Hand rubbing nuclear fusion live in the wilderness

Chapter 167 Preparation of Cryolite

Han Yuan also looked at the audience's comments.

Chemistry is indeed a big crater, or the kind of crater.

But it is precisely because of chemistry that human society can become colorful and splendid.

In today's society, any profession is basically inseparable from chemistry.

After the production of aluminum hydroxide was completed, Won transferred it to the container group for preparing cryolite, and then started the preparation.

He did not forget that his final purpose was to prepare aluminum phosphate solution and metal aluminum.

Even cryolite is just a process.

With aluminum hydroxide, the preparation of cryolite can be produced with an assembly container like a whole assembly line.

After processing the materials taken out of the storage room, Won started processing.

The processed and weighed fluorite is placed in the first container, and then the weighed sulfuric acid is added to it.

Then light the alcohol blowtorch under the iron frame and start heating.

During this process, sulfuric acid reacts with fluorite to produce toxic hydrogen fluoride gas.

The hydrogen fluoride gas will pass through the next container along the plastic pipe, and dissolve into the water to become hydrofluoric acid.

The hydrofluoric acid in the container can enter the glass bottle where aluminum hydroxide and sodium carbonate have been placed along the pipeline through the switch.

After being heated at high temperature, cryolite is formed.

Although the process is quite cumbersome, it is much simpler than the production of aluminum hydroxide, which requires several filtrations.

From [-]:[-] p.m. to [-]:[-] p.m., KRW finally harvested [-] kilograms of cryolite.

Compared with natural cryolite ore, artificial cryolite has higher purity.

The small white crystals look similar to table salt at home and have no smell, but they have a wide range of uses.

[Looks like salt?Can it be used for cooking? 】

[What else can this thing be used for besides electrolytic aluminum? 】

[Seeing this, I suddenly remembered that Uncle Syphilis' golden gun is not ideal to use, that thing is a pit. 】

[It looks like heroin salt. 】

[Heroin?poison? 】

【? ? ? ? ? ? 】

[How do you know upstairs?Have you seen heroin? 】

[The police are coming soon, someone here may have taken drugs! 】

There was a lot of noise in the live broadcast room, and Han Yuan didn't pay attention to it, nor did he see the barrage.

If he saw the barrage, although he didn't know what the ice powder looked like, maybe he would ask the system to track down the IP.

At the moment, he is collecting all the prepared cryolite and storing them in narrow-mouth glass bottles.

Compared with the preservation of other substances, the preservation requirements of cryolite are not high, and it does not decompose, volatilize, or deliquesce under normal conditions.

But there are so many uses for this thing.

In addition to being used for electrolysis of aluminum, it can also be used to make white glass, and after adding potassium, it can be made into potassium cryolite as an electric welding flux.

In addition, it is also used as a flux for non-ferrous metals, and to improve the conductivity of the electrolyte.

When he made batteries later, cryolite was one of the necessary materials.

After saving the cryolite, Han Yuan tidied and cleaned all the equipment in the laboratory, then greeted the audience and started the live broadcast.

I have to rest early tonight, and I have to get up early tomorrow.

Otherwise, it may not be possible to make a round trip in one day, after all, the crater is a bit far from the place of residence.

Even the straight-line distance is estimated to exceed fifteen kilometers.

Not to mention the deep mountains and dense forests, you need to go around, and you need to find phosphate rock, maybe one day is not enough.

Early the next morning, just after dawn, Won set off.

Considering the need to travel long distances, this time I brought the newly made large bamboo baskets instead of bamboo baskets.

Although the distance was long, the journey was smooth.

It's just that the search for phosphate rock is really not that easy.

In the end, after spending two days, Han Yuan found several pieces of phosphorus-containing ore downstream of a gap on the other side of the crater.

However, the appearance is not good, the phosphorus content is very low, and it belongs to calcium (magnesium) phosphorite.

Compared with the various metal-rich mines around this ridge volcano, these phosphate rocks can be said to be poor mines.

Not only is the phosphorus content low, but no phosphate rocks have been found near the volcano.

The few pieces of phosphate rock he searched are likely to be igneous rocks left after the volcanic eruption a long time ago.

But it is good to have.

As for the low content, it doesn't matter.

No matter how low the content is, he still has a way to extract the phosphorus in it.

It's just that the process is complicated and the cost is relatively high.

And more importantly, these phosphate rocks also contained another metal that he hadn't found.

"magnesium."

Although the use of magnesium in industry is not as extensive as that of aluminum, there are still many.

In particular, magnesium is more active than aluminum, and can be used for the reduction of metals such as titanium, uranium, and zirconium.

With these pieces of phosphate rock, Han Yuan collected a lot of chromite crystals from the chromite ore in the crater and brought them back.

The ferrochrome crystals collected last time have long been used up, and the rest of the ferrochrome crystals were exchanged by him at the expense of technology points.

This thing is really too expensive, much more expensive than iron and copper.

And the amount is still large, as long as all kinds of mechanical equipment want to be resistant to corrosion, high temperature and fatigue, then in his current situation, it is necessary to add chromium metal into it.

