Did You Know...
...that Robert Adler has the dubious distinction of being the Father of the Couch Potato? Back in 1955 Adler was employed by what was then Zenith Radio Corp., where he was charged to invent something that would allow viewers to turn down the TV volume without leaving their chairs. After a series of flops (such as a wired contraption that people tripped over), Adler hit on the idea of using sound waves. Thus the Remote Control was born...
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| Number | Title | Issue Date |
| 6539954 | Machine dishwashing detergent The invention relates to a liquid to paste machine dishwashing detergent which, in addition to customary machine dishwashing detergent ingredients, comprises a crystalline, layered silicate of the formula aA2 O.bBO.cC2 O3.dD.sub.2 | 04/01/2003 |
| 6455491 | Granular alkali metal phyllosilicate compound The invention relates to a granular alkali metal phyllosilicate compound which comprises a crystalline alkali metal phyllosilicate, a colorant and an additive. The invention also relates to a process for its preparation, and to detergents and cleaners whi... | 09/24/2002 |
| 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 |
| 6372709 | Finely divided crystalline sodium disilicate The invention relates to a finely divided crystalline layered sodium disilicate of the formula NaMSix O2x+1.yH.sub.2 O, where M is sodium or hydrogen, x is a number from 1.9 to 4, and y is a number from 0 to 20, which comprises from ... | 04/16/2002 |
| 6300303 | Phyllosilicate-containing detergent and cleaner component The invention relates to a phyllosilicate-containing detergent and cleaner component which has a bulk density of less than 540 g/l, a mean particle diameter of more than 150 μm, a particle size fraction below 150 μm of less than 10%, a particle size fra... | 10/09/2001 |
| 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 |
| 6099595 | 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 hydrothermally, by dehydration of the water glass and subsequent crystalliz... | 08/08/2000 |
| 5895637 | Process for preparing sodium disilicate having a high ion-exchange capacity The invention relates to a process for preparing sodium disilicate in the ଲ form having a high ion-exchange capacity and a molar ratio Na2 O:SiO2 of about 1:2 from a silicate source and sodium hydroxide solution at elevated tem... | 04/20/1999 |
| 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 |
| 5507972 | Process for the preparation of a mixture of sodium silicates and other salts and the use of the mixture To prepare a mixture of sodium silicates having lamellar structure and sodium carbonate peroxohydrate, sodium silicate composed essentially of δ-Na2 Si2 O5 is reacted at least partially with carbon dioxide and atomized wa... | 04/16/1996 |
| 5456895 | Process for the production of crystalline sodium sheet silicate with kanemite structure The present invention relates to a process for the production of crystalline sodium sheet silicate with kanemite structure with the chemical formula NaH Si2 O5 .multidot.X H2 O in which X represents a value between 1 and 3. Cry... | 10/10/1995 |
| 5387358 | Alkaline earth metal sodium acetate, a process for its preparation and its use The alkaline earth metal sodium acetate according to the invention comprises 18 to 22% by weight of calcium (Ca++), 0 to 1% by weight of magnesium (Mg++), 4 to 7% by weight of sodium (Na+), 66 to 75% by weight of acetate (CH3 | 02/07/1995 |
| 5387359 | Alkaline earth metal potassium acetate, a process for its preparation and its use The alkaline earth metal potassium acetate according to the invention comprises 14 to 19 % by weight of calcium (Ca++), 0 to 1% by weight of magnesium (Mg++), 11 to 16 % by weight of potassium (K+), 62 to 71% by weight of acetate (C... | 02/07/1995 |
| 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 |
| 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 |
| 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 |
| 5158752 | Plant for producing ammonium polyphosphate A plant for producing chain-type ammonium polyphosphate from ammonium orthophosphate and phosphorus pentoxide in the presence of gaseous ammonia comprises a reactor having rotatable mixing, kneading and comminuting tools in its interior and a feed pipe fo... | 10/27/1992 |
| 5124137 | Process for the preparation of alkali metal phosphate solutions Alkali metal phosphate solutions having a fluorine content of less than 20 ppm, based on P2 O5, are prepared by first digesting crude phosphate using sulfuric acid, and separating the calcium sulfate from the crude phosphoric acid. A... | 06/23/1992 |
| 5078895 | Washing agent with storage-stabilized bleach system The invention relates to a washing agent with a storage-stabilized bleach system and 2 to 20% by weight of detergents and conventional washing auxiliaries, including fillers, the washing agent containing 10 to 50% by weight of a crystalline layered silica... | 01/07/1992 |
| 4971778 | Process for working up phosphoric acid For working up concentrated, preferably partially condensed phosphoric acid which is contaminated with organic components, the phosphoric acid is first thoroughly mixed with fine-grained sand in a weight ratio of (0.5 to 1.5):1. Then, to neutralize the mi... | 11/20/1990 |
| 4906445 | Continuous process for complete removal or organic impurities from and complete decolorization of prepurified wet-process phosphoric acid A continuous process is indicated for complete removal of organic impurities from and complete decolorization of pre-purified wet-process phosphoric acid which has been purified by an extractive method using an organic solvent, freed from residual hydrofl... | 03/06/1990 |
