728 results about "Acid radical" patented technology

The invention relates to a preparation method for a chitosan natural polymer modified crude oil desalting demulsifier. The method comprises the following steps: 1) modifying polyethylene glycol monomethyl ether by halogenating; 2) preparing glycidyl dimethyl alkyl ammonium chloride; 3) preparing quaternized carboxy alkyl chitosan; 4) causing the modified polyethylene glycol monomethyl ether to react with the quaternized carboxy alkyl chitosan, thereby obtaining a target product, polyethylene glycol monomethyl ether grafted quaternized carboxy alkyl chitosan. According to the invention, the chitosan natural high-molecular compound is taken as the raw material and has the advantages of wide resource, naturality, non-toxicity, sustainability, excellent biological compatibility of products, degradability, and the like. The demulsifier prepared according to the invention has excellent demulsification dewatering effect; the molecule of the demulsifier contains a large amount of carboxy alkyl groups and quaternary ammonium salt groups and the electronegative ions, including metal cation, naphthene acid radicals, and surfaces are electronegative grains and have strong combining capacity, so that the demulsifier has the capacities of demulsifying while removing oil-soluble salt.

A method for lateral chain modification of aryl main chain polymers with aromatic ketones or aldehydes containing tertiary basic N-groups is described. The modification can be accomplished via addition of an aromatic carboxylic acid or an acid derivative containing a tertiary amine moiety to a metallized polymer. The tertiary amines on the modified polymer can be converted to quaternary amines with halogen alkanes. Modification of the aryl main chain polymers with aromatic groups containing sulphonic acid radicals is also described. The polymers formed can be crosslinked and prepared for use in a wide variety of membrane technologies including ion exchange, dialysis, reverse osmosis, nanofiltration.

The invention provides a method for treating complexed chemical nickel electroplating wastewater and aims at the problem in the existing complexed chemical nickel electroplating wastewater treatment processes that the nickel ion removal efficiency is inadequate. The method comprises the main processes of firstly adding calcium hydroxide into the wastewater, adjusting the pH to 8-9 so as to form calcium phosphate precipitates, adding sulfuric acid into a supernatant liquid so as to adjust the pH of the liquid to 4-5, then, adding a potassium ferrate liquid with strong oxidizing power so as to decomplex in a strong oxidizing manner and change complexed nickel ions into free-state nickel ions, then, adding calcium hydroxide, adjusting the pH to 10-11 so as to enable the free-state nickel ions to form precipitates to be removed from the wastewater, enabling trivalent ferric ions with excellent flocculation function generated after oxidation of ferric acid radical ions to have flocculation with hydroxide precipitates with an adsorption effect, and finally, adding polyacrylamide (PAM) to coagulate and precipitate, thereby removing nickel ions from the electroplating wastewater. The method has the advantages that the condition that the nickel ions obtained after the complexed chemical nickel electroplating wastewater is treated reach the national standards can be effectively guaranteed, the treatment efficiency is high, and the requirements on emission are met.

The invention discloses a method for the reaction of isoparaffin and olefin alkyl, which are catalyzed by acidic ionic liquid. The method adopts the isoparaffin and the C4 olefin as the reactant; the cation of the catalyst of the acidic ionic liquid is selected from imidazole cation or naphthyridine cation; the anion is selected from trifluoromethyl acid radical, methyl benzene acid radical or bicarbonate; the reaction solvent is water; the reaction temperature is 40 to 85 DEG C; the reaction pressure is 0 to 4.0 Mpa and the reaction time is 0.25 to 1 hours. The invention has the advantages of mild reaction condition, high activity, high selectivity, easy separation of oil and catalyst, circulating catalyst and low corrosive property.

The invention discloses dihydroporphin (III) chelates having plant growth regulating activity and use thereof as plant growth regulators. The respective structures of the chelates are shown below. In the structures, R may be H, Na, K, CH3 or C2H5, and X may be Cl, OCOCH3 or OH. The dihydroporphin (III) chelates are formed by chelating pyropheophorbide, purpurin and dihydroporphin serving as main ligands and different acid radicals and hydroxy radicals as axial ligands (X) with trivalent ions of iron serving as a transitional metal. The dihydroporphin (III) chelates serving as plant growth regulators are safe, nontoxic and insusceptible to accumulation of residue; the activity of the dihydroporphin (III) chelates are high and the effect of the dihydroporphin (III) chelates are remarkable; and the dihydroporphin (III) chelates can improve the chlorophyll content in plants, promote rooting, and increase germination rate, resistance and yield.

