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76results about How to "Reduced dosing time" patented technology

Surfactant for displacing oil of offshore oilfield and preparation method thereof

The invention relates to surfactant for displacing the oil of an offshore oilfield and a preparation method thereof, and the surfactant and the preparation method thereof belong to the technical field of surfactants. The surfactant for displacing the oil of the offshore oilfield comprises the following components: hydroxypropyl sulfo betaine type amphoteric surfactant is adopted as the main agent and alkylphenol polyoxyethylene ether non-ionic surfactant serves as the auxiliary agent. The preparation method comprises the following steps that 1) the main agent is prepared: (1) water is adopted as the solvent to react with sodium hydrogen sulfite, sodium sulfite and epoxy chloropropane, and 3-chloro-2-hydroxypropyl sodium sulfonate is prepared; (2) low-carbon alcohol is adopted as the solvent, the product in the step (1) and emulsifier are dissolved, 12/14 tertiary amine is dripped in, and reflux reaction is carried out; (3) the tertiary amine and the solvent which do not react are removed, recrystallized and filtered; 2) assistant agent is selected; and 3) the main agent and the auxiliary agent are prepared by the mass ratio of 30 to 50: 30 to 90. The surfactant for displacing the oil of the offshore oilfield and the preparation method thereof have the advantages of ultra-low interfacial tension and good performance of emulsified crude oil, no toxin, no harm to the stratum, good compatibility, cooperation with polymer, microorganism and other flooding agent to displace oil and the like.
Owner:秦皇岛诺曼克化工科技有限公司 +1

Continuous liquid preparing device for medical supply room

The invention discloses a continuous liquid preparing device for a medical supply room. The continuous liquid preparing device comprises a liquid preparing device body, a liquid mixing bin and liquidholding bins, wherein XTL100 electric telescopic rods are symmetrically arranged on two sides of the bottom of the liquid preparing device body; a second electromagnetic valve and a flow meter are sequentially arranged in the bottom center position of each liquid holding bin from top to bottom; a stirring rod is arranged inside the liquid mixing bin; a first electromagnetic valve is arranged at the bottom of the liquid mixing bin. In the continuous liquid preparing device disclosed by the invention, the second electromagnetic valve and the flow meter are sequentially arranged at the bottom ofeach liquid holding bin from top to bottom, and the bottom of each flow meter is communicated with the liquid mixing bin through a hose; the stirring rod with an S-shaped structure is arranged insidethe liquid mixing bin; liquid with different mixture ratios can be sufficiently mixed by a stirring action of the stirring rod and further liquid preparing time is shortened; besides, a prepared disinfectant can be quantitatively drained according to a calibration line etched on the outer part of the liquid mixing bin and the needs, so that waste of the disinfectant is effectively avoided, and thecost is reduced.
Owner:CHENGDU BAIFULONG PRECISION MACHINERY CO LTD

Water dispersible profile control agent for oil extraction and preparation method thereof

The invention discloses a water dispersible profile control agent for oil extraction and a preparation method thereof. The water dispersible profile control agent comprises the following components in parts by weight: 70-150 parts of acrylamide, 5-10 parts of anionic monomer, 5-10 parts of cationic monomer, 1-5 parts of hydrophobic monomer, 15-55 parts of dispersant, 30-85 parts of inorganic salt and 230-500 parts of deionized water. By virtue of water in water dispersion polymerization, the product is instant, so that the liquid preparation time and the curing time of a conventional polyacrylamide solution are shortened. A cationic chain link is introduced based on a conventional gel, so that gel molecules and rocks with negative electricity firmly adsorb so as to increase the flow resistance of water and improve the scouring resistance of the gel. The water dispersible profile control agent is low in initial viscosity, good in pumping property, simple in construction process and small in environmental damage. The water dispersible profile control agent is good in biological stability, and the profile control period of validity is over half a year. The product is obtained by virtue of water in water dispersion polymerization and is instant in the using process.
Owner:大庆高新区华龙祥化工有限公司

Preparation method of multifunctional slick water fracturing fluid drag reducer

The invention relates to a preparation method of a multifunctional slick water fracturing fluid drag reducer. The preparation method comprises the following steps: applying inverse emulsion polymerization reaction for compounding two non-ionic emulsifiers into a compound emulsifier, dissolving the compound emulsifier in an oily medium in the mass fraction of 0.3%, stirring for 1-2 hours under the protection of nitrogen, then adding 0.3% by mass fraction of a hydrophobic monomer, then adding 0.3-0.5% by mass fraction of a chelating agent and monomer solution of acrylamide and 2-acrylamide-2-methylpropanesulfonic acid, starting to heat, and after temperature is increased to 52-57 DEG C, adding an oil soluble initiator and a water soluble initiator in batches, and carrying out heat preservation for 8-10 hours after the initiator is completely added, so that stable water-in-oil type polymer emulsion is obtained finally. According to the invention, an inverse emulsion polymerization method is utilized, and by introducing special functional group substances and emulsifiers, a slick water drag reducer with anti-drag and discharge assisting functions is developed, slick water cost is reduced, more importantly, fluid preparation time is shortened, a fluid preparation procedure is simplified, and construction efficiency is greatly improved.
Owner:江西炼石环保科技有限公司

