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140 results about "O-Phenylphenol" patented technology

2-Phenylphenol (ortho-phenylphenol, OPP), and sodium o-phenylphenate, SOPP, were first evaluated by the 1962 JECFA for their use for the post-harvest treatment of fruits and vegetables to protect against microbial damage during storage and distribution in commerce.

Device and method for preparing cyclohexenyl cyclohexanone

The invention relates to a device and a method for preparing cyclohexenyl cyclohexanone as an intermediate of o-phenylphenol. The device comprises a column bottom 6, a tower reactor 5, an all-reflex condenser 1 and an oil-water separator 2, wherein the reactor 5 consists of a reaction separation section 3 and a separation section 4; a catalyst bag is placed in a catalyst frame on a tower plate of the reaction separation section 3 of the tower separator, cyclohexanone in the column bottom is heated and steamed out and enters the tower plate of the reaction separation section 3 through the separation section 4 to form a liquid layer so that the catalyst in the catalyst frame is immersed in the cyclohexanone liquid, cyclohexanone undergoes a condensation reaction under the action of the catalyst to generate cyclohexenyl cyclohexanone and water, the cyclohexenyl cyclohexanone leaves the reaction section and moves towards the lower part of the tower under the separation action of the tower plate, and finally enters the column bottom, the generated water and cyclohexanone are steamed out together from the top of the tower and undergo phase splitting in the oil-water separator after being condensed. The once-through conversion of the cyclohexanone can reach over 95 percent and the selectivity of the cyclohexenyl cyclohexanone can reach over 98 percent.
Owner:江苏华派新材料科技有限公司 +1

Wood-plastic composite environmentally-friendly decorative paper and production process thereof

The invention relates to wood-plastic composite environmentally-friendly decorative paper. The wood-plastic composite environmentally-friendly decorative paper is produced in such a way that a decorative layer, a protective layer and a organic silicon mold release agent layer are sequentially attached to the surface of base paper, and a pressure-sensitive adhesive layer and a mold release paper layer are sequentially attached to the back surface of the base paper, wherein the protective layer can be an adhesive polythene (PE), polyethylene terephthalate (PET), bi-axially oriented polypropylene (BOPP), o-phenylphenol (OPP) or polyvinyl chloride (PVC) plastic film or sprayed polyethylene film. The wood-plastic composite environmentally-friendly decorative paper has favorable and obvious surface decorating effect, good ductibility and strong intensity of tension and is self-adhesive, waterproof and moistureproof and easy to paste and coat and does not deform, crack and bulge on surface when heated and cooled, thereby the wood-plastic composite environmentally-friendly decorative paper can be widely applied to food packing, decorative material and furniture material; in addition, the wood-plastic composite environmentally-friendly decorative paper is attractive in appearance and convenient to construct and manufacture, has clear patterns and characters and can be widely manufactured on a large scale in a factory with low cost, thereby being an larger improvement on surface decorating material.
Owner:杨建文

Antibacterial and mildew-proof treatment liquid of digital printing real-silk silk painting and antibacterial and mildew-proof post-treatment process

The invention discloses components and a preparation method of antibacterial and mildew-proof treatment liquid of a digital printing real-silk silk painting and an antibacterial and mildew-proof post-treatment process. The treatment liquid is prepared from 2.00%-6.00% of phenyl salicylate, 0.10%-0.70% of dichlorophenol, 0.10%-0.40% of 2-phenylphenol, 0.10%-0.70% of N-octylisothiazolinone, 2.00%-6.00% of sodium alginate, 30.00%-45.00% of ethanol and 41.20%-65.70% of de-ionized water. All the components of the treatment liquid are added into a mixed solution of the ethanol and the de-ionized water and are stirred to be sufficiently dissolved; and the obtained liquid can be used for post-treatment process steps of starching a real-silk white blank of the digital printing real-silk silk painting, drying, drawing by spraying, steaming, washing with water, and impregnating by the antibacterial and mildew-proof treatment liquid and the like. The antibacterial and mildew-proof treatment liquid has a simple and convenient preparation process, has no toxicity and damages to human bodies and no any toxic side effect on the environment, does not damage a silk protein structure in a silk fabric and does not influence the real effect of the digital printing real-silk silk painting; and the difficulties that various bacteria are easily bred on the real-silk silk painting and the real-silk silk painting has mildew, so that the quality and service life of the painting are influenced are overcome.
Owner:SUZHOU SILKCUBE TEXTILE

