71 results about "P-Cresol" patented technology

The invention discloses a coating type high-molecular flame-retardant material. The composite material is prepared from the following components: organic silicon modified epoxy resin, a bio-based castor oil derivative, hydroxyapatite, carbon nanofibers, expanded graphite, ammonium polyphosphate, zinc borate, nano silicon dioxide, molybdenum oxide, microencapsulated red phosphorus, magnesium hydroxide, melamine cyanurate, aluminum diethylphosphinate, pentaerythritol, trihydroxymethyl phosphine oxide and a silane coupling agent. The coating is prepared from a titanate coupling agent, stearic acid, polyethylene glycol, 2, 6-butylated hydroxytoluene, triphenyl phosphite, 2, 4-dihydroxybenzophenone, sebacic diester, polytetrafluoroethylene micro powder, a modified polydimethylsiloxane flatting agent, organic montmorillonite, a polyether modified silicon defoaming agent and a solvent. The invention has the beneficial effects of high flame retardant efficiency, environmental friendliness, excellent comprehensive performance and excellent processability.

The present invention discloses a lubricating oil additive for a flexible fuel engine, which comprises the following raw materials: overbased calcium alkyl salicylate, overbased sulfurized calcium alkylphenate, 4-pyridine ethylpropylene polymer, alkyl diphenylamine, 2,6-di-tert-butyl a-dimethylamino-p-cresol, and nano boron nitride BNNS. The present invention also discloses a lubricating oil composition for a flexible fuel engine, which comprises the above-mentioned lubricating oil additive for a flexible fuel engine, and further comprises an emulsifier and a base oil. The present invention can solve the key problem that a large amount of water is generated during the work combustion process of a flexible fuel engine, resulting in hydrolysis of dispersants, friction reducers and anti-wear agents in engine oil, damage to the molecular structure and loss of lubricating function. At the same time, it also solves the technical problem of difficult low-temperature cold start of a flexible fuel engine caused by water.

The invention relates to the technical field of chemical product separation equipment, and particularly discloses a reaction crystallizer for separating and refining m-cresol and p-cresol and a crystallization method. A sealing box; a filter screen; a tapered tube; and a discharge pipe. The mother liquor drives p-cresol crystals to be sprayed out from the spraying pipe, the sprayed p-cresol crystals impact the filter screen, so that the p-cresol crystals are scattered and broken, an m-cresol solution wrapped in the crystals is splashed out at the moment to be separated from the crystals, and the splashed m-cresol solution is discharged through the filter screen. Therefore, the m-cresol solution can be effectively prevented from being wrapped in the p-cresol crystal, so that the purity of the m-cresol and the p-cresol after separation is effectively prevented from being reduced.

The invention relates to the technical field of catalytic material synthesis, and discloses a preparation method of a modified tin-titanium-silicon molecular sieve catalyst, which comprises the following steps: S1, mixing a silicon source, a titanium source, a tin source, an alkali source, a template agent, a surfactant and water to obtain a first mixture; s2, performing hydrothermal reaction on the first mixture in the step S1, and washing, drying and roasting an obtained second mixture to obtain tin-titanium-silicon molecular sieve powder; and S3, mixing and contacting the tin-titanium-silicon molecular sieve powder obtained in the step S2 with an organic solution of organosiloxane, and then drying to obtain the modified tin-titanium-silicon molecular sieve catalyst. According to the modified tin-titanium-silicon molecular sieve catalyst provided by the invention, a catalytic activity center is mainly positioned in a molecular sieve pore channel, and when the catalyst is used for catalyzing a reaction for preparing cresol through toluene hydroxylation, effective shape-selective catalysis can be realized, so that the selectivity of o-cresol and p-cresol can be improved, and particularly the selectivity of the o-cresol can be improved.

The utility model relates to a process device for hydrocarbonylation reaction of m-cresol and p-cresol under catalysis of solid acid. An outlet of a premixing tank is communicated with a first centrifugal pump and then is communicated with the lower part of a reactor; a gas outlet of the first steel cylinder is communicated with the reactor; the lower part of the reactor is sequentially communicated with a second centrifugal pump and a liquid storage tank. The premixing tank is used for pre-stirring and mixing an m-cresol solution and a solid acid catalyst to form reaction slurry; the first centrifugal pump is used for introducing reaction slurry into the reactor; the high-pressure isobutene liquid in the first steel cylinder is depressurized into gas and then enters the reactor; cresol, a solid acid catalyst and isobutene are mixed in the reactor at a set temperature for a catalytic alkylation reaction; the second centrifugal pump is used for extracting the completely reacted alkylation mixed product out of the reactor, the alkylation mixed product is stored in the liquid storage tank, and the solid acid catalyst is left to stand and settled, so that in-situ separation of a liquid-phase product and a solid-phase catalyst is realized.

