30 results about "Zirconium(IV) sulfate" patented technology

The invention discloses a preparation method of a molecular sieve composite catalyst Fe2O3/ZrO2/SO42 for desorbing a CO2-rich amine solution. The composite catalyst is obtained by loading Fe2O3 modified ultrastrong solid acid catalyst ZrO2/SO42- onto a carrier molecular sieve. The preparation method comprises the following steps: dissolving soluble iron salt and zirconium sulfate into a methanol solution to obtain a mixed solution A; heating the mixed solution A for one hour at the condition of 50 DEG C to obtain a mixed solution B; cooling the mixed solution B to the room temperature, addingmolecular sieve powder, and stirring for 5 hours to obtain a mixed solution C; ultrasonically treating the mixed solution C for more than 0.5 hour to obtain a mixed solution D; and drying and calcining the mixed solution D to obtain the molecular sieve composite catalyst Fe2O3/ZrO2/SO42. Compared with the prior art, the catalyst of the invention is simple in preparation process, cheap and easy inobtaining raw materials; the catalytic desorption performance is better than that of the traditional molecular sieve catalyst, a single metal oxide and a single metal oxide physically mixed catalyst;the catalyst is easy to separate, good in stability and recyclable; and the absorption performance for carbon dioxide of the amine solution is not influenced.

The invention discloses zirconium-loaded impregnation carbon defending against HCN and CNCl toxic agents. With coconut shell broken active carbon as a carrier skeleton material, the zirconium-loaded impregnation carbon is loaded with the following components in percentage by weight: 15-20% of Cu, 1-6% of Cl<->, 0.1-5% of W, 0.1-5% of V, 0.1-5% of Ce, 2-8% of Zr and the balance of active carbon, wherein Cu comes from basic copper carbonate, Cl<-> comes from ammonium chloride, W comes from ammonium metatungstate, V comes from ammonium metavanadate or zinc ammonium metavanadate, Ce comes from cerium nitrate or cerium oxide, and Zr comes from zirconium sulfate or zirconium oxychloride. In the zirconium-loaded impregnation carbon, an active carbon carrier is loaded with active components such as Zr, W, V, Ce and Cu by adopting certain technical means and technology, and the prepared impregnation carbon material has a certain defending effect against the HCN and CNCl toxic agents.

The invention discloses a chrome-free metal compound tanning agent which comprises the following components in percentage by weight: 60.0%-75.0% of zirconium sulfate, 10.0%-15.0% of aluminum sulfate, 10.0%-15.0% of titanyl sulfate and 5.0%-10.0% of sodium aluminum silicate. The invention further discloses a preparation method of the chrome-free metal compound tanning agent. The chrome-free metal compound tanning agent provided by the invention is good in comprehensive performance, simple in production process and environment-friendly; the preparation method of the environment-friendly chrome-free metal compound tanning agent is simple; in addition, the chrome-free metal compound tanning agent is good in compatibility with existing leather-making materials and easy to popularize.

The invention provides a passivation treating agent for a chromium-plating steel part, and relates to the technical field of chemical engineering. The passivation treating agent comprises the following components in percentage by mass: 3% of potassium hydroxide, 45% of chromium nitrate, 5% of n-octanal, 4% of graphene, 20% of malonic acid, 10% of oxalic acid, 3% of silica gel-loading zirconium sulfate and the balance of tertiary butanol. The passivation treating agent provided by the invention is long in using period, does not contain hexavalent chromium and hydrogen peroxide or other strong oxidants, facilitates wastewater treatment and is an environment-friendly passivation agent. The passivation treating agent is low in concentration and production cost, relatively economic and practical and capable of improving the salt mist resistance and corrosion resistance of a metal surface and prolonging the service life of the steel part.

The invention discloses a potassium-zirconium-carbonate cross-linking water-resistant agent and a preparing method thereof. The preparing method includes the following steps that water is added into potassium carbonate, and a potassium carbonate solution is prepared; the potassium carbonate solution is heated to 20 DEG C to 70 DEG C; under the stirring effect, zirconium basic sulfate is added intothe potassium carbonate solution, and the mass ratio of the zirconium basic sulfate to the potassium carbonate is 1:(0.47-0.8); the mixture is reacted for 0.5 h to 8 h, then filtering is carried out,and the obtained filtrate is the potassium-zirconium-carbonate cross-linking water-resistant agent. Potassium zirconium carbonate has high chemical activity, solidification is easy when the potassiumzirconium carbonate serves as a water-resistant cross-linking agent of a paper coating, coating solidification is rapid, and paper products have good water resistance without long-term storage or multi-section drying after machine discharging; coated paper has good comprehensive performance in the multiple aspects such as whiteness, printing glossiness, humidity resistance, abrasion resistance, anti-dry napping strength and anti-wet napping strength.