| 4904459 | Process for working up dusts which are produced in the electrothermal production of phosphorus A process is provided for working up dusts which have been precipitated electrostatically from the gas mixture composed essentially of carbon monoxide and phosphorus vapor produced in the electrothermal production of yellow phosphorus, which process compr... | 02/27/1990 |
| 4834960 | Process for purifying phosphorous acid The purification of phosphorous acid which is formed in halogenations of hydrocarbon derivatives using phosphorus trihalides is carried out in the context of preparing phosphorous acid in a reaction zone by reacting a mixture of phosphorus trichloride and... | 05/30/1989 |
| 4806324 | Process for making phosphoric acid free from titanium Phosphoric acid substantially free from titanium is made from the organic extract obtained by subjecting crude phosphoric acid containing titanium to extractive purification with an organic solvent immiscible or only partially miscible with water. To this... | 02/21/1989 |
| 4780294 | Process for making crude phosphoric acid Crude phosphoric acid is made by subjecting crude phosphate ore containing sulfide to processing treatment with a mineral acid in a closed system comprised of a processing reactor, a filtering zone and an off-gas scrubbing zone. To this end, a soluble com... | 10/25/1988 |
| 4777025 | Process for making phosphorus pentoxide of diminished reactivity Hexagonal phosphorus pentoxide of diminished reactivity is made by burning liquid yellow phosphorus with a mixture of dry air and pure oxygen inside a combustion zone with the resulting formation of a gas stream containing phosphorus pentoxide; next, the ... | 10/11/1988 |
| 4774005 | Process for working-up an aqueous silicohydrofluoric acid solution An aqueous solution of hexafluorosilicic acid containing 2 to 15 wgt % H2 SiF6 is worked up. To this end, the solution is admixed with particulate CaCO3 or Ca(OH)2 consisting to an extent of at least 70% of part... | 09/27/1988 |
| 4762693 | Process for working up heavy metal-containing residues originally from the decontamination of crude phosphoric acid Residue obtained upon the removal of heavy metal contaminants from crude phosphoric acid by means of a dialkyldithiophosphoric acid ester and adsorbent is worked up into ecologically reliable solid matter and into a heavy metal concentrate. The solid matt... | 08/09/1988 |
| 4713229 | Process for purifying phosphoric acid Wet process phosphoric acid is freed from heavy metal ions, especially from ions of cadmium, copper, mercury, lead and arsenic and optionally also from organic compounds and sulfuric acid. To this end, the phosphoric acid is contacted with a diorganyldith... | 12/15/1987 |
| 4705529 | Process for reducing the reactivity and improving the flow behavior of phosphorus pentoxide The reactivity of phosphorus pentoxide is reduced and its flow behavior improved. To this end, phosphorus pentoxide in the form of its hexagonal modification is annealed over a period of 0.5 to 8 hours at temperatures of 200° to 390° C.... | 11/10/1987 |
| 4683127 | Process for making wet-process phosphoric acid Wet-process phosphoric acid is made by subjecting a phosphate ore to processing treatment with a mineral acid resulting in the formation of a processed suspension. The formation of silicofluorides is obviated by adding, either to the phosphate ore or the ... | 07/28/1987 |
| 4629614 | Process for decontaminating phosphoric acid Wet-process phosphoric acid prepurified by liquid/liquid extraction with an organic solvent is decontaminated. To this end, the prepurified acid is first freed from residual extractant, then stripped with steam or hot gas, contacted with a dialkyldithioph... | 12/16/1986 |
| 4620966 | Process for defluorinating alkali metal phosphate solutions The disclosure relates to a process for defluorinating alkali metal phosphate solutions. To this end, the disclosure provides for an alkali metal phosphate solution neutralized to a pH-value of more than 6 and pre-purified to be stirred at 60° to 120° C... | 11/04/1986 |
| 4596703 | Process for purifying wet-processed phosphoric acid The disclosure relates to a process for purifying crude, concentrated wet-processed phosphoric acid. To this end, the disclosure provides: (a) for the organic solvent to be mixed with the starting product in a ratio by volume of more than 4:1 to effect the ext... | 06/24/1986 |
| 4540557 | Process for reducing the fluorine content in wet-processed phosphoric acid The disclosure relates to a process for reducing the fluorine content in wet-processed phosphoric acid. To this end, the disclosure provides for an acid extract in an organic solvent to be treated with an at least 45 weight % suspension of aluminum hydrox... | 09/10/1985 |
| 4540558 | Process for removing organic contaminants from wet-processed phosphoric acid The disclosure relates to a process for removing organic compounds from wet-processed phosphoric acid with the aid of an adsorbant. To this end the disclosure provides for the acid to be heated to at least 250° C. prior to treating it with the adsorbant.... | 09/10/1985 |
| 4539192 | Process for removing fluorine and organic compounds from prepurified wet processed phosphoric acid The disclosure provides for phosphoric acid to be freed in a single process stage from fluorine and organic contaminants. To this end, the disclosure provides for the acid to be introduced into the upper portion of a closed structural element, for it to b... | 09/03/1985 |
| 4525333 | Process for separating gallium and indium from aqueous solutions The disclosure relates to a process for separating gallium and indium from an aqueous solution by subjecting this latter to liquid/liquid extraction with the use of certain classes of organylphosphonic acid esters and separating the resulting liquid phase... | 06/25/1985 |