49results about How to "Play a role in stripping" patented technology

The invention discloses a method for preparing unsaturated carboxylic zinc salt functionalized graphene. The preparation method comprises the following steps of: performing solid phase ball milling on graphite to obtain a multi-layer nano graphene flake, namely a multi-layer graphite powder body, ultrasonically dispersing the multi-layer graphite powder body into an organic polar solvent to obtain suspension liquid of graphene, performing uniform ultrasonic mixing on the suspension liquid of graphene and an aqueous solution of metallic chlorate, intercalation-adsorbing metallic salt ions between the graphene flake layers under the ultrasonic physical action, adding the mixture of unsaturated carboxylic acid and sodium hydroxide, uniformly stirring the mixture, removing the solvents by rotary evaporation in the constant temperature oil bath at the temperature of between 90 and 120 DEG C, and thus obtaining the unsaturated carboxylic zinc salt functionalized graphene. According to the preparation method provided by the invention, the graphite is subjected to solid phase ball milling by adding a ball milling aid, and under the action of high-energy mechanical force, the van der waals force and the covalent bond acting force between the graphene atom flake layers are overcome, so that not only the dispersibility of graphene is improved, but also the potential application range of graphene is further widened on the premise of no influence on the performance of graphene.

The invention relates to a cleaning agent for heat cleaning of wellhole. The cleaning agent comprises the following components, by weight: 10-30 parts of Ninol, 1-10 parts of a penetrating agent JFC, 1-5 parts of a demulsifier AE8031, 10-30 parts of ethylene glycol monobutyl ether; 5-15 parts of HEDTA and 30-50 parts of water. The preparation method comprises the steps of: (1) dissolving HEDTA in water, and stirring until complete dissolving; and (2) adding ethylene glycol monobutyl ether into the solution from the step (1), stirring evenly, successively adding Ninol, penetrating agent JFC and demulsifier AE8031, and stirring evenly to obtain a finished product. The components of Ninol, penetrating agent JFC, demulsifier AE8031 and ethylene glycol monobutyl ether in the cleaning agent are all surfactants; HEDTA has descaling and scale inhibition function, so that the cleaning agent provided by the invention has the functions of surface activity, descaling and scale inhibition, and is suitable for cleaning of oil tubes in heavy oil heavy oil fields, and also has the function of environmental protection.

The invention discloses a preparation method of a shell-like structure cellulose nanofiber/black phosphorene composite film. The method comprises the following steps: obtaining stably existing cellulose nanofiber/black phosphorene dispersion by virtue of hydrogen bond interaction, and forming the layered cellulose nanofiber/black phosphorene composite film in a self-assembly manner. According to the preparation method disclosed by the invention, the cellulose nanofiber serves as a construction module of a black phosphorene nano-composite film, self-assembly is performed by adopting a vacuum suction filtration method, and the shell-like structure layered composite film having excellent mechanical property and fireproof performance. The cellulose nanofiber/black phosphorene composite film prepared by the invention has an ordered 'brick-mud' layered structure, is excellent in mechanical property, additionally has excellent biocompatibility, and can be applied to the fields of tissue engineering, biological medicines and the like.

The invention discloses a treating method and device for carbon dioxide and hydrogen sulfide containing gas. The device comprises a hydration reactor, a hydrate decomposing device, an exhaust gas treating device, a first-stage absorbing reactor, a second-stage absorbing reactor and a product tank. The invention further provides a method for treating the carbon dioxide and hydrogen sulfide containing gas through the abovementioned device. With the adoption of the device and the method, NaHS products meeting national quality standard can be produced while acidic gas standardized discharging is realized; the environment treatment and the production process of chemical products are integrated. Compared with the prior art, the method has the advantages that the carbon dioxide and hydrogen sulfide containing gas can be economically and efficiently pretreated; the energy in the technical process can be reasonably utilized, so that the energy consumption is extremely decreased; the whole treatment process is environmentally friendly, reliable, and free of three wastes.

The invention discloses a surrounding type blowing dust removal device. The surrounding type blowing dust removal device comprises a blowing gas delivery pipe, a control valve, a rotating joint and a blowing pipe, wherein a plurality of nozzles are arranged on the blowing pipe; the control valve is arranged at the lower part of a filter element of a dust collector through the rotating joint. The heat-expansion and cold-contraction characteristic of metal is utilized, dusty gas is taken as gas for dust removal, and gas back spraying rotation is adopted, so that dust removing is well realized, the cost is low, the equipment is safe and reliable and long in operation cycle, the dust removal efficiency of the filter element is improved by more than 5%, and the operating cost is reduced by 10%; the surrounding type blowing dust removal device has excellent economic benefit, develops a new way in the aspect of dust removal for the filter element, and has excellent popularization and application value.

