148results about How to "Fast oil absorption" patented technology

The invention discloses a method for preparing a seaweed cellulose aerogel oil absorption material and relates to a method for preparing an oil absorption material. The method comprises the following steps: I, purifying seaweed cellulose; II, preparing seaweed nano cellulose microfibril in a mechanical colloid milling mode; III, preparing seaweed cellulose aerogel; and IV, performing hydrophobic modification on the seaweed cellulose aerogel. The seaweed cellulose aerogel oil absorption material prepared by using the method is natural and pollution-free and has the advantages of high oil absorption efficiency, , good strength, simple secondary treatment and the like, and is an important development direction of novel aerogel oil absorption materials.

The invention discloses a high oil absorbing resin, and a process for preparation comprises utilizing short-chain ester of (metyl group) acrylic acid, long-chain ester of acrylic acid and styrene monomer to be monomers, adding dispersing agent and surface active agent, and getting through suspension polymerization and random copolymerization under the condition of the existence of cross linker and initiating agent. The process for synthesizing has lithe time consumption, which can be industrialized, and high oil absorbing resin which is got has high oil absorbing efficiency, fast oil absorbing speed, and which can be recycled to be repeatedly used.

The invention relates to a high oil absorption polyurethane foam which comprises the following components in parts by weight: 20 to 40 parts of isocyanate, 35 to 60 parts of polyol, 0.5 to 3 parts of catalyst, 0.5 to 3 parts of foam stabilizer, 5 to 10 parts of foaming agent, 2 to 10 parts of opening agent,5 to 20 parts of flame retardant, 5 to 15 parts of silicon rubber spherical micro powder and 0.5 to 2 parts of coupling agent. The preparation method comprises the following technology steps of weighing, prepolymerization, dispersing, polymerization foaming reaction, curing and peeling at room temperature and cutting. The high oil absorption polyurethane foam can be used for the absorption and recycle of various oil products (crude oil, engine oil, diesel fuel, gasoline, kerosene and the like) on water surfaces, ground or surfaces of other objects, and various oil soluble organic compounds (benzene, methylbenzene, dimethylbenzene, chloroform, nitrobenzene, chlorobenzene and the like). The invention has the advantages of simple technology and low cost, obviously improves the dispersing effect of the silicon rubber spherical micro powder in a polymerization system by using ultrasonic technique, and greatly increase the oil absorption quantity and oil absorption rate of the polyurethane foam by adding the silicon rubber spherical micro powder.

The invention discloses a biology base polymer aerogel oil absorption material. The oil absorption material is prepared by the following steps: at first, crosslinking biology base polymers by a crosslinking agent, to obtain a precursor liquid, then freeze-drying the precursor liquid to obtain aerogel, and finally grafting silane onto the aerogel surface to obtain the hydrophobic biology base polymer aerogel oil absorption material. The density of the oil absorption material is 3.8 to 23.1 kg/m3. The water contact angle is at least 117.8 degrees. The adsorption capacities on gasoline, paraffin oil, chloroform, and crude oil are 30.5-109.0 g/g, 33.2-131.2 g/g, 58.2-163.0 g/g, and 24.7-95.8 g/g. After 50 times of gasoline adsorption-extrusion circulation, the retention rate of adsorption capacity is 43 to 99%. The disclosed aerogel oil absorption material has the advantages of large oil absorption capacity and high oil absorption efficiency. Moreover, the oil absorption material can be repeatedly used by simply extruding the oil absorption material, while a high retention rate of adsorption capacity can be maintained. At the same time, the raw material sources are wide, the raw materials are cheap and easily available, the preparation is simple, the technology is matured, the method is environment-friendly, and the requirements of sustainable development can be met.

