Round Nickel Wire Mesh Demister Pad Mist Eliminator For Chemical Equipment

NICKEL Wire Mesh Demister / Mist Eliminator / Dimister Pads With Frame For Chemical Equipment

Nickel wire mesh demister, pure nickel wire mesh demister, nickel demister, nickel mist eliminator, nickel demister pads.Nickel wire mesh demister is particularly resistant to alkali corrosion and is stable in high temperature or molten alkali, so it is mainly used in the alkali industry. At room temperature, nickel is extremely stable in seawater and salt solutions and in organic media such as fatty acids, phenols, alcohols, and the like.

It is an industrial pure nickel that is deformable and has ferromagnetism. It has high plasticity over a wide temperature range and has an approximate strength to medium carbon steel in the annealed state. It resists corrosion from a neutral to moderate reducing environment and can also be used in an oxidizing environment due to the formation of a passivated oxide film on the surface of the alloy. Pure nickel is a kind of silver-white metal. Due to its excellent corrosion resistance, high electrical vacuum performance and electromagnetic control performance, it is widely used in chemical, mechanical and electronic, food and other aspects. Pure nickel has excellent weldability and processing properties. Nickel and nickel alloys can be processed into tube rod and sheet foil products. Pure nickel 200 is the most widely used material in the industry. It has good mechanical properties, excellent corrosion resistance in many corrosive environments, and is particularly resistant to caustic soda corrosion. The difference between pure nickel 201 and pure nickel 200 is that the former has a maximum carbon content of 0.02% and the latter has a 0.15%. Pure nickel 201 has good corrosion resistance under conditions of high temperature and high concentration of alkali and chloride ions.

Pure nickel Ni200/Pure nickel N6

Ni200/N6 Chemical Composition(GB5235－85)

Ni201/N4

Pure nickel wire mesh demister features:
The mechanical properties of nickel are close to that of carbon steel, but its resistance to alkaline corrosion is second only to silver in metallic materials. Nickel will form a black protective film on the surface of concentrated alkali. Make it very resistant to corrosion. Therefore, nickel is particularly suitable for the manufacture of equipment for the treatment of concentrated lye. The main factors affecting the service life of nickel equipment are the concentration of caustic soda, temperature and impurity content, especially the content of NaCI and NaCIO3. The higher the concentration of alkali and the lower the impurity content, the longer the service life of nickel and nickel alloy. The biggest feature of nickel is the corrosion of alkali-resistant medium, such as caustic potash, caustic soda, etc., which is widely used in ion-exchange membrane caustic soda process. Nickel has good corrosion resistance in dry fluorine. Nickel has also been successfully used in dry chlorine and hydrogen chloride at normal temperatures up to 540 °C. It can also be applied to a stationary hydrofluoric acid solution. China began to use nickel and nickel alloys in the chlor-alkali industry in the 1980s. Nickel and nickel alloys have played a very important role in the chlor-alkali industry for more than a decade.

Corrosion resistance of nickel:
Particularly resistant to alkali corrosion, whether it is stable in high temperature or molten alkali, it is mainly used in the alkali industry. At room temperature, nickel is extremely stable in seawater and salt solutions and in organic media such as fatty acids, phenols, alcohols, and the like. Not resistant to inorganic acid corrosion, also unstable in acetic acid and formic acid.
◆ Nickel forms a very dense and strong protective film on the nickel surface in the open air.
◆In the air with sulfur dioxide and hydrogen sulfide, the corrosion rate of nickel is 0.001-0.001 mm/year, 0.0001-0.00013 mm/year in the ocean atmosphere, 0.00003-0.00013 mm/year in the rural area, in natural fresh water. It is 0.003 mm/year and 0.13 mm/year in seawater.
◆Vapor condensate has little effect on nickel. However, when the condensate is saturated with air and carbon dioxide (30% air 70% CO2), the corrosion rate is 0.22 mm/year at 120 °C.
◆Inorganic acids, especially nitric acid and nitrous acid, have a strong effect on nickel. Alkaline and neutral solutions of carbonates, nitrates, sulfates, chlorides and acetic acid have minimal effect on nickel and have a corrosion rate of 0.013 mm/year, but the acidic solutions of these salts react strongly with nickel to 1 mm. /year.
◆In the caustic solution, due to the formation of a strong protective film on the nickel surface, it is extremely stable even at high temperatures (0.01 to 0.003 mm/year).
◆ Nickel does not corrode in anhydrous ammonia. Corrosion of nickel is remarkable in the presence of more than 10% concentrated ammonia solution and air.