21 results about "Peroxyformic acid" patented technology

The invention belongs to the technical field of detection methods, and provides a method for determining the content of amino acid in chyme in digestive tracts of livestock and poultry, which comprises the following steps: mixing a sample and a peroxyformic acid solution, and reacting to obtain an oxidation system; mixing the oxidation system, a hydrochloric acid solution and a chelating agent solution, and hydrolyzing to obtain a hydrolysis system; mixing the hydrolysis system and alkali liquor, then adjusting the pH value, and then mixing with acid liquor to obtain liquid to be detected; centrifuging the to-be-measured liquid, filtering, injecting a filtering system and the mixed amino acid standard liquid into an automatic amino acid analyzer, and measuring. According to the method, a certain amount of disodium ethylene diamine tetraacetate is added to chelate heavy metals in chyme in digestive tracts of livestock and poultry, and meanwhile, the heavy metals and redundant impurities are removed by adopting the steps of centrifuging, filtering and the like, so that the accuracy of amino acid detection is ensured, and the addicability of digestible amino acid content in daily ration is better. The hydrolysate is treated by adopting simple steps such as pH regulation and centrifugation, so that the operation process is simplified, and the operation error is reduced.

Peroxyformic acid compositions for removal of biofilm growth and other contaminants and impurities from industrial processing hard surfaces are disclosed. In particular, peroxyformic acid compositions may be dosed on site and / or generated in situ for the reduction and prevention of biofilms on the hard surfaces. Methods of employing the peroxyformic acid compositions for removal of biofilm growth and other impurities such as aldehydes and alcohols from industrial CO2 effluent are also disclosed which beneficially provide ambient biofilm control and break down more rapidly than other peracids, allowing for extended runs between CIP cleaning, including a reduction and / or elimination of cleaning of the scrubbers and other industrial surfaces.

Methods of generating performic acid by contacting aqueous oxidizing agent and aqueous formic acid source in liquid phase are disclosed. A system and apparatus for the in situ production of the performic acid chemistries is further disclosed. In particular, a continuous flow reactor is provided to generate performic acid at variable rates. Methods of employing the oxidizing biocide for various disinfection applications are also disclosed.

Peroxyformic acid compositions for treatment and removal of biofilm growth and mineral deposits on membranes for energy services applications are disclosed. In particular, peroxyformic acid compositions are generated in situ or on site generation for the reduction and prevention, of biofilms and the mitigation of mineral buildup on the membranes. The compositions according to the invention are compatible with the membranes under application of use conditions.

Peroxyformic acid compositions for removal of biofilm growth and other contaminants and impurities from industrial processing hard surfaces are disclosed. In particular, peroxyformic acid compositions may be dosed on site and / or generated in situ for the reduction and prevention of biofilms on the hard surfaces. Methods of employing the peroxyformic acid compositions for removal of biofilm growth and other impurities such as aldehydes and alcohols from industrial CO2 effluent are also disclosed which beneficially provide ambient biofilm control and break down more rapidly than other peracids, allowing for extended runs between CIP cleaning, including a reduction and / or elimination of cleaning of the scrubbers and other industrial surfaces.

The invention discloses a wood material light-aging-resistant preparation process and application thereof. The wood material light-aging-resistant preparation process comprises the following steps that 1, a wood material is soaked in a mixed solution of peroxyformic acid, NaOH, sodium sulfite and NaHCO3; 2, the treated wood material is dried at the room temperature till the water content is lower than 9%, the lignin removal rate is 80%-100%, and after the process, the wood material is in a loose fiber bundle state and is called as micro / cm cellulose; and step 3, soaking the cellulose with micro / centimeter in phenolic resin glue, and then carrying out hot pressing to obtain the photoaging-resistant cellulose plate. According to the application, the cellulose plate is used as a surface plate to cover an outdoor material for shading. A wood material is subjected to delignification treatment to a higher degree, then cellulose and hemicellulose subjected to delignification treatment are subjected to gluing and hot pressing again, the cellulose veneer with good light resistance is formed, and the cellulose veneer is firm, reliable, not prone to falling apart and capable of providing good light shading performance.

