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Application filed by Le I Inzhenerov ZheleznodorozhfiledCriticalLe I Inzhenerov Zheleznodorozh
Priority to FI870322ApriorityCriticalpatent/FI84140C/en
Publication of FI870322A0publicationCriticalpatent/FI870322A0/en
Publication of FI870322ApublicationCriticalpatent/FI870322A/en
Publication of FI84140BpublicationCriticalpatent/FI84140B/en
Application grantedgrantedCritical
Publication of FI84140CpublicationCriticalpatent/FI84140C/en
Solid-Sorbent Or Filter-Aiding Compositions
(AREA)
Water Treatment By Sorption
(AREA)
Separation Of Suspended Particles By Flocculating Agents
(AREA)
Abstract
Method to produce a granulated filter material for purification of natural water in order to obtain drinking water, said method consisting of granulation of an aqueous suspension of kaolin with addition of powdered dolomite in an amount of 20 to 25% of the kaolin mass in a pseudofluidized bed and then calcining the obtained granules at a temperature of 900-950 degrees Celsius.
FI870322A1987-01-261987-01-26
FOERFARANDE FOER FRAMSTAELLNING AV ETT GRANULERAT FILTERMATERIAL FOER RENGOERING AV NATURVATTEN.
FI84140C
(en)
Purification of reaction mixture produced on manufacturing 2,3-epoxypropyltrialkylammonium chloride by treating chlorohydroxypropyltrialkylammonium chloride with alkali functional substance in aqueous medium
Aminocarboxylic acids, amino alcohols, or the derivatives thereof, processes for production thereof, and pharmaceutical composition, containing at least one of these compounds