| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 562115000 | Processes (e.g., neutralization, stabilization, etc.) | 13 |
| 20090023951 | Polyalkylated Arylalkyl Sulfonic acids and their salts - The present invention discloses a process for producing polyalkylated arylalkyl sulfonic acids by reacting arylalkyl sulfonic acids with olefins. The polyalkylated arylalkyl sulfonic acids may be further neutralized with alkalis or amines to form the corresponding sulfonated salts. The present invention also makes possible manufacture of polyalkylated arylalkyl sulfonic acids as first intent products using an inexpensive and simple reaction. The structure of the polyalkylated arylalkyl sulfonic acids produced using the process described in the present invention is shown below: | 01-22-2009 |
| 20110237826 | Molecular Sieve Composition (EMM-10-P), Its Method of Making, and Use for Hydrocarbon Conversions - This invention relates to a crystalline molecular sieve having, in its as-synthesized form, an X-ray diffraction pattern including d-spacing maxima at 13.18±0.25 and 12.33±0.23 Angstroms, wherein the peak intensity of the d-spacing maximum at 13.18±0.25 Angstroms is at least as great as 90% of the peak intensity of the d-spacing maximum at 12.33±0.23 Angstroms. This invention also relates to a method of making thereof. | 09-29-2011 |
| 20120330054 | METHOD AND APPARATUS FOR CONTINUOUS SULFONIZATION OF DISCRETE ARTICLE - An apparatus for continuous sulfonization of discrete articles comprising a feeder box for drying the discrete articles with ultra-dry air, a sulfonization chamber for treating the discrete articles with sulfur trioxide gas, a conveyor assembly for transporting the discrete articles from the feeder box to the sulfonization chamber, and a neutralizing tank for treating the discrete articles with neutralizing fluid. The sulfonization chamber includes a rotating dial plate with a circular periphery and an upper surface extending radially from and rotatable about a center axis (A) for receiving the discrete articles at the circular periphery. A plurality of arcuate guides extend perpendicularly from a guide arm toward the rotating dial plate and are spaced radially outward from one another along a radial (R) extending radially from the center axis (A) for moving the discrete articles radially inward in a spiral path during rotation of the rotating dial plate. | 12-27-2012 |
| 20140378700 | LIQUID PHASE DEHYDROGENATION OF HEAVY PARAFFINS - A liquid phase dehydrogenation process is described. The process includes reacting a liquid feed stream containing C | 12-25-2014 |
| 562116000 | Decarboxylation, hydrogenation or formation of carbon-to-carbon unsaturation | 3 |
| 20090299091 | PROCESS FOR OBTAINING HIGHLY SOLUBLE LINEAR ALKYLBENZENE SULFONATES - The present invention relates to a process for obtaining a highly soluble linear alkylbenzene sulfonate with an adjustable 2-phenyl isomer content and an extremely low sulfonation color. In which a catalytic system based on highly stable solid catalysts and with a high selectivity for linear monoalkylated compounds is used. | 12-03-2009 |
| 20130253219 | Production of Alkane Sulfonates - A process for the production of olefin sulfonates is presented. The process comprising generating olefins from normal alkanes through a dehydrogenation unit to produce a mixture of alkanes and alkenes. The mixture is sulfonated to react the olefins and generate olefin sulfonates. The olefin sulfonates are separated from the normal alkanes to produce a product stream, with the normal alkanes recycled to the dehydrogenation unit. | 09-26-2013 |
| 20140336409 | PROCESS FOR PREPARING AN INTERNAL OLEFIN SULFONATE - The invention relates to a process for preparing an internal olefin sulfonate, comprising sulfonating an internal olefin into sulfonated internal olefin followed by contacting sulfonated internal olefin with a base containing solution, wherein the molar ratio of internal olefin to solvent for the base is higher than 0.06. Further, the invention relates to an internal olefin sulfonate obtainable by said process. | 11-13-2014 |
| 562118000 | Oxidation of organic sulfur compounds to sulfonic acids | 1 |
| 20110263894 | METHOD FOR COMPRESSING GASES CONTAINING HYDROGEN SULFIDE - A process for compressing a hydrogen-sulfide-comprising gas stream, which comprises
| 10-27-2011 |
| 562120000 | Formation of sulfonic acids or sulfonic acid salts utilizing inorganic sulfonating agents (e.g., reaction of alcohols or alkyl halides with sulfurous acid, etc.) | 3 |
| 562122000 | Sulfurous acid or salt thereof reacted with unsaturated hydrocarbon | 1 |
| 20100010259 | Process for producing anhydrous peroxydisulfuric, acid using sulfur trioxide recovered from a waste comprising sulfuric acid - A process for producing peroxydisulfuric acid from a waste comprising substantially sulfuric acid, whereby the sulfuric acid is separated into sulfur trioxide and substantially water which is removed as a waste. The recovered sulfur trioxide is reacted with hydrogen peroxide to produce peroxydisulfuric acid which is fed to a methane-sulfonation process resulting in formation of sulfuric acid radicals. The sulfuric acid radicals react with methane producing methane radicals resulting in formation of sulfuric acid. The sulfuric acid from the methane-sulfonation process is recovered, reprocessed, and the process is repeated. | 01-14-2010 |
| 562123000 | Utilizing sulfur trioxide, oleum, sulfuric acid or halosulfonic acid | 2 |
| 20110152571 | ISOMERIZED ALPHA OLEFIN SULFONATE AND METHOD OF MAKING THE SAME - The present invention is directed to an isomerized alpha olefin sulfonate and a method of making the same wherein the isomerized alpha olefin sulfonate is derived from sulfonating an isomerized alpha olefin with sulfur trioxide in the presence of air thereby producing an isomerized alpha olefin sulfonic acid, wherein the isomerized alpha olefin is derived from the isomerization of C | 06-23-2011 |
| 20110282097 | ISOMERIZED ALPHA OLEFIN SULFONATE AND METHOD OF MAKING THE SAME - The present invention is directed to an isomerized alpha olefin sulfonate and a method of making the same wherein the isomerized alpha olefin sulfonate is derived from sulfonating an isomerized alpha olefin with sulfur trioxide in the presence of air thereby producing an isomerized alpha olefin sulfonic acid, wherein the isomerized alpha olefin is derived from the isomerization of C | 11-17-2011 |
| 562124000 | Purification or recovery | 2 |
| 20100081840 | PROCESS FOR PRODUCING VINYL SULFONIC ACID - The subject invention provides:
| 04-01-2010 |
| 20100087674 | Method For Isolating Concentrated Paraffin Sulfonic Acids - The invention relates to a method for isolating concentrated paraffin sulfonic acids from reaction mixtures that are produced during the sulfoxidation of n-paraffins, from which a major part of the sulfuric acid and the paraffin was removed by phase separation and which contain, in addition to the free paraffin sulfonic acids, n-paraffins, water and optionally minor amounts of sulfuric acids. The method according to the invention is characterized by removing paraffin and optionally residual water by vacuum distillation. The paraffin sulfonic acids obtained by distillation have a content of more than 85% by weight of the active substance. The material is pale, odorless and low in sulfuric acid and paraffin. | 04-08-2010 |
