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Free Web Novel,Novel online - All in oicq.net -> Historic -> Anti-Japanese military industry is king Three hundred and seventieth chapters wet copper smelting
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- "Wet copper smelting? Isn't it using a special furnace?" Qin Baoshan asked.
Speaking of metal smelting, Qin Baoshan has not seen much. What he has learned before is mainly blast furnace ironmaking. A furnace pours ore from the top, burns in the middle, and flows molten iron below. He is familiar with such things, but, that He doesn't know about the smelting of a special metal.
However, generally speaking, since it is smelting metals, it is always necessary to burn a special furnace, right? Now, what is it called wet method? It should be a fire, right?
"This is our ancient smelting technology." Liu Jiabao said there.
In fact, the motherland is an ancient civilization. In ancient times, bronze wares began to be produced. Because copper has a low melting point, copper was first used in ancient times, much earlier than iron.
At that time, the wet method of copper smelting was used. This technology originated from China. It was called "copper immersion method in bile water" in ancient times. In the Tang and Song Dynasties, they were mainly concentrated in Jiangxi Qianshan, Dexing and Guangdong Lingshui. There are copper mines in these places, especially the ancient mines in Tongling area. No matter in terms of scale or age span, they can be said to be the symbols of the country. It has been the center of copper mining and smelting almost from Shang and Zhou Dynasties to Tang and Song Dynasties.
The annual output of copper is 2,000 tons, all of which are hydrometallurgy.
However, the main method of smelting in the West is pyro-smelting. In later generations, 80% of copper is obtained by pyro-smelting, and hydro-smelting has become outdated.
And since this kind of hydrometallurgy has been used since ancient times, it is logical for the Eighth Route Army, which lacks modern industry, to use this method.
"Wet smelting, in fact, is to use a solvent to leach copper ore or copper concentrate to make copper into the solution, and then recover copper from the copper-containing solution after purification." Liu Jiabao said: "Because we can already produce sulfuric acid , Therefore, we use sulfuric acid for smelting, and the chemical reaction equation"
Li Yunlong's head is already getting dizzy from listening there, stop, stop quickly, I don't understand what you scholars are saying, I can only feel that there are little stars in front of me!
Qin Baoshan came to his senses there: "It's the same as washing gold."
In later generations, there is this way, some people's own gold jewelry is dirty, they take it for free cleaning, but in the process of cleaning, the gold has been immersed in the solution, from ancient times to the present, a free lunch is ultimately the best Dear.
Help those who clean for free, the more you wash, the better. When enough gold is immersed in your own solution, you can replace it.
The whole operation does not use smelting, but uses the method of chemical solution, so it is copper hydrosmelting.
?Thanks to my knowledge of chemistry in my previous life, I knew about it, so I casually said, "Copper sulfate?"
Since it is replaced in sulfuric acid solution, then it is copper sulfate? Then find a way to replace the copper in the copper sulfate with other metals.
Liu Jiabao's eyes lit up: "Director Qin, you really are a god, you know everything."
Originally, I wanted to show off. After all, although it existed in ancient times, I have never learned how to make it in ancient times. It was completely figured out after everyone came here, including the most important wet smelting process: Leaching, extraction, stripping, metal preparation.
These are all figured out bit by bit. It seems that no matter what it is, Factory Manager Qin knows it all.
It is really hard to believe that the other party has never been to school.
"The whole process was mainly studied by Daguang." Liu Jiabao said.
After all, Zhang Daguang made a mistake. Although he did not pursue it in the end, he can no longer be the director of the research institute, and he has become an ordinary researcher again.
Hearing Liu Jiabao's words, Zhang Daguang raised his head there, glanced at Qin Baoshan, then lowered his head again without saying anything.
He doesn't like to talk very much anymore, and he has been very depressed recently. Since that incident, he has been less talkative. The woman he likes has married someone else, and he has shown his cowardly and ugly side, and even almost killed her. I have become a bad person. Thinking of this, Zhang Daguang has mixed feelings in his heart, and he doesn't even have the courage to speak. He just does research there all day, and his efficiency has improved a lot.
Qin Baoshan glanced at Zhang Daguang. At this time, Gao Lili happened to pass by. Although the cotton-padded clothes she wore in winter were thick, she also wore a white coat outside, but this kind of white coat was not the full-body white coat of later generations, but more like A large apron with two white sleeves, and the medical kit on his shoulders, he looked like a medical worker.
She has been officially assigned to work at the base, and she is busy every day. Today, a researcher coughed here, so she came over to show her, and she happened to walk over.
Seeing Qin Baoshan, Gao Lili had a playful smile on her face: "Hey, you are so busy, how come you have time to come here? By the way, sister Qin is gone, you, don't do bad things while she is gone .¡±
Qin Baoshan looked at this playful girl, feeling helpless in his heart, then glanced at Zhang Daguang over there, and when he heard Sister Qin, his body trembled, and it was conceivable that he was touched again.
So, Qin Baoshan said with a smile: "Doctor Gao, you are the only medical staff in our base. Comrade Daguang is sick, why don't you show him?"
"Sick?" Gao Lili glanced at Zhang Daguang over there, and said, "What's wrong?"
"Heart disease, he needs a psychiatrist to enlighten him." Qin Baoshan said, "How about it, have you studied it?"
In fact, Gao Lili was mainly used as a nurse, not a doctor. However, the Eighth Route Army was short of manpower, so many nurses became doctors after being helped by doctors. Without systematic study, it is even more impossible. Know what the profession of a psychiatrist is.
"Heart disease? Psychiatrist?" Gao Lili didn't even look at Zhang Daguang, and said, "Hmph, an old man who is as fragile as Lin Daiyu? When something happens, he keeps it in his heart and washes his face with tears all day long? What else does he need?" A psychiatrist? What he needs is a beating, for such a person, a beating would be fine."
Gao Lili's voice was full of contempt, and Zhang Daguang's hands were clenched into fists. When did a girl say that?
but¡
"Lili, how can you talk like that?" Li Yunlong also felt a little aggrieved for Zhang Daguang and was beaten? Is it okay to have a meal? You call him a grandson, but he is a talented student from the capital. (Remember the site URL: www.hlnovel.com - Didn't finish reading? Add this book to your favoritesI'm a member and bookmarked this chapterCopy the address of this book and recommend it to your friends for pointsChapter error? Click here to report
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