The invention discloses a method for extracting o-isopropyl phenol and 2-ethyl-6-cresol, which comprises the following steps: adding a 2, 4 / 2, 5-xylenol mixture containing o-isopropyl phenol and 2-ethyl-6-cresol, a catalyst and diisobutylene into a reactor for reaction; the method comprises the following steps of: sampling and analyzing to be qualified, filtering, carrying out low-vacuum reduced pressure distillation on filtrate to obtain diisobutylene and the previous component for mechanical application, and then carrying out improved vacuum reduced pressure distillation to sequentially obtain 99% of 2, 5-xylenol, 99% of 6-isooctyl-2, 4-xylenol and 99% of 4-isooctyl-2-ethyl-6-cresol and a kettle residue of 4, 6-diisooctyl-2-isopropyl phenol; the method comprises the following steps: respectively decomposing 2, 4-isooctyl-2-ethyl-6-cresol and 4, 6-di-tert-butyl-2-isopropyl phenol under the catalysis of acid to obtain crude 2-ethyl-6-cresol and o-isopropyl phenol, mechanically applying corresponding diisobutylene obtained by decomposition to next reaction, and rectifying again to obtain 99% 2-ethyl-6-cresol and o-isopropyl phenol; the 2, 4 / 2, 5-xylenol contains cresol, m-p-cresol, m-p-ethyl phenol and other cresol, so that the influence on separation and extraction of o-isopropyl phenol and the like is small, and the process practicability is high.

The invention discloses a method for separating m-cresol and p-cresol, which is characterized in that a bis (dipropoxy) pillar [5] arene crystal material and / or an adsorption material loaded with bis (dipropoxy) pillar [5] arene are / is used as an adsorbent to selectively adsorb m-cresol in a mixture of the m-cresol and the p-cresol so as to realize the separation of the m-cresol and the p-cresol; the chemical structural formula of the bis (dipropoxy) pillar [5] arene is as follows: # imgabs0 #. The separation process of the invention is simple to operate and low in equipment requirement; rectification operation is not needed in the separation process, energy consumption is low, energy is saved, and the production cost is reduced; the used crystal material is high in stability and can be recycled, and the separation effect cannot be reduced; a lot of organic solvents, strong acids and strong alkalis are not used, and the green chemistry concept is met.

The disclosure relates to a method for producing a propylene polymer composition, comprising melt processing a propylene polymer in the presence of a composition comprising at least one hydrogen donor comprising a di-substituted p-cresol derivative, at least one peroxide comprising a peroxydicarbonate, and at least one polymer additive comprising at least one antioxidant distinct from the at least one hydrogen donor The melt processing is performed under inert conditions. The disclosure further relates to embodiments of propylene polymer compositions.

The invention belongs to the technical field of coalification and synthesis and separation of organic products, and particularly relates to a method for separating a m-cresol / p-cresol / o-ethyl phenol mixture and producing a byproduct 2, 4-xylenol. The method comprises the following steps: carrying out fixed bed catalytic methylation reaction on a m-cresol and p-cresol mixture raw material with high o-ethyl phenol content and methanol, rectifying methylation reactants to obtain 2, 4, 6-tricresol and a mixture of 2, 3, 6-tricresol and 2-ethyl-4, 6-xylenol, and carrying out catalytic deethylation reaction on the 2, 4, 6-tricresol and the mixture of 2, 3, 6-tricresol and 2-ethyl-4, 6-xylenol to obtain the 2, 4, 6-tricresol. The method comprises the following steps of: adding a mixture of 3, 4-xylenol, 2, 4, 6-tricresol and 2, 3, 6-tricresol, and rectifying again to obtain 2, 4-xylenol, 2, 4, 6-tricresol and 2, 3, 6-tricresol, so that the application field of m-cresol and p-cresol is expanded, and the separation of m-cresol and p-cresol with high ethyl phenol content extracted from tar phenol is realized.

