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7531152 |
Mineralization of alkali metals, sulfur, and halogens
A system and method for conversion of alkali metals, heavy metals, halogens, and sulfur into mineral products. The system includes a single reaction vessel. To begin the process, co-reactants such...
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7323150 |
Methods for recovering at least one metallic element from ore
A method for recovering at least one metallic element from ore or other material is described and includes reacting ore or other material with a salt capable of recovering the metallic element from...
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6852293 |
Process and device for waste pyrolysis and gasification
A process is disclosed for the pyrolysis and gasification of waste materials, in particular of special and/or hazardous waste materials, comprising a gasification and melting step, a step of...
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6426083 |
Aqueous borate-containing compositions and their preparation
The invention relates to aqueous boron-containing compositions and their preparation. In particular the invention provides self-structured aqueous sodium pentaborate gels. The gels according to the...
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6149765 |
Process for detoxifying waste materials by steam reformation through endothermic gasification reactions
Resonant tubes of a pulse combustor are immersed in a bed of solid particles in a reaction zone to provide indirect heat from the pulsating combustion gases to the solid particles of the bed. The...
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6025075 |
Mixture of sorbitan ester, magnesium hydroxide and thermoplastic resin
A thermoplastic resin containing a flame-retarding magnesium hydroxide has its workability enhanced by a sorbitan ester in admixture with the resin and flame retardant. An admixture of the resin,...
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5711019 |
Method for treating electrolyte to remove Li2 O
A method of removing Li2 O present in an electrolyte predominantly of LiCl and KCl. The electrolyte is heated to a temperature not less than about 500° C. and then Al is introduced into the ...
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4430241 |
Mixed nitrate salt heat transfer medium and process for providing the same
A process for producing particles of a non-friable eutectic mixture of sodium nitrate and potassium nitrate for solar power station use is disclosed. In one embodiment of the invention, the...
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4366130 |
Process for removing residual hydrazine from caustic solutions
In a process for manufacturing food-grade caustic such as sodium hydroxide wherein hydrazine or a derivative or salt thereof is used as a corrosion inhibitor, residual hydrazine is removed from the...
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4234449 |
Method of handling radioactive alkali metal waste
Radioactive alkali metal is mixed with particulate silica in a rotary drum reactor in which the alkali metal is converted to the monoxide during rotation of the reactor to produce particulate...
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4005987 |
Process for drying moist materials, particularly crystalline solids containing water of hydration
A process for drying moist material, particularly substances containing water of crystallization, in which the material is passed in counterflow through a shaft to gases having an inlet temperature...
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3653875 |
RECOVERY OF METALS AND PHOSPHATE FROM WASTE PHOSPHATE SLUDGE
Waste phosphate sludge containing metals including iron and zinc are mixed with an alkali solution, and the mixture is dried and sintered at a temperature of about 500° to 1300° C. in the p...
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3533735 |
PRODUCTION OF POTASSIUM CHLORIDE FROM SCHOENITE AND FROM BRINES CONTAINING POTASSIUM,MAGNESIUM,CHLORIDE AND SULFATE
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3528767 |
PRODUCTION OF POTASSIUM CHLORIDE,POTASSIUM SULFATE AND SODIUM SULFATE FROM BRINES AND THE LIKE CONTAINING POTASSIUM,CHLORIDE AND SULFATE
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3752875 |
PROCESS FOR INCREASING REACTION RATE IN CONVERSION OF SULFIDES AND HYDROSULFIDES
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3425795 |
METHOD FOR PREPARING SUPERDENSE SODIUM CARBONATE FROM WYOMING TRONA AND THE PRODUCT THEREOF
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3336103 |
Process for producing anhydrous sodium tetraborate
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3257165 |
Continuous method for the purification of brine
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3077376 |
Method for preparing alkali-metal borohydrides
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2902343 |
Process for the preparation of hydrous potassium magnesium sulfate from kainite containing sodium chloride
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2891843 |
Chemical recovery process and apparatus
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2871093 |
Method of recovering thiocyanate solutions
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2792289 |
Extraction method and apparatus
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