The invention discloses a waste lithium iron phosphate positive electrode material recovery method, which comprises: S1, taking a waste lithium iron phosphate positive electrode material, carrying outpretreatment to obtain lithium iron phosphate powder, mixing the lithium iron phosphate powder and a solid grinding aid, and carrying out ball milling to obtain mixed powder; and S2, leaching the mixed powder with water to obtain a leaching solution containing valuable metal ions, wherein the grinding aid is an organic acid, and the acid radical ions in the organic acid can form soluble complexeswith iron and lithium respectively. According to the scheme, the problems that in the prior art, the using amount of acid and alkali is too large, the yield of salt-containing wastewater is too large, and secondary pollution is likely to be generated can be well solved.

The invention relates to a high-load precious metal monatomic catalyst as well as a preparation method and application of the high-load precious metal monatomic catalyst. The high-load precious metalmonatomic catalyst is prepared by adsorbing precious metal acid radical ions or salt ions by taking a nitrogen-doped carbon material as a carrier, and then, radiating the obtained precursor powder byusing ultraviolet with a certain strength for a period of time. The catalyst has high active site density and high precious metal utilization ratio and shows excellent performances in reactions such as electrically-catalyzed hydrogen precipitation, oxygen reduction and oxygen precipitation.

The invention discloses a food grade electric kettle scale dissolver, comprising the following components according to the proportion by weight: 65-90% of poly-organic acid compound, 10-30% of metal anticorrosive and 1-5% of accessories. The poly-organic acid compound refers as a compound with one or more than one acid radicals; the metal anticorrosive is an organic compound with more than 6 hydroxide radicals; the accessories are food grade accessory ingredients. In the preparation method provided by the invention, the poly-organic acid compound is mixed with the polyhydroxy organic compound and the single function of each component and the coordination effect after being combined can be fully realized so that scales can be dissolved, the metal materials can be protected from corrosion; the raw materials used by the scale dissolver are food grade raw materials, and the main ingredients of waste liquor obtained by descaling are food calcium replenishment agent with no toxicity, no harm and no residue which can be naturally degraded fast. The scale dissolver can be directly applied in industrialized production with large market potential and outstanding social and economic benefits.

The invention provides a method for electrically restoring soil and underground water, which is realized in a way that: soil or underground water which needs to be restored is used as the conducting medium, metallic iron is used as the anode, a ferric salt solution is used as the working solution, the anode iron is oxidized into ions after losing electrons, the ions enter the anode working solution and move towards the cathode into the soil or underground water as the current carrier with positive charges under the action of an electric field; and copper or copper-coated iron or iron is used as the cathode, a cupric salt or ferric salt solution is used as the working solution, cupric ions or trivalent ferric ions are reduced into elementary substance copper or bivalent ferric ions, meanwhile, small amounts of heavy metal cations transferring from the soil to the cathode working liquid are also reduced, and acid radicals of cupric salts or ferric salts move towards the anode under the action of the electric field and enter the soil and the underground water. The method can restore soil and underground water which are polluted by heavy metals, acids or alkalis, does not change the pH value of the soil and the underground water, does not produce hydrogen, oxygen or chlorine with hidden danger and has the advantages of high current efficiency, low price and easy obtainment of the anode material.

A positive resist composition for electron beam, X-ray or EUV includes a compound having a proton acceptor functional group and capable of producing an acid radical upon irradiation with an actinic ray or radiation to reduce or lose the acceptor property or to change the proton acceptor functional group to be acidic, wherein the positive resist composition has a solid content concentration of from 2.5 to 4.5 mass %.

The invention discloses a preparation method of a Pb oxide nano powder for recovery and manufacture of a lead acid battery. The method comprises the steps of: (1) reacting lead salt or waste lead acid battery lead paste with an organic or inorganic compound capable of complexing with Pb atom / ion, so as to realize desulphurization or reloading of acid radical; and (2) carrying out treatment processes of filtering, drying for removing water and heating for decomposition, so as to obtain the Pb oxide nano powder. The method of the invention realizes an environment-friendly and energy-efficient recovery and production process with substantially reduced production cost; meanwhile, the prepared Pb oxide powder is beneficial for enhancement of product performance.

The invention provides a super early-strength type poly carboxylic acid admixture and a preparation method thereof. A molecule main chain of the admixture simultaneously contains carboxylic acid radicals and sulphonic acid radical internal salt, and a side chain of the admixture adopts long-chain polyether. The preparation method of the super early-strength type poly carboxylic acid admixture comprises the steps as follows: a carboxylic acid monomer, a sulfoacid quaternary ammonium salt amphoteric monomer and a high molecular weight polyether large monomer perform a free radical copolymerization reaction, the copolymerization proportion of the three monomers and the average molecular weight of the copolymer are reasonably controlled, and the poly carboxylic acid admixture provided with water reduction and super early-strength performance is prepared. The admixture has a higher water reduction rate, can accelerate the process of early hydration of cement, facilitates the improvement on the early strength of a cement base material, meanwhile has stronger raw material adaptability, and always shows a better super early-strength effect in different kinds of cement.