The invention discloses a preparation method of a catalyst for methane oxyhalogenation. The method comprises the following steps: (1) silica is impregnated with a lanthanum and nickel mixed liquid, dried and then roasted at a high temperature, and modified silica is prepared; (2) zinc is supported on modified silicon oxide prepared in step (1), drying and roasting are performed, and zinc supportedsilicon oxide is prepared; (3) zirconium sulfate solid acid and aluminium hydroxide slurry are mixed, and aluminium hydroxide slurry containing zirconium sulfate solid acid is obtained; (4) the aluminium hydroxide slurry containing zirconium sulfate solid acid performs spray soaking on zinc supported silicon oxide, and the catalyst for methane oxyhalogenation is prepared after drying and roasting. The catalyst prepared with the method has the advantages that methane conversion rate and selectivity of halomethane as a target product are increased simultaneously, deep oxidation of halomethane is inhibited, and yield of halomethane is increased obviously.

The invention belongs to the technical field of cross-linking agent preparation, and provides a titanium-zirconium cross-linking agent and a preparation method thereof. The titanium-zirconium cross-linking agent provided by the invention is prepared from the following raw materials: inorganic titanium, a ligand, inorganic zirconium, protonic acid and water, the inorganic titanium comprises titanium phosphate and/or titanium sulfate; the ligand comprises one or more of diethanol amine, triethanolamine, ammonium citrate and sodium gluconate; the inorganic zirconium comprises zirconium oxychloride and/or zirconium sulfate. According to the titanium-zirconium cross-linking agent, the titanium cross-linking agent and the zirconium cross-linking agent are introduced at the same time, so that the titanium-zirconium cross-linking agent has the advantages of the titanium cross-linking agent and the zirconium cross-linking agent at the same time, and the pH application range of the titanium-zirconium cross-linking agent is widened; meanwhile, the titanium-zirconium cross-linking agent has excellent temperature resistance. In addition, through selection of inorganic titanium, inorganic zirconium and the ligand, generation of alcohol small molecular compounds in the preparation process is avoided, and the titanium-zirconium cross-linking agent is good in stability and environmentally friendly.

The invention discloses a compound. The compound is prepared from copper-supported alumina, zirconium sulfate and a compound metal oxide NdCoO3-y with a perovskite structure, wherein y is oxygen vacancy; the weight ratio of the copper-supported alumina to the zirconium sulfate in the compound is (8 to 1) to (2 to 1); the weight ratio of the copper-supported alumina to the compound metal oxide NdCoO3-y with the perovskite structure in the compound is (10 to 1) to (5 to 1); and by taking the weight of the copper-supported alumina as reference, the content of the copper is 5 to 25 weight percentcounted by oxide. The preparation method of the compound comprises the following steps: mixing, kneading and molding the copper-supported alumina, the zirconium sulfate and the compound metal oxide NdCoO3-y with the perovskite structure, drying and calcining to obtain the compound. The compound has the advantages of high activity, low reaction temperature, simple preparation method, low cost and the like when being used for coalbed methane deoxygenation.

A catalyst for decomposing CCl4 is prepared through immersing its carrier in the aqueous solution of zirconium sulfate and/or zinc sulfate, adding the solution of inorganic alkali, baking, and calcining in inertial gas. It has high conversion rate, selectivity and long service life (1000 hr or longer).

The embodiment of the invention discloses a recycling method of liquid zirconium sulfate hydrolysate for coating rutile type titanium dioxide, and particularly relates to the field of coating of rutile type titanium dioxide, which comprises the following steps: step 1, zirconium slag comes from hydrolysate in a storage tank of zirconium sulfate solution for coating rutile type titanium dioxide, adding a proper amount of conversion accelerant according to the amount of the zirconium slag, and then performing crushing treatment; 2, adding zirconium slag and sulfuric acid mother liquor into the beaker, and stirring and mixing; 3, slowly pouring sulfuric acid with the concentration of 98% into the boiler, stirring, and controlling the reaction temperature and the reaction time; according to the method, external heating is not needed when the zirconium sulfate solution is prepared from the zirconium slag, the recycling rate of the zirconium slag reaches 99% or above, the problem of recycling of zirconium sulfate hydrolysate for rutile titanium dioxide coating is solved, discarding of waste in the storage stage of zirconium sulfate is reduced, the technological process for converting the zirconium slag into zirconium sulfate is shortened, and the production cost is reduced. And the reaction rate of the zirconium slag in the sulfuric acid solution is improved.

The invention discloses a preparation process method of anhydrous zirconium sulfate. The method comprises the following steps: adding ZrO2 into concentrated sulfuric acid, and reacting in a round-bottom flask with a reflux condenser; adding Zr (OH) 4 to serve as a reaction initiator to increase the reaction rate, wherein the mixture reacts under the magnetic stirring heating condition, the heatingtemperature is the boiling point (about 170 DEG C) of the solution, heating is stopped and stirring cooling is conducted to the room temperature after the reaction is conducted for 20 h, white precipitate appears in the solution, and anhydrous zirconium sulfate can be obtained after solid-liquid separation, wherein the solid-liquid separation of zirconium sulfate and concentrated sulfuric acid also comprises the following steps: mixing a concentrated sulfuric acid solution of suspended zirconium sulfate with deionized water according to a ratio of 1: 1, diluting, and carrying out suction filtration by using common filter paper.