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41 results about "Guanidine Sulfate" patented technology

Packaging 100, 500 g in poly bottle General description The multicomponent condensation of guanidine sulfate salt with H 2 S and CH 2 O was studied.

High salinity wastewater recycling system

The invention discloses a high salinity wastewater recycling system. The high salinity wastewater recycling system comprises a catalysis oxidation pond, an oxidation stabilization pond, an after-biochemical BAF pond, a clean water pond, a diluting comprehensive tank, a pretreatment primary BAF pond, a pretreatment secondary BAF pond and a water outlet pond, the catalysis oxidation pond, the oxidation stabilization pond, the after-biochemical BAF pond and the clean water pond are connected in sequence through a rear transmission pipeline, and the catalysis oxidation pond is filled with ozone catalysis particles in the form of a static bed; the ozone catalysis particles are composed of activated aluminum oxide particles, copper oxide, titanium oxide, polyethylene glycol and polyvinyl alcohol; a carrier is prepared from, by weight, high-density polyethylene, polypropylene resin, low-density polyethylene, bamboo charcoal powder, wood powder, lignin, dichloromethane, diethyl guanidine sulfate, N,N'-ethylene bis stearamide, maleic anhydride and dicumyl peroxide. The high salinity wastewater recycling system has the good effects of removing COD, removing color, removing odor, degrading poisonous pollutants for wastewater and maintaining the biodegradability of the wastewater.
Owner:KOOVINE ENVIRONMENTAL PROTECTION TECH CO LTD

Separating and purifying method of camptothecin

The invention relates to a separating and purifying method of camptothecin. The method comprises the following steps of: (1) adding a camptothecin mixture into a sodium hydroxide solution for a ring opening treatment; (2) sequentially adding a separating reagent and a separating solvent to the reaction solution in the step (1) and reacting for 2-3 hours at 40-80 DEG C; naturally cooling; and standing at -10-40 DEG C till compound crystals of the camptothecin with opened rings and the separating reagent for separation; and filtering to obtain a compound crystal crude product of the camptothecin and the separating reagent, wherein the separating reagent is guanidine hydrochloride, guanidine carbonate, guanidine sulfate or guanidine nitrate, and the separating solvent is methanol-water, ethanol-water or acetone-water; and (3) recrystallizing the compound crystal crude product of the open-ring and the separating reagent and filtering, and adding filter cakes into concentrated hydrochloric acid to be uniformly mixed; and then, carrying out suction-filtering, washing and drying to obtain the camptothecin. The method provided by the invention can be used for reasonably and efficiently separating the camptothecin, and provides great convenience for experimental and production works, and meanwhile avoids material and energy source wastes.
Owner:THE NORTHERN RES INST OF NJUST

Intermittent aeration and biochemical nitrogen and phosphorus removal treatment system

The invention discloses an intermittent aeration and biochemical nitrogen and phosphorus removal treatment system. A catalytic oxidation tank of the device is filled with ozone catalysis particles inthe form of a fixed bed, and the ozone catalysis particles are prepared from, by weight, activated alumina particles, copper oxide, titanium dioxide, polyethylene glycol and polyvinyl alcohol. Post-biochemical BAF tanks also include an anaerobic tank and an aerobiotic tank, a lower screening plate and an upper screening plate are installed at the lower portion and the upper portion of the aerobiotic tank respectively, a carrier is prepared from, by weight, high-density polyethylene resin, low-density polyethylene, bamboo charcoal powder, wood powder, lignin, methylene dichloride, diethyl guanidine sulfate, N,N'-ethylene bis-stearamide, maleic anhydride, dicumyl peroxide, gelatin, magnetic powder and pentaerythritol stearate. The intermittent aeration and biochemical nitrogen and phosphorusremoval treatment system achieves wastewater COD removal, decolorization, deodorization and degradation of toxic pollutants in the catalytic oxidation treatment process of sewage in the coal chemicalindustry.
Owner:KOOVINE ENVIRONMENTAL PROTECTION TECH CO LTD

