Shi Tou really went back to his hometown to find a big investor who could invest.

But he returned soon after, bringing only a dozen laborers, and it seemed that no one had invested in him.

This is normal, Chief Anba didn't ask why, and Shi Tou didn't say anything.

However, since this incident, Shi Tou has obviously gotten closer to Wang Jie, which is also normal, and they are originally friends. Chief Anba smiled, he had a dream of having a salt farm.

When the cement plant in Budai Town was officially put into operation, the people of the Hantang Group decided that it was now possible to start processing potassium chlorate. The reason is simple, it can share a power source with the bag cement plant, and of course, they can stagger the peak of electricity consumption at any time.

The production method of potassium chlorate is mainly electrolysis. The electrolysis method is mainly divided into two types: one-step method and two-step method.

The one-step method is to directly produce potassium chlorate by electrolysis of potassium chloride solution; The two-step rule is to electrolyze sodium oxide solution to prepare sodium chlorate, and then metathesis with potassium chloride to prepare potassium chlorate.

Both methods have their advantages and disadvantages. The two-step method is a bit of a hassle, but it's highly productive.

The first choice of Hantang Group is the one-step method. This is because of its advantages and it is more suitable for their temporary use. It is clear that the one-step method has the greatest advantages of short production processes, less equipment required, and fewer production personnel.

In addition, the explosive package they produced last time using the real yàn room method has been verified by the joint military exercise of the Ming and indigenous security forces, and the fire pulling device processed from potassium chlorate is very good. Work on the wooden-handled grenades can also begin.

The Budai Salt Farm does not produce potassium salts, but the potassium salts are in the bitter brine left after drying the salt.

Originally, there was more potash in Qinghai, but if the people of the Hantang Group wanted to use it, it would be a long time later. Just let them wait there first. Besides, Mingda 6 was originally a naturally potash-deficient area, but the world's major potash mines are also in the data.

In advance, the manager of the security field has done the site selection work. A reasonable location for the plant should be near the brine well, but the brine resources here are not too abundant. This is related to the geological formation here, the beach of Budai Town has not been formed for a long time due to accumulation, and there is no time to form relatively large brine wells. The director of the field had no choice but to arrange it with the power source and heat source. Let's be close to the Budai Cement Factory.

Because this was the only way to do so, Mr. Yamba had no choice but to decide to directly use the cold decomposition method to extract potassium chloride. The lower the yield, the lower.

This method is very simple, at room temperature, first concentrate the bitter brine or brine extracted from the brine well after drying salt, and then precipitate them to cool and recrystallize, use the different solubility of potassium chloride and sodium chloride and magnesium sulfate to obtain potassium chloride with a small particle size, use the gravity static method, or use a centrifuge to separate potassium chloride, and then wash and dry to obtain a product with a potassium chloride content of 9o%, and the fineness is less than 2oo mesh.

Of course, this is only theoretical, and the key to success lies in the temperature control technology. Without even thinking about it, the director of the field directly pumped the groundwater and used it to control the temperature together with the waste heat provided by the boiler of the bag cement plant.

These arrangements have been deduced before the crossing, and there is no problem with the actual installation.

After the construction of the potassium chlorate plant was completed, Shi Tou and others had another job, using a wooden barrel water truck converted from a two-wheeled vehicle to transport bitter brine to the Budai cement factory five miles away. The bitter brine was taken from the brine pool of the salt works.

Shi Tou has a subordinate named Ergou, less than 20 years old, who is relatively clever and has some kinship with Shi Tou.

One afternoon in June, the two of them stood by a large cement pond and watched as several other people scooped bitter brine into the barrels on the waterwheel with long-handled wooden spoons.

The bitter brine in the pool had been drying for many days, and its color was getting darker and yellower, and it was glowing with dark yellow foam as the wooden spoon was scooped.

The air was filled with a bitter, salty smell.

Ergou said: "Uncle, you said that they let us send brine every day, when is it a leader?" ”

"Life never stops, work doesn't stop."

Ergou said, "Uncle, what are they doing with all that bitter salt?" Isn't it fake salt? ”

"That's not bitter salt. It's a greening holiday. It can be used as a green acid fake or a variety of chemical fertilizers, and it is also divided into special for rice fields and sugarcane fields. ”

Ergou said, "Uncle, you know so much. ”

Shi Tou sighed and said: "It's not that Uncle Wei knows more, it's that Technician Yang Jianguo knows more, but it's a pity that he only said one sentence, and if he says more, I'll learn more......"

Ergou bowed his head and said nothing, he looked hard at the dark yellow bitter brine...... That's still bitter brine.

After filling the water truck, this group of people, one person at a time, pushed the water wheel to the Budai cement factory.

The extraordinarily tall kiln body of the cement plant has become a landmark construction here, far more than the shock of the big chimney in the original sulfuric acid plant. In particular, the smoke that had been rolling day and night turned into dragons, making various poses in the air.

In fact, the potassium chlorate plant has only two workshops, one of which produces potassium chloride. One electrolytic potassium chloride produces potassium chlorate. The former workshop can be entered, and the latter must shout at the door.

During the construction, the people of Hantang Group had already considered the dust pollution problem of the bag cement plant, so this small factory was built in the leeward place, with a pure wood plank structure and a certain amount of dust removal equipment.

