Confused.

sluggish.

Incredible.

Lin Wan was extremely shocked, with all kinds of emotions inside her. She couldn't believe what she heard.

She is not as ignorant as other students about the unfamiliar and unpopular basic inorganic chemical industry. On the contrary, Lin Wan knows a lot of chemical knowledge and is very aware of the importance of sulfuric acid, an industrial raw material!

As the most important chemical raw material in modern industry, sulfuric acid is as important to modern industry as people are inseparable from three meals a day.

If you don't eat, you will be hungry.

Without sulfuric acid, modern industry cannot function properly.

Sulfuric acid is needed to produce steel, and sulfuric acid is needed to produce fertilizers, drugs, and pigments. Sulfuric acid is the core key in petroleum smelting and explosives production.

If steel output is a measure of the strength of a country's heavy industry, then sulfuric acid output is a measure of the strength of a country's chemical industry.

Steel and sulfuric acid are equally important.

And what is the concept of 22 tons of sulfuric acid per day mentioned by Yu Hua?

To give a real-life example, as far as she knows, Yongli Chemical Industry Company, a giant company in the chemical industry in Tianjin next door, is planning to build an ammonium sulfate plant in Nanjing with an annual output of 50,000 tons, and it officially started production in January this year.

Its annual output of sulfuric acid is 40,000 tons, which translates to a daily output of about 109 tons. Its technology and equipment are all from the United States.

With an annual output of 40,000 tons of sulfuric acid, Wynn Nanjing Ammonium Sulfate Plant has become the largest and most productive sulfuric acid plant in the country. All major arsenals across the country purchase raw materials from Wynn.

Now, the seven-tower device mentioned by Yu Hua has a daily output of up to 22 tons and an annual output of 8,000 tons, which is comparable to one-fifth of the production capacity of the Wynn Ammonium Sulfate Plant.

One piece of equipment is equal to one-fifth of someone else’s factory?

God, do you want to be so exaggerated?

If a seven-tower device like Yuhua's is used, and the investment is of the same scale as the Yongli ammonium sulfate plant, wouldn't the sulfuric acid output be able to exceed 100,000.

And this was the reason why Lin Wan was extremely shocked.

If this seven-tower sulfuric acid production technology can be used by organizations...

In an instant, his breathing became heavier all of a sudden, and he felt a little dizzy.

calm!

keep Calm!

Lin Wan took deep breaths continuously, trying to calm down her emotions. She quickly calmed down and did not get carried away by the huge temptation.

"I'm sorry, I lost my temper, but I have a question. Can this seven-tower device really achieve a daily output of 22 tons?" Lin Wan stopped, looked at Yu Hua, thought about it, and said with a trepidation on her face.

He asked with a solemn tone, "The American technical equipment introduced by Wynn Chemical Company has a daily output of about 109 tons."

Seriousness is the most basic attitude.

Lin Wan was not dazzled by the ultra-high output of the seven-tower device and lost her mind, even though she knew what it would mean if the organization possessed this technology.

The seven-tower device with a daily output of up to 22 tons is very tempting, but its output is so high that it is incredible.

Lin Wan did not question Yu Hua's purpose, but whether it could really be realized.

In fact, if Yu Hua hadn't said it himself, Lin Wan wouldn't have believed it if it had been anyone else.

In the field of science and technology, China is extremely backward and has no basic environment. It is not easy for China to catch up with the technological level of the West in a certain field.

As for surpassing the West, that is too ambitious.

"Yes, if you believe me, in addition, from a strict naming perspective, it should be called Yu's Seven Towers. After all, I was not the first to create the tower method. Calling it a seven-tower device is a bit hasty."

Yu Hua smiled, nodded confidently, and answered: "The technical equipment introduced by Wynn is a six-tower device, which has been eliminated in the United States. The current sulfuric acid production process has been upgraded to the contact method principle."

There are currently three mainstream methods for manufacturing sulfuric acid, the lead chamber method, the tower method and the contact method. The main raw materials are sulfur and pyrite, and the three methods are different.

The lead chamber method began in the seventeenth century and is the oldest method of preparing sulfuric acid. The principle is to use high-grade nitrogen oxides to oxidize sulfur dioxide and generate gaseous sulfuric acid. It is produced by using multiple lead chambers in series. The disadvantage is that it requires a large amount of lead material.

Large scale and high cost.

The tower method was improved from the lead chamber method. In 1911, Austrian Opple created the world's first tower method device, which consisted of a packed tower, a denitrification tower, an acid-forming tower, an oxidation tower and a nitrification tower. Each tower was about

The volume of the seven towers is 100 cubic meters, and the volume of the seven towers is 700 cubic meters. It uses liquid phase to promote the nitrification reaction of sulfur dioxide to produce sulfuric acid.

