GB807590A - Method for the preparation of organic salts of the rare earths, with good solubility in water, which possess an inhibitory action on blood coagulation - Google Patents

Method for the preparation of organic salts of the rare earths, with good solubility in water, which possess an inhibitory action on blood coagulation

Info

Publication number
GB807590A
GB807590A GB3563956A GB3563956A GB807590A GB 807590 A GB807590 A GB 807590A GB 3563956 A GB3563956 A GB 3563956A GB 3563956 A GB3563956 A GB 3563956A GB 807590 A GB807590 A GB 807590A
Authority
GB
United Kingdom
Prior art keywords
rare earth
earth metal
didymium
preparation
possess
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.)
Expired
Application number
GB3563956A
Inventor
Hans Kreis
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.)
WILHELM PETRIK
Original Assignee
WILHELM PETRIK
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 WILHELM PETRIK filed Critical WILHELM PETRIK
Priority to GB3563956A priority Critical patent/GB807590A/en
Publication of GB807590A publication Critical patent/GB807590A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/41—Preparation of salts of carboxylic acids
    • C07C51/412—Preparation of salts of carboxylic acids by conversion of the acids, their salts, esters or anhydrides with the same carboxylic acid part

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

The invention comprises rare earth metal laevulinates and the preparation thereof by reacting in solution laevulinic acid with an inorganic alkaline rare earth metal compound. The inorganic alkaline rare earth metal compound may be "didymium," neodymium, praseodymium, lanthanum or cerium carbonate or hydroxide. The process is preferably carried out by adding laevulinic acid to an aqueous solution of the inorganic alkaline rare earth metal laevulinate, e.g. in the case of adding laevulinic acid to aqueous "didymium" carbonate and then boiling for approximately 2 hours, the pH of approximately 6 may be obtained by adding carbonic acid or didymium carbonate. The rare earth metal laevulinates may be isolated from the resulting solutions by evaporation to dryness. In the examples "didymium," lanthanum and cerium laevulinares are prepared.
GB3563956A 1956-11-21 1956-11-21 Method for the preparation of organic salts of the rare earths, with good solubility in water, which possess an inhibitory action on blood coagulation Expired GB807590A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3563956A GB807590A (en) 1956-11-21 1956-11-21 Method for the preparation of organic salts of the rare earths, with good solubility in water, which possess an inhibitory action on blood coagulation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3563956A GB807590A (en) 1956-11-21 1956-11-21 Method for the preparation of organic salts of the rare earths, with good solubility in water, which possess an inhibitory action on blood coagulation

Publications (1)

Publication Number Publication Date
GB807590A true GB807590A (en) 1959-01-21

Family

ID=10379957

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3563956A Expired GB807590A (en) 1956-11-21 1956-11-21 Method for the preparation of organic salts of the rare earths, with good solubility in water, which possess an inhibitory action on blood coagulation

Country Status (1)

Country Link
GB (1) GB807590A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0564081A2 (en) * 1992-02-28 1993-10-06 Sentrachem Limited Production of an organic salt of a rare earth metal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0564081A2 (en) * 1992-02-28 1993-10-06 Sentrachem Limited Production of an organic salt of a rare earth metal
EP0564081A3 (en) * 1992-02-28 1993-11-18 Sentrachem Ltd Production of an organic salt of a rare earth metal

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