The invention relates to a palladium coordination polymer molecule aggregate catalysis material as well as a preparation method and an application thereof. The catalysis material is a coordination polymer molecule aggregate catalysis material formed by self-assembling on the surface of a solid substrate, the precursor of the catalysis material comprises palladium coordination ion as well as pyridine containing multidentate ligand or high molecular ligand, wherein the palladium coordination ion is selected from one of tetrachloro combined palladium acid radical, dichloro-2, 2'-dipyridine palladous, and dichloroacetamide palladous, and the pyridine containing multidentate ligand or high molecular ligand is selected from one of 4, 4'-combined pyridine, 2, 4, 6- collidine triazine, metal or hollow tetra pyridyl porphyrin, trans-1, 2- collidine ethylene, combined dipyridylzinc thiocyanate and polyethylene pyridine. LB film preparation technology or layered assembly method is adopted for organism selective ethylenic bond organic hydrogenation reaction, thus having high catalysis efficiency, easy realization in separation of catalyst and reactant and product, convenient operation and low cost.

The invention relates to an oil displacement composition containing a polyether carboxylate surfactant and a preparation method thereof, and mainly solves the problems of high preparation cost and poor high temperature and high salt resistant performances of oil displacement compositions in the prior art. The oil displacement composition containing the polyether carboxylate surfactant comprises 1 part by mass of a surfactant; 0-50 parts by mass of a polymer and 0-50 parts by mass of an alkali; when the amount of the polymer and the amount of the alkali are not simultaneously 0, the surfactant is a mixture of the polyether carboxylate surfactant shown as the formula I, an alcohol and a salt in a molar ratio of 1: (1-10): (1-10), X is O, R1 is a C8-C30 aliphatic hydrocarbon group or a C4-C20 straight chain or branched chain saturated and unsaturated alkyl-substituted benzene or naphthalene ring; or R1X is a rosin acid radical. The oil displacement composition containing the polyether carboxylate surfactant well solves the problems of high preparation cost and poor high temperature and high salt resistant performances of the oil displacement compositions in the prior art. The oil displacement composition containing the polyether carboxylate surfactant can be used for improving oil recovery efficiency of high temperature and high salinity sandstone oil reservoirs and used in production. The R1X is (CH2CH2O) m1 (CH3CHCH2O) n (CH2CH2O) m2R2COOM,and shown as the formula I.

The invention provides a berberine organic acid salt, a berberine organic acid salt inclusion compound and preparations method thereof. The berberine organic acid salt consists of an alkali base and a salt ligand, wherein the alkali base is a jamaicin alkali base; the salt ligand is an acid radical of organic acid; the mole ratio of the alkali base to the acid radical of organic acid is 1:1; and the berberine organic acid salt inclusion compound consists of an inclusion base material and the berberine organic acid salt. The method for preparing the berberine organic acid salt comprises the following steps of: neutralizing solution of jamaicin and solution of organic acid into salt; crystallizing the salt; and filtering, leaching and drying the crystallized salt so as to obtain the berberine organic acid salt. The method for preparing the berberine organic acid salt inclusion compound comprises the following steps of: dissolving the inclusion base material; adding the berberine organic acid salt into the dissolved inclusion base material for dissolving and inclusion; cooling and standing reaction liquid to separate coprecipitate out; leaching the coprecipitate with acetone; and drying a filter cake so as to obtain the berberine organic acid salt inclusion compound. The berberine organic acid salt and the berberine organic acid salt inclusion compound provided by the invention have the advantages of high bioactivity, small dosage and high dissolubility. The preparation methods have the advantages of simple process, high product purity, easy operation control, simple equipment and easy realization of industrialized production.

The invention discloses a method for treating haze and indoor air pollution by using a tourmaline honeycomb body. The method comprises the following steps: preparing the tourmaline honeycomb body, mounting the tourmaline honeycomb body at the certain position of dust-containing flue gas, tail gas and air or water vapor channel, contacting and rubbing water molecules and dust-containing gas in airflow and tourmalines in honeycomb holes, performing electric polarization to generate negative ions, attracting and combining with superfine particles with positive charges in the flue gas, tail gas and air through the negative ions so as to neutralize the positive electricity of the superfine particles, so as to enable the superfine particles to be not repelled with one another and aggregated and settled; and removing heavy metal ions and acid radical ions in the flue gas and air through the chemical degradation of formaldehyde, NOx, CO and unburned hydrocarbons through the negative ions and strong adsorption property of the tourmaline, so as to reduce or eliminate the air pollution, and purify air. The method is good in effect, can be continuously operated and has the characteristics of high efficiency, energy conservation, simplicity and economical efficiency, and the operation consumption and the cost are reduced by over 30 percent.

