Downs process is an electrochemical method for the commercial preparation of metallic sodium, in which molten NaCl is electrolyzed in a special apparatus called the Downs cell. The Downs cell was invented in 1923 (patented: 1924) by the American …

Today, there are four common commercial processes for extracting magnesium: the Dow Process, which extracts magnesium from sea water by electrolysis of magnesium chloride (Emley, 1966, pp 41–44); the Magnola Process which also uses electrolysis of magnesium chloride, but obtains the chloride through a conversion of magnesium silicates in ...

A short-side-chain (SSC) perfluorinated ionomer (the Dow membrane) with no fluoroether group in the pendant side-chain comprising only two CF 2 groups was introduced during the 1980s by the Dow Chemical Company. 2 Although significant improvement in fuel cell performance was obtained by researchers at companies such as Ballard Power Systems ...

Laplace’s equation in Dow electrolytic cell, the computation of voltage distribution in anode was carried out by using the method of successive over relaxation finite difference method. The developed finite difference program is constructed to study the effect of various design parameters or operate change on the

The North American company is expected to take postconsumer plastics and, using a proprietary Dow process, convert them into resins for use in Domtar s manufacturing or to be sold by Dow. The Dow Process utilizes an elimination/addition reaction to convert chlorobenzene to phenol.

1995年6月1日 · A Dow cell method described in ASTM D1434-82 (Storer, 1990) was used to determine the film permeability at 22 and in dry conditions. The applied gas pressure used in the Dow cell was 9.30 x 103 Pa. A second technique which used a mixed gas cell was developed to measure the film permeability under storage conditions of high humidity and low ...

The Dow electrolytic cell is a steel shell about 16 ft (4.88 m) long, 5 ft (1.52 m) wide, and 6 ft (1.83 m) deep. The electrolyte contains about 60% NaCl, 15% CaCl 2, and 25% MgCl 2; it is maintained at a temperature of 700 to 750 degrees C by controlled firing underneath the cell. Ref: Newton, 1

2007年7月31日 · The Nafion, Dow and Aciplex systems – where the prime differences lies in the side-chain length – have been studied by molecular dynamics (MD) simulation under standard pressure and temperature conditions for two different levels of hydration: 5 and 15 water molecules per (H)SO3 end-group.

dow (electrolytic) cell的中文意思：[化学 冶金] Dow（电解）电池 …，查阅dow (electrolytic) cell的详细中文翻译、发音等。

dow cell for bromine 道氏制溴电池; dow cell 道氏电解池; 道氏制溴电池; 道氏制溴电解池; 道屋镁电解槽; bromine n. 【化学】溴〔略作 Br.〕。 dow vi. (dowed, dought; dowed, dought) 〔主 Scot.〕 得以，能够 (＝ be able to)。 n. 〔the Dow〕 【经济学】道琼斯平均指数。