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36 results about "Acid gel" patented technology

Salicylic Acid Gel. Salicylic acid is an ingredient commonly used to help clear existing pimples and to help prevent them before they start. For those who deal with acne, you can find salicylic acid in a gel or cream form.

Clean viscous acid for acid fracturing of carbonate reservoir

The invention discloses a clean viscous acid for acid fracturing of a carbonate reservoir, which is applied to the technical fields of acidification and acid fracturing of petroleum carbonate reservoirs. The clean viscous acid consists of the following components in percentage by weight: 3-7 percent of hexadecyl trimethyl ammonium bromide, 0.3-0.7 percent of sodium salicylate, 15-28 percent of hydrochloric acid, 0.125-0.25 percent of citric acid or 0.05-0.1 percent of CX-301 or 0.3-0.5 percent of TW-1 serving as an iron ion stabilizing agent, 0.2-0.25 percent of a diimidazoline quaternary ammonium salt and the balance of water. The clean viscous acid has high retardative property, the retarding rate can reach 42-56 percent, the fresh acid viscosity is 25-40 mPa.S, and the acid liquor viscosity rises during acid fracturing of the carbonate reservoir. When the hydrogen ion concentration falls till the pH is more than or equal to 2, the acid liquor viscosity rises for forming viscoelastic gel, the permeation resistance of an acid liquor in a high permeation layer is increased, and the length of an acid etching crack is prolonged. Reacted residual acid gel can undergo gel breaking automatically, is free from residues, is easy for discharging, and has small damage to stratums.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1

Transparent acid gel and its preparation method

A hyaluronic acid gel is prepared from hyaluronic acid through pretreating for removing protein, and reacting on glicide ether at 15-35 deg.C for 2-24 hr. It features colorless transparent and long storage time.
Owner:SHANDONG KAILEPU PHARMA

Acidic gel cleaner with improved rinsing from a dried state

The rinsing performance of acidic gel cleaners comprising acid, surfactant and water is improved using a synergistic combination of two polymers consisting essentially of (a) copolymer having a quaternized monomer and (b) microbially-derived polysaccharide. In a preferred embodiment of the invention, the acidic gel cleaner includes (a) a copolymer having at least a diallyldimethylammonium chloride monomer or an acrylamidopropyltrimethylammonium chloride monomer, and (b) xanthan gum. The improved gel cleaners have the unique ability to be easily rinsed from a hard surface even if previously dried into a dry mass on the hard surface.
Owner:DIAL CORPORATION

Preparation method for low-molecular pectin

The invention discloses a preparation method for low-molecular pectin, and aims to provide the preparation method for the low-molecular pectin which is simple in operation, single in molecular weightdistribution, and easy to industrial production. A technical key point of the method is as follows: (1) enabling the pectin to be dissolved in deionized water and forming solution; (2) performing micro-filtration membrane filtration on the pectin solution; (3) adding HCl solution to the pectin solution and forming acid gel, stirring in a rapid speed and breaking the gel, and stirring and washing,adding NaOH solution to dissolve the gel and forming concentrated solution; (4) performing acid hydrolysis on the purified pectin solution, after ending the hydrolysis, decompressing, suction-filtering and removing water, adding alkali solution to dissolve the gel and forming solution; (5) adding pectinase to the hydrolyzed pectin solution and degrading, after ending enzymolysis, decompressing, distilling and removing water from the pectin solution and forming concentrated solution; (6) adding absolute ethyl alcohol to the pectin solution and precipitating; and (7) drying a pectin precipitateunder an ordinary pressure.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI

Acidic soy protein gel foods and process for producing the same

It is intended to provide acidic gel foods containing soy protein to diversify means of taking soy protein in daily eating habits. Using the acid-soluble soy protein as specified in the description, an aqueous solution or an alcohol-containing aqueous solution of the protein is adjusted to pH 3 to 4.5. Then an acid having 2 or more acid groups per molecule or its salt or a salt of another acid or the like is added thereto and the mixture is heated to form a gel. Thus, acidic gel foods involving a jelly-like food favorable as a food can be obtained.
Owner:FUJI OIL CO LTD