A method for oxidative brightening and whitening of a mined mineral is provided. The mined mineral to be brightened may be discolored kaolin clay, such as gray clay. The inventive method comprises adding to an aqueous slurry of a mined mineral to be brightened an oxidizing solution comprising a peroxyacid, such as performic acid and recovering bleached mineral of improved brightness, color and / or improved purity compared to the mineral to be brightened.

The application discloses a preparation method of epoxidized styrene-butadiene latex and epoxidized styrene-butadiene rubber and relates to the technical field of styrene-butadiene rubber epoxidation.The preparation method of the epoxidized styrene-butadiene latex uses a sulfonic acid type emulsifier and a non-ionic emulsifier as stabilizers of the styrene-butadiene latex.It is found for the first time that the use of the sulfonic acid type emulsifier and the non-ionic emulsifier as the stabilizers can not only improve the epoxidation rate of the styrene-butadiene rubber but also maintain the stability of the latex system in the process of synthesizing the epoxidized styrene-butadiene rubber.The sulfonic acid type emulsifier as an acidic surfactant can act as a catalyst in the latex epoxidation process, improve the generation efficiency and reaction rate of peroxyformic acid on the surface of the latex particles and rapidly prepare the epoxidized styrene-butadiene rubber.

The invention relates to a water-based cardanol-based epoxy resin anticorrosive coating, and belongs to the technical field of water-based epoxy resin coatings. The paint is prepared by adopting the following method: carrying out epoxidation on anacardol by adopting a method for generating peroxyformic acid in situ to prepare anacardol-based epoxy resin; preparing a water-based cardanol-based epoxy resin emulsion by a phase inversion method; and mixing the water-based cardanol-based epoxy resin emulsion with a curing agent, and curing to obtain the water-based cardanol-based epoxy resin anticorrosive coating. According to the method, cardanol is adopted as a raw material, the raw material is a natural renewable resource and is low in price, petrochemical resources can be protected, sustainable development of the resources can be achieved, and high-value utilization of agricultural by-products is achieved; the aqueous cardanol-based epoxy resin emulsion is prepared by adopting a phase inversion method for the first time, and the emulsion has the characteristics of good stability, long preservation time, small emulsion particle size, narrow particle size distribution, high cost performance and the like; and water is used as a solvent, so that the coating is environment-friendly and can be stably stored for a relatively long time.

Peroxyformic acid compositions for removal of biofilm growth and mineral deposits on membranes are disclosed. In particular, peroxyformic acid compositions are generated in situ or on site generation for the reduction and prevention, of biofilms and the mitigation of mineral buildup on the membranes. The compositions according to the invention are compatible with the membranes under application of use conditions.

Methods of generating performic acid by contacting aqueous oxidizing agent and aqueous formic acid source in liquid phase are disclosed. A system and apparatus for the in situ production of the performic acid chemistries is further disclosed. In particular, a continuous flow reactor is provided to generate performic acid at variable rates. Methods of employing the oxidizing biocide for various disinfection applications are also disclosed.

The invention relates to the technical field of hexanediol purification, in particular to a high-efficiency hexanediol purification process based on a membrane separation technology, which comprises the following specific steps: removing metal ions from a hexanediol raw material through ion exchange resin; adding the di-tert-butyl p-cresol concentrated solution into the raw materials to obtain a mixed solution; adding the buffer solution into the mixed solution and stirring; adding peroxyformic acid into the mixed solution for reaction; after the reaction is finished, neutralizing with sodium carbonate, and then carrying out extraction treatment; the method comprises the following steps: separating hexanediol through an ultrafiltration membrane and a nanofiltration membrane, and then carrying out reverse osmosis treatment; the hexanediol is obtained. According to the method, peroxyformic acid is added, and organic impurities containing double bonds can be oxidized into functional groups such as epoxy groups or hydroxyl groups, so that the chemical properties of the impurities are changed, the impurities are more easily separated from hexanediol in the subsequent treatment processes such as extraction, and the purity of hexanediol is more favorably improved.

Peroxyformic acid compositions for removal of biofilm growth and mineral deposits on membranes are disclosed. In particular, peroxyformic acid compositions are generated in situ or on site generation for the reduction and prevention, of biofilms and the mitigation of mineral buildup on the membranes. The compositions according to the invention are compatible with the membranes under application of use conditions.