The invention discloses a method for preparing m-cresol, p-cresol and m-cresol phenolic resin by using crude phenol refining residues. According to the method, an acidic silicon-aluminum oxide solid catalyst and a zirconium phosphate system are adopted, long alkyl groups such as ethyl groups on aromatic rings in a 3, 4-methyl ethyl phenol mixture are removed, methyl groups are reserved, phenol containing the long alkyl groups is converted into simple cresol, phenol and the like, and then vacuum distillation treatment is performed to obtain phenol, m-p-cresol and 2, 3, 5-tricresol; further reacting the mixed phenol obtained by rectification with aldehydes to obtain modified m-cresol-formaldehyde resin products such as p-cresol, 2, 3, 5-tricresol and the like; complex raw materials are converted into simple products with clear targets through the cracking reaction, sulfur and nitrogen impurities in most of the raw materials are removed by utilizing an acid environment in the cracking process, an additional refining step is omitted, and the grades of all subsequent products are improved. According to the method, the limitation of traditional rectification is broken through, the difficulty of physical separation is simplified through a chemical means, the phenol and the phenolic resin are co-produced, and the added value of the product is improved.

This invention belongs to the field of polymer materials and relates to a method for preparing a multifunctional emulsion antioxidant and its application, specifically to an emulsion antioxidant that also absorbs ultraviolet light and its application. A multifunctional emulsion-type antioxidant comprises the following components: a phenolic primary antioxidant, wherein the phenolic primary antioxidant comprises a mixture of p-cresol and dicyclopentadiene copolymer (TH-CPL) and triethylene glycol bis[β-(3-tert-butyl-4-hydroxy-5-methylphenyl)propionate] (antioxidant 245); a thioester secondary antioxidant; a UV absorber; a light stabilizer; a nonionic surfactant; and deionized water; wherein the UV absorber is N-(ethoxycarbonylphenyl)-N'-methyl-N'-phenylformamidinium (UV-1), and the light stabilizer is a mixture of bis(1,2,2,6,6-pentamethyl-4-piperidine) sebacate and 1-methyl-8-(1,2,2,6,6-pentamethyl-4-piperidine) sebacate (292).

The invention relates to an energy-saving process system and method for separating refined phenol from tar crude phenol, and belongs to the field of tar crude phenol refining. The system comprises a separation process system and an energy-saving thermal circulation loop system, the separation process system comprises a first tower, a second tower, a third tower, a fourth tower, a fifth tower and matched cold exchange equipment, and the energy-saving thermal circulation loop system comprises a compressor, a throttle valve, a buffer tank and matched cold exchange equipment. The method comprises the following steps: removing water and light components, removing slag phenol, refining phenol, o-cresol, m-cresol and p-cresol, separating areas in the tower to improve the product purity, and converting low-grade waste heat into a high-grade heat source by using a compressor to replace traditional heating media and refrigerants, so that the aim of saving energy is fulfilled. According to the process system and the method, the tar crude phenol is separated and refined into high-purity phenol, o-cresol and m-cresol and p-cresol products, meanwhile, the purposes of saving energy and reducing consumption are achieved, and the process system and the method have important significance.

The invention discloses a method for extracting and separating phenolic pollutants in semi-coke wastewater by using a hydrophobic deep-eutectic solvent based on menthol, and belongs to the technical field of wastewater treatment. According to the method, a hydrogen bond acceptor (such as DL-menthol) and a hydrogen bond donor (such as n-hexanoic acid, octanoic acid, capric acid, nonanoic acid or thymol) are utilized to form hydrogen bonds, and a hydrophobic deep-eutectic solvent with good fluidity is formed. By controlling the molar ratio of the hydrogen bond acceptor to the hydrogen bond donor, the hydrophilicity of the solvent can be adjusted, and the extraction requirements of different phenolic substances can be met. The hydrophobic deep-eutectic solvent prepared by the method has good thermal stability and can be kept stable at lower and higher temperatures. In addition, the eutectic solvent can be used for extracting and separating phenolic pollutants such as p-cresol in semi-coke wastewater. The whole operation process is simple, convenient and rapid, the extraction efficiency is high, and secondary pollution is avoided.