Method for removing endotoxin in pectin, and endotoxin-removed pectin

The invention discloses a method for removing endotoxin in pectin. A purpose of the invention is to provide an endotoxin removing method with characteristics of simple operation, high product yield and easy industrial production. The preparation method is characterized by comprising the following steps: (1) dissolving pectin in water to form a solution; (2) carrying out microfiltration separationon the pectin solution to remove solid impurities; (3) adding an acid solution into the pectin solution to adjust the pH value to form an acid gel, stirring to smash the gel, cleaning, carrying out reduced pressure suction filtration to remove moisture, adding an alkaline solution to adjust the pH value, and dissolving the gel to form a concentrated solution; (4) adding absolute ethyl alcohol intothe pectin solution, and precipitating; and (5) drying the pectin precipitate at normal pressure.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI

Composition for repairing cervix and preventing bacterial vaginitis

The invention discloses a composition for repairing the cervix and preventing bacterial vaginitis. The active ingredients of the composition include alpha-glucan oligosaccharide, inulin, silver ion water and lactic acid. A plurality of active ingredients in the composition have a synergistic effect and can achieve a good bacteriostatic effect; the composition is used for nursing and cleaning the female pudenda, correspondingly breeding of harmful pathogenic bacteria in the vagina can be reduced, and a healthy state is maintained. The composition is a weakly acidic gel, the pH value of the composition is close to the pH value of the interior of the vagina, the ecological balance of acids and alkalis in the vagina is maintained, and the composition has no stimulation to the vagina and is safe and free of side effects. In addition, the functional components in the composition can also improve the immunity of the organism and help patients resist the attack of bacterial viruses. It is proved by experiments that the prepared composition has an obvious inhibition effect on bacterial vaginosis.
Owner:杨平芝

Gelled electrolyte of gelled lead acid battery and preparation method thereof

The invention discloses a gelled electrolyte of a gelled lead acid battery.The gelled electrolyte is prepared from, by mass, 28-52% of acid gel, 45-70% of glue and 0.1-3% of anionic polyacrylamide.The acid gel is prepared by mixing and stirring fumed silica and sulfuric acid in proportion; the glue is prepared by mixing and stirring fumed silica and sulfuric acid in proportion.By preparing the acid gel and the glue of the different three-dimensional network structures, the content of silicon dioxide is reasonably controlled, the additive amount of the anionic polyacrylamide is increased, the hydration phenomenon of the obtained gelled electrolyte is effectively relieved, the storage cycle can be prolonged, and the practicability and stability of the gelled electrolyte in the gelled battery are improved.Meanwhile, due to the fact that the acid gel and the glue are prepared respectively and compounded, the raw material cost can be effectively reduced, and the related preparation method is simple and suitable for being applied and popularized.
Owner:盛世骏

Normal-temperature low-acid gel type dairy dessert capable of preventing browning and preparation method of normal-temperature low-acid gel type milk-containing dessert

The invention provides a normal-temperature low-acid gel type dairy dessert capable of preventing browning and a preparation method of the normal-temperature low-acid gel type milk-containing dessert.The normal-temperature low-acid gel type dairy dessert comprises the following raw materials in percentages by weight: 2-50% of dairy raw materials, 0-30% of cream, 5-15% of trehalose, 2-8% of sugaralcohol, 0.5-3% of starch and / or modified starch, 0.3-1.2% of a thickener, 0.05-0.3% of an emulsifier, 0.1-0.3% of an acidity regulator and the balance of water. The invention also provides a preparation method of the gel type dairy dessert. The gel type dessert provided by the invention can meet the requirement of commercial sterility, is not added with a preservative, has a normal-temperature quality guarantee period of 6 months, has no corruption problem, expands the sale channel, and is convenient for consumers to carry and eat. The product meets relevant standards of national standards ofjelly 19299-2015 and processed cheese 25192-2010.
Owner:INNER MONGOLIA YILI INDUSTRIAL GROUP CO LTD

