Patenton — panteon of patents

(19)

RU

(11)

2 071 818

(13)

C1

(51)

IPC

(21) (22)

Application

92003667/26, 1992-11-05

(22)

Actual filing date

1992-11-05

(45)

Published

1997-01-20

(72)

Inventor

Rozanov S.A.Kondratjuk V.V.Poljakova V.A.

(73)

Holder

Belgorodskij Filial Vsesojuznogo Nauchno-Issledovatel'Skogo Vitaminnogo Instituta

METHOD OF CONCENTRATING AQUEOUS SOLUTION OF MEDICAL VITAMIN C Russian patent published in 1997 - IPC

Abstract RU 2071818 C1

FIELD: pharmaceutical technics. SUBSTANCE: solution is concentrated using membrane distillation as environmentally pure procedure. Process is carried out in membrane modulus of flat-frame type with vertically arranged membranes made of tetrafluoroethylene copolymer on propylene substrate at temperature 55-60 C, while permeate temperature is 13-20 C and linear velocity of stream 0.05- 0.055 m/s. EFFECT: improved procedure. 1 dwg

Similar patents RU2071818C1

Title Year Author Number
METHOD FOR DETERMINING PERCENTAGE OF SEVITOMIC ACID IN CRYSTALLINE PREPARATION 1992
  • Korablev I.V.
  • Stal'Nov P.I.
  • Limarov A.I.
  • Moskvin M.D.
 RU2072512C1
PROCESS FOR PREPARING 4-HALOGEN-3-METHYL-3-OXYBUTENE 1992
  • Tsvetkova T.M.
  • Kononuchenko L.A.
  • Garanzha M.V.
  • Romanenko V.P.
  • Vysochin A.P.
 RU2047591C1
METHOD OF REPROCESSING NON-REACTED PRODUCTS IN THE PROCESS OF VITAMIN B SYNTHESIS 1991
  • Belova V.M.
  • Rzhevskij N.K.
  • Kirshbaum G.N.
  • Kirsanov A.T.
  • Levtrinskij A.I.
  • Vostretsov V.P.
  • Sergeev V.N.
  • Savicheva I.N.
 RU2006496C1
METHOD FOR STABILIZING CONCENTRATION OF ASCORBIC ACID 1990
  • Stal'Nov P.I.
  • Chepchurov Ja.I.
  • Moskvin M.D.
  • Limarov A.I.
  • Savenko V.A.
  • Pashchinskij N.P.
  • Jashchenko P.G.
 RU2027164C1
METHOD OF MEASURING ASCORBIC ACID AQUEOUS SOLUTION CONCENTRATION 1991
  • Korablev I.V.
  • Stal'Nov P.I.
  • Chepchurov Ja.I.
  • Moskvin M.D.
  • Limarov A.I.
  • Kirsanov A.T.
  • Jashchenko P.G.
 RU2006838C1
METHOD FOR OBTAINING 5-ACETOXY-3-BROMOPENTANONE-2 0
  • Litvak Miroslav Mikhajlovich
 SU1659397A1
COMPOSITION FOR OBTAINING AMALGAM 1989
  • Chuev V.P.
  • Karal'Nik D.M.
  • Grigor'Eva T.F.
  • Tsvetkov V.V.
  • Tuchkov P.N.
  • Ivanov E.Ju.
  • Fedonenko A.I.
 SU1785095A1
METHOD AND DEVICE FOR CONCENTRATING WATER SOLUTIONS OF BIOLOGY-ACTIVE AGENTS 2006
  • Odinets Aleksej Glebovich
 RU2323036C2
METHOD FOR PRODUCTION OF WATER SOLUBLE BENZOFLAVIN 1988
  • Chuev V.P.
  • Rudakova I.P.
  • Machekhina I.Ju.
  • Tsetlin L.G.
  • Kurganov B.I.
 SU1638845A1
METHOD OF SEPARATION AND CONCENTRATION OF ORGANIC SUBSTANCES FROM LIQUID MIXTURES AND DEVICE FOR ITS REALISATION 2012
  • Borisov Il'Ja Leonidovich
  • Vasilevskij Vladimir Pavlovich
  • Volkov Vladimir Vasil'Evich
  • Volkov Aleksej Vladimirovich
 RU2532518C2

RU 2 071 818 C1

Authors

Rozanov S.A.

Kondratjuk V.V.

Poljakova V.A.

Dates

1997-01-20—Published

1992-11-05—Filed

read Similar patents