Chapter 945: It melts when I hold it in my palm (two chapters first)
"Electrolyte? This is, but this thing is probably not easy to do, it takes a lot of time." The comrades in the aluminum factory naturally know the importance of electrolytes, but for them who lack theory, this thing can only be an exhaustive method.
The exhaustive method is enough, it is enough to be lucky once, but it is not good to be lucky even if you die. The comrades are very sober and have no idea of putting their hopes on luck. That is not a healthy state.
But what they didn't expect was that luck was not on them, but on Gao Zhendong.
He wrote a very long string of English letters on the blackboard.
"You try this."
Now, where Gao Zhendong attends the meeting, he has experience. He puts the entire blackboard there first. Chief Engineer Gao may have to write and draw at any time. If you are not prepared, it will be your own loss.
The comrades from the aluminum factory looked at Gao Zhendong with a little confusion, and then looked at the string of characters on the blackboard that were precisely the digits after the decimal point.
Na3AlF6-AlF3 (10.87%-16.67%)-Al2O3 (3%)-CaF2 (4%)-LiF (0-6%)-NaCl (0-8%).
No, how did you know this thing works?
But no matter how confused he is, Chief Executive Gao’s reputation is, there is nothing he can’t do if he takes it out.
Comrades, no matter where this thing comes from, copy it down first and talk about it! Each of them uses their pens as if they are flying, writing quickly.
While they remembered, Gao Zhendong seemed to remember something: "If there is difficulty in obtaining lithium fluoride, you can also consider magnesium fluoride. However, the specific ratio may be necessary to try it yourself. I didn't think about it in that direction at the beginning."
In fact, I didn't think much, it was purely based on memory.
Enough is enough, not only has the optimal solution, but also the alternative formula. Even if the alternative formula has not been solved, it can be used at least. If there is a way, there is a way.
In engineering, many examples that have not been completely solved by theory but do not hinder practical application are, such as the famous N-S equation.
But some comrades also remembered that when Chief Executive Gao was doing ESR, he changed the slag system. That thing is similar to this electrolyte to some extent.
It seems that it is not surprising that General Gao is a good person and has all his knowledge.
Gao Zhendong's operation made the comrades in Qianshan accompanying him stunned. Is this the strength of the top technicians? I have gained more knowledge.
The comrades from the aluminum factory happily copied the electrolyte and then said, "General Engineer Gao, you mentioned four lows and one high just now, but the electrolysis process is a dynamic process, which is not easy to control. The temperature is easy to say. With your thermocouple, it doesn't cost much, and the measurement is fast and accurate. However, things like aluminum oxide content and molecular ratio, we can only control them by timed feeding in the electrolysis process, which is a bit out of touch with the actual reaction process and cannot achieve the best effect."
Gao Zhendong opened his mouth to the professional term for automatic control: "Well, I just saw your production process and process. It is indeed open-loop control, and it does not take into account the feedback from the actual process. If the loop can be closed and dynamically adjusted to the previous parameters, the energy consumption should be better. This is not difficult, just measure the resistivity. As for control, there is a microcontroller, which is cheap, and compared with the energy-saving effect, the cost is simply a little bit."
In theory, this should be a very natural thing, but the comrades in the aluminum factory showed a look of difficulty on their faces. "Mr. Gao, you know, the situation here is quite difficult, and the personnel... computers are new. Even if we go out to learn here, it will be difficult for computer talents to come back." The comrade from the aluminum factory explained.
Gao Zhendong suddenly realized that there are computer talents everywhere now. Although in principle, students go back and forth, this is a special emerging technology. College students who go out are likely to be intercepted by local units. As long as there is an organization willing to accept it, few students who go out from Qianshan to study related majors will come back.
"Ah, I understand. It doesn't matter. You can send someone to my side, the third branch of the Beijing Third Rolling Plant, and have a contact with the comrades in the technical department there. They will take you to complete the relevant design and test of this control system, and I can also help you." Gao Zhendong was very happy.
For comrades in the Technical Department of the Third Branch Factory, as long as Qianshan Aluminum Factory actively cooperates, it is actually not difficult. At least there is no problem in getting this matter done first.
Not to mention the aluminum factory, even the comrades in Qianshan were overjoyed. Chief Engineer Gao really helped, without any silence. "Thank you so much. Let's call the report to the department afterwards." The comrade from the aluminum factory said gratefully.
Gao Zhendong thought about it, turned his head to the deputy from Qianshan who came with him and said, "Leader, if this problem of education is not solved, the potential will be insufficient. I suggest that you choose a few teachers in Qianshan universities and send them to the capital to study hard. When you come back, you will have a lot of branches and leaves in Qianshan. I am quite good at talking in the 12th Ministry of Machinery, the computing institute and some related universities, and this matter can still be arranged."
