86_86612A round of crescent moon hangs high in the dark sky at midnight in early winter, and the faint moonlight is reflected in the backyard of Nanbetsu Palace, although it is midnight, but the backyard is still lit in the warehouse that has been idle for many years, and the light of the electric lamp is reflected into the courtyard through the glass window, through the window, the guards outside can see the people in the room, wearing a white coat, walking around from time to time, in front of him is a pile of glassware, and beside him, there are several teenagers, also wearing Western-style white coats.

“…… Bayer's first synthesis method because its route is too long, the yield is very low, not only the cost is too high, and the quality is not good, so it can only stay in the real room stage, so it then studied the second synthesis route, which should have been published 8 years ago, and his second synthesis method was built by BASF this year to drop bombs, and its products have been able to compete with natural indigo because they are relatively cheap, but it is still not mature enough, and the quality is not as good as natural indigo! ”

While explaining to the teenagers around him who loved chemistry and had made breakthroughs in chemistry, Tang Haoran recorded his experiments in the test notebook.

More than half of the test equipment in this chemical laboratory was added in the past period of time, although there are many affairs every day, but Tang Haoran will always squeeze out a few hours to conduct chemical experiments in this "private laboratory", thanks to his hobby of chemistry in high school, otherwise he would not remember so much chemical knowledge.

Although the carburizing steel test had been completed by using self-made equipment, Tang Haoran chose chemistry as a breakthrough for a very simple reason: the late 19th century to the early 20th century was a period of great development of the chemical industry. It was also during this period that cheap synthetic raw materials replaced natural raw materials.

Just like the indigo that Tang Haoran is synthesizing now, this is an extremely widely used blue dye, and it is also the basic color of the dye. From the 20th century BC to the present, the indigo used all over the world is extracted from natural plants and is relatively expensive.

For this reason, decades ago, British, French and German chemists began to study natural indigo in an attempt to synthesize it. It was only ten years ago that Bayer applied for a patent for the chemical synthesis method of indigo, but both the first method and the second aspect have the shortcomings of high cost and low yield. It was not until Professor Hu Man of the Swiss Federal Institute of Technology invented the "Hu Man Method" that synthetic indigo replaced natural indigo.

The synthesis method that Tang Haoran is experimenting with now is the "HP method" improved by German chemists based on the "Humann method" in 1901, and even after a hundred years, the "HP method" is still the mainstream of indigo production.

According to Tang Haoran's idea, he hopes to replicate the "HP method" to produce indigo, and establish a corresponding dye synthesis factory to export indigo to China, Japan and the United States. Chemical dyes may be marginal in later generations, but they can be called profiteering in this era because natural dyes are more expensive.

“…… Amina is added when the alkali is melted, and its melting point is 210 degrees. It can not only reduce the temperature and carry out alkali melting at 180-210 degrees, but also prevent the hydrolysis of N-phenylglycine by interacting with the water generated by the reaction......"

Even though he was conducting experiments, Tang Haoran still hadn't forgotten to educate the teenagers around him. These teenagers graduated from the Church School in China and showed a talent for chemistry while still in school. It is precisely because of this that Tang Haoran recruited them to his side as his experimental assistants.

Maybe Tang Haoran, who is just a hobby of chemistry. He doesn't have much talent in chemistry, but compared with those elite chemists of this era, Tang Haoran has more than a hundred years of knowledge accumulation, which is regarded as an "epoch-making invention" in this era, and after a hundred years, it is just a topic in chemistry textbooks for junior and senior high school students.

Because of his personal hobbies, Tang Haoran, who dived in the chemistry enthusiast forum in high school, benefited from the effect of "sequelae", and the chemical knowledge he had read in the forum could be clearly recalled at this time, just like the process and history of indigo, which was mentioned in an article I had read in the forum, not only the synthesis method, but also the corresponding process route.

In this embryonic era of the chemical industry, the chemical industry not only stores huge wealth, and its investment is less than that of the metallurgical industry, at least in chemical industry projects such as synthetic dyes, the investment only needs tens of thousands to hundreds of thousands of yuan, that is, you can build a factory with an output of thousands of tons, and the annual profit of this industry will be as high as millions of yuan. And this is the reason why Tang Haoran chose chemistry as a breakthrough - the technology is simple and easy to produce.

"Sir, daytime experiments have proved that this synthesis method you invented can also prevent another side reaction......"

Looking at the test records, Ding Yujie said softly on the side, when he looked at Mr., like the classmates around him, his eyes were full of admiration, and this worship was entirely because in the past period of time, they witnessed Mr. one invention after another, although several of those inventions are improved on the inventions of others, but there is no doubt that after Mr. improved, it is more practical value, of course, it is more economical.

"Hmm!"

