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JPS5478399A - Production of calcium chloride solution by treatment of exhaust gas - Google Patents

Production of calcium chloride solution by treatment of exhaust gas

Info

Publication number
JPS5478399A
JPS5478399A JP14564177A JP14564177A JPS5478399A JP S5478399 A JPS5478399 A JP S5478399A JP 14564177 A JP14564177 A JP 14564177A JP 14564177 A JP14564177 A JP 14564177A JP S5478399 A JPS5478399 A JP S5478399A
Authority
JP
Japan
Prior art keywords
soln
cacl
hcl
exhaust gas
org
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
JP14564177A
Other languages
Japanese (ja)
Other versions
JPS5744606B2 (en
Inventor
Kiyoshi Imaizumi
Akio Arai
Gentaro Tsunoda
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.)
Hodogaya Chemical Co Ltd
Original Assignee
Hodogaya Chemical Co 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 Hodogaya Chemical Co Ltd filed Critical Hodogaya Chemical Co Ltd
Priority to JP14564177A priority Critical patent/JPS5478399A/en
Publication of JPS5478399A publication Critical patent/JPS5478399A/en
Publication of JPS5744606B2 publication Critical patent/JPS5744606B2/ja
Granted legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/151—Reduction of greenhouse gas [GHG] emissions, e.g. CO2

Landscapes

  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Treating Waste Gases (AREA)

Abstract

PURPOSE: To produce a CaCl2 soln. of high purity and high concn. by reacting a CaCl2 soln. which has absorbed HCl and org. matter in exhaust gas with lumpy CaCO3 and removing the org. matter in the absorbing soln. with CO2 formed by the reaction.
CONSTITUTION: Exhaust gas 1 contg. HCl and org. matter, by-products of chlorination reaction of arom. hydrocarbons such as benzene is fed to ejector 2 together with a CaCl2 soln. from reactor 4 packed with limestone. The CaCl2 soln. which has absorbed the HCl in gas 1 is supplied to reactor 4 through vapor-liquid separator 3. Unreacted HCl separated 3 is introduced into absorption tower 16 to allow the HCl to be absorbed into water 17. On the other hand, in reactor 4 the HCl contained in the CaCl2 soln. is reacted with limestone, and the org. matter in the soln. is stripped with fine bubbles of CO2 formed by the reaction and released through tower 16 together with exhaust gas of separator 3. Part of the circulating CaCl2 soln. in reactor 4 is fed to neutralization vessel 11, adjusted to pH about 7.2 with slaked lime slurry 12, and supplied to settling tank 18. The supernatant is stored in storage tank 20 as a product.
COPYRIGHT: (C)1979,JPO&Japio
JP14564177A 1977-12-06 1977-12-06 Production of calcium chloride solution by treatment of exhaust gas Granted JPS5478399A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14564177A JPS5478399A (en) 1977-12-06 1977-12-06 Production of calcium chloride solution by treatment of exhaust gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14564177A JPS5478399A (en) 1977-12-06 1977-12-06 Production of calcium chloride solution by treatment of exhaust gas

Publications (2)

Publication Number Publication Date
JPS5478399A true JPS5478399A (en) 1979-06-22
JPS5744606B2 JPS5744606B2 (en) 1982-09-22

Family

ID=15389699

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14564177A Granted JPS5478399A (en) 1977-12-06 1977-12-06 Production of calcium chloride solution by treatment of exhaust gas

Country Status (1)

Country Link
JP (1) JPS5478399A (en)

Also Published As

Publication number Publication date
JPS5744606B2 (en) 1982-09-22

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