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Extraction of epsilon caprolactam from nylon 6

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Added: 09.08.2019
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Forgot your username? Crude oil-degradation and plasmid profile of nitrifying bacteria isolated from oil-impacted mangrove sediment in the Niger delta of Nigeria. If you have previously obtained access with your personal account, Please log in. The polymerizate leaving the polycondensation reactor a2 generally has a CD content which is about equal to the equilibrium concentration of 0. Application of polycaproamide with its low bioavailability poses a problem of utilizing outworn caprone products. Process for the preparation of copolyamids made of hexamethylenediamine, adipic acide and possibly of at least one short chain carboxylic diacid and acid dimer.

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US20040049005A1 - Method for reducing the caprolactam content of polymanide 6, a polyamide 6 and use thereof - Google Patents

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Process for the recovery of caprolactam from waste containing nylon - DSM N.V.

It was subsequently removed from the list in at the request of the manufacturers. Consequently the re-formation of the caprolactam preferably occurs via the polymer chain end by monomer split-off. Nylon containing waste, especially waste carpet simultaneously represents not only an environmental problem but also a potential source of value if useful materials can be recovered from it. The waste mixture, for example, can be relatively homogeneous or heterogeneous. Process for the preparation of copolyamids made of hexamethylenediamine, adipic acide and possibly of at least one short chain carboxylic diacid and acid dimer. DEB4 en.
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US6093788A - Process of recovering ε-caprolactam from PA-6 synthesis extract water - Google Patents

This purification procedure results in caprolactam of very good quality. Method and device for treating recycling caprolactam with a high water content in the continuous production of polyamide 6. Save to Library. No intermediate treatment of the separated material takes place between separation and condensation.
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View Preview. Acetic acid n-butyl ester.. Kurth Request Username Can't sign in? In general, the concentration of remaining caprolactam is less than about 2 wt.
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