BR8700978A - Processo e aparelho para espessamento de uma pasta de lama vermelha derivada de minerio de bauxita ou de outra pasta do tipo pseudo-plastica contendo particulas - Google Patents

Processo e aparelho para espessamento de uma pasta de lama vermelha derivada de minerio de bauxita ou de outra pasta do tipo pseudo-plastica contendo particulas

Info

Publication number
BR8700978A
BR8700978A BR8700978A BR8700978A BR8700978A BR 8700978 A BR8700978 A BR 8700978A BR 8700978 A BR8700978 A BR 8700978A BR 8700978 A BR8700978 A BR 8700978A BR 8700978 A BR8700978 A BR 8700978A
Authority
BR
Brazil
Prior art keywords
paste
bauxite
mines
thickening
pseudo
Prior art date
Application number
BR8700978A
Other languages
English (en)
Inventor
Peter Francis Bagatto
Donald Lawrence Puxley
Original Assignee
Alcan Int Ltd
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 Alcan Int Ltd filed Critical Alcan Int Ltd
Publication of BR8700978A publication Critical patent/BR8700978A/pt

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/0018—Separation of suspended solid particles from liquids by sedimentation provided with a pump mounted in or on a settling tank
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/01—Separation of suspended solid particles from liquids by sedimentation using flocculating agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/02—Settling tanks with single outlets for the separated liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B01D21/2405—Feed mechanisms for settling tanks
    • B01D21/2411—Feed mechanisms for settling tanks having a tangential inlet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B01D21/245—Discharge mechanisms for the sediments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B01D21/2488—Feed or discharge mechanisms for settling tanks bringing about a partial recirculation of the liquid, e.g. for introducing chemical aids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/30—Control equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/30—Control equipment
    • B01D21/34—Controlling the feed distribution; Controlling the liquid level ; Control of process parameters
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/04—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
    • C01F7/06—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom by treating aluminous minerals or waste-like raw materials with alkali hydroxide, e.g. leaching of bauxite according to the Bayer process
    • C01F7/0646—Separation of the insoluble residue, e.g. of red mud

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Treatment Of Sludge (AREA)
BR8700978A 1986-02-28 1987-02-27 Processo e aparelho para espessamento de uma pasta de lama vermelha derivada de minerio de bauxita ou de outra pasta do tipo pseudo-plastica contendo particulas BR8700978A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA000502948A CA1286480C (en) 1986-02-28 1986-02-28 Method of and apparatus for thickening red muds derived from bauxite and similar slurries

Publications (1)

Publication Number Publication Date
BR8700978A true BR8700978A (pt) 1987-12-22

Family

ID=4132577

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8700978A BR8700978A (pt) 1986-02-28 1987-02-27 Processo e aparelho para espessamento de uma pasta de lama vermelha derivada de minerio de bauxita ou de outra pasta do tipo pseudo-plastica contendo particulas

Country Status (4)

Country Link
US (1) US4830507A (pt)
BR (1) BR8700978A (pt)
CA (1) CA1286480C (pt)
FR (1) FR2595053B1 (pt)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4911553A (en) * 1986-11-28 1990-03-27 House Food Industrial Co., Ltd. Method and apparatus for feeding solid-liquid mixture
DE69002045T2 (de) * 1989-10-13 1993-09-30 Alcan Int Ltd Verfahren und Vorrichtung zum Dekantieren von Suspensionen.
US5080803A (en) * 1989-10-13 1992-01-14 Alcan International Limited Process for decantation of suspensions
US5389250A (en) * 1991-09-26 1995-02-14 Baker Hughes Incorporated Self diluting feedwell for thickener dilution
AT399141B (de) * 1993-08-13 1995-03-27 Anlagenbau Franz Zierler Verfahren und vorrichtung zum abscheiden von sand aus mit sand und organischen stoffen beladenem abwasser
US5718510A (en) * 1995-02-28 1998-02-17 Inco Limited Paste production and storage apparatus
US6231768B1 (en) * 1999-01-19 2001-05-15 Nalco Chemical Company Rheology modification of settled solids in mineral processing
US6340033B2 (en) 1999-03-15 2002-01-22 Alcan International Limited Transfer of shear-thinning slurries
US6758978B1 (en) 1999-08-06 2004-07-06 Gl&V Management Hungary Kft. Deep bed thickener/clarifiers with enhanced liquid removal
UA78727C2 (en) * 2001-11-09 2007-04-25 Alcan Int Ltd Settler and method for decanting mineral slurries
US6966985B2 (en) * 2002-03-05 2005-11-22 Gl&V Management Hungary Kft Self-diluting feedwell including a vertical education mechanism
MX2008002136A (es) * 2005-08-23 2008-04-29 Alcan Int Ltd Aparato para produccion, retiro y transferenca de suspension altamente viscosa.
FR2922121A1 (fr) * 2007-10-12 2009-04-17 Charles Rolland Alimentation d'un separateur de phase.
CA2714766C (en) * 2009-09-14 2014-07-15 Syncrude Canada Ltd. Feedwell for a gravity separation vessel
EP2686458A4 (en) 2011-03-18 2015-04-15 Orbite Aluminae Inc METHODS FOR RECOVERING RARE EARTH ELEMENTS FROM ALUMINUM-CONTAINING MATERIALS
EP3141621A1 (en) 2011-05-04 2017-03-15 Orbite Aluminae Inc. Processes for recovering rare earth elements from various ores
CN103842296B (zh) 2011-06-03 2016-08-24 奥贝特科技有限公司 用于制备赤铁矿的方法
WO2013005101A2 (en) * 2011-07-06 2013-01-10 Cognis Ip Management Gmbh Method for controlling solids/liquid decant unit operations and systems
JP2014526431A (ja) 2011-09-16 2014-10-06 オーバイト アルミナ インコーポレイテッド アルミナ及び様々な他の生成物の調製プロセス
EP2802675B1 (en) 2012-01-10 2020-03-11 Orbite Aluminae Inc. Processes for treating red mud
CA2903512C (en) 2012-03-29 2017-12-05 Orbite Technologies Inc. Processes for treating fly ashes
US9290828B2 (en) 2012-07-12 2016-03-22 Orbite Technologies Inc. Processes for preparing titanium oxide and various other products
WO2014047728A1 (en) 2012-09-26 2014-04-03 Orbite Aluminae Inc. Processes for preparing alumina and magnesium chloride by hc1 leaching of various materials
EP2920114A4 (en) 2012-11-14 2016-03-02 Orbite Aluminae Inc PROCESS FOR PURIFYING ALUMINUM IONS
EP2886178A1 (en) 2013-12-20 2015-06-24 Rio Tinto Alcan International Limited Process and installation for producing alumina trihydrate by alkaline digestion of bauxite ore
EP2886177A1 (en) 2013-12-20 2015-06-24 Rio Tinto Alcan International Limited Settler and method for separating clarified liquid from mineral slurries
CN110482621B (zh) * 2019-09-04 2020-07-03 新昌县梅维斯环保有限公司 基于污水药物净化处理的污水处理池结构

