48 results about "Cetylpyridinium" patented technology

Antimicrobial compositions, especially those useful when applied topically, particularly to mucosal tissues (i.e., mucous membranes), including a cationic antiseptic such as biguanides and bisbiguanides such as chlorhexidine and its various salts including but not limited to the digluconate, diacetate, dimethosulfate, and dilactate salts; polymeric quaternary ammonium compounds such as polyhexamethylenebiguanide; silver and various silver complexes; small molecule quaternary ammonium compounds such as benzalkoium chloride and alkyl substituted derivatives; di-long chain alkyl (C8-C18) quaternary ammonium compounds; cetylpyridinium halides and their derivatives; benzethonium chloride and its alkyl substituted derivatives; and octenidine. The compositions can also include an enhancer component, a surfactant, a hydrophobic component, and/or a hydrophilic component. Such compositions provide effective topical antimicrobial activity and are accordingly useful in the treatment and/or prevention of conditions that are caused, or aggravated by, microorganisms (including viruses).

The invention relates to a bismuth oxyhalide photocatalyst. According to a method for preparing bismuth oxyhalide photocatalyst, sodium bismuthate is used as the bismuth source, and sodium halide or potassium bromate or cetyl trimethyl ammonium chloride or halogenated cetylpyridinium or tetrabutyl ammonium halide is used as the halogen source; the halogen source is added into deionized water and mixed for 20 minutes for dissolution under the ultrasonic condition, and then sodium bismuthate is added into the halogen source for pH adjustment; the mixed solution is put into a reaction kettle for reaction, and the halogen source is marked as follows according to the bromine source: sodium halide (BiOBrNaBr), potassium bromated (BiOBrKBrO3), cetyl trimethyl ammonium chloride (BiOBrCTAB), halogenated cetylpyridinium (BiOBrCPB) and tetrabutyl ammonium halide (BiOBrTBB). The bismuth oxyhalide photocalyst is applied to visible light sensitization or degradation of rhodamine B (RhB) and salicylic acid (SA); the bismuth oxyhalide photocalyst has good stability and photocatalytic activity, and meanwhile, the preparation process is simple and the cost is low.

The invention discloses tin plating electrolyte. The tin plating electrolyte comprises the following components 60 to 90g/L of tin methane sulfonate, 10 to 30g/L of tin sulfate, 110 to 140mg/L of p-cresolsulphonic acid, 60 to 120mg/L of sulfosalicylic acid, 30 to 50g/L of phosphinic acid, 45 to 70mg/L of 2,2-PySSPy, 15 to 25mg/L of 8-hydroxyquinoline, 20 to 30mg/L of catechins, 10 to 15g/L of 2,2-dihydroxy diethyl sulfide, 5 to 10mg/L of hexadecylpyridinium bromide, 8 to 12 g/L of dodecyl-phenol polyoxyethylene ether, 5 to 10g/L of ethylene glycol, 4 to 8g/L of benzalacetophenone, 5 to 10g/L of sodium hexametaphosphate, 4 to 8g/L of sodium dodecyl sulfate, and the balance of deionized water. According to the tin plating electrolyte, Sn2<+> can be effectively restrained to convert into Sn4 <+> in an electrolytic process by improving an electrolyte formula, and the stability of plating solution is improved; and meanwhile, the throwing power of the electrolyte is increased, and the luminance, the corrosion resistance and the welding performance of tin coatings are improved.

A chew product useful to reduce dental calculus and gingivitis in the oral cavity of animals contains a combination of sodium tripolyphosphate and a cetyl pyridinium salt. Also disclosed are methods for preparing the novel chew product and for using the chew product to promote oral health in animals.

Relating to the technical field of nitrogen-containing sewage treatment, the invention provides a carbon nanotube/hydrotalcite material for removal of nitrate nitrogen from water and a preparation method. The method includes: conducting in-situ generation of a lanthanum-doped hydrotalcite layer on the pipe wall of a multiwalled carbon nanotube by coprecipitation, and employing a cationic surfactant cetylpyridine bromide for surface modification of the hydrotalcite layer, thus obtaining the carbon nanotube/hydrotalcite material for removal of nitrate nitrogen from water. According to the preparation method provided by the invention, hydrotalcite is loaded on the pipe wall of the multiwalled carbon nanotube, thus increasing the specific surface area of hydrotalcite and exposing more active sites, and rare earth metal lanthanum is also employed for doping, lanthanum undergoes complexing with NO3<-> to form a stable polyamine complex. Further, cetylpyridine bromide is employed for surfacemodification, thus reducing the electronegativity of the hydrotalcite surface, and providing more active sites for adsorption of NO3<->. Therefore, the carbon nanotube/hydrotalcite material has a goodremoval effect on nitrate nitrogen in water.