The invention discloses fluorinated hyperbranched polyester acrylate and a preparation method thereof. Fluoride-alcohol and hydroxy acrylate are chosen to react with diisocyanate respectively to achieve two semi-additive products, and the two semi-additive products in proper proportions are used to react with hydroxyl-terminated hyperbranched polymer, to achieve hyperbranched polymer fluorine terminated bases with acrylic acid ester base groups and halothane base groups linked to the hyperbranched molecular framework through carbamate base groups as well as acrylic acid modified hyperbranched polymer. The iso-cyan acid radical reaction of the method has high activity, the Fluoro-alcohol conversion rate is high, the raw materials are cheap and easy to obtain, the operation is easy, and capable of facilitating industrial production. The fluoric hyperbranched polyester acrylate achieved by the method can be applied to ultraviolet-light solidification coating, the achieved coating has sound hydrophobic and oleophobic performances, and the industrial application is very broad.

The invention relates to a novel preparation method and a product of ferric phosphate, in particular to a preparation method and a product of ferric phosphate in the application field of positive electrode materials of batteries, aiming at overcoming the defects of low product purity, high production cost, poor property, and the like which are caused in such a way that acid radical ions, sodium ions and potassium ions are easy to introduce in the prior art. The preparation method comprises the following steps of: regulating the pH of a solution with ammonia water by taking ferrous oxalate and phosphoric acid as raw materials and hydrogen peroxide as an oxidizing agent; reacting at 20-80 DEG C for 30-240 minutes; filtering, washing and drying to obtain a battery-grade ferric phosphate dihydrate product; and then calcining at 500-800 DEG C for 30-240 minutes to obtain anhydrous crystalline ferric phosphate.

The invention discloses a method for finishing a noble metal coating of a porous gold and the method comprises the following steps: the nanoporous gold is made by corroding gold-silver alloy; the nanoporous gold is soaked into a certain concentration of a solution containing chloroplatinic acid radical ions (or chloroplatinous acid radical ions, or chloropalladic acid radical ions, or chloropalladic acid radical ions, or the mixture) for an appropriate time to cause the surface of the nanoporous gold to absorb some noble metal ions, the other noble metal ions except for the noble metal ions absorbed on the surface of the nanoporous gold are washed clean, and the noble metal ions absorbed are reduced to a noble metal simple substance under proper electrochemical conditions, and the noble metal simple substance is tightly bonded on the pore wall of the nanoporous gold. The method of the invention can be used for preparing a catalyst which combines porous metals with ultra-low content of noble metals and can be applied in the catalytic fields of fuel cells and the like.

The present invention relates to waste water treating technology, and is especially the technological process of eliminating acid radical and iron ion from iron and steel pickling waste water and reusing the treated waste water. Except neutralizing and precipitating steps, the technological process includes also one circular contacting oxidation step, in which the waste water through neutralizing and precipitating treatment is treated in contacting oxidation device so that the bivalent iron ion reacts with water and oxygen to produce water insoluble trivalent iron ion, and one secondary precipitation step to eliminate trivalent iron ion before the clear water is reused. The present invention makes it possible to realize zero discharge.

The present invention relates to pre-treatment of tail ore, concretion cementing material obtained therewith and their preparation process. Tail ore in 30-90 wt%, salts connecting K+, Na+, Ca2+, Mg2+ and / or Fe2+ ion and acid radical ions in 0.1-8 wt%, and other material containing crystal water, hydroxide radical, hydroxyl group, CO22 or other volatile components in 5-60 wt% are mixed, and the mixture is then hydrothermal alteration reacted at 200-900 deg.c. Then, the hydrothermal alteration reacted material in 50-90 wt%, cement clinker in 0.1-29 wt%, blast furnace slag or other high temperature treated waste in 0-30 wt%, gypsum in 0-8 wt% and rock forming agent in 0.1-5 wt% are mixed and ground to obtain cement powder. The cement powder has high strength and high stability.

