Huang Haojie watched the experimental seawater desalination equipment of the Desalination Research Institute on the west side of Shanmei City.

There are three huge cisterns, one for seawater, one for desalination, and the last for brine.

Huang Haojie brought a beaker from the side and filled a glass of water from the freshwater cistern.

"Is there a kettle?"

"Xiao Wang, go get a kettle." Yuan Quan instructed the assistant on the side.

In less than a few minutes, Xiao Wang came over with a kettle.

Fan Chengan hurriedly helped boil the water.

Huang Haojie came to the brine reservoir, which is the residue of seawater desalination, that is, a high-concentration sodium chloride (salt) solution, of course, there are not only sodium chloride, but also other compounds.

Seawater contains various salts, about 90 percent of which are sodium chloride, or table salt.

In addition, it also contains magnesium chloride, magnesium sulfate, magnesium carbonate and other salts containing potassium, iodine, sodium, bromine and other elements.

In fact, seawater is a veritable liquid mineral, with an average of 35.7 million tons of minerals per cubic kilometre of seawater, and 80% of the more than 100 elements known in the world can be found in seawater.

11 chemical components in seawater at concentrations greater than 1 mg/kg.

They include: 5 cations such as sodium, magnesium, calcium, potassium and strontium; 5 kinds of anions, including chlorine, sulfate, bicarbonate (including carbonate), bromine and fluorine; Boric acid molecule.

The total of these components accounts for more than 99.9% of all dissolved components in seawater.

Weathering products from rocks and volcanic eruptions carried into the sea by rivers are the main sources of the main dissolved components of seawater.

Since the appearance of the ocean on the surface of the blue star, in the long geological time, not only has it undergone changes on land and sea, but also the composition of the dissolved components in the seawater has evolved.

Although the salinity of seawater varies with sea and depth, there is a constant ratio between the content of the main dissolved components of seawater, which means that the composition of seawater is constant, and these components are said to be conserved.

……

Grunt...... The cup of fresh water that had just been taken out of the freshwater cistern boiled in a short time.

After waiting for a while, the boiling water cooled, Huang Haojie came over and said with a smile:

"Let me taste it today after the desalination of the sea."

After pouring themselves a glass, Yuan Quan and the others also poured themselves a glass.

After the first sip of my stomach, there was no taste, it was weaker than plain water, and I drank all the glasses of water.

"Yes, this water is pure water."

"Our technology is definitely the best in the world, and even if you drink this fresh water directly, it is not a big problem." Yuan Quan replied with a smile.

"We can't rest on our laurels, I just looked at the brine reservoir, and we have to make use of these brine." Huang Haojie proposed.

Yuan Quan was also very interested when he heard this, after all, whether it is a large number of elements or the overall reserves of trace elements in the seawater, it is very huge.

After all, the total amount of seawater in Blue Star is 1.32 billion cubic kilometers, and 1 cubic kilometer is equivalent to 1 billion cubic meters.

Gold, silver, copper, iron, tin, aluminum, etc., although the content is small, but if these elements are extracted from the ocean, 55 million tons of gold, 400 million tons of silver, 13.7 billion tons of iron, 4.1 billion tons of tin and 13.7 billion tons of aluminum can be obtained.

The amount of gold in seawater is between 0.01 and 0.04 milligrams per tonne of water.

That is to say, if a factory with an annual output of 40 billion cubic meters of fresh water extracts the elements in these seawaters, it can refine 400~1200 kilograms of gold, 9 tons of silver, 320 tons of iron, 90 tons of tin, and 320 tons of aluminum.

In addition, about 90 tons of yellow cakes can be extracted.

Among these things, silver, gold, and yellow cake are all of great significance.

Silver is an important raw material for room temperature superconductors of Galaxy Technology, gold is a hard currency, and yellow cakes can generate electricity and grow mushrooms.

Of course, Huang Haojie has no interest in growing mushrooms and the like, and the power generation efficiency of yellow cakes is also average, which is much worse than planting the sun.

