39 results about "Linear alkylbenzene" patented technology

A surfactant composition comprising a mixture of linear alkyl benzene sulfonates (LAS) surfactants having hydrocarbon chains of different lengths, wherein 50 % by weight or more of the linear alkyl benzene sulfonates contain a hydrocarbon chain derived from saturated or unsaturated fatty acids with 12 carbon atoms, can be obtained using Litsea seed oil as a source of the hydrocarbon chain and may be used in laundry detergents, cleaning compositions, hair care compositions or dishwashing detergents.

The application relates to the technical field of synthetic rubber, in particular to a nitrile rubber, a preparation method and application thereof, wherein the preparation method adopts at least potassium saponification soap and / or sodium saponification soap of disulfated rosin acid, C 10 -C 13 A composite emulsifier system composed of linear alkyl benzene sulfonic acid and naphthalene sulfonic acid formaldehyde condensate sodium salt and a low-temperature emulsion polymerization process, and the obtained nitrile rubber can be used in the field of oil-resistant sealing in a hydraulic oil operation environment.

Processes for producing mono-methyl alkylbenzenes from natural oils are described. The processes includes a linear selective cracking process to crack C14+ chains into C9 to C14 chains which are useful for making linear alkylbenzene for use in detergents and a hydroisomerization step to produce paraffins with mono-methyl branching which can be reacted with benzene to form the mono-methyl alkyl benzenes.

A formulation comprising 10-90 wt% of an ethoxylated cardanol sulphonic acid represented by Formula (I) wherein n = 7-20; R = H or SO3H; and 90-10 wt% of linear alkyl benzene sulfonic acid is disclosed.

A solid detergent composition comprising a plurality of detergent granules in a format of agglomerates, extruded particles or flakes, wherein each of said detergent granules comprises a surfactant system and precipitated calcium carbonate, wherein said detergent granules are characterized by a surfactant system content ranging from 5% to 90% and a precipitated calcium carbonate (PCC) content ranging from 0.1% to 15%, by total weight of said detergent granules, wherein said surfactant system comprises a C10 -C20 linear alkyl benzene sulphonate (LAS), wherein the weight ratio of LAS to PCC is from 2.1 to 15, wherein said detergent granules comprise less than 2%, by total weight of said detergent granules, of an additional flow aid which is selected from the group consisting of aluminosilicates, silicon dioxide, bentonite, clay, ground sodium carbonate, carboxymethyl cellulose (CMC) and any combinations thereof, wherein the surfactant system and the precipitated calcium carbonate are present in a form of mixture within the detergent granules. A method of making the solid detergent composition is also disclosed.

The invention belongs to the technical field of preparation of industrial catalysts, and discloses a catalyst for dehydrogenation of long-chain alkane containing rare earth metal as well as preparation and application of the catalyst. According to the catalyst, a specific type of rare earth metal is introduced as an electronic and structural cocatalyst, so that the selectivity of the catalyst to straight-chain monoolefine is remarkably improved, and the carbon deposition resistance and the thermal stability of the catalyst are greatly enhanced, thereby prolonging the service life and the regeneration period of the catalyst. The preparation method of the catalyst is simple in process and easy for industrial production, and can realize highly uniform dispersion of the active component and the auxiliary agent on the carrier. The catalyst is a long-chain alkane dehydrogenation catalyst which still has high activity, high selectivity and high stability under the condition of low platinum loading capacity (0.15%). The method has the advantages that side reaction and carbon deposition generation can be effectively inhibited, the service life is remarkably prolonged, and the method has important industrial application value for reducing the production cost of the linear alkylbenzene and improving the product quality.

The invention discloses a liquid composition aiming at yellowing of white clothes and application of the liquid composition in a clothes detergent, and particularly relates to the field of daily chemical washing, and the liquid composition is prepared from the following components in parts by mass: 8-15 parts of a structure modified surfactant, 7.8-23.5 parts of other surfactants, 0.3-1 part of a targeted enzyme preparation and 0.5-2 parts of a composite chelating agent; the structure modification surfactant is hydroxyl modified linear alkyl sodium benzenesulfonate; the detergent prepared according to the formula is excellent in whiteness, fabric fiber wear resistance, tensile strength and the like, can effectively prevent white clothes from yellowing, does not damage fabric fibers, meets market requirements and prolongs the service life of the clothes.

The invention discloses a method for removing 2, 5-diphenyloxazole in linear alkylbenzene and application thereof.The linear alkylbenzene containing 2, 5-diphenyloxazole is subjected to shallow sulfonation in the presence of catalysts such as a 4A molecular sieve, activated carbon, kaolin and bentonite at the temperature of 0-30 DEG C, the content of 2, 5-diphenyloxazole in the linear alkylbenzene can be reduced to 6 ppm or below from 3000 ppm through simple filtration, and the 2, 5-diphenyloxazole in the linear alkylbenzene can be reduced to 6 ppm or below. And sulfonating through an SO3 membrane reactor to obtain an alkyl benzene sulfonic acid superior product.

The invention provides a method for steam development of a heavy oil reservoir through a high-temperature-resistant oil-displacing agent, and relates to the technical field of oilfield development. The method comprises the steps that water is added into a high-temperature-resistant oil-displacing agent to prepare a high-temperature-resistant oil-displacing agent solution, and then the high-temperature-resistant oil-displacing agent solution is continuously injected into a steam injection well in the steam flooding exploitation process of the heavy Wherein the high-temperature-resistant oil displacement agent is prepared from the following raw materials in parts by weight: 35 to 50 parts of linear alkylbenzene sulfonate, 10 to 15 parts of fatty alcohol-polyoxyethylene ether, 2 to 5 parts of lignin and 3 to 8 parts of amino-terminated polyurethane modified TiO2. Compared with traditional steam flooding, the high-temperature-resistant oil displacement agent is used for assisting steam development, the swept area can be increased, and the recovery efficiency can be effectively improved.

A water soluble unit dose article comprising a concentrated laundry detergent composition wherein the laundry detergent composition comprises: 45% to 65%, by weight of the composition, of a non-soap surfactant comprising an anionic non-soap surfactant and a non-ionic surfactant, wherein the anionic non-soap surfactant comprises a linear alkylbenzene sulfonate; from 1% to 6% by weight of the composition of a fatty acid; from 5% to 20% by weight of the composition of an organic solvent; and 5% to 25% water by weight of the composition wherein the nonionic surfactant comprises an alcohol alkoxylate surfactant and the weight ratio of the non-soap anionic surfactant to the nonionic surfactant is less than 2: 1.

A liquid composition comprising (A) linear alkyl benzene sulphonate, (B) methyl ester ethoxylate and (C) further anionic surfactant, wherein the wt. ratio (C) / (A) is from 1 to 0, and the wt. ratio (B) / (A)+(B) is from 0.2 to 9, and from 0.5 to 10% wt. alkoxylated zwitterionic di- or polyamine polymer, wherein the level of surfactant in the formulation is from 10 to 60 wt %.

The present invention relates to a solid laundry composition. It particularly relates to a solid laundry composition having a desirable foam profile during the laundering process. There remains a need for a solid laundry composition which is an environmentally friendly composition and includes lowered levels of synthetic detergents while providing desired foaming profile. It is an object of the present invention to provide a solid laundry composition which provides good foam profile and good cleaning performance. The present inventors have found that a solid laundry composition having 0 wt.% linear alkyl benzene sulphonate surfactant when present in combination with specific surfactant of general formula (Ia) or (Ib) and / or general formula (IIa) or (IIb) and alkali metal carbonate surprisingly provides good foam profile and good cleaning performance. The foam profile involves formation of good foam in the wash stage while eliminating the foam quickly during the rinsing stage. This benefit was preferably found across different consumer washing habits and fabric types present in the wash load.

A method of treating a pyrolysis oil including feeding pyrolysis oil and an aromatic to a reactor to perform an alkylation reaction in the reactor with a catalyst is provided. The alkylation reaction produces linear alkylbenzenes to be fed to an extractor, where the linear alkylbenzenes and excess aromatic are extracted and fed to a separator. The separator then separates the linear alkylbenzenes from the excess aromatic.

The present application relates to the technical field of molecular sieve preparation, and discloses a modified molecular sieve and a preparation method and application thereof.A modified molecular sieve, wherein the modified molecular sieve comprises a molecular sieve and a rare earth element, the modified molecular sieve has a beta cage and a supercage structure, the R value of the modified molecular sieve is 10-35%, and the K value of the modified molecular sieve is 1-20; wherein the R value represents the mass fraction of the rare earth element in the modified molecular sieve in terms of an oxide, and the K value represents the ratio of the content of the rare earth element in the beta cage to that in the supercage. The modified molecular sieve is loaded with a relatively large amount of the rare earth element, and the distribution of the rare earth element in the beta cage and the supercage is regulated, so that the performance of the molecular sieve in an alkylation reaction is improved, and the molecular sieve exhibits excellent performance in catalytic synthesis of a linear alkylbenzene target product in a molecular sieve alkylation reaction.

A detergent composition includes from 1 to 50 wt. % of a surfactant system by weight of the composition. The surfactant system includes greater than 30 wt. % nonionic surfactant by weight of the surfactant system, less than 30 wt. % linear alkyl benzene sulfonate surfactant by weight of the surfactant system, and a surfactant selected from the group consisting of sodium lauryl sulfate, highly branched alkyl sulfate, amine oxide, alkyl glycol sulfate, or combinations thereof. The detergent composition further includes at least 0.5 wt. % organic acid by weight of the composition. The composition is substantially free of elemental boron complexes, and the composition has a pH of from 5.4 to 6.7.