Clean viscous acid for acid fracturing of carbonate reservoir

The invention discloses a clean viscous acid for acid fracturing of a carbonate reservoir, which is applied to the technical fields of acidification and acid fracturing of petroleum carbonate reservoirs. The clean viscous acid consists of the following components in percentage by weight: 3-7 percent of hexadecyl trimethyl ammonium bromide, 0.3-0.7 percent of sodium salicylate, 15-28 percent of hydrochloric acid, 0.125-0.25 percent of citric acid or 0.05-0.1 percent of CX-301 or 0.3-0.5 percent of TW-1 serving as an iron ion stabilizing agent, 0.2-0.25 percent of a diimidazoline quaternary ammonium salt and the balance of water. The clean viscous acid has high retardative property, the retarding rate can reach 42-56 percent, the fresh acid viscosity is 25-40 mPa.S, and the acid liquor viscosity rises during acid fracturing of the carbonate reservoir. When the hydrogen ion concentration falls till the pH is more than or equal to 2, the acid liquor viscosity rises for forming viscoelastic gel, the permeation resistance of an acid liquor in a high permeation layer is increased, and the length of an acid etching crack is prolonged. Reacted residual acid gel can undergo gel breaking automatically, is free from residues, is easy for discharging, and has small damage to stratums.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1

Acid gel fracturing fluid and preparation method thereof

The invention relates to an acid gel fracturing fluid and a preparation method thereof. At present, most of fracturing fluids used in the fracturing reformation of oil and gas fields are fracturing fluids in which guar gum and a derivative of the guar gum are taken as thickening agents and an organic substance or an inorganic substance of boron is taken as a crosslinking agent, the conventional fracturing fluid systems are usually alkaline, and alkaline substances and high-valence metal ions of stratums can form precipitates easily which can damage the stratums. The acid gel fracturing fluid consists of 94.9 to 96.9 weight parts of water, 0.6 to 0.9 weight part of thickening agent CJ2-9, 0.7 to 1.0 weight part of JL-9 crosslinking agent, 1.00 to 2.0 weight parts of surfactant and 0.80 to 1.2 weight parts of ammonium chloride. During fracturing construction, when a prepared solution A is pumped, the solution A and the JL-9 crosslinking agent are mixed in a volume ratio of (100:0.7)-(1000:1.0) to form the fracturing fluid. The acid water-based fracturing fluid in which modified guar gum is taken as a thickening agent has the advantages that: the content of gel breaking residue of the system is low, the amount of a liquid entering the ground is small, the flowback rate of the liquid is high, and the yield increasing retrofit effect is improved.
Owner:西安长庆化工集团有限公司

Detection and analysis method for urine-modified nucleoside based on surface-enhanced resonance raman spectroscopy

ActiveUS20200326285A1Eliminate fluorescent background interferenceEliminate experimental system errorRaman scatteringNuclear magnetic resonanceAcid gel
The present invention discloses a detection and analysis method for urine-modified nucleoside based on a surface-enhanced resonance Raman spectroscopy technology. In the method, a tumor marker modified nucleoside in the urine of a normal person and a cancer patient is extracted through the specificity of borophenylic acid gel; Au colloid is taken as an enhancing substrate to detect SERRS signals; and statistical analysis is conducted by using PLS-DA algorithms to establish a diagnosis and identification model for the SERRS of the urine-modified nucleoside. The model is used to discriminate that the to-be-detected urine-modified nucleoside belongs to the normal person or the cancer patient. After PLS-DA, the surface-enhanced resonance Raman spectroscopy data of the urine-modified nucleoside of the present invention has specificity of 96.9%, sensitivity of 98.2% and accuracy of 97.6%. The present invention has the characteristic of rapid and objective detection, and can provide important reference for doctors to diagnose esophagus cancer.
Owner:FUJIAN NORMAL UNIV

Azelaic acid gel and its preparation method and application

The invention relates to azelaic acid gel and its preparation method and application, belonging to the technical field of skin medicine. The technical problem that the present invention solves is to provide a kind of azelaic acid gel, and this azelaic acid gel is made up of the following components by weight percentage: azelaic acid 10~20%, salicylic acid 0.5~2%, ZEN 1~3%, 1,3‑propylene glycol 60~74%, the rest is water. The invention adopts specific raw materials to prepare the azelaic acid into a gel, the product is transparent and free of precipitation, can penetrate the skin well, can be used in the treatment or prevention of acne, and improves the cure rate of acne patients. Moreover, the composition is simple, antibacterial is still possible without adding preservatives, and the preparation method is simple and the cost is low.
Owner:CHENGDU JOY YOUNG BIOTECH CO LTD

