31 results about "Acid inhibition" patented technology

The invention belongs to the technical field of metal surface cleaning treatment, and more particularly relates to an environmental-protection type multifunctional efficient acid washing acid inhibition corrosion inhibitor, which is formed by mainly compounding 2-6 parts of a surfactant, 8-15 parts of a corrosion inhibitor, 0.5-1 part of a penetrating agent, 2-4 parts of an acid washing accelerating agent, 74-87.5 parts of water, and other components, wherein the product achieves the optimal mist inhibition corrosion inhibition effect in the acid washing through the synergy effect of various components. The corrosion inhibitor of the present invention has the following beneficial effects that: (1) the rust removing is fast, the rust removing speed is significantly increased with the additions of the penetrating agent and the accelerating agent, and the rust can be completely removed within 5-30 min when the addition amount is 2%; (2) the mist inhibition property is good, and the good mist inhibition effects are provided for hydrofluoric acid, nitric acid, and the like; and (3) the corrosion inhibition is good .

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 invention provides a method for producing marsh gas by two-phase dry-type mixed anaerobic fermentation, belonging to the technical field of renewable energy sources. The method mainly comprises the following steps: ethanol prefermentation: inoculating a certain amount of dried yeast into kitchen waste to carry out ethanol prefermentation; and methane fermentation: mixing the kitchen waste subjected to ethanol prefermentation and vinasse in a ratio of 1:1 (on the basis of VS) as a substrate for subsequent anaerobic fermentation, and inoculating long-term acclimatized sludge in a ratio of 1:1 (sludge:substrate (on the basis of VS)). The method searches the possibility of optimizing methane anaerobic fermentation by ethanol prefermentation, and optimizes the experimental conditions for ethanol prefermentation. The method can effectively relieve the problem of volatile acid inhibition in the anaerobic digestion process, and obviously enhances the methane yield, thereby enhancing the energy recovery rate. The method is simple to operate, and thus, has high practical value.

Aqueous corrosion inhibitor compositions, preferably storage-stable, useful in acidic cleaning solutions for cleaning the surfaces of metal, comprising reaction products of at least one rosin amine component, at least one non-flammable liquid ketone component, at least one carboxylic acid component, at least one paraformaldehyde component and water; aqueous acidic cleaners prepared therefrom; and methods of their use. The inventive corrosion inhibitor compositions are made by a simple process which reduces the presence of toxic and/or flammable raw materials, co-products, residual reactants and chloride ion while providing acid inhibition in aqueous acidic cleaners.

The invention relates to a drier which comprises 5 to 50 percent of nonionic surfactant which is poly-oxypropylene polyoxyethylene block type polyether; 0.1 to 5 percent of one or a plurality of organic polyprotic acid inhibition antisludging agents; 5 to 25 percent of solubilizer; 2 to 10 percent of anion surface surfactant and dispersant, and the rest of deionized water. The drier can cause the drier to be dispersed fully in the final rinsing water of a dishwasher with no lumping precipitation and not to be precipitated easily in high temperature environment, can reduce effective component loss, make full use of effective component and reduce device pollution.

The invention relates to a gastric antiacid, and concretely relates to a hydrotalcite tablet and its preparation method. The hydrotalcite tablet comprises 33.3-71.4wt% of micronized hydrotalcite, 0.5-5wt% of a weakly-acidic pH adjustment agent, 0.5-2wt% of sodium dodecyl sulfate, 3-8wt% of a low-substituted hydroxypropylcellulose or a crosslinked carboxymethylcellulose sodium, 1-2.2wt% of polyvinylpyrrolidone or hydroxypropyl methylcellulose, 0.5-1.5wt% of a lubricant, 0.2-0.5wt% of menthol, and the balance a filler and other pharmaceutically acceptable assistants. The invention correspondingly provides the preparation method of the hydrotalcite tablet. The hydrotalcite tablet provided by the invention has the advantages of fast collapse and long acid inhibition maintenance time.

The invention provides a novel multilayer coating system enteric preparation for dexlansoprazole. The preparation comprises a drug layer I, a drug layer II, enteric coating layers IV and isolating layers III, wherein the isolating layers III are arranged among the drug layer I or II and the enteric coating layers IV, the drug layer I and the drug layer II are respectively composed of dexlansoprazole, a filler, a binder, a stabilizing agent and a lubricant, and the preparation comprises, from interior to exterior, the drug layer I, the isolating layer III-1, the enteric coating layer IV-1, the isolating layer III-2, the drug layer II, the isolating layer III-3 and the enteric coating layer IV-2. The novel multilayer coating system enteric preparation for dexlansoprazole provided by the invention can improve the acid inhibition effect of dexlansoprazole and prolongs action time of dexlansoprazole, the isolation effect of the isolating layers in the whole preparation system is optimized, and stability of product quality is ensured; and a preparation method provided by the invention is applicable to industrial production and has a great application value.

The invention discloses a method for producing lactic acid and simultaneously realizing coupling preparation of GABA (gamma-aminobutyric acid). The method comprises the steps of inoculating rhizopus oryzae into a fermentation culture medium to perform fermentation, adding glutamic acid decarboxylase, pyridoxal phosphate and L-sodium glutamate into a fermentation solution when the pH value of the fermentation solution is less than 4.8, then continuously adding L-sodium glutamate into the fermentation solution, and generating GABA of glutamic acid decarboxylase by utilizing the vitality of catalyzing glutamic acid to consume H+ in an environment so as to maintain the pH value of the fermentation solution at 4.8-6.0 and achieve the purposes of relieving acid inhibition against fermentation of lactic acid and realizing simultaneous production of lactic acid and GABA. The invention provides a new method for relieving the inhibition of a substrate for fermentation of lactic acid; furthermore, in the fermentation process, the coupling production of a functional compound, namely gamma-aminobutyric acid, is realized, so that the yield of lactic acid is increased, and the economy of the process is further improved.