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2268475A (en) * 1939-09-30 1941-12-30 Dorr Co Inc Flocculation
US2365293A (en) * 1941-04-25 1944-12-19 Worthington Pump & Mach Corp Water treating apparatus
US2322719A (en) * 1942-03-06 1943-06-22 Dorr Co Apparatus for the treatment of slurries or liquid solids mixtures
US2413375A (en) * 1943-05-22 1946-12-31 Darwin Kirschman H Method of and apparatus for treating liquids
US2473297A (en) * 1945-04-03 1949-06-14 Henry C Parker Apparatus for clarifying liquors
CH396858A (de) * 1959-05-15 1965-08-15 Ciba Geigy Verfahren zum Reinigen von Sole
US3212672A (en) * 1962-08-20 1965-10-19 Elgin Softener Inc Dry diatomaceous earth feeder
US3300047A (en) * 1966-05-05 1967-01-24 Hirsch Abraham Adler Truly vertical flow upflow tank with complete volumetric transit for water and wastetreatment
US3544081A (en) * 1968-03-15 1970-12-01 Hans A Eckhardt Apparatus for mixing flowable materials
CH494052A (de) * 1969-05-19 1970-07-31 Yorkshire Dyeware & Chem Co Verfahren zur Ausscheidung von festen teilchenförmigen Materialien aus ihrer Mischung mit einem flüssigen Träger sowie Vorrichtung zur Ausführung des Verfahrens
US3650950A (en) * 1969-08-20 1972-03-21 Robert W White Material shearing mixer and aerator
DE7138603U (de) * 1971-10-12 1972-06-15 Passavant Werke Vorrichtung zur mechanisch-chemischen Wasseraufbereitung und Abwasserbehandlung
AU502936B2 (en) * 1975-01-24 1979-08-16 Alcan Research And Development Limited Flocculant control in sedimentation
DE2624506A1 (de) * 1976-06-01 1977-12-15 Raschka Kg Dipl Ing Georg Schlammeindicker
IT1109426B (it) * 1978-07-31 1985-12-16 Eurallumina Spa Procedimento per lo smaltimento dei residui di lavorazione della bauxite e loro contenimento in bacini di colmata
US4302328A (en) * 1978-09-25 1981-11-24 Envirotech Corporation Geothermal brine treatment
US4226714A (en) * 1978-12-27 1980-10-07 The Anaconda Company Thickener control system
US4328094A (en) * 1980-02-08 1982-05-04 Peck Albert C Apparatus and process for the beneficiation, washing, elutriation and cleaning of particulate solids and recovery of chemical values
US4397561A (en) * 1981-05-11 1983-08-09 William A. Strong Slurry production system
US4603000A (en) * 1984-09-05 1986-07-29 Fabcon Incorporated Process and apparatus for flocculating and clarifying a solid-liquid slurry

Also Published As

Publication number Publication date
FR2595053A1 (fr) 1987-09-04
US4830507A (en) 1989-05-16
AU590682B2 (en) 1989-11-09
FR2595053B1 (fr) 1991-09-13
AU6954287A (en) 1987-09-03
CA1286480C (en) 1991-07-23

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Legal Events

Date Code Title Description
FF Decision: intention to grant
KD Notifcation of receipt (letter patent)
FG Letter patent granted
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 27/02/2002

B15K Others concerning applications: alteration of classification

Ipc: B01D 21/00 (2006.01), B01D 21/01 (2006.0