Included activities starts

The activity starts with the production and import of "High-purity multi-Si" in this region.

Included activities ends

The activity ends with providing the "High-purity multi-Si" to the consumers of this product. Transportation is included; however, product losses during transport are negligible and therefore not included.

Description

This is a market dataset representing the consumption market in the region. It includes transportation of the product from the factory gate to consumption, with transport services calculated according to the regional transportation conditions for the product.

Activity Description

The improved Siemens process includes steps such as trichlorosilane synthesis, distillation and purification of trichlorosilane, hydrogen reduction of trichlorosilane, tail gas recovery, and hydrogenation separation of silicon tetrachloride; the silane fluidized bed method involves a process flow including alkaline water electrolysis for hydrogen production, hydrogen purification, cold hydrogenation, silane preparation, granular silicon fluidized bed, and post-treatment.

Process Description

Solar-grade high-purity polycrystalline silicon, purified from metallurgical-grade silicon, achieves a purity level exceeding 99.9999% and is used in the photovoltaic industry.

High-purity multi-Si, unspecified technology, solar grade

High-purity multi-Si, unspecified technology, solar grade