37 results about "Sodium peroxodisulfate" patented technology

A polishing composition for a memory hard disk, which comprises the following components (a) to (d):(a) from 0.1 to 50 wt %, based on the total amount of the polishing composition, of at least one abrasive selected from the group consisting of silicon dioxide, aluminum oxide, cerium oxide, zirconium oxide, titanium oxide, silicon nitride and manganese dioxide,(b) from 0.001 to 10 wt %, based on the total amount of the polishing composition, of at least one iron salt selected from the group consisting of iron nitrate, iron sulfate, ammonium iron sulfate, iron perchlorate, iron chloride, iron citrate, ammonium iron titrate, iron oxalate, ammonium iron oxalate and an iron chelate complex salt of ethylenediaminetetraacetic acid,(c) from 0.01 to 30 wt %, based on the total amount of the polishing composition, of at least one peroxydisulfate salt selected from the group consisting of ammonium peroxydisulfate, potassium peroxydisulfate and sodium peroxydisulfate, and(d) water.

The invention discloses a making method of carbon-based high-valent silver molecular crystal battery, which comprises the following steps: dissolving silver nitrate into pure water; stirring; placing the active carbon in the silver nitrate solution; adsorbing; filtering; drying the active carbon; placing the potassium peroxodisulfate or sodium peroxodisulfate as oxidizer into distilled water; adding sodium hydroxide; diluting; heating; stirring to react with dried active carbon; insulating; filtering; washing four times through pure water; obtaining the product with Ag4O4 distributed evenly on the surface of active carbon; displaying stronger chemical adsorbing ability and chemical reactivity; reinforcing the purifying capacity of organic toxic and harmful material absorbed by active charcoal.

The invention discloses a preparation method of a wastewater remediation agent based on incineration fly ash. The preparation method comprises the following steps: (1) respectively weighing incineration fly ash, tuff powder and sodium hydroxide, uniformly mixing, and heating for activation, so as to obtain activated fly ash powder; (2) respectively weighing iron tailings and scrap iron slag, uniformly mixing, grinding, and sieving, so as to obtain iron-base powder; and (3) respectively weighing the activated fly ash powder, the iron-base powder and sodium persulfate, uniformly mixing, and grinding, so as to obtain the wastewater remediation agent. By virtue of the combination, mutual complementation and mutual cooperation of an incineration fly ash solidification technique and a techniquefor removing pollutants through an oxidation reduction effect, the synchronous and efficient removal of hexavalent chromium, pentavalent arsenic, divalent cadmium and benzo(alpha)pyrene in a water body with a pH value of 3-12 is realized, and the removal rate reaches up to 98%; pollutants are solidified in particles of the remediation agent, so that the leaching of the pollutants is avoided; a novel application direction is provided for the harmless treatment and resource utilization of the incineration fly ash; and the preparation method of the wastewater remediation agent is simple and low in raw material cost.

The invention discloses a method for synchronously achieving incineration fly ash detoxification and chromium slag reduction curing. The method includes the following steps that (1), incineration flyash and tuff are weighed, mixed to be uniform and ground, and gelatinized powder is obtained; (2), sodium hydroxide and sodium silicate are weighed, mixed to be uniform and ground, and an alkali activator is obtained; (3), sodium persulfate and sodium oxalate are weighed, mixed to be uniform and ground, and a reductive detoxification inducer is obtained; (4), chromium slag, the gelatinized powder,the alkali activator and the reductive detoxification inducer are weighed, mixed to be uniform and ground, and fly ash and chromium slag powder is obtained; (5), the fly ash and chromium slag powderis weighed and dissolved in water, the materials are mixed to be uniform, and fly ash and chromium slag slurry is obtained; (6), the fly ash and chromium slag slurry is sealed, activated through microwaves, cooled and put in a die to be cured. The leaching concentrations of multiple heavy metals and dioxin in the fly ash and a chromium heavy metal in the chromium slag are all lower than the entrance limiting value of a municipal solid waste landfill. Treated cured bodies have high acid resistance and high constraint capacity for heavy metal inorganic pollutants and organic pollutants.