The present invention discloses a method for producing methylphenol by gas-phase alkylation of phenol and methanol in a fixed-bed adiabatic reactor. Phenol and methanol are separately vaporized, mixed in a certain mass ratio, and then introduced into a fixed-bed adiabatic reactor containing a catalyst. The phenol and methanol undergo a gas-phase alkylation reaction to produce o-cresol, m-cresol, p-cresol, and some xylenols. By controlling the mass ratio of phenol and methanol, the purpose of controlling the adiabatic temperature rise is achieved. The products generated by the reaction are subjected to rectification and separation to obtain a mixture of o-cresol, m-cresol, and p-cresol, as well as products such as xylenol. Compared with the existing technology, the method for producing methylphenol by gas-phase alkylation of phenol and methanol in a fixed-bed adiabatic reactor provided by the present invention has the advantages of a simple reaction process, high catalyst loading efficiency, and no addition of inert circulating materials. It also achieves the advantages of reducing equipment investment, energy consumption, and wastewater.

The invention relates to a skin external preparation composition and application. The skin external preparation composition is prepared from natural colored grease, benzotriazolyl dodecyl p-cresol and glucosylrutin, the mass ratio of the benzotriazolyl dodecyl p-cresol to the glucosylrutin is 1 to (0.2 to 4); the mass percent of the benzotriazolyl dodecyl p-cresol in the skin external preparation composition is greater than or equal to 0.005%; the mass percent of the glucosylrutin in the skin external preparation composition is greater than or equal to 0.01%. The skin external preparation composition can effectively improve the light stability of natural colored grease.

The application provides a preparation method of 2,6-di-tert-butyl-p-cresol, which comprises the following steps: adding p-cresol and a catalyst into a reactor, heating in a constant-temperature water bath to mix the p-cresol and the catalyst sufficiently, and introducing isobutene into the system to prepare 2,6-di-tert-butyl-p-cresol through catalytic alkylation; wherein the catalyst is an ionic liquid complex composed of an ionic liquid ligand and a metal salt ligand. The method of the application uses the ionic liquid complex composed of the ionic liquid ligand and the metal salt ligand as the catalyst, so that the process reaction condition is more moderate, the process complexity and the production cost are reduced, and meanwhile, the p-cresol has a high conversion rate, the reaction has a high yield, and the demand of industrial production is met.

The invention discloses a positive panel photoresist and a photoetching process, and belongs to the technical field of photoetching. The photoresist comprises linear phenolic resin, a diazo photosensitizer, an additive and a solvent, the weight-average molecular weight of the linear phenolic resin is 3000-12000, and the linear phenolic resin comprises A-type phenolic resin and / or B-type phenolic resin; groups participating in polycondensation in the A-type phenolic resin comprise at least one of p-cresol groups and m-cresol groups, 2, 5-xylenol groups and 3, 5-xylenol groups, the molar percentage of the 2, 5-xylenol groups is greater than 0 and less than or equal to 50%, and the molar percentage of the 3, 5-xylenol groups is greater than 0 and less than or equal to 50%; the groups participating in polycondensation in the B-type phenolic resin comprise p-cresol groups and m-cresol groups. The photoresist has excellent corrosion resistance and adhesiveness at the same time.

The objective is to provide a beverage with enhanced fruity, juicy flavor and spicy, complex flavor, a method for manufacturing the beverage, and a method for improving the flavor of the beverage. [Solution] The beverage according to the present invention contains sotolon and p-cresol. The beverage according to the present invention also contains ethanol. The sotolon content of the beverage according to the present invention is 0.25 to 8.00 ppm. The p-cresol content of the beverage according to the present invention is 0.01 to 1.00 ppm. The acidity of the beverage according to the present invention is 0.20 g / 100 mL or more.

To provide an animal repellent and an animal repelling method that exhibit a rapid repelling effect against animals and a high sustained repelling effect without olfactory habituation.SOLUTION: The animal repellent contains phenols, such as guaiacol, 3-methoxyphenol, 4-ethylguaiacol, phenol, creosol, o-cresol, m-cresol, and p-cresol as active ingredients.SELECTED DRAWING: Figure 1

The invention discloses an acidic mesoporous resin for catalyzing alkylation of p-cresol and a preparation method and application thereof, the preparation method comprises the following steps: S1, stirring divinyl benzene, azobisisobutyronitrile, tetrahydrofuran and water at room temperature to obtain a mixture; s2, the mixture is subjected to hydrothermal treatment in a hydrothermal kettle, a solvent is evaporated out through normal-temperature volatilization, and a mesoporous polydivinylbenzene material is obtained; and S3, carrying out sulfonation treatment on the polydivinylbenzene mesoporous material to obtain the acidic mesoporous resin grafted with the sulfonic acid group. The alkylated acidic organic mesoporous polymer catalyst with specific specific surface area and sulfur content is formed by taking polydivinylbenzene as a carrier and grafting a sulfonic acid group on the carrier, so that the alkylated acidic organic mesoporous polymer catalyst not only has excellent catalytic activity and selectivity, but also is easy to separate from a product and can be repeatedly used, and the production cost is greatly reduced; and the preparation process is simple, the raw material source is wide, no pollution is caused to the environment and equipment, and the industrial application value is relatively high.

