SU55553A1 - The method of obtaining silica gel - Google Patents
The method of obtaining silica gelInfo
- Publication number
- SU55553A1 SU55553A1 SU19723A SU55553DA SU55553A1 SU 55553 A1 SU55553 A1 SU 55553A1 SU 19723 A SU19723 A SU 19723A SU 55553D A SU55553D A SU 55553DA SU 55553 A1 SU55553 A1 SU 55553A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- silica gel
- gel
- obtaining silica
- drying
- washing
- Prior art date
Links
Landscapes
- Silicon Compounds (AREA)
Description
Изобретение касаетс способа получени силикагел путем взаимодействи растворимого стекла с минеральными кислотами.The invention relates to a process for the preparation of silica gel by the interaction of soluble glass with mineral acids.
Известно, что различна степень коагул ции зол , наступление зрелости и старение гел в практике его получени обусловливают те или иные свойства получаемого продукта и сильно вли ют на ход его дальнейшей обработки.It is known that different degrees of coagulation of the ashes, the onset of maturity and aging of the gel in the practice of its preparation determine one or another properties of the resulting product and strongly influence the course of its further processing.
Насколько сложна промывка гел , видно из описанного в советском патенте № 13079 способа, согласно которому процесс промывки продолжаетс трое суток. В германском патенте № 478312 описываетс способ получени силикагел , согласно которому промывка и дробление гел производ тс на особых вальцах .How complicated is the washing of the gel can be seen from the method described in Soviet patent No. 13079, according to which the washing process lasts for three days. German Patent No. 478312 describes a method for producing silica gel, according to which washing and crushing of a gel is carried out on a special roller.
Услови и методика сушки гел , указанные в литературе, также весьма различны. Обычно сушка продолжаетс 8-10 дней при температуре 30-35°, после чего гель подвергают повторной сушке при температуре от 200 до 250°.The conditions and methods of drying the gel, as indicated in the literature, are also quite different. Typically, drying lasts 8-10 days at a temperature of 30-35 °, after which the gel is subjected to repeated drying at a temperature of from 200 to 250 °.
Известно, что в процессе сушки часто происход т изменени в структуре гел . Точно так же предстал ет р д трудностей получить гель, бладаюш.ий малым удельным весом.It is known that changes in the gel structure often occur during the drying process. Similarly, it presents a number of difficulties to obtain a gel, a low specific gravity.
Указанные моменты устран ютс предлагаемым, согласно насто щему изобретению, способом получени гел кремнекислоты. Сущность предлагаемого способа заключаетс в том, что гель кремнекислоты получают в форме маленьких однородных таблеток в процессе действи сол ной кислоты на силикат натри . Эти таблетки образуютс путем введени через узкие капилл ры отдельных капель силиката натри в сол ную кислоту.These moments are eliminated by the method according to the present invention for preparing silica gel. The essence of the proposed method lies in the fact that silica gel is obtained in the form of small homogeneous tablets during the action of hydrochloric acid on sodium silicate. These tablets are formed by introducing individual drops of sodium silicate into hydrochloric acid through narrow capillaries.
Промывка полученных таблеток гел осуществл етс весьма успешно в течение 2-3 час. Сушка производитс при температуре 60-70° в течение 1-2 час. При более высокой температуре сушка ускор етс .Washing the obtained gel tablets is carried out very successfully for 2-3 hours. Drying is carried out at a temperature of 60-70 ° for 1-2 hours. At higher temperatures, drying is accelerated.
Предмет изобретени .The subject matter of the invention.
Способ получени силикагел взаимодействием растворимого стекла с минеральными кислотами, отличающийс тем, что, в цел х получени гел кремневой кислоты в форме однородных таблеток, раствор силиката натри ввод т в кислоту через. капилл р отдельными капл ми.A method of producing silica gel by the interaction of soluble glass with mineral acids, characterized in that, in order to obtain a gel of silicic acid in the form of homogeneous tablets, a solution of sodium silicate is introduced into the acid through. capillary individual drops.
rfn. арт. «Сов. Печ.. Зак. № 7532-500rfn. art. “Owls. Pec .. Zack. 7532-500
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU55553T | 1938-11-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU55553A1 true SU55553A1 (en) | 1938-11-30 |
Family
ID=52744811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU19723A SU55553A1 (en) | 1938-11-04 | 1938-11-04 | The method of obtaining silica gel |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU55553A1 (en) |
-
1938
- 1938-11-04 SU SU19723A patent/SU55553A1/en active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB442526A (en) | Improved glassware and process of making the same | |
| SU55553A1 (en) | The method of obtaining silica gel | |
| US2092163A (en) | Alkaline silica gel | |
| DE369062C (en) | Process for the production of siliceous alkali using calcined infusoric earth | |
| GB474475A (en) | Improvements in or relating to the making of pectin-containing extracts | |
| SU367203A1 (en) | METHOD OF OBTAINING CELLULOSE | |
| GB311979A (en) | Process for the production of a sugar solution | |
| SU104960A1 (en) | Method of using beet pulp as a jelling agent for the production of marmalade | |
| SU99287A1 (en) | Method of production of marmalade | |
| SU487186A1 (en) | Pulp Production Method | |
| GB237685A (en) | Improvements in, or relating to, the preparation of alkali celluloses | |
| SU118557A1 (en) | The method of obtaining 5,5-ethyl- (1-methyl-butyl) thiobarbituric acid and its sodium salt (sodium thiopentol) labeled by isotopic exchange | |
| GB302734A (en) | Method of preliminary treatment of materials used in the preparation of pectine | |
| SU104801A1 (en) | The method of obtaining food products for workers working with radioactive isotopes | |
| SU51040A1 (en) | The method of producing benzanthrone | |
| SU67626A1 (en) | Method for quantitative determination of cellulose | |
| SU1389A1 (en) | The method of obtaining a solution of silicate | |
| GB381979A (en) | An improved process for the treatment of frosted or coloured glass | |
| GB752661A (en) | Improved confection and method of manufacture | |
| Prasad et al. | Viscosity of stannic phosphate gels during setting | |
| DE359711C (en) | Process for the production of protein-rich masses from beet pulp | |
| SU50579A1 (en) | Method of preparing base exchange silicate to soften water | |
| SU120080A2 (en) | Method for producing defoliant | |
| SU127127A1 (en) | Cooking method | |
| DE594243C (en) | Spark plug with electrode cemented into the insulating body |