61 results about "Acid inhibitor" patented technology

A corrosion control system is disclosed including an anionic oxygen inhibitor, a cationic acid inhibitor or dispersant, and a noxious species inhibitor or scavenger for use in a fluid in contact with a metallic surface at low temperature, moderate temperature and especially at high temperature. A drilling fluid, a completion fluid, a production fluid and a geothermal fluid including an effective amount of the corrosion control system is also disclosed as well as methods for making and using same.

The present disclosure provides enteric coated capsules and orally dissolving films comprising non-steroidal anti-inflammatory drugs and acid inhibitors, as well as methods of treating treatment humans for pain and/or inflammation while reducing gastrointestinal side effects.

The invention relates to a stratum opener agent which is applied to oilfield low permeability reservoir. The stratum opener agent comprises two parts: pre-disposal liquid and acid inhibitor system; according to the weight percentage, the pre-disposal liquid consists of solvent and surfactant as follows: 1-3% of organic solvent such as higher alcohol, 0.2-1% of non-ionized surfactant polyoxyethylene alkylolamide, 0.3-0.5% of tenthfive alkyl sulfonate, and the residual quantity of stratum water; according to the weight percentage, the acid inhibitor system comprises 5-10% of low-carbon organic acid, 1-3% of hydrofluoric acid, 0.5% of inhibitor thio-phosphate imidazoline polyoxyethylene ether, 1% of adsorption inhibitor and the residual quantity of water; the adsorption inhibitor comprises 0.5-2% of ethyl dimethylene-bi-cetyltrimethylammonium ammonium bromide, 0.2-1% of quaternary ammonium salt small kation, 2-5% of inorganic salt, 0.2% of 1,3-amine group propyl alcohol N-methyl sodium phosphate or potassium dihydrogen phosphate or sodium hexametaphosphate. The opener agent can effectively improve the seepage capability of reservoir and achieve the objects of decompression and augmented injection and improving the yielding.

A novel anion exchange polymer is provided. A method of making the anion exchange polymer includes reacting a tertiary amine, an acid inhibitor and a polyepoxide to form a quaternary ammonium monomer and polymerizing the quaternary ammonium monomer in the presence of a catalyst. The exchange polymer is prepared without using alkyl halides and can be used to make improved ion exchange materials that are chemically resistant and non-fouling.

Aqueous concentrates of non-toxic corrosion inhibitors, preferably storage-stable, useful in acidic cleaning solutions for cleaning the surfaces of metal that contacts food or potable water, the concentrates comprising at least one polymer, which may be protein-derived or synthetic; at least one iodine ion providing compound; an acidifier; and optionally, at least one anionic, nonionic or amphoteric surfactant; at least one coupling agent; and a pH adjuster; the concentrates being substantially free of nonylphenol derivatives and compounds containing elemental iodine and providing an improved acid inhibition and less foaming than similar compositions comprising nonylphenol derivatives and elemental iodine when mixed with aqueous acidic cleaners; acidic solutions prepared therefrom; and methods of their use.

The present disclosure provides oral dosage forms comprising an antiplatelet agent and an enterically coated acid inhibitor, as well as methods of treating subjects with an antiplatelet agent and an enterically coated acid inhibitor.

The invention provides a preparation method of a nano titanium dioxide compound. The method comprises the steps of adding butyl titanate dropwise into an alcohol dispersing agent under the condition of vigorous stirring to obtain a light yellow transparent solution A; mixing an acid inhibitor, water and the alcohol dispersing agent to obtain a solution B; then dropping B into A under the condition of vigorous stirring to obtain titanium dioxide sol; loading the titanium dioxide sol on a carrier by a spray coating method or a dip-coating method and performing natural drying; and placing a dried film into a muffle furnace at the temperature in a range between 250 DEG C and 650 DEG C and performing calcinations for 0.5-3h under the condition of air atmosphere to obtain a nano titanium dioxide film. According to the method, the prepared titanium dioxide material has a small grain size, a large specific surface area and high catalytic oxidation activity, and also can be used as a catalytic material or a sterilization material, and the nano titanium dioxide film also has a self-cleaning function.

