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FR2061759A1 - - Google Patents

Info

Publication number
FR2061759A1
FR2061759A1 FR7033531A FR7033531A FR2061759A1 FR 2061759 A1 FR2061759 A1 FR 2061759A1 FR 7033531 A FR7033531 A FR 7033531A FR 7033531 A FR7033531 A FR 7033531A FR 2061759 A1 FR2061759 A1 FR 2061759A1
Authority
FR
France
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.)
Granted
Application number
FR7033531A
Other versions
FR2061759B1 (fr
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.)
Dorr Oliver Inc
Original Assignee
Dorr Oliver Inc
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 Dorr Oliver Inc filed Critical Dorr Oliver Inc
Publication of FR2061759A1 publication Critical patent/FR2061759A1/fr
Application granted granted Critical
Publication of FR2061759B1 publication Critical patent/FR2061759B1/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • B01D21/0093—Mechanisms for taking out of action one or more units of a multi-unit settling mechanism
    • 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
    • B01D21/04—Settling tanks with single outlets for the separated liquid with moving scrapers
    • B01D21/06—Settling tanks with single outlets for the separated liquid with moving scrapers with rotating scrapers
    • 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
    • B01D21/18—Construction of the scrapers or the driving mechanisms for settling tanks
    • 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
    • B01D21/2427—The feed or discharge opening located at a distant position from the side walls
    • 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

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)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
FR7033531A 1969-09-17 1970-09-16 Expired FR2061759B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US85873169A 1969-09-17 1969-09-17

Publications (2)

Publication Number Publication Date
FR2061759A1 true FR2061759A1 (fr) 1971-06-25
FR2061759B1 FR2061759B1 (fr) 1974-10-11

Family

ID=25329034

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7033531A Expired FR2061759B1 (fr) 1969-09-17 1970-09-16

Country Status (6)

Country Link
AU (1) AU1975770A (fr)
CA (1) CA976488A (fr)
DE (1) DE2045652A1 (fr)
FR (1) FR2061759B1 (fr)
GB (1) GB1298976A (fr)
NL (1) NL7013604A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN101759214B (zh) * 2008-12-25 2011-12-21 中国铝业股份有限公司 一种铝酸钠浆液过滤分离方法
CN117772762B (zh) * 2023-12-19 2025-02-07 中国石油大学(华东) 大宗工业固废赤泥多相流反应精馏脱碱固碳方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1747759A (en) * 1925-02-11 1930-02-18 Dorr Co Process for the manufacture of sodium aluminate
FR1438659A (fr) * 1970-03-23 1966-05-13 Union Corp Ltd épaississeur perfectionné pour bouillies, limons, boues et matières similaires

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1747759A (en) * 1925-02-11 1930-02-18 Dorr Co Process for the manufacture of sodium aluminate
FR1438659A (fr) * 1970-03-23 1966-05-13 Union Corp Ltd épaississeur perfectionné pour bouillies, limons, boues et matières similaires

Also Published As

Publication number Publication date
NL7013604A (fr) 1971-03-19
GB1298976A (en) 1972-12-06
AU1975770A (en) 1972-03-16
FR2061759B1 (fr) 1974-10-11
DE2045652A1 (de) 1971-05-27
CA976488A (en) 1975-10-21

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Legal Events

Date Code Title Description
ST Notification of lapse