| abstract |
1438091 Vacuum furnace TH GOLDSCHMIDT AG 7 Jan 1974 [26 Jan 1973] 00725/74 Heading F4B [Also in Division C7] A furnace contains a reaction chamber 1 holding two reaction vessels 2, 3, the chamber 1 being evacuated by pipe 4 to a vacuum of #10<SP>-2</SP> mm. Hg, and the furnace space outside the chamber being evacuated to the same pressure by means not shown. When the desired pressure is reached, the vessels 2, 3 are heated independently by coils 5, 6 respectively for the reaction between the contents of the vessels to occur. The furnace is lined with magnesite bricks 7. |