The invention relates to a preparation method of super-hydrophobic, super-oleophylic and ultralight sponge. The preparation method comprises two steps of performing functionalized processing on melamine sponge by using an impregnation method and performing a curing reaction after processing. The melamine sponge used by the invention has a large quantity of active functional groups such as hydroxyl groups and amino groups on the surface, the content of the hydrophobic active functional groups on the surface of the sponge is remarkably reduced after the active groups are chemically functionalized, which causes a result that the surface energy of the material is reduced, thus the sponge is endowed with super-hydrophobic and super-oleophylic effects, and a contact angle between the sponge and water exceeds 150 degrees; and the modified melamine sponge belongs to an ultralight material due to density. The method disclosed by the invention has the advantages that raw materials are low in price and easy to available, the process is simple and easy to operate, the large-scale preparation is easily realized, and the like. The sponge prepared according to the preparation method has the advantages of low density, excellent compression resistance, high oil absorbing speed, high oil absorbing rate, high oil and water separation selectivity and the like, is a novel and efficient ultralight-density oil and water separating material, and has a wide application prospect in the fields such as organic chemical reagent treatment, oil-containing wastewater treatment, and leaking crude oil recovery.

The present invention relates to a shell-like polymer oil-absorbing microsphere preparation method, which adopts a suspension polymerization method, and specifically comprises: adding deionized water and a dispersing agent into a three-necked flask with a stirring device, heating to a temperature of 30-50 DEG C until the dispersing agent is dissolved, sequentially adding an acrylate or methacrylate reaction monomer, a diacrylate cross-linking agent of a diol and a free radical polymerization initiator to the three-necked flask under the protection of high purity nitrogen, slowly heating to a temperature of 60-80 DEG C, carrying out a reaction for 3-6 h to obtain polymer oil-absorbing microspheres, adding styrene and divinylbenzene, carrying out a reaction for 1-3 h so as to generate the high cross-linking degree surface layer structure on the outer surface of the microsphere, cooling the reaction system to a room temperature under the stirring condition, and carrying out filtration, water washing, suction filtration and drying on the oil-absorbing microsphere to obtain the shell-like polymer oil-absorbing microsphere, wherein a mass ratio of the deionized water to the dispersing agent is 100:0.03-4.5. The shell-like polymer oil-absorbing microsphere of the present invention has the characteristic of rapid oil absorbing.

The invention discloses a self-deoiling type water surface oil stain adsorption ball, and belongs to the technical field of water body pollution treatment. According to the invention, an adsorption ball body provided with an oil absorption cotton material can rapidly adsorb oil stains, and the oil stains adsorbed by the adsorption ball body can be diffused in an oil guide rope and an oil collection ball which are connected with the adsorption ball body and are made of the same material, so that part of the oil stain is guided to the oil collection ball; the oil collection ball is soaked in anoil stain emulsifying agent, the emulsifying agent can emulsify and decompose the oil stain in the oil collection ball and perform automatic deoiling, a specially-made expansion and shrinkage ball anda water guide net set matched with the specially-made expansion and shrinkage ball are arranged, and the water guide net set can guide water to the expansion and shrinkage ball, so that the expansionand shrinkage ball can achieve automatic repeated expansion and shrinkage; and the adjacent expansion and shrinkage balls intermittently extrude the oil collection ball between the expansion and shrinkage balls to extrude out oil stains adsorbed in the oil collection ball, so that deoiling is accelerated, the adsorption balls can adsorb and deoil at the same time, the oil adsorption capacity of the adsorption balls is greatly improved, and then the treatment efficiency is greatly improved.

The invention discloses a porous reduced graphene oxide oil absorption material with a controllable doping level and a preparation method thereof. The porous reduced graphene oxide oil absorption material with the controllable doping level is of a hierarchical porous structure stacked layer by layer; a reduced graphene oxide aerogel is adopted as a substrate; and amino acid is doped in a framework of the reduced graphene oxide aerogel. The preparation method provided by the invention comprises the steps of firstly mixing graphene oxide and an amino acid reducing agent dissolving solution; then obtaining a reduced graphene oxide hydrogel through a high pressure hydrothermal method; and finally, washing the hydrogel, freezing at low temperature for pore-forming, and obtaining the porous reduced graphene oxide oil absorption material. The oil absorption material provided by the invention has favorable hydrophobicity, has a better adsorption capacity on an oil product and an organic pollutant, and achieves the aim of oil-water separation in an oil-water composite environment; and meanwhile, pore diameter distribution and a pore structure of the material can be regulated and controlled through the control on the doping level, the selective oil absorption of the material is promoted, and the selective adsorption of the oil product is realized.

