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| Number | Title | Issue Date |
| 8057770 | Process for hydrothermal production of sodium silicate solutions and precipitated silicas A method is provided for treating silica sand scrubs (SSS) generated and accumulated as waste in the chloride manufacturing process of titanium dioxide pigment. A hydrothermal process is used to produce sodium silicate solutions of modulus 3.0 to 3.8, and precipitat... | 11/15/2011 |
| 7335342 | Process for the preparation of sodium silicate from Kimberlite tailing In the present invention a process for the preparation of sodium silicate from Kimberlite tailing generated as solid waste during diamond mining is disclosed. The process comprises, reacting Kimberlite tailing with mineral acid to remove acid soluble impurities foll... | 02/26/2008 |
| 7314605 | Microporous crystalline metal silicates and processes for their preparation New bridged layered silicates are disclosed where the bridging groups bridge adjacent silicate layers via oxygen atoms on each silicate layer that are unshared to produce porous three dimensional structures. Methods for making these bridged layered silicates are dis... | 01/01/2008 |
| 7293568 | Aqueous solutions of silicon metal and methods of making and using same The present invention generally relates to a formulation created by reacting sodium hydroxide, water, and silicon metal which has unique properties and many uses. The instant invention is further directed to methods of producing and using such formulations. ... | 11/13/2007 |
| 7270794 | Process for recovering useful products and energy from siliceous plant matter In the process disclosed herein, siliceous plant matter is steeped in water, soaked in an aqueous solution containing a solute which solubilizes inorganic oxides, soaked in an aqueous solution containing an oxidizing solute, rinsed, dried and thermally pyrolyzed to ... | 09/18/2007 |
| 6883349 | Method for preparing raw materials for glass-making The subject of the invention is a process for manufacturing compounds based on one or more silicates of alkali metals, such as Na and K and/or alkaline earth metals such as Ca, Mg, and/or on rare earths, such as Ce, optionally in the form of mixed silicates which co... | 04/26/2005 |
| 6818579 | Granular ceramic material with high porosity A ceramic material, includes SiO2 and Na2O and/or K2O. The material is characterized by a porosity of over 60% and by pores, more than 70% of which have a pore size ranging between 0.1 and 15 μm. The ceramic material can be used as ... | 11/16/2004 |
| 6811602 | Process for preparing silicate porous product A process for preparing a silicate porous product, which comprises a step of forming a clay mineral into a dispersion by means of a dispersant, a step of removing gases dissolved in the dispersion, a step of freezing the dispersion and drying it in its frozen state ... | 11/02/2004 |
| 6413493 | Process for producing P zeolite The invention describes a process for preparing P zeolites in which aluminate and silicate solutions are reacted in the presence of a P-zeolite seed.... | 07/02/2002 |
| 6407055 | Crystalline alkali metal phyllosilicate The invention relates to a crystalline alkali metal phyllosilicate of the formula aMI2 O.bEO2.cX.sub.2 O5.dZO.sub.3.SiO.sub.2.eH.sub.2 O, in which MI is an alkali metal, E is an element of the fourth main ... | 06/18/2002 |
| 6274111 | Synthetic magnesium silicate The invention relates to a synthetic magnesium silicate having a layered crystalline structure, to a process for its preparation and to its use.... | 08/14/2001 |
| 6168694 | Methods for and products of processing nanostructure nitride, carbonitride and oxycarbonitride electrode power materials by utilizing sol gel technology for supercapacitor applications Metal nitride, carbonitride, and oxycarbonitride powder with high surface area (up to 150 m2 /g) is prepared by using sol-gel process. The metal organic precursor, alkoxides or amides, is synthesized firstly. The metal organic precursor is modi... | 01/02/2001 |
| 6143266 | Method for producing crystalline inorganic builders A method for producing a crystalline inorganic builder having the following composition in its anhydrous form: xM2 O.ySiO2.zMeO, wherein x, y and z are numerical values satisfying the following relationships: y/x is 1.0 to 4.0, z/y i... | 11/07/2000 |
