GB1405150A - Process for the production of dense soda - Google Patents

Process for the production of dense soda

Info

Publication number
GB1405150A
GB1405150A GB4963572A GB4963572A GB1405150A GB 1405150 A GB1405150 A GB 1405150A GB 4963572 A GB4963572 A GB 4963572A GB 4963572 A GB4963572 A GB 4963572A GB 1405150 A GB1405150 A GB 1405150A
Authority
GB
United Kingdom
Prior art keywords
soda
mass
sodium bicarbonate
weight
water 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
GB4963572A
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.)
Chemiebau Dr A Zieren GmbH and KG
Original Assignee
Chemiebau Dr A Zieren GmbH and KG
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 Chemiebau Dr A Zieren GmbH and KG filed Critical Chemiebau Dr A Zieren GmbH and KG
Publication of GB1405150A publication Critical patent/GB1405150A/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
    • C01D7/35—Varying the content of water of crystallisation or the specific gravity
    • C01D7/37—Densifying sodium carbonate
    • 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
    • C01D7/12—Preparation of carbonates from bicarbonates or bicarbonate-containing product
    • C01D7/123—Preparation of carbonates from bicarbonates or bicarbonate-containing product by thermal decomposition of solids in the absence of a liquid medium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

1405150 Sodium carbonate CHEMIEBAU DR A ZIEREN GmbH & CO KG 27 Oct 1972 [30 Oct 1971] 49635/72 Heading C1A Dense soda having a bulk density of from 0À9 to 1À5 g./cm.<SP>3</SP> is made by (1) compressing between rollers a mass of crude moist sodium bicarbonate precipitated from an ammonia soda process and obtained after separation from its mother liquor, the crude moist sodium bicarbonate either itself having a water content of below 12% by weight or, if it has an initial water content of 12% by weight or more, having been mixed with sufficient essentially waterfree soda to provide the mass with a water content of below 12% by weight, and the compressing being sufficient to increase the bulk density of the mass to from 1À2 to 2 g./cm.<SP>3</SP> and (2) calcining the compressed mass at a temperature of from 140‹ to 250‹ C. directly to dense soda. The water-free soda, which is mixed with the sodium bicarbonate, may be obtained from the dense soda product or it may be a middledensity or light soda. The compressed product, optionally after comminution may be screened and only that portion with a particle size of 0À5-30 mm. calcined. The remainder may be compressed again with more crude sodium bicarbonate.
GB4963572A 1971-10-30 1972-10-27 Process for the production of dense soda Expired GB1405150A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712154214 DE2154214C3 (en) 1971-10-30 1971-10-30 Process for the production of dense soda

Publications (1)

Publication Number Publication Date
GB1405150A true GB1405150A (en) 1975-09-03

Family

ID=5823856

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4963572A Expired GB1405150A (en) 1971-10-30 1972-10-27 Process for the production of dense soda

Country Status (7)

Country Link
JP (1) JPS4851896A (en)
BE (1) BE790594A (en)
DE (1) DE2154214C3 (en)
FR (1) FR2157971B1 (en)
GB (1) GB1405150A (en)
IT (1) IT969873B (en)
NL (1) NL7214675A (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR322022A (en) * 1902-06-11 1903-01-24 Hooker Ayerst Henham Improvements made and relating to the transformation of baking soda into soda ash
FR2073219A1 (en) * 1969-11-27 1971-10-01 Roder Carol Dense sodium carbonate - prepared directly from crude bicarbonate

Also Published As

Publication number Publication date
JPS4851896A (en) 1973-07-20
FR2157971A1 (en) 1973-06-08
DE2154214C3 (en) 1978-09-14
FR2157971B1 (en) 1976-04-23
DE2154214B2 (en) 1978-01-19
BE790594A (en) 1973-02-15
NL7214675A (en) 1973-05-02
IT969873B (en) 1974-04-10
DE2154214A1 (en) 1973-06-20

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee