ISSN:
1573-8493
Source:
Springer Online Journal Archives 1860-2000
Topics:
Technology
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
Conclusions It is recommended to use a mixture based on caprolactam and benzoic acid, with small amounts of added water, for the low-temperature condensation of CL vapor in the synthesis of PCA under vacuum. Condensation of CL vapor at a temperature below 333°K permits one to return 7–9 kg of CL per ton of polymer to the technological cycle. The use of low-temperature condensation permits one to reduce the concentration factor of lactam in water from the steam-ejector pumps by a factor of more than 30 and to effect water recycling.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00548128
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