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WO2016013027A3 - A novel process for recovery of calcium hypochlorite - Google Patents

A novel process for recovery of calcium hypochlorite Download PDF

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Publication number
WO2016013027A3
WO2016013027A3 PCT/IN2015/000303 IN2015000303W WO2016013027A3 WO 2016013027 A3 WO2016013027 A3 WO 2016013027A3 IN 2015000303 W IN2015000303 W IN 2015000303W WO 2016013027 A3 WO2016013027 A3 WO 2016013027A3
Authority
WO
WIPO (PCT)
Prior art keywords
calcium hypochlorite
recovery
water stream
production process
novel process
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.)
Ceased
Application number
PCT/IN2015/000303
Other languages
French (fr)
Other versions
WO2016013027A2 (en
Inventor
Sanjay Jain
Vikram DHUMAL
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.)
Geist Research Private Ltd
Original Assignee
Geist Research Private 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 Geist Research Private Ltd filed Critical Geist Research Private Ltd
Publication of WO2016013027A2 publication Critical patent/WO2016013027A2/en
Publication of WO2016013027A3 publication Critical patent/WO2016013027A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D3/00—Halides of sodium, potassium or alkali metals in general
    • C01D3/04—Chlorides
    • C01D3/06—Preparation by working up brines; seawater or spent lyes
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B11/00—Oxides or oxyacids of halogens; Salts thereof
    • C01B11/04—Hypochlorous acid
    • C01B11/06—Hypochlorites
    • C01B11/064—Hypochlorites of alkaline-earth metals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

The present invention provides a novel process to recover a high strength Calcium Hypochlorite from aqueous waste water stream by selective crystallization of sodium chloride and calcium hypochlorite by changing process parameters such as pressure, temperature, mixing etc. The main advantage of the present invention is related to production process for recovery of Calcium Hypochlorite from the mother water stream/ aqueous waste water stream generated from Calcium Hypochlorite production process thus improving the overall yield of the production process.
PCT/IN2015/000303 2014-07-24 2015-07-29 A novel process for recovery of calcium hypochlorite Ceased WO2016013027A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN2396/MUM/2014 2014-07-24
IN2396MU2014 2014-07-24

Publications (2)

Publication Number Publication Date
WO2016013027A2 WO2016013027A2 (en) 2016-01-28
WO2016013027A3 true WO2016013027A3 (en) 2016-03-17

Family

ID=55163917

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2015/000303 Ceased WO2016013027A2 (en) 2014-07-24 2015-07-29 A novel process for recovery of calcium hypochlorite

Country Status (1)

Country Link
WO (1) WO2016013027A2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3895099A (en) * 1972-05-30 1975-07-15 Olin Corp Process for manufacture of calcium hydrochlorite
US4196184A (en) * 1972-05-30 1980-04-01 Olin Corporation Lime recovery process
US4468377A (en) * 1983-03-07 1984-08-28 Olin Corporation Continuous process for the manufacture of calcium hypochlorite

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3895099A (en) * 1972-05-30 1975-07-15 Olin Corp Process for manufacture of calcium hydrochlorite
US4196184A (en) * 1972-05-30 1980-04-01 Olin Corporation Lime recovery process
US4468377A (en) * 1983-03-07 1984-08-28 Olin Corporation Continuous process for the manufacture of calcium hypochlorite

Also Published As

Publication number Publication date
WO2016013027A2 (en) 2016-01-28

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