The entire reaction process only needs to be carried out in each tower. It is similar to the lead chamber method, but the output is more than double that of the lead chamber method. The cost is low. Once it appeared, it immediately replaced the lead chamber method and became the mainstream production process in the chemical industry. It is divided into five tower devices.

, six-tower devices and seven-tower devices, currently both the United States and Europe use seven-tower devices.

As for the contact method, this is the main method for producing sulfuric acid in the modern chemical industry and is extremely suitable for large-scale production.

Yu Hua was not prepared to study the sulfuric acid production technology based on the principle of contact method. First, the investment was too high, and second, the technology was too advanced. Once the technology was leaked to the Japanese, it would have disastrous consequences.

Yu's Seven Pagodas.

Hearing these four words given by Yu Hua, Lin Wan nodded, her mind flooded with thoughts, and she fell into silence.

silence.

Deathly silence.

Now that everything that needs to be said has been said, there is only one choice left for Lin Wan -

promise,

Still refuse.

Yu Hua smiled, remained quiet, and did not rush.

The whole person turned a blind eye to the various looks from around him, and quietly looked at the best angel investor in front of him whose face kept changing, waiting for the final answer.

Today, Lin Wan is dressed in plain colors and the iconic girl's outfit of the Republic of China. Her eyes are full of aura, as quiet and elegant as a lotus flower.

Very beautiful.

"Is eight thousand enough?" After three seconds, Lin Wan, who was lost in thought, seemed to have made a decision. A pair of eyes as clear and pure as gemstones showed a gleam of light, staring directly into Yu Hua's eyes, and she didn't care at all.

The other students in the school looked at him and said seriously.

Their eyes met, and their eyes were full of trust.

Lin Wan didn't know why Yu Hua made the leap from mathematics to chemical engineering. The span between the two was simply wider than the Yellow River.

One is biased toward theoretical foundations, and the other is toward practical applications.

In actual technology development, there will be countless problems encountered, but Lin Wan chooses to believe in Yu Hua's talent and talent, as well as his academic level.

Perhaps, Yu Hua can really develop excellent technology that even Westerners cannot match.

If this seven-tower device is as Yu Hua said, its output can exceed twice the performance of Western sulfuric acid production equipment, let alone eight thousand oceans, even if it is a rip-off, she will support Yu Hua in building it.

Money is very important, but it is not worth mentioning in the face of advanced technology.

Which one is light and which one is heavy can be distinguished by just thinking about it with your toes.

As for the reward, Lin Wan believes that Yu Hua will not let her down.

"Enough, but the more oceans there are, the faster the research and development speed. If you lend me 8,000 oceans, it will be done in a month and a half. If you lend me 15,000 oceans, it will take about twenty days." Hearing this was expected.

In reply, Yu Hua smiled, winked at Lin Wan, and joked.

Yu Hua was very happy that Lin Wan did not disappoint him.

"..."

Good guy, when Lin Wan heard about fifteen thousand yuan for Ocean Trees, she rolled her eyes. Thinking that she would be able to produce results in about twenty days, she took a deep breath and said, "Then I'll lend you fifteen thousand yuan. The sooner the better, I

Try to raise funds as much as possible, how long will it take for you to do so?"

"The day after tomorrow, we will discuss technology research and development and other matters later. I will give you a technical feasibility report by then, and maybe I will bring you in as a helper." Yu Hua responded.

Lin Wan nodded and then asked: "Okay, Yu Hua, can I ask one last question?"

"Of course, you ask." Yu Hua smiled.

"Why are you asking me to borrow money? I believe you know the value of this technology very well." Lin Wan was silent for two seconds and asked.

Why?

Why should I borrow money from her instead of someone else?

Although Yu Hua wants to borrow 8,000 yuan or even 15,000 yuan, which may seem like a huge amount, in fact, as long as the news is released, there are countless capitalists and dignitaries across the country who are willing to lend money to Yu Hua.

This is a cutting-edge technology capable of monopolizing the entire Chinese sulfuric acid market.

The so-called 'borrowing money' is actually an invitation.

"Two reasons, one is that we happened to meet each other, I don't know who to borrow it from, and the other is that I am happy." After hearing this, Yu Hua blinked and smiled.

After saying that, he turned around and left, heading towards the canteen.

Lin Wan was confused: "???"

Who should I borrow from?

Are you happy?

Seeing Yu Hua leaving gracefully, Lin Wan was extremely speechless, even a little bit dumbfounded.
To be continued...