492 results about "Vitriol" patented technology

The invention belongs to the gas separation technology area, it relates to a decarbonization solution which recycles or removes the carbon dioxide gas from the mixed gas which contains carbon dioxide, said invention specially relates to an ethoxyl ethylenediamine decarbonization solution. Its characteristic lies in: the invention has designed a new compound decarbonization solution which is composed of the main absorption component, the aid absorption component, the activation component, the corrosion inhibitor, the oxidation inhibitor and the water. Among, the main absorption component is AEE, the aid absorption component is AMP, MDEA and TEA, the activation component is MEA, DEA and PZ, the corrosion inhibitor is vitriol sour sodium, the oxidation inhibitor is the sodium sulfite and the cupric acetate. The effect and the profit of the invention are that it can be used in recycling many kinds of chemical industry reaction exhaust, the carbon dioxide of the combustion flue gas and the mixed gas, may also used in removing the carbon dioxide of town gas, the natural gas and so on, the merit of the decarbonization fluid is that the absorption capacity is big, purification is high, desorption rate is big, regeneration energy consumption is low.

The invention relates to a high phosphorus hematite-hematite-limonite magnetic roasting-extraction phosphorous reduction method, in particular applicable for an extraction phosphorous reduction method for the iron ores which mainly include the hematite-hematite and the limonite and accompany with magnetite, pyrrhotite, iron pyrites, etc. The method of the invention adopts magnetic roasting-wet extraction to reduce phosphorous; after carrying out modifying on high phosphorus iron ore, muriatic acid or vitriol is selected to carry out extraction phosphorous reduction on the iron concentrate obtained by a weak electromagnetic separator which not only can obtain the iron concentrate with an iron grade to be larger than 56 percent; simultaneously the content of the phosphorous in the iron concentrate is lower than 0.30 percent.

The invention discloses a preparation method of tert-butyl hydroperoxide and di-t-butyl peroxide which includes the following steps: after mixing vitriol, oxyful and phosphotungstic acid with certain concentration, adding tertiary butyl alcohol into a mixed liquor or adding the mixed liquor into the tertiary butyl alcohol; reacting for 0.5 to 5 hours under 20 to 60 DEG C; obtaining an oil phase after carrying out liquid separation on the crude product of the reaction; obtaining the tert-butyl hydroperoxide and di-t-butyl peroxide products by carrying out decompressing and rectifying on the oil phase; the method has the advantages of simple and convenient operation, low manufacture cost, safety, high efficiency and high yield; in addition, the method of the invention can adjust the relative content of the two reaction products by changing the reaction conditions. The reaction products of tert-butyl hydroperoxide and di-t-butyl peroxide are separated by decompressing and rectifying, thus avoiding the working procedures of acid cleaning and caustic wash in the traditional technique, solving the defect of overlarge waste water amount in the traditional technique, being beneficial to protecting the environment, reducing the manufacture cost and being capable of greatly increasing the enterprise benefits.

The invention belongs to a method for preparing ethyl hydrate by improved agronomic crop fabric wastes which is more economy for preparing ethyl hydrate by integrated utilization. The improved method comprises acid and caustic pretreating the agronomic crop wastes, color removing and concentrating crystal the xylose, enzyme treatmenting the ligno-cellulose, alcohol(ic) fermentation and rectification the hydrolytic decomposition sugar. The chemical pretreatment process comprises using 0.1-10alcaine, vitriol oil, phosphoric acid, volatility organic acid and mixture of the above acid, and 1-5Óalcarea lime, ammonia spirit and mixture of the above alkali in order to carry out in moment. The temperature of acid pretreatment is from normal temperature to 120 DEG C, and time is 1-8 hours. The pretreatment final liquor is used for color removing, concentrating and crystallization. The pretreatment final slag is hydrolyzed by cellulase and cellase at the temperature of 40 to 60 DEG C for 12-14 hours. The fermentation time of prehydrolysis or prehydrolysis while fermentation are 48 hours or so.

The invention relates to a high-concentration clear liquid compound fertilizer special for drop irrigation and a production method thereof. The fertilizer is prepared by dissolving urea, liquid phosphoric acid and potassium chloride, green vitriol, zinc vitriol, boric acid and fulvic acid in water with different temperatures in two steps and then mixing the compositions. The liquid compound fertilizer has the advantages that: the liquid compound fertilizer has good physical characteristics, can not deposit for long-term storage, has full nutrients to fully supplement various elements required by crops, can accelerate the growth of a crop root system and prevent precipitation reaction from blocking drop holes, in particular, the liquid compound fertilizer can obviously activate inorganic phosphorus pool of soil and reduce pH value of limy soil so as to greatly improve utilization efficiency of nitrogen and phosphorus nutrient resources. The clear liquid compound fertilizer can be separately applied for basal application and dressing, also can be used as a foliar fertilizer after diluted, and also can be mixed with other fertilizers for application, in particular has wide application respect in drop irrigation areas with the limy soil.

