Microwave-assisted generation of volatiles, of supercritical flu

Details Microwave-assisted generation of volatiles, of supercritical flu Microwave-assisted generation of volatiles, of supercritical flu

1993-02-02

1995-01-03

Gromada, Denise L.

Drying and gas or vapor contact with solids

Material treated by electromagnetic energy

Microwave energy

34 82, 34 74, 219690, 422281, F26B 334

Patent

active

053774264

ABSTRACT:
The generation of volatiles from liquid or solid materials is enhanced and accelerated by exposure to microwave radiation. Normally the energy transfer is effected preferentially toward the liquid or solid materials over the generated gaseous volatiles. Sufficient energy is provided at a selected rate that enhances the generation of volatiles to produce headspace samples. Alternatively, the rate can be selected so as to disrupt the equilibrium normally present between the liquid or solid phase and the gaseous phase and produce purge and trap samples; the latter process resulting from the selective energy transfer toward the liquid or solid phase over the gaseous phase. The rate of energy transfer can be chosen so as to bring the medium being subjected to microwave radiation to its supercritical state. The material having reached that state can further be used in numerous applications such as supercritical fluid extraction.

REFERENCES:
patent: 2064422 (1936-12-01), Fenske et al.
patent: 2505139 (1950-04-01), Pascal
patent: 2925328 (1960-02-01), Romagnan
patent: 3409447 (1968-11-01), Jeppson
patent: 3706631 (1972-12-01), Falk
patent: 4168418 (1979-09-01), Bird
patent: 4221680 (1980-09-01), Hardwick et al.
patent: 4294858 (1981-10-01), Moule
patent: 4400398 (1983-08-01), Coenen et al.
patent: 4464402 (1984-08-01), Gannon
patent: 4480993 (1984-11-01), Guiriec
patent: 4554132 (1985-11-01), Collins
patent: 4673560 (1987-06-01), Masse et al.
patent: 4694133 (1987-09-01), Le Viet
patent: 4808782 (1989-02-01), Nakagawa et al.
patent: 4839142 (1989-06-01), Charm
patent: 4898673 (1990-02-01), Rice et al.
patent: 4929462 (1990-05-01), Moorman et al.
patent: 5002784 (1991-03-01), Pare et al.
patent: 5003143 (1991-03-01), Marks et al.
patent: 5026565 (1991-06-01), McLachlan et al.
Katalin Ganzler and Andras Salgo Article entitled "Microwave Extraction-A New Method Superseding Traditional Soxhlet Extraction"-Sep. 8, 1986.
Journal of Chromatography 371 (1986) 299 306 "Microwave Extraction-A Novel Sample Preparation Method for Chromatography".
Flavour and Fragrance Journal-vol. 4, 43-44 (1989) "Microwave Oven Extraction of an Essential Oil".
Article entitled "Essential Oils and Microwaves" (original French document together with translation thereof).

Affiliated with

Also associated with

Rating

Microwave-assisted generation of volatiles, of supercritical flu does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Microwave-assisted generation of volatiles, of supercritical flu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Microwave-assisted generation of volatiles, of supercritical flu will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2202296