Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

81 results about "Separating agent" patented technology

Method for producing grain-oriented electromagnetic steel sheet

Proposed is a method for producing a grain-oriented electromagnetic steel sheet, with which it is possible to further improve magnetic properties and suppress fluctuations in magnetic properties and film properties in a coil without using an inhibitor. This method for producing a grain-oriented electromagnetic steel sheet includes: a hot rolling step for hot rolling a steel roll material having a constituent composition which contains C, Si, Mn, acid-soluble Al, N and Sb and in which S and Se are contained so as to satisfy a prescribed relational expression; an optional hot-rolled sheet annealing step; a cold rolling step; an acid washing step; a primary recrystallization annealing step; and a finish annealing step. In intermediate annealing in the hot-rolled sheet annealing step or cold rolling step before a final cold rolled steel sheet is obtained, the γ-phase fraction in the steel structure at the annealing temperature is 1.0-25.0 vol%, the average cooling speed after annealing is 20-50ºC / s, acid washing is carried out using a solution which contains 2-15 mass% of Fe ions and has an acid concentration of 1-20 mass% in the acid washing step, and an annealing separating agent contains a Ti compound at a quantity of 0.3-8 parts by mass in terms of Ti relative to 100 parts by mass of magnesia in the finish annealing step.
Owner:JFE STEEL CORP

Manufacturing method and equipment for oriented electromagnetic steel sheets

This invention provides a method for manufacturing oriented electromagnetic steel sheets that significantly improves manufacturability, and an apparatus for implementing the method. The method for manufacturing oriented electromagnetic steel sheets comprises the following series of steps: hot rolling a steel billet having a specified composition; hot-rolled sheet annealing; cold rolling once or twice with a total reduction rate of 80% or more from the thickness of the obtained hot-rolled sheet to the thickness of the cold-rolled product; recrystallization annealing; coating the steel sheet surface with an annealing separating agent; final product annealing; and planarization annealing for planarization. In this method for manufacturing oriented electromagnetic steel sheets, the grain boundary occupancy of recrystallized carbides in the hot-rolled sheet after annealing and before cold rolling is 80% or more, and the initial reduction during cold rolling is set to a strain rate of 200 / s or less, a reduction rate of 30% or less, and a steel sheet temperature of 90°C or less when biting into the rolls.
Owner:JFE STEEL CORP

Intelligent lubricant spraying device and spraying control method for rubber-tired road roller

The application relates to the technical field of road engineering machinery, in particular to a separating agent spraying device for a rubber-tired road roller and a spraying control method. The device comprises an information acquisition unit, a spraying device and a controller. The controller dynamically determines a target spraying amount and controls the spraying device to execute based on the rubber wheel surface adhesion state information acquired by the information acquisition unit in real time, forming a real-time feedback control closed loop. The controller has a built-in mapping relationship model, and the model is iteratively updated after each spraying according to the state information collected again as effect data, realizing self-learning and continuous optimization of the system. The scheme realizes the leap of separating agent spraying from a fixed mode to dynamic and accurate regulation and control through the construction of an intelligent closed loop of "perception-decision-execution-optimization", solves the problem of material waste; at the same time, by introducing the model online updating mechanism, the system has self-adaptive ability and can continuously optimize the control strategy according to the working conditions, realizing long-term optimal control performance and material utilization.
Owner:LANZHOU JIAOTONG UNIV +1

Separation agent

Provided is a separation agent having a carrier and a ligand that is supported on the surface of the carrier by means of physical adsorption or chemical bonding, wherein the ratio of the particle diameter d90 to the particle diameter d10 of the separation agent is 1.00-1.38, the carrier is core-shell particles having an inorganic non-porous core and a porous shell, the porous shell contains silica gel, and the ligand is one or more selected from the group consisting of optically active polymers, optically inactive polyesters, proteins, and nucleic acids. The separation agent has good separation performance.
Owner:DAICEL CORP

