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Machine translation
1. (WO1980000119) PROCESS AND DEVICE FOR GAS TREATMENT
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/000119    International Application No.:    PCT/DE1979/000061
Publication Date: 07.02.1980 International Filing Date: 22.06.1979
IPC:
A01M 17/00 (2006.01), A01N 59/26 (2006.01), A61L 9/12 (2006.01)
Applicants:
Inventors:
Priority Data:
7818669 22.06.1978 DE
Title (EN) PROCESS AND DEVICE FOR GAS TREATMENT
(FR) PROCEDE ET DISPOSITIF POUR TRAITEMENT GAZEUX
Abstract: front page image
(EN)A preparation of metal phosphore prepacked preferably in crap paper bags is sealed between two layers of a moisture-free, non-hygroscopic, flexible, plastic sheet band, of which at least one layer let moisture pass through. Pockets for the preparation are formed by means of welding beads made at regular intervals transversally to the band. The welding beads arranged between the pockets make up inflexion points. Then, the band (1) containing the bags and having a length comprised between 3 and 10 m. is wound so as to form a cylindrical body (39) which is introduced into an air tight tin box. The box is open only just before making use of the preparation at the location of the gas treatment. The band is unwound onto the surface of, for example, a bulk material to be treated such as wheat and is extended freely. The gasing bottle is kept sealed until the end of the gasing, i.e. during several days. Following a reaction of the preparation with the air moisture, very toxic gases phosphorous hydrogen are formed which, during gasing, diffuse slowly through all the bulk material. A the end of the gasing, the band containing eventually remains of the preparation is removed, wound and evacuated for destruction.
(FR)Une preparation de phosphore metallique preemballee de preference dans des sachets en papier crepe est scellee entre deux couches d"une bande de feuille plastique, flexible, non hygroscopique et ne contenant pas d"humidite dont au moins une couche laisse passer l"humidite. On forme des poches pour la preparation au moyen de cordons de soudure faits a des intervalles reguliers transversalement par rapport a la bande. Les cordons de soudure disposes entre les poches constituent des points d"inflexion. On enroule la bande (1) contenant des sachets et qui a une longueur par exemple comprise entre 3 et 10 m. de facon a former un corps cylindrique (39) que l"on introduit dans une boite en fer blanc etanche a l"air. On n"ouvre la boite qu"immediatement avant l"emploi de la preparation au lieu du traitement par gaz. On deroule la bande sur la surface par exemple d"une matiere en vrac a traiter telle que du ble et on l"etend librement. On maintient le bocal du gazage hermetiquement ferme jusqu"a la fin du gazage, c"est-a-dire pendant plusieurs jours. Par suite d"une reaction de la preparation avec l"humidite de l"air il se forme de l"hydrogene phosphore gazeux tres toxique qui, au cours du gazage, diffuse lentement a travers la totalite de la matiere en vrac. A la fin du gazage, on enleve la bande contenant eventuellement des residus de la preparation, on l"enroule et on l"evacue aux fins de destruction.
Designated States:
Publication Language: German (DE)
Filing Language: German (DE)