Patenton — panteon of patents

(19)

RU

(11)

2 121 966

(13)

C1

(51)

IPC

(21) (22)

Application

97112596/25, 1997-07-23

(22)

Actual filing date

1997-07-23

(45)

Published

1998-11-20

(72)

Inventor

Georgievskij S.S.Mishin V.I.Mykhov Ju.V.Koval' A.I.Tumanovskij A.A.Ulybin V.B.

(73)

Holder

Rossijskij Nauchnyj Tsentr Khimija"

METHOD OF PREPARING CARBON-14 MARKED CARBON DIOXIDE Russian patent published in 1998 - IPC

Abstract RU 2121966 C1

FIELD: chemistry, biology and medicine. SUBSTANCE: method comprises reacting carbon-14 marked barium carbonate with sodium tetrafluoroborate at 1: (1- 2) molar ratio, respectively. The method is carried out in the presence of magnesium chloride-sodium fluoride mixture at 1:(3.5-4.5) weight ratio. In this case, weight ratio of said mixture to sodium tetrafluoroborate is 1:(18-20) provided that process is carried out at 350-400 C. The present invention makes it possible to shorten process time. EFFECT: more efficient preparation method. 2 tbl

Similar patents RU2121966C1

Title Year Author Number
COMPOSITION AND METHOD FOR CARBON DIOXIDE PRODUCTION 1997
  • Georgievskij S.S.
  • Koval' A.I.
  • Tumanovskij A.A.
  • Ulybin V.B.
  • Kartashov Ju.I.
 RU2155708C2
METHOD OF PREPARING GLYCIN-2D 2000
  • Rudik P.N.
  • Burova O.N.
 RU2170725C1
METHOD FOR DETERMINATION OF CARBON DIOXIDE IN COMPONENTS FOR LIQUID ROCKET FUEL ON BASE OF DERIVATIVES OF HYDRAZINE 1996
  • Potrokhov V.K.
  • Fedorova S.A.
  • Manchenkova N.B.
 RU2105749C1
METHOD DETERMINING NITROSODIMETHYLAMINE IN WATER 1993
  • Potrokhov V.K.
  • Malinina A.M.
 RU2090864C1
METHOD OF PROXIMITY DETECTION OF HYDRAZINE IN AQUEOUS SOLUTIONS 1993
  • Potrokhov V.K.
  • Klimova N.I.
 RU2090883C1
METHOD OF DETERMINING ASYMMETRIC DIMETHYLHYDRAZINE IN SOILS, VEGETABLE MATTERS, AND WATERS 1987
  • Potrokhov V.K.
  • Klimova N.I.
 RU2106626C1
METHOD OF DETERMINING UNSYMMETRICAL DIMETHYLHYDRAZINE IN SOILS AND VEGETABLE MATERIALS 1985
  • Potrokhov V.K.
  • Malinina A.M.
  • Klimova N.I.
 RU2122198C1
METHOD OF PHOTOMETRIC DETERMINATION OF 1-METHYL-1,2-DICYCLOPROPYLCYCLOPROPANE IN SOILS AND VEGETAL MATERIALS 1993
  • Potrokhov V.K.
  • Timofeeva A.M.
 RU2086960C1
METHOD OF PREPARING 2-HYDROHEPTAFLUOROPROPANE OR MIXTURE OF 2-HYDROHEPTAFLUOROPROPANE AND OCTAFLUOROPROPANE 1998
  • Mitina I.E.
  • Trukshin I.G.
  • Barabanov V.G.
  • Andreev V.I.
 RU2134680C1
METHOD OF DETERMINING UNSYMMETRICAL DIMETHYLHYDRAZINE 1987
  • Potrokhov V.K.
  • Malinina A.M.
  • Klimova N.I.
 RU2111486C1

RU 2 121 966 C1

Authors

Georgievskij S.S.

Mishin V.I.

Mykhov Ju.V.

Koval' A.I.

Tumanovskij A.A.

Ulybin V.B.

Dates

1998-11-20—Published

1997-07-23—Filed

download Download PDF read Similar patents