Method for producing oriented electromagnetic steel sheet

Provided is a method for producing an oriented electromagnetic steel sheet capable of improving magnetic flux density. When a steel material having a predetermined component composition is subjected to hot rolling, cold rolling, decarburization annealing, application of an annealing separation agent, and finish annealing in sequence, the present invention controls: a storage condition between final cold rolling of a cold rolled plate coil and decarburization annealing; and a temperature fluctuation management condition provided in the middle of the temperature raising process of the decarburization annealing.
Owner:JFE STEEL CORP

Rotary valve for adjusting the flow rate of a pourable co 2 separation agent, and co 2 separation device

The invention relates to a rotary valve (10) for adjusting the flow rate of a gravity-driven flow (12) of a pourable material (14, 14'), in particular a pourable CO2 separation agent (14, 14') in a CO2 separation device (10) for separating CO2 from a supplied air flow (40). The rotary valve (10) has a rotatably mounted valve element (22) with a through-channel which forms, between a channel inlet (28) and a channel outlet (30), a maximum passage angle (32) relative to a horizontal plane (34) for the gravity-driven flow (12) of the pourable material (14, 14'), said maximum passage angle (32) being variably adjustable by rotating the valve element (22), and thus the through-channel (26), relative to the horizontal plane (34) in order to adjust the flow rate of the gravity-driven flow (12) of the pourable material (14, 14').
Owner:ROBERT BOSCH GMBH

Silicon nitride ceramic chip and preparation method thereof

PendingCN121974707ASlurrySeparating agent
The invention discloses a silicon nitride ceramic chip and a preparation method thereof, and relates to the technical field of ceramic materials. Comprising the following steps: 1, sequentially adding ceramic powder and a sintering aid serving as solid-phase components into a solvent, adding a binder, uniformly mixing, and carrying out mixing and ball milling to obtain ceramic slurry; step 2, coating the ceramic slurry on a membrane belt for tape casting, and drying to obtain a first green sheet and a second green sheet with different thicknesses; 3, the two faces of the second green body piece are coated with a separating agent, and then the second green body piece and the first green body piece are alternately stacked; sintering in a nitrogen atmosphere, and stripping along a separating agent interface after sintering to obtain a first silicon nitride ceramic chip and a second silicon nitride ceramic chip; the silicon nitride ceramic chips are silicon nitride ceramic chips with different thicknesses; the thickness of the first green body sheet is smaller than or equal to 0.15 mm, and the thickness of the second green body sheet is larger than or equal to 0.20 mm. The silicon nitride ceramic chip prepared by the invention has good cutting yield and preparation yield, and the ceramic chip has good appearance performance.
Owner:江苏富乐华功率半导体研究院有限公司

Method for monitoring and / or controlling a CO2 separation device

A method for monitoring and / or controlling a CO2 separation device (10) for separating CO2 from a supplied gas stream (14), in particular an air stream (14) from an environment, is presented, wherein a weight and / or an extent of, in particular, pourable CO2 separation agents is determined during the execution of the CO2 separation process and / or the CO2 release process, in particular by means of a sensor unit (42), and an information signal and / or control signal is / are output.
Owner:ROBERT BOSCH GMBH

High-valued recycling method of waste lithium ion battery aluminum powder

The invention discloses a high-valued recycling method of waste lithium ion battery aluminum powder, and belongs to the technical field of battery recycling, the method comprises the following steps: adding waste lithium ion battery aluminum powder into a high-temperature reactor, heating, cooling, putting into a separating agent solution, separating through a superconducting magnetofluid to obtain wet aluminum powder, and recycling the wet aluminum powder to obtain the high-valued recycling method of the waste lithium ion battery aluminum powder. Removing wastewater after ultrasonic screening, drying to obtain dry aluminum powder, adding the dry aluminum powder into vacuum distillation equipment after hydrogen reduction reaction, adding a cosolvent, uniformly mixing, heating to evaporate the dry aluminum powder, and condensing and recycling to obtain an electronic-grade aluminum powder product. In the high-valued regeneration process of the waste lithium ion battery aluminum powder, processes such as separating agent separation, superconducting magnetofluid, hydrogen reduction and co-dissolution high-temperature evaporation are added, the operation is simple and convenient, the value of the final electronic-grade aluminum powder product is greatly improved, and large-scale industrial production can be realized.
Owner:INST OF ENERGY HEFEI COMPREHENSIVE NAT SCI CENT (ANHUI ENERGY LAB)

