33 results about "Nitrosyl chloride" patented technology

The object is to provide an etching liquid for a conductive polymer having excellent etching capability toward a conductive polymer, and a method for patterning a conductive polymer employing the etching liquid for a conductive polymer. The conductive etching liquid of the present invention is selected from the group consisting of (1) an etching liquid comprising greater than 0.5 wt % but no greater than 70 wt % of (NH4)2Ce(NO3)8 or at least 0.5 wt % but no greater than 30 wt % of Ce(SO4)2, (2) an etching liquid comprising greater than 0.5 wt % but no greater than 30 wt % of (NH4)4Ce(SO4)4, (3) an etching liquid comprising a hypochlorous acid salt aqueous solution having an effective chlorine concentration of at least 0.06 wt % and a pH of greater than 3 but less than 8, (4) an etching liquid comprising nitrosyl chloride which comprises at least 5 wt % of hydrochloric acid and at least 20 wt % of nitric acid, a (hydrochloric acid concentration+0.51×nitric acid concentration) value being no greater than 35 wt %, and a (hydrochloric acid concentration+0.5×nitric acid concentration) value being at least 30 wt %, (5) an etching liquid comprising at least 3 wt % but no greater than 40 wt % of a bromic acid compound and at least 4 wt % of an inorganic acid, (6) an etching liquid comprising at least 6 wt % but no greater than 40 wt % of a chloric acid compound and at least 7 wt % of a hydrogen halide, (7) an etching liquid comprising at least 0.001 wt % but no greater than 20 wt % of a permanganic acid compound, and (8) an etching liquid comprising at least 3 wt % but no greater than 30 wt % of a hexavalent chromium compound.

The invention relates to a method for preparing lactames, according to which a photonitrosation of a cycloallcane is carried out using nitrosyl chloride (NOCI). According to the invention, said photonitrosation is carried out by means of LEDs emitting a monochromatic light. The method according to the invention can also include a step comprising Beckmann transposition / dechlorination of the oxime hydrochloride generated during said phonitrosation, preferably carried out in a glass microreactor.

The invention relates to a method and device for producing sodium nitrate. The device comprises a nitrogen oxide ammoxidation preparation system, a soda solution preparation and absorption system, a mother liquor conversion system and a pre-evaporation system. A pre-evaporator is provided with an outer circulating heater. Steam condensate produced by I efficiency of the evaporator is used for heating raw material fluid in the pre-evaporator by virtue of an outer heater, harmful substances such as chloride ion, nitrosyl chloride in the raw material fluid are removed, pre-evaporation pressure is 0.1-0.3MPa, and temperature is 105-125 DEG C. Raw material departing from the pre-evaporator is subjected to evaporation, crystallization, centrifugal separation and drying to prepare a sodium nitrate product. According to the invention, the pre-evaporator provided with the outer circulating heater is used for recycling waste heat of primary steam condensate produced by utilizing I efficiency of the evaporator, energy source is saved and the quality of the sodium nitrate product is improved, corrosion of harmful gas to equipment is eliminated, and service life of the equipment can be beneficially prolonged.

The invention discloses a preparation method of 2-chloro-5-methyl pyridine, and belongs to the field of organic chemistry.With 2-amino-5-methyl pyridine as the raw material, under the existence of chloride, 2-amino-5-methyl pyridine reacts with nitrosyl chloride (NOC1) to form 2-chloro-5-methyl pyridine.The production process is simple and convenient, yield is high, and the yield can reach 96% according to 2-amino-5-methyl pyridine.

The invention provides a synthetic method of a diazomethane compound. Diazotized sulfonyl-3,5,5-trimethyl-2-cyclohexenyl acetate is decarboxylated under the action of neutral alumina to obtain the high-purity and high-yield diazomethane compound. The synthetic method is carried out without using nitrosyl chloride which has the characteristics of high toxicity and easy blasting as a reaction raw material is environmentally-friendly and safe. The reaction yield is good, all the reactions are carried out with the temperature in a range from 0 to room temperature, and requirements on energy are low. The posttreatment process of the final product is simple, so expensive silica gel column chromatography separation is avoided. The reactant alumina has the effects of impurity separation and product purification, so the high-purity sulfonyl diazomethane derivative can be obtained through simple reduced pressure pumping filtration and concentration.