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1. (WO1979000975) PROCESS FOR TREATING CRUDE WATERS AND WASTE WATERS AND APPLICATION THEREOF
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1979/000975 International Application No.: PCT/FR1979/000035
Publication Date: 29.11.1979 International Filing Date: 23.04.1979
IPC:
C02F 1/54 (2006.01) ,C08G 12/32 (2006.01)
C CHEMISTRY; METALLURGY
02
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1
Treatment of water, waste water, or sewage
52
by flocculation or precipitation of suspended impurities
54
using organic material
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
12
Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
02
of aldehydes
26
with heterocyclic compounds
30
with substituted triazines
32
Melamines
Applicants:
Inventors:
Priority Data:
781209224.04.1978FR
Title (EN) PROCESS FOR TREATING CRUDE WATERS AND WASTE WATERS AND APPLICATION THEREOF
(FR) PROCEDE DE TRAITEMENT DES EAUX BRUTES ET DES EAUX RESIDUAIRES ET SON APPLICATION
Abstract:
(EN) Process for treating crude and waste waters. This process effected by means of a cationic aminoplast resin is characterized in that a quaternized aminoplast resin is used as a cationic aminoplast resin, in which the aldehyde is a glyoxal or a mixture of glyoxal and formaldehyde and the nitrogen compound is melamine or melamine with some urea. Application to processing of crude waters and waste waters.
(FR) Procede de traitement des eaux brutes et des eaux residuaires. Ce procede effectue au moyen d"une resine aminoplaste cationique est caracterise par le fait que l"on utilise comme resine aminoplaste cationique une resine aminoplaste quaternisee dans laquelle l"aldehyde est du glyoxal ou un melange de glyoxal et de formaldehyde et le compose azote est de la melamine ou de la melamine avec un peu d"uree. Application aux traitements des eaux brutes et des eaux residuaires.
Designated States:
Publication Language: French (FR)
Filing Language: French (FR)