The Cavalry Commander can be said to be not much different from the Captain Lu Bu, and they are both subordinates of the same county.

It just sounds good in name.

This is also the limit of Ding Yuan.

This time he gave the imperial court a speech to see what reward the Han emperor would have.

But it should be very difficult because the current Han Emperor was living a uncomfortable life.

Two days passed like this, and Lu Bu was doing experiments in a huge military tent.

Of course, this momentum is not called experiment.

But I just reviewed the previous knowledge.

A simple filter device, and then heat and dissolve the slightly black salt particles in a sack in water.

Then, through multiple layers of filtration, a relatively pure salt grain was obtained.

In order to achieve the purpose of purification, this will result in a very valuable refined salt.

Although the salt and iron in the Han Dynasty were a state-owned specialty, at this time, some smuggling was also very obvious.

Otherwise, Lu Bujun would have lost all his limbs because he could not eat salt.

However, the salt that is normally bought and sold is very rough, which may be because it is about to fall off the scale, so a lot of things that cannot be eaten.

If you want to eat that pure snow-white salt, you can only get the well salt from Yizhou.

But the output is a little small, and most of it is specially supplied. It is too difficult for Lu Bu, who is far away in Bingzhou to eat it.

So now, he wants to perform a simple purification and experiment with whether it can be done.

In the big tent are middle-aged women with quick hands and feet, and they are all good at work, so Lu Bu let them come here.

The main reason is that these women are easy to control, so outsiders don’t know about such methods.

At this moment, there were a total of four wooden barrels in front of Lu Bu.

This kind of wooden barrel is similar to an ordinary water lifting bucket.

The four wooden barrels are divided into four layers from top to bottom. The things filled in each layer of wooden barrels are different, and the bottom of the barrels are made of very small holes by craftsmen.

This facilitates the discharge of salt water.

The uppermost layer is full of ordinary linen, with some cotton placed in the middle of the face.

Cotton is a scarce item.

Lu Bu also used all the ones that can be used to get this purer salt.

Then in the second layer was charcoal, which was filled with densely packed, and then wrapped in sackcloth to form the second layer of filter.

The third layer is also charcoal.

The purpose of these things is not to explain much, but the purpose is to prevent some magazines from passing.

As for the fourth layer, there are still stuffings of linen and cotton.

These devices were fixed by wooden frames, and many Han craftsmen were abducted from the Huns, so Lu Bu directly requisitioned them. At the same time, Lu Bu also treated these craftsmen in a special way, so that they could have a special role, and they did not only know how to work like slaves.

There is a large wooden barrel near this filtered area where coarse salt will be melted.

Then pour the very high concentration of brine into the filter one by one.

Then the salt water that is picked up at the bottom will be heated in a pot.

The salt particles crystallized by thermolysis will look cleaner.

This is just Lu Bu’s plan.

Then he started to arrange for people to do it.

A sack of coarse salt was poured into a large wooden barrel, and then added water and stirred until the salt was not visible, it was basically saturated.

At this time, Lu Bu also saw that the water in the bucket became very turbid.

This kind of salt is in this era. If it were placed in the future, it would have been sued for a long time.

"Scoop them into the bucket and pour them into the top bucket."

"Yes, General."

At this time, a woman began to dress up as Lu said, carrying a bucket.

Then at this time, Lu Bu said to the other two people who were burning the fire: "This fire can also be burned. Use a wooden basin to collect the water flowing out, and then put it in a pot for heating. During the heating process, stir with a wooden stick."

"Yes, General."

Several women listened carefully to what Lu Bu said, and then did what Lu Bu said.

They were all nervous when they were first entered into this small military tent by Lu Bujiao.

It was really this powerful general who called so many women into the military tent at one time, and no one inside or outside the account allowed them to exist, which made everyone think that this general was too fierce.

It was only after coming in that everyone realized that the general had to do something that was not as good as the heretics, so they were allowed to come here to do some hard work.

Buckets of salt water were poured into the top wooden barrel.

There was no water flowing out from the bottom.

But everyone was also curious about what was in these wooden barrels, which were full of stuffing.

The salt water poured in looks very turbid, and I don’t know what this effect is.

But after just a little wait, water flowed out from the bottom bucket, and the water flowed faster and faster.

A small wooden basin was almost the same as before, so the woman who was waiting quickly changed to an empty basin with quick eyes and hands. Then she held the very clean water and felt strange, where did the turbid things go?

However, although she was curious, she still quickly poured the salt water into the pot.

At the same time, the heat under the pot began to be ignited, and a woman in the pot stirred vigorously.

As the fire gets stronger and stronger, hot air is coming out of the pot.

Everything started. Lu Bu planned to purify two sacks of coarse salt in total, so he saw that the salt water in the bucket was almost finished, so he asked them to continue to dissolve the salt.

Due to life reasons, the temperature in the big tent is getting higher and higher. People working very hard, and then they all look sweaty on their faces. However, they are many people and can exchange things with each other, but this has never stopped.

The water in the pot starts to evaporate slowly due to heating, so that water can be added all the time.

As more and more salt water was added, the stirring people also found the troops.

Because she found that there was a layer of white on the bottom of the pot.

However, Lu Bu, who was standing by, kept observing, he did not shout to stop, and these women had no intention of stopping.

After no salt water flowed out, Lu Bu asked the others to stop, leaving only the fire-burning and stirring the salt water to be still doing things.

As time passes slowly.

There are more and more white particles in the pot.

The people who work basically recognize what this is.

Salt.

What is indispensable for life.

But the salts seem to be too white and there are no impurities.

When there is not much water left in the pot, the salt particles in this large pot are still very objective.
Chapter completed!