The present invention relates to the technical field of the production of color stabilizers, and specifically relates to a production device for inhibiting the discoloration of m-cresol and p-cresol, including a liquid storage barrel, on which a main body mechanism is installed; a lifting mechanism is clamped on the liquid storage barrel; the lifting mechanism is cooperatively connected with a sealing mechanism; the sealing mechanism is cooperatively connected with the liquid storage barrel; a limiting mechanism is clamped on the liquid storage barrel; a liquid mixing mechanism is communicated with the liquid storage barrel; a stirring mechanism rotates on the liquid mixing mechanism; pressing and rotating the limiting mechanism to disassemble the lifting mechanism from the liquid storage barrel facilitates the discharge of m-cresol and p-cresol into the liquid storage barrel; rotating the lifting mechanism facilitates the stirring of m-cresol and p-cresol, pulling the lifting mechanism to drive the sealing mechanism to slide, so that the m-cresol and p-cresol in the liquid storage barrel can flow into the liquid mixing mechanism; opening the stirring mechanism and separately adding different antioxidants and light stabilizers into the liquid mixing mechanism, and rotating the stirring mechanism can stir and mix the prepared samples.

This invention provides a composition effective in suppressing the deterioration of citral flavor. [Solution] A citral flavor-suppressing composition containing one or more compounds selected from the group consisting of 8-methyl-4-methylenenona-7-en-2-one and 4,8-dimethylnona-3,7-dien-2-one as an active ingredient. Preferably, it contains at least 8-methyl-4-methylenenona-7-en-2-one. Alternatively, preferably, the unpleasant flavor is due to p-cresol and / or p-methylacetophenone.

The present invention discloses a method for selectively adsorbing p-cresol and m-cresol. Using a mixture containing p-cresol and m-cresol as the adsorption liquid, an adsorbent is used to selectively adsorb the adsorption liquid. The adsorbent is a flaky ZSM-5 zeolite molecular sieve, and the mass of p-cresol adsorbed by the adsorbent accounts for more than 97% of the total mass of m-cresol and p-cresol adsorbed by it. The flaky ZSM-5 zeolite molecular sieve can also be modified with organic bases, inorganic bases, inorganic salts, or a silica layer can be coated on its surface for modification. By using this method, p-cresol and m-cresol can be efficiently adsorbed and separated in a single time, and the adsorption selectivity of p-cresol can reach more than 97%. The best selective adsorption effect can achieve only the adsorption of p-cresol without the adsorption of m-cresol.

The invention discloses preparation of an adsorbent for preferentially adsorbing m-cresol by a liquid phase and a continuous separation and purification process method, and belongs to the technical field of chemical separation application. The process comprises the following steps: stirring and mixing a lithium-type ZSM-20 molecular sieve obtained by exchanging a LiOH solution with an ammonium-type ZSM-20 molecular sieve, organic bentonite and a pore-forming aid, molding in a ball forming mill to obtain spherical adsorbent particles with the particle size of 0.2-2.5 mm, drying, roasting, dehydrating and activating to obtain the m-cresol adsorbent for producing high-purity m-cresol. The method not only overcomes the defects of more byproducts, long process flow, large production energy consumption, limited production scale and the like in the existing industrial common alkylation method for separating the m-cresol and the p-cresol, but also changes the process route of preferentially adsorbing the p-cresol to separate the cresol mixture reported in the existing patent literature. According to the process method disclosed by the invention, the m-cresol is adsorbed preferentially, the high-purity m-cresol is produced with high selectivity, and the process method is an environment-friendly green process.