Polyimide insulating paint, preparation and application thereof

The application provides a polyimide insulating paint, preparation and application thereof. The polyimide insulating paint comprises a polyimide precursor, a crosslinking agent and a phase separation agent, the polyimide precursor is formed by reaction of aromatic diamine and aromatic dianhydride in an organic solvent, the aromatic dianhydride comprises 3,3',4,4'-diphenyl tetracarboxylic dianhydride with a molar content of 10-30%; the phase separation agent is an organic solvent with a boiling point higher than 170 DEG C, and the content of the crosslinking agent and the phase separation agent is respectively 0.1-10wt% and 10-50wt% of the total mass of aromatic dianhydride and aromatic diamine. The application also provides an electromagnetic wire comprising a conductor and an insulating layer coated on the surface of the conductor, the insulating layer is formed by coating and curing of the polyimide insulating paint of the first aspect. The polyimide insulating paint provided by the application has the advantages of low BPDA content, low cost, resistance to ATF oil water and high PDIV.
Owner:ZHEJIANG LONGSHENG GROUP CO LTD +1

Bituminous pavement anti-bonding paving tool

The utility model relates to the technical field of asphalt paving, in particular to an asphalt pavement anti-bonding paving tool which comprises a bulldozing rake rod, one end of the bulldozing rake rod is connected with a scraper, and the asphalt pavement anti-bonding paving tool is characterized in that a liquid conveying system is arranged on the bulldozing rake rod and comprises an opening and closing valve, a liquid storage tank and a liquid conveying pipeline, the liquid storage tank is arranged between the opening and closing valve and the liquid conveying pipeline; the liquid storage tank is filled with an asphalt separant and is fixed on the bulldozing rod through an annular fastening buckle, and the annular fastening buckle is welded on the surface of the bulldozing rod; the liquid conveying pipeline is fixed to the surface of the bulldozing rod through an annular ring and extends to the scraper in the length direction of the bulldozing rod, the liquid conveying pipeline is of a Y-shaped structure, the forked position of the liquid conveying pipeline extends in the width direction of the scraper, and a plurality of liquid conveying holes are formed in the portion, on the surface of the scraper, of the liquid conveying pipeline. The problem of scraper adhesion is effectively solved, and the operation efficiency of workers and the utilization rate of the bulldozing rake are improved.
Owner:SHENZHEN ROAD & BRIDGE CONSTR GRP

Water-swelling elastic plugging agent for water-based drilling fluid and preparation method thereof

The invention discloses a water-swelling elastic plugging agent for a water-based drilling fluid and a preparation method of the water-swelling elastic plugging agent. The water-swelling elastic plugging agent comprises the following components in parts by weight: 100 parts of a polyolefin elastomer matrix material; 15 to 20 parts of a reinforced matrix material; 0.8 to 1.5 parts of a polyolefin elastomer matrix material cross-linking agent; 8 parts to 15 parts of a reinforcing agent A; 20 to 30 parts of a reinforcing agent B; 15 to 30 parts of super absorbent resin; 15 to 20 parts of a plasticizer; 0.2 to 0.8 part of an isolating agent; 0.5 to 1 part of an anti-aging agent; the plugging agent provided by the invention is simple in preparation process, not only is beneficial to industrial production, but also is convenient to prepare plugging slurry on site, can achieve a good plugging effect, and provides an effective technical means for well leakage treatment.
Owner:CHINA NAT PETROLEUM CORP +1

Rotary valve for adjusting the flow rate of a pourable CO2 separation agent and CO2 separation device

