METHOD FOR STOPPING THE ENVIRONMENT DAMAGING EFFECT OF INDUSTRIAL WASTES CAUSING ENVIRONMENTAL DAMAGES

• Main Authors: MIKE,KAROLY,HU, SMELKO,PETER,HU, CSANYI,ISTVAN,HU, KALMAN,VINCE,HU
• Format: Patent
• Language: English
• Published: 28.07.1989
• Edition: 4
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT; COMPOSITIONS BASED THEREON; GENERAL PROCESSES OF COMPOUNDING; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; MAKING GRANULES OR PREFORMS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING-UP

Industrial wastes contg. environmentally harmful isocyanates arising from polyuretane prodn. are rendered harmless by contacting them with polyols in the presence of starch and water. Prior to treatment the wastes are pref. bulked. The prod. of the treatment is homogeneous solid, practically insoluble in water, and harmless to living organisms.