I make a popular science video and all the emperors learn from it!

[Continue to popularize the main uses of bauxite:]

[(5) Magnesia and bauxite clinker are used as raw materials, and appropriate binders are added to the overall barrel lining effect of pouring steel barrels. 】

[(6) Manufacture of bauxite cement, abrasive materials, various compounds that can be used to make aluminum in the ceramic industry and chemical industry.] 】

[One of the most important uses is: refining metal aluminum in the aluminum industry, as refractory materials and abrasive materials, and as a raw material for high-alumina cement. 】

[Ore is used for different purposes, and its quality requirements are different. 】

[Non-metallic uses of bauxite, mainly:]

[As raw materials for refractory materials, abrasive materials, chemicals and high-alumina cement. 】

[Although the proportion of bauxite in non-metallic use is small, it is very widely used. 】

[For example: chemical products such as sulfate, trihydrate and aluminum chloride can be used in papermaking, water purification, ceramics and petroleum refining; activated alumina can be used as catalysts, catalyst carriers and physical adsorbents such as decolorization, dehydration, degassing, deacidification and drying in the chemical, oil refining and pharmaceutical industries; aluminum chloride produced with r-A12O3 can be used for organic synthesis applications such as dyes, rubber, medicine and petroleum; 3%~5% A12O3 in glass composition can improve melting point, viscosity, Strength: Abrasive material is the main raw material of high-grade grinding wheel and polishing powder, and refractory material is an indispensable furnace building material in the industrial sector. 】

【......】

【Resource Features:】

In addition to the concentrated distribution of bauxite in China, large and medium-sized deposits are the majority. 】

[There are 31 large-scale deposits with reserves of more than 20 million tons, and their reserves account for 49% of the country's total reserves; there are 83 medium-sized deposits with reserves between 20 million ~ 5 million tons, and their reserves account for 37% of the country's total reserves, and the total of large and medium-sized deposits accounts for 86%. 】

[However, the quality of Huaxia bauxite is relatively poor, and the diaspore monohydrate ore with difficult processing and high energy consumption accounts for more than 98% of the country's total reserves. 】

[In the reserves, only 1.5% of the first-grade ore, 17% of the second-grade ore, 11.3% of the third-grade ore, 27.9% of the fourth-grade ore, 18% of the fifth-grade ore, 8.3% of the sixth-grade ore, 1.5% of the seventh-grade ore, and the rest are ores of unknown grade. 】

Another disadvantage of Huaxia bauxite is that there are not many bauxite deposits suitable for open mining. 】

[According to statistics, it only accounts for 34% of the country's total reserves.] 】

[Different from foreign lateritic bauxite, ancient weathered crust bauxite in China often symbiotic and associated with a variety of minerals. 】

[In the bauxite distribution area, the overlying rock layer often produces industrial coal seams and high-quality limestone. 】

[In the ore-bearing rock system, there are semi-soft clay, hard clay, iron ore and pyrite. 】

[Bauxite ore is also associated with gallium, vanadium, lithium, rare earth metals, niobium, tantalum, titanium, scandium and other useful elements. 】

[In some areas, the above-mentioned symbiotic minerals are often combined with bauxite to form deposits of industrial value, and gallium, vanadium, scandium, etc. in bauxite also have recovery value. 】

【......】

【Development Status:】

[According to the data of the United States Mining Bureau in 1996, the world's bauxite reserves are 23 billion tons, and the reserve base is 000 million tons. 】

[Among them, the countries with relatively rich bauxite resources are: Australia (reserve base of 7.9 billion tons), Guinea YA (reserve base of 5.9 billion tons), Baxi (reserve base of 2.9 billion tons), Yamaijia (reserve base of 2 billion tons), Argentina Sanguo (reserve base of 1.2 billion tons), Hun Ya 1i (reserve base of 900 million tons). 】

[The quantity and quality of bauxite in China are not as good as those of the above-mentioned countries. 】

【......】

After reading it, the ancients only felt that the huge China was so poor that it jingled.

Why are there not enough minerals!

Is this called a lot of land?

It is clear that the land area is too small and the natural resources are scarce!

It is necessary to expand the land area!

It's imminent!

"I can't bear it anymore, I don't want to live a day of picking, it's not enough!"

"Originally, look at it, we don't have enough to eat, and we don't even have enough things to use!"

"I can't stand it! I will take the lead in the charge and take these mines! For the benefit of future generations!"

"Don't worry, this official is a county order, and he has written a letter to His Majesty the current dynasty, advising him to go to sea and colonize for the country. "

"Okay, the county lord, you have finally done a job!"

“......"

Tang dynasty.

After reading it, Li Shimin was very uncomfortable.

The most productive crops are just abroad.

Even these minerals are more than foreign, and they are better!(Read violent novels, go to Feilu Novel Network!)

He's going to have self-doubt.

Was the Tang Dynasty, which ruled by itself, really prosperous?

Li Shimin shook his head slightly, it is not important to think about these now, it is the key to find a way to change the current situation.

Ming dynasty.

Zhu Yuanzhang clenched his teeth.

Only those who have experienced hard times know the embarrassment of not having enough things.

The more he looked at it, the more uncomfortable it became.

The people of the entire Ming Dynasty did not have enough food to eat, and even other resources were not enough!

It's miserable!

There is only one way to break the game.

Take these important natural resources for yourself in advance!. (King Money's) ........

In addition to gypsum and bauxite, mica is widely used in the building materials industry, fire protection industry, fire extinguishing agent, welding electrode, plastic, electrical insulation, papermaking, asphalt paper, rubber, pearlescent pigments and other chemical industries. 】

[In addition, mica is used for medicinal purposes: sweet in taste and flat in nature. 】[]

[Hurt by the wind evil and cold and fever, like the body sitting on a boat, dizzy, with the ability to eliminate the wind evil, enrich the five organs, increase fertility, make the eyes bright, long-term body light and dexterous, prolong life. 】

[Mica, also known as cloud beads, cloud flowers, cloud artery, cloud liquid, cloud sand, phosphorite, produced deep in the mountains. 】

【......】

Some rare earth elements, such as anti-and yurium, are used in most modern digital devices, such as smartphone circuits, and they are also used in magnets, wind turbines, and high demand in the market. 】

[Without these resources, it is likely to lead to the failure of high-tech development.] Thing]

【......】。