A rotary valve (10) is proposed for adjusting the flow rate of a gravity-driven flow (12) of a bulk material (14, 14'), in particular a bulk CO2 separation agent (14, 14') in a CO2 separation device (10) for separating CO2 from a supplied air stream (40). The rotary valve (10) has a rotatably mounted valve element (22) with a through-channel which forms a maximum through-angle (32) relative to a horizontal plane (34) between a channel inlet (28) and a channel outlet (30) for the gravity-driven flow (12) of the bulk material (14, 14'), wherein the maximum through-angle (32) can be variably adjusted by rotating the valve element (22) and thus the through-channel (26) relative to the horizontal plane (34) in order to adjust the flow rate of the gravity-driven flow (12) of the bulk material (14, 14').
Owner:ROBERT BOSCH GMBH

Separant adding device for pasty film processing

The utility model relates to the technical field of film processing, and discloses a separant adding device for pasty film processing. Comprising a transmission roller and further comprises a film body arranged on one side of the transmission roller, and guide rollers are connected to the two sides of the lower portion of the film body; according to the utility model, through the arrangement of the feeding assembly, the film body can be soaked in a material by the feeding assembly, so that the film body can be in full contact with a separant, and the laminating roller can extrude the film body coated with the separant, so that the thickness of the separant on the film body is uniform; meanwhile, redundant separant on the film body can be extruded out, the separant is kept to be evenly fed on the film body, the drying assembly is arranged, the film body coated with the separant can be rapidly dried through the drying assembly, therefore, the drying time of the film body can be saved, and then the production and preparation efficiency of the film body is improved.
Owner:SHANDONG HERUNDUO NEW MATERIALS CO LTD

A lubricating grease for construction machines and a method for producing the same

The application provides a special grease for engineering machinery and a preparation method thereof, and belongs to the technical field of greases. The grease is prepared from the following components in parts by weight: 75-90 parts of composite base oil, 7-10 parts of composite soap, 3-7 parts of composite anti-wear agent, 0.2-1.5 parts of composite antioxidant, 0.2-3 parts of alkaline stabilizer, 0.01-0.05 parts of rust inhibitor, 0.5-5 parts of water separating agent and 5-30PPm of defoaming agent. The self-made composite anti-wear agent and the low-amount rust inhibitor are used, so that the protection of the grease on the friction pair is more comprehensive, and the anti-wear performance is more excellent.
Owner:PUYANG XINYE SPECIAL LUBRICATING OIL & GREASE CO LTD

Containers with natural organic material and devices and methods for producing the same

The present invention relates to a container comprising a fiber-based body made of a first natural organic material and an inner coating of the fiber-based body, wherein the fiber-based body comprises a separation agent for separating the fiber-based body. Furthermore, a device and method for manufacturing such a container are provided.
Owner:KRONES AG

Powdery film separant dipping device

The utility model relates to the technical field of rubber sheet production, and discloses a powdery rubber sheet separant dipping device. Comprising a box body and further comprises a supporting rod arranged on one side of the box body, the upper portion of the supporting rod is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a lead screw, and the outer portion of the lead screw is connected with a threaded sliding block. The operation is simple and fast, meanwhile, the powder blowing assembly is arranged, the powder blowing assembly can suck the separant in the material box and spray the separant on all the rubber pieces from the upper portion of the box body, when the separant falls into the box body, the air blower can blow away the powdery separant to all the positions of the box body, and therefore the separant can be sprayed on the rubber pieces. Therefore, the separant can be quickly and uniformly attached to each film, so that the working intensity of workers can be reduced, the production efficiency is improved, and the device is suitable for batch processing and use.
Owner:SHANDONG HERUNDUO NEW MATERIALS CO LTD

