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Stone Mountain in the north of Gyeyang City. Pen @ fun @ pavilion wWw. ｂｉｑUｇE。 infoHere, half a month ago, it was rarely seen, and now, it is a busy scene.

The first cement plant in the Taiping Holy Kingdom was built.

Originally, Feng Yunshan asked Zuo Zongtang to be in charge of building the cement plant. Unexpectedly, the incident happened suddenly, Feng Yunshan temporarily decided to send troops to Liangguang, and Zuo Zongtang praised the painting with the army. Fortunately, before Zuo Zongtang left Guiyang, many things had been arranged. Limestone has been mined a lot, and there is a lot of coal from Zhenghewei, ten miles outside the city of Guiyang, where there is a small coal mine in Wangjia Village, which has been mined for many years.

As for the clay kiln for firing cement, it had been arranged to be built before Zuo Zongtang left, and it has now been built. Feng Yunshan didn't think that this earthen kiln was built quickly, in fact, he had heard before that in a certain period of more than 100 years, when fertilizer factories and cement factories were built in every county, it only took three days to build a soil cement plant, and it was the third night to put it into production!

However, Feng Yunshan wanted to build a better quality of the kiln from the beginning, so he had a few more days. Although the scale is not large, it is already a big project for this era.

In addition to the clay kilns, four giant grinding machines were built, two of which were placed slightly higher. The second frame is a stone mill, the second frame is a steel mill, because there is a stream around the stone mountain, although the water flow is not large, but there is a bit of a drop, Feng Yunshan found a craftsman, customized a waterwheel, and drove four grinders. One of the stone mills is a steel mill to grind the raw meal, and the other is a stone mill and a steel mill is used to grind the clinker, which is turned into cement.

Some of the best clay areas were selected to mine clean clay as raw materials. Iron ore is produced nearby, and it is also transported by people.

On this day, the Shishan Cement Plant was unusually busy.

In fact, it has been started since last night, and there is a lot of noise. The earthen kiln is ignited with firewood, igniting the coal at the bottom of the kiln, after the preheating, the kiln top side is opened, the iron pipe made of cast iron is used as the slideway, the raw meal is mixed and ground evenly, and the edge of the giant mill slides down, through the iron pipe, it is automatically put into the kiln from the kiln hole, and the stone slab of the kiln hole on the side is closed, leaving only a few places on the top for ventilation. Dozens of people at the bottom of the kiln took turns pulling the bellows to blow the air and let the coal burn through.

It's almost done.

Pry and shake a piece of shake that has been reserved for several zhang long, open the hatch, and roll the clinker into a block from the kiln through an iron pipe to the clinker bin and wait for cooling. Finally, the clinker is ground into powder, and gypsum powder is mixed to become the final cement.

Looking at the hot cement in front of him, Feng Yunshan was in a stirring mood. This is the first batch of cement in the whole of China, and it comes out of my own hands, and I can't help but feel a sense of achievement.

Gotta try it. Feng Yunshan asked the craftsmen to use this first batch of cement, accompanied by some crushed stones and fine sand, to build a wall, to see that there was still a lot left, and began to build a road from the cement factory to Guiyang City. Judging from the shape and color of cement and water, it should not be a big problem, Feng Yunshan has seen the solidification and condensation of many kinds of cement, and he still has points in his heart.

With cement, Feng Yunshan thought about solving the problem of difficult roads in southern Hunan. After the cement proves to be good, it is necessary to expand the scale of production, fortunately, the main material of this cement is very common, and many places can be set up to build factories. At that time, it will be much faster to build all the roads in the southern part of Shonan and string them together as a whole, whether it is to transmit news, send troops, or transport supplies.

As his sphere of influence expanded, Feng Yunshan believed that it was becoming more and more important to be able to deliver information quickly. It's just that in this era, there are no telegraph calls, and messages can only be delivered manually. The speed still depends on the road surface and the establishment of the post station.

Feng Yunshan didn't think about making a few bicycles, but this wooden bicycle, with wooden chains and wooden wheels, couldn't ride fast at all, and it was also time-consuming to make by hand, so it couldn't be promoted on a large scale, and it was not as fast as a few horses running in turn. When you have rubber, you can try to build some bicycles, and steel chains and gears are not very difficult anyway.

The sulfuric acid factory in Zilong Village can already concentrate the sulfuric acid produced into concentrated sulfuric acid with a strong corrosive effect.

Feng Yunshan, who was born in chemistry, knew that Feng Yunshan used an improved process to produce a sulfuric acid content of 76% in theory, and he added a set of sulfuric acid concentration and dehydration device in the sulfuric acid factory, and the sulfuric acid produced by the lead chamber method was heated, concentrated and refined again to produce sulfuric acid with a higher concentration, but there was no condition to determine the accurate concentration value. But Feng Yunshan estimates that it should be at least 80%.

