When Zhang Yi and the others returned to school, it was already afternoon.

After sending the four girls back to the dormitory, Zhang Yi did not go back to the dormitory with Chen Tao, but came to the laboratory, where he planned to supplement the last bit of sulfuric acid residue.

After tonight's experiment is completed, the plan of sulfuric acid residue is completely completed, the entire technical scheme has been matured, and he already has a complete set of technical solutions in his hands.

At this time, he remembered that he was very reckless to go to Wanbo Group to find Shao Weibo to cooperate, and the failure of that cooperation also made him soberly realize that he was still weak like an ant that could be trampled to death at any time, and he had no bargaining chips with others.

Zhang Yi was disliked, and it can't be said that it was Shao Weibo's fault, he was just very unhappy with Shao Weibo's high-minded attitude, and he was also disdainful of the technology he mentioned.

Now Zhang Yi has a technical plan on hand, if Shao Weibo is willing to cooperate with him at this time, Zhang Yi will not take care of him, making money together is about character trust, since Shao Weibo is so disdainful of him, why should he give money to others.

When Zhang Yi finished the experiment and left the laboratory, he ran into Liu Rui.

"Senior Brother Zhang, I came here to do the experiment so late, but I didn't find you for a day. Liu Rui's expression was a little serious, and he said without smiling.

"Is there anything Senior Brother Liu looking for me?" asked Zhang Yi.

"That's right, Professor Zhong has an emergency meeting tomorrow that I need you to attend, but I can't contact you today, I plan to go to your dormitory to have a look later, if I can't find you tomorrow, then the meeting can only be postponed, I didn't expect you to be in the laboratory. Although Liu Rui didn't have a smile on his face, he still spoke very politely.

A few days ago, Zhang Yi's performance at the meeting also shocked Liu Rui, and when he took Zhang Yi to visit the laboratory for the first time, seeing that Zhang Yi didn't understand anything, Liu Rui felt a little contemptuous.

But at that meeting, Zhang Yi not only made Li Mowen speechless, but also made Professor Zhong pay attention to the tungsten and molybdenum separation technology.

At the same time, it also gave him a new understanding of tungsten and molybdenum separation, and the topics that he had no clue about before also slowly saw the dawn.

Since then, his opinion of Zhang Yi has changed, this junior brother Zhang is by no means an ordinary undergraduate.

"I'm really sorry that I went out all day today and wasn't in school. Zhang Yi said embarrassedly.

But I also muttered in my heart, what kind of meeting is this? Without his participation, it still needs to be postponed, is it because the tungsten molybdenum separation method he said last time has been approved by Professor Zhong, and I don't know what is the matter with him this time.

"It's okay, it's not too late to inform you now, tomorrow morning at half past eight o'clock, Professor Zhong's office, remember to attend on time. Liu Rui told Zhang Yi the time and place of the meeting.

"Okay, I'll be there on time. Zhang Yi replied.

After the notice was issued, Liu Rui also left the laboratory, Zhang Yi's sulfuric acid residue experiment had also been completed, and there was no need to stay, so he went back to the dormitory directly.

......

Early the next morning.

Zhang Yi came to Professor Zhong's office after breakfast.

When Zhang Yi arrived, there were already many people sitting in the office, and Liu Rui was among them, and he didn't find Li Mowen and Xia Jingyan.

It seems that the people sitting there should be Professor Zhong's graduate students, and he knows a few of them, but he is not very familiar with the rest.

Zhang Yi sat down in the back row near the corner and waited quietly.

When he first entered the office, several of the graduate students also looked at him a few times, but their eyes swept over and did not stop, probably just wondering why this unknown student would join their research group.

After waiting for about twenty minutes, Professor Zhong hurriedly pushed open the office door and walked in.

When the students in the audience saw Professor Zhong coming in, they all stood up, and Zhang Yi saw that everyone was standing up, and he was still sitting very conspicuously, so he also stood up.

After Professor Zhong sat down on the chair, he waved his hand to let the student sit down, glanced at Zhang Yi in the corner, and immediately felt relieved.

"This meeting is mainly for you to do tungsten and molybdenum separation experiments in the past two days, and now let you make a summary report. Professor Zhong directly pointed out the content of the meeting.

Since the last time Zhang Yi said the technology of tungsten and molybdenum separation, Professor Zhong has also been thinking about it for a long time, but he is not very relieved, and there is a little problem with Professor Su, he simply organized a few of his graduate students to do a simple verification experiment with the scheme Zhang Yi said.

After the experimental results came out, Professor Zhong couldn't believe that the tungsten and molybdenum separation experiment, which had been a headache for him recently, had made a huge breakthrough after a few simple experimental schemes.

The purity required for tungsten metal is extremely high, and it is difficult to remove molybdenum ions that are very close to its properties in ordinary production processes.

Professor Zhong also arranged for graduate students to do experiments for a period of time, but all kinds of methods were exhausted, and the experimental results were not very ideal.

I didn't expect to pick up the baby.

In the past, his students did tungsten and molybdenum separation, and the removal rate of molybdenum was less than 60%, but now according to Zhang Yi's method for a few days, the removal rate of molybdenum has increased to more than 80%!

If we do systematic experiments step by step, this indicator will definitely go up, and it is possible to reach 90 percent.

Zhang Yi is simply a lucky star!

In addition to letting Zhang Yi come over to listen to the experimental report made by his graduate students today, and casually asking Zhang Yi to point out the problem, he also has more important things to do for Zhang Yi.

"Alright, you can get started. Professor Zhong saw that everyone was ready, and directly asked the students to start the report.

In 98, there was no projector in the office, and there was no PPT for student reports, but a small blackboard was hung on the wall, and a box of chalk was placed next to it, so it was convenient to write something on the blackboard when making a report.

Three students went up one after another, and they all introduced the experimental part they were responsible for in detail, including the experimental plan, equipment, process and final experimental results.

No matter how big or small, the students were also worried about what would go wrong in the experimental process, so they repeated the entire experimental process as much as possible.

Zhang Yi also nodded in the corner, it was not easy for Professor Zhong to achieve this level in such a short period of time.

With Zhang Yi's plan, there is basically no problem with the experiments done by graduate students, and they only need to adjust the writing steps and make the experiments more systematic, and the indicators will rise a lot.

After the student has finished debriefing.

Professor Zhong suddenly asked Zhang Yi, who was sitting in the corner, "Zhang Yi, how do you feel about this experiment?" Is there anything you need guidance?"

As soon as Professor Zhong said this, the graduate students sitting below were suddenly extremely surprised, they had never seen their supervisor, and they actually wanted a student to guide them.

And the student sitting in the corner looks younger than them, but looks like an ordinary undergraduate, Professor Zhong, what's wrong?

Liu Rui was calm in his heart, he had learned Zhang Yi's ability, and he also felt that Professor Zhong's performance was normal.