This invention provides a liquid composition that removes titanium nitride from a substrate without corroding tungsten or a low-k interlayer dielectric also present on said substrate. Said liquid composition has a pH between 0 and 4, inclusive, and contains the following: at least one oxidizing agent (A) selected from the group consisting of potassium permanganate, ammonium peroxodisulfate, potassium peroxodisulfate, and sodium peroxodisulfate; a fluorine compound (B); and a tungsten-corrosion preventer (C). The tungsten-corrosion preventer (C) either contains at least two different compounds selected from a group of compounds (C1) consisting of alkylamines, salts thereof, fluoroalkylamines, salts thereof, and the like or contains at least one compound selected from said group of compounds (C1) and at least one compound selected from a group of compounds (C2) consisting of polyoxyalkylene alkylamines, polyoxyalkylene fluoroalkylamines, and the like. The mass concentration of potassium permanganate in the abovementioned oxidizing agent (A) is between 0.001% and 0.1%, inclusive, and the mass concentration of the abovementioned fluorine compound (B) is between 0.01% and 1%, inclusive.

The invention discloses a preparation method of a poly-silicon iron manganese graphene flocculant. The preparation method comprises the following steps: (1) uniformly mixing silica fume with concentrated sulfuric acid, and aging to obtain polysilicic acid; (2) adding graphite powder into polysilicic acid, uniformly mixing, and aging to obtain graphite polysilicic acid; (3) uniformly mixing sodiumpersulfate and potassium permanganate to obtain a mixed oxidant, adding the mixed oxidant into graphite polysilicic acid, uniformly mixing, carrying out ultrasonic treatment, and aging to obtain graphene oxide polysilicic acid manganese; and (4) uniformly mixing humic acid, iron powder and graphene oxide polysilicic acid manganese, aging, adjusting the pH value to be lower than 7, continuing aging, drying, and grinding to obtain the poly-silicon iron manganese graphene flocculant. The poly-silicon iron manganese graphene flocculant can capture various pollutants at the same time, the flocculant recovery efficiency is high, and the applicable pH range of the flocculant is wide; the preparation process is simple, the preparation condition requirement is low, the preparation process is easy to realize, and the required raw material source is wide.

The invention provides a production process for leaching of cobalt from cobalt-containing water-quenched slag. The process comprises the following steps: respectively subjecting powdered coal and cobalt-containing water-quenched slag to drying, grinding, crushing, sieving, etc., then carrying out uniform mixing, adding water and carrying out granulation, wherein lime is added as a binder in the process of granulation; carrying out drying, then putting an obtained substance into a graphite crucible for roasting, carrying out a reaction for a period of time, taking a resultant out and cooling the resultant at room temperature; and triturating and grinding the resultant, taking a small amount of the ground resultant, transferring the ground resultant into an autoclave, adding a certain amount of ammonium sulfate, sodium persulfate, ammonia water and water, carrying out sealed heating with continuous stirring, introducing cooling water to cool the autoclave after completion of a reaction, opening the autoclave after cooling, subjecting an obtained material to filtering and separating by using a rotary-vane vacuum pump, washing leached slag with ammonia water and carrying out drying.

The invention belongs to the technical field of sewage treatment and recycling, and relates to a method for removing antibiotics in a water body by activating peroxydisulfate without a catalyst undervisible light. The method comprises the following specific operation steps: adding PS into the water body containing the antibiotics, and activating the PS under the irradiation of the visible light to generate free radicals to remove the antibiotics, wherein the mass ratio of the antibiotics to the PS is 1: (27-135), the antibiotics are sulfonamide antibiotics, and the PS refers to a salt capableof providing peroxydisulfate ions and mainly comprises one or a mixture of more of potassium peroxydisulfate, sodium peroxydisulfate and ammonium peroxydisulfate. The method does not need additionalenergy consumption, needs a simple reaction device, is low in cost, simple in process flow and easy to operate, and thus has a wide application prospect.

