Matches 1 - 50 out of 99 1 2 >
Match Document Document Title
7148388 Process for preparing and olefinic hydrocarbon mixture  
In a process for preparing an olefinic hydrocarbon mixture comprising at least 5% by weight of mono-olefin oligomers of the empirical formula:
6673961 Processes for making surfactants via absorptive separation and products thereof  
Processes for making particularly branched, especially monomethyl-branched or nongeminal dimethyl-branched surfactants used in cleaning products; preferred processes comprising particular...
6617481 Process for producing phenyl-alkanes using an adsorptive separation section  
The present invention is a process for producing phenyl-alkanes by paraffin adsorptive separation followed by paraffin dehydrogenation and then by alkylation of a phenyl compound by a lightly...
6515169 Arylalkane sulfonate compositions produced using isomerization, dehydrogenation, and alkylation  
The present invention is a process for producing aryl-alkanes by paraffin isomerization followed by paraffin dehydrogenation and then by alkylation of an aryl compound by a lightly branched olefin....
6087529 Process for the stabilization of alkylbenzenesulphonates  
To improve color and odor characteristics of sulfonic acids and their derivatives while maintaining sludge and sulfuric acid reduction and good thermal stability, they are treated with at least one...
5936106 Process with porous means to control reaction rate and heat  
An process for forming a product which may be in a liquid phase is disclosed wherein a first reactant, preferably a liquid reactant, is directly fed into a reaction zone containing mixing elements...
5814110 Chemical compositions and use as fuel additives  
Distillate fuel is treated with additives whose structure match the crystal planes of the wax which crystallizes from the fuel to produce crystals below 4000 nanometres in size, suitable additive...
5596128 Sulfonating agent and sulfonation process  
A sulfonating agent represented by the general formula ##STR1## wherein the groups R 1 are the same or different and are each a lower alkyl group having 1 to 3 carbon atoms, n is an integer of 3,...
5583240 Exothermic process with porous means to control reaction rate and exothermic heat  
An exothermic process for forming a product which may be in a liquid phase is disclosed wherein a first reactant, preferably a liquid reactant, is directly fed into a reaction zone containing...
5344997 Alkylation of aromatics using a fluorided silica-alumina catalyst  
A fluorided silica-alumina catalyst, particularly one with a silica:alumina ratio in the range of 1:1-9:1 containing from 1 to 6 weight percent fluoride, is particularly effective in the liquid...
5302732 Use of ultra-low sodium silica-aluminas in the alkylation of aromatics  
Silica-aluminas having a sodium content less than about 0.1 weight percent show increased stability when used as a catalyst for the alkylation of aromatic compounds. Where such silica-aluminas are...
5243099 Synthesis of alpha-substituted alkadienes  
Organic polymer additive containing polar functional groups enhances the stability of palladium-containing catalysts for the telomerization of conjugated diolefins in the presence of active...
5233081 Method for sulfonation using porous absorber material  
A method for preparing a sulfonated compound with minimal or no waste products using a porous inorganic material absorber. The absorber is saturated with a compound to be sulfonated and then...
5026933 Olefin oligomerization with surface modified zeolite catalyst  
A process for producing substantially linear hydrocarbons by oligomerizing a lower olefin at elevated temperature and pressure which comprises contacting the lower olefin under...
4973686 Process for the sulfonation and/or sulfatization of organic components with SO.sub.3 in an organic reaction medium  
The invention relates to the use of selected carboxylic acid esters which are liquid under reaction conditions and correspond to general formula (I) X--COOR 1 ...
4943656 Process for the production of polyalkylaromatic polysulfonic acids and recovery by heavy phase separation  
This invention relates to novel processes for the production of enhanced yields of polyalkylaromatic polysulfonic acids. More particularly, the invention pertains to processes for sulfonating...
4618458 Sulphonic acids and sulphonates  
Purification of sulphuric acid rich sulphonic acids particularly those prepared by oleum sulphonation, by water washing, treatment with an olefine and final heat treatment.
4614597 Recovery of oil and sulfonate from filter cake  
A process for recovering oil containing dissolved alkaline earth metal sulfonate from siliceous filter cakes containing such oils by mixing the filter cake with sufficient 0.5 to 16N sulfuric acid...
4390475 Thin film type sulfonation process of alkylbenzene  
Alkylbenzene is sulfonated in a thin film type sulfonation process by adding 2 through 20 parts by weight, based on 100 parts by weight of said alkylbenzene, of alkylbenzene sulfonic acids having...
4308215 Sulfonation process  
A process for the sulfonation of organic compounds comprises contacting an organic compound with a sulfonating agent while the organic compound and the sulfonating agent are substantially separated...
4267119 Sulfonating method  
An organic reactant is sulfonated by injecting it into a stream of gas comprising sulfur trioxide, at a venturi, and the resulting reaction mixture is quenched with a stream of cooled, recycled...
4261916 Sulph(on)ation process  
An orifice plate mixer for mixing 2 fluids has an axial orifice perpendicular to the plate through which bore a first fluid passes and a port in the internal wall of the orifice through which the...
4251456 Method for treating effluent gas from sulfonation process  
A relatively large amount of SO 2 effluent gas from a sulfonation process is converted to SO 3 and recycled back to the sulfonation process as part of the SO 3 sulfonating agent. The rest of the...
4226796 Sulph(on)ation process  
Sulph(on)ation of organic feedstocks is performed with undiluted sulphur trioxide in a recycle loop reactor in which the feedstock is diluted with its recycled sulph(on)ation product, contact of...
4220739 Method for sulfonating organic materials  
Organic materials such as polyethylene, polystyrene and polypropylene are more efficiently sulfonated by contacting them with an essentially dry gaseous mixture of sulfur trioxide and chlorine....
4163751 Thin film reaction process  
A process is disclosed which comprises the steps of introducing a stream of the organic liquid onto a plurality of rotating reacting surfaces, rotating the reacting surfaces at a velocity such that...
4113765 Continuous process for sulfonating alkyl aromatics  
Disclosed is a continuous process for the sulfonation of an alkylaromatic reactant involving heating liquid sulfur trioxide in a vaporizer and mixing this sulfur trioxide gas stream with a...
4113438 Sulfonating apparatus  
An apparatus is provided wherein organic reactant is sulfonated by injecting it into a stream of gas comprising sulfur trioxide, at a venturi, and the resulting reaction mixture is quenched with a...
4102911 Sulfonating or sulfating method  
A method for reacting sulfur trioxide and sulfateable or sulfonateable liquid organic compounds such as alcohols, and unsaturated or aromatic compounds is disclosed which comprises contacting said...
4086256 Process for sulfonation  
Sulfonation of a sulfonatable organic compound is effected by means of a two-stage reaction with an SO 3 -containing gas, in which the first-stage reaction is carried out by flowing, in parallel...
4036875 Process for the continuous sulphonation of alkyl aromatic hydrocarbons  
An improved process is provided for the continuous sulphonation and/or sulphation of organic substances with sulphur trioxide gas mixed with an inert gaseous diluent, at an increased production...
3971815 Acid mix process  
Low viscosity detergent acid mixes are prepared by reacting an ethoxylated alcohol, alkyl benzene, fatty alcohol, or other sulfatable detergent precursor with a sulfating agent in the presence of...
3946037 Sulfonation of aromatic compounds  
A process for the sulfonation of aromatic compounds wherein an aromatic substance consisting of one or more aromatic compounds is brought to boiling at a temperature not greater than 100°C under a...
3941810 Sulfonation of aromatic compounds in the presence of solvents  
A process for the sulfonation of aromatic compounds wherein an aromatic substance consisting of one or more aromatic compounds susceptible to the action of sulfur trioxide is formed into a reactant...
3931273 Method for sulphonatizing and sulphatizing organic compounds with sulphur trioxide and apparatus therefor  
A continuous method for sulphonating and sulphating liquid organic compounds with gaseous sulphur trioxide diluted with inert gas in a plurality of externally cooled, parallel reaction tubes with...
3925441 Isothermal sulfonation process  
In the process for sulfonation by contacting a falling thin film stream of organic compound with a stream of SO 3 -inert gas in parallel, an improved process for isothermal sulfonation producing...
3918917 Apparatus for reacting organic compounds and sulfur trioxide  
A multi-tube thin-film type reaction apparatus for the reaction of an organic compound and gaseous sulfur trioxide, said apparatus comprising a plurality of tube assemblies comprising a reaction...
3902857 Thin film reactor  
A process is disclosed which comprises the steps of introducing a stream of the organic liquid onto a plurality of rotating reacting surfaces, rotating the reacting surfaces at a velocity such that...
3891689 Continuous sulphonation process  
A sulphonation process involving a liquid organic material and sulphur trioxide is conducted in at least two separate steps, an initial step being conducted under conditions defined by a...
3884643 Device for performing highly exothermic reactions  
Reaction between a liquid reagent and a gaseous reagent wherein at least one of the products is a liquid is carried out by first mixing the liquid reagent with liquid product, so that the reaction...
3816354 ALKYL AROMATIC POLYSULFONATE SURFACTANTS  
Mixed diphenylalkanes, which are obtained as a by-product in the process of alkylating benzene with olefins or partially chlorinated paraffins, are converted into low cost biodegradable surfactants...
3803058 METHOD OF SULFONATING MIXTURES OF OLEFIN AND AROMATIC HYDROCARBONS  
Improved processes for obtaining biodegradable detergents of good color using less sulfonating agents and minimizing or abolishing the requirement for decoloring; in which a mixture including...
3551460 PROCESS FOR SULPHONATION  
3535339 PROCESS AND APPARATUS FOR THE CONTINUOUS REACTION OF ORGANIC COMPOUNDS WITH UNDILUTED SULFUR TRIOXIDE  
3476800 OIL-SOLUBLE SULFONIC ACIDS AND PROCESS FOR MANUFACTURE THEREOF  
3465047 PROCESS FOR PRODUCING 2,6-XYLENOL  
3462474 SULFONATION PROCESS  
3438743 APPARATUS FOR SULPHONATING AND/OR SULPHATING ORGANIC COMPOUNDS CONTROLLING THE RATE OF FEED OF THE REACTANT BY MEASUREMENT OF THE VISCOSITY OF THE REACTION MIXTURE  
3427342 CONTINUOUS SULFONATION PROCESS  
3415874 Process of reacting sulphur trioxide  
Matches 1 - 50 out of 99 1 2 >