Matches 1 - 18 out of 18
Match Document Document Title
6955695 Conversion of petroleum residua to methane  
This invention discloses improvements on previous inventions for catalytic conversion of coal and steam to methane. The disclosed improvements permit conversion of petroleum residua or heavy crude...
5221528 Process for the preparation of sodium chloride  
In a purification process for brine, impurities such as calcium, magnesium and/or sulphate are precipitated by the addition of calcium hydroxide (Ca(OH) 2 ) and sodium carbonate (Na 2 CO 3 )....
4957428 Process for constructing furnaces with open chambers, for avoiding deformation thereof  
A process as disclosed for constructing a furnace for open chambers for baking carbonaceous blocks, comprising arranging a plurality of chambers in a series or in two parallel series, each chamber...
4655828 Separation of metallic lithium  
Lithium metal is separated from lithium salts in spent torpedo boiler fuel by solubilizing said salts in a solution of a Lewis acid such as boron trifluoride in a polar solvent such as...
3897543 Process for making crystalline cryolite of high bulk density  
Processes for the production of crystalline cryolite having a high bulk density which comprises reacting by slowly adding with continuous stirring to an aqueous solution of hydrofluoric acid...
3875291 Process for making cryolite  
Cryolite is made by placing an aqueous aluminum fluoride solution in a reaction vessel, then slowly and simultaneously adding an aqueous sodium salt solution and an aqueous ammonium fluoride...
3514266 SEPARATION OF ALUMINUM,CALCIUM,AND MAGNESIUM FROM THE ALKALI METALS BY SOLVENT EXTRACTION  
3489508 ION EXCHANGE CATION PURIFICATION PROCESS  
3207575 Process for treatment of salting out product to recover sodium aluminum fluoride and sulfuric acid  
3130010 Process for production of high purity cesium metal and cesium compounds  
3082060 Treatment of sodium carbonate  
3065051 Process for the recovery of cryolite from waste gases and from the carbon bottom of an aluminum electrolytic furnace  
3055734 Process for separating sea salts  
3002810 Method for producing sodium borates of lowered iron content  
2913310 Chemical recovery process  
2893828 Lithium values recovery process  
RE13268 Title is not available  
3598522 Title is not available  
Matches 1 - 18 out of 18