Verfahren zum kontinuierlichen Kristallisieren und Polymerisieren von Kunststoffmaterial und Einrichtung hierfür

In a procedure for continuously crystallizing and polymerizing polyester and polyamide materials, amorphous material is first precrystallized, preferably in a fluidized bed (1,2), then heated up to the reaction temperature in a preheating zone (4) and finally polymerized and largely liberated from b...

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Bibliographische Detailangaben
Hauptverfasser:	CULBERT, BRENT ALLEN, WIL, CH, RUF, ARTHUR., SCHWERZENBACH, CH, TRENKA, ESZTER, NIEDERUZWIL, CH
Format:	Patent
Sprache:	ger
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS MAKING GRANULES OR PREFORMS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	In a procedure for continuously crystallizing and polymerizing polyester and polyamide materials, amorphous material is first precrystallized, preferably in a fluidized bed (1,2), then heated up to the reaction temperature in a preheating zone (4) and finally polymerized and largely liberated from byproducts in a reactor (3). In this procedure, material from the discharge area of the preheating zone (4), of the reactor (3) or of a cooler (8) is subjected to an optical analysis in an analyzing unit whereby the degree of polymerization of the material and/or the contents of byproducts can be determined. The result of the analysis as actual value is compared in an comparator unit with a predetermined nominal value obtained in at least one calibration procedure for forming at least one controlled value serving to form at least one control signal that can be supplied to at least one final control element.