EP0114291A3 - Mittel zur Trennung gelöster und/oder ungelöster Stoffe aufgrund unterschiedlicher Auftriebsdichten bzw. Dichten vermittels der Lösungen echter Metawolframate - Google Patents

Mittel zur Trennung gelöster und/oder ungelöster Stoffe aufgrund unterschiedlicher Auftriebsdichten bzw. Dichten vermittels der Lösungen echter Metawolframate Download PDF

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Publication number
EP0114291A3
EP0114291A3 EP83112474A EP83112474A EP0114291A3 EP 0114291 A3 EP0114291 A3 EP 0114291A3 EP 83112474 A EP83112474 A EP 83112474A EP 83112474 A EP83112474 A EP 83112474A EP 0114291 A3 EP0114291 A3 EP 0114291A3
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EP
European Patent Office
Prior art keywords
solutions
metatungstates
densities
pure
medium
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.)
Ceased
Application number
EP83112474A
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English (en)
French (fr)
Other versions
EP0114291A2 (de
Inventor
Bodo Dr. Plewinsky
Rainer Dipl.-Chem. Kamps
Klaus Dr. Wetz
Manfred Dipl.-Chem. Miehe
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.)
Individual
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Individual
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
Priority claimed from DE3302691A external-priority patent/DE3302691C2/de
Priority claimed from DE19833305517 external-priority patent/DE3305517C2/de
Application filed by Individual filed Critical Individual
Publication of EP0114291A2 publication Critical patent/EP0114291A2/de
Publication of EP0114291A3 publication Critical patent/EP0114291A3/de
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—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
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
    • B03B5/28—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation
    • B03B5/30—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation using heavy liquids or suspensions
    • B03B5/44—Application of particular media therefor
    • B03B5/442—Application of particular media therefor composition of heavy media
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—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
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
    • B03B5/28—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation
    • B03B5/30—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation using heavy liquids or suspensions
    • B03B5/32—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation using heavy liquids or suspensions using centrifugal force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—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
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D3/00—Differential sedimentation

Landscapes

  • Centrifugal Separators (AREA)
  • Mechanical Sealing (AREA)
  • Extraction Or Liquid Replacement (AREA)

Abstract

Es wird ein Mittel zur Dichtegradienten-Zentrifugation in Form von Alkali-, Ammonium- oder Erdalkalimetawolframa­ ten, gegebenenfalls unter Zusatz von niedermolekularen Elektrolyten, geschaffen, das Dichten bis zu 3,1 g.cm⁻³ ermöglicht, niedrige Viskosität bei hohen Konzentrationen aufweist, neutral und chemisch inert ist.
Es wird weiterhin ein Mittel zur Trennung von wasserun­ löslichen Feststoffgemischen unterschiedlicher Dichte geschaffen. Als Trennmittel finden Lösungen von echten Metawolframaten Anwendung. Zur Erhöhung der Dichte können den Metawolframat-Lösungen auch Schwerstoffe, wie Wolframcarbid, geeigneter Korngröße unter Ausbilden einer Suspension zugefügt werden.
EP83112474A 1983-01-24 1983-12-12 Mittel zur Trennung gelöster und/oder ungelöster Stoffe aufgrund unterschiedlicher Auftriebsdichten bzw. Dichten vermittels der Lösungen echter Metawolframate Ceased EP0114291A3 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3302691A DE3302691C2 (de) 1983-01-24 1983-01-24 Mittel für die Dichtegradienten-Zentrifugation
DE3302691 1983-01-24
DE19833305517 DE3305517C2 (de) 1983-02-14 1983-02-14 Schwerflüssigkeit
DE3305517 1983-02-14

Publications (2)

Publication Number Publication Date
EP0114291A2 EP0114291A2 (de) 1984-08-01
EP0114291A3 true EP0114291A3 (de) 1985-12-04

Family

ID=25807848

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83112474A Ceased EP0114291A3 (de) 1983-01-24 1983-12-12 Mittel zur Trennung gelöster und/oder ungelöster Stoffe aufgrund unterschiedlicher Auftriebsdichten bzw. Dichten vermittels der Lösungen echter Metawolframate

Country Status (3)