Composition comprising a bleaching agent, a bleach activator, 0.001-1.0 wt% soil suspending agent, 0.01-2 wt% cyclic sulfonimine bleach catalyst, 0.5-5 wt% linear alkyl benzene sulfonate anionic surfa

This invention belongs to the field of component quantitative analysis technology and discloses a quantitative analysis method for the main components of insulating media, including the following steps: S1, extraction and concentration of the sample to be tested; S2, establishment of a multiple reaction monitoring (MRM) analysis method based on GC-MS / MS; S3, detection according to the MRM analysis method to qualitatively confirm each component in the linear alkylbenzene mixed oil; S4, establishment of a standard curve using the external standard method, and calculation of the content of the target component in the sample to be tested using the standard curve. This invention uses GC-MS / MS technology, combined with MRM acquisition mode, retention time and characteristic ion abundance ratio as dual qualitative standards, and establishes a standard curve for quantitative analysis of the target components. The method demonstrates good separation effect, strong anti-interference ability, and accurate analytical results for the main components of the linear alkylbenzene mixed oil.

The present invention relates to a detergent particle comprising a linear alkylbenzene sulfonate (LAS) anionic surfactant and a water-soluble polymer comprising at least one structural unit of polyethylene glycol wherein the water-soluble polymer has a PEG content of from 30% to 100%.

This invention relates to solid particles of a linear alkylbenzene sulfonate anionic detergent surfactant. These particles contain a polycationic salt of linear alkylbenzene sulfonic acid having both magnesium and sodium cations. The weight ratio of the magnesium salt of linear alkylbenzene sulfonic acid to the sodium salt of linear alkylbenzene sulfonic acid is in the range of 0.6:1 to 9:1.

The invention relates to the field of linear alkylbenzene production, in particular to a linear alkylbenzene production method and system.The method comprises the steps that a front reaction zone and a rear reaction-regeneration zone are arranged, feeding materials of the front reaction zone comprise benzene and long-chain olefin, feeding materials of the rear reaction-regeneration zone are reaction materials of the front reaction zone, and feeding materials of the rear reaction-regeneration zone are reaction materials of the rear reaction-regeneration zone; the olefin conversion rate of the front reaction zone is 90-99%; after the reaction is finished, the overall conversion rate of the olefin is greater than 99.9%; the rear reaction-regeneration area comprises at least two reactors which are connected in parallel and are used for realizing reaction-regeneration switching of the rear reaction-regeneration area; wherein the bromine index of the linear alkylbenzene mixture at the outlet of the reactor in the rear reaction-regeneration area is higher than 30mgBr / 100g, the reaction is stopped for regeneration, and feeding is switched to other reactors in the rear reaction-regeneration area for reaction. Through the process improvement, the stability of the whole reaction system and the product quality are ensured, the energy consumption can be greatly reduced, and the industrial application value is extremely high.

The present invention relates to a simple and cost-effective method for purifying linear alkylbenzene (LAB) compounds. The method includes a purification / adsorption step including contacting the LAB compound with activated carbon to obtain a purified LAB compound and waste activated carbon, and a regeneration / reactivation / desorption step including contacting the waste activated carbon with benzene to obtain regenerated activated carbon. The method of the invention can be conveniently implemented in a continuous mode in an industrial plant having a system in which two or more reactors run in parallel, with at least one reactor being in an adsorption phase and at least another reactor being in a desorption phase. Treatment of LABs with activated carbon allows for removal or minimization of impurities that result in color and affect the quality of LABs as well as their end product linear alkylbenzene sulfonates (LAS).

The application relates to the technical field of synthetic rubber, in particular to a nitrile rubber and a preparation method and application thereof. 10 ‑C 13 The composite emulsifier system is composed of linear alkyl benzene sulfonic acid and naphthalene sulfonic acid formaldehyde condensate sodium salt, and a high-temperature emulsion polymerization process is adopted, so that the obtained nitrile rubber has high tensile strength.

Processes for converting Fischer-Tropsch products into linear alkyl benzene (LAB) are described. By selecting a portion of the Fischer-Tropsch product stream, it can be fed to the alkylation reaction zone. Some pretreatment steps can be eliminated or reduced. Unreacted paraffins can be dehydrogenated and recycled to the alkylation reaction zone.