High salinity wastewater drainage and treatment system

The invention discloses a high salinity wastewater drainage and treatment system. The high salinity wastewater drainage and treatment system comprises a catalysis oxidation pond, an oxidation stabilization pond, an after-biochemical BAF pond, a clean water pond, a diluting comprehensive tank, a pretreatment primary BAF pond, a pretreatment secondary BAF pond and a water outlet pond, the catalysisoxidation pond, the oxidation stabilization pond, the after-biochemical BAF pond and the clean water pond are connected in sequence through a rear transmission pipeline, and the catalysis oxidation pond is filled with ozone catalysis particles in the form of a static bed; the ozone catalysis particles are composed of activated aluminum oxide particles, copper oxide, titanium oxide, polyethylene glycol and polyvinyl alcohol; a carrier is prepared from, by weight, high-density polyethylene, polypropylene resin, low-density polyethylene, bamboo charcoal powder, wood powder, lignin, dichloromethane, diethyl guanidine sulfate, N,N'-ethylene bis stearamide, maleic anhydride, dicumyl peroxide and gelatin. The high salinity wastewater drainage and treatment system has the good effects of removingCOD, removing color, removing odor, degrading poisonous pollutants for wastewater and maintaining the biodegradability of the wastewater.
Owner:KOOVINE ENVIRONMENTAL PROTECTION TECH CO LTD

Method for producing adipic acid, hexamethylenediamine sulfate and polyhexamethylene (di)guanidine sulfate from nylon-66 through depolymerization

The invention discloses a method for producing adipic acid, hexamethylenediamine sulfate and polyhexamethylene (di)guanidine sulfate from nylon-66 through depolymerization, which is characterized by comprising the following steps of: depolymerizing the waste nylon-66 by using 28 to 35 percent sulfuric acid to obtain refined adipic acid and hexamethylenediamine sulfate; polymerizing the hexamethylenediamine sulfate serving as a raw material and dicyandiamide at the temperature of between 170 and 200 DEG C for 3 to 9 hours to obtain white or pale yellow polyhexamethylene diguanidine sulfate; reacting the dicyandiamide with ammonium sulfate at the temperature of between 170 and 190 for 1 to 3 hours, and adding the hexamethylenediamine sulfate to continue the reaction for 3 to 7 hours to obtain white or pale yellow polyhexamethylene guanidine sulfate. The method solves the problems of low recovery rate of the hexamethylenediamine sulfate and poor benefit in the conventional nylon-66 recovering process, and develops the stable, low-toxin and high-efficiency disinfectant polyhexamethylene (di)guanidine sulfate; and the technological process is simple, convenient, environment-friendly and safe.
Owner:NINGBO UNIV

Process for advanced treatment of phenolated water at gas station

The invention discloses a process for advanced treatment of phenolated water at gas station. The treatment process is based on a special treatment device, and the special treatment device comprises acatalytic oxidation tank, an oxidation stabilization tank, a post-biochemical BAF tank, a clean-water tank, an integrated dilution tank, a pretreating primary BAF tank, a pretreating secondary BAF tank and an effluent tank, wherein the catalytic oxidation tank, the oxidation stabilization tank, the post-biochemical BAF tank and the clean-water tank are sequentially connected through a rear-sectiontransmission pipeline. The ozone catalyzing particles are prepared from activated aluminum oxide particles, copper oxide, titanium dioxide, polyethylene glycol and polyvinyl alcohol. A carrier is prepared from, by weight, 60-70 parts of high-density polyethylene, 10-15 parts of polypropylene resin, 6-8 parts of low-density polyethylene, 8-10 parts of bamboo charcoal powder, 4-6 parts of wood powder, 2-3 parts of lignin, 2-3 parts of dichloromethane, 1-2 parts of diethyl guanidine sulfate, 0.5-1 part of N,N'-ethylene bis-stearamide and 3-5 parts of maleic anhydride. Macromolecular refractory organic matter is oxidized into micromolecular biodegradable organic matter and thus the biodegradability of effluent is improved by adopting the process.
Owner:KOOVINE ENVIRONMENTAL PROTECTION TECH CO LTD
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