The group pushed the water wheel directly to the factory.

Technician Yang Jianguo came over lazily and said, "Pour it into the carnallite pool." ”

The crowd pushed the cart directly to a cement pool, and when they saw that it was empty, they pulled the plug from the barrel of the waterwheel and poured the bitter brine water into the pool.

Then they just go back and reload, and they need to be three times in a row to meet the requirements.

Technician Yang Jianguo lazily opened the valve of the waste heat pipeline and began to heat the carnallite pool, so that the bitter brine could be added to precipitate the carnallite.

The waste heat pipe is supplemented with ceramic pipes, located at the bottom of the pool, and buried with cement.

Yang Jianguo technician lazily came to the potash pool, he saw that the carnallite in it had been completely dissolved, so he closed the valve of waste heat, measured the temperature of the water, it is now sixty-five degrees, a little high, and then he went to open the valve of the groundwater, let the groundwater cool the solution.

Underground water pipes are buried in the walls of potash ponds.

Technician Yang Jianguo sweated all over after doing these moves. The dog weather in Taiwan is too hot. He cursed in his heart. He took out his IPD from the drying oven and walked out of the workshop door.

In the shade of a large tree, he had already set up a chaise longue there. He sat down lazily and played a single-player game.

When the Ming laborers pushed him again, he waved his hand, and those people naturally knew what to do.

When the last batch of bitter brine arrived, technician Yang Jianguo stood up lazily, and he was about to command the Ming people to work.

He squatted down and observed the precipitate at the bottom of the potash pond, and now there were mostly small granular potassium chloride crystals, and occasionally large sodium chloride crystals, but compared to the last few times, it was much better now. This shows that the bitter brine pond in the salt field has a good effect of precipitating sodium chloride from the bitter brine after the evaporation of the sun.

He measured the temperature of the water, and now that it had dropped to about 4o degrees, he decided to wait a little longer and let the Ming laborers go to the carnallite pool to get carnallite.

The Ming people took fishing nets and circled around the carnallite pool. From time to time, take the carnallite and put it into the preparation tank.

"Don't fall off." Technician Yang Jianguo shouted lazily.

Shi Tou replied with a smile on his face: "How can it, how can it!" ”

The more Ergou looked at the so-called carnallite, the more he felt that he had seen it somewhere.

He whispered, "Uncle, I seem to have seen it somewhere." ”

Shi Tou also whispered: "It's normal, there is this thing in the bitter brine well in our hometown." ”

"Then we brought it, do they want it?"

"Ahh Those people can exchange struvite for salt with them, why can't we?! If you can't get it, you can change their cement! ”

The whole workshop was smoky, and the bitter taste was a little choking. Technician Yang Jianguo slipped to the door quietly, and just as he lit a cigarette, Shi Tou walked over with a smile on his face.

Want to rub my cigarette again? Technician Yang Jianguo immediately lit the cigarette and deliberately looked into the distance with his eyes.

Shi Tou came over and nodded and said, "Technician Yang, I'll tell you something......

"Why are you old, I'm not as old as you...... Say something quickly. ”

"This carnallite, we have ...... in our hometown"

"Where is your hometown?"

"Haizhou, Zhejiang."

Zhejiang...... Haven't heard of carnallite mines? ”

Yang Jianguo, a technician, took out the IPD and checked it, and there was indeed no information on carnallite mines, but found out that Zhejiang was one of the major potash importing provinces in the world.

"Xiao Lao'er's hometown does have it, but can it be exchanged for salt after it is shipped......"

"Absolutely."

Technician Yang Jianguo also figured it out, the information in his hand is all the world's large-scale and high-grade minerals, and there are some small ones, but they are completely enough for Hantang Group to open and use resource points.

That's right, when the time comes, I'll put this one online.

"I've promised you, what's the matter?"

Technician Yang Jianguo asked curiously when he saw Shi Tou's strange expression.

"Can that be exchanged for water...... Mud? ”

"Ah, it's hard to say, cement is a high-tech product, very expensive. You're going to have to ask Mr. Anba about this. ”

Technician Yang Jianguo smiled in his heart.

"Yes, yes."

Technician Yang Jianguo watched Shi Tou walk to another workshop, went to find the head of the security field, and returned to his own workshop to rearrange the Ming laborers to work.

The temperature of the solution in the potash pond is now 35 degrees. Technician Yang Jianguo turned on the pumping machine to pump the solution away. Now, in that solution, the largest solute mass fraction is magnesium sulfate solution.

The magnesium sulphate solution will not be discarded, it will be stored in the outside storage tank, and it will be disposed of when it is free. Magnesium sulfate can be used as fertilizer, as well as leather, papermaking, and even a girl personally instructed Yang Jianguo technician to make some bath salts. That thing keeps the skin white.

When the water is drained, the bottom of the pool reveals a white layer of potassium chloride, with occasional large particles of sodium chloride.

Technician Yang Jianguo closed the valve of the groundwater, opened the valve of the waste heat pipe, and began to dry it. When it is dried, it is easy to sift.

Technician Yang Jianguo knew that the process would take about two hours, so he said to the Ming laborers who were soaked wet: "Everyone go out to cool off for a while, and don't go far." ”

Akito laborers Nono.

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