You must know that the content of sulfuric acid greater than 70% can be called concentrated sulfuric acid. The concentrated sulfuric acid has water absorption, and the stronger the concentrated sulfuric acid, the stronger the water absorption. It can not only absorb water in the air, but also absorb the water of some crystal hydrates, such as white sugar, and drop concentrated sulfuric acid, the hydrogen and oxygen atoms in the sugar molecules will be forcibly separated, and the white sugar, which was originally a carbohydrate, will be turned into charcoal. In his previous life, when Feng Yunshan was in high school, he did this kind of experiment, dropping a small amount of concentrated sulfuric acid on white sugar, and the white sugar quickly turned black and carbonized, and after the concentrated sulfuric acid won the water molecules, it also became a little diluted sulfuric acid.

This is the domineering of concentrated sulfuric acid!

Waiting for the hardening effect of the cement, Feng Yunshan brought some refined concentrated sulfuric acid from the sulfuric acid factory, and once again did the chemical experiments in his former student life ---.

A total of two experiments were done. The first experiment was simple and quickly completed. The experiment was successful, looking at the pile of charred charcoal, Feng Yunshan showed a smug smile. What a surprise! Unexpectedly, the purity of the concentrated sulfuric acid produced by myself is so high, it has almost reached the extreme of refining by heating and refining!

The second experiment is a little more complicated. The reason why he wanted to do this experiment was that Feng Yunshan forgot about some things. He only remembered that concentrated sulfuric acid and alcohol could react after heating, but he seemed to remember that there were different reactions at two different temperatures and different proportions, one elimination reaction and the other substitution reaction, remembering this, but he was not particularly clear, so he had to do experiments by himself.

First, one part concentrated sulfuric acid and three parts alcohol are heated, and the reaction begins. The chemical name of alcohol is ethanol, which will vaporize before 80 degrees, and Feng Yunshan uses the difference between the boiling point of alcohol and water to leave the alcohol and water in the brewed rice wine to obtain the alcohol for his own experiments.

When the reaction was positive, Feng Yunshan suddenly remembered that the substitution reaction is the dehydration within the alcohol molecule, and the substitution reaction produces ethylene. And ethylene is not what Feng Yunshan wants now, so he interrupted the experiment. That's another kind of elimination reaction! Feng Yunshan remembered, and soon, he used three more parts of concentrated sulfuric acid and one part of alcohol, gradually heated it, and reacted, can it produce that kind of thing?

By the way, he remembered again. The production of ethylene is at a high temperature, as if about 170 degrees is the best, and the production of the thing he wants is a little lower, about 140 degrees. It's just that there is no thermometer at the moment, and there is no way to measure the temperature, helplessly, he remembers that the ignition point of the paper is 130 or 40 degrees, so he can only try the fire power of the yellow paper first, and then use the same fire power to heat concentrated sulfuric acid and alcohol. Although there is an error, there is no way.

Soon, it was time for that temperature. Feng Yunshan waited for the concentrated sulfuric acid and alcohol in the clay pot to react completely, and introduced the generated high-temperature gas into a leather bag, which was already bulging. Feng Yunshan cooled it with cold water, and the leather bag was held down again, Feng Yunshan shook the leather bag, and there was a sound of water. It should be done! Feng Yunshan knew that only the kind of substance he wanted had this property, above 34 degrees was a gas, and below 34 degrees it became a liquid. If it's ethylene, it's all gas, and there won't be this kind of water sound.

Find a little mouse and put it in a clay jar, Feng Yunshan carefully poured a little liquid from the leather bag and put it into the clay jar, and closed the lid. Then, take the clay pot to the open space outside the house, let people hold their breath, and break the clay pot from afar. I saw that the mouse was already unconscious.

Yes, yes! It worked! The liquid that made the rat unconscious was what Feng Yunshan wanted--- ether*ether!

Originally, he just thought that a female guard camp had been set up in the Holy Army, which could treat the soldiers of the Holy Army. Unexpectedly, most of the female nursing camp were illiterate at all, and it was too slow to follow Huang Yiyun to learn Chinese medicine, so he wanted the female nursing camp to learn some Western medicine skills that could be effective quickly. But for the marching Holy Army, the most effective skill is surgery, which removes the shot buckshot from the body. Just this surgical procedure involves a problem, anesthesia! So, Feng Yunshan thought of a primitive Western medicine anesthetic--- ether*ether.

Inhalation of not too much ether can make people unconscious, and it has the effect of general anesthesia, although it is toxic to the body, but it is worth it compared to treating wounds. But ether is poisonous after all, and a slight overdose of ether can be fatal, so Feng Yunshan has been cautious.

Preparing anesthetics for the surgical operations of the Holy Army soldiers was the original purpose of his desire to make ether.