The invention discloses a method for preparing a SiAl coating by sintering slurry. The method comprises three processing steps: a processing step (1) of preparing SiAl slurry; a processing step (2) of spraying the slurry; and a processing step (3) of sintering treatment; the preparation of the SiAl slurry has the requirement that the components of the slurry are mixed according to the proportion of 80g-120g of permeated source powder to 100 ml of adhesive, wherein the permeated source powder adopts pure Al powder and Si powder, and the content of the Si powder is not more than 15wt%; the adhesive of the SiAl slurry is formed by mixing the following components: phosphate aqueous solution served as a solvent, CrO3 served as an acid inhibitor and MgO served as a curing agent. The SiAl coating prepared by the invention has good high-temperature corrosion resistance performance; and the process is simplified by a large margin, has low production cost and is remarkably superior to the prior art.

The present invention relates to an anesthetic composition containing a fluoroether compound and a physiologically acceptable Lewis acid inhibitor. This composition exhibits improved stability and does not readily degrade in the presence of a Lewis acid.

The invention provides a metal cleaner. The metal cleaner comprises the following components in parts by weight: 0.5-1 part of ultra-low interfacial tension surfactant, 0.5-1 part of acid cleaner, 0.1-0.5 part of acid inhibitor, 0.01-0.05 part of bactericide, 0.01-0.05 part of pH conditioner, 3-10 parts of organic solvent, and 80-150 parts of water. The metal cleaner can be used for cleaning a metal part. The metal cleaner is good in cleaning effect, free of residue, free of corrosion on metal and stable in property.

Belonging to the field of high polymer material application, the invention relates to a recycling method for a waste PPS dedusting filter bag. The recycling method for the waste PPS dedusting filter bag includes finishing, drying, cutting and opening, wherein the method also includes a surface modification treatment process. Further, the surface modification treatment comprises: firstly smashing dust bearing fiber obtained by opening into short fiber, then mixing the obtained short fiber with an organization modification agent, an antioxidant and an acid inhibitor uniformly, and conducting discharge, thus obtaining surface modified pellets. According to the invention, the PPS fiber that is obtained by a series of treatment and contains a small amount of micro-dust is subjected to surface modification treatment so as to make the dust in the fiber have similar surface properties to the PPS fiber and improve rheological properties. The obtained surface modified pellets have good mechanical properties and processability, so that the waste PPS dedusting filter bag can be applied effectively.

The invention provides a beneficiation method for producing phosphate concentrate powder by using low-grade phosphate rock. 1. Crushing the phosphate rock to less than 20mm; 2. Sending the crushed phosphate rock into the storage bin of the rotary kiln head , sent to the rotary kiln through the feeding pipe of the storage bin for a return calcination, the calcination temperature is 1200-1300 ℃; 3. After the calcined phosphate rock is quenched by the kiln tail water pool, it is transported into the ball mill and ground into 200 mesh Slurry; 4. Send the slurry into the roughing tank, add 1% to 1.1% mixed acid inhibitor and 0.16 to 0.21% auxiliary collector during the stirring process of the mixer, and the sediment below is the phosphorous concentrate pink. The present invention makes full use of low-grade phosphate rock through the above-mentioned scientific and simple flotation method to obtain high-grade high-quality phosphate concentrate powder, which can meet the processing requirements of electrothermal phosphorus production and wet process phosphoric acid, and has the advantages of fully utilizing resources and reducing comprehensive characteristics of cost.

The present disclosure is directed to a method for treating a disease or disorder in a patient at risk of developing an NSAID-associated ulcer by administering to the patient in need thereof a pharmaceutical composition in unit dosage form comprising aspirin, or a pharmaceutically acceptable salt thereof, and an acid inhibitor to the at risk patient and thereby decreasing the patient's risk of developing an ulcer.