Preparation method of a multifunctional slippery water fracturing fluid drag reducer

The invention relates to a preparation method of a multifunctional slick water fracturing fluid drag reducer. The preparation method comprises the following steps: applying inverse emulsion polymerization reaction for compounding two non-ionic emulsifiers into a compound emulsifier, dissolving the compound emulsifier in an oily medium in the mass fraction of 0.3%, stirring for 1-2 hours under the protection of nitrogen, then adding 0.3% by mass fraction of a hydrophobic monomer, then adding 0.3-0.5% by mass fraction of a chelating agent and monomer solution of acrylamide and 2-acrylamide-2-methylpropanesulfonic acid, starting to heat, and after temperature is increased to 52-57 DEG C, adding an oil soluble initiator and a water soluble initiator in batches, and carrying out heat preservation for 8-10 hours after the initiator is completely added, so that stable water-in-oil type polymer emulsion is obtained finally. According to the invention, an inverse emulsion polymerization method is utilized, and by introducing special functional group substances and emulsifiers, a slick water drag reducer with anti-drag and discharge assisting functions is developed, slick water cost is reduced, more importantly, fluid preparation time is shortened, a fluid preparation procedure is simplified, and construction efficiency is greatly improved.
Owner:江西炼石环保科技有限公司

Surfactant for displacing oil of offshore oilfield and preparation method thereof

The invention relates to surfactant for displacing the oil of an offshore oilfield and a preparation method thereof, and the surfactant and the preparation method thereof belong to the technical field of surfactants. The surfactant for displacing the oil of the offshore oilfield comprises the following components: hydroxypropyl sulfo betaine type amphoteric surfactant is adopted as the main agent and alkylphenol polyoxyethylene ether non-ionic surfactant serves as the auxiliary agent. The preparation method comprises the following steps that 1) the main agent is prepared: (1) water is adopted as the solvent to react with sodium hydrogen sulfite, sodium sulfite and epoxy chloropropane, and 3-chloro-2-hydroxypropyl sodium sulfonate is prepared; (2) low-carbon alcohol is adopted as the solvent, the product in the step (1) and emulsifier are dissolved, 12 / 14 tertiary amine is dripped in, and reflux reaction is carried out; (3) the tertiary amine and the solvent which do not react are removed, recrystallized and filtered; 2) assistant agent is selected; and 3) the main agent and the auxiliary agent are prepared by the mass ratio of 30 to 50: 30 to 90. The surfactant for displacing the oil of the offshore oilfield and the preparation method thereof have the advantages of ultra-low interfacial tension and good performance of emulsified crude oil, no toxin, no harm to the stratum, good compatibility, cooperation with polymer, microorganism and other flooding agent to displace oil and the like.
Owner:秦皇岛诺曼克化工科技有限公司 +1

Slime water mixed dosing and filter press linkage system and method for coal dressing

The invention relates to a slime water mixed dosing and filter press linkage system and method for coal dressing. According to the invention, a first automatic dosing belt is used for adding an anionic agent into a first funnel, and a second automatic dosing belt is used for adding a cationic agent into a second funnel; the first funnel, a gas ring vacuum pump, a mixing device, a stirring barrel,a chemical storage box, a dosing device, a concentration tank, a filter pressing feeding barrel and a filter press are sequentially connected through connecting pipelines; the second funnel is connected with the stirring barrel; a slime water main pipe is connected with the concentration tank; a feeding concentration meter and a first flow meter are installed on the slime water main pipe; an interface instrument, an underflow concentration meter and a second flow meter are installed in the concentration tank; and an electromagnetic valve, a current measuring meter and a filtrate water flow meter are installed on the filter press. According to the invention, automatic combined dosing is achieved, manpower is reduced, and labor intensity is reduced; agent waste can be effectively reduced, and a dosing process can be more accurately controlled; equipment investment can be reduced, and cost is effectively reduced; and dosing time is shortened and working efficiency is improved.
Owner:HUADIAN ELECTRIC POWER SCI INST CO LTD

Rectal administration device with electric adjusting function for gastroenterology department

The invention discloses a rectal administration device with an electric adjusting function for the gastroenterology department. The rectal administration device comprises a fixing pipe, a round head and a silica gel protective cover, wherein a blocking cover is arranged on the fixing pipe in a penetrating mode; a soft sliding column is slidably connected into the fixing pipe through a limiting mechanism, and the right end of the fixing pipe is connected with an electric telescopic rod through a connecting plate; and the telescopic end of the electric telescopic rod is connected with the rightend of a soft sliding column through a mounting plate. The rectal administration device with the electric adjusting function for the gastroenterology department is simple in structure, low in manufacturing cost and easy to operate, the rectal administration time can be shortened, the silica gel protective cover cannot hurt the rectum of a patient, and the pain of the patient is relieved. The softsliding column can be driven to move in the fixing pipe through the mounting plate by stretching and retracting of the electric telescopic rod, so that the round head with the medicine moves to the medicine feeding depth, the medicine feeding depth can be controlled, and the treatment effect is improved.
Owner:钟江鹏
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