The present invention relates generally to peroxyformic acid forming compositions, methods for forming peroxyformic acid, preferably in situ, using the peroxyformic acid forming compositions. The present invention also relates to the peroxyformic acid formed by the above compositions and methods. The present invention further relates to the uses of the peroxyformic acid, preferably in situ, for treating a surface or a target. The present invention further relates to methods for treating a biofilm using peroxyformic acid, including peroxyformic acid generated in situ.

The present invention relates generally to peroxyformic acid forming compositions, methods for forming peroxyformic acid, preferably in situ, using the peroxyformic acid forming compositions. The present invention also relates to the peroxyformic acid formed by the above compositions and methods. The present invention further relates to the uses of the peroxyformic acid, preferably in situ, for treating a surface or a target. The present invention further relates to methods for treating a biofilm using peroxyformic acid, including peroxyformic acid generated in situ.

The invention relates to a preparation method of a hydrophobic bio-based waterborne polyurethane coating, and belongs to a preparation method of an organic functional coating. According to the method, renewable non-grain plant oil-jatropha curcas oil (JO) is taken as a raw material, a clean oxidation process is adopted, and the jatropha curcas oil is subjected to green oxidation treatment by utilizing peroxyformic acid generated by formic acid and hydrogen peroxide in situ, so that the epoxy jatropha curcas oil (EJO) is prepared. Then, through a green nucleophilic addition reaction, octadecylamine (ODA) is used for carrying out solvent-free modification on the epoxy jatropha curcas oil, and the structure-controllable functionalized jatropha curcas oil-based polyol (o-JOL) is obtained. The functional polyol reacts with isophorone diisocyanate (IPDI) to prepare a jatropha curcas oil-based polyurethane prepolymer, and then the prepolymer is dispersed in a water phase through a high-speed dispersion technology to obtain the stable bio-based waterborne polyurethane dispersion (JPU). According to the preparation method, no harmful by-product is generated in the whole reaction process, and greenization and no pollution in the whole process from raw materials to products are realized.

The invention relates to the technical field of chemical production, in particular to a preparation method of 1, 2-octylene glycol, the preparation method comprises the steps of oxidation ring-opening esterification reaction, saponification hydrolysis reaction and post-treatment and refining, and an air flotation synergistic layering device comprises a tank body, a central shaft, a pre-filtering unit, an air flotation unit and a driving mechanism; the central shaft is vertically mounted in the tank body, and the top end and the bottom end of the central shaft both penetrate and extend to the outside of the tank body; the center shaft is rotationally connected with the top of the tank body, and a rotating seat fixedly sleeves the bottom end of the center shaft and is rotationally connected with the bottom of the tank body; the driving mechanism is arranged at the top of the tank and used for driving the center shaft to rotate. By accurately controlling the dripping rate of hydrogen peroxide, the reaction temperature and the effective oxygen molar ratio, side reactions such as violent decomposition and over-oxidation of peroxyformic acid are inhibited, and the selectivity and safety of the reaction are improved; and rectification is carried out under the conditions of high vacuum degree and specific tower kettle temperature, so that high-boiling-point impurities can be efficiently separated out, and a high-purity target product can be obtained.

Provided herein is a water treatment system arranged to feed performic acid to water in need of disinfection, and control residual levels of performic acid. The system is responsive to changes in water quality and water quantity, and enables compliance with toxicity limits of disinfectant concentrations.

Peroxyformic acid compositions for removal of biofilm growth and other contaminants and impurities from industrial processing hard surfaces are disclosed. In particular, peroxyformic acid compositions may be dosed on site and / or generated in situ for the reduction and prevention of biofilms on the hard surfaces. Methods of employing the peroxyformic acid compositions for removal of biofilm growth and other impurities such as aldehydes and alcohols from industrial CO2 effluent are also disclosed which beneficially provide ambient biofilm control and break down more rapidly than other peracids, allowing for extended runs between CIP cleaning, including a reduction and / or elimination of cleaning of the scrubbers and other industrial surfaces.

There are provided methods of treating edible matter comprising applying a composition comprising performic acid to the edible matter or a substrate therefor. Other embodiments are also disclosed.

There are provided methods of treating edible matter comprising applying a composition comprising performic acid to the edible matter or a substrate therefor. Other embodiments are also disclosed.