| 6114269 | Process for preparing chemically modified micas for removal of cesium salts from aqueous solution A chemically modified mica composite formed by heating a trioctahedral mica in an aqueous solution of sodium chloride having a concentration of at least 1 mole/liter at a temperature greater than 180 degrees Centigrade for at least 20 hours, thereby repla... | 09/05/2000 |
| 6036733 | Process for the preparation of crystalline sodium silicates The invention relates to a process for the preparation of crystalline sodium silicates having a sheet structure and high δ phase content from water glass, which has been prepared predominantly hydrothermally, by dehydration of the water glass and subsequ... | 03/14/2000 |
| 5833940 | Production of soluble silicates from biogenetic silica Disclosed is a commercial grade of soluble silicate solutions, clear homogenous and water white essentially free of unreacted silica, made by dissolving in a closed container biogenetic silica, preferably rice hull ash, in a strong alkali solution, prefer... | 11/10/1998 |
| 5807951 | Pharmaceutical composition regulating function of a living body The present invention provides silicate polymers which regulate the function of a living body by restoring and normalizing the lowered cell functions due to diseases. The silicate polymers are preferably water soluble. The molecular weight of the polymers... | 09/15/1998 |
| 5807529 | Process for the production of silicate-based builder granules with increased apparent density A process for producing silicate or silicate-containing builder granules having an apparent density of at least 600 g/l by compacting silicate materials having an apparent density of less than 500 g/l, a molar ratio of SiO2 to Na2 O ... | 09/15/1998 |
| 5800801 | MTW zeolite for cracking feedstock into olefins and isoparaffins The present invention relates to a zeolite catalyst, a process for using the catalyst for conversion of hydrocarbons, especially naphtha and LPG feedstock, and a process for preparing the catalyst.... | 09/01/1998 |
| 5785940 | Silicate reactor with submerged burners The present invention pertains to a reactor for producing sodium or potassium silicate. The reaction vessel includes submerged burners. A trough extends downwards and away from the reaction vessel. The trough connects to an outlet in the reaction vessel w... | 07/28/1998 |
| 5776893 | Crystalline Hydrated layered sodium and potassium silicates and method of producing same A crystalline hydrated layered sodium and potassium silicate/amorphous sodium and potassium silicate composite material with predetermined hardness ion sequestration properties is achieved by controlling the process for forming the material. The process f... | 07/07/1998 |
| 5739098 | Crystalline sodium potassium silicates A crystalline silicate material containing both sodium and potassium cations within the crystalline matrix. Wherein the material is SiO2 /(xNa2 O+yK2 O)=Z where x+y=1, 0.75 | 04/14/1998 |
| 5693304 | Amorphous alkali metal silicate process and uses A particulate amorphous alkali metal silicate is prepared by heating a mixture of silicate glass and water or aqueous solution to a temperature of about 300°-400° C. to provide a foamed material that is easily formed into particles of less than 20 micro... | 12/02/1997 |
| 5643358 | Crystalline hydrated layered sodium and potassium silicates and method of producing same The present invention pertains to a crystalline hydrated layered sodium and potassium silicate/amorphous sodium and potassium silicate composite material with predetermined hardness ion sequestration properties achieved by controlling the process for form... | 07/01/1997 |
| 5629362 | Photon diffusive coating Photon-diffusive coating compositions contain a binder and a mineral containing at least about 65%, preferably at least about 75%, and most preferably at least about 85% to 90% silica, of which at least about 60%, preferably at least about 75% to 85% is i... | 05/13/1997 |
| 5614160 | Composite silicate materials The present invention pertains to a crystalline hydrated layered sodium silicate/amorphous sodium silicate composite material with predetermined hardness ion sequestration properties achieved by control of the process for forming the material, and a proce... | 03/25/1997 |
