Household solar pv industry demand, fuelling liquid argon prices take off!

The liquid argon during the first half of 2019 for an average of 1151 yuan/ton, in the photovoltaic industry demand, driven by the end of December, the highest average price of liquid argon in guangdong province has been as high as 5100 ~ 5300 yuan/ton, and continue bullish!

1, the application of liquid argon in the photovoltaic industry

argon is a colorless, odorless gas, formula for Ar, to the 18th elements. Argon gas is a kind of rare gas, production directly from the atmosphere, argon and other gases in the air of 0. 94%.

argon currently has a wide application in industry. In the field of photovoltaic (pv), liquid argon widely used in light industry.

1, the silicon material manufacturing

& other; Xinjiang east hope new energy co. , LTD. , with annual capacity of 120000 tons of polysilicon project & throughout; : in the introduction of this project is to industrial silicon powder ( 如果≥ 99%) , 30% sodium hydroxide, graphite electrode, hydrofluoric acid, nitric acid, liquid argon, quick lime, catalyst and adsorbent, etc as main raw materials, solar energy, using the method of improved Siemens ( The hydrogenation process) Production of solar energy/electronic level polysilicon 12 tons/year.

2, in silicon wafer manufacturing link czochralski single-crystal furnace control in the process of single crystal, generally do with argon gas protection. Czochralski single crystal furnace, though different form, is mainly composed of: furnace, electric parts, heating system, cooling system, vacuum system and argon gas device five major components.

liquid argon gas in the liquid argon storage tank, solar portal, liquid argon tank is double, solar power grid, a vacuum in the middle. Liquid argon gas purity is high, can satisfy the requirement of control number. Surrounded by liquid argon as a protective gas around the surface of monocrystalline silicon and polycrystalline silicon, can protect the monocrystalline silicon and polycrystalline silicon oxide.

in a liquid argon with single crystal furnace before passes through gasification, and photovoltaic (pv) grid, liquid argon quality directly affect the internal index of single crystal, argon gas is not pure, can cause serious furnace oxidation, thus affecting the monocrystalline silicon oxygen carbon content.

, according to a 2017 report per 1 gw monocrystalline silicon production need 10000 tons of liquid argon consumption for each production 1 gw polysilicon USES argon 0. 50000 tons. In 2016, the argon consumption accounted for 20% - pv industry Argon gas consumption accounted for 30% 30%, the stainless steel industry.

since 2018, the main monocrystalline silicon production enterprise argon recovery machine, recovery rate can reach more than 90%.

2, the price of liquid argon change

chart for 2017, 2018, 20193 1 ~ 6 months of liquid argon prices

according to zhuo and data monitoring, solar energy, in the first half of 2019 the national liquid argon for an average of 1151 yuan/ton.

in the near future, with the longji, crystal, such as monocrystalline silicon slice of new production capacity, pv industry as a whole of argon consumption greatly promotes the overall demand of the domestic argon, and resources in the area of tight supply.

according to takashi the information reported on December 6:

mainstream pick in the 5100 - unit price in guangdong area About 5300 yuan/ton. Guangdong walt co. , LTD. Liquid argon gas price stability to 5000 yuan/ton; Guangzhou injure gas energy co. , LTD. , liquid argon stable prices to 5000 yuan/ton.

Beijing shougang oxygen installation liquid argon stable ex-factory price 3500 yuan/ton, the downstream pick enthusiasm is good, price is looking up.

tangshan tangshan co. , LTD. , liquid argon gas producer price rises to 3000 yuan/ton. （ Wang sj)