The invention provides a special pickling cleaning agent for reverse osmosis and a preparation method thereof, and the special pickling cleaning agent for reverse osmosis is mainly prepared from the following raw materials in parts by mass: 30-50 parts of organic acid, 3-5 parts of bactericide, 3-6 parts of complexing agent, 5-12 parts of inorganic salt, 1-4 parts of surfactant and a proper amountof water. The special pickling cleaning agent for reverse osmosis ensures that carbonate dirt possibly existing on the surface of a membrane element and dirt blockage caused by most metal oxides arecleaned through chemical reaction under the condition that the pH value is 2-3; according to the special pickling cleaning agent for reverse osmosis, water flows through the membrane to physically wash dirt on the surface of the membrane, a stripping effect is achieved, after the cleaning agent is used for cleaning, the operation flux and the pressure difference of the reverse osmosis membrane canbe basically recovered to the level before pollution, the stability is good, and it can be guaranteed that the membrane assembly cannot be polluted after long-time operation after cleaning.

A method for preparing graphene, which initially weakens the van der Waals force between graphite layers by means of laser cracking treatment, and then combines with the thin layer of graphite through a release agent whose molecules can be inserted between the graphite layers, and plays a role in exfoliating the graphite. , and then through the expansion and explosion of the bubbles, the bonding force between the graphite layers is weakened again to break the connection between the graphite layers, so that the mixture of graphite, graphene and exfoliating agent can be obtained, and finally the exfoliation is carried out by means of separation. After the agent is removed, graphene is extracted from the mixture of graphite and graphene by extraction, and the preparation of graphene is completed. The process is simple, the preparation efficiency is high, and the graphene purity is high. The preparation process is environmentally friendly and does not produce pollution.

The invention discloses a method for preparing graphene based on an extraction purification technique. The method comprises the steps: the Van der Waals force between graphitic layers is primarily weakened by using cracking treatment; a stripping agent of which molecules can be inserted into the graphitic layers is bonded with straticulate graphite so as to play a role in stripping the graphite; the binding force between the graphitic layers is further weakened by a bubble expansion and explosion mode, so as to break the connection between graphitic layers, thus a mixture of graphite, graphene and the stripping agent is obtained, finally, the stripping agent is removed in a separation mode, the graphene is extracted from the mixture of graphite and graphene in a chemical extraction mode, and thus the graphene is prepared. The process is simple, the preparation efficiency is high, the purity of the graphite is high, the preparation process is environmentally friendly, and no pollution is generated.

The invention relates to the technical field of water treatment, and discloses a high-concentration brine evaporative crystallization device and method. The device comprises an evaporator, a phase separator, a crystal separator and a circulating pump; the evaporator comprises an evaporator shell, an upper tube plate, a lower tube plate and a plurality of hollow heat exchange tubes; the upper tubeplate, the lower tube plate and the hollow heat exchange tubes are arranged in the evaporator shell, and the evaporator shell is divided into a first cavity, a second cavity and a third cavity throughthe upper tube plate and the lower tube plate; the plurality of heat exchange tubes are arranged in the first cavity at intervals, a steam channel is formed by the plurality of heat exchange tubes and the evaporator shell, and the plurality of heat exchange tubes penetrate through the upper tube plate and extend into the second cavity by a preset height; the phase separator is communicated with the second chamber; the crystal separator is communicated with the phase separator; and an inlet of the circulating pump is respectively communicated with a strong brine inlet and a liquid outlet of the crystal separator. According to the high-concentration brine evaporative crystallization device and method, organic matter can be removed in evaporative crystallization, the blockage risk is reduced, and normal crystallization is guaranteed.

The invention discloses a front wing plate support assembly mold. The front wing plate support assembly mold comprises a lower mold core and an upper pressing plate. The lower mold core is provided with a first lower plane and a second lower plane which have the height fall, the first lower plane is provided with a first male die sleeve and a second male die sleeve; the second lower plane is provided with a third male die sleeve and a fourth male die sleeve; the upper pressing plate is provided with a first upper plane and a second upper plane, wherein the fall between the first upper plane and the second upper plane is matched with that between the first lower plane and the second lower plane; the first upper plane is provided with a first through hole and a second through hole allowing a punch to penetrate, the second upper plane is provided with a third through hole and a fourth through hole allowing the punch to penetrate; when the lower mold core and the upper pressing plate are buckled, the first through hole, the second through hole, the third through hole and the fourth through hole coincide with the axis of the first male die sleeve, the axis of the second male die sleeve, the axis of the third male die sleeve and the axis of the fourth male die sleeve. Multiple fixing holes can be punched at the same time through the mold, production efficiency is improved, one-time punching is achieved, and the size precision between the holes is ensured.