I have a cold knowledge. The computer major at Qianshan University is an advantageous subject when it enters the 21st century. Of course, the reason for the introduction of talents here. Gao Zhendong simply helped Qianshan to lay a firmer foundation.
The comrades in Qianshan were overjoyed when they heard this. Team Leader Gao was so busy that he helped: "Team Leader Gao, thank you so much! On behalf of the people of Qianshan, I would like to thank you!" Team Leader Gao, maybe his martyrs' parents were really from Qianshan, otherwise why would they be so kind to us here.
After talking about this, the comrade of the aluminum factory brought up another idea: "General Engineer Gao, what he said just now is about reducing expenditure. In addition, we want to open source."
It is not that easy to open source. If there is still an object for reducing expenditure, opening source may not even be found. "Tell me what you think. You may have thought of it with me, hahaha." Gao Zhendong said with a smile.
This sentence "thinking together" even made the comrades here feel a sense of pride that "heroes see each other" and that being able to think together with Mr. Gao is also a big and big thing to be happy about. "Well, we just think that there is not only aluminum in this bauxite, but also other things. Can you find some useful things and extract them as by-products, otherwise it would be too wasteful." Gao Zhendong asked with interest: "What do you think is more suitable?"
This question asked the comrades from the aluminum factory, but they just didn't know what was suitable. In bauxite ore, what is more important than aluminum, and can it be easily extracted?
"We didn't think about this..."
Gao Zhendong smiled and said, "It's okay if I didn't think about it. I thought about it for you. Didn't I just say that we thought about it together? There is something very important. Although the content is small and it is difficult to extract, I think it is worth doing."
"What?" The comrades from the aluminum factory were inspiration.
Mr. Gao said that it is important, and that should be very important.
The most new ⊥小小小小小小小小小小小小小小小小小小小小小小小小小小小小小小小小小小小小小小�
Gao Zhendong laughed: "Gallium!"
"Gallium? This can indeed be extracted from bauxite, but the content is too low. Although it is very distinctive, it doesn't seem to make much sense now, right?"
The use of gallium has not been fully reflected at this time. This thing is very distinctive. In addition to mercury, the metal with the lowest melting point is really melted when it is held in the palm of the hand.
Although there are some technologies for extracting gallium from the electrolytic aluminum process, they did not do it at this time.
Gao Zhendong shook his head: "No, this thing is very important."
He didn't do some things, and the production of gallium is also a reason.
Since he knew that he was going to Qianshan for a business trip, he took this matter to heart. Qianshan Aluminum Factory, it is not correct to ask how to get gallium and form industrial production.
In fact, it is important or not, others don’t know, but since Chief Executive Gao said it is important, it is very important. Even if it is not, he has a way to become real.
"Mr. Gao, is it really so important? But our technology for extracting gallium is very limited and requires a lot of lime. Although we have stones everywhere here, the energy consumption is very high."
The chief engineer of the aluminum factory knows a little about the technology of electrolytic aluminum extracting gallium. After all, we learned one of the technologies of Russians and started to be used in the industrial production of gallium since 1957.
That is the lime milk method, which uses lime milk to treat the mother lime liquid produced by the Bayer method, separates the gallium and aluminum, and then extracts the enriched gallium from the separated solution.
However, this method has a big disadvantage, that is, it changes a lot of components in the circulating alkali liquid, and requires a large amount of lime to be caused before it can be returned to the production process of alumina. Although lime seems very common, it needs to be burned with limestone, so the energy consumption is not low.
Gao Zhendong knew very well that the rumored gallium on the Internet in his previous life came from the by-product of electrolytic aluminum. In fact, it was not very accurate. To be precise, gallium did not come from the step of electrolytic aluminum, but came from the bauxite used the Bayer method to process the bauxite into the mother liquor of alumina before electrolytic aluminum.
There are many ways to extract gallium from the Bayer method mother liquor. Gao Zhendong spent a lot of money to extract relevant materials from the system for this matter. Therefore, the comrades in the aluminum factory have little problem with him. And he happened to know that one of the methods, although not the best, is the best under the current technical conditions, and Qianshan has very good conditions. "Your concerns make sense, but we don't use the lime milk method to extract it. We use other methods, and one of them is very beneficial to you."
The comrades from Qianshan Aluminum Factory are now truly feeling how powerful the legendary Chief Engineer Gao is. In addition to the lime milk method, there are many ways, and they can also pick and choose.
(This chapter ends)