Traveling through the sword to engage in military industry.

Chapter 23 Chemical Engineering Tutor
The rental house in Jincheng is still relatively safe for the time being. Ren Zhong does not plan to change the return location, so he directly chooses his residential community house as the fixed return point. The system happily confirms it this time.

After he confirmed that he had traveled back to the fixed location in the main plane, a new situation appeared in the system.

“Draw the sword and travel through the system.

Current time and space: February 2024, Balizhuang, Jincheng.

Countdown to return: 23:59:58.

Points: 17200.

Do you choose to return to a fixed position?

Currently you can choose to return to a fixed location, the cave in the back mountain of Daxiawan, Jinzhong.

No option to return to last traversal location."

Sure enough, after the system upgrade, some new stuff finally appeared, and I can choose to return to the fixed position.

However, the fixed position cannot be more than 10 miles away from the actual crossing address of the return. This function looks awesome, but in fact it is almost useless at this stage.

So Ren Zhong quickly started his research on this thing. In his opinion, the most urgent task was to solve the problem of the 81 Chemical Plant as soon as possible.

You can't count on Zhao Lidong for this thing. Only those who are poor at science subjects like chemistry choose to study liberal arts. So Ren Zhong was very smart. He searched for chemistry tutoring information on the Internet and started calling one by one.

"Teacher Li, I simply want to study some chemical reactions and preparations, but I didn't learn chemistry well in high school, so I could only study liberal arts. Now I want to make up for these regrets. It feels very interesting to study these chemical reactions." Ren Zhong said to the first chemistry teacher who called him.

"Mr. Ren, I originally thought that I was applying for a tutoring job in high school chemistry experiments. I have never met an adult like Mr. Ren who studies chemistry experiments before. Maybe it is not what you expect, Mr. Ren." After listening to Ren Zhong's thoughts, Li Subing chose to refuse almost without any questioning. Accompanying adults to do basic chemical reaction experiments made Li Subing feel a little unreliable.

Which adult would learn to play with this thing?

"Teacher Li, don't be so quick to refuse. The price I can offer is 600 yuan per class hour. The chemical reactions we study are basically beyond the scope of high school chemistry, such as the preparation of sulfuric acid and nitric acid. We use a relatively old chemical distillation method to verify whether it can be achieved. If it can be achieved, what kind of improvement in efficiency can be achieved."

"If you are free, let's talk in person. I am not kidding. I really want to find a chemistry experiment teacher to help me improve. In terms of class hours, we have set 30 class hours in the first period, one class hour per day. I will drive Teacher Li to a place to do experiments, and then drive back. I will pick him up and drop him off during the study period."

Li Subing was somewhat tempted by the condition offered by Ren Zhong. He was a high school chemistry teacher, but if Ren Zhong's requirements were really some high school experiments, he might as well give it a try. The other party would guarantee the pick-up and delivery, and if it failed, the worst that could happen was that he would lose some time.

"Okay, let's add each other on WeChat and share each other's location information for easy contact."

Li Subing couldn't resist Ren Zhong's financial offensive and finally agreed.

In the farmyard, Ren Zhong and Li Subing soon appeared here. Ren Zhong had purchased sulfur ore and various beakers and utensils.

Li Subing followed Ren Zhong into the courtyard. After listening to Ren Zhong's introduction and some of the preparations for the scene, he felt dizzy.

"Mr. Ren, to be honest, your so-called simple high school chemistry level chemical experiment guidance is actually much better than the knowledge required by high school. I didn't expect that you still have the idea of ​​boiling sulfur from ore. This matter is really too complicated." Li Subing shook his head as he listened.

"Teacher Li, I understand. How about this? We will raise the tuition fee to 800. If Teacher Li has any questions, you don't have to answer them on the spot. You can go back and study them before replying."

In the original historical time and space, the military workers of the Eighth Route Army had long known that sulfuric acid was the mother of chemical industry. The key to making high explosives was to produce sulfuric acid.

