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SERVICIOS INDUSTRIALES PEÑOLES SA DE CV
| SERVICIOS INDUSTRIALES PEÑOLES SA DE CV Patent applications | ||
| Patent application number | Title | Published |
|---|---|---|
| 20100254867 | Process to Produce Sodium Sulfate and Magnesium Hydroxide - This invention refers to a novel process to obtain magnesium hydroxide and sodium sulfate from a solid raw material, which contains sodium and magnesium soluble salts, preferably in the form of sulfates, coming from a natural source or as a byproduct of an industrial process. The process consisting in the conditioning of the raw material to guarantee the correct concentrations of sodium and magnesium sulfates that is subjected to a salting-out crystallization when mixed with sodium sulfate obtaining sodium sulfate; the resulting solution is subjected to an alkali treatment to precipitate the magnesium hydroxide and the mother liquor is fed to a regeneration stage of the alkali used in the precipitation of the magnesium hydroxide as well in the sodium sulfate solution for the crystallization. The crystallization can be performed as a multistage process countercurrent to increase the purity of sodium sulfate. | 10-07-2010 |
| 20100143183 | PROCESS FOR MANUFACTURE OF NANOMETRIC, MONODISPERSE, STABLE METALLIC SILVER AND A PRODUCT OBTAINED THEREFROM - The present invention relates to a procedure for preparation by a wet reduction method of nanometric particles of metallic silver, with diameter ranging from 1 to 100 nm and an average diameter of 20 to 40 nm, with monodispersion characteristics, stabilities exceeding 12 months and in a wide range of concentrations. The process comprises 4 stages: a) preparation of the reducing agent solution, taken from the tannins group and preferably tannic acid; b) preparation of a solution of soluble silver salts; c) reaction and, d) liquid-solid separation; the particle size is determined by the nature of the reducing agent and by the pH control of the currents. The final stage is designed for separating and concentrating the material after which the user can prepare the product for integration thereof in the desired medium. The particles obtained are redispersable in different media, such as water, alkidalic and phenolic resins, nitrocellulose, polyeurethane, vinylics, acrylics, alcohols, and in a wide range of organic and polymeric products such as high and low density polyethylene, Nylon, ABS and/or mixtures thereof. | 06-10-2010 |