A detergent composition comprising from 1% to 50% by weight, based on the weight of the composition, of a surfactant system. The surfactant system comprises greater than 30% by weight, based on the weight of the surfactant system, of a nonionic surfactant, less than 30% by weight, based on the weight of the surfactant system, of a linear alkylbenzene sulfonate surfactant, and a surfactant selected from the group consisting of sodium lauryl sulfate, a highly branched alkyl sulfate, an amine oxide, an amine oxide, an amine oxide, and the like. And a surfactant selected from the group consisting of an alkyl glycol sulfate, or a combination thereof. The detergent composition further comprises at least 0.5% by weight of an organic acid, based on the weight of the composition. The composition is substantially free of boron complexes, and the composition has a pH of from 5.4 to 6.7.

Processes for converting Fischer-Tropsch products into linear alkyl benzene (LAB) are described. By selecting a portion of the Fischer-Tropsch product stream, it can be fed to the alkylation reaction zone. Some pretreatment steps can be eliminated or reduced. Unreacted paraffins can be dehydrogenated and recycled to the alkylation reaction zone.

A detergent composition includes from 1 to 50 wt.% of a surfactant system by weight of the composition. The surfactant system includes greater than 30 wt.% nonionic surfactant by weight of the surfactant system, less than 30 wt.% linear alkyl benzene sulfonate surfactant by weight of the surfactant system, and a surfactant selected from the group consisting of sodium lauryl sulfate, highly branched alkyl sulfate, amine oxide, alkyl glycol sulfate, or combinations thereof. The detergent composition further includes at least 0.5 wt.% organic acid by weight of the composition. The composition is substantially free of elemental boron complexes, and the composition has a pH of from 5.4 to 6.7.

The utility model relates to a device for dehydrogenating normal paraffin into olefin, for the production of linear alkylbenzene, the device includes: deoxidation unit (110), it communicates with triglyceride feed pipeline (105), C9 to C14 pipeline (115) and C14+ pipeline (120), wherein C9 to C14 pipeline (115) and C14+ pipeline (120) communicate with deoxidation unit (110), first adsorbent bed, which contains the first adsorbent including alkali metal cation or alkaline earth metal cation exchange X-zeolite, communicate with first pipeline (130), purification pipeline (145), which communicates with the first adsorbent bed, dehydrogenation unit (150), which communicates with purification pipeline (145), dehydrogenation pipeline (155), which communicates with dehydrogenation unit (150).

The invention discloses a salt-resistant and temperature-resistant LAS compound surfactant and a preparation method thereof, and the salt-resistant and temperature-resistant LAS compound surfactant comprises the following components in percentage by weight: 15-30% of linear alkylbenzene sulfonate, 10-25% of an auxiliary surfactant, 8-18% of a salt-resistant agent, 5-15% of a temperature-resistant agent, 2-6% of a stabilizer and the balance of deionized water. By reasonably compounding the auxiliary surfactant, the salt-resistant agent, the temperature-resistant agent and the stabilizer, the salt-resistant and temperature-resistant performance of the LAS surfactant is remarkably improved. Fatty alcohol-polyoxyethylene ether and cocamidopropyl betaine in the auxiliary surfactant have a good synergistic effect with LAS, so that the surface tension can be reduced, and the surface activity can be improved; salt-resistant agents sodium gluconate and sodium citrate can form a stable complex with metal ions, so that the influence of salts on the performance of the surfactant is reduced; the temperature-resistant agent polyacrylamide and polyethylene glycol can maintain the stability of the system at high temperature and prevent the surfactant from losing efficacy; the stabilizers glycerol and sorbitol can improve the compatibility and stability of the system.

The present invention relates to a production method and apparatus for alkylbenzenes from natural oils and kerosene and the co-production of a renewable content hydrocarbon composition, e.g. a renewable content hydrocarbon fluid composition and / or a renewable content fuel composition, without a hydrocracking or isomerization step. The invention also relates to a hydrocarbon fluid composition, to the use of said composition as hydrocarbon fluid and to an apparatus for the manufacture of linear alkylbenzene and a hydrocarbon composition.

The invention relates to the technical field of environmental engineering, in particular to a linear alkylbenzene degradation stirrer which comprises a shell, the bottom of the shell is rotationally connected with a stirring assembly for stirring liquid, and one end of the stirring assembly extends into the shell and is fixedly connected with a driving assembly for providing power for the stirring assembly; grips are symmetrically arranged on the two sides of the shell, and control assemblies for controlling the rotating speed of the driving assembly are arranged on the grips; the side, away from the grip, of the shell is fixedly connected with a supporting ring which is close to the stirring assembly and sleeved with the driving assembly. A cavity is formed in the end, away from the shell, of the supporting ring. Through the synergistic effect of transverse and longitudinal stirring, not only is efficient emulsification and refined dispersion of linear alkylbenzene in liquid realized, but also the contact area and the contact frequency between the linear alkylbenzene and microbial communities distributed in different water layers are remarkably increased, so that the biodegradation rate of the linear alkylbenzene is effectively promoted.