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1. WO1996004981 - METHOD FOR SEPARATING MATERIALS

Publication Number WO/1996/004981
Publication Date 22.02.1996
International Application No. PCT/US1995/009679
International Filing Date 04.08.1995
Chapter 2 Demand Filed 20.11.1995
IPC
B01D 61/02 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
61Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
02Reverse osmosis; Hyperfiltration
C02F 1/26 2006.01
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
26by extraction
CPC
B01D 61/02
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
61Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis, ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
02Reverse osmosis; Hyperfiltration ; ; Nanofiltration
C02F 1/26
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
26by extraction
Applicants
  • HENKEL CORPORATION [US/US]; Suite 150 140 Germantown Pike Plymouth Meeting, PA 19462, US
Inventors
  • KOZAK, William, G.; US
  • CHOVATIA, Dharmesh; US
  • SMITH, George, A.; US
  • VIRNIG, Michael, J.; US
  • MATTISON, Phillip, L.; US
  • WEERTS, Keith, E.; US
Agents
  • WOOD, John, Daniel; Henkel Corporation Suite 150 140 Germantown Pike Plymouth Meeting, PA 19462, US
Priority Data
08/287,01408.08.1994US
08/395,77428.02.1995US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD FOR SEPARATING MATERIALS
(FR) PROCEDE DE SEPARATION DE MATERIAUX
Abstract
(EN)
A process for the separation of naphthalenesulfonate-based carbonyl condensates from water is provided. The process comprises contacting a mixture comprised of water and a naphthalenesulfonate-based carbonyl condensate (preferably a material selected from the group consisting of formaldehyde condensates of naphthalenesulfonic acids, formaldehyde condensates of lower-alkyl substituted naphthalenesulfonic acids, and mixtures of two or more of such materials) with a liquid organic phase comprised of a cationic lipophilic amine to form an aqueous phase depleted with respect to said mixture of naphthalenesulfonate-based carbonyl condensate and a liquid organic phase enriched in naphthalenesulfonate-based carbonyl condensate. The process further comprises separating said aqueous phase depleted with respect to said mixture of naphthalenesulfonate-based carbonyl condensate and said liquid organic phase enriched with respect to naphthalenesulfonate-based carbonyl condensate. The liquid organic phase can then be stripped with an alkaline stripping solution to regenerate the cationic lipophilic amine.
(FR)
Procédé de séparation de condensats de carbonyle à base de sulfonate de naphtalène contenus dans de l'eau. Ce procédé consiste à mettre en contact un mélange composé d'eau et d'un condensat de carbonyle à base de sulfonate de naphtalène (de préférence, un matériau sélectionné dans le groupe constitué par des condensats de formaldéhyde d'acide naphtalènesulfonique, par des condensats de formaldéhyde d'acides naphtalènesulfoniques substitués par alkyle inférieur ou par des mélanges de deux ou de plusieurs de ces matériaux) avec une phase liquide organique composée d'une amine cationique lipophile, afin d'obtenir une phase aqueuse appauvrie en condensat de carbonyle à base de sulfonate de naphtalène et une phase liquide organique enrichie en condensat de carbonyle à base de sulfonate de naphtalène. Ce procédé consiste, de plus, à séparer ladite phase aqueuse appauvrie et ladite phase liquide organique enrichie. Celle-ci peut être soumise à une désorption au moyen d'une solution de désorption alcaline, afin de régénérer l'amine cationique lipophile.
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