The invention relates to a method for preparing modified phosphogypsum through calcination without water scrubbing. The method is as follows: firstly, composite excitant and modifier are added into phosphogypsum and uniformly mixed, wherein, the weight percent of the phosphogypsum is between 85 and 95 percent; the weight percent of the composite excitant is between 2 and 5 percent; the weight percent of the modifier is between 3 and 10 percent; the composite excitant is green vitriol and aluminum sulphate, and the modifier is calcium oxide and cement; secondly, after uniform mixing, the mixture is dried at a drying temperature of between 100 and 110 DEG C, and the moisture of the phosphogypsum is lower than 8 percent; thirdly, the mixture enters into a calciner, is calcined for 0.5 to 1 hour at a temperature of between 150 and 300 DEG C, and is naturally cooled to prepare the modified phosphogypsum. The method decomposes and volatilizes harmful substances such as phosphor, fluorine, organic substances and so on contained in the phosphogypsum or converts the harmful substances into inert substance calcium pyrophosphate which is harmless to products, thereby not only avoiding secondary pollution but also reducing or avoiding influence of harmful chemical microconstituents contained in the phosphogypsum on the quality and the performance of the products. Moreover, the method shortens the processing time by 15 to 20 percent, saves the investment by 3 to 8 percent and reduces the energy consumption by 10 to 20 percent.

The invention relates to a treatment method for realizing resource recovery of electroplating sludge, which comprises the following steps: firstly, valuable metals in electroplating sludge are leached out by acid at normal temperature; secondly, filtered acid immersion liquid is poured into a copper electrolytic bath to recover and obtain electrolytic copper; thirdly, ferrum and chromium in copper acid immersion liquid are removed by ammonium jarosite through sedimentation, and iron-chromium residue and acid immersion liquid containing nickel are separated through filtration; and finally, the acid immersion liquid containing nickel is poured into an electrolytic bath of nickel to recover part of electrolytic nickel, and the rest nickel vitriol solution is taken as material for plating solution to be reused by a plating workshop. The method adopts a step-processing technique of acid dipping, electrolysis, sedimentation and electrolysis, so that electrolytic copper with high purity, iron-chromium residue and electrolytic nickel can be obtained. In addition, the method has simple process, low investment and operation cost, and higher economic benefit and environmental benefit.

The invention discloses a compound clarifying agent for high-aluminum alkali-free borosilicate glass and belongs to the field of glass manufacturing. The compound clarifying agent comprises the following components by weight percent: 80-89% of thinning agents, 3-6% of sulfates, 4-6% of chlorine alkaline earth salts and 4-10% of stannous oxides. The invention provides a better clarifying agent for a fusing process of the high-aluminum alkali-free borosilicate glass, so as to facilitate the discharging of air bubbles during the glass fusing process and increase the yield.

A method to extract charge elements with drain water and waster slag, It contains the following technology steps: a To acidulate; the cyanide tailings and blended with acid drain water. b To add protection alkali; To enter the agitated tank before floatation, and add protection alkali to neutralize and precipitate the ion of impurity. C To recover by flotation; the beneficiated ore will be produced out after a rude choice, two scavengings, and a choice. d To floatate the smelting end product of beneficiated ore; to produce out end product: vitriol, copper, bullion bar, sycee, and iron ore concentrate, the remained tailings will be sell to produce brick, the arrangement of the technology equipment is simple, and the operation is stable and easy to control, It' s adaptability to the cyanide tailings produced by different technology is very high, It not only eliminates the pollution to environment caused by the pile-up of tailings, but also further accelerates the reclaim of the useful element, and at the same time, it saves a part of cost spend in dealing with the drain water.

The invention relates to a plating solution for chemical plating nickel-tungsten-phosphor alloy, comprising nickel vitriol of 24 to 28 g/l, sodium citrate of 40 to 70 g/l, gluconic acid sodium salt of 20 to 30 g/l, ammonium sulfate of 30 to 40 g/l, sodium pyroborate of 5 to 15 g/l, sodium tungstate of 30 to 50 g/l, sodium hypophosphite of 20 to 28 g/l, potash iodate of 10 to 20 mg/l, thiourea of 0.5 to 1.5 mg/l and sodium dodecyl sulfate of 5 to 15 mg/l. The plating solution is characterized in that: the chemical plating method using the plating solution comprises the following steps that: the pH value of the plating solution is adjusted to 8 to 9, and then the plating solution is heated to 80 to 90 degree centigrade, and then the processed plating articles are dipped into the plating solution; the time of dip plating is determined by the required plating layer thickness. The plating solution for chemical plating nickel-tungsten-phosphor alloy has the advantages of higher stability and higher plating speed.