A kind of preparation method of alumina microsphere

The invention belongs to the field of catalyst carriers and specifically relates to a method for preparing alumina microspheres, which includes the following contents: mix an aluminum source with water and grind it to a particle size of D50 ≤ 3 μm, add aluminum sol, continue grinding and acidification to form a colloid; The colloid is dropped into oil to form, heated and solidified, and the solidified particles are taken out for washing, drying, and roasting to obtain alumina balls. Aluminum sol, aluminum source and acid gel are used to prepare the colloid, which is formed and solidified in oil. No nitrogen-containing substances are used in the entire process, which avoids the subsequent generation of nitrogen oxides, reduces the difficulty of exhaust gas treatment, and saves costs.
Owner:REZEL CATALYSTS CORP

A kind of preparation method of fruity acid gel

The invention discloses a preparation method of a fruity acid gel, and especially relates to a production method of a protein emulsion gel. The method consists of: a first step: dispersing casein in distilled water according to a solid-liquid ratio of 0.2-0.4:10, performing hydration for 1-2h, and adding a 0.8% sodium hydroxide solution to conduct regulation so as to obtain a protein dispersion solution; a second step: adding transglutaminase into the protein dispersion solution in terms of 0.8-1g of transglutaminase to per kilogram of protein, with the protein content of casein being 90%, thus obtaining a novel casein dispersion solution; a third step: mixing the casein dispersion solution with watery cream or vegetable oil in a volume of 1:0.10-0.20, and then performing pre-homogenization treatment to obtain a protein crude emulsion; a fourth step: employing a homogenizer to conduct high-pressure homogenization treatment on the protein crude emulsion once to obtain a protein emulsion; a fifth step: juicing fruits, conducting filtering, and then adding the filtrate into the casein emulsion in a volume ratio of 0.1-1:1; and a sixth step: adding glucolactone powder into the casein emulsion, conducting uniform mixing, and then performing standing for 1-3h, thus obtaining a casein emulsion gel product.
Owner:黑龙江卫诺恩生物技术有限公司

A method for manufacturing a quartz glass cylindrical polishing disc based on a gel substrate

The invention relates to a manufacturing method for a quartz glass cylindrical surface polishing disc based on a gel substrate. The method comprises the following specific steps that according to the radius of a quartz glass cylindrical surface needing to be polished, the thickness of the gel substrate is determined, and the size of a mold is determined; (2) a mixed aqueous solution of polyving akohol, sodium alga acid, silicon dioxide and cerium oxide is prepared and poured into the mold, freezing is repeated, unfreezing is circulated for many times, gel is formed, then the generated gel is placed in a cerium oxide polishing solution for steeping, and finally washing is conducted with distilled water; and (3) the gel is laid on the mold, constant-temperature drying is conducted till the weight is constant, and then the quartz glass cylindrical surface polishing disc is obtained. According to the polishing disc based on the polyving akohol and sodium alga acid gel substrate, compared with the prior art, the space net-shaped structure of the gel is utilized to wrap nanoscale cerium oxide particles, a cylindrical surface mold is formed after drying and used for polishing the quartz glass cylindrical surface, the polishing requirements are met, the polishing grinding material is saved, environment pollution is reduced, and cost is reduced.
Owner:TONGJI UNIV

Detection and analysis method for urine-modified nucleoside based on surface-enhanced resonance Raman spectroscopy

The present invention discloses a detection and analysis method for urine-modified nucleoside based on a surface-enhanced resonance Raman spectroscopy technology. In the method, a tumor marker modified nucleoside in the urine of a normal person and a cancer patient is extracted through the specificity of borophenylic acid gel; Au colloid is taken as an enhancing substrate to detect SERRS signals; and statistical analysis is conducted by using PLS-DA algorithms to establish a diagnosis and identification model for the SERRS of the urine-modified nucleoside. The model is used to discriminate that the to-be-detected urine-modified nucleoside belongs to the normal person or the cancer patient. After PLS-DA, the surface-enhanced resonance Raman spectroscopy data of the urine-modified nucleoside of the present invention has specificity of 96.9%, sensitivity of 98.2% and accuracy of 97.6%. The present invention has the characteristic of rapid and objective detection, and can provide important reference for doctors to diagnose esophagus cancer.
Owner:FUJIAN NORMAL UNIV

