Kev faib tawm ntawm Silicon Hlau

Nov 08, 2023

Tso lus

Tus nqi khoom

Cov cim lag luam	Nqe suav nrog se	nce thiab nqis	Lus Cim (USD/ton)
421	2180-2250	↓20	Huangpu Chaw nres nkoj, FOB
2202	2650-2750	--	Huangpu Chaw nres nkoj, FOB
3303	2180-2250	--	Huangpu Chaw nres nkoj, FOB
441	2080-2120	↓20	Huangpu Chaw nres nkoj, FOB
553	2000-2040	↓10	Huangpu Chaw nres nkoj, FOB

Khoom Description

Kev faib tawm ntawmsilicon hlaufeem ntau yog cais los ntawm cov ntsiab lus ntawm peb lub ntsiab impurities ntawm hlau, txhuas thiab calcium uas muaj nyob rau hauv silicon hlau muaj pes tsawg leeg. Raws li cov ntsiab lus ntawm hlau, txhuas thiab calcium hauv hlau silicon, hlau silicon tuaj yeem muab faib ua 553, 441, 411, 421, 3303, 3305, 2202, 2502, 1501, 1101 thiab lwm qib sib txawv.
Hauv kev lag luam, nws yog xim hlau silicon feem ntau yog tsim los ntawm carbon txo cov silicon dioxide nyob rau hauv hluav taws xob furnaces. Kev sib npaug tshuaj lom neeg: SiO2 + 2C → Si + 2CO Lub purity ntawm silicon uas ua li no yog 97 ~ 98%, uas yog hu ua metallic silicon. Tom qab ntawd nws yog yaj thiab recrystallized, thiab impurities raug tshem tawm nrog cov kua qaub kom tau nws cov hlau silicon nrog purity ntawm 99.7 ~ 99.8%.