塩化亜鉛をフラックスとするアルミニウムスクラップからの脱マグネシウム
スポンサーリンク
概要
- 論文の詳細を見る
Demagging was tried using ZnCl2 dissolved in NaCl-KCl eutectic salt bath as a substitute for expensive AlCl3 and AlF3. The demagging reaction is:Mg (in Al) + ZnCl2→Zn (in Al) + MgCl2The products are Zn-Al alloy and MgCl2 entrapped in NaCl-KCl melt. Separation of Zn and Al and electrolysis of MgCl2 in NaCl-KCl melt are required to extract Zn, Al, Mg and Cl2 gas. This substitutional chlorination reaction results in complete transfer of Mg from Al scrap to salt bath without loss ofAl or without harmful AlCl3 and Cl2 gases emission and MgCl2 wast generation. The demagging with ZnCl2 is controlled by complex ion formation among weak Lewis base ZnCl2 and strong base AlCl3 and MgCl2. An addition of NaCl-KCl to ZnCl2 as a reaction medium overcomes depression of ZnCl2 activity and dilutes Mg in Zn-Al alloy down to 0.01wt% at 650°C quickly.
- 一般社団法人 軽金属学会の論文
一般社団法人 軽金属学会 | 論文
- Mechanical and wear properties of SiC whisker/ADC12 aluminum alloy composites fabricated by die casting.
- Joining of aluminum and ceramics.
- タイトル無し
- Undercooling and solidification behavior of fluid clumps of second-poured melt of hypereutectic Al-Si alloy in Duplex Casting process.
- Change in apparent viscosity of stirred slurry during production of semi-solid hypereutectic Al-Si alloy by slurry-melt mixing process.