Method for decomposing nonmetallic honeycomb panel, and...

Details Method for decomposing nonmetallic honeycomb panel, and... Method for decomposing nonmetallic honeycomb panel, and...

2006-08-01

2006-08-01

Bhat, N. (Department: 1764)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Process of treating scrap or waste product containing solid...

C528S499000, C528S481000

Reexamination Certificate

active

07084181

ABSTRACT:
The present invention treats crushed pieces of a nonmetallic honeycomb panel together with a process water under high-temperature and high-pressure for a predetermined time so as to separate components. Water or alkali-added water is used as process water. The method comprises a first process for treating the crushed pieces for a predetermined time with the water heated and pressurized to a subcritical range to hydrolyze aromatic polyamide, and a second process for treating the same with the water heated and pressurized to a supercritical range, wherein the aromatic polyamide is hydrolyzed and separated in the first process, and dehalogenation is carried out in the second process.

REFERENCES:
patent: 4952662 (1990-08-01), Finke et al.
patent: 5149759 (1992-09-01), Miess et al.
patent: 5326791 (1994-07-01), Saleh et al.
patent: 5840773 (1998-11-01), Booij et al.

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