In the universe where Wei Qingyang was in his previous life, there are several methods to enrich and improve the purity of uranium ore. One is to purify through electromagnetic isotope separators, the second is to purify through gas diffusion, and the third is to purify through the Soret effect. However, these methods were later proved that they were not economical and not efficient enough. Later, after a lot of research, people found that gas centrifugation was the best method.

In a high-speed rotating centrifuge, uranium-238 with higher molecular weight that cannot participate in fission will be squeezed on the wall of the centrifuge barrel. If the molecular weight is lower, uranium-235 that can be used to make nuclear bombs will be enriched at the shaft. Then, the enriched uranium-235 can be exported to obtain uranium-235 with higher concentration.

It should be noted that the so-called uranium-235 or uranium-238 here exists in the form of a compound such as uranium hexafluoride. A defluorination operation is required in the subsequent process before metal uranium can be produced and used to make nuclear bombs.

Wei Qingyang only knows the general process of producing metal uranium, but he is not very clear about the specific technical details, such as how to manufacture high-speed centrifuges, how to connect in series, how to control power, etc. But he has a unique advantage, that is, he can use spells from this world to replace machines, thereby avoiding and ignoring some technical details.

What he has now is just some uranium oxide, commonly known as yellow cakes. It is not very purity and is mixed with a lot of impurities, so it turns gray and black. If you want to make these things into nuclear bombs, there are still many processes to do.

To purify uranium hexafluoride, Wei Qingyang’s first thing to do is to turn the yellow cake in his hand into uranium hexafluoride. This requires a series of chemical reactions and requires various chemical raw materials, such as nitric acid, ammonia, fluorine, etc.

Wei Qingyang looked around and saw only a void.

I can’t even find some macroscopic substances, where can I find chemical raw materials?

At this moment, a giant Qingming sword was quietly nurtured in the boundless white fog, and in an instant, it slashed towards Wei Qingyang with endless power.

Wei Qingyang raised his hands and slashed the sword with the Sky-Climbing Palm again. During this process, lightning and thunder roared, and the star power exploded.

"lightning?"

Wei Qingyang's eyes lit up.

He remembered that nitric acid can naturally be produced during thunderstorms. The raw materials for nitric acid, hydrogen, nitrogen, and oxygen, can be made by spells.

The problem of nitric acid is solved.

Where does ammonia come from?

Ammonia is composed of hydrogen and nitrogen. Wei Qingyang vaguely remembers that the large-scale ammonia produced in his previous life was directly produced by the combination of hydrogen and nitrogen under a high pressure and high temperature environment.

High temperature? The fire of burning the sky can be solved.

High pressure? Zhenhai Jue can solve it.

Container? Tianzhuodi Net can solve it.

Wei Qingyang's brain turned rapidly, resisting the attack of the Lingyun Peak Array, while thinking about solutions to one problem after another.

After all the problems were found, Wei Qingyang let out a sigh of relief. He raised his hand gently, and a thick lightning immediately slashed into the rolling white mist. Around this lightning, a storm followed.

Qingyang Sect spells, Nine Heavens Thunderstorms!

While using the Nine Heavens Thunderstorm, his spiritual consciousness split instantly, closely monitoring all changes that occurred in this space. After detecting the generation of nitric acid, he immediately arrested him with his spiritual consciousness.

Within the Breaking Sky Sword Formation, Jiang Zisheng, who was always watching here closely, was delighted.

Although the power of the Nine Heavens Thunderstorm is great, it is still much worse than the Star Slitting Fist. Now, Wei Qingyang no longer uses the Star Slitting Fist, but instead changes to the Nine Heavens Thunderstorm. What does this mean?

The enemy has reached the end of his strength.

"Continue the attack! That devil can't last long!"

"yes!"

Outside the Breaking Sky Sword Formation, after collecting nitric acid, Wei Qingyang immediately soaked the yellow cakes in his hand into it, causing it to immediately start reacting and form a uranyl nitrate solution. After a series of complex extraction and purification operations, Wei Qingyang raised his hand and bound some hydrogen and nitrogen with the Tianlao Earth Net. A sea-keeping technique was pressed down. As the fire of burning the sky was burning next to it, the pressure and temperature inside the Tianlao Earth Net began to rise instantly.

Ammonia was indeed generated as expected. Afterwards, Wei Qingyang reacted uranyl nitrate with ammonia, and finally produced ammonium diurium diurate, and added hydrogen to obtain uranium dioxide.

After that, Wei Qingyang used the spell learned from a poisonous monster deep in Jupiter to produce fluorine gas through the power of stars, causing it to react with hydrogen to produce hydrogen fluoride, and added water to produce hydrofluoric acid.

The hydrofluoric acid reacts with uranium dioxide to produce uranium tetrafluoride, and the uranium tetrafluoride is reacted with fluoride again to produce uranium hexafluoride.

By increasing the temperature, uranium hexafluoride becomes a gas.

