| 摘要 |
<PICT:0968446/C6-C7/1> A continuous process for the production of gallium comprises reducing gallium trichloride vapour with hydrogen at an elevated temperature, e.g. 1000-1300 DEG C. In Fig. 1, the crude trichloride is rectified in a plate column 3 and the purified feed from the condenser 4 flows to the reserve flask 5 which in turn feeds flask 9. Pure hydrogen enters flask 9 by tube 11, the gaseous mixture being reduced in tube 13 heated by oven 14. Any unreacted trichloride is condensed by blowers 15 and condenser 16 and it returns to flask 9 partly through tube 13, some of it passing right through the oven 14 and entraining the liquid gallium product, and partly through siphon 18. The gallium product is recovered from flask 9 by means of siphon 10. Fig. 2 (not shown) has a longer oven 14 and the condenser 19 returns all the condensate immediately back to the oven and thence to flask 9. |
