PATENTSCOPE will be unavailable a few hours for maintenance reason on Tuesday 19.11.2019 at 4:00 PM CET
Search International and National Patent Collections
Some content of this application is unavailable at the moment.
If this situation persists, please contact us atFeedback&Contact
1. (WO1979000230) A METHOD AND AN AGENT FOR CHEMICAL PURIFICATION OF WATER BY MEANS OF CHEMICAL PRECIPITATION AND MAGNETIC SLUDGE SEPARATION
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1979/000230 International Application No.: PCT/SE1978/000063
Publication Date: 03.05.1979 International Filing Date: 23.10.1978
IPC:
B03C 1/00 (2006.01) ,B03C 1/015 (2006.01) ,B03C 1/025 (2006.01) ,C02F 1/48 (2006.01) ,C02F 1/52 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
03
SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
C
MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
1
Magnetic separation
B PERFORMING OPERATIONS; TRANSPORTING
03
SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
C
MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
1
Magnetic separation
005
Pretreatment specially adapted for magnetic separation
015
by chemical treatment imparting magnetic properties to the material to be separated, e.g. roasting, reduction, oxidation
B PERFORMING OPERATIONS; TRANSPORTING
03
SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
C
MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
1
Magnetic separation
02
acting directly on the substance being separated
025
High gradient magnetic separators
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
48
with magnetic or electric fields
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
Applicants:
Inventors:
Priority Data:
771194824.10.1977SE
Title (EN) A METHOD AND AN AGENT FOR CHEMICAL PURIFICATION OF WATER BY MEANS OF CHEMICAL PRECIPITATION AND MAGNETIC SLUDGE SEPARATION
(FR) METHODE ET AGENT DE PURIFICATION CHIMIQUE DE L"EAU PAR PRECIPITATION CHIMIQUE ET SEPARATION MAGNETIQUE DE LA BOUE
Abstract:
(EN) A method and an agent for chemical purification of water is provided, especially waste water with subsequent magnetic sludge separation. A precipitation agent comprising as component aluminium sulphate and/or iron sulphate is used together with a magnetic material for the purification. In order to provide uniform distribution of the magnetic material in the agent composition it is added to the aluminium and/or iron sulphate component of the composition when said component is in the form of a melt or solution prior to crystallization of said composition.
(FR) Une methode et un agent de purification chimique de l"eau, specialement des eaux residuaires, avec separation magnetique ulterieure de la boue. Un agent de precipitation comprenant, en tant que composant, du sulfate d"aluminium et/ou du sulfate de fer est melange a un materiau magnetique pour effectuer la purification. Pour assurer une repartition uniforme du materiau magnetique dans la composition de l"agent, on ajoute du sulfate d"aluminium et/ou de fer lorsque ledit composant se trouve a l"etat de fusion ou de solution avant que n"ait lieu la cristallisation de ladite composition.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)