52results about How to "Comply with industrial production requirements" patented technology

The invention provides a chitosan modified surface treatment liquid for a galvanized color-coated board and a preparation method thereof and belongs to the technical field of galvanized color-coated board surface treatment. The surface treatment liquid provided by the invention has the following components by weight percent: 0.2-1 of chitosan, 1-10 of organic silicon, 0.05-0.2 of inorganic corrosion inhibitor, 0.075-0.3 of oxidizing agent, 0.005-0.02 of complexing agent, 0.01-0.05 of inorganic filling material, a proper amount of pH regulating agent and the balance of deionized water. For a container, the corrosion inhibitor is intelligently released according to the destructive degree of a metal surface. The chitosan modified surface treatment liquid is characterized in that chitosan is not only used as a main film substance but also as a container for storing the corrosion inhibitor, and chitosan can intelligently release the corrosion inhibitor according to the destructive degree of the metal surface, thereby forming an intelligent paint film on the metal surface. In the invention, a chitosan raw material is sufficiently supplied and has low price, thus being beneficial to reduction of cost. The chitosan modified surface treatment liquid provided by the invention dose not contain chromium of any valence state and is an environmentally-friendly chromium-free passivating liquid.

The invention provides an ultrasound-assisted tea oil extraction method. Tea seeds are used as raw materials and the ultrasound-assisted tea oil extraction method comprises the following steps of: harvesting and sorting tea seeds, drying, shelling and crushing, sieving, weighing, adding an extraction solvent, performing ultrasound-assisted extraction, separating, evaporating and recovering the solvent, and obtaining tea oil. The extraction process is simple, processing cost is low, extraction efficiency is high, and tea-oil tree resources can be fully utilized.

The invention belongs to the field of synthesis and application of ionic liquids, and in particular relates to a preparation method of a piperazine compound ionic liquid, and its application to catalytic degradation and dissolution of aramid fiber 1313. The preparation method comprises the following steps: Step 1: chloroalkane ( R 1 Cl) and N-methylpiperazine react in toluene solution to obtain the formula I ionic liquid; Step 2: chloroalkane (R 2 Cl) and N-methylpiperazine react in a toluene solution, then filter (the product is a solid) or liquid separation (the product is a liquid), after concentration, add HY (anionic acid) at room temperature, complete the reaction, and dry Finally, the ionic liquid of formula II is obtained; step 3: after mixing the ionic liquids of formula I and formula II, the temperature is raised and stirred, and the compound ionic liquid is obtained after drying.

The invention relates to a method for decolorizing acid oil with a compound decolorizing agent. The method comprises the following steps: (1) heating acid oil which is not decolorized to 70-80DEG C, and keeping the temperature constant; (2) adding the following materials into the acid oil in sequence in a constant-temperature environment: 25vol% of ammonium hydroxide, iron powder, aluminum powder and 30vol% of hydrogen peroxide, wherein the addition amount of ammonium hydroxide is 1-5 percent of the weight of the acid oil, the addition amount of iron powder is 0.1-0.5 percent of the weight of the acid oil, addition amount of aluminum powder is 0.1-0.3 percent of the weight of the acid oil addition amount of hydrogen peroxide is 10-30 percent of the weight of the acid oil; then performing stirring and decolorizing for 40-80min at 70-80DEG C; and (3) cooling the decolorized acid oil to room temperature to obtain finished decolorized acid oil. The method provided by the invention is simple to operate and low in cost, and the acid oil processed by the method changes from black into bright yellow and is greatly improved in luster and transparency. According to the method, the external color of the acid oil is greatly improved while the quality of the acid oil is guaranteed so as to provide a good example for comprehensive utilization of the acid oil.

The invention belongs to the technical field of heterogeneous catalysts, and specifically relates to design and synthesis of a novel chiral polydentate ligand, a novel chiral metal-organic coordination polymer, which is prepared through the coordination-driven self-assembly between the chiral polydentate ligand and a metal precursor, and an application of the polymer as a heterogeneous catalyst in asymmetric epoxide ring-opening reactions for preparing chiral amino alcohol. The provided chiral coordination polymer prepared from the chiral polydentate ligand can be used to catalyze the asymmetric epoxide ring-opening reactions so as to prepare chiral amino alcohol efficiently and high-selectively. The novel self-supported catalyst system combines the advantages of homogenous catalysis and heterogeneous catalysis, can prepare chiral amino alcohol under mild conditions, can be recycled efficiently and reused for several times, and has a good application prospect in catalytic chiral amino alcohol preparation in industry.

The invention discloses 1-ethyl-4-alkylpiperazine ionic liquid which has the following chemical structural general formula: (img file='DDA0000450589630000011.TIF' wi='232' he='424' / ), wherein R is C3-C8 linear alkyl; Y- is I-, BF4-, PF6-, (CF3SO2)2N-, (C2F5SO2)2N-SCN- or N (CN)2-. The invention also discloses a method for preparing the 1-ethyl-4-alkylpiperazine ionic liquid. The method is simple in process and short in preparation cycle, the yield of the product can be over 80 percent, and the purity can be over 95 percent. Moreover, the invention also discloses application of the 1-ethyl-4-alkylpiperazine ionic liquid in deep desulfurization of oil and sulfur dioxide gas absorption.

The invention discloses a phosphate inorganic binding agent based on lactic acid and polylactic acid modification and a preparing method of the phosphate inorganic binding agent. The neutralization of the phosphate inorganic binding agent ranges from 3.2 to 3.6, 4.0 g-10.0 g of a modifying agent of lactic acid or polylactic acid is added to 100 mL of the binding agent, 5 g-10.0 g of a curing agent of metal oxide is added in the sand mixing process, and the substance amount ratio of phosphoric acid to aluminum hydroxide is 3.2-3.6:1. According to the phosphate inorganic binding agent based on lactic acid and polylactic acid modification and the preparing method of the phosphate inorganic binding agent, stability and moisture absorption resistance of self-hardening sand and room-temperature comprehensive strength of the self-hardening sand are improved, detection is conducted in a detection center of a certain university, and the environment-friendly performance meets the requirement. Molding sand performance tests are carried out in a certain enterprise, and the results show that the requirement for industrial production is met; the problem of pollution of organic resin sand is solved through the phosphate binding agent, and moisture resisting performance, the comprehensive performance and the folding resisting strength of the sand are improved; and meanwhile, the composition is simple, the cost is low, the defects of the same kind of products are effectively overcome, and wide market prospects are achieved.