Abstract: A process for removal of TOC from industrial aqueous waste streams which have TOC of 350000 mg/I or less and various pH, wherein the process comprises a plurality of successive steps comprising in each step electromagnetic irradiation in the region 200 nm-600 nm at a temperature of less than 70° C. for photo oxidation of the waste streams using an added oxidant.
Type:
Application
Filed:
July 29, 2019
Publication date:
August 5, 2021
Applicant:
SPOLEK PRO CHEMICKOU A HUTNI VYROBU, AKCIOVA SPOLECNOST
Inventors:
Petra KOVACOVA, Bedrich DUBEN, Pavel KUBICEK
Abstract: A method of highly selective catalytic hydrochlorination of glycerine and/or monochloropropanediols to the dichloropropanol products 1,3-dichloro-2-propanol and 2,3-dichloro-1-propanol, carried out in at least one continuous reaction zone at reaction temperatures in the range of 70-140° C. and with continuous removing of the water of reaction, the liquid feed containing at least 50% by weight of glycerine and/or monochloropropanediols. The method can be carried out in a continuously operating one-step circulation reactor or a cascade of continuous flow reactors of the liquid-gas type.
Type:
Application
Filed:
December 3, 2008
Publication date:
March 26, 2009
Applicant:
Spolek pro chemickou a hutni vyrobu, akciova
Inventors:
Pavel Kubicek, Petr Sladek, Ivana Buricova
Abstract: A method of highly selective catalytic hydrochlorination of glycerine and/or monochloropropanediols to the dichloropropanol products 1,3-dichloro-2-propanol and 2,3-dichloro-1-propanol, carried out in at least one continuous reaction zone at reaction temperatures in the range of 70-140° C. and with continuous removing of the water of reaction, the liquid feed containing at least 50% by weight of glycerine and/or monochloropropanediols. The method can be carried out in a continuously operating one-step circulation reactor or a cascade of continuous flow reactors of the liquid-gas type.
Type:
Application
Filed:
August 23, 2004
Publication date:
July 19, 2007
Applicant:
Spolek pro chemickou a hutni vyrobu, akciova
Inventors:
Pavel Kubicek, Petr Sladek, Ivana Buricova