Department. In the first year of Zhenguan, Li Er abolished the state and county system and changed Yizhou to Jiannan Province.

In modern China, vanadium ore is distributed in 19 provinces, municipalities and autonomous regions, among which Sichuan has the most, and the vanadium ore reserves are as high as nearly 13 million tons!

Prospecting is a time-consuming and laborious job, but not only Wang Ji wants people to find, Li Zexuan also wants to send someone to find vanadium ore as soon as possible, as a modern person, no one understands the importance of sulfuric acid more than him, pigments, detergents, cosmetics These derivatives of sulfuric acid are not mentioned for the time being, Li Zexuan feels that if Datang can prepare a large amount of sulfuric acid, it should be preferentially used in fertilizer, metallurgy and petroleum industry, all three of which are inseparable from sulfuric acid!

When the conditions are ripe, you can also use this to launch a battery, with this thing, it is much easier to build an electric car!

Also, if nitric acid can be prepared later, it can be made into high explosives (TNT).

(TNT is trinitrotoluene, which is produced by benzene and concentrated nitric acid catalyzed by concentrated sulfuric acid)

To put it further, the production of nuclear fuel for atomic reactors, the preparation of alloying materials such as titanium and aluminum for reactors, and titanium alloys for the manufacture of rockets, supersonic jet planes and artificial satellites are all directly or indirectly related to sulfuric acid.

This thing is really the cornerstone of the defense industry!

Wang Ji heard Li Zexuan say that there was a vanadium mine in Jiannan Road, and he couldn't help but feel happy on his face, and exclaimed: "It won't be a real disciple of Lingxu, the feng shui of the mountain chief is old and admired!" ”

Lao Wang thought that this result was really calculated by Li Zexuan, and he had also heard about Fubin's previous trip to Hedong Road to look for minerals, so he admired Li Zexuan even more!

"Haha! All right! Mr. Wang, you are busy first! Let's talk about vanadium next year! You also need to take care of your rest lately, but don't get tired! ”

Li Zexuan was a little weak by Wang Ji's fanatical admiration eyes, and hurriedly pulled out his feet and slipped away.

.………………………………

Although sulfuric acid is very important, but the New Year is equally important, the Chinese have not weakened for 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's efficiency is very fast, and in the afternoon he put out a "splendid article" about free clinics, Li Zexuan not only sighed secretly after reading it, "How can the golden scales be a thing in the pool", his small temple, it is estimated that it will not be able to accommodate Ma Zhou's big Buddha in a few years!

There is some history, he can change, some history, he can't change, a talented person like Ma Zhou will definitely become a country in the end!

On the second day, the headline of "Datang Daily" published a notice that Sun Simiao, together with two former doctors from the Tai Medical Administration, planned to hold free clinics in the surrounding counties of Chang'an City with the strong support of the Nuan Tang Foundation.

When the news came out, all the people rejoiced!

Whether it is modern or ancient, there are many people who can't afford to get sick, or even dare not get sick, because sometimes a seemingly inconspicuous disease is likely to bring down a family!

Now that Sun Simiao, a recognized miracle doctor in the Tang Dynasty, plans to hold a free clinic, how can the people be unhappy?

People who knew the news ran around to tell each other, and all of a sudden, the people in Chang'an City and the surrounding areas of Chang'an City were just like the New Year, and their faces were full of joy!

………………………………

First update!

(End of chapter)