Method for producing effect pigments

A method for producing an effect pigment (2) is disclosed. The method comprises the step of providing a donor film (8) having a relief structure (12) arranged thereon having a high mesa (12a), a recessed region (12c) and a side surface (12b) located therebetween. A reflective layer (16) is applied to the relief structure (12). An acceptor film (4) is provided, which has an adhesive layer (6) arranged on one side thereof. A first layer composite (1) is formed from the donor film (8) and the acceptor film (4), the adhesive layer (6) of the acceptor film (4) being pressed together with the reflective layer (16) of the donor film (8) in a high mesa (12a). The donor film (8) is peeled off from the acceptor film (4), the reflective layer (16) on the recessed regions (12c) and the side surfaces (12b) remains on the donor film (8) as a residual layer (26), sub-blocks (25) of the adhesive layer (6) and the reflective layer (16), which are previously arranged on the high mesa (12a), lie on the acceptor film (4), and the sub-blocks (25) are peeled off from the body film (4), the outer contour of the effect pigment (2) is predetermined by the configuration of the high mesa (12a). In the method, the relief structure (12) is subjected to a visbreaking pretreatment prior to the application of the reflective layer (16) over the entire surface, and the stripping of the sub-blocks (25) as effect pigments (2) from the receptor film (4) comprises stripping or releasing the adhesive layer (6), or differentiating the sub-blocks (25) using a separating agent, the adhesive layer (6) remaining on the receptor film (4).
Owner:GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH

Film cooling and separant integrated device

The utility model relates to the technical field of rubber films, and particularly discloses a film cooling and isolating agent integrated device which comprises an isolating pool, an immersion cavity is arranged on the inner side of the isolating pool, a plurality of synchronous structures are arranged in the immersion cavity, each synchronous structure comprises a cooling roller, and rotating rollers are symmetrically arranged in the immersion cavity. Sealing bearings are symmetrically arranged on the circumferential surfaces of the two cooling rollers and the circumferential surfaces of the rotating rollers, each cooling roller and each rotating roller are rotationally installed on the isolation pool through the sealing bearings, fixing rings are symmetrically and fixedly installed on the circumferential surfaces of the two rotating rollers, and a plurality of connecting plates are fixedly installed between every two fixing rings. A plurality of fixing blocks are fixedly installed on the outer side of each connecting plate, an ultrasonic generator is fixedly installed on the outer side of each fixing block, the synchronous structure is arranged, and the cooling rollers are arranged in a parallelogram shape, so that when a film is conveyed, the cooling rollers can make full contact with the film, double-face alternate cooling is formed on the film, and the film can be cooled conveniently. The spacer fluid can be fully contacted with the film, and the processing quality is improved.
Owner:QINGDAO CHENGHE ELECTRONIC TECH CO LTD

Dead cell separating agent and method for producing cells using the same

To provide a dead cell separating agent that enables selective and simple removal of dead cells present in a eukaryotic cell culture liquid, as well as a method for producing eukaryotic cells using the separating agent.SOLUTION: The foregoing problem is solved by the dead cell separating agent comprising an insoluble carrier and Tim4 (T-cell immunoglobulin and mucin domain 4) immobilized on the insoluble carrier.SELECTED DRAWING: None
Owner:TOSOH CORP

One-time forming construction method for building surface layer

The invention relates to a construction method of a building surface layer, in particular to a one-time forming construction method of the building surface layer, which comprises the following steps of: tamping and flattening a foundation by using tamping equipment; or constructing a steel pipe for supporting the template, a supporting plate and a bent frame of a square keel to obtain a flat foundation layer or a template layer; after the formwork is corrected, anti-leakage strips are pasted to all the gaps, and a concrete separant is sprayed on the formwork; a concrete surface layer line and a reinforced concrete structure layer line are sequentially marked on the lower portion of the column reinforcement cage from bottom to top; after a layer of concrete is laid, a reinforcing mesh is laid; a reinforced concrete structure layer is obtained after a laser transmitter and a laser leveling machine are used; the concrete pouring thickness is determined through a concrete surface layer line, and the effects of scraping, slurry extraction, compaction and one-time survival can be achieved after all areas are constructed; the column reinforcement cage serves as a floor height reference, the upper reinforcement mesh and the lower reinforcement mesh are connected through the n-shaped reinforcement supports, and one-time forming of the building surface layer is achieved through assistance of the laser transmitter and the laser leveling machine.
Owner:HENAN INSTALLATION GRP

