Distillation furnace

Figure i. Distilling furnaces, as depicted in [Peter Kertzemnacher], Alchimia das ist alle Farben, Wassei, Olea, Salia, und Alumina. . . zubereyten (Frankfurt am Main Bey C. Engenoffs Erben, 1570). (From the Roy G. Neville Historical Chemical Library, a collection in the Othmer Library, Chemical Heritage Foundation. Photo hy Douglas A. 

Distilling furnaces, as depicted in [Peter Kertzenmacher], Alchimia das ist... 

Figure 7.13 Vacuum-distillation furnace, Kroll process.

The first plants designed to recover the cadmium from nickel-cadmium batteries appear to have started up in the early 60 s. These plants used distilling furnaces... 

Although the first cadmium distilling furnace built to operate the S.N.A.M. process goes back to 1965, the first S.N.A.M. plant was not built until 1982. 

MITSUI MINING, at the request of a Japanese manufacturer of nickel-cadmium batteries, developed a distilling furnace which has remained at the prototype stage. 

On the other hand, the cadmium was recovered in the form of very impure cadmium oxide, with high nickel, zinc and carbon contents. This made it necessary to add one or two distilling furnaces to the treatment furnace to convert the cadmium oxide into cadmium metal with an average purity of 99.95% and which still had to be refined to obtain a purity of 99.99%, or else sold unrefined at an unfavourable price. 

Its current capacity is 1,400 tormes with 6 distillation furnaces. It specialises in the treatment of used nickel cadmium sealed cells and those rejected during manufacture. 

Its current capacity is 3,300 tonnes with 9 distillation furnaces. It treats all types of waste but mainly nickel-cadmium industrial batteries and production waste. 

Distilling furnace in terraces. The fire is in the centre of the cone at the sides there are draught channels for temperature regula tion. The earthenware fans support the alembics (air bath heating) (16th century)... 

Much of the distillate (furnace oil, diesel oil, kerosene, etc.) produced in a refinery must be hydrodesulfurized. Part of this process involves a low-temperature (about 100°F-140°F), high-pressure (several hundred psig) separation of hydrogen-rich gas and the desulfurized liquid. 

Bu-Zheng Yang et al., Continuous Vaeuum Distillation Furnace for Raw Cadmium Refinement , Industrial furnace, 29 (1) (2007), 5—8. 

FIG.9 ZINC DISTILLATION FURNACE-ZAWAR CROSS SECTION... 

The distillation curves of several distilled furnace feedstocks are indicated in Fig. 19-9 and meager information about them in Table... 

Once precipitated, it is difficult to redissolve asphaltenes quickly. Meanwhile, precipitated asphaltenes can cause stable oil-water emulsions, plugging of transportation lines, fouling of heat exchangers, and catastrophic coking of distillation furnace tubes. 

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