The invention relates to the technical field of chemical material preparation, in particular to a m-cresol and p-cresol adsorbent based on a porous material and a preparation method thereof.The preparation method comprises the steps that a raw material mixture is stirred, stripe feature points are marked according to a surface image of the raw material mixture, and feature stripe contours are determined so as to determine a sampling time window; sampling the stripe feature points and the stripe reference points, dyeing the sample, screening a local reference point according to the comparison condition of gray values after dyeing, adding compensation stirring to the raw material mixture with the local reference point in the stirring process, determining stirring parameters of the compensation stirring according to the local reference point, and obtaining the raw material mixture with the compensation stirring parameter. According to the preparation method, the stirred raw material mixture is subjected to crystallization control, pore expansion modification and surface functionalization, so that the target m-cresol adsorbent is prepared, further, the stirring state of the mixture is monitored in time in the preparation process, the stirring mode is adaptively adjusted according to different stirring states, and the structural uniformity of the m-cresol adsorbent is improved.

The present application belongs to the field of catalyst preparation technology, specifically a catalyst for the oxidation of p-cresol to prepare p-hydroxybenzaldehyde and its use method, the catalyst is a composite metal oxide catalyst, the carrier is γ-Al2O3, the active component is a bimetallic oxide, the auxiliary agent is one or more metal oxides of variable valence metals Ce, Mn, Au, La, and the metal element in the bimetallic catalyst contains at least one of Cu and Co. The catalyst disclosed in the present application has high catalytic activity and strong stability, and the preparation method of the catalyst is simple and the catalytic conditions are mild, which solves the problems of high cost, complex preparation process and harsh reaction process conditions of traditional oxidation catalysts; the CuCoM-Al2O3 (M=Ce, Mn, Au, La) catalyst prepared by the deposition precipitation method in the present application has a p-cresol conversion rate of 80% and a p-hydroxybenzaldehyde selectivity of 99%.

This invention relates to the field of m-p-cresol separation technology, and more particularly to a separation device for m-p-cresol separation production, comprising a fixed bed; a data acquisition module for real-time acquisition of p-cresol concentration and liquid flow rate; an interface determination module for determining a first interface and a second interface, including a leveling monitoring unit for determining whether the contact between the m-p-cresol mixture and the adsorbent is qualified based on an interface level index, and adjusting the spray flow rate of the m-p-cresol mixture; and an interface monitoring module for determining whether the adsorption process of p-cresol is qualified based on a spacing stability index between the first and second interfaces, and optimizing the flow rate adjustment coefficient; and an efficiency monitoring module for determining whether the separation efficiency of the m-p-cresol mixture is qualified based on the adsorption utilization rate of the adsorbent, and optimizing a preset level index. This invention improves the adsorption utilization rate of the adsorbent.

The application provides a molecular sieve for adsorptive separation of m-cresol and p-cresol and a preparation method and application thereof, wherein the molecular sieve is a ZSM-5 molecular sieve whose cation sites are jointly occupied by metal cations of group IA and rare earth metal cations, or a ZSM-5 molecular sieve whose cation sites are jointly occupied by metal cations of group IIA and rare earth metal cations. The pore size of the molecular sieve is regulated by complex modification of rare earth ions to realize selective adsorption of m-cresol and p-cresol, so that high-purity m-cresol and p-cresol can be obtained.

The invention discloses a lactobacillus buchneri strain capable of fermenting and converting p-hydroxybenzyl alcohol in bamboo shoots into sour bamboo shoot characteristic flavor substances, and belongs to the field of probiotic fermentation, the lactobacillus buchneri strain CCFM1421 is screened and preserved in Guangdong Microbial Culture Collection Center on October 31, 2024, and the preservation number is GDMCC No: 65377. The lactobacillus buchneri CCFM1421 screened by the invention has the characteristics of acid resistance and salt tolerance, p-cresol can be prepared by fermenting p-hydroxybenzyl alcohol, and a high-quality strain resource is provided for targeted regulation and control of the flavor of sour bamboo shoots and development of a sour bamboo shoot leavening agent.

The invention relates to the field of cresol synthesis, in particular to a method for synthesizing o-cresol and / or p-cresol by adopting a micro-channel reactor. The method comprises the steps that catalytic liquid, methylbenzene and an H2O2 aqueous solution are introduced into a microchannel reactor to be subjected to a contact reaction, reaction effluent is obtained, o-cresol and / or p-cresol are / is separated from the reaction effluent, and the catalytic liquid comprises a catalyst and a solvent. The method provided by the invention has the advantages of high selectivity and total yield of o-cresol and p-cresol, safety, environmental protection and simple process.