JPS5390194A - Concentrating method of aqueous sodium sulfide solution - Google Patents

Concentrating method of aqueous sodium sulfide solution

Info

Publication number
JPS5390194A
JPS5390194A JP490377A JP490377A JPS5390194A JP S5390194 A JPS5390194 A JP S5390194A JP 490377 A JP490377 A JP 490377A JP 490377 A JP490377 A JP 490377A JP S5390194 A JPS5390194 A JP S5390194A
Authority
JP
Japan
Prior art keywords
sodium sulfide
aqueous sodium
sulfide solution
concentrating method
soln
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.)
Granted
Application number
JP490377A
Other languages
Japanese (ja)
Other versions
JPS5743522B2 (en
Inventor
Yasunori Mazaki
Shigenobu Hisatomi
Kiyoshi Fujiwara
Seiji Nomura
Yukio Inoue
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP490377A priority Critical patent/JPS5390194A/en
Publication of JPS5390194A publication Critical patent/JPS5390194A/en
Publication of JPS5743522B2 publication Critical patent/JPS5743522B2/ja
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/22—Alkali metal sulfides or polysulfides
    • C01B17/38—Dehydration

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

PURPOSE: To concentrate an aq. sodium sulfide soln. without forming any scaling, to carry out a continuous operation, by supplying a soln. with a concn. of more than 45%, when an aq. sodium sulfide soln. is concentrated using a centrifugal thin film evaporator.
COPYRIGHT: (C)1978,JPO&Japio
JP490377A 1977-01-21 1977-01-21 Concentrating method of aqueous sodium sulfide solution Granted JPS5390194A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP490377A JPS5390194A (en) 1977-01-21 1977-01-21 Concentrating method of aqueous sodium sulfide solution

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP490377A JPS5390194A (en) 1977-01-21 1977-01-21 Concentrating method of aqueous sodium sulfide solution

Publications (2)

Publication Number Publication Date
JPS5390194A true JPS5390194A (en) 1978-08-08
JPS5743522B2 JPS5743522B2 (en) 1982-09-16

Family

ID=11596608

Family Applications (1)

Application Number Title Priority Date Filing Date
JP490377A Granted JPS5390194A (en) 1977-01-21 1977-01-21 Concentrating method of aqueous sodium sulfide solution

Country Status (1)

Country Link
JP (1) JPS5390194A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59144489A (en) * 1983-02-07 1984-08-18 松下電器産業株式会社 Water drain device of washer
JPS61188590U (en) * 1985-05-13 1986-11-25
JPH01317492A (en) * 1989-04-19 1989-12-22 Toshiba Corp Washing agent supplying device for washing machine or the like

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2786518A (en) * 1953-03-27 1957-03-26 Rosenblads Patenter Ab Evaporation of sulphite waste liquor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2786518A (en) * 1953-03-27 1957-03-26 Rosenblads Patenter Ab Evaporation of sulphite waste liquor

Also Published As

Publication number Publication date
JPS5743522B2 (en) 1982-09-16

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