GB1208416A - Crystallization - Google Patents

Crystallization

Info

Publication number
GB1208416A
GB1208416A GB4891866A GB4891866A GB1208416A GB 1208416 A GB1208416 A GB 1208416A GB 4891866 A GB4891866 A GB 4891866A GB 4891866 A GB4891866 A GB 4891866A GB 1208416 A GB1208416 A GB 1208416A
Authority
GB
United Kingdom
Prior art keywords
crystallization
sodium carbonate
dissolved
water
sodium sulphate
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
GB4891866A
Inventor
George John Melder
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.)
Struthers Scientific and International Corp
Original Assignee
Struthers Scientific and International Corp
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 Struthers Scientific and International Corp filed Critical Struthers Scientific and International Corp
Priority to GB4891866A priority Critical patent/GB1208416A/en
Publication of GB1208416A publication Critical patent/GB1208416A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/005—Selection of auxiliary, e.g. for control of crystallisation nuclei, of crystal growth, of adherence to walls; Arrangements for introduction thereof
    • 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
    • C01D7/38—Preparation in the form of granules, pieces or other shaped products
    • C01D7/40—Influencing the crystallisation process

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)

Abstract

1,208,416. Crystallization. STRUTHERS SCIENTIFIC & INTERNATIONAL CORP. 31 Oct., 1967 [1 Nov., 1966], No. 48918/66. Heading C1A. Sodium carbonate monohydrate is crystallized from its aqueous solution in the form of hexagonal columns, which are as long as they are wide, by adding sufficient sodium sulphate to provide a SO 4 <SP>2-</SP> concentration at the start of crystallization of approximately 0À4% by weight. In the example sodium carbonate is dissolved in water at 60‹ C. and sodium sulphate is dissolved in by stirring. The saturated solution is heated to evaporate some water. A slurry is thus produced from which the sodium carbonate monohydrate crystals are filtered. -
GB4891866A 1966-11-01 1966-11-01 Crystallization Expired GB1208416A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4891866A GB1208416A (en) 1966-11-01 1966-11-01 Crystallization

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4891866A GB1208416A (en) 1966-11-01 1966-11-01 Crystallization

Publications (1)

Publication Number Publication Date
GB1208416A true GB1208416A (en) 1970-10-14

Family

ID=10450439

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4891866A Expired GB1208416A (en) 1966-11-01 1966-11-01 Crystallization

Country Status (1)

Country Link
GB (1) GB1208416A (en)

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Legal Events

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