Consumables such as bearings have to be made of chrome alloy as a whole.

It's a pity that this chrome mine is too far away from the place of residence, even if he domesticated some North American bison to be used as coolies, it would be useless.

Because it takes too long to go back and forth, it's not worth it at all.

The main reason is that the North American bison is too stupid. Without his guidance, there is no ability to independently collect ore and bring it back.

Capuchin monkeys can do this, but capuchin monkeys have too little strength.

With the ore collected this time, Han Yuan returned to his place of residence smoothly.

After leaving for three days, there was no change in the surrounding area. Han Yuan took a comfortable bath first, and then extracted the phosphorus from the collected pieces of calcium (magnesium) phosphorite.

The extraction steps are actually very simple.

After the ore is hammered and ground into powder, it is first washed with water and then mixed with concentrated sulfuric acid. The soluble substances such as calcium, magnesium and phosphorus in it will naturally react to form sulfate.

The corresponding sulfates are precipitated and filtered in different ways, and different minerals can be separated naturally.

However, the steps are very simple to say, but the actual chemical operation is still very troublesome.

It took a whole day for Won to extract the phosphorus and magnesium separately.

As for the remaining calcium, it can be settled down.

Calcium sulfate has another name.

"plaster"

In the last step of calcination in cement, the retarder substance mixed in is gypsum, and the main component is calcium sulfate hydrate.

But this thing is not a necessity, there are many substitutes in his mind.

The previous three-component concrete, commonly known as the cement used in bean curd dregs, has long been abandoned by him.

When the chemical laboratory was established, another type of Portland cement was used, which has sufficient strength and sufficient corrosion resistance.

Otherwise, the three-component concrete will collapse sooner or later due to wind and rain for a long time, just like the wooden house he lives in now.

It has only been more than half a year, and the outer wall has begun to show signs of cement peeling off.

It is estimated that after another two or three months, it may collapse.

Although this has something to do with the frequent rain in the tropical rainforest, it can also be seen that the strength of the three-component concrete is different.

However, the requirements for the residence are not high, as long as it can shelter from the wind and rain, when it really leaks, it will be rebuilt when it is.

If it is rebuilt at that time, it should not be this kind of palm leaf roof house, but like a chemical laboratory, it will be paved with bricks and tiles.

The entire process of refining phosphorus is carried out in an air-conditioned chemical laboratory.

The temperature in this ghost place is too high during the day, breaking through thirty degrees easily.

If it is exposed to the sun at noon, the temperature can soar to more than [-] degrees.

If there is no air conditioner to control the temperature, the extracted phosphorus will basically spontaneously ignite.

As for preservation, the preservation of white phosphorus is simple and simple, but also troublesome.

Elemental phosphorus is insoluble in water, slightly soluble in benzene and chloroform, and easily soluble in non-polar solvents such as carbon disulfide, kerosene and paraffin.

However, the slightly soluble solution will still dissolve, and the phosphorus solution will be evenly distributed after melting, that is to say, the solution whose surface layer is in contact with air still has the risk of spontaneous combustion.

Once it ignites spontaneously, benzene, kerosene, paraffin, etc. can all be ignited, and it will be cheating at that time.

Therefore, the preservation of elemental phosphorus can only be done with water.

In addition, the temperature for storing phosphorus must be low enough, and the glass bottle used for storage must also be opaque.

Modern laboratory storage of phosphorus is generally done by adding water to a brown glass bottle and storing it at a temperature of one degree.

It is troublesome to say that it is troublesome, but it is also simple to say.

Fortunately, the Korean won's demand for phosphorus is not high at present, and the phosphorus produced will be used up soon.

If it weren't for the high-purity phosphoric acid needed to prepare aluminum phosphate, the South Korean won wouldn't have to toss so much.

The preparation of phosphoric acid is much simpler than that of elemental phosphorus.

Phosphate was prepared when sulfuric acid was used to dissolve phosphate rock, but the purity was not high.

Real pure phosphoric acid is produced by reacting nitric acid and elemental phosphorus.

Because phosphorus is relatively difficult to preserve, even at night, the Korean won immediately converted it into phosphoric acid after the phosphorus was extracted.

Preservation of phosphoric acid is much easier.

Just need to pay attention to moisture.

The raw materials of aluminum phosphate, the key item for the preparation of 'ZS-522 high temperature resistant and anti-adhesive protective coating', have been prepared.

You can start working on it tomorrow.

After tidying up the laboratory, saving the prepared items, and recording some information about the preparation of phosphoric acid today, Won washed up and went to sleep.

The next day, in the early morning, Han Yuan woke up on time.

Due to yesterday's preview, the viewers who watched the live broadcast knew that the Korean won will be smelted today to prepare a high-temperature resistant and anti-adhesive protective coating. When the live broadcast started, the number of viewers began to soar.

Some relevant insiders of Huami and the two countries also waited in the live broadcast room early to wait for the live broadcast to start.

(End of this chapter)