Diagrams Distillation flask

Remove the ether using the apparatus shown in Fig. II, 13, 4 except that a 200 ml. Claisen flask replaces the distilling flask depicted in the diagram. Distil the residual ester vmder diminished pressure (Fig. II, 20, 1) and collect the ethyl malonate at 92-94°/16 mm. The yield is 105 g. 

A diagram of the apparatus used for the preparation of aluminum bromide in larger amounts is shown in Fig. 9. The reaction vessel A consists of a 250-ml. distilling flask... 

When the vaporizer (1 in the diagram) has been charged with methanol, close stopcock B and open stopcock A, and turn on the heating both for the vaporizer and the distillation flask. When the methanol in flask 1 begins... 

FIGURE 8.42 The temperature-composition diagram showing a maximum-boiling azeotrope (such as acetone and chloroform). When this mixture is fractionally distilled, the (less volatile) azeotropic mixture is left in the flask. 

Fig. 48. Production diagram of tris ro-butoxyoligo[(propyleneoxy)(ethyleneoxy)-(dimethylsiloxy)] ethylsilane 7, 2, 9,11,12 - batch boxes 3, 10- reactors 4, 21 -coolers 5, 6, 8, 16, 17, 19, 22 - receptacles 7, 18 - pressure filters 13 - packed tower 14 - refluxer 75 - Florentine flask 20 - distillation tank 23 - container...

Fig. 65. Production diagram of polymethylsilsesquioxane varnish by the continuous technique 1, 2, 4, 5,8, 10 - batch boxes 3 - agitator 6 - hydrolyser 7, 12 -Florentine flasks 9 - heat exchanger 11 - neutraliser 13 - flusher-receptacle 14, 16, 18 - collectors, 15 - vacuum distillation tank 17 - cooler 19 - balancing tank 20 - druck filter...

Fig. 68. Production diagram of polyphenylsilsesquioxane from triacetoxyphenylsi-lane 1 - 4 - batch boxes 5 - reactor 6, 12 - coolers 7 - Florentine flask 8 - nutsch filter 9, 10, 13 - collectors 11 - distillation tank...

Fig. 71. Production diagram of polydimethylphenylsiloxane and polymethylphen-ylsiloxane varnishes by the continuous technique 1 - weight batch box 2 - tower 3, 5,1 - hydro ejectors 4, 6, 8 - Florentine flasks 9 - container 10 - agitator 11 -distillation tank 12 - condensation apparatus...

A. Pyrolysis of dioyalopentadiene to form oyolopentadiene. Cyclo-pentadiene is prepared from its dimeric form by distillation according to the method of Moffett. The apparatus for the distillation is assembled as shown in Diagram 1. The equipment consists of a 250-mL flask, a Friedrichs condenser fitted with a Haake Model FE hot water circulator, a Cl aisen head, a thermometer, a gas inlet tube, and a collection receiver which Is cooled to -78 C in a dry ice-acetone bath. 

The pilot plant is supported by a bench-top unit designed to simulate actual operation. The glass distillation unit includes most of the key equipment found on the unit. Figure 12-10 illustrates what a simple bench-top unit might look like. The process flow diagram (PFD) includes operational data, such as how many milliliters (mL) the three-neck flask holds measurements of the unit average flow rate for the overhead line, measured in minutes temperature scale in degrees Fahrenheit or Celsius feedstock composition quantity and so on. 

The batch extrusion process, which produces POFs in a completely closed system from the distillation of a monomer by fiber drawing, was developed by Kaino et al. [1]. Figure 5.2 shows a schematic diagram of the apparatus. A purified monomer is placed in a monomer flask, and an initiator and a chain-transfer agent are placed in another flask. Both flasks are sealed and evacuated. After freeze-pump-thaw cycles, the monomer and the mixture of the initiator and chain-transfer agent are distilled into the polymerization reactor. The reactor is heated at a certain temperature for a period adequate to fully polymerize the... 

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