The invention discloses a culture medium for screening nitrogen sources suitable for bifidobacterium proliferation, and belongs to the technical field of fermentation engineering. Culture mediums of different nitrogen sources can be prepared and obtained by using the culture medium formula of the invention, in the culture mediums of different nitrogen sources, the pH value of the fermentation liquid is not less than 4.5 when the bacterial concentration of bifidobacterium adolescentis Z25 and bifidobacterium bifidum F35 is the highest, and the glucose content is not less than 2.0g/L. Moreover,the osmotic pressure of the culture medium is 300-400 mOsm/kg, indicating that the growth of bacteria is stopped because the effective nitrogen source is completely utilized, not because of lack of carbon source or acid or osmotic pressure inhibition. Therefore, the growth rate of bacterial strains using different nitrogen sources and the increment of strains using different nitrogen sources per unit mass can be clearly judged. The problems of traditional batch culture acid inhibition, substrate deficiency inhibition or osmotic pressure inhibition, and osmotic pressure inhibition of nitrogen source screened by sugar supplementation culture at constant pH in fermentation tank can not accurately analyze the screening of effective nitrogen sources are solved.

The invention discloses mycelium extract for a helicobacter pylori-resistant biological medicine and a preparation technology thereof. Hericium erinaceus culture is subjected to reflux-extraction by ethanol having a volume concentration of 40 to 80%; extracting solution is subjected to rotary evaporation at a temperature of 30 to 80 DEG C; and the evaporation products are added with water and precipitates are separated out. The mycelium extract breaks the principle that the prior art mainly utilizes common antibiotics such as amoxicillin, gentamycin, clarithromycin and amoxicillin and an auxiliary acid-inhibition agent (such as a bismuth agent) to treat helicobacter pylori-caused infection, and has obvious treatment effects and small side-effect.

The invention belongs to the technical field of measurement of tin elements in metals, and particularly relates to a method for measuring the content of tin in crude lead. The method comprises the steps of: firstly, dissolving metal lead with nitric acid and potassium sodium tartrate, adding hydrochloric acid to inhibit tin hydrolysis, after a white precipitate disappears, taking off the lead forcooling, performing filtering by using medium-speed quantitative filter paper, ashing residues together with the filter paper in a muffle furnace, melting the ash with sodium peroxide, leaching in hotwater, performing acidification, merging the solution with the filtrate, and measuring the tin in ICP. According to the method, the applicability of the sample is fully considered, the experimental process is greatly simplified, the analysis efficiency is improved, and the detection range of the experiment is expanded; at the same time, the disadvantages of simultaneous addition of nitric acid and hydrochloric acid in other methods are fully considered, the method of firstly adding the nitric acid and the potassium sodium tartrate to dissolve the metal lead, and then adding the hydrochloric acid to inhibit tin hydrolysis is invented, this change effectively solves the problem of the formation of a dense oxide film on the metal lead in an aqua regia system, meanwhile, a step of correctinginsoluble residues is increased to further improve the accuracy of the experiment.

The invention discloses a method for recovering methane production performance of an anaerobic fermentation acid inhibition system by utilizing photosynthetic bacteria, which comprises the following steps: taking the photosynthetic bacteria as a bacteria source, carrying out expanded culture and centrifugal treatment to obtain photosynthetic bacteria thalli, putting the photosynthetic bacteria thalli into an anaerobic fermentation reactor, and carrying out auxiliary illumination, and judging and recovering the normal gas production and methane production capability of the anaerobic fermentation acid inhibition system by detecting the change of indexes. According to the method, acid inhibition can be relieved within 12 days, normal fermentation performance can be recovered, the microbial community structure in the system cannot be greatly influenced, and the original microbial function in the system can be kept.

The invention discloses a traditional Chinese medicine for treating peptic gastric ulcer. The traditional Chinese medicine comprises, by weight, 4-6 parts of Chinese angelica root, 2-3 parts of Fructus Gardeniae, 5-8 parts of Radix Puerariae, 0.6-0.8 parts of inulin, 4-6 parts of Radix Astragali, 3-5 parts of Rubia cordifolia, 0.5-0.7 parts of Fructus Citri Sarcodactylis, 1-2 parts of Rhizoma Coptidis, 2-4 parts of wolfberry fruit, 1-1.2 parts of Endoconcha Sepiae, 1.5-2.5 parts of Cortex Moutan, 0.08-0.1 parts of Cordyceps militaris, 3-5 parts of tremella, 2-3 parts of Radix Ophiopogonis and 0.6-0.8 parts of xylooligosaccharide. The traditional Chinese medicine prepared through compatibility and scientific matching of many traditional Chinese medicines has an acid inhibition effect in order to avoid pains induced by stomach and nerve spasms, and has the advantages of stomach treatment and protection effects, no side effects, supplementation of required nutrition to bodies, symptom alleviation, thorough treatment, good effect and fast effectiveness.