A subject of the present disclosure is a cosmetic agent to lighten keratinous fibers containing—relative to its total weight—

(A) from about 12.0 to about 23.0 wt. % potassium peroxodisulfate and

(B) from about 10.0 to about 20.0 wt. % ammonium peroxodisulfate and

(C) from about 5.0 to about 15.0 wt. % sodium peroxodisulfate.

A second subject of the present disclosure is a method for lightening keratinous fibers, particularly red and/or reddish-blond keratinous fibers, wherein an agent of the first subject of the present disclosure is mixed with at least one additional component containing hydrogen peroxide and applied to the hair.

The invention discloses a method for preparing magnetic carbon cloth by utilizing non-woven fabric waste. The method comprises the following steps that ferric chloride and sodium persulfate are weighed separately, then dissolved in water, and stirred under the sealing condition until being dissolved completely, and a ferrous sulfide solution is prepared; a non-woven fabric is soaked in the ferroussulfide solution for 30-60 minutes under the sealing condition, and then taken out and dried until the water content is 20-40%; the obtained non-woven fabric is subjected to microwave activation in microwave shielding gas; after preset time is reached, microwave activation is ended, the non-woven fabric is cooled to the room temperature and then taken out, and the magnetic carbon cloth is obtained. The invention further includes the magnetic carbon cloth prepared through the method and application thereof. According to the method, iron ions and perbisulfate strengthen the carbonization process of the non-woven fabric waste, and magnetic ferrites are generated on the surface of the carbon cloth and effectively loaded; the minimum electrical resistivity of the magnetic carbon cloth preparedby utilizing the non-woven fabric waste is 1.37 omiga m, and the magnetic induction intensity is 0.12 mT.

The invention discloses a method for improving cement solidified chromium slag, which comprises the following steps: grinding and sieving chromium slag to obtain chromium slag powder; mixing an aceticacid aqueous solution with the chromium slag powder, and stirring to obtain chromium slag acid slurry; mixing sodium peroxydisulfate into the chromium slag acid slurry, and stirring until the sodiumperoxydisulfate is completely dissolved to obtain sulfur-doped chromium slag acid slurry; weighing aluminum ash and calcium oxide, and mixing to obtain externally added mixed powder; and respectivelyweighing the sulfur-doped chromium slag acid slurry, an externally added mixed powder and cement, mixing, uniformly stirring, putting an obtained mixture into a mold, and curing to obtain a chromium slag cement solidified body. The invention further discloses the chromium slag cement solidified body. By means of the method, reduction detoxification of chromium in the acid-leached state in the chromium slag can be achieved, and the chromium slag can be fully wrapped by generating ettringite, calcium acetate and chromium hydroxide to strengthen the hydrated calcium silicate hardening process. The uniaxial compressive strength of the chromium slag cement solidified body prepared through the method is 67.35% higher than that of a traditional chromium slag cement solidified body, and the leaching toxicity of hexavalent chromium is lower than that of the domestic waste landfill pollution control standard (GB16889-2008).

Bleaching agents with improved resistance to oil separation and better miscibility with dye-containing formulations comprise—in relation to their weight—from about 0.015 to about 10 wt.-% ethylene octene copolymer(s), from about 5 to about 70 wt.-% oil component(s), from about 1 to about 70 wt.-% peroxydisulfate(s) chosen from the group of sodium peroxodisulfate and/or potassium peroxodisulfate and/or ammonium peroxodisulfate, and ≦1 wt.-% free water.

