IT1038597B - Procedimento di cristallizzazione di idrati di soda caustica median te raffreddamento di una liscivia caustica - Google Patents

Procedimento di cristallizzazione di idrati di soda caustica median te raffreddamento di una liscivia caustica

Info

Publication number
IT1038597B
IT1038597B IT23902/75A IT2390275A IT1038597B IT 1038597 B IT1038597 B IT 1038597B IT 23902/75 A IT23902/75 A IT 23902/75A IT 2390275 A IT2390275 A IT 2390275A IT 1038597 B IT1038597 B IT 1038597B
Authority
IT
Italy
Prior art keywords
caustic
hydrates
crystallization
cooling
lye
Prior art date
Application number
IT23902/75A
Other languages
English (en)
Italian (it)
Original Assignee
Solvay
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 Solvay filed Critical Solvay
Application granted granted Critical
Publication of IT1038597B publication Critical patent/IT1038597B/it

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
    • B01D9/005—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
    • C01D1/00—Oxides or hydroxides of sodium, potassium or alkali metals in general
    • C01D1/04—Hydroxides
    • C01D1/28—Purification; Separation
    • C01D1/30—Purification; Separation by crystallisation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/085—Heat exchange elements made from metals or metal alloys from copper or copper alloys
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/087—Heat exchange elements made from metals or metal alloys from nickel or nickel alloys

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Chemically Coating (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • ing And Chemical Polishing (AREA)
IT23902/75A 1974-07-09 1975-05-30 Procedimento di cristallizzazione di idrati di soda caustica median te raffreddamento di una liscivia caustica IT1038597B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE146359A BE817421A (fr) 1974-07-09 1974-07-09 Procede de cristallisation d'hydrates de soude caustique par refroidissement d'une lessive caustique.

Publications (1)

Publication Number Publication Date
IT1038597B true IT1038597B (it) 1979-11-30

Family

ID=3842680

Family Applications (1)

Application Number Title Priority Date Filing Date
IT23902/75A IT1038597B (it) 1974-07-09 1975-05-30 Procedimento di cristallizzazione di idrati di soda caustica median te raffreddamento di una liscivia caustica

Country Status (6)

Country Link
BE (1) BE817421A (enExample)
DE (1) DE2526967A1 (enExample)
ES (1) ES438692A1 (enExample)
FR (1) FR2277770A1 (enExample)
IT (1) IT1038597B (enExample)
NL (1) NL7508191A (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2421359A1 (fr) * 1978-03-31 1979-10-26 Fives Cail Babcock Procede de protection des surfaces d'une chaudiere de recuperation en contact avec un fluide chauffant, et chaudiere obtenue par l'application du procede
US7037886B2 (en) 2000-06-01 2006-05-02 Ecolab Inc. Method for manufacturing a molded detergent composition
US6730653B1 (en) 2000-06-01 2004-05-04 Ecolab Inc. Method for manufacturing a molded detergent composition

Also Published As

Publication number Publication date
DE2526967A1 (de) 1976-01-29
ES438692A1 (es) 1977-04-01
FR2277770B1 (enExample) 1977-07-22
FR2277770A1 (fr) 1976-02-06
BE817421A (fr) 1974-11-04
NL7508191A (nl) 1976-01-13

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