The present invention provides an ethylene tar treating method, which comprises that preheated ethylene tar enters a pretreatment reactor, and contacts a coking reaction effluent from a delayed cokingreaction system and a reaction effluent from a catalytic cracking reaction system, and a light component and a heavy component are obtained after separation; the heavy component enters the delayed coking reaction system, and the generated coking reaction effluent enters the pretreatment reactor; the light component and hydrogen enter a hydrogenation reaction system, and the reaction effluent is separated to obtain gas, a hydrogenated gasoline distillate, a hydrogenated diesel oil distillate and a hydrogenated heavy oil distillate; and the hydrogenated heavy oil distillate enters a catalytic cracking reaction system, and the reaction effluent directly enters the pretreatment reactor through the second material inlet of the pretreatment reactor. With the treating method of the present invention, the stable long-cycle operation of the whole treatment system can be ensured, and the yield of the light oil product is high.

The present invention provides a cosmetic product for removing acne, freckles and whitening and a preparation method thereof, which is mainly composed of Chinese medicine ingredients, fruit ingredients and a hydrogel matrix, and the hydrogel matrix accounts for 3-25% by weight of the total mass of the Chinese medicine ingredients and the fruit ingredients; The traditional Chinese medicine ingredients are composed of Angelica dahurica, Angelica, Puhuang, honeysuckle, peach kernel, Chuanxiong, Danshen, pearl powder, persimmon leaves, licorice and aloe vera, and the fruit ingredients are composed of banana, watermelon and kiwi. Preparation method: 1) Weighing Angelica dahurica, Angelica, Puhuang, Honeysuckle and peach kernel to extract volatile oil; 2) Soak the fruit components in 75% ethanol after crushing, and then centrifugally filter to obtain the fruit filtrate; 3) Weigh the rest except pearl powder The traditional Chinese medicine ingredients are decocted, concentrated, alcohol-precipitated, and the solvent is recovered together with the medicinal residue after collecting the volatile oil and the fruit filtrate to obtain the Chinese medicine liquid extract; 4) The volatile oil, the extract and other components are mixed and emulsified evenly to obtain a paste. The beauty product not only has the effects of removing acne and freckles, but also can whiten skin.

The invention discloses a treatment method and a device for acid gas. The device comprises a hydration reactor, a hydrate neutralizing device, a first-stage absorption reactor, a second-stage absorption reactor and a product tank. The invention also provides a method for treating the acid gas by adopting the device. According to the treatment method and the device, NaHS products meeting national quality standards can be produced while up-to-standard discharge of the acid gas is realized; environmental improvement is organically combined with the production process of a chemical product. Compared with the prior art, the method disclosed by the invention has the advantages that the acid gases containing CO2 and hydrogen sulfide can be economically and efficiently pretreated, energy in the technological process is reasonably utilized and energy consumption is greatly reduced; the whole treatment process is environmentally friendly and reliable and no three wastes are produced.

The invention discloses a treating technology and system for hydrogen sulfide and dioxide carbon containing acidic gas. With the adoption of the technology and the system, NaHS products meeting national quality standard can be produced while acidic gas standardized discharging is realized; the environment treatment and the production process of chemical products are integrated. Compared with the prior art, the CO2 gas and hydrogen sulfide containing acidic gas can be economically and efficiently pretreated; the energy in the technical process can be reasonably utilized, so that the energy consumption is extremely decreased; the whole treatment process is environmentally friendly, reliable, and free of three wastes.

The invention discloses an ethylene tar treatment process, which comprises that preheated ethylene tar contacts a coking reaction effluent from a delayed coking reaction system in a pretreatment reactor, and a light component and a heavy component are obtained after separation; the heavy component and delayed coking raw material oil enter the delayed coking reaction system, and the generated coking reaction effluent enters the pretreatment reactor; the light component and hydrogen enter a hydrogenation reaction system, and the reaction effluent is separated to obtain gas, gasoline distillate,diesel oil distillate and heavy oil distillate; and the heavy oil distillate enters a catalytic cracking reaction system, and the catalytic diesel oil obtained after separation enters the pretreatmentreaction. With the process the present invention, the stable long-cycle operation of the whole treatment system can be ensured, and the yield of the light oil product is high.

The invention discloses a method and a system for treating ethylene tar. According to the method, preheated ethylene tar contacts a coking reaction effluent from a delayed coking reaction system in apretreatment reactor, and a light component and a heavy component are obtained after separation; the obtained heavy component enters the delayed coking reaction system, and the generated coking reaction effluent enters the pretreatment reactor; and the light component and hydrogen enter a hydrogenation reaction system, and the reaction effluent is separated to obtain gas, gasoline distillate, diesel oil distillate and heavy oil distillate. The treatment system comprises the pretreatment reactor, the coking reaction system, and the hydrogenation reaction system. With the method and the system of the present invention, the stable long-cycle operation of the whole treatment system can be ensured, and the yield of the light oil product is high.