A separator for a lithium-ion battery includes a substrate, a coating, and a middle layer formed between the substrate and the coating. The middle layer includes a part of the substrate and a part of the coating. The substrate contains a base polymer, a first polymer, and a first inorganic material. The coating contains a second polymer and a second inorganic material. The first polymer and the second polymer independently contain an acid radical in a side chain thereof. The first inorganic material is reactive with the first polymer via a first neutralization reaction, and the second inorganic material is reactive with the second polymer via a second neutralization reaction. A method for preparing a separator for a lithium-ion battery and a lithium-ion battery are also provided.

An alkaline developing solution for development of a presensitized plate for use in making a lithographic printing plate, which developing solution comprises a polyoxyalkylene adduct of alkylene diamine, a polyoxyalkylene compound having an acid radical, and an anionic surfactant; a method for making a lithographic printing plate comprising the steps of: light-exposing a presensitized plate for use in making a lithographic printing plate; and developing the light-exposed plate with an alkaline developing solution comprising a polyoxyalkylene adduct of alkylene diamine, a polyoxyalkylene compound having an acid radical, and an anionic surfactant.

The cyanide-free alkaline copper dip plating process for die cast zinc part includes the following steps: dewaxing die cast zinc part, deoiling, soaking in alkaline immersion liquid at 15-60 deg.c and pH 7.5-13.0 for 5 sec to 15 min to form replacing copper layer. The alkaline immersion liquid contains two-valent copper ion, and one or several kinds of inorganic or organic complexing agent selected from pyrophosphoric acid, tartaric acid, citric acid, gluconic acid, EDTA and HEDP acid radical ion a in the concentration of 1-150 g / L. The process of the present invention may be used to replace cyanide copper plating to form copper coating with high adhesion force without cyanide pollution.

The invention belongs to the technical field of waste processing and circular economy, in particular to a circular processing method of stainless steel acid washing waste liquid. The circular processing method comprises the steps of: in allusion to various acid radical ions and metal ions (SO4<2->, F<->, Cr<3+>, Ni<2+>, Fe<2+>, Fe<3+>) in the stainless steel acid washing waste liquid, firstly regulating the pH value of the acid washing waste liquid to 7-10 by using alkaline liquid, and precipitating and drying the metal ions Cr<3+>, Ni<2+>, Fe<2+> and Fe<3+> to form a metallurgical raw material; then adding lime to a filtrate to precipitate F<->, CO3<2-> and SO4<2-> in the forms of CaF2, CaCO3 and CaSO4; and finally adding Na2CO3 to the filtrate to obtain CACO3 precipitation, wherein the filtrate is the mixed solution of NaOH and Na2CO3 and directly returns the filtrate to the stainless steel acid washing waste liquid to precipitate the metal ions. The circular processing method realizes ultralow emission of the stainless steel acid washing waste liquid, danger-free solid waste emission, harmless reutilization of heavy metal ions and recycling of tail liquid, and has obvious economic, environmental and social benefits.

A process for synthesizing a micro-class hollow zinc selenide sphere features that hydrothermal reduction reaction between zincic acid radical ions and seleninic acid or soluble selerate under action of hydrazine hydrate as reducer in strong alkaline condition at 100-200 deg.C in a sealed reaction. It is possible to dope it or coat it. Its advantages are low cost and high quality.

The invention discloses a process for producing gelatin by using an acid method. The process comprises the following steps of: selecting appropriate leather, and washing and mechanically degreasing the leather; soaking the leather into food-grade hydrochloric acid, washing the acid soaked raw material for at least two times, slowly performing neutralization reaction by using sodium hydroxide, extracting gelatin, adding a flocculating agent when the gelatin is treated, and performing flocculating settlement; and filtering the settled material through a cotton cake filter, performing ion exchange to remove metal ions and acid radical ions after the filtrate is obtained, performing membrane ultra-filtration concentration on the filtrate, performing three-effect evaporation and flash sterilization, extruding the gelatin, and thus obtaining a gelatin finished product. By the process, the whole production period is shortened, the quality of the product is improved, the water consumption during washing is reduced, and the unit consumption of the leather in production is reduced.

The preparation process of magnetic composite organic bentonite as waste water treating material includes the following steps: 1) drying, crushing and sieving bentonite, mixing with FeCl3, FeSO4 and water in certain proportion to obtain suspension, and dropping sodium hydroxide solution while stirring; 2) washing the deposit with distilled water and stoving at 110-120 deg.c; and 3) grinding, adding cationic surfactant solution while stirring, ageing at room temperature for 10-12 hr, washing and filtering, stoving at 60-80 deg.c, grinding and 60-100 mesh sieving. The waste water treating material of the present invention can eliminating organic pollutant and acid radical pollutant from waste water and has excellent deposition separating performance.