Disclosed a nanometer monox colloid electrolytic solution of lead-acid storage battery and its preparing method, relates to the manufacturing technique of lead-acid storage battery colloid electrolytic solution special for the electric bicycle. The invention prepares the nanometer monox colloid electrolytic solution by using the lead-acid analytical pure vitriol, vapor phase silica dioxide nanometer powder, salt cake, and the deionized water as main material, which are mixed to be added polyacrylamide and poly-sodium acrylate as gel modifying agent; then, adding litter lanthanum sulfate, cerous sulfate, tungsten oxide, and molybdenum oxide. The invention avoids the disadvantage effect of using sodium silicate colloid; uses vapor phase silica dioxide nanometer powder as gel agent; adds little chemical components, to form the new colloid electrolytic solution which can improve the agglutination property, increase the capacity of accumulator, and prolong the service life of deep discharging cycle. In addition, the invention can be used as electrolytic solution to replace present vitriol water electrolytic solution, to improve the rheological property of colloid electrolytic solution, and control the electrolytic process of water.

The invention discloses a preparation method of pigment-level titanium dioxide powder by a cyclic hydrochloric acid micro emulsion method. The preparation method mainly comprises the following steps of: carrying out acidolysis on titanium-enriched blast furnace slag or ilmenite by utilizing hydrochloric acid to obtain a clear acidolysis liquid; extracting titanium with an organic micro emulsion; collecting titanium in the clear acidolysis liquid by superfine liquid ball formed by a micro emulsion film in the organic micro emulsion; separating organic micro emulsion into organic extract liquor and raffinate; carrying out reextraction on the obtained organic extract liquor with reextraction agent to remove titanium; and hydrolyzing and calcining the obtained reextraction titanium liquid to obtain rutile type titanium dioxide, extracting and removing the impurities, such as iron, aluminum, magnesium and vanadium, in the raffinate by the organic micro emulsion, and returning obtained regenerated hydrochloric acid back to the acidolysis process. By using the method of the invention, the problems that the preparation method of the titanium dioxide powder in the prior art is high in vitriol cycle energy consumption and industrialization is hard to realize can be overcome, various byproducts can be prepared while the titanium dioxide powder is prepared, and resources in raw materials can be comprehensively recycled, so that the pollution problem of blast furnace slag on environment can be basically solved.

The invention discloses an automatic control algorithm for carrying out feed-forward control based on an artificial neural network and feeding vitriol in tap water by coagulation on the basis of fuzzy feedback control, comprising the following steps of: learning the process parameters of vitriol-feeding control by the artificial neural network, identifying the internal corresponding relationships in the system parameters, thus predicting the control value of the detection source water parameters of a core; subsequently correcting the prediction value by a method of fuzzy control feedback; and finally obtaining a vitriol-feeding control quantity meeting the requirement to control the operation of a metering pump, thus completing the full process of vitriol-feeding control. The algorithm can ensure the safety production and stable operation of water industries under the condition of variable source water references and achieves the objects of saving energy, reducing consumption, downsizing staffs and improving efficiency.

The invention provides a process for smelting zinc with a wet method of high temperature and high acid-jarosite iron removing-iron vitriol slag pickling at two stages, belonging to the technical field of non-ferrous metal smelting. The process comprises the following steps of neutral leaching, acid leaching at the first stage, acid leaching at the second stage, pre-neutralizing, settling vitriol and pickling to obtain zinc metal with a high recovery rate. The total recovery rate of zinc metal is 94.45%. The loss of valuable metal in iron vitriol slag is less, the recovery rate of metal is high, and the pollution of vitriol slag to the environment is improved.

The invention publics a method of preparing super sulfur-water surface on the metal copper surface, especially involves a method that it can prepare super sulfur-water surface, super vitriol surface and super sulfur-alkalescence surface simultaneously. The method puts the metal copper plate in the oversaturation solution full of vitriol copper for 10-15 days,and cleans with the deionized water, and has a air-dry; smearing the ethylene-dimethyl siloxanes on the metal copper plate surface reelingly, and drying 1-2 hours in air atmosphere 100-120deg.c.Then dropping the pure water, the acid or the alkali on the copper sign surface to make a determination of the contact angle which needs to be bigger than 150deg.The invention simultaneously has the super sulfur-water, super vitriol and super sulfur-alkalescence on the copper surface, it may help to prevent the metal copper surface from being polluted and rusted and so on.

The invention discloses an electrode of a capacitor and a preparation method thereof, and relates to a mixed super capacitor electrode based on polyaniline/directional carbon nanotube composite material and a preparation method thereof. The electrode is characterized by comprising a conductive matrix material and a polyaniline/directional carbon nanotube composite material; and the polyaniline/directional carbon nanotube composite material directly grows on one side or both sides of the conductive matrix material. In the preparation process, by selecting reaction gas and conductive matrix material and controlling chemical gas phase deposition technology, the directional carbon nanotube directly grows on a conductive matrix; then, electrochemical deposition of the directional carbon nanotube is carried out in vitriol solution of prepared hydrochloric acid aniline; and a polyaniline/directional carbon nanotube composite electrode with large power density, good multiplication rate performance, high energy density and long service life for a super capacitor is prepared. The invention has the characteristics of simple preparation process, low cost, easy large-scale production and the like.