His ideal high-level energy source is nuclear fusion power generation.

Of course, even if you don't use the yellow cake yourself, you can sell it to my rabbit.

"Mr. Huang, what elements are you going to extract?" Yuan Quan asked.

"Gold and silver, as well as yellow cake, these three are the primary extracts." Huang Haojie: Of course, these products can quickly return to their original costs.

"Of course, other compounds should not be wasted, especially potassium sulfate and the like, our fertilizer plant can be used as a raw material for production, and it can also be sold to other chemical plants in China."

Yuan Quan nodded and said: "There is no problem, we will set up a research and development team as soon as possible to tackle the extraction of these elements." ”

In fact, Huang Haojie did not mention that the Desalination Research Institute also has plans in this regard.

After all, once a desalination plant is put into operation, more than 40 billion cubic meters of fresh water will be produced every year.

And 96.5% of the seawater content, which means that 3.5% of the by-products are born.

This 3.5% by-product is about 1.45 billion tons, which is divided equally among everyone in the country, which is almost 1 ton per capita.

Among them, 1.126 billion tons of sodium chloride, 158 million tons of magnesium chloride, 71 million tons of magnesium sulfate, 52 million tons of calcium sulfate, 36 million tons of potassium sulfate, 4.35 million tons of calcium carbonate, magnesium bromide and other 4.35 million tons.

These are a lot of elements, plus a whole bunch of trace elements.

Huang Haojie now thinks of this large pile of sodium chloride and the like, he has a headache, the domestic production from 6000 ~ 70 million tons of sodium chloride a year, and the desalination plant produces up to 1.126 billion tons of sodium chloride a year.

If so many raw materials rush into the market, it can crush the world's sodium chloride market, and the problem is not worth the cost.

If you don't use it, you can only pile it up, which is another waste.

Similarly, the by-products of a large number of other elements are also in excess of demand, and they can only take some of them for their own use and reserve some of them.

It seems that it is necessary to consult with the Institute of Materials and let them study the use of these desalination by-products.

The first time I found out that the production volume was too large, it was also a trouble.

Think about it in the future, if desalination plants are rolled out in the northern seas, more by-products will be produced.

After inspecting the situation of the Seawater Desalination Research Institute, Huang Haojie took the little secretary and bodyguard to run the neutron star company non-stop.

The desalination film is produced by Neutron Star.

Huang Haojie looked at the production workshop where desalination films were being made, and asked Huang Yongdong on the side:

"What is the production situation of Yongdong desalination film?"

"Half a month ago, we completed the construction of the first production line, and a week ago we carried out trial production, and the annual output is expected to be about 500,000 square meters." Huang Yongdong hurriedly replied.

"Not bad! What are you going to set the ex-factory price at what?"

"8,000 Chinese yuan per square meter, of which 1,500 Chinese yuan is the production cost, and another 1,300 Chinese yuan is the patent fee for the research institute."

Huang Haojie nodded, the research institute of Galaxy Technology has a patent fee, if it is not invented by Huang Haojie, 20% of the profit will be given as a patent fee.

For example, the patent of seawater desalination film was invented by Yuan Quan's team, although the patent of the improved seawater desalination film, the patent contribution of the original Yuan Quan's team dropped to about 60%, of which Yuan Quan personally occupied 30% of the patent.

In other words, the first desalination plant put into use, and the seawater desalination film patent alone will bring Yuan Quan about 45 million yuan of pre-tax income every year.

After all, Huang Haojie can't do the thing of wanting the horses to run and not letting the horses eat grass, because doing so is tantamount to self-destruction of the Great Wall.

In Galaxy Technology, the income of researchers or engineers is very high, and the highest is Li Xiang, the director of the Materials Research Institute, whose income last year was 670 million yuan before tax.

This is mainly due to the fact that Li Xiang has a lot of invention patents in the Materials Research Institute, although it is not a revolutionary achievement, but it can't bear a large number, so his annual income is very high.