Manufacturing method of ultra-thin and ultra-wide 06Ni9DR medium plate for LNG storage tank

This invention discloses a method for manufacturing ultra-thin and ultra-wide 06Ni9DR medium-thick plates for LNG storage tanks. The method includes billet design, sub-bill surface treatment, beveling, preparation of protective separating agent, non-vacuum welding assembly, drilling vent holes, spraying anti-oxidation coating, heating, rolling, cutting and separation, heat treatment, and inspection. The chemical composition of the 06Ni9DR plates is controlled by mass percentage as follows: C≤0.05%, Si≤0.35%, Mn: 0.30%~0.80%, P≤0.005%, S≤0.002%, Ni: 8.50%~10.00%, with the remainder being iron and unavoidable impurities. This invention effectively reduces production costs, improves assembly efficiency, and can be used for mass production. The produced thin and wide 06Ni9DR steel plates fully meet the technical requirements for ultra-large LNG storage tanks in China.
Owner:SHANXI TAIGANG STAINLESS STEEL CO LTD

Separating agent proportioning device for sludge solidification

The utility model discloses a separating agent proportioning device for sludge solidification, which comprises a proportioning barrel, an interlayer is welded in an inner cavity at the top of the proportioning barrel, an agent bin for mixing agents is formed between the interlayer and the top of the proportioning barrel, a mixing structure is arranged in the agent bin, and the mixing structure is connected with the proportioning barrel. The top of the proportioning barrel is provided with a chemical adding port for adding chemicals; according to the utility model, the shearing structure is arranged, the shearing plate is linked with the rotating rod through the hollow connecting structure, and the round holes in the edge of the shearing plate are used for physically cutting massive sludge to crush consolidated matters; meanwhile, the stirring paddle in the middle continuously stirs the sludge at a low speed, shearing and stirring are performed simultaneously, mixing is uniform, and the mixing efficiency is improved. The rotating brush plate arranged in the medicament bin is matched with linkage driving of the rotating rod, medicaments can be fully stirred, caking or layering of the medicaments is avoided, the proportioning uniformity is improved, extra driving is not needed, and the space utilization rate of the equipment can be improved.
Owner:南京沃锐特环境科技有限公司

A lithium-cobalt-nickel separation agent and a lithium-cobalt-nickel separation method

The application belongs to the technical field of waste battery recycling, and provides a lithium-cobalt-nickel separation agent and a lithium-cobalt-nickel separation method. The lithium-cobalt-nickel separation agent provided by the application comprises a No. 1 separation agent and a No. 2 separation agent. The amino group in the No. 1 separation agent can be complexed with cobalt and nickel ions, so that the cobalt and nickel ions are co-precipitated with the separation agent, thereby separating lithium. The degree of protonation of the organic amine in the No. 2 separation agent is 60-100%, which can reduce the complexing strength of the amino group in the organic amine, so that most of the nickel is dissolved from the cobalt-nickel product, thereby realizing the separation of cobalt and nickel. The separation agent provided by the application only introduces one kind of organic amine to prepare the separation agent, reduces the introduction of impurity ions, reduces the difficulty of wastewater treatment in the later stage, and the separation efficiency of lithium can reach more than 97%, and the recovery rates of cobalt and nickel can reach more than 80% and 92%, respectively.
Owner:HUAZHONG AGRI UNIV

Mixed acid separation device

The utility model discloses a mixed acid separation device which comprises a separation device shell, at least one group of partition plate assembly is fixed in the separation device shell, the partition plate assembly comprises a first partition plate and a second partition plate, the first partition plate and the second partition plate are obliquely arranged, and the oblique directions of the first partition plate and the second partition plate are different; the separation device shell is sequentially divided into a first cavity, a second cavity and a third cavity through the first partition plate and the second partition plate, outlets are formed in the bottom ends of the inclined faces of the first partition plate and the second partition plate correspondingly, and separating agent adding openings are formed in the side walls of the first cavity, the second cavity and the third cavity correspondingly. Each outlet is provided with a control valve, the first cavity, the second cavity and the third cavity are each divided into an upper part and a lower part, and the upper parts and the lower parts are detachably connected through flanges. The acid liquid separator is simple in structure and capable of separating mixed acid liquid.
Owner:NINGBO KEXIYONG TECH CO LTD

