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7041267 |
Granular sodium carbonate obtained by fluid-bed spray granulation and a process for its production
The invention relates to a process for the production, by fluid-bed spray granulation, of granular sodium percarbonate having a low TAM value. According to the invention, in the fluid-bed spray...
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5348689 |
Molten salt destruction of alkali and alkaline earth metals
A process for destroying alkali metal and alkaline earth metal-containing wastes, such as sodium, by feeding such waste into a molten bath containing a molten salt such as sodium carbonate, or a...
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5288472 |
Process for the recovery of the sodium hydroxide and sodium chloride from the effluent of a diaphragm cell as solid sodium bicarbonate
The present invention relates to a method and process for recovering solid sodium bicarbonate, from the effluent, of the cathode compartment of a diaphragm cell that contains sodium hydroxide and...
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5275794 |
Process for producing sodium bicarbonate from natural soda salts
Production of sodium bicarbonate from natural soda deposits that may occur as natural brines or solid soda salts is disclosed. The alkalinity in these natural soda deposits consists of carbonates...
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5202062 |
Disposal method of radioactive wastes
The present invention adds carbonates or chlorides of alkaline earth metals to the radioactive wastes containing sodium sulfate and subjects sulfate group in the radioactive wastes to reduction...
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5093089 |
Process for the separation of sulphate
Process for separating sulphate from a contaminating chromium component contained in an aqueous liquor by the crystallization of a sulphate compound. The sulphate may be separated substantially...
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4677229 |
Process for the production of a water-insoluble nitrogenous organic base, starting from an aqueous solution of an alkali metal bicarbonate and the hydrochloride of the said base and process for the manufacture of sodium bicarbonate
Process for the production of a water-insoluble nitrogeneous organic base, from an aqueous solution of alkali metal bicarbonate and the base hydrochloride, according to which the solution (11) is...
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4563340 |
Process for the secondary obtention of sodium carbonate from FLP waste liquor
This invention is related to a process for the secondary obtention of sodium carbonate from a waste liquor (known as FLP waste liquor) containing principally sodium chloride, ammonium bicarbonate,...
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4402850 |
Method of producing a liquid agent for improving the quality of contaminated water
A method is disclosed of producing a liquid agent for improving the quality of contaminated water, particularly water in pools, natural bodies of water and waste waters, characterized by...
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4291002 |
Process for producing sodium carbonate from complex brines
A process for the production of sodium carbonate wherein sodium bicarbonate is recovered from a brine containing sodium carbonate by carbonation of the brine under controlled conditions. The sodium...
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4288419 |
Enhanced recovery of sodium carbonate from NaCl-containing sodium carbonate solutions
A method for enhancing recovery of sodium carbonate from sodium carbonate solutions which contain sodium chloride. Anhydrous sodium carbonate is recovered in good yields from aqueous sodium...
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4268408 |
Solid cyanuric chloride handling improvements with tricalcium phosphate
A non-lumping, non-dusting free-flowing cyanuric chloride is provided by adding thereto 0.1 to 5% of finely divided tribasic calcium phosphate. The composition reduces the fumes and dust associated...
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4256719 |
Process for the combined manufacture of chlorinated hydrocarbons and sodium bicarbonate
Production of sodium bicarbonate by the Solvay-soda method, employing a volatile aliphatic amine instead of ammonia, is combined with the oxychlorination of olefins in liquid phase by using the...
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4190638 |
Production of hypochlorous acid
An aqueous hypochlorous acid production process is disclosed wherein the precipitate formed upon carbonating electrolytic cathode cell liquor is contacted in a fluidized bed with a mixture of...
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4061718 |
Method for the recovery of ammonia from liquor from the filters of ammonia-soda plants
A method for the recovery of ammonia from liquor from the filters of ammonia-soda plants, which contains free ammonia and ammonium chloride. In this method the liquor is heated to release the free...
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4032616 |
Process for the production of sodium bicarbonate from diaphram cell liquors
Process and apparatus for producing bicarbonates by converting sodium hydroxide to sodium carbonate and reacting the sodium carbonate with carbon dioxide in a gas-liquid exchange and solid...
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4007082 |
Kraft mill recovery system
An improved process for the treatment of precipitator catch wherein the catch is slurried with water, sufficient carbon dioxide is added to convert the sodium carbonate present to sodium...
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3914945 |
Process for disposing of the effluents from the distillers of ammonia-soda plants
Process for disposing of the effluents from the distillers of ammonia-soda plants at the bottom of subterranean cavities of disused salt boreholes, the cavities being filled with a sodium chloride...
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3887689 |
Carbonation of ammoniacal sodium chloride brine
Carbonation of ammoniacal sodium chloride brine in the ammonia soda process wherein a phenol-free or phenol deficient ammonia is used as make-up ammonia, the improvement being that one or more...
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3855397 |
METHOD OF PRODUCING SODIUM CARBONATE AND BICARBONATE SPHERULES FROM BRINE
Free-flowing spherules of sodium bicarbonate are prepared from a sodium carbonate or from salt brine, substantially saturated with ammonia, by carbonating the sodium carbonate solution, or the...
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3855398 |
SODIUM CARBONATE AND BICARBONATE SPERULITES FROM CHLORINE ELECTROLYTIC CELL LIQUORS
By-product sodium hydroxide/sodium chloride cell liquor obtained from the electrolytic production of chlorine serves as raw material for a method of producing spherulites of sodium bicarbonate, and...
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3852427 |
SODIUM BICARBONATE SPHERULITES FROM SODIUM D ESQUICARBONATE
Sodium sesquicarbonate, either natural or synthetic, serves as raw material for the production of spherulites of sodium bicarbonate, which may, in turn, be calcined to produce hard, free-flowing...
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3843768 |
PROCESS FOR THE PREPARATION OF SODIUM CARBONATE MONOHYDRATE FROM A SODIUM HYDROXIDE SOLUTION PRODUCED ACCORDING TO THE DIAPHRAGM PROCESS
A single stage process for producing sodium carbonate monohydrate by carbonating an aqueous sodium hydroxide solution contaminated with an inorganic salt with a CO 2 -containing gas to form the...
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3329479 |
Process for recovering calcium chloride from the ammonium chloride waste liquor of the ammonia soda process
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3112173 |
Separate precipitation of sodium and potassium bicarbonate from sodium chloride-potassium chloride solutions
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3079227 |
Method for the purification of potassium carbonate
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2926995 |
Process for producing large sodium bicarbonate crystals
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2903336 |
Production of potassium carbonate
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2900232 |
Separation of potassium and sodium ions from a mixture of sodium and potassium chlorides
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1000138 |
Title is not available
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3842157 |
Title is not available
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3816593 |
Title is not available
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