The invention discloses a scale remover for a water injection well, and a preparation method and an application of the scale remover, and belongs to the field of oil field development. The scale remover comprises the following components, by mass, 25-40% of a scale-dissolving agent, 3-6% of a dispersant, 3-6% of a corrosion inhibitor, 3-6% of a cleanup additive, and 1-3% of a suspending agent, with the balance being water. The scale-dissolving agent is a hydrochloric acid solution having a concentration of 25-37%; the dispersant is selected from at least one of carboxymethyl cellulose, sodium dodecyl sulfate, and 1-methylpentanol; the corrosion inhibitor is chloridized benzylquinoline quaternary ammonium salt; the cleanup additive is selected from at least one of dodecylpyridinium bromide, hexadecylpyridinium bromide, and octadecylpyridinium bromide; and the suspending agent is lignin. The scale remover can deeply remove scale, has a corrosion inhibition function, is easy to flow back, and doesn't cause secondary pollution on the stratum.

Complex compounds containing acesulfame have good antimicrobial action, in particular antibacterial action, and are distinguished by the fact that they are complex compounds of metallic elements such as zinc, copper, silver, or nonmetallic quaternary ammonium cations, such as the cetylpyridinium cation, with acesulfame. The invention also relates to a process for preparing the compounds and their use in the oral hygiene sector.

The invention provides a wet crock fastness improver and a preparation method thereof. The preparation method comprises the following steps of: firstly, mixing epoxy soybean oil and castor oil, performing vacuum drying, mixing with isophorone diisocyanate, hexadecyl pyridine bromide, alkyl dimethyl ammonium chloride, adding into a four-neck bottle, stirring, at the same time adding di-butyl tin dilaurate and dibutyl tin diacetate, performing heating reaction, further adding sorbitol, trimethylolpropane and N,N-dimethyl formamide, keeping the temperature, continuously stirring to react, cooling, adding triethylamine and acetone to react continuously, transferring the reaction liquid into a flask, slowly pouring into a solution of sodium bisulfate and distilled water, shearing by using a shearing and dispersion machine, adding polyvinyl alcohol, continuously stirring, and removing acetone in vacuum, thereby obtaining the wet crock fastness improver. The wet crock fastness improver provided by the invention is good in color fixing effect, high in dry crock fastness, generally identical in wet crock fastness and dry crock fastness, free of color change in rinsing, free of color staining, and also relatively high in rinsing color fastness.

The invention relates to a denitration agent for coal-fired flue gas denitration and a preparation method thereof, and belongs to the technical field of environmental protection. The preparation method of the denitration agent comprises the following steps: dissolving cetylpyridinium chloride in water; adding denitration agent carrier metal nitrate into the solution; stirring to obtain a mixed solution of the carrier metal, with the denitration agent carrier metal component being Mg, La and Ce; slowly adding an alkali solution into the mixed solution in S1 under stirring to adjust the pH value to 10-12; after addition, stirring at room temperature for 10-16 hours, so that metal ions in the solution form hydroxide mixed precipitate; performing low-temperature drying on the mixed precipitate in S2, and then transferring the dried mixed precipitate into a kiln for high-temperature roasting to obtain a composite metal carrier; after butyl titanate is dissolved in ethyl alcohol, adding a composite metal carrier into the solution to conduct impregnation adsorption on titanium to obtain a carrier containing titanium after impregnation is completed; and carrying out low-temperature drying on the titanium-containing carrier, and then transferring into a furnace kiln for high-temperature roasting. The denitration agent has good low-temperature activity and long service lifetime.

