GB595989A - Improvements in crystallizers - Google Patents

Improvements in crystallizers

Info

Publication number
GB595989A
GB595989A GB17835/45A GB1783545A GB595989A GB 595989 A GB595989 A GB 595989A GB 17835/45 A GB17835/45 A GB 17835/45A GB 1783545 A GB1783545 A GB 1783545A GB 595989 A GB595989 A GB 595989A
Authority
GB
United Kingdom
Prior art keywords
tubs
crystals
vat
cooling liquid
solution
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
GB17835/45A
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.)
COMPTOIR TEXTILES ARTIFICIELS
Comptoir des Textiles Artificiels SA
Original Assignee
COMPTOIR TEXTILES ARTIFICIELS
Comptoir des Textiles Artificiels SA
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 COMPTOIR TEXTILES ARTIFICIELS, Comptoir des Textiles Artificiels SA filed Critical COMPTOIR TEXTILES ARTIFICIELS
Publication of GB595989A publication Critical patent/GB595989A/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

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Paper (AREA)

Abstract

<PICT:0595989/III/1> A crystalliser for hydrated salts comprises an elongated vat through which a cooling liquid flows from one end to the other, an endless rail above the vat from which rail tubs containing the crystallisable solution are suspended and travel along the rail in the cooling liquid in a direction opposite to that of its flow, and means for filling the tubs with solution, discharging mother liquor after crystallisation, dipping the tubs into hot water to loosen the crystals, and discharging the crystals. Tubs 3 loaded at A with solution then pass through cooling vat 1 in direction f the cooling liquid flowing in direction F. At B the tubs are partially turned over to decant mother liquor and then pass through the hot water tank 6 to loosen the crystals. At C the tubs are inverted to remove the crystals, and then return to A for reloading.ALSO:A crystallizer is described suitable for the crystallization of acid or neutral solutions of sodium sulphate from viscose spinning baths, the crystals obtained from neutral solutions being used in the manufacture of viscose sponges, while acid solutions or spinning baths are crystallized to lower the sodium sulphate concentration for re-use of the bath, with the sulphate as by-product.
GB17835/45A 1944-11-03 1945-07-12 Improvements in crystallizers Expired GB595989A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR935389T 1944-11-03

Publications (1)

Publication Number Publication Date
GB595989A true GB595989A (en) 1947-12-24

Family

ID=9456764

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17835/45A Expired GB595989A (en) 1944-11-03 1945-07-12 Improvements in crystallizers

Country Status (3)

Country Link
US (1) US2551162A (en)
FR (1) FR935389A (en)
GB (1) GB595989A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2551162A (en) * 1944-11-03 1951-05-01 Comptoir Textiles Artificiels Apparatus for crystallizing

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115487529B (en) * 2022-09-15 2023-09-12 山东金宜善新材料有限公司 Circulation crystallization equipment is used in tetrabromobisphenol A production

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB122507A (en) * 1918-02-06 1919-01-30 Thomas William Staine Hutchins Apparatus for Facilitating the Obtaining of Crystals from Solutions.
US1930607A (en) * 1930-09-20 1933-10-17 Jeffrey Mfg Co Trolley conveyer load carrying hanger
US2148552A (en) * 1934-05-12 1939-02-28 Albert H Hannon Barrel plating machine
FR935389A (en) * 1944-11-03 1948-06-17 Comptoir Textiles Artificiels Semi-continuous crystallizer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2551162A (en) * 1944-11-03 1951-05-01 Comptoir Textiles Artificiels Apparatus for crystallizing

Also Published As

Publication number Publication date
US2551162A (en) 1951-05-01
FR935389A (en) 1948-06-17

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