GB1339999A - Method of producing alkali metal carbonates - Google Patents

Method of producing alkali metal carbonates

Info

Publication number
GB1339999A
GB1339999A GB5554271A GB5554271A GB1339999A GB 1339999 A GB1339999 A GB 1339999A GB 5554271 A GB5554271 A GB 5554271A GB 5554271 A GB5554271 A GB 5554271A GB 1339999 A GB1339999 A GB 1339999A
Authority
GB
United Kingdom
Prior art keywords
weight
alkali metal
crystals
metal carbonates
hydroxide
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
GB5554271A
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.)
Kali Chemie AG
Original Assignee
Kali Chemie 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
Priority claimed from DE19702060287 external-priority patent/DE2060287C3/en
Application filed by Kali Chemie AG filed Critical Kali Chemie AG
Publication of GB1339999A publication Critical patent/GB1339999A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C01D7/07—Preparation from the 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
    • C01D7/35—Varying the content of water of crystallisation or the specific gravity
    • C01D7/37—Densifying sodium carbonate

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Treating Waste Gases (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1339999 Alkali metal carbonates KALICHEMIE AG 30 Nov 1971 [8 Dec 1970 27 Aug 1971] 55542/71 Heading C1A Alkali metal carbonates are produced by adding a 10 to 75% by weight aqueous solution of the alkali metal hydroxide to a recirculating aqueous solution of the hydroxide and carbonate and the resultant solution is finely dispersed in a CO 2 containing gas at a temperature between 150 and 700‹ C. for a reaction time of 0À1 to 10 seconds whereafter the liquid and gas are separated and then the product crystals are separated from the solution. To isolate the crystals a branch stream of the liquor containing the crystals may be withdrawn and filtered, the filtrate being recombined with the main liquor stream. For the production of Na 2 CO 3 the recirculated solution preferably contains 13 to 18% by weight of Na 2 CO 3 and 8 to 14% by weight of NaOH and in the production of K 2 CO 3 the preferred concentrations are 35 to 52% by weight of K 2 CO 3 and 8 to 20% by weight of KOH. When the K 2 CO 3 concentration is >45% by weight K 2 CO 3 .1À5 H 2 O is formed while if the concentration is <45% K 2 CO 3 crystals are formed. The alkali metal carbonate crystals produced may be dried with a CO 2 containing gas to convert any hydroxide to the carbonate.
GB5554271A 1970-12-08 1971-11-30 Method of producing alkali metal carbonates Expired GB1339999A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19702060287 DE2060287C3 (en) 1970-12-08 Process for the production of sodium carbonate monohydrate
DE19712143008 DE2143008C3 (en) 1971-08-27 Process for the production of potassium carbonate

Publications (1)

Publication Number Publication Date
GB1339999A true GB1339999A (en) 1973-12-05

Family

ID=25760152

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5554271A Expired GB1339999A (en) 1970-12-08 1971-11-30 Method of producing alkali metal carbonates

Country Status (11)

Country Link
AT (1) AT307454B (en)
BE (1) BE775846A (en)
CA (1) CA964431A (en)
CH (1) CH580032A5 (en)
ES (1) ES397738A1 (en)
FR (1) FR2114957A5 (en)
GB (1) GB1339999A (en)
IT (1) IT941951B (en)
NL (1) NL7116511A (en)
NO (1) NO134044C (en)
SE (1) SE371425B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015517898A (en) * 2012-03-26 2015-06-25 ▲陽▼光▲凱▼迪新能源集▲団▼有限公司 Method for removing metal ions from rice husk using industrial exhaust gas

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015517898A (en) * 2012-03-26 2015-06-25 ▲陽▼光▲凱▼迪新能源集▲団▼有限公司 Method for removing metal ions from rice husk using industrial exhaust gas
EP2832692A4 (en) * 2012-03-26 2016-01-27 Sunshine Kaidi New Energy Group Co Ltd Method utilizing industrial flue gas for removing metal ions from rice hulls

Also Published As

Publication number Publication date
AT307454B (en) 1973-05-25
ES397738A1 (en) 1974-05-16
NO134044C (en) 1976-08-11
NL7116511A (en) 1972-06-12
NO134044B (en) 1976-05-03
SE371425B (en) 1974-11-18
IT941951B (en) 1973-03-10
FR2114957A5 (en) 1972-06-30
CA964431A (en) 1975-03-18
BE775846A (en) 1972-05-26
CH580032A5 (en) 1976-09-30

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Legal Events

Date Code Title Description
416 Proceeding under section 16 patents act 1949
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee