GB261085A - Process and apparatus for crystallisation - Google Patents

Process and apparatus for crystallisation

Info

Publication number
GB261085A
GB261085A GB20204/25A GB2020425A GB261085A GB 261085 A GB261085 A GB 261085A GB 20204/25 A GB20204/25 A GB 20204/25A GB 2020425 A GB2020425 A GB 2020425A GB 261085 A GB261085 A GB 261085A
Authority
GB
United Kingdom
Prior art keywords
pipe
crystals
solution
vessel
crystallizing
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
GB20204/25A
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.)
Grasselli Chemical Co
Original Assignee
Grasselli Chemical Co
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 Grasselli Chemical Co filed Critical Grasselli Chemical Co
Priority to GB20204/25A priority Critical patent/GB261085A/en
Publication of GB261085A publication Critical patent/GB261085A/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
    • B01D9/0004—Crystallisation cooling by heat exchange
    • B01D9/0013—Crystallisation cooling by heat exchange by indirect heat exchange
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0036—Crystallisation on to a bed of product crystals; Seeding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/004—Fractional crystallisation; Fractionating or rectifying columns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0059—General arrangements of crystallisation plant, e.g. flow sheets

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Peptides Or Proteins (AREA)

Abstract

261,085. Marks, E. C. R., (Grasselli Chemical Co.). Aug. 11, 1925. Crystallizing. - In producing crystals of substantially uniform size, a solution is circulated from a pipe 6 upwards through a suspension of crystals in a vessel which is either conical and has an angle below 60‹, or is formed of successively wider cylindrical portions 2, 3, 4. Large crystals fall through the narrow part 2 and are removed by a pipe 7. Seed crystals are formed in the solution by supplying a supersaturated solution by a pipe 12. The solution is discharged at the upper end 4 and passes over a heating-device 3 to dissolve small crystals, and through a pipe 8 to a vessel 9 in which it may be evaporated or heated, and to which fresh concentrated or supersaturated solution is added by a pipe 10 prior to return to the pipe 6. The walls of the crystallizing vessel may be insulated, cooled, or may be warmed to prevent the rapid cooling. Crystals may be separated at the base of each of the sections in order to obtain more than one size of crystal product.
GB20204/25A 1925-08-11 1925-08-11 Process and apparatus for crystallisation Expired GB261085A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB20204/25A GB261085A (en) 1925-08-11 1925-08-11 Process and apparatus for crystallisation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB20204/25A GB261085A (en) 1925-08-11 1925-08-11 Process and apparatus for crystallisation

Publications (1)

Publication Number Publication Date
GB261085A true GB261085A (en) 1926-11-11

Family

ID=10142145

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20204/25A Expired GB261085A (en) 1925-08-11 1925-08-11 Process and apparatus for crystallisation

Country Status (1)

Country Link
GB (1) GB261085A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998003241A1 (en) * 1996-07-17 1998-01-29 Krebs Swiss, Krebs & Co. Ag Salt purification facility

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998003241A1 (en) * 1996-07-17 1998-01-29 Krebs Swiss, Krebs & Co. Ag Salt purification facility
CH690840A5 (en) * 1996-07-17 2001-02-15 Krebs Swiss Krebs & Co Ag Salt cleaning system.

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