FIELD: chemistry.
SUBSTANCE: sodium silicate solution is treated outside an electrolysis cell with an anodic acid aqueous solution flowing from the anode chamber of the electrolysis cell at pH 3-4. The anodic acid solution is obtained through electrolysis of tap water in flowing mode.
EFFECT: invention increases purity of silica gel by avoiding contamination with sodium sulphate and reduces power consumption on production.
1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING SILICA GEL | 2012 |
|
RU2525087C2 |
| LINEN-WASHING METHOD | 1992 |
|
RU2032782C1 |
| METHOD FOR ELECTROCHEMICAL PRODUCTION OF SILVER NITRATE AND SODIUM HYDROXIDE | 2004 |
|
RU2252979C1 |
| METHOD OF ELECTROACTIVATION OF AQUEOUS SODIUM SALT SOLUTIONS | 2013 |
|
RU2548967C2 |
| METHOD FOR PREPARING AND ISOLATING SALICYLIC ACID | 2005 |
|
RU2293076C1 |
| WATER PRODUCED BY ELECTROLYSIS AND CONTAINING DISSOLVED HYDROGEN, METHOD OF WATER PRODUCTION BY ELECTROLYSIS AND PLANT FOR WATER PRODUCTION BY ELECTROLYSIS | 1997 |
|
RU2140881C1 |
| METHOD FOR PRODUCTION OF AQUEOUS ACIDIFIED SOLUTION CONTAINING CHLORATE IONS, METHOD FOR ELECTROCHEMICAL TREATMENT OF AQUEOUS SOLUTION OF MIXTURE OF SALTS OF ALKALI METALS, METHOD FOR PRODUCTION OF CHLORINE DIOXIDE | 1991 |
|
RU2108413C1 |
| METHOD OF SYNTHESIS OF SALICYLIC ACID | 1997 |
|
RU2135459C1 |
| METHOD OF LOWERING CHLORIDE CONTENT IN CHEMICAL REAGENT REGENERATION SYSTEM FOR PULPING | 1993 |
|
RU2095504C1 |
| METHOD OF REUSING SODIUM SULFIDE WASTE | 1995 |
|
RU2108976C1 |
