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EP0642650A1 - Procede de deshydratation de suspensions de matieres solides finement divisees - Google Patents

Procede de deshydratation de suspensions de matieres solides finement divisees

Info

Publication number
EP0642650A1
EP0642650A1 EP93912771A EP93912771A EP0642650A1 EP 0642650 A1 EP0642650 A1 EP 0642650A1 EP 93912771 A EP93912771 A EP 93912771A EP 93912771 A EP93912771 A EP 93912771A EP 0642650 A1 EP0642650 A1 EP 0642650A1
Authority
EP
European Patent Office
Prior art keywords
carbon atoms
mixed ethers
hydroxy mixed
finely divided
divided solid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP93912771A
Other languages
German (de)
English (en)
Inventor
Rita Köster
Gerhard Stoll
Peter Daute
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henkel AG and Co KGaA
Original Assignee
Henkel AG and Co KGaA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Publication of EP0642650A1 publication Critical patent/EP0642650A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B5/00—Drying solid materials or objects by processes not involving the application of heat
    • F26B5/005—Drying solid materials or objects by processes not involving the application of heat by dipping them into or mixing them with a chemical liquid, e.g. organic; chemical, e.g. organic, dewatering aids

Definitions

  • the internal hydroxy mixed ethers are used in amounts of 10 to 500, preferably 100 to 400 and in particular 150 to 250 g, based on solids content, per ton of solid.
  • the product Z is a terminal hydroxy mixed ether based on an alpha-C13 / 14-01efine epoxide according to DE-Al-39 18 274 and is used for comparison.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Molecular Biology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Treatment Of Sludge (AREA)

Abstract

On réalise la déshydratation de suspensions de matières solides finement divisées en utilisant, comme produit auxiliaire, des éthers mixtes hydroxylés se trouvant en position interne, répondant à la formule (I) dans laquelle R1 et R2 désignent, indépendamment l'un de l'autre, un reste alkyle linéaire ayant 1 à 17 atomes de carbone, sous réserve que la somme des atomes de carbone des deux restes soit de 5 à 17, R3 désigne un reste alkyle linéaire ou ramifié, ayant 1 à 12 atomes de carbone, et n est compris entre 1 et 20. Ces produits auxiliaires sont facilement biodégradables, très faiblement moussants et sont remarquables par le fait qu'ils présentent un faible point de solidification.
EP93912771A 1992-06-01 1993-05-24 Procede de deshydratation de suspensions de matieres solides finement divisees Withdrawn EP0642650A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4218050 1992-06-01
DE4218050A DE4218050A1 (de) 1992-06-01 1992-06-01 Verfahren zur Entwässerung von feinteiligen Feststoffsuspensionen
PCT/EP1993/001297 WO1993024798A1 (fr) 1992-06-01 1993-05-24 Procede de deshydratation de suspensions de matieres solides finement divisees

Publications (1)

Publication Number Publication Date
EP0642650A1 true EP0642650A1 (fr) 1995-03-15

Family

ID=6460155

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93912771A Withdrawn EP0642650A1 (fr) 1992-06-01 1993-05-24 Procede de deshydratation de suspensions de matieres solides finement divisees

Country Status (7)

Country Link
US (1) US5545332A (fr)
EP (1) EP0642650A1 (fr)
CA (1) CA2137134A1 (fr)
DE (1) DE4218050A1 (fr)
FI (1) FI945643A7 (fr)
WO (1) WO1993024798A1 (fr)
ZA (1) ZA933797B (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19962886A1 (de) * 1999-12-24 2001-07-05 Cognis Deutschland Gmbh Tensidgranulate mit verbesserter Auflösegeschwindigkeit
DE19962883A1 (de) * 1999-12-24 2001-07-12 Cognis Deutschland Gmbh Waschmitteltabletten
DE19962859A1 (de) * 1999-12-24 2001-07-12 Cognis Deutschland Gmbh Feste Waschmittel
DE19962885A1 (de) * 1999-12-24 2001-07-05 Cognis Deutschland Gmbh Wasch- und Reinigungsmittelformkörper mit verbesserten Zerfallseigenschaften
US6797180B2 (en) * 2002-05-01 2004-09-28 Ge Betz, Inc. Dewatering sand with surfactants
US20080260744A1 (en) * 2002-09-09 2008-10-23 Omeros Corporation G protein coupled receptors and uses thereof
DE102007027371A1 (de) * 2007-06-11 2008-12-18 Cognis Oleochemicals Gmbh Verfahren zur Herstellung einer Verbindung aufweisend mindestens eine Ester-Gruppe
WO2011032253A1 (fr) 2009-09-15 2011-03-24 Suncor Energy Inc. Procédé de séchage de résidus fins mûrs de sables pétrolifères
AU2010295189B2 (en) 2009-09-15 2014-03-27 Suncor Energy Inc. Process for flocculating and dewatering oil sand mature fine tailings
US9068776B2 (en) 2009-10-30 2015-06-30 Suncor Energy Inc. Depositing and farming methods for drying oil sand mature fine tailings
FR2964883B1 (fr) * 2010-09-16 2013-04-26 Lafarge Sa Procede d'acceleration et/ou d'augmentation du drainage d'eau d'un amas de granulats
IN2012DE02211A (fr) * 2012-07-17 2015-09-25 Gen Electric

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2266954A (en) * 1939-08-26 1941-12-23 American Cyanamid Co Wetting agent in settling of oe pulps
DE3723323C2 (de) * 1987-07-15 1998-03-12 Henkel Kgaa Hydroxy-Mischether, Verfahren zu deren Herstellung sowie deren Verwendung
DE3918274A1 (de) * 1989-06-05 1990-12-06 Henkel Kgaa Verwendung von hydroxymischethern als hilfsmittel fuer die feststoffentwaesserung
DE4019174A1 (de) * 1990-06-15 1992-01-02 Henkel Kgaa Hilfsmittel bei der filtration und/oder entwaesserung von mineral- und kohlesuspensionen
DE4028026A1 (de) * 1990-09-04 1992-03-05 Henkel Kgaa Verwendung von glycerinethern als hilfsmittel fuer die feststoffentwaesserung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9324798A1 *

Also Published As

Publication number Publication date
CA2137134A1 (fr) 1993-12-02
FI945643A0 (fi) 1994-11-30
FI945643L (fi) 1994-11-30
DE4218050A1 (de) 1993-12-02
ZA933797B (en) 1993-12-01
WO1993024798A1 (fr) 1993-12-09
FI945643A7 (fi) 1994-11-30
US5545332A (en) 1996-08-13

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19941122

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE SE

17Q First examination report despatched

Effective date: 19950425

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19971202