RO87633B1 - PROCEDEU DE OBTINERE A SILICEI ACTIVE îNALT DISPERSA - Google Patents
PROCEDEU DE OBTINERE A SILICEI ACTIVE îNALT DISPERSAInfo
- Publication number
- RO87633B1 RO87633B1 RO112287A RO11228783A RO87633B1 RO 87633 B1 RO87633 B1 RO 87633B1 RO 112287 A RO112287 A RO 112287A RO 11228783 A RO11228783 A RO 11228783A RO 87633 B1 RO87633 B1 RO 87633B1
- Authority
- RO
- Romania
- Prior art keywords
- sodium silicate
- obtainining
- nacl
- sulfuric acid
- active silica
- Prior art date
Links
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title abstract 6
- 239000000377 silicon dioxide Substances 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 4
- 239000004115 Sodium Silicate Substances 0.000 abstract 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 abstract 3
- 229910052911 sodium silicate Inorganic materials 0.000 abstract 3
- 238000006386 neutralization reaction Methods 0.000 abstract 2
- 239000011780 sodium chloride Substances 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 239000004372 Polyvinyl alcohol Substances 0.000 abstract 1
- 238000000889 atomisation Methods 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 239000006185 dispersion Substances 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 230000003472 neutralizing effect Effects 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 229920001296 polysiloxane Polymers 0.000 abstract 1
- 229920002451 polyvinyl alcohol Polymers 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
Landscapes
- Silicon Compounds (AREA)
Abstract
Procedeul de obtinere a silicei active înalt dispersa prin neutralizarea unei solutii de silicat de sodiu cu acid sulfuric, conform inventiei consta în aceea ca în scopul obtinerii unei silice cu structura afanata avand diametrul mediu al particulelor cuprins între 10.....15 niu m se supune neutralizarii partiale o solutie de silicatde sodiu 27% eventual în prezenta alcoolului polivinilic 0,02% la temperaturi între 40....80 degree C si apoi hidrosolul astfel obtinut se precipita cu NaCl în raport 0,25.....0,33 g NaCl la 1 g SiO2 dupa care se continua neutralizarea cu acid sulfuric singur sau în amestec de silicat de sodiu pana la pH slab alcaliu separa prin filtrare se spala cu apa si se usuca de preferinta, prin atomizare.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO83112287A RO87633A2 (ro) | 1983-10-08 | 1983-10-08 | Procedeu de obtinere a silicei active inalt dispersa |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO83112287A RO87633A2 (ro) | 1983-10-08 | 1983-10-08 | Procedeu de obtinere a silicei active inalt dispersa |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO87633B1 true RO87633B1 (ro) | 1985-10-03 |
| RO87633A2 RO87633A2 (ro) | 1985-10-31 |
Family
ID=20113729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO83112287A RO87633A2 (ro) | 1983-10-08 | 1983-10-08 | Procedeu de obtinere a silicei active inalt dispersa |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO87633A2 (ro) |
-
1983
- 1983-10-08 RO RO83112287A patent/RO87633A2/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO87633A2 (ro) | 1985-10-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DK0643015T3 (da) | Fremgangsmåde til fremstilling af fældningskiselsyre | |
| ATE250558T1 (de) | Dotierte fällungskieselsäure | |
| DK160289D0 (da) | Findelt udfaeldet kiselsyre med hoej struktur, fremgangsmaade til fremstilling deraf og anvendelse af en saadan kiselsyre | |
| ES8304034A1 (es) | "procedimiento para la preparacion de un acido silicico de precipitacion". | |
| SE7510900L (sv) | Stabila suspensioner av vattenolosliga silikater med formaga att binda kalciumjoner och anvendning derav for framstellning av tvett- och rengoringsmedel | |
| NO982069L (no) | FremgangsmÕte for fremstilling av organisk modifiserte aerogeler hvorved de dannede saltene utfelles | |
| GB1073338A (en) | Mixed coating process | |
| FR2833937B1 (fr) | Silices a faible reprise en eau | |
| DK416580A (da) | Fremgangsmaade til at retardere gelering af bicarbonat-carbonat-silikat-saebeblanderopslaemninger | |
| GB1105618A (en) | A process for the production of finely divided precipitated silicon dioxide | |
| KR860006537A (ko) | 세제용 빌더 | |
| GB1239078A (ro) | ||
| KR850002376A (ko) | 수분산 용이성 프로시미돈 함유 과립상 제제 | |
| KR870010174A (ko) | 세제분말 및 그 제조방법 | |
| DK141391A (da) | Fremgangsmaade til hydrotermal fremstilling af natriumsilikatoploesninger med hoejt sio2:na2o-molforhold | |
| ATE35969T1 (de) | Verfahren zur herstellung von kupfer-ii-hydroxid. | |
| KR950005745A (ko) | 침강 실리카의 제조방법 | |
| SU1613463A1 (ru) | Способ получени красного железоокисного пигмента | |
| JPS6472913A (en) | Production of stable colloidal silica | |
| JPS553321A (en) | Production of zeolite | |
| SU706324A1 (ru) | Способ получени высокодисперсной двуокиси кремни | |
| SU793935A1 (ru) | Способ получени кремнегел | |
| SU715462A1 (ru) | Способ получени белой сажи | |
| SU423181A1 (ru) | Способ получения шихты для ферритов | |
| SU458526A1 (ru) | Способ обжига портландцементного клинкера |