GB342942A - Improvements in or relating to the crystallisation of salts - Google Patents

Improvements in or relating to the crystallisation of salts

Info

Publication number
GB342942A
GB342942A GB8839/30A GB883930A GB342942A GB 342942 A GB342942 A GB 342942A GB 8839/30 A GB8839/30 A GB 8839/30A GB 883930 A GB883930 A GB 883930A GB 342942 A GB342942 A GB 342942A
Authority
GB
United Kingdom
Prior art keywords
circulation
salts
pump
crystallisation
relating
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
GB8839/30A
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.)
Sulzer Escher Wyss GmbH
Original Assignee
Escher Wyss Maschinenfabriken 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 Escher Wyss Maschinenfabriken AG filed Critical Escher Wyss Maschinenfabriken AG
Publication of GB342942A publication Critical patent/GB342942A/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
    • B01D9/0018—Evaporation of components of the mixture to be separated
    • B01D9/0031—Evaporation of components of the mixture to be separated by heating

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

<PICT:0342942/III/1> In crystallizing salts such as ammonium sulphate, sodium chloride, potassium chloride and the like from solution by evaporation in a calandria-type evaporator 1, small crystals which escape from the main circulation 3 are returned by a secondary circulation 4 through a pipe 5 in which is inserted a pump 6. Fully grown crystals are removed through a valve 7. Mechanical means may be provided for keeping the heating surfaces free from incrustation, baffles may be provided to assist the circulation, and the pump circulation may be replaced by thermo-circulation.
GB8839/30A 1929-03-21 1930-03-19 Improvements in or relating to the crystallisation of salts Expired GB342942A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE342942X 1929-03-21

Publications (1)

Publication Number Publication Date
GB342942A true GB342942A (en) 1931-02-12

Family

ID=6242741

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8839/30A Expired GB342942A (en) 1929-03-21 1930-03-19 Improvements in or relating to the crystallisation of salts

Country Status (2)

Country Link
BE (1) BE368807A (en)
GB (1) GB342942A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2687585A1 (en) * 1992-02-26 1993-08-27 Iris Gie IMPROVEMENTS IN CRYSTALLIZATION EQUIPMENT BY EVAPORATION.
FR2687586A1 (en) * 1992-02-26 1993-08-27 Iris Gie IMPROVED EVAPORATION CRYSTALLIZATION APPARATUS.
FR2695837A1 (en) * 1992-09-24 1994-03-25 Fcb Continuous evaporation crystallization apparatus.

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2687585A1 (en) * 1992-02-26 1993-08-27 Iris Gie IMPROVEMENTS IN CRYSTALLIZATION EQUIPMENT BY EVAPORATION.
FR2687586A1 (en) * 1992-02-26 1993-08-27 Iris Gie IMPROVED EVAPORATION CRYSTALLIZATION APPARATUS.
EP0558387A1 (en) * 1992-02-26 1993-09-01 Groupement D'interet Economique Iris Improvements in apparatuses for crystallization by evaporation
EP0558386A1 (en) * 1992-02-26 1993-09-01 Groupement D'interet Economique Iris Improved apparatus for crystallization by evaporation
FR2695837A1 (en) * 1992-09-24 1994-03-25 Fcb Continuous evaporation crystallization apparatus.

Also Published As

Publication number Publication date
BE368807A (en)

Similar Documents

Publication Publication Date Title
GB1113580A (en) Separation of crystals from solutions,by evaporation of solvent
GB431812A (en) Improvements in crystallization
GB342942A (en) Improvements in or relating to the crystallisation of salts
GB460834A (en) Improvements in or relating to apparatus for accelerated crystallisation
GB464040A (en) Improvements in or relating to the manufacture of potassium sulphate
GB437652A (en) Improvements in or relating to the production of potassium sulphate
GB331674A (en) Process o? producing sulphates containing little or no water of crystallisation
GB648903A (en) Improved process for separating sodium chloride and potassium chloride
GB384142A (en) Improvements in the production of double salts of calcium nitrate
GB351845A (en) Process for the production of ammonium carnallite or potassium carnallite
FR750945A (en) Process for manufacturing nitrates by the action of nitrous vapors on alsace potash salts and sodium chloride
GB441586A (en) Process of producing crystallized ammonium nitrate with utilization of the reaction heat for the evaporation of water
US2129813A (en) Production of anhydrous sodium sulphate
SU62998A1 (en) The method of producing ammonium sulfate
GB482096A (en) Improvements in or relating to the production of crystals
GB159815A (en) Process of crystallization and apparatus therefor
GB393956A (en) Improvements in or relating to priming compositions
GB450987A (en) Process for the production of solid magnesium sulphate monohydrate
GB460281A (en) Improvements in or relating to the production of potassium sulphate
GB423795A (en) Processes for the treatment of waters
GB447176A (en) Improvements relating to rustproofing compositions
SU51940A1 (en) Method for producing aluminum fluoride and cryolitized alumina from alunite and fluorspar
GB474518A (en) Improvements in or relating to cleansing agents
SU762908A1 (en) Method of condensing secondary vapour in crystallizing substances from solutions
GB380813A (en) Crystalline anhydrous citric acid and method of making same