| 5614161 | Crystalline sheet sodium silicate The invention relates to a crystalline sheet sodium silicate of the general formula xNa2 O.multidot.ySiO2 .multidot.zP2 O5 in which the ratio of x to y corresponds to a number from 0.35 to 0.6, the ratio of x to z corresp... | 03/25/1997 |
| 5503819 | Substituted fluoride smectite clays, process for preparing the clay and uses thereof Novel fluoride containing substituted smectite clays are disclosed as well as their preparation and uses. The clay has the formula Ax (My M'4--y)(Si8--x Mt M'v)O20 (OH)4--u... | 04/02/1996 |
| 5417951 | Process for the hydrothermal production of crystalline sodium disilicate The invention is a process for the hydrothermal production of crystalline sodium disilicate by heating an aqueous mixture of quartz sand and sodium hydroxide or an aqueous solution of sodium disilicate with a solids content of at least 50% by weight or mo... | 05/23/1995 |
| 5393507 | Silicate products The characteristics of compacted sodium silicate, in particular the bulk density, are improved by heating the material at an elevated temperature in an agitated bed. Bulk density in the region of 1 kg/liter can be obtained.... | 02/28/1995 |
| 5362466 | Aluminosilicates The invention describes a process for preparing P zeolites in which aluminate and silicate solutions are reacted in the presence of a P-zeolite seed.... | 11/08/1994 |
| 5356607 | Process for the hydrothermal production of crystalline sodium disilicate This invention is a process for the hydrothermal preparation of sodium disilicate with a molar ratio of Na2 O:SiO2 of 1:2 at an elevated temperature and a pressure corresponding to said temperature in a pressure vessel, characterized... | 10/18/1994 |
| 5340559 | Granular alkali metal silicate production Alkali metal silicate solutions are formed into granules in a single stage. The heated solution is sprayed into a heated drum having a multiplicity of arms fixed to a rapid by rotating central shaft. A gas, preferably air, heated to 150° C. to 200° C. i... | 08/23/1994 |
| 5308596 | Process for the production of crystalline sodium disilicate in an externally heated rotary kiln having temperature zones To prepare crystalline sodium disilicates having a laminar structure, a molar ratio of SiO2 to Na2 O of (1.9 to 2.1) 1 and a water content of less than 0.3% by weight, a water glass solution is first obtained by reacting sand with so... | 05/03/1994 |
| 5268156 | Process for the preparation of sodium silicates To prepare crystalline sodium silicates having a laminated structure, a molar ratio of SiO2 to Na2 O of (1.9 to 2.1) 1 and a water content of less than 0.3% by weight from a water glass solution which has a solids content of at least... | 12/07/1993 |
| 5262144 | Siliceous molecular sieves having low acid activity and process for preparing same The present invention relates in general to highly siliceous zeolitic molecular sieve adsorbent compositions having reduced catalytic activity and to the process for preparing such compositions. The number of acid sites in the so-called silica molecular s... | 11/16/1993 |
| 5229095 | Process for producing amorphous sodium silicate A process for producing amorphous sodium silicates having a water content of 0.3 to 6% by weight and an SiO2 /Na2 O molar ratio of (1.9 to 2.8) : 1 from a waterglass solution containing at least 20% by weight of solids, the water-gla... | 07/20/1993 |
| 5215732 | Method for producing alkali metal silicates by heating cristobalite or tempered quartz sand with NaOH or KOH under atmospheric pressure Method for producing alkali metal silicates from crystalline siliceous material and aqueous alkali metal hydroxide solution at high temperature and normal pressure, characterized in that cristobalite and/or tempered quartz sand are used as the siliceous m... | 06/01/1993 |
| 5211930 | Process for the preparation of crystalline sodium silicates having a sheet structure For the preparation of crystalline sodium silicates having a sheet structure and an SiO2 /Na2 O molar ratio of 1.9:1 to 3.5:1 from waterglass solutions having a solids content of 20 to 65% by weight, the waterglass solutions are firs... | 05/18/1993 |
| 5183651 | Process for the preparation of crystalline sodium silicates To prepare crystalline sodium silicates having a layer structure and the formula Na2 Six O2x+1, in which x is between 2 and 3, sand and soda are first fused in a molar ratio of SiO2 /Na2 O of 2 to 3.5... | 02/02/1993 |
