Condensor

A schematic of the MGCC process is shown in Figure 9. The mixed Cg aromatic feed is sent to an extractor (unit A) where it is in contact with HF—BF and hexane. The MX—HF—BF complex is sent to the decomposer (unit B) or the isomerization section (unit D). In the decomposer, BF is stripped and taken overhead from a condensor—separator (unit C), whereas HF in hexane is recycled from the bottom of C. Recovered MX is sent to column E for further purification. The remaining Cg aromatic compounds and hexane are sent to raffinate column E where residual BE and HE are separated, as well as hexane for recycle. Higher boiling materials are rejected in column H, and EB and OX are recovered in columns I and J. The overhead from J is fed to unit K for PX separation. The raffinate or mother Hquor is then recycled for isomerization. 

Fig. 3. Flow sheet for the preparation of acetoacetic esters (Lon2a). A, reactor B, rectification column C, condensor.

Hsat Load in Cooler-Condensor Section Only, Q, Btu /hr., (in thou sonde)... 

Muntz metal Cm 60,0 Zn 40.0 Annealed 20 54 45 80 Condensor tubes valve stress... 

FIG. 17 Alkylation of benzene with n-chloroparaffins. R, reactor ST, settling tank SC, stripping column C, condensor V, vessel. 

FIG. 18 Neutralization section. M, mixer T, tank C, condensor ST, settling tank DT, drying tower. 

FIG. 9 Saponification of alkane sulfochlorides (Leuna technology). 1, Saponification reactor 2, pH control 3, separation tube 4, cooler 5, dilution stirring unit 6, preheater 7, vaporizer 8, cyclone separator 9, condensor 10, cooling roller 11, stirred dissolution tank. 

A 41 resin reactor, equipped with a condensor, a stirrer and a nitrogen inlet, is charged with a polyether polyol and maleic anhydride. The mixture is heated to 60 °C and the catalyst is added. The mixture is then heated to 185 °C for 10 h or until the acid number is reduced to 140mgKOH/g. Some propylene glycol is added and the mixture is maintained at this temperature for another 4h or until the acid number is lowered to about 40mgKOH/g. The yield is about 90 %. 

A 3000 molecular weight polypropylene ether) triol (Arcol F3020, 90 g) was mixed with maleic anhydride (60 g) and zinc chloride (2.25 g) in a three-necked round-bottomed flask equipped with a magnetic stirrer, a condensor and a thermometer. Under a nitrogen atmosphere, the reaction mixture was heated to 190 °C... 

In a 100-mL Schlenk flask equipped with a reflux condensor, an exit bubbler, and a magnetic stirring bar, 24 mL dry THF is deoxygenated by refluxing in an Ar or a N2 stream for 10 min. In the hot THF, 384 mg (0.4 mmol) RuCl 2(PPh3)3 is dissolved completely, followed by the addition of 384 mg (0.96 mmol) TPPMS, dissolved in 6 mL hot THF, under a constant flow of Ar or N2. The deep brown solution yields a light brown precipitate in... 

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