MX9604937A - Process and device for recovering amines and use of residues obtainable thereby. - Google Patents

Process and device for recovering amines and use of residues obtainable thereby.

Info

Publication number
MX9604937A
MX9604937A MX9604937A MX9604937A MX9604937A MX 9604937 A MX9604937 A MX 9604937A MX 9604937 A MX9604937 A MX 9604937A MX 9604937 A MX9604937 A MX 9604937A MX 9604937 A MX9604937 A MX 9604937A
Authority
MX
Mexico
Prior art keywords
amine
amines
flows
distillation
solid
Prior art date
Application number
MX9604937A
Other languages
Spanish (es)
Other versions
MXPA96004937A (en
Inventor
Eberhard Giebeler
Original Assignee
Eberhard Giebeler
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 Eberhard Giebeler filed Critical Eberhard Giebeler
Priority claimed from PCT/DE1995/000595 external-priority patent/WO1995031430A1/en
Publication of MXPA96004937A publication Critical patent/MXPA96004937A/en
Publication of MX9604937A publication Critical patent/MX9604937A/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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses

Landscapes

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

Abstract

The invention relates to a process for recovering amines from acid amine salt solutions by the addition of bases and evaporating the solution at a pH of 11 to 13 in a kneading drier until a useful solid is obtained as the distillation residue and a device for separating sludges and suspensions into a solid and a plurality of liquid fractions separated according to their boiling point. The low-water-content amine phase separated out by distillation is dehydrated with calcium oxide or potassium hydroxide and then separated into pure amine fractions by rectification. The process described makes it possible to utilise all the secondary flows and completely recycle the amines and the absorption medium (sulphuric acid). The flows for the recycling process are amine-charged washing acids from absorbers obtained from the cleaning of amine-containing exhaust gases obtained, produced for instance in the cold box process for hardening core sand in foundries.
MX9604937A 1995-05-03 1995-05-03 Process and device for recovering amines and use of residues obtainable thereby. MX9604937A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4416571.4 1994-05-11
PCT/DE1995/000595 WO1995031430A1 (en) 1994-05-11 1995-05-03 Process and device for recovering amines and use of residues obtainable thereby

Publications (2)

Publication Number Publication Date
MXPA96004937A MXPA96004937A (en) 1998-02-01
MX9604937A true MX9604937A (en) 1998-02-28

Family

ID=39165027

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9604937A MX9604937A (en) 1995-05-03 1995-05-03 Process and device for recovering amines and use of residues obtainable thereby.

Country Status (1)

Country Link
MX (1) MX9604937A (en)

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