In Yecheng Industrial Zone, Yu Wen Wen was inspecting the site. He looked at the rows of equipment in front of him, and listened to all kinds of roars, and felt refreshed.

Among the people accompanying the inspection, Liu Yang, who was in a wheelchair, was particularly conspicuous: the emperor was standing, while Liu Yang, who was a minister, actually sat.

It is said that this move is rude, but no one is worried about this: the elderly Liu Yang was injured in the lumbar spine and could not stand for a long time, so the emperor allowed him to take a wheelchair.

Liu Yang also acted as a tour guide to the emperor to explain the development of the chemical industry in Yecheng over the years.

Yuwen Wen looked at the white-haired Liu Yang, looking at the other party's trembling hands involuntarily, and sighed in his heart: This is a sign of Parkinson's disease. Old Liu, Old Liu, you have been tired all your life and it's time to enjoy your old age.

Liu Yang was immersed in the explanation. He could be said to have grown up in Yecheng's chemical industry. Now he introduced the situation to the emperor, just like introducing his other son to the emperor.

Liu Yang has a son, and the young man who is pushing a wheelchair is "Xiao Liu". "Xiao Liu" is a little restrained in front of the emperor, but "Old Liu" is talking nonsense.

More than 30 years ago, the young Xiyang County Duke Yuwen Wen came to Yecheng and met Liu Yang, an alchemy Taoist priest in the city. Since then, Liu Yang embarked on the journey of practicing the "path of chemistry".

More than 30 years have passed in a blink of an eye. Liu Yang is already gray-haired. Because he was injured in a lumbar spine in an experimental accident. Although he was not paralyzed, he fell into the disease and could not stand for a long time. He even had to sit in a special backrest chair, otherwise he would not sit for a long time.

Yuwen Wen was very concerned about this old man from Qiandi who worked hard and made great contributions, and allowed Liu Yang to meet anyone in a wheelchair, including him.

And he is very proud of talents.

When Liu Yang was in Huangzhou, he married and had descendants, but Liu Yang, who was devoted to "proving truth", had been obsessed with chemistry for decades. If Yuwen Wen had not remembered the existence of "Xiao Liu" and asked from time to time, Liu Yang would have almost never made any plans for his son's future.

Even now, Liu Yang is devoted to technical issues:

"Your Majesty, Yecheng's daily chemical production has been increasing year by year, and the previous annual growth was about 1.5%. Since the Nansi opened up the Western Ocean Trade and received large orders, the growth last year has reached 40%.

"The problem we are facing now is that there is insufficient oil and raw materials, and it is very difficult to further increase production..."

Yuwen Wen nodded: "Yes, this is a problem. Raising pigs and sheep requires time, grassland and feed, not just raise..."

Speaking of Liu Yang who was in high spirits, he was introducing the current situation of the soap industry in Yecheng to Yuwen Wen. The main products of this chemical factory are soap and various oil products.

Xiaoxiao soap has now entered thousands of households. At the same time, skin care and lip care products with skin protection and lip effects are also varied.

The prerequisite for the great development of this industry is that there is enough animal fat. Animal fat can come from sheep commonly raised in Hebei, or from the increasing number of large and fat pigs in pig farms.

The collected animal oils and fats are made into soap after saponification. If spices are added, they can also be made into soap. The industrially produced soaps, soaps, and various oil products have a large output, so the demand for raw materials in chemical factories is increasing.

However, the breeding scale of pigs and sheep cannot be expanded without limitation. After the production scale of chemical plants increases to a certain level, it will be difficult to further increase due to insufficient raw material supply.

In this regard, Liu Yang and many technicians have thought of a possible alternative, which is to synthesize oils: extract oil and fat chemicals from petroleum, and then refine them to produce soap and various oil products.

The principle is the same as extracting wax from oil to replace insect wax and beeswax.

If such an idea can come true, Liu Yang feels that the chemical industry will usher in explosive growth.

Yu Wenwen agrees very much with this view because he knows that the petrochemical industry can do this: petroleum contains various organic chemical components, and if these components can be separated and utilized, many chemical products can be produced.

However, with the current technical level, there is still a long way to go to develop the petrochemical industry. Being able to extract paraffin, refined tin oil and some lubricating oil is the limit that the current technical level can achieve.

Using petroleum as raw material to produce chemicals, including soap, is very likely to appear in his lifetime.

Thinking of this, Yuwen Wen patted Liu Yang on the shoulder and smiled and said, "You are so old that you can't stand it. Many things will be left to the young people."

Liu Yang was a little anxious when he heard this, and argued that he was energetic and could still "prove the truth". Yuwen Wen looked at the stubborn old man, then looked at "Xiao Liu" who was pushing a wheelchair behind him, and said in an unquestionable tone:

"No, you have done everything. What are the younger generations doing? You have been busy all your life and owe so much to your family. It's time to pay off your debt."

"Don't always think about experimenting and experimenting, and use young people more, don't be tired of yourself, go and take a look."

The group came to the production workshop. Because the grease smell was very strong in the workshop, Yuwen Wen just looked outside and then transferred to the finished product warehouse.

Looking at the buckets of glycerol in the warehouse, Yu Wenwen was quite satisfied.

The saponification reaction of making soap will produce some by-products. If these products are processed with a specific process, you will get a sweet-tasting oil, which is "glycerin".

According to a specific process, nitroglycerin/nitroglycerin can be obtained by treating (nitrifying) the glycerin with nitric acid. This specific process can ensure that people can produce nitroglycerin in large quantities with sufficient raw materials.

A very simple principle took thirty years to implement.

Yuwen Wen walked out of the warehouse, looked around, and looked at the factories, as if looking for something.

Seventeen years ago, a big explosion occurred here, causing major losses to personnel and property, and the scene was almost razed to the ground.

At that time, Yuwen Wen was a certain distance from the explosion site, but the explosion's shock wave still "blowing" over the carriage he was riding in. The big explosion still vividly remembered him. Now he has been revisiting his old place after 17 years. He is quite moved.

If it weren't for the guidance of others, he wouldn't have known that the location of the warehouse was the place where the explosion occurred.

It was an accident. After investigation, it was found that an indigo that was acidified and turned yellow was the culprit. This yellow dye tasted a bit bitter and sour, called "picuric acid".

This was an unexpected discovery by a technician, so after the big explosion, the bitter taste came out.

Seventeen years have passed in a blink of an eye, and the picy acid, commonly known as "strong explosives", is playing an increasingly important role.

The place where the big explosion has now become the factory area of ​​a new factory. The latest and important purpose of the glycerol produced in the factory is to synthesize a strong explosive.

A strong explosive like picric acid.

This is a new product produced under the great development of the chemical industry and is the result of unity. However, the "spooky temper" brought about by nitrification is not just nitroglycerin.

The "Nitr Brothers" that Yuwen Wen had been looking forward to for many years finally arrived.

One of the costs was that Liu Yang slandered the lumbar spine in an explosion.
Chapter completed!