GB1000984A - Method of recovering the content of alkali metal compounds from alkali-rich dust obtained when producing cement clinker and apparatus for performing the same - Google Patents

Method of recovering the content of alkali metal compounds from alkali-rich dust obtained when producing cement clinker and apparatus for performing the same

Info

Publication number
GB1000984A
GB1000984A GB40915/61A GB4091561A GB1000984A GB 1000984 A GB1000984 A GB 1000984A GB 40915/61 A GB40915/61 A GB 40915/61A GB 4091561 A GB4091561 A GB 4091561A GB 1000984 A GB1000984 A GB 1000984A
Authority
GB
United Kingdom
Prior art keywords
alkali
alkali metal
metal compounds
recovering
content
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.)
Expired
Application number
GB40915/61A
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.)
ThyssenKrupp Industrial Solutions AG
Original Assignee
Polysius AG
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 Polysius AG filed Critical Polysius AG
Publication of GB1000984A publication Critical patent/GB1000984A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
    • B07B9/02—Combinations of similar or different apparatus for separating solids from solids using gas currents
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D1/00—Oxides or hydroxides of sodium, potassium or alkali metals in general
    • C01D1/04—Hydroxides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D7/00—Carbonates of sodium, potassium or alkali metals in general
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00—Hydraulic cements
    • C04B7/36—Manufacture of hydraulic cements in general
    • C04B7/60—Methods for eliminating alkali metals or compounds thereof, e.g. from the raw materials or during the burning process; methods for eliminating other harmful components
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency
    • Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Public Health (AREA)
  • Toxicology (AREA)
  • Structural Engineering (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

Alkali metal compounds are recovered from the alkali-rich dust obtained from a cement kilning plant operating with exhaust gas temperatures of from 100-300 DEG C., the dust being subjected to a wet treatment to form a solution of alkali metal hydroxides and possibly carbonates, the solution is then evaporated utilizing waste heat from the kilning process, e.g. the air from the clinker cooling equipment. Specification 946,872 is referred to.
GB40915/61A 1960-11-18 1961-11-15 Method of recovering the content of alkali metal compounds from alkali-rich dust obtained when producing cement clinker and apparatus for performing the same Expired GB1000984A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK0042183 1960-11-18

Publications (1)

Publication Number Publication Date
GB1000984A true GB1000984A (en) 1965-08-11

Family

ID=7222666

Family Applications (1)

Application Number Title Priority Date Filing Date
GB40915/61A Expired GB1000984A (en) 1960-11-18 1961-11-15 Method of recovering the content of alkali metal compounds from alkali-rich dust obtained when producing cement clinker and apparatus for performing the same

Country Status (5)

Country Link
AT (1) AT231886B (en)
CH (1) CH425743A (en)
DK (1) DK105012C (en)
GB (1) GB1000984A (en)
NL (1) NL121390C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5100633A (en) * 1985-11-07 1992-03-31 Passamaquoddy Technology Limited Partnership Method for scrubbing pollutants from an exhaust gas stream
US4708855A (en) * 1985-11-07 1987-11-24 Passanaquoddy Tribe Method and system for exhaust gas stream scrubbing

Also Published As

Publication number Publication date
DK105012C (en) 1966-08-01
AT231886B (en) 1964-02-25
NL271500A (en) 1964-07-27
NL121390C (en) 1966-10-17
CH425743A (en) 1966-12-15

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