Method for improving strength of polyamic acid film edge part

ActiveCN111113754AIncrease the degree of imidizationImprove yieldFlat articlesCoatingsPhosphorous acidPolymer science
The invention discloses a method for improving the strength of a polyamic acid film edge part. The method comprises the following steps that slobbering film preparation is carried out on a defoaming polyamide acid resin solution, wherein the step is characterized in that a coating liquid coats a specific area of a support body, and the defoaming polyamide acid resin solution slobbers to the support body to form a film; and the coating liquid comprises, by weight, 70-90 parts of aprotic polar solvent, 10-30 parts of DMP-30, 0.1-1 part of triprimary amine crosslinking agent and 0.5-2 parts of triphenyl phosphite. According to the method, the coating liquid coats the specific area through the coating liquid with a specific proportion, so that the imidization degree of the edge part of the obtained polyamide acid gel film is effectively improved, the mechanical property of the edge part is enhanced, and thus the number of times of edge breaking and film breaking caused by abnormal edge parts in the process of longitudinal stretching, transverse stretching, imidization and the like is effectively reduced, and the yield is improved.
Owner:GUILIN ELECTRICAL EQUIP SCI RES INST

Gel battery comes with acid cycle and acid pumping structure

The invention relates to a lead-acid storage battery, in particular to a colloidal battery with its own acid circulation and acid pumping structure. The acid circulation and acid pumping structure includes a battery tank and a battery cover, the cavity of the battery tank is provided with an electrode group, the battery cover is provided with positive and negative terminals, and the side wall of the battery tank is provided with a tank acid pumping channel. The bottom of the acid pumping channel of the tank is open and communicated with the cavity of the battery tank. The cover wall of the battery cover is provided with a cover acid pumping channel. The acid pumping channel of the tank corresponds to and communicates with the acid pumping channel of the cover. The central part is detachably connected with a circulation plug, and the circulation plug is provided with a plug inlet channel and a plug outlet channel. The plug inlet channel is connected with the cavity of the battery tank, and the plug outlet channel is connected with the cover acid pumping channel. Beneficial effects: the acid circulation and acid extraction inside the battery are realized through the battery tank, the battery cover acid extraction channel, and the circulation plug. The operation is simple and convenient, the acid circulation is more perfect, the acid extraction is more thorough, and it is more conducive to the improvement of product quality.
Owner:CHAOWEI POWER CO LTD

Composition for removing corrosion on surface of aluminum alloy as well as preparation method and application of composition

The invention provides a composition for removing corrosion on the surface of an aluminum alloy as well as a preparation method and application of the composition. The composition comprises the following components in parts by mass: 50-70 parts of acidic gel, 10-20 parts of a strong oxidant, 15-35 parts of inorganic medium-strong acid without reducibility, 0.01-2 parts of a surfactant, 0.01-4 parts of a penetrant and 0.01-4 parts of a corrosion inhibitor. The composition is coated on the surface of the aluminum alloy to be removed, so that the corrosives on the surface of the aluminum alloy can be quickly removed, the operation is simple, and the effect of removing the corrosives is good; strong acid replaces traditional strong acid for dissolution in use, strong acid mist generated when corrosives on the surface of the aluminum alloy are removed can be avoided, and the health of operators cannot be affected. Besides, the aluminum alloy with the surface cleaned up can be obtained after the composition is cured and cleaned after being coated for a period of time, a mechanical method with high strength is not needed for cleaning, and the aluminum alloy composition is suitable for equipment without overhaul and renovation conditions and wide in application range.
Owner:CASIC DEFENSE TECH RES & TEST CENT

The preparation method of sodium hyaluronate gel

The invention relates to a preparation method of sodium hyaluronate gel. The method comprises that a central control unit adjusts the rotational speed of a motor to control the particle size of the pasty gel, and the central control unit controls the rotation angle of a valve to control the volume of the first dialysate. The duration of dialysis, the central control unit receives the detection data of the pH detector and the osmotic pressure detection device in real time, the central control unit controls and receives the data of the first air bubble detection device to adjust the suction speed of the vacuum pump, and the central control unit receives the data of the second air bubble detection device Adjust the speed of the centrifuge, and the central control unit is connected with the bacteria detection sensor; the central control unit can be adjusted according to the actual detection data parameters during the preparation process, so that the preparation process of sodium hyaluronate gel is efficient, and the calculation is based on the second bubble strength. If the strength of the output sodium hyaluronate gel does not match the target strength of the sodium hyaluronate gel, it can be adjusted in real time, thereby changing the strength of the output sodium hyaluronate gel.
Owner:HYAMED BIOTECHNOLOGY (ZHUHAI) CO LTD
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