One is the distillation method, which evaporates the water and leaves the salt; there is also the freezing method, which freezes seawater and freezes it. When the liquid fresh water turns into solid ice, the salt is separated out. Both methods have difficulties to overcome.
The disadvantages are that it consumes a lot of energy, and there was no way to make such an instrument in ancient times.
Fang Chen used the third method to directly make refined salt from sea salt!
Raising and lowering the temperature causes the salt to crystallize, and impurities will also come out together. Sun-drying salt can extract table salt from sea water.
The extraction method is to build a large number of salt fields on the beach, introduce seawater into the salt fields on the beach, use sunlight and wind to gradually evaporate the water, slowly concentrate it, and crystallize the salt. Extract potassium chloride from the salt brine and dry the salt.
The remaining brine contains potassium chloride, magnesium chloride, and a small amount of sodium chloride.
Next, create molds for decomposing different mixtures of table salt. Analyze the solubility of three different substances, separate these three substances, dissolve potassium chloride and magnesium chloride, and what is left is sodium chloride. What is purified is sodium chloride.
Edible salt.
Table salt can be further crystallized and recrystallized to obtain refined salt!
Purifying and dissolving different substances requires good temperature control, a large number of factories, etc.
Fang Chen can make some thermometers to monitor the temperature at any time.
With the knowledge Fang Chen has learned, he can make two kinds of thermometers, bimetal thermometers.
Fix the bronze slats and lead slats together, coil them into a spiral and fix it on one end. Get a pointer on the other end. Use a mixture of ice and water to make zero degrees, boiling water to make 100 degrees, and then divide the scales equally.
Fang Chen wrote down the method of making table salt in great detail. Every detail is written in place, and as long as you follow it step by step, there won't be any problems.
One ton of seawater can produce 30 kilograms of salt, and the ratio is 1.5%.
But the sea water is endless!
Lu Yang and Ye Fan were both from the same family, so Fang Chen told them this extremely important method.
As long as this method is successful, the Dayan Dynasty will have endless salt, and it will be countless times more than the salt of the Daqian Dynasty, and it can be exported to any country.
And the economic policy of the salt monopoly of the Daqian Dynasty will be completely broken.
When Lu Yang and Ye Fan saw the thousands of words written eloquently, they were completely shocked.
Both of them were extremely shocked, extremely shocked.
"Master Fang, you are really a god. You can think of this method of making salt! It's really amazing! It's amazing!"
"Master Fang, I admire you so much. As long as this method is successful, all problems will be solved! You don't have to look at the face of the Daqian Dynasty anymore!"
Fang Chen smiled lightly: "Now that the method has been figured out, the next step is to make salt."
Lu Yang thought for a while and quickly came up with an idea: "There are many remote environments in the sea. We can find a remote beach and hire some trustworthy people."
Fang Chen already has a detailed plan.
"The salt in our Yan Dynasty can last for three months. Therefore, we need to produce a large amount of salt in three months and transport it to all parts of the country. My method will definitely succeed!"
"We don't need to conduct experiments. According to my method, we need to build a large-scale salt production project at one time, and this salt production method must be in our hands and must not be leaked!"
Lu Yang felt that it would be difficult to implement this matter.
"Master Fang, if you invest too much at one time, others will definitely notice it. Although the method of making salt written by Master Fang is very complicated, smart people will master it after research.
."
"It would be bad if this method was leaked. What's more, this is a port and there are foreign businessmen everywhere. It's a mixed bag, so it's easy to be exposed!"
Ye Fan said: "General Lu is right. If we control the salt, we control endless wealth. As long as the sea does not dry up, our wealth will continue to flow and never dry up!"
Fang Chen already had a way to deal with it.
"If we place the salt production project near the port, others will definitely discover it and steal our method."
"Actually, it is not difficult to solve this problem. General Lu, we can find some deserted islands nearby, islands suitable for human habitation. We will put all the workers and factories on the islands and send a large number of people to blockade the islands. News
It must not be leaked, and then we can start making a steady stream of salt."
Fang Chen's plan made both Lu Yang and Ye Fan's eyes brighten.
Both agree!
As long as the island is sealed off and the people on the island are monitored, the methods and secrets of salt production must not be leaked.
Lu Yang quickly thought of some places: "Master Fang, it is not difficult to find these islands. When we go to other countries in the Yan Dynasty, we will pass by more than a dozen islands on the way to the water. These islands are our transit stations.
Sometimes, ships will dock near the islands and go up to rest."
"Of course, these islands are the private property of our Great Yan Dynasty. People from other countries cannot touch them. If you really want to go up there and rest, you need to pay a certain fee."
Soon, Lu Yang took out a map and drew seventeen points on it, a total of seventeen islands. These were all small islands and did not occupy a large area.
However, after seeing these islands, Fang Chen judged that all seventeen islands could be used.
Currently, we want to find an island closest to Nanhai City.
It takes two days of sailing to get there.
At this time, Ye Fan suggested: "In fact, our salt workers can let some life prisoners and some death row prisoners work and give them a chance to be reborn. In this way, we can ensure that all workers live on the island all year round.
It’s for our use and you don’t have to worry about anything being leaked.”
Ye Fan’s suggestion is good.
However, building factories and accommodation on the island is also a big project!
Professional workers are needed.
There is no shortage of such talents in the imperial court. As long as you give an order, all major departments of the imperial court will fully cooperate!
Everything must be done step by step. According to the plan of the three people, everything must be implemented within twenty days!
As long as there are enough manpower and enough materials, it can definitely be done.
After the three people discussed all the details, it was already early in the morning.
Everyone went to rest for a few hours, and early the next morning, the three of them started taking action.
General Lu went to the government offices in nearby cities and sent them letters respectively, asking for a large number of prisoners.
Because this is a port leading to various countries, it is a mixed bag of fish and dragons, and the crime rate is extremely high. There are tens of thousands of serious criminals in more than a dozen nearby cities!
All these people were taken away by General Lu's men!
As long as you take His Majesty's token, Fang Chen, no one dares to stop him or ask any questions, and they will all hand him over obediently.
Of course, this also reduces the burden on major cities.
Through his connections, Ye Fan contacted local officials from the Ministry of Industry of the Imperial Court and sent a large number of people to the designated islands to build housing!
All supplies are shipped to the nearest island in batches.
There are many merchant ships coming and going from the port every day, and no one doubts what Fang Chen is doing.
Everything is done in secret!
Five days later, Fang Chen appeared on the mysterious island.
He stood on the beach, feeling the oncoming sea breeze, and was in a good mood.
After the first batch of salt is produced, Fang Chen wants to give Luo Ningxin a big surprise!