GB624125A - Improvements in or relating to continuous crystallisation - Google Patents

Improvements in or relating to continuous crystallisation

Info

Publication number
GB624125A
GB624125A GB1090/47A GB109047A GB624125A GB 624125 A GB624125 A GB 624125A GB 1090/47 A GB1090/47 A GB 1090/47A GB 109047 A GB109047 A GB 109047A GB 624125 A GB624125 A GB 624125A
Authority
GB
United Kingdom
Prior art keywords
vessel
pict
iii
constrictions
crystals
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
GB1090/47A
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Publication of GB624125A publication Critical patent/GB624125A/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
    • B01D9/0036—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
    • B01D9/005—Selection of auxiliary, e.g. for control of crystallisation nuclei, of crystal growth, of adherence to walls; Arrangements for introduction thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)

Abstract

<PICT:0624125/III/1> <PICT:0624125/III/2> <PICT:0624125/III/3> In a continuous crystallization, the suspension of crystals and mother liquor is passed upwards through a vessel having two or more constrictions disposed successively along the path of the ascending current, and the crystals which have grown to the desired size are removed from the bottom of the vessel. In the vessel shown in Fig. 2, the constrictions are obtained by truncated cones e, and each constriction has associated with it a deflecting cone f. In preferred forms the diameter of the vessel increases, and the constrictions have apertures of progressively increasing size, in the direction of flow of the suspension as shown in Figs. 3 and 4. When crystallization arises from chemical reaction between two solutions, one of the solutions is passed upwards and the other is injected at suitable points in the apparatus, e.g. the centres of the apertures as shown by inlet tubes i in Fig. 3.
GB1090/47A 1946-06-21 1947-01-13 Improvements in or relating to continuous crystallisation Expired GB624125A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE624125X 1946-06-21

Publications (1)

Publication Number Publication Date
GB624125A true GB624125A (en) 1949-05-27

Family

ID=3875789

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1090/47A Expired GB624125A (en) 1946-06-21 1947-01-13 Improvements in or relating to continuous crystallisation

Country Status (4)

Country Link
BE (1) BE466111A (en)
FR (1) FR947706A (en)
GB (1) GB624125A (en)
NL (1) NL132860C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3615246A (en) * 1966-12-27 1971-10-26 Ibm Steady state etching system
CN109364517A (en) * 2018-12-27 2019-02-22 昆山恒诚荣机械设备有限公司 Concentrate the agitating paddle of feeding system crystallizer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3615246A (en) * 1966-12-27 1971-10-26 Ibm Steady state etching system
CN109364517A (en) * 2018-12-27 2019-02-22 昆山恒诚荣机械设备有限公司 Concentrate the agitating paddle of feeding system crystallizer

Also Published As

Publication number Publication date
BE466111A (en)
NL132860C (en)
FR947706A (en) 1949-07-11

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