Due to the Japanese "mopping up", in February 1939, the Technical Research Society of the Supply Department of the Jizhong Military Region (established in Loudi Village, Renqiu County in August 2) moved from the Jizhong Plain to Gegong Village, Tang County in the mountainous area of ​​western Hebei. Here, they successfully produced sulfuric acid using the "laboratory method" of bottles and cans.

However, it is not easy to produce sulfuric acid in batches using industrial methods. Acid-making equipment must be acid-resistant and corrosion-resistant. In the base area where material conditions were extremely scarce, finding lead and stainless steel became an impossible task. In March 1940, in the absence of a lead room and stainless steel, the technicians used their ingenuity and bold innovation to successfully trial-produce sulfuric acid in Shennan Town, Wan County using locally abundant clay jars, creating a new sulfuric acid production process called the "jar tower method", achieving a major breakthrough.

On June 1940, 6, after the Eighth Route Army General Staff learned that the Jin-Cha-Ji Military Region was able to produce sulfuric acid and nitric acid, they immediately sent a telegram to the then commander to express their congratulations: "You are now able to produce sulfuric acid and nitric acid by yourself. This is a great progress in our industrial construction and the key to solving industrial construction, especially the construction of the military industry. The headquarters also tried to produce sulfuric acid by itself, but failed. Now the sulfur production area in southeastern Shanxi is occupied by the enemy and there is no source. It is impossible to produce it by yourself. The border area produces sulfur and can already produce (sulfuric acid) by itself. I hope to expand it in large quantities to supply all industrial departments in North China, first of all to meet the needs of the (military) industrial department, and strengthen improvements in quality..."

In May 1940, after investigations, the factory site was finally selected in the relatively secluded Da'angou Village (Wangjiazhuang) in Tang County. In July, Da'angou Chemical Factory was officially established. In order to keep it secret, the chemical factory was called "Vinegar Factory" at that time. In the winter of the same year, it was named the First Chemical Factory of the Ministry of Industry of the Jin-Cha-Ji Military Region.

In the early days of the factory, there were only more than 30 people. Under the guidance of Huang, the person in charge, Zang, the director of engineering, and Wei, the technician on site, they worked hard for two months and used local methods to manufacture a set of multi-cylinder connected tower acid-making equipment and acid-distilling equipment, called "cylinder tower method" acid-making, and began to produce while testing. By the end of 1940, the acid-making equipment was gradually improved, and sulfuric acid production was on track. Every day and night (three shifts at the time), more than 98 kilograms of concentrated sulfuric acid with a concentration of about 50% could be produced.

With the gradual improvement of production conditions and the continuous improvement of workers' technical level, the chemical plant also produced nitric acid, smokeless powder and other products, and its efficiency and output continued to increase. By 1942, the monthly output was 1000 kilograms of nitric acid, 3000 kilograms of sulfuric acid, and 200 kilograms of nitrocellulose.

The production conditions at Da'angou Chemical Plant were extremely poor, with no means of protection, and the entire operation relied on dedication and hard work.

Ren Zhong's chemical plant is preparing to replicate and improve the Da'angou Chemical Plant.

However, Ren Zhong not only needs to replicate, he also needs to improve so that the production conditions of the new factory can be greatly improved to reduce the harm to the human body. Therefore, Ren Zhong finds a chemistry tutor to conduct experiments one by one according to the processes he decomposed, and then find ways to improve them. After solving the problems step by step in the main plane, he will transplant them to the Liangjian plane.

The first chemistry tutor he found was only a high school chemistry teacher, but his knowledge in chemistry was obviously much better than Ren Zhong's. After reading Ren Zhong's experimental plans, he felt that the money was not easy to make, but who made Ren Zhong keep increasing the money?

The process from sulfur ore to the final production of concentrated sulfuric acid is very challenging for Ren Zhong, but for a chemistry teacher like him, it is just a bit troublesome.

Therefore, even though it was his first time to receive an opportunity to be a private tutor for a non-exam-oriented education program, Li Subing took the job despite having to hold his nose!

After all, making money is not shameful!

(End of this chapter)