Chapter Nineteen Solution

  "Feasible, the nutrient content ratio is nitrogen, phosphorus pentoxide, potassium oxide nineteen to nineteen to nineteen if I didn't get it wrong." Fu Xin answered straightforwardly without beating around the bush.

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

  "With a lower nitrogen content... let me think..." After finishing, Fu Xin rubbed his temples, this question, he really couldn't remember very clearly, in his previous life, he had only slightly touched on the fertilizer industry and wasn't very familiar with it.

  After some thought, suddenly, Fu Xin patted his forehead and said: "Oh... right! Sorry, I made a mistake. The notebook records that there are four types of ammonium phosphate fertilizer, namely sulfuric acid potassium type, high nitrogen type, balanced type, and high nitrogen and potassium type. There is no low nitrogen type, sorry!"

  "What exactly do you remember clearly?" Fu Zhenbang had had enough of Fu Xin's nagging tone and said impatiently.

  "I remember it was a balanced type, but the balance can definitely solve the current problem!" Fu Zhenbang said with embarrassment, actually, as an academician in his previous life, he could only come here to talk about it roughly now, and it's really suffocating!

  "Then hurry up and tell me how to make balanced nitrogen phosphorus fertilizer, don't waste my time!" This was also Fu Zhenbang, Fu Xin's old man. If it were someone else, they wouldn't dare speak like this. In this era, who wasn't treating people with real knowledge as their masters?

  "Alright, I'm sure this preparation method is correct. First, use 58% to 60% concentration of nitric acid in the acid decomposition tank to decompose phosphate ore. The acid decomposition liquid goes through sedimentation and washing drums to remove insoluble substances, then in a jacketed cooling crystallizer, ammonia water vaporization or saltwater is used as a freezing medium..."

  Fu Xin hadn't finished speaking when he was interrupted by Fu Zhenbang, who asked: "Wait a minute, is the salt water you're talking about edible salt water or industrial salt water?"

  This edible salt refers to the salt obtained from seawater, underground rock (mineral) salt deposits, and natural brine water, with sodium chloride as its main component, after processing, excluding low-sodium salt.

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

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

  The main products of basic chemical industry, such as hydrochloric acid, caustic soda, pure alkali, ammonium chloride and chlorine, are mainly produced from industrial salt. In the organic synthesis industry, a large amount of sodium chloride is needed.

  In addition, industrial salt is used in the manufacture of soap, ceramics, glass production, daily chemical industry, petroleum drilling, well workover fluids, completion fluids, petroleum chemical dehydration fluids, early strength agents for construction, coagulants for paint production, latex coagulants for rubber industry, additives for papermaking and deinking of waste paper, inorganic chemicals and desulfurization agents for the chemical industry, coagulants for sodium alginate, prevention and treatment of rotting wheat, apples, cabbage, etc., food preservatives, production of metallic sodium and other sodium compounds, steel heat treatment media, etc.

  In addition, industrial salt also has a wide range of uses in water treatment, highway snow melting, refrigeration and cold storage.

  There is also a saying 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 work, but the cost is too high, not afraid to lose money can use!"

  Fu Xin was still trying to recall the preparation process of nitrophosphate fertilizer and hadn't noticed that Fu Zhenbang was asking him, so he sarcastically said, "Now you've really embarrassed Fu Zhenbang."

  "Alright, I get it, you've grown up too, daring to scold your old man." Fu Zhenbang said unhappily.

  Fu Zhenbang said, Fu Xincan suddenly realized what he had just done, and immediately became a little timid, saying: "Uh... let's continue with the previous one. Using ammonia water vaporization or industrial salt water as a refrigerant, cool the acid solution to minus five degrees Celsius, at which point a large amount of crystals will precipitate out.

  Then, the crystals were separated by vacuum filtration, washed with cold nitric acid, and sent to the calcium nitrate conversion workshop. The mother liquor was neutralized with ammonia, and the neutralization liquid and the nitric acid solution from the calcium nitrate conversion workshop were simultaneously entered into a vacuum evaporator for concentration. After concentrating to a certain extent, granulation could be carried out to obtain nitrophosphate fertilizer!" Fu Xin feared that someone would interrupt him again, and with the recent incident, he managed to blurt out this long passage in one breath.

  After finishing speaking, the scene suddenly became a bit quiet. Fu Xin said strangely: "Uh... everyone stop staring at me, think about it, are there any other questions?"

  "Did you get it, Little Dong?" Jiang Haiyang asked the young man who was writing quickly with a pen. This young man was the recorder of this technical breakthrough, and he wrote very fast.

  "Hmm, spoke too quickly, but I should have remembered, Director, do you need to review it again?" There were several directors surrounding him, although only one was the real deal, but the deputies couldn't be offended either, so Little Dong asked the crowd.

  "Ah, let this little rascal take a look!"

  "Alright." After finishing speaking, Little Dong immediately put away his pen and handed the notebook to Fu Xin's hand, saying: "Fu..." For a moment, he didn't know what to call Fu Xin.

  "Just call me Xiao Fu, I'm younger than you and I'm just here to help out, no official position." Fu Xin said with a warm smile. In his heart, he couldn't help but admire Xiao Dong's writing speed.

  "Oh, okay, Xiao Fu, take a look and see if there's anything wrong. If so, help me fix it, okay?" Xiaodong also didn't pretend to be polite and directly called Fuxin "Xiao Fu".

  Fu Xin flipped open the notebook, and saw a beautiful piece of running script, jumping off the page. He couldn't help but exclaim: "What great handwriting! I think even Wang Xizhi's handwriting is only about as good as this!"

  Wang Xizhi is Wang Rongjun, "Preface to the Orchid Pavilion" has been heard, it was written by him, and the author will not elaborate, after all, the author writes industrial articles, not appraisal articles.

  "Haha!" Little Dong didn't say much, his words and writing speed were indeed worth being proud of. His cursive handwriting was beautiful, everyone in the factory knew this, which had long made him very calm.

  "Hmm, let me take a look." The words were written very well, and Fu Xin's mood also became more pleasant as he read the beautiful handwriting. So, it didn't take long for Fu Xin to finish reading all the contents, then said: "Very good, no problem, now we should be able to go try it out!"

  Upon hearing this, Jiang Haiyang immediately straightened his body and took a deep breath. With a serious expression, he turned to Fu Zhenbang beside him and said: "Old Fu, I don't understand these things either, you make the decision!"

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