FR2277770B1 - - Google Patents

Info

Publication number
FR2277770B1
FR2277770B1 FR7521498A FR7521498A FR2277770B1 FR 2277770 B1 FR2277770 B1 FR 2277770B1 FR 7521498 A FR7521498 A FR 7521498A FR 7521498 A FR7521498 A FR 7521498A FR 2277770 B1 FR2277770 B1 FR 2277770B1
Authority
FR
France
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
FR7521498A
Other languages
French (fr)
Other versions
FR2277770A1 (en
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.)
Solvay SA
Original Assignee
Solvay 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 Solvay SA filed Critical Solvay SA
Publication of FR2277770A1 publication Critical patent/FR2277770A1/en
Application granted granted Critical
Publication of FR2277770B1 publication Critical patent/FR2277770B1/fr
Granted 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
    • B01D9/005—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)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • ing And Chemical Polishing (AREA)
  • Chemically Coating (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
FR7521498A 1974-07-09 1975-07-07 Crystallisation of sodium hydroxide hydrates - by heat exchange using copper nickel or chromium (coated) heat exchanger tubes Granted FR2277770A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE146359A BE817421A (en) 1974-07-09 1974-07-09 PROCESS FOR THE CRYSTALLIZATION OF CAUSTIC SODIUM HYDRATES BY COOLING A CAUSTIC LAUNDRY.

Publications (2)

Publication Number Publication Date
FR2277770A1 FR2277770A1 (en) 1976-02-06
FR2277770B1 true FR2277770B1 (en) 1977-07-22

Family

ID=3842680

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7521498A Granted FR2277770A1 (en) 1974-07-09 1975-07-07 Crystallisation of sodium hydroxide hydrates - by heat exchange using copper nickel or chromium (coated) heat exchanger tubes

Country Status (6)

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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2421359A1 (en) * 1978-03-31 1979-10-26 Fives Cail Babcock Heat recovery boiler - has nickel coating to prevent attack by corrosive heating medium
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
ES438692A1 (en) 1977-04-01
NL7508191A (en) 1976-01-13
DE2526967A1 (en) 1976-01-29
FR2277770A1 (en) 1976-02-06
IT1038597B (en) 1979-11-30
BE817421A (en) 1974-11-04

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Legal Events

Date Code Title Description
ST Notification of lapse