Nodding, Tang Haoran glanced at Ding Yujie first, and then turned his gaze to others, the look of worship in the eyes of the teenagers made him a little fluttering, an average of one "invention" every three days, how could it not be worshipped.

Maybe one day, he can still win the Nobel Prize, standing on the shoulders of giants Tang Haoran, there will never be a trace of doubt about this, such as the invention of synthetic ammonia, in this era when synthetic ammonia has not yet occurred, I don't know how many chemical experts are working hard for synthetic ammonia, but for themselves, the synthetic ammonia process is just a test question in high school chemistry textbooks.

Synthetic ammonia!

Thinking of this, Tang Haoran's eyes couldn't help but light up, now is the era of Chilean saltpeter, whether it is gunpowder manufacturing or the fertilizer industry in Europe, it is inseparable from Chilean saltpeter, to be precise, nitric acid. It is also because of the industrial and agricultural needs of Europe and the United States, especially after the depletion of guano resources in Peru, Chilean saltpeter has become a sought-after commodity for agricultural farming in Europe and the United States, and its luxury demand for saltpeter is growing, which has contributed to the high price of saltpeter, and has won the reputation of "white gold", and 1880 to 1920 is known as the "saltpeter age" in Chilean history, and the export of Chilean saltpeter has driven the economic development of the country.

It was synthetic ammonia that ended the "saltpeter age", after World War I, the synthetic ammonia technology invented by Haber was handed over to Britain, France, the United States and other countries as part of the war reparations, so that cheap synthetic ammonia and synthetic nitrate quickly replaced Chilean saltpeter, but before that, the prosperity of Zhengbai saltpeter indirectly or directly promoted the development of Chilean industry.

Even relying on the two strategic resources of copper and saltpeter, Chile now has a very prosperous life, becoming one of the three great powers in South America in the late 19th and early 20th centuries, and its economic strength is the first in South America, and it relies on the hundreds of millions of gold pesos brought by saltpeter every year.

If synthetic nitrates are introduced now and then exported to Europe and the United States, then ...... Thinking about the market of hundreds of millions of taels of silver per year for synthetic nitrate, thinking of the huge profits during the period, the dyes that he had hoped for in the tens of millions of taels of silver per year could not be compared with his nature, and after looking at the time, he saw that it was already twelve o'clock, and Tang Haoran instructed Ding Yujie and others.

"Okay, it's not too early, you go back first, today's experiment must be kept secret and must not be leaked, especially Professor Louis!"

Professor Louis in Tang Haoran's mouth is a British professor of chemistry, who was a professor at Tokyo Imperial University, and after his four-year contract with the Imperial University ended this year, he was hired to North Korea as the head of the Department of Chemistry of the Tongwen College.

Ding Yujie and others didn't know the importance of confidentiality, and hurriedly responded, and then respectfully withdrew from the laboratory, after everyone left the laboratory, Tang Haoran did not go back to rest, but continued to study, to be precise, the synthetic ammonia process route, and the synthetic nitrate process route were written on the test record.

"The Haber method for ammonia synthesis requires a high pressure of 20~50MPa and a high temperature of 500C, and uses iron as a catalyst. Ammonia is synthesized by hydrogen and nitrogen under catalyst, high temperature and high pressure, with a conversion rate of 10%-15%. ”

Simply recalling the summary of the content in the high school textbook, even a century after the Haber method was put into use, the world still produces ammonia in this way, the process is not complicated, and it can even be said to be very simple, of course, in this era, it may be limited to Tang Haoran alone.

"For the sake of coal or coke, syngas is first made by gasification, and then the crude raw gas is purified to remove hydrogen and nitrogen...... Ammonia synthesis synthesizes ammonia by compressing a pure hydrogen and nitrogen mixture to high pressure and using a catalyst. ”

After writing the process route of synthetic ammonia, Tang Haoran took out his hand and looked at it, it was already three o'clock in the morning, and at this time he did not have a trace of sleepiness, if it were not for the lack of equipment needed for synthetic ammonia testing in the laboratory, I am afraid he would start the test now.

"Let's try it again when we have the equipment when we get back!"

Talking to himself, Tang Haoran locked the test notebook into the safe, and then walked out of the laboratory and found himself in the courtyard outside the test room, staring at the stars in the sky, with a little smug on his tired face. For him, standing on the shoulders of giants, for the first time, he truly realized what knowledge was stored in his mind, not just wealth, but even the future of a country!

"Perhaps, when I come back, I should take advantage of the present to write down all these things and give them to study, but ......"

This thought was only a fleeting moment, after all, there are not many talents around me now, and naturally there is no suitable person to engage in this research.

"Hey......"

The lack of talent made Tang Haoran, who was originally ambitious, frown, and a little sadness flashed on his face in an instant.

"It's really hard to do!" (To be continued).