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An Automatic Oil Muffle Furnace, circa 1910. Petroleum is contained in tank A, and is kept under pressure by pumping at intervals with the wooden handle, so that when the valve B is opened, the oil is vaporized by passing through a heating coil at the furnace entrance, and when ignited burns fiercely as a gas flame.
A Topf transportable, double-muffle oven was delivered in winter 1939/40, and two, three-muffle stationary ovens were ordered. As with all Topf & Söhne stationary ovens, the parts were made in the factory in Erfurt, and the firm's staff went on site to build them, often spending months at the camps.
This is usually carried out in a 'muffle' furnace, containing a refractory muffle (usually nitride-bonded silicon carbide) heated externally by silicon carbide heating elements. A flow of air through the muffle assists oxidation of the lead, and carries the fumes for safe collection outside the furnace unit.
If desired, the concentrations of volatile (organic) and fixed (inorganic) suspended solids can be separated out using the loss-on-ignition method by burning the filter in a muffle furnace to burn off organic matter, leaving behind ash including mineral particles and inorganic components of phytoplankton cells, with TSS = volatile suspended ...
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Furnace "A" is a type c.d. "muffle" furnace. [7] There are very few examples of this type in Europe, and archaeology scholars maintain an absolute reserve on them. [ 8 ] The structure of the "praefurnium" and part of the rectangular corridor (60 centimetres wide and 2.7 metres deep), which served to introduce firewood into the combustion ...
A scary, sobering look at fatal domestic violence in the United States
The temperature inside Claus furnace is often maintained above 1050°C. [9] [10] This ensures BTEX (Benzene, Toluene, Ethyl benzene and Xylene) destruction which otherwise would clog downstream Claus catalyst. [11] Gases containing ammonia, such as the gas from the refinery's sour water stripper (SWS), or hydrocarbons are converted in the ...