Aerogel materials, aerogel composites and the like may be improved by enhancing their smoke suppression, combustion reduction properties. It is additionally useful to provide aerogel based composites compatible with environments conducive to combustion. Such aerogel materials and methods of manufacturing the same are described.

Aerogel materials, aerogel composites and the like may be improved by enhancing their smoke suppression, combustion reduction properties. It is additionally useful to provide aerogel based composites compatible with environments conducive to combustion. Such aerogel materials and methods of manufacturing the same are described.

An energy system with hydration of magnesium hydride, including: a magnesium hydride storage tank, a Covapor unit, a storage battery, a hydrogen buffer and temperature regulation tank, a meter, a molecular sieve filter, a hydrogen fuel cell, an exhaust gas purifier, a water tank, and an air purifier. A water outlet of the hydrogen fuel cell is connected to a water inlet of the magnesium hydride storage tank. A hydrogen outlet of the magnesium hydride storage tank is connected to a hydrogen inlet of the hydrogen fuel cell. A thermal conductive medium outlet of the magnesium hydride storage tank is connected to a jacket of the molecular sieve filter and the Covapor unit, respectively, and a jacket outlet of the molecular sieve filter and an outlet of the Covapor unit are respectively connected to a thermal conductive medium inlet of the magnesium hydride storage tank.

To provide magnesium oxide which is excellent in hydration resistance and hardly causes volume expansion due to hydration and the like, a resin composition containing the same, and a method for producing the magnesium oxide powder. Magnesium oxide powder having a coating layer mainly comprising basic magnesium carbonate in the surface layer, when the amounts of substances of water vapor and carbon dioxide among the gas generated by thermal decomposition at 50 to 500 C. are respectively designated as m-H.sub.2O and m-CO.sub.2, in a heating evolved gas analysis (EGA-MS) method, the molar fraction represented by m-CO.sub.2/(m-H.sub.2O+m-CO.sub.2) being within the range of 0.3 to 0.6.

To provide magnesium oxide which is excellent in hydration resistance and hardly causes volume expansion due to hydration and the like, a resin composition containing the same, and a method for producing the magnesium oxide powder. Magnesium oxide powder having a coating layer mainly comprising basic magnesium carbonate in the surface layer, when the amounts of substances of water vapor and carbon dioxide among the gas generated by thermal decomposition at 50 to 500 C. are respectively designated as m-H.sub.2O and m-CO.sub.2, in a heating evolved gas analysis (EGA-MS) method, the molar fraction represented by m-CO.sub.2/(m-H.sub.2O+m-CO.sub.2) being within the range of 0.3 to 0.6.

Aerogel materials, aerogel composites and the like may be improved by enhancing their smoke suppression, combustion reduction properties. It is additionally useful to provide aerogel based composites compatible with environments conducive to combustion. Such aerogel materials and methods of manufacturing the same are described.

This invention provides an effective, dermatologically safe composition based on partially carbonated magnesium hydroxide for use in cosmetic formulations.

This invention provides an effective, dermatologically safe composition based on partially carbonated magnesium hydroxide for use in cosmetic formulations.

A process for extracting lithium from lithium-bearing salt brines including: (i) subjecting a feed brine to a primary evaporation step using mechanical evaporators, to form a first concentrated brine and sodium chloride; (ii) separating the sodium chloride in a salt removal step; (iii) reacting lime with the first concentrated brine in a liming step to precipitate out and discard magnesium and sulphate ions and other contaminants and to form a limed brine; (iv) subjecting the limed brine to a secondary evaporation step, to form a second concentrated brine and precipitating calcium chloride; (v) separating the calcium chloride from the second concentrated brine; (vi) reacting sodium sulphate with the second concentrated brine to precipitate out and discard calcium sulphate, to form a lithium-rich brine; (vii) reacting soda ash with the lithium rich brine thereby forming a precipitate of lithium carbonate; and (viii) separating the lithium carbonate.

A process for extracting lithium from lithium-bearing salt brines including: (i) subjecting a feed brine to a primary evaporation step using mechanical evaporators, to form a first concentrated brine and sodium chloride; (ii) separating the sodium chloride in a salt removal step; (iii) reacting lime with the first concentrated brine in a liming step to precipitate out and discard magnesium and sulphate ions and other contaminants and to form a limed brine; (iv) subjecting the limed brine to a secondary evaporation step, to form a second concentrated brine and precipitating calcium chloride; (v) separating the calcium chloride from the second concentrated brine; (vi) reacting sodium sulphate with the second concentrated brine to precipitate out and discard calcium sulphate, to form a lithium-rich brine; (vii) reacting soda ash with the lithium rich brine thereby forming a precipitate of lithium carbonate; and (viii) separating the lithium carbonate.