The present invention relates to the field of high oil-absorbing resin preparation, and discloses a preparation method of an embedded immobilized microbial ball. The method comprises the steps of: (1) preparation of the immobilized microbial particles; (2) preparation of an acrylate copolymer emulsion; and (3) preparation of the embedded immobilized microbial ball. The present invention also discloses a preparation apparatus of the embedded immobilized microbial ball. The apparatus includes an extrusion section, an insulation transport section and a moulding section. The extrusion section comprises an extrusion sections housing, an advancing screw and a rotary motor; the insulation transport section includes a tubular type conveying channel and a heater; and the moulding section comprises a moulding section housing and a pair of reverse gears provided with hemispherical grooves. The embedded immobilized microbial ball prepared by the present invention has high oil suction rate and large oil absorption capacity, and can degrade the adsorbed oil; and microbes have good stability and long survival time. At the same time, the preparation apparatus of the present invention requires mild conditions in the preparation process, protects the survival rate of the microbes to the maximum; and the prepared product has high dimensional stability.

Relating to the high oil-absorption resin preparation field, the invention discloses a preparation method for a composite high oil-absorption resin. The method includes: (1) preparation of immobilized microbial microspheres: mixing modified mussel shell powder with a seed bacterial liquid, adding a sodium alginate solution into a bacteria adsorbing modified mussel shell powder solution, then injecting the mixed solution into a calcium chloride solution and conducting dispersion into balls, and conducting crosslinking to obtain immobilized microbial microspheres; (2) preparation of an acrylate copolymer emulsion: adding a methylacrylate monomer, styrene, an initiator and an emulsifier into water and conducting stirring emulsification; adding a crosslinking agent and a pore making agent into the emulsion to carry out reaction so as to obtain an acrylate copolymer emulsion; and (3) preparation of composite high oil-absorption resin: adding immobilized microbial microspheres, a coupling agent and cellulose into the acrylate copolymer emulsion, conducting stirring and then performing vacuum drying, thus obtaining the composite high oil-absorption resin. The composite high oil-absorption resin prepared by the method provided by the invention has fast oil absorption speed and large oil absorption capacity, and can carry out microbial degradation on oil.

The invention discloses a porous oil absorption material and a preparation and regeneration method thereof. The porous oil absorption material is a porous ceramic material uniform in pore distribution and with the pore diameter distribution range of 0.1-100 micrometers and above 40% of porosity, the porous oil absorption material is prepared from Al2O3 and SiO2, surface activation treatment is conducted on the porous oil absorption material so as to improve the surface hydrophilicity of the material, and the porous oil absorption material is soaked with modified liquid to obtain super-strong oil absorption capacity. The porous oil absorption material having an oil contamination removing function has the advantages of being simple in modification process, low in modification cost, high in oil absorption speed, large in oil absorption amount, high in water body purification degree and convenient to regenerate and the like.

The invention relates to a method for preparing a three-dimensional porous oil absorption material. The method comprises the steps that polylactic acid is dissolved in a solvent and stirred to be dissolved, and a polylactic acid solution is obtained; under the stirring condition, a poor solvent is dropwise added into the polylactic acid solution till the solution turns turbid from clear, still standing is carried out at room temperature, replacement and vacuum drying are carried out, and the three-dimensional porous oil absorption material is obtained; or under the stirring condition, natural fibers are added into the polylactic acid solution, then the poor solvent is dropwise added till the solution phase is separated, still standing is carried out at room temperature, replacement is carried out, and the three-dimensional porous oil absorption material is obtained. The novel oil absorption material is controllable in aperture size and shape and can be suitable for different application occasions.