The invention provides an acid inhibitor, which includes dormison, triethanolamine, phosphoric acid, antimony oxide, the synergistic agent and the soluble solvent. The inhibitor has improved the effect and decreased the cost; it can be used to the all kinds of the acid and major in the oil well acidification.

The invention relates to an acid inhibitor of copper containing dithiocarbamic acid group, and a preparation method thereof. First, 5 percent sodium hydroxide solution is added into a three-neck flask comprising a thermometer, a reflex condensing pipe and an electric stirrer; next, triethylene tetramine is added in; and then carbon bisulfide is added into an ice bath drop by drop. The materials react for 2h in the ice bath; and then the ice bath is removed, so that the temperature gradually rises to 30 DEG C; the materials continue to react for 3h; the materials are washed by ethanol and methanol, suctioned and filtered under vacuum condition, dried at 55 DEG C under vacuum condition, and finally a light yellow product triethylene tetramine-based dithiocarbamic sodium formate. The acid inhibitor of copper is a linear compound, easy to be biodegraded, has no toxin, and has very good inhibiting function to copper in acid medium.

The invention belongs to the technical field of high-molecular polymers and provides an acid diffusion inhibitor having ester bonds, (methyl)acrylate is used as a structural unit, the polymer resin formed by introducing an ester bond-containing basic group avoids the problems of poor film-forming ability, brittle rupture, peeling and the like of a photoresist film caused by mismatching of intersolubility between a macromolecular resin compound and a micromolecular acid inhibitor in the photoresist, and can control photoacid diffusion in a non-exposure area, meanwhile, the dissolvability and distribution of the resin in the photoresist can be more effectively improved, the resolution ratio and line width roughness of the photoresist are improved, and the film-forming ability of the photoresist is improved. The invention also provides a preparation method of the acid diffusion inhibitor with the ester bonds and a photoresist composition thereof. When the acid diffusion inhibitor providedby the invention is applied to a photoresist composition, the acid diffusion inhibitor has the characteristics of fixed distribution, high acid diffusion inhibition capability, property matching withacid active resin and good film-forming capability.

The invention provides a tarragon soup effervescent tablet and its preparation method. According to the invention, traditional Chinese medicinal prescriptions are developed by a modern preparation technology and a decoction of the tarragon soup is prepared into the effervescent tablet. The weight of the prepared tarragon soup effervescent tablet is 1g; the hardness is 5.5-6kg; the disintegration time is 180-190s; after disintegration, the solution is clear with no sediment residue, pH is 5.0-5.5 and the foam volume is 8-9 mL. The prepared effervescent tablet conforms to pharmacopoeia provisions. By a method of wrapping an alkaline agent with the use of polyethylene glycol, the alkaline agent is effectively isolated from an acid inhibitor, and the problem of poor stability of the effervescent tablet is solved. In addition, the preparation technology is simple; the prepared effervescent tablet is not easy to absorb moisture, has a non-deformable appearance and a good taste, and is rapidto dissolve and convenient to store, transport and carry.

The invention discloses an ice-crystal-free cryopreservation solution for cartilage, tendon and meniscus preservation and a freezing method thereof. The cryopreservation solution is prepared from 1.0to 6.0 mol/L of ethylene glycol; 1.0 to 7.0 mol/L of propylene glycol, 0.1 to 2.5 mol/L of hydroxyethyl piperazine ethanesulfonic acid, 10 to 50 [mu] mol/L of a Caspase inhibitor Z-VAD-FMK, 2 to 10 mg/L of a matrix metalloproteinase inhibitor GM6001 and a component X. The cryopreservation solution disclosed by the invention can effectively increase the number of living cells and the cell viabilityin cartilage, tendon and meniscus tissues after cryopreservation, and more importantly, the solution can prevent ice crystals from growing again during cryopreservation recovery and during storage, so as to prevent vitrification. According to the novel ice-crystal-free cryopreservation solution, cartilages, tendons and meniscus can be preserved for a longer time and permanently preserved in an environment with the temperature lower than -130 DEG C.