Country Link
US (1) US4557718A (de)
EP (1) EP0114291A3 (de)
AU (1) AU2367784A (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5178848A (en) * 1991-06-25 1993-01-12 Bhp-Utah International Corp. Lithium metatungstate
WO1993019849A1 (en) * 1992-04-07 1993-10-14 Central Chemical Consulting Pty. Ltd. Heavy liquid for material separations
EP0689479B1 (de) * 1993-03-18 1997-05-07 PAGENKOPF, Ingeborg Verfahren zur trennung von feststoffgemischen verschiedener dichte, trennflüssigkeit und vorrichtung zur durchführung des verfahrens
DE19733784C2 (de) * 1997-08-05 2001-08-30 Alfred Leipertz Verfahren und Vorrichtung zur Bestimmung der Verteilung der Feststoffdichte von Einzelpartikeln in einem Partikelkollektiv
US6390395B1 (en) 1998-12-16 2002-05-21 Versitech, Inc. Heavy liquids for use in separation processes
DE10016049B4 (de) * 2000-04-01 2005-10-06 Esytec Energie- Und Systemtechnik Gmbh Verfahren und Vorrichtung zur simultanen Bestimmung der Verteilungen von Feststoffdichte und Korngröße
EA012513B1 (ru) * 2004-12-14 2009-10-30 М-Ай Л.Л.С. Не содержащий твердой фазы концентрированный солевой раствор, пригодный в качестве скважинного флюида
WO2015174986A1 (en) 2014-05-15 2015-11-19 Halliburton Energy Services, Inc. Weighted well fluids
WO2016060693A1 (en) 2014-10-17 2016-04-21 Halliburton Energy Services, Inc. Thermally-stable, non-precipitating, high-density wellbore fluids
WO2016099542A1 (en) 2014-12-19 2016-06-23 Halliburton Energy Services, Inc. Colloidal dispersions (sols) for weighting agents in fluids
US10262763B2 (en) * 2016-09-19 2019-04-16 Radium Incorporated Systems, devices, and/or methods for managing radiation shielding
CA3110092A1 (en) 2018-09-13 2020-03-19 Shell Internationale Research Maatschappij B.V. Shut-down process for the production of glycols
CN120172466A (zh) * 2025-05-21 2025-06-20 天津国安盟固利新材料科技股份有限公司 一种普适型电极材料中微粉的去除方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2456350A1 (de) * 1974-11-28 1976-06-10 Verla Pharm Verfahren und vorrichtung zur kontinuierlichen trennung von mutterkorn/getreide-gemengen
DE2748520A1 (de) * 1976-11-02 1978-05-03 Merck & Co Inc Hepatitis b-dane-teilchen
JPS54124794A (en) * 1978-03-20 1979-09-27 Sumitomo Metal Ind Method of analyzing fallen soot constituent by heavy fluid
DE2920859A1 (de) * 1978-07-03 1980-01-24 De Beers Ind Diamond Schwere fluessigkeit fuer densimetrische trennungen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3608717A (en) * 1969-07-01 1971-09-28 Brown & Williamson Tobacco Corp Method and apparatus for the liquid separation of a mixture of materials
US3862029A (en) * 1973-10-01 1975-01-21 John E Joyce Density gradient fractionator
US4111798A (en) * 1976-11-30 1978-09-05 Battelle Development Corporation Separation of solids by varying the bulk density of a fluid separating medium

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2456350A1 (de) * 1974-11-28 1976-06-10 Verla Pharm Verfahren und vorrichtung zur kontinuierlichen trennung von mutterkorn/getreide-gemengen
DE2748520A1 (de) * 1976-11-02 1978-05-03 Merck & Co Inc Hepatitis b-dane-teilchen
JPS54124794A (en) * 1978-03-20 1979-09-27 Sumitomo Metal Ind Method of analyzing fallen soot constituent by heavy fluid
DE2920859A1 (de) * 1978-07-03 1980-01-24 De Beers Ind Diamond Schwere fluessigkeit fuer densimetrische trennungen

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CHEMICAL ABSTRACTS, Band 76, Nr. 22, 29. Mai 1972, Seite 370, Nr. 132240g, Columbus, Ohio, US; H.P. STOCK u.a.: "Charge and polymerization egree of the metatungstate ion in aqueous sodium chloride solution by sedimentation equilibrium measurements with the ultracentrifuge" & KOLLOID-Z. Z. POLYM. 1971, 249 (1-2), 1148-54 *
CHEMICAL ABSTRACTS, Band 92, Nr. 25, 3. Juni 1980, Seite 273, Nr. 211342a, Columbus, Ohio, US; A.S. VORONINA u.a.: "Equilibrium centrifugation in lithium metatungstate and [tris(hydroxymethyl)amino]methane phosphotungstate density gradients" & MOL. BIOL. (Moscow) 1980, 14(1), 190-9 *

Also Published As

Publication number Publication date
EP0114291A2 (de) 1984-08-01
AU2367784A (en) 1984-07-26
US4557718A (en) 1985-12-10

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

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