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RU95109864A - Method for regeneration of acid in anhydrous form of aqueous solution - Google Patents

Method for regeneration of acid in anhydrous form of aqueous solution

Info

Publication number
RU95109864A
RU95109864A RU95109864/04A RU95109864A RU95109864A RU 95109864 A RU95109864 A RU 95109864A RU 95109864/04 A RU95109864/04 A RU 95109864/04A RU 95109864 A RU95109864 A RU 95109864A RU 95109864 A RU95109864 A RU 95109864A
Authority
RU
Russia
Prior art keywords
aqueous solution
acid
anhydrous form
regeneration
additional agent
Prior art date
Application number
RU95109864/04A
Other languages
Russian (ru)
Other versions
RU2147575C1 (en
Inventor
Ивар Хоммельтофт Свен
Dk]
Original Assignee
Хальдор Топсеэ А/С (DK)
Хальдор Топсеэ А/С
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 Хальдор Топсеэ А/С (DK), Хальдор Топсеэ А/С filed Critical Хальдор Топсеэ А/С (DK)
Publication of RU95109864A publication Critical patent/RU95109864A/en
Application granted granted Critical
Publication of RU2147575C1 publication Critical patent/RU2147575C1/en

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
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/584—Recycling of catalysts

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)

Abstract

FIELD: chemical technology. SUBSTANCE: proposed method involves concentration of aqueous solution and distillation acid in its anhydrous form. The process is carried out with the help of additional agent. Weak base being used as said additional agent is added into aqueous solution. EFFECT: improved efficiency of the method.

Claims (1)

Объектом изобретения является способ регенерации кислоты в безводной форме из водного раствора, включающий стадии концентрирования водного раствора и отгонки кислоты в безводной форме с использованием вспомогательного агента, в качестве которого используют слабое основание, которое добавляют к водному раствору.The object of the invention is a method for the regeneration of acid in anhydrous form from an aqueous solution, comprising the steps of concentrating the aqueous solution and distilling off the acid in anhydrous form using an auxiliary agent, which is used as a weak base, which is added to the aqueous solution.
RU95109864A 1994-06-13 1995-06-09 Method of regeneration of perfluorinated sulfoacid as anhydrous form from aqueous solution RU2147575C1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DK199400673A DK173113B1 (en) 1994-06-13 1994-06-13 Method for recovery of a perfluorated sulphonic acid in anhydrous form from an aqueous solution as well of use of the method
DK0673/94 1994-06-13
DK0673/4 1994-06-13

Publications (2)

Publication Number Publication Date
RU95109864A true RU95109864A (en) 1997-05-10
RU2147575C1 RU2147575C1 (en) 2000-04-20

Family

ID=8096232

Family Applications (1)

Application Number Title Priority Date Filing Date
RU95109864A RU2147575C1 (en) 1994-06-13 1995-06-09 Method of regeneration of perfluorinated sulfoacid as anhydrous form from aqueous solution

Country Status (2)

Country Link
DK (1) DK173113B1 (en)
RU (1) RU2147575C1 (en)

Also Published As

Publication number Publication date
DK173113B1 (en) 2000-01-31
DK67394A (en) 1995-12-14
RU2147575C1 (en) 2000-04-20

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Legal Events

Date Code Title Description
MM4A The patent is invalid due to non-payment of fees

Effective date: 20060610