RO101604B1 - Procedeu de obtinere a silicatului de sodiu - Google Patents
Procedeu de obtinere a silicatului de sodiuInfo
- Publication number
- RO101604B1 RO101604B1 RO135136A RO13513688A RO101604B1 RO 101604 B1 RO101604 B1 RO 101604B1 RO 135136 A RO135136 A RO 135136A RO 13513688 A RO13513688 A RO 13513688A RO 101604 B1 RO101604 B1 RO 101604B1
- Authority
- RO
- Romania
- Prior art keywords
- aqueous solution
- sodium silicate
- concentration
- weight
- sodium hydroxide
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/20—Silicates
- C01B33/32—Alkali metal silicates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
Inventia se refera la procedeul de obtinere a silicatului de sodiu direct sub forma de solutie apoasa prin reactia dintre dioxidul de siliciu si hidroxidul de sodiu. în scopul realizarii unui produs cu consum redus de energie, se dizolva sub agitare continua, într-o solutie apoasa de hidroxid de sodiu cu concentratia de 40...45%, praf usor silicios, deseu de fabricatie cu concentratia în SiO2 de 91...95% provenit de la epurarea uscata a gazelor arse din procesul industrial de elaborare a ferosiliciului, timp de 2,5...3 h, la temperaturi de 90...98 degree C, purificarea solutiei brute de silicat de sodiu se face prin decantare, filtrare sau centrifugare, obtinându-se o solutie apoasa de silicat cu densitatea de 1,36...1,70 g/cm 3 si care contine 28,08% în greutate SiO2 si 10,07% în greutatea Na2O, precum si 0,040...0,095% în greutate Fe2O3, 0,020...0,036% în greutate CaO si 0,08...0,20% în greutate NaCl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO1988135136A RO101604A2 (ro) | 1988-09-12 | 1988-09-12 | Procedeu de obtinere a silicatului de sodiu |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO1988135136A RO101604A2 (ro) | 1988-09-12 | 1988-09-12 | Procedeu de obtinere a silicatului de sodiu |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO101604B1 true RO101604B1 (ro) | 1991-06-29 |
| RO101604A2 RO101604A2 (ro) | 1991-12-02 |
Family
ID=20122463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO1988135136A RO101604A2 (ro) | 1988-09-12 | 1988-09-12 | Procedeu de obtinere a silicatului de sodiu |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO101604A2 (ro) |
-
1988
- 1988-09-12 RO RO1988135136A patent/RO101604A2/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO101604A2 (ro) | 1991-12-02 |
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