The invention relates to a preparation method of an oil absorbent, in particular to a method for preparing the oil absorbent from low grade diatomite. The preparation method comprises the following 9 steps of: low grade diatomite raw material selection, crushing, acidification treatment, washing, drying, adding of the assistant (3%-5%) Na2Cl (industrial salt) and mixing, roasting at 750-850DEG C, breaking winnowing, and adding of the silane coupling agent KH-550 (gamma-aminopropyl triethoxysilane, Nanjing Union silicon Chemical Co., LTD. 5%-7%) to conduct modification treatment, thus obtaining the particle and powder diatomite oil absorbent. The oil absorbent has simple and easy preparation method, wide raw material sources and low cost, solves the current solid waste pollution problem of low grade diatomite, opens up a new way for low grade diatomite application, and realizes recycling of waste materials. The oil absorbent has good selectivity, strong absorptivity up to 500% of its own weight, rapid oil absorption speed, small oil absorbent stacking density, a melting point of 1450DEG C, and a high use temperature, and can float on the water surface before and after oil absorption, thus being convenient for recovery and post-treatment.

The invention discloses a continuously liftable caterpillar-band-type water surface oil absorption device comprising a rapid oil absorption material. The oil absorption device comprises the rapid oil absorption material, a continuous-circulating-type oil absorption recovery device and a brake lever system. Based on the principle, the height of the rapid oil absorption material is adjusted according to the height of an oil surface by utilizing a brake lever, so that the oil absorption material can be used for easily contacting and adsorbing the floating oil on the water surface; then driving rollers and driven rollers are driven to rotate together under the action of a driving device, so that the caterpillar-band-type rotation of the oil absorption material is realized; and by the rotation of the upper and the lower driving rollers, the oil in the oil absorption material is squeezed out, and the squeezed oil is transferred into a groove so as to enter a recovery box. Therefore, the floating oil layer is continuously absorbed and treated. The oil absorption device disclosed by the invention is suitable for the oil-containing water surfaces with various height requirements, for example: the oil absorption device can be placed outside the edge of a water tank, at the shore of a water pool, on a ship and the like.

The invention discloses a manufacturing method of composite oil-absorbing resin which takes poly(meth)acrylate as a matrix polymer and other substances as reinforcing components, belongs to the technical field of composite oil-absorbing material manufacturing, and particularly relates to a manufacturing method for composite resin which takes poly(meth)acrylate as the matrix and other organic high polymer compounds as the reinforcing components, or composite resin which takes poly(meth)acrylate as the matrix and inorganic substances as the reinforcing components or composite resin which takes poly(meth)acrylate as the matrix, and other organic high polymer compounds and the inorganic substances as the reinforcing components. The manufacturing method utilizes the technologies such as suspension polymerization, cryogenic high-speed crushing, local high-temperature instantaneous modification, in-situ polymerization and reactive extrusion. Compared with the existing poly(meth)acrylate-based high oil absorption resin, the composite oil-absorbing resin has slightly declined oil absorption amount, high oil absorption velocity and high strength, is not formed into a muddy shape after absorbing oil, and is convenient to recycle and capable of meeting the practical industrial needs.

The invention relates to the field of a material, and particularly relates to a color-changing adsorption material. The adsorption material consists of an oil holding layer and surface layers which are arranged at two sides of the oil holding layer, wherein a color-changing layer is arranged in the middle of the oil holding layer, and the oil holding layer is a coarse polypropylene fiber melt-blowing layer; each surface layer is formed by pressing an inner layer and an outer layer, the inner layer is a fine polypropylene fiber melt-blowing layer, the outer layer is a thin nonwoven fabric layer with the surface density of 8 to 30g/m<2> and with fibers being unlikely to drop, the outer layer is also provided with pressed patterns, and the outer layer and the inner layer are composited together by a plurality of press points. The polypropylene fiber melt-blowing nonwoven oil absorption material which is of a sandwich structure and has two dense surfaces, sparse middle part and the variable density is produced by adopting the melt-blowing forming technology in conjunction with an ultrasonic pressing technology, the color-changing layer made from color-changing silicone is additionally arranged in the middle of the oil holding layer, the adsorption material can absorb oil and also can absorb water in the oil absorption process by utilizing the characteristic that the color is changed when the silicone encounters the water; moreover, the color of the material can be changed according to the absorption quantity, so that whether the adsorption material needs to be replaced or not can be judged by a user.