"It's feasible, if I remember correctly, the nutrient content ratio is nitrogen, phosphorus pentoxide, and potassium oxide 19 to 19." Fu Xin didn't make any bends or sell anything, and replied bluntly.

"What about the ratio with lower nitrogen content?" Fu Zhenbang touched the corners of his mouth and asked thoughtfully.

"The nitrogen content is low...... Let me think about it......" After speaking, Fu Xin rubbed his temples, he really couldn't remember this question clearly, in his previous life, he had only been in contact with the fertilizer industry a little, and he didn't know much about it.

After thinking about it, suddenly, Fu Xin patted his head and said, "Oh...... Right! I'm sorry, I remembered wrong, there should be four kinds of nitrate and phosphorus fertilizers recorded in the notebook, namely potassium sulfate type, high nitrogen type, balance, high nitrogen and high potassium type, there is no low nitrogen type, sorry! ”

"And what do you remember?" Fu Zhenbang was really fed up with Fu Xin's squeezing toothpaste-like statement, and said impatiently.

"I remember very well that it was the balanced type, but the balanced type will definitely solve the current problem!" Fu Zhenbang said embarrassedly, really, as an academician in his previous life, he can only come here to talk about it, he is really aggrieved!

"Then tell me how to make balanced phosphorus nitrate fertilizer, don't make these useless!" This is also Fu Zhenbang, it is Fu Xin's old son, if he is replaced by someone else, he will never dare to say that, people in this period, which one does not treat a truly knowledgeable person as an uncle!

"Well, I'm sure that I must be right in this preparation method, first use 58%~60% concentration of nitric acid to decompose phosphate rock in the acid hydrolysis tank, and the acid lysate removes the acid insoluble matter through the precipitation tank and washing drum, and then in the wall cooling crystallizer, use ammonia vaporization or brine as the freezing medium......"

Before Fu Xin finished speaking, he was interrupted by Fu Zhenbang at this time, only to hear him ask: "Wait, is this brine you are talking about edible brine or industrial brine water?" ”

This edible salt refers to the processed edible salt with sodium chloride as the main ingredient obtained from seawater, underground rock (mineral) salt sediments, and natural brine (salt) water, excluding low-sodium salt.

The main component of edible salt is sodium chloride, which also contains a small amount of water and impurities, as well as other elements such as iron, phosphorus and iodine.

Industrial salt, in fact, is mainly "sodium chloride", which has a wide range of industrial uses and is one of the most basic raw materials in the chemical industry, and is known as the "mother of the chemical industry".

The main products of the basic chemical industry, such as hydrochloric acid, caustic soda, soda ash, ammonium chloride, chlorine, etc., are mainly produced with industrial salt as raw materials. Large quantities of sodium chloride are required in the organic synthesis industry.

In addition, industrial salt is also used in soap manufacturing, ceramics, glass production, daily chemicals, oil drilling, drilling fluids, completion fluids, petrochemical dehydration fluids, early strength agents in the construction industry, coagulants for the production of coatings, latex coagulants in the rubber industry, additives in the paper industry and waste paper deinking, inorganic chemical raw materials and sulfate removers in the chemical industry, coagulants for sodium alginate, prevention and control of wheat, apples, cabbage and other rot and food preservatives, preparation of sodium metal and other sodium compounds, steel heat treatment media, etc.

In addition, industrial salt also has a wide range of uses in water treatment, road snow removal, refrigeration and refrigeration.

It is also said that industrial salt is sulfate and nitrate, and industrial salt cannot be eaten, otherwise it will cause food poisoning.

"It's industrial salt, how can it be edible salt, if you use edible salt, it will be, but the cost is very high, and you can use it without fear of death!"

Fu Xin was still trying to recall the preparation process of phosphate nitrate fertilizer, and he didn't notice that Fu Zhenbang was asking him, because he sarcastically said to the other party that Fu Zhenbang would be ashamed of himself.

"Okay, I understand, you have grown up, dare to say that you are a child." Fu Zhenbang said unhappily.

As soon as Fu Zhenbang said this, Fu Xin realized what he had just done, and suddenly, Fu Xin became a little cringe, and said embarrassedly: "Eh...... Let me continue with the previous statement, using ammonia gasification or industrial brine as the freezing medium to cool the acid lysate to minus 5 degrees Celsius, at which time a large number of crystals will be precipitated.

Then, the crystallization is separated by vacuum filtration, washed with cold nitric acid, and sent to the calcium nitrate conversion section, the mother liquor is neutralized with ammonia, and the nitric acid solution from the feed liquid and the calcium nitrate conversion section is neutralized, and the nitrogen acid solution from the vacuum evaporator is concentrated and concentrated to a certain extent for granulation to obtain phosphorus nitrate fertilizer! Fu Xin was afraid that someone would interrupt him again, and the scene that had just happened made him finish this large paragraph in one breath.

After finishing speaking, the scene suddenly became a little quiet, and Fu Xin said strangely: "Eh...... Don't look at me, think about it, do you have any questions? ”

"Xiao Dong, have you remembered?" Jiang Haiyang asked the young man who was writing faster than he was holding to the side. This young man is the recorder of this technical breakthrough, and he writes very quickly.

"Well, it's too fast, but I should remember it all, factory director, do you need to review it again?" There are several factory directors around this, although there is only one positive one, but the deputy can't be offended, Xiao Dong also asked the crowd.

Fu Zhenbang immediately replied: "Well, you can show this bastard boy!" ”

"Okay." After speaking, Xiao Dong immediately put away the pen, handed the notebook to Fu Xin's hand, and said: "Fu ......" For a while, he didn't know what to call Fu Xin.

"Just call me Xiaofu, I'm younger than you, and I'm just here to help, I don't have a position." Fu Xin smiled kindly. I can't help but sigh at Xiao Dong's writing speed in my heart.

"Oh, okay, Xiaofu, you see if there's anything wrong, if there is, help me fix it, okay?" Xiao Dong was not hypocritical, and directly called Fu Xin "Xiao Fu".

Fu Xin opened the notebook and saw a beautiful book on the paper, and couldn't help but sigh: "Good words!" I think Wang Youjun's words are similar to this! ”

Wang Youjun is Wang Xizhi, have you heard of "Lanting Collection Preface", it was written by him, the author will not repeat it, after all, the author is not writing treasure literature, but industrial literature.

"Huh!" Xiao Dong didn't say much, his handwriting, as well as his writing speed, is indeed worthy of his pride, he writes beautifully, and the people in the factory don't know, which has long made him very calm.

"Well, I'll take a look first." The handwriting is very good, and Fu Xin's mood is also happy with the beauty of the handwriting, so it didn't take long for Fu Xin to read all the recorded contents, and then said: "Very good, there is no problem, now you should be able to go to the experiment!" ”

Hearing this, Jiang Haiyang immediately straightened up and took a deep breath, and said to Fu Zhenbang on the side seriously: "Lao Fu, I don't understand any of this, you, make a decision!" ”

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