The invention discloses a soil engineering gasket suitable for an environment containing multivalent cation mineral and a preparation method thereof. The soil engineering gasket is fixedly connected between a first soil engineering layer and a second soil engineering layer by a nano bentonite composite material. The preparation method of the soil engineering gasket comprises: step 101, preparing the nano bentonite composite material: diluting acrylic acid to obtain acrylic acid diluent; adding sodium bentonite powder into the acrylic acid diluent to form bentonite grinding fluid; adding sodium persulfate solution into the bentonite grinding fluid, and adding sodium hydroxide powder to form composite bentonite slurry; and drying the composite bentonite slurry and grinding to obtain the nano bentonite composite material; and step 102, connecting the nano bentonite composite material between the first soil engineering layer and the second soil engineering layer. The soil engineering gasket is used in an environment containing multivalent cation mineral, and has stable permeability coefficient and good anti-seepage performance. The preparation method has a simple process and a short period.

Agents for lightening keratinic fibers, which include, based on their weight, 20 to 75% by weight of oil(s), 0.05 to 5% by weight of polymer(s) from the group of ethylene/propylene/styrene copolymers and/or butylene/ethylene/styrene copolymers and/or butylene/propylene/styrene copolymers, and 1 to 70% by weight of peroxydisulfate(s), whereby the weight ratio of sodium peroxydisulfate in the agent to the total amount of peroxydisulfates in the agent is at least 0.2, possess increased storage stability, the improvement being not only in physical stability (sedimentation, phase separation) but also in chemical stability (degradation of the persalts). There are also improvements in product yield, spreadability of the application mixture, and the bleaching effect.

The invention discloses a method for treating a medical waste liquid by utilizing an electron beam irradiation technology. The method comprises the following steps: introducing the medical waste liquid into an electron beam treatment groove, adding sodium persulfate into the treatment groove, carrying out stirring until the sodium persulfate is completely dissolved, starting an electron beam accelerator for irradiation treatment of medical wastewater, and aerating carbon dioxide into the treatment groove at the same time; stopping carbon dioxide aeration and irradiation treatment, then addingsodium sulfite into the treatment groove, carrying out stirring until the sodium sulfite is completely dissolved, starting the electron beam accelerator again for irradiation treatment of the medicalwastewater, and stopping stirring and irradiation treatment so as to complete one-time electron beam irradiation oxidation-reduction alternate reinforcement treatment. According to the invention, on the basis of a traditional electron beam irradiation wastewater treatment process, through addition of the sodium persulfate and the sodium sulfite, additional arrangement of a stirring kettle, aeration of the carbon dioxide and alternate reinforcement of oxidation effect and reduction effect in an electron beam irradiation stage, high COD removal rate of the medical waste liquid is realized; and the treatment method is simple.

An object of the invention is to remove effectively metallic contaminants adhering to the glass substrate surfaces without increasing roughness of the glass substrate surfaces in the glass substrate for a magnetic disk. In a manufacturing method of a glass substrate for a magnetic disk, a cleaning step comprising a treatment of contacting the glass substrate with a cleaning liquid containing peroxodisulfate and having a pH of not less than 2 and not more than 4 is appended. In addition, an example of the cleaning liquid can be prepared by adding sodium peroxodisulfate to an acidic solution.

The invention provides a preparation method of a ferrous-per-disulfide-based composite remover, and belongs to the technical field of waste water treatment. A mixed ferro-manganese solution is prepared, alkali liquor is prepared, the alkali liquor is mixed in the mixed ferro-manganese solution, and ferro-manganese two-phase hydroxide ore pulp is obtained; the ore pulp is vacuum-dried to achieve constant mass, the ore pulp is ground, and ferro-manganese two-phase hydroxide is obtained; sodium per-disulfide is added, the materials are ground, and ferro-manganese disulfide hydroxide powder is obtained; complexing iron powder is added into the ferro-manganese disulfide hydroxide powder, and the finished ferrous-per-disulfide-based composite remover is obtained. The composite remover is appliedto water body treatment, and the requirements of treatment of an acidic water body, an alkaline water body and a neutral water body can be simultaneously met.