Rebirth 1975: Tore up the call-back order at the beginning

Xipo. Institute!

The ringing of the phone on the desk brought Zhou Yang's thoughts back to reality, he took a deep breath, and then picked up the phone!

As soon as he picked up the phone, the voice of the operator in the telecommunications room came from the opposite side: "Director, I just received a call from a comrade named Zhou Yawen. He said it was your father..."

"Come in!" Zhou Yang said directly.

"Yes!"

Soon, the call was transferred in.

"Xiao Yang?"

Hearing that it was indeed his father's voice on the phone, Zhou Yang immediately said, "Dad, it's me, why did you suddenly think of calling me?"

"Xiao Yang, we succeeded, we succeeded..."

Despite being separated by the phone line, Zhou Yang could still feel his father's excitement.

As expected, father and the others should have broken through the technology of potash fertilizer production.

Of course, the reason why my father and the others were able to make a breakthrough so quickly is directly related to the formulas that Zhou Yang wrote down before.

Zhou Yang knew that the current types of potash fertilizers produced in China include potassium chloride, potassium sulfate, potassium carbonate, etc., and potassium chloride is the main one.

The production of potassium chloride will use potassium halite, but potassium halite is generally a mixture of potassium chloride and sodium chloride. If you want to convert potassium halite into potassium chloride, you need to make potassium chloride and sodium chloride The main methods of dissociation into monomers are flotation, dissolution crystallization and dense media beneficiation.

Flotation is currently the most used method in China, but this method requires the use of a large amount of chemicals, usually including collectors, regulators, and foaming agents.

During the Chinese New Year, after reading his father's research materials, Zhou Yang discovered that they were in trouble with flotation agents.

Therefore, Zhou Yang directly wrote down the chemical formulas of the three potions, and inserted them into his father's research materials.

And my father returned to the northwest in a sudden hurry, apparently having discovered those formulas, and was anxious to go back to do experiments.

Today's phone call should be that the experiment was successful, and it was a good news for myself.

Zhou Yang smiled and said, "Speak slowly, why are you excited!"

"You boy, can I not be excited? We have finally broken through a major bottleneck in potash fertilizer production technology. This is not only crucial for the Chaerhan Salt Lake, but also for the country's agricultural production. This is great news!" Zhou Yawen said excitedly.

"Okay, okay, I should be excited, but you should take it easy!" Zhou Yang said.

"Well, thank you, you have a heart!" Zhou Yawen said.

Knowing what his father was talking about, Zhou Yang immediately smiled and said, "Look at what you said, I am your son, do you need to be so polite?"

"I am not thanking you as a father, but thanking you for thousands of farmers in China. With this technology, we can increase the production of potassium fertilizer by more than 5 times, and increase the production of tens of millions of kilograms of grain every year. , It is a great thing for the country and the people!" Zhou Yawen's voice was a little excited when he spoke, but he was more proud.

For such an important technology, we neither relied on the assistance of Big Brother, nor purchased it from abroad, and made a major breakthrough through self-development.

More importantly, the key formula for the breakthrough was provided by his own son, how could he not be proud as a father.

"Dad, you just need to know about it all the time, but don't tell it!" Zhou Yang reminded.

"Why, am I still planning to ask your superiors for credit?" Zhou Yawen said immediately.

"Father, your son and I are already busy like a spinning top. I don't want to be approached by people from the Ministry of Chemical Industry again. It's so easy to exhaust myself to death!" Zhou Yang said.

Zhou Yawen was silent for a moment when he heard this.

The youngest son's current life is indeed a bit too busy. Apart from the mysterious research institute, he also has to take care of a lot of things in the village. Comrade Lu Zhengjun and the medical school also need him.

If the people in the Ministry of Chemical Industry knew that the breakthrough in potash fertilizer production technology was also related to his son, based on Zhou Yawen's understanding of those people, he would definitely find a way to get him to the Ministry of Chemical Industry as a bully.

After thinking about it again and again, he sighed and said, "Then you have to think about it, once this matter is reported to the Ministry of Chemical Industry, at least it will be a first prize!"

"There's no need to think about it. If I don't show up, the award will be yours, and the fat will not flow to outsiders!"

"Hehe, then you are asking me to falsely claim your award, I can't do it..."

Before his father could finish speaking, Zhou Yang interrupted him directly, and said, "Why do we still have to distinguish between father and son?"

"But you were the one who researched those medicines. Isn't that the same as stealing your scientific research results? Even if you are a father and son, it's a bit unreasonable!"

However, at this moment, Zhou Yang said again: "Dad, I still have a method to separate sodium chloride and potassium chloride, and the purity of the obtained potassium chloride is above 99.9%, do you want to know?"

"Think, what method, tell me quickly?" Zhou Yawen said impatiently.

"Then if I say so, are you stealing my scientific research?" Zhou Yang asked back.

"This...we are father and son, my dear, what are we doing with each other!"

Hearing his father's words, Zhou Yang couldn't help laughing out loud!

"Why are you laughing, bastard, tell me, is there any other way you can separate sodium chloride and potassium chloride?"

"Dad, apart from the flotation method, you can also use the dissolution crystallization method and dense medium separation method to separate sodium chloride and potassium chloride!" Zhou Yang said.

"Two ways?"

"Well, the dissolution crystallization method is to use the different solubility of sodium chloride and potassium chloride in hot water and cold water. After heating the mother liquor of potassium chloride, it is mixed with potassium halite... After cooling, potassium chloride crystals are precipitated. After separation , washing and drying to get the product... If it is necessary to obtain high-quality potassium chloride for industrial use, it can be refined by recrystallization, and the purity of potassium chloride can reach 99.9%."

Then Zhou Yang continued: "The dense medium separation method is to use the difference in relative density between halite and halite in potassium halite mines, and add a medium with a density between halite and halite to separate them. , and the dense medium suspension can be prepared with pyrite powder and saturated brine."

"However, this method is suitable for the separation of large-grained, high-grade potassium halites. If the particle size is less than 1mm, this method cannot be used because of the non-selective agglomeration between particles due to internal adhesion."

After listening to the two methods Zhou Yang said, Zhou Yawen was stunned.

After nearly half a year of research, he knows how difficult the technology of potash fertilizer production is. It can be said that not only is there a shortage of potash mine resources in China, but the production technology is also far behind foreign countries.

The dissolution and crystallization method that my son just mentioned is a relatively common technology abroad. There are also units in China that are researching this technology, but the effect does not seem to be very good.

As for the heavy medium separation method, he has only heard of it, but it is far less detailed than what his son said.

Although it is still unclear whether the method his son said can really successfully separate sodium chloride and potassium chloride in potassium rock salt, but judging from his knowledge reserve and his understanding of his son, it should not be a big problem.

Immediately, Zhou Yawen immediately took out the paper and pen, and discussed the two methods in detail with Zhou Yang over the phone line.

He recorded the two methods mentioned by Zhou Yang in detail, and also marked the details that need attention.

At the same time, Zhou Yawen also specifically asked Zhou Yang about the production method of potassium sulfate, and took away the Mannheim furnace method and the comprehensive utilization method of alum stone from him.

Good guy, the father and son talked on the phone for more than two hours, and it didn't end until Chen Beixuan urged Zhou Yang to eat for the third time!

PS: Chapter 1 is delivered!