At this point, Wei Qingyang is about to start preparing for the next step of purification.

The purpose of this step is to separate uranium-235 from uranium-238. Uranium-238 is of no use, only uranium-235 can be used to make nuclear bombs.

Even in the previous life, this step was the most difficult step in making a nuclear bomb. Because it requires a lot of energy, it is easy to be discovered by the outside world.

In my previous life, a small country was sanctioned and even washing machines could not be imported. Because the drum of the washing machine could be transformed into a centrifuge used to separate uranium-235. However, here, Wei Qingyang doesn't have to worry about being sanctioned.

But this is also a difficult point for Wei Qingyang.

Because this kind of centrifuge has too high speed requirements. It must reach 600 revolutions per second to separate the two gases with extremely low molecular weight gap.

At the same time, even if the most efficient gas centrifuge method is used to separate uranium-235, its efficiency is actually very low. This requires thousands of centrifuges to work at the same time. The uranium hexafluoride gas separated from the previous centrifuge is then separated by the next centrifuge. This repeatedly improves the purity of uranium-235 bit by bit, and finally obtains the purity that meets the requirements.

"I'm going to go even if I have to bite the bullet."

He casually dispersed a lightning bolt, and Wei Qingyang gritted his teeth and cast his spell again.

It was still made of the Tianlao Earth Net as the shell and the wind control technique as the shaft. A simple centrifuge was created. Under the action of the wind control technique, the centrifuge immediately began to rotate at high speed. But even if Wei Qingyang tried his best, the speed of the centrifuge in front of him was only 300 revolutions per second, which was still far from the requirement.

What's more, a centrifuge is far from enough, it requires thousands.

With Wei Qingyang's current cultivation level, it is almost impossible to significantly increase the speed. This not only involves the level of cultivation, but also involves the subtle control of the power of stars. Wei Qingyang estimated that his cultivation level must at least be improved to a greater level in order to meet the requirements.

If the gas centrifugation method is not possible, then we can only try the other methods.

"Gas diffusion method?"

Simply put, the gas diffusion method uses the principles of different molecular weights of uranium hexafluoride-235 and uranium hexafluoride-238, different molecular movement speeds under thermal equilibrium, and different opportunities to penetrate porous films to enrich uranium-235 bit by bit.

The efficiency and energy consumption of the gas diffusion method are far worse than that of the gas centrifugal method, but accordingly, its technical content is also lower and easier to implement.

Now we can't use gas centrifugation method, we can only use stupid methods.

This still requires the use of the Tianzhuo Earth Net spell, but some fine adjustment is required. Wei Qingyang still used it to make the shell, and then arranged a Tianzhuo Earth Net in the shell. The difference is that Wei Qingyang deliberately made the spell arranged later to make it full of holes, and through his own precise fine adjustment ability, the holes are as small as possible.

Outside, Wei Qingyang also arranged one fire technique and one freezing technique to adjust the temperature.

In this way, a simple gas diffusion separation device is completed.

After a little experiment, Wei Qingyang came to a feasible conclusion.

But the efficiency of this thing is really too low. Even if it is to make nuclear power plant-level uranium 235, which is only three percent enriched, it requires more than one thousand such devices, not to mention making weapon-level enriched uranium with a enriched 90 percent enriched uranium.

There is no way, Wei Qingyang can only achieve this goal by expanding the number.

Fortunately, the previous experience of making millions and tens of millions of thrusters for the asteroid gave him rich experience in the operation of a large number of formations. So he raised his hand and many spiritual materials flocked to them like raindrops, and each piece of spiritual materials was quickly engraved with runes and formations. In the blink of an eye, tens of thousands of "gas diffusion device" formations were made.

The formation can be operated by itself, and Wei Qingyang does not need to divide his spiritual sense to deliberately control it. He only needs to focus on the coordination and connection of different formations.

The uranium hexafluoride gas obtained through a series of complicated means was immediately thrown into the "gas diffusion device" formation by him, and immediately began to enrich uranium-235.

According to his estimate, because the number of devices is large and the efficiency is improved through quantity, it only takes a few hours at most, and the enrichment work will be completed.

After taking a look at his remaining reserve of star power, Wei Qingyang breathed a sigh of relief.

He realized that as long as he no longer used spells of great power, these reserves would be enough.

At the same time, in order to prevent the Potian Sword Sect from disturbing his work, he also arranged several invisible formations to hide himself and those formation devices.

It was only a matter of time before the invisible formation was broken by the Potian Sword Sect, and it was impossible to last too long. But it didn't matter, as long as it could last for a few hours, it would be enough.

Time slowly slipped away, and tens of thousands of formations were constantly running. In this process, the uranium hexafluoride-235 gas was slowly increasing its concentration bit by bit.

When the work finally came to an end, and Wei Qingyang really produced the high-purity metal uranium-235 through the defluorination operation, his heart became heavier again.
Chapter completed!