Patenton — panteon of patents

(19)

RU

(11)

2 124 474

(13)

C1

(51)

IPC

(21) (22)

Application

97108522/25, 1997-06-05

(22)

Actual filing date

1997-06-05

(45)

Published

1999-01-10

(72)

Inventor

Pesternikov G.N.Maksjutin A.S.Sviridov S.I.Puchkov S.P.Obukhova V.B.Busygin V.M.

(73)

Holder

Tovarishchestvo S Ogranichennoj Otvetstvennost'Ju Tsentr

METHOD OF PREPARING SILICON DIOXIDE HYDROGEL Russian patent published in 1999 - IPC

Abstract RU 2124474 C1

FIELD: binding agents. SUBSTANCE: invention relates to binding agents finding use when manufacturing precision-molding shell molds, in papermaking, as dyes, and as water-limiting material for waterproofing. Silicon dioxide hydrogel is prepared by ion-exchange conversion of sodium silicate into polysilicic acid, which is stabilized by sodium-containing solution and resultant silicon dioxide hydrogel is thermally treated with live steam at temperature up to 100 C and atmosphere pressure for 2.5-3 hr. Before heat treatment, silicon dioxide hydrogel can be concentrated to silicon dioxide content 8-10 wt %. EFFECT: optimized process parameters. 2 cl, 2 tbl, 3 ex

Similar patents RU2124474C1

Title Year Author Number
METHOD OF PREPARING CONCENTRATED HYDROSOL OF SILICON OXIDE 2008
  • Karaseva Irina Pavlovna
  • Pukhacheva Ehleonora Nikolaevna
  • Saljakhova Miljausha Akramovna
  • Fatkhutdinov Ravil' Khilalovich
 RU2380315C1
SODIUM POLYSILICATE CRYSTAL HYDRATES AND METHODS FOR THEIR PREPARATION 1997
  • Pesternikov G.N.
  • Maksjutin A.S.
  • Sviridov S.I.
  • Puchkov S.P.
  • Obukhova V.B.
 RU2118642C1
METHOD OF PREPARING SODIUM POLYSILICATES 1997
  • Pesternikov G.N.
  • Maksjutin A.S.
  • Puchkov S.P.
  • Obukhova V.B.
 RU2124475C1
METHOD OF PRODUCING SILICA-CONTAINING BINDER 2009
  • Khalukhaev Gelani Asmanovich
  • Kondratenko Aleksandr Nikolaevich
  • Krivoborodov Jurij Romanovich
 RU2408633C1
COMPOSITION FOR MANUFACTURING HEAT-INSULATING MATERIAL 1997
  • Pesternikov G.N.
  • Maksjutin A.S.
  • Sviridov S.I.
  • Sudarev Ju.I.
  • Obukhova V.B.
  • Khozin V.G.
  • Samojlov Ju.E.
 RU2117647C1
METHOD OF PRODUCING SILICA HYDROSOLS 0
  • Gyulbekyan Zhan Khorenovich
  • Balayan Gamlet Gurgenovich
  • Babayan Stepan Grigorevich
  • Karapetyan Ashot Arshavirovich
  • Martirosyan Rudolf Samvelovich
 SU1452789A1
SILICON-CONTAINING BINDER PREPARATION METHOD 2002
  • Rykov P.V.
  • Kondratenko A.N.
  • Krivoborodov Ju.R.
 RU2236374C2
METHOD OF PREPARING ALUMINIUM OXIDE HYDROSOL 1997
  • Pesternikov G.N.
  • Maksjutin A.S.
  • Sviridov S.I.
  • Puchkov S.P.
  • Obukhova V.B.
 RU2115624C1
METHOD OF PREPARING HIGH MODULE TYPE Y ZEOLITE 1996
  • Pavlov M.L.
  • Levinbuk M.I.
  • Savin E.M.
  • Smirnov V.K.
  • Videneev G.A.
  • Surkova L.V.
 RU2090502C1
METHOD OF AMMONIA OXIDATION USING OXIDE CATALYST OF CELLULAR STRUCTURE AND METHOD OF CATALYST PREPARATION 1997
RU2127223C1

RU 2 124 474 C1

Authors

Pesternikov G.N.

Maksjutin A.S.

Sviridov S.I.

Puchkov S.P.

Obukhova V.B.

Busygin V.M.

Dates

1999-01-10—Published

1997-06-05—Filed

read Similar patents