The invention discloses a protein extraction and electrophoresis method facilitating efficient analysis of a protein map on expression quantity differential protein, and belongs to the field of protein map engineering. Protein of aspergillus niger can be efficiently extracted and protein spots can be fully separated with the protection extraction and electrophoresis method. Aspergillus niger is broken by low-temperature wall-breaking liquid for protein extraction, and the formula of the low-temperature wall-breaking liquid is as follows: 20g of absolute ethyl alcohol, 5g of trichloroacetic acid, 5g of acetic acid, 0.02g of cetylpyridinium, 0.03g of lauryl sodium sulfate and distilled water with a constant volume of 1L. The wall-breaking liquid can increase the extraction ratio of protein. The electrophoresis method is three-dimensional electrophoresis which contributes to protein extraction of aspergillus niger and differentiation of protein expressions.

The invention relates to a preparation method of a tungstenic heteropolyacid catalyst. The method comprises the following steps that (1) an appropriate amount of tungstic acid and an oxidant are contacted, heated and stirred until a solution is colourless; filtering is conducted; the solution is cooled to a room temperature for use; (2) phosphoric acid is weighed, diluted and then added to reaction liquid; a system is diluted by water; stirring is conducted for reaction; (3) hexadecylpyridinium chloride is dissolved in methylene chloride and dropwise added to a final solution obtained in Step (2); stirring is continued for reaction; and (4) the solution stands; an organic phase is separated; methylene chloride is distilled off in a water bath at 50-60 DEG C; and a light-yellow solid catalyst is obtained. The preparation method has a creative improvement based on the original preparation method, so that the yield is increased, the cost is lowered, the flow is simplified, and industrial production is easy to realize.

The invention relates to black water-based ink for silk-screen printing, belonging to the technical field of silk-screen printing. The water-based ink is prepared from the following raw materials in parts by weight: 22-40 parts of carbon black, 2-10 parts of anionic surfactant, 4-10 parts of latex, 3-12 parts of acrylic resin, 1-5 parts of ammonium hydroxide, 10-18 parts of isopropanol, 3-9 parts of cetylpyridinium bromide, 2-9 parts of dispersant, 3-8 parts of defoaming agent and 50-70 parts of deionized water. The black water-based ink disclosed by the invention can solve the problems that a formula in the prior art is not suitable for preparing the black water-based ink, can enable the drying speed of a black pigment to be too fast and be incapable of well fixing the black pigment on a printed matter, is not conductive to printing and can even cause failure of equipment; and by using the combination of an alkali-soluble connecting material and a diffusible connecting material and selecting an appropriate color fixing agent for matching, the drying speed of the pigment is appropriate, the color fastness is improved, and the black water-based ink is further conductive to final printing effects.

The invention discloses a multifunctional traditional Chinese medicine antibacterial sanitary wet tissue and a preparation method thereof, and belongs to the technical field of wet tissues. The multifunctional traditional Chinese medicine antibacterial sanitary wet tissue comprises a base material and antibacterial liquid, and the antibacterial liquid is prepared from the following raw materials:a herba taraxaci extracting solution, a flos lonicerae extracting solution, a folium isatidis extracting solution, an aloe extracting solution, didecyldimethylammonium chloride, chlorphenesin, hexadecylpyridinium, glycerinum, propylene glycol, benzalkonium chloride, C12-14-alkyl dimethyl ethyl benzyl, citric acid, ethanol and deionized water. The multifunctional traditional Chinese medicine antibacterial sanitary wet tissue is novel in process, has the characteristics of broad spectrum, high efficiency, safety, environmental protection and no irritation to skin mucosa, and can quickly kill various bacteria, fungi, spores and viruses.

The invention discloses a plumeria rubra 'Acutifolia' polysaccharide bacteriostatic hand sanitizer, and the hand sanitizer is prepared from the following raw materials in parts by weight: 3-30 parts of plumeria rubra 'Acutifolia' polysaccharide, 1-3 parts of alkyl polyglucoside, 1-5 parts of betaine, 1.5-5 parts of coconut oil, 2-6 parts of food-grade glycerol, 0.1-0.5 part of starch and 1-3 parts of citric acid, with the balance being deionized water. According to the invention, the plumeria rubra'Acutifolia' polysaccharide with a good bacteriostatic effect is used for replacing a bacteriostatic agent in a traditional hand sanitizer, and natural surfactants, including the betaine and the alkyl polyglucoside, are used for replacing surfactants, such as cetylpyridinium chloride and sodium dodecyl sulfate, in the traditional hand sanitizer, so that a novel hand sanitizer is prepared. The product can not only clean hands efficiently, but also play a bacteriostatic role, meanwhile, the plant polysaccharide is very good in moisturizing effect and anti-oxidation function, so that the product is small in irritation to skin, capable of playing a role in protecting and moistening skin and green and environment-friendly.