Stirring system for improving film separant covering uniformity

The invention belongs to the technical field of tire manufacturing, and particularly relates to a stirring system for improving film separant covering uniformity, which comprises an accommodating groove for accommodating a separant, a stirrer for stirring the separant is arranged at the bottom of the accommodating groove, and an ultrasonic oscillator is mounted on the side wall of the groove; a closed-loop circulation pipeline is connected outside the containing groove, a centrifugal pump and a concentration sensor are arranged in the circulation pipeline, an overflow buffer weir is arranged at an inlet of the containing groove, and a slope type guide plate is additionally arranged at an outlet of the containing groove; a defoaming spray head is arranged above the liquid level; a liquid supplementing valve, a concentration sensor and a liquid level meter are also arranged in the accommodating groove; through the structure, the concentration uniformity of the separant is dynamically maintained, and precipitation layering is eliminated; the liquid level can be stabilized, bubbles can be eliminated, and coverage missing is avoided; meanwhile, the concentration and the liquid level can be monitored in real time, and automatic and accurate liquid supplementing is achieved.
Owner:TIUMSUN RUBBER TIRE WEIHAI

Underwater non-dispersible cement slurry system for ocean well cementation based on charge self-attraction and preparation method thereof

The invention discloses an underwater non-dispersible cement slurry system for ocean well cementation based on charge self-attraction and a preparation method thereof.The cement slurry system comprises oil well cement, a lightening agent, a suspending agent, a fluid loss agent, a retarder, a self-separating agent, a defoaming agent and fresh water, is a low-density cement slurry system, has good high viscosity and thixotropy, and can be used for well cementation. The influence of water invasion is avoided; meanwhile, when ocean oil and gas leakage occurs, the charge self-attraction underwater non-dispersion cement paste system can perform a leakage point plugging technology in a seawater environment, and effective strength is rapidly formed. In the prior art, conventional cement paste cannot form a structure and cannot form strength after being poured into the seabed and mixed with seawater; the charge self-attraction underwater non-dispersible cement paste system is not influenced by seawater, can quickly form effective strength after being poured into the seawater, charges among cement particles are adsorbed, the cement structure is not dispersed, and the cement structure can be stacked at a relatively high height, so that oil and gas leakage points of a seabed are blocked, and the ocean is prevented from being further polluted.
Owner:GUANGZHOU WUSHAN MATERIAL TECH CO LTD

High-efficiency oil sludge separation agent, preparation method and application thereof in oil sludge cleaning

ActiveCN118221320BLimoneneOil sludge
The present application relates to a kind of high-efficiency oil sludge separating agent, preparation method and its application in oil sludge cleaning.The high-efficiency oil sludge separating agent includes the following weight parts of component, coconut oil diethanolamide 25-45 parts, sulfonated succinic acid dioctyl ester sodium salt 15-25 parts, sodium dodecyl sulfate 3-10 parts, propylene glycol 1-5 parts, alpha-pinene or limonene 3-10 parts, alpha-terpineol or menthol 3-10 parts, acetyl linaloe 3-8 parts, citral 1-5 parts, water 15-25 parts.The application of the high-efficiency oil sludge separating agent in oil sludge cleaning includes the following steps, S1, oil sludge and agent are loaded into first container;S2, add cleaning water, keep the temperature of mixed solution at 50-70 DEG C, use stirrer to carry out high-speed shearing stirring, stirring speed is above 3000r / min;S3, after stirring, mixed solution is transferred to second container, continue to add cleaning water;S4, continue to stir, stirring speed is above 100r / min.The present application has good oil sludge separation efficiency.
Owner:ZHE JIANG ECO ENVIRONMENTAL TECH CO LTD