Preparation method for preparing biphenyl and o-phenylphenol by hydrofining industrial dibenzofuran

The invention provides a preparation method for preparing biphenyl and o-phenylphenol by hydrofining industrial dibenzofuran, and belongs to the field of fine chemical synthesis. The industrial dibenzofuran is dissolved in a dissolving kettle by a solvent, a dissolving temperature is 80-100 DEG C, and the industrial dibenzofuran organic solution after dissolving is injected into a fixed bed reactor loaded with a hydrofining catalyst and undergoes a hydrofining reaction; after the hydrofining reaction, the product directly enters a rectifying tower and is rectified, and cyclohexane and benzene come out of a tower top; according to the boiling point, an extracted solvent is circulated for re-dissolving the industrial dibenzofuran, the extracted biphenyl is directly granulated as a product, the extracted o-phenylphenol is directly granulated as a product, and refined dibenzofuran is extracted from a tower bottom; and the refined dibenzofuran as a raw material is used for production of o-phenylphenol. The biphenyl and the o-phenylphenol with high additional value are produced by the industrial dibenzofuran; the used catalyst has super high selectivity and relatively high hydrogenation activity. The method has good economic benefits and industrial application prospects.
Owner:DALIAN UNIV OF TECH

Synthetic method of o-phenylphenol

The invention discloses a synthetic method of o-phenylphenol. The method comprises the following steps: Pt/C catalyst modified by alkali metal carbonate or alkali earth metal carbonate and cyclohexanone dimer are added in a reaction vessel, nitrogen is charged for 2-3 times to replace the air in the reaction vessel, and then heating is conducted under stirring to temperature of 320 to 400 DEG C ; the reaction pressure is 0.6 to 2MPa, the reaction is stopped when the content of intermediate o-cyclohexyl alkylphenol in the reaction liquid is less than 2 percent, and the reaction liquid is cooled to the temperature of 60 to 70 DEG C and filtered to obtain the filtrate containing o-phenylphenol. The core of the method is that the active carbon carrier is modified by alkali metal carbonate or alkali earth metal carbonate so as to inhibit the promotion action of the acid center on the active carbon to the decomposition of the reaction material, namely, cyclohexanone dimer, and simultaneously provide proper alkaline condition for the generation of the o-phenylphenol, therefore, the selectivity of the catalyst is greatly improved. Moreover, the production efficiency of the catalyst in process unit is high, the recovery of the catalyst is convenient, and the method is beneficial to industrialization.
Owner:ZHEJIANG UNIV +1

Preparation method of eggshell-type noble metal catalyst and method of using same for dibenzofuran hydrogenation ring opening to prepare o-phenylphenol

The invention provides a preparation method of an eggshell-type noble metal catalyst and a method of using the same for dibenzofuran hydrogenation ring opening to prepare o-phenylphenol and belongs to the technical field of industrial catalysis. The preparation method includes: adding a carrier into a platinum metal salt solution; controlling deposition of platinum nanoparticles on the surface of the carrier through quick reductive reaction and solution viscosity; filtering, washing, and heating for drying in an inert atmosphere to form an eggshell-type platinum catalyst which is stable. The preparation method has the advantages of simple process, controllable structure and low process energy consumption; platinum particles in the eggshell-type platinum catalyst prepared by the method are uniformly distributed on the surface of the carrier, so that consumption of metal platinum is lowered, cost of the catalyst is lowered effectively, and the eggshell-type platinum catalyst has good industrial application prospect. The eggshell-type platinum catalyst presents excellent catalysis performance and long service life in reaction for dibenzofuran hydrogenation ring opening to prepare o-phenylphenol.
Owner:DALIAN UNIV OF TECH +1
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