The invention provides a method for preparing chondroitin sulfate from tilapia mossambica skull. The method comprises the following steps: performing enzymolysis on tilapia mossambica skull powder by adopting Savinase 16L to obtain Savinase 16L enzymatic hydrolysate; carrying out secondary enzymolysis on the Savinase 16L enzymatic hydrolysate by using 2709 alkaline protease; and separating and purifying with ethanol and cetylpyridinium chloride to obtain the chondroitin sulfate. According to the method, a composite enzymolysis method of Savinase 16L and 2709 alkaline protease is adopted, efficient extraction of chondroitin sulfate from the tilapia mossambica skull powder is effectively achieved, purification of chondroitin sulfate is further achieved through ethyl alcohol and cetylpyridinium chloride, and high-value utilization of tilapia mossambica by-products is achieved.

The invention relates to the technical field of hydrometallurgy, and provides a method for synergistically strengthening sulfuric acid leaching of chalcopyrite, which comprises the following steps: S1, crushing and grinding chalcopyrite ore blocks to obtain a leached ore sample; s2, a 0-9 g/L Fe < 2 + > solution is added into the leached ore sample, then 0.1-1 mol/L NH4Cl and 10-120 mg/L cetylpyridinium bromide (a pyridine heterocyclic quaternary ammonium salt type cationic surfactant) are added, and the initial pH of a leaching solution is adjusted to be 1.5-3.5 with dilute sulphuric acid; and S3, under the conditions of a certain temperature and a certain rotating speed, the leachate is placed in an oscillator to be oscillated and leached for 10-15 days. By adding NH4Cl and cetylpyridinium bromide, the leaching amount of the copper ions in the chalcopyrite is increased by 0.63-2.75 times, the leaching rate of the chalcopyrite can be remarkably increased, and the method has important significance on development and utilization of low-grade chalcopyrite resources.

The invention belongs to the technical field of composite boards, and particularly relates to an antibacterial composite board and a preparation method thereof. The antibacterial board is composed of a core layer, a surface layer and an antibacterial coating, wherein the core layer is composed of chopped basalt fibers, plant fiber powder, glass fibers, nano cellulose and polytetrafluoroethylene short fibers; the antibacterial coating is prepared from carboxymethyl chitosan, nano silver-loaded zirconium silicate, diethylene glycol butyl ether, allyl isothiocyanate, N-substituted alkyl isoquinoline quaternary ammonium salt, sodium fluoride, citral, cetylpyridinium chloride, tributyl citrate, tributyl phosphate, 1-hydroxyethylidene-1,1-diphosphonic acid and dimethyl methylphosphonate. According to the antibacterial composite board disclosed by the invention, the core layer is treated by adopting the antibacterial liquid, so that the core layer has good antibacterial, bactericidal and corrosion-resistant properties, and the antibacterial coating is arranged outside the skin layer, so that the overall antibacterial, bactericidal and corrosion-resistant functions of the board are ensured, the service lifetime of the board is prolonged, and the board has antibacterial durability.

The invention provides a preparation method of an organic-inorganic montmorillonite composite antibacterial material, which comprises the following steps: mixing montmorillonite concentrate with water and an acidic solution, and activating to obtain acid-leached montmorillonite; mixing the acid-leached montmorillonite with water to obtain a montmorillonite dispersion liquid; and mixing the montmorillonite dispersion liquid with cetylpyridine and copper chloride, and carrying out loading to obtain the organic-inorganic montmorillonite composite antibacterial material. According to the invention, the acid-leached montmorillonite is taken as a carrier, and the structure and layer charge of the montmorillonite are changed through acid leaching treatment, so that the antibacterial property of the material is effectively improved; the acid-leached montmorillonite is mixed with water, so that the acid-leached montmorillonite can be uniformly dispersed in a solution, and the subsequent loading of an organic antibacterial agent cetylpyridine and an inorganic antibacterial agent copper chloride is facilitated, so that the broad-spectrum performance of the antibacterial material is realized, and the antibacterial material can simultaneously show good resistance to gram-positive bacteria and gram-negative bacteria.