Summary: ????????????????????????????????????: ???????????????????????????? ?????????? ???? ?????? ????????????? ???????????????? ???????????????????????????????????????????????????....
????????????????
Silicon, the second most abundant element in the Earth’s crust (accounting for approximately 27.7% of its total mass), is a cornerstone of modern science and technology. Its related materials and technologies have profoundly shaped the evolutionary trajectory of human civilization.
??????????????????????????????????? ????????????????????????????????????????????????????????????? ???? ????? ??????? ???????????????? ???????????????????????????????????????????????????????? ???????????????????????? ?????????????? ??????????????? ???????? organosilicon ???????? ????????????????????????????????????????????? ?????????????????????? ????????????????? ?????????????????????????????????? ???????????????? “????????????” ?????????????????????????????????????????????????????????? ????????????????????????????????????????????????????????
???????????????????????????????
???????????????????????????????????????????????? ???????????????????????????????????? ??????????????????????????????????????? (SiO?) ?????????? ??????????????????????????????? ?????????????????????????????????????????? ? ??????:
?????????? (SiO?)
??????????????????????????????????????????????????????????????????? ??????????????????????????????????????? (SiO?) ??????????????????????????????????????????????????????????????
?????????????????
- ????????????: ?????????????? ???????????????????????? ????????????????????????????????
- ?????????????????????: ????????????????????????????????????????? ??????????????????????????????????? ???????????????????????????????????????? 99% ??????????????????????? ???????????????????????????????????????????????????????????
Quartzite
- ????????????: ??????????????????????????? ???????????????????????????????????
- Mineralogical Characteristics: Formed by the recrystallization of quartz sandstone through regional metamorphism. SiO? content generally ranges between 95%–99% with massive reserves. It serves as the primary raw material for industries such as glass, ceramics, and metallurgy.
2. ???????????????????
???????????????????????????????????????????????????????????????????????????????????????????? ??????????????? ????????????????? ???????? ?????????? ????????? ????????????? ?
??????????????????
- ????????????: ????? ???????????? ???????????? ????????????????????
- ?????????????????: ??????????????????????????????? ??????????????????????? ????, ??????????, ????????????? ???????????? ?????????????????????????????????????????????????? ???????????????????????????????????????????????????????????? ???? ????????????????
3. ?????????????
Silicate minerals are the largest class of minerals in the Earth’s crust, formed by the combination of silicon-oxygen tetrahedra with metal cations. They serve as critical raw materials for various industries:
?????????? (KAlSi?O?)
- ????????????: ??????????????????? ???????????????? ???????????????????????????
- Mineralogical Characteristics: The most common silicate mineral in the Earth’s crust, it is a key raw material for the ceramics and glass industries, and also a common associated impurity mineral in silica sand.
?????? (???????????????????????????)
- ????????????: ????????????? ???????????????????????????????????
- ????????????????: ??????????????????????????????? ??????????????????????????????????????????? ???????????????-????????????????????????????????????????????????????????
?????????? (Mg?(Si?O??)(OH)?)
- ????????????: ??????????????????? ????????? ? ??????????????????
- ????????????????: ????????????????????????????????????????? ????????????????????????????????? ????????????????????????????????????
???? (KAl?(AlSi?O??)(OH)?)
- ????????????: ?????????????????????????????????????????? ????????????????????????????
- ?????????????????????: ???????????????????????????????????????????????? ????????????????????????????????????????????????????????? ???????????????????????????????????????????????????????????????????????????????????
??????????????????????????????????
While silicon resources are widespread in the Earth’s crust, the distribution of high-purity, easily exploitable high-quality silicon ore is highly uneven:
- Brazil holds the world’s richest high-grade silica resources.
- ????????????????????????????????????? ????????????????????????????????????????????????
- ??? is the world’s largest producer and consumer of the silicon industry, accounting for 78% of global industrial silicon output in 2021.
- ????????????????????????????????????????? ? ??????????, ?????????????? (DRC), ????, ???????????, ???????, ?????????? ???????????
???????????????????????????????? (?????: ????????)
| ?????? | ??????/??????? | ????????? 2023 | ????????? 2024 | ????????? |
|---|---|---|---|---|
| 1 | ???? | 550.7 (23.9%) | 530 (23.0%) | 19,000 (19%) |
| 2 | ???????? (?????) | 284 (12.3%) | 330 (14.3%) | 3,100 (3.5%) |
| 3 | ???? | 273.6 (11.9%) | 260 (11.3%) | 7,700 (8.8%) |
| 4 | ??? | 180 (7.8%) | 180 (7.8%) | 2,600 (2.9%) |
| 5 | ??????????? | 110 (4.8%) | 110 (4.8%) | 2,400 (2.7%) |
| 6 | ???????????? | 110 (4.8%) | 110 (4.8%) | 4,800 (5.5%) |
| 7 | ??????? | 93 (4.0%) | 93 (4.0%) | 7,700 (8.8%) |
| 8 | ?????????? | 80 (3.5%) | 80 (3.5%) | 9,300 (10%) |
| 9 | ????????? | 74 (3.2%) | 74 (3.2%) | 2,400 |
| 10 | ???????? | 70 (3.0%) | 70 (3.0%) | 5,300 (6.1%) |
??????????????: ??????????????????????????????????????
?????? 1: ?????????????????????
A: ????????????????????????????????????????????????????????? ?????????? ??????????????????????????????? (SiO?) ?????????????????????? ?????????? ????????? ????????????????????????????????????????????????????????????????
????????? 2: ???????????????????????????????????
A: ?????????????????????????????????????????????????? ?????????????????????????????????????????????????, ??????????, ?????????? ?????????????? ??????????????????? ???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????
???????? 3: ????????????????????????????????????????????
A: ??????????????????????????????????????????? ????????????????????????????????????????????????????? (???????????????????????????????????) ??????????????? ?????????????????????????? ????????????????? ??????????????????????????????????? ??????????????????????????? ???????????????????????? ?????????????????
??????????????
????????