200 results about "Organic chloride compound" patented technology

The invention discloses a dechlorination agent and a preparation method thereof. The dechlorination agent is prepared from the following materials: 15-70wt% of carrier, 15-60wt% of active components, 1-10wt% of a pore-forming agent, 1-5wt% of an extrusion aid and 2-10wt% of a binder, wherein the carrier is at least one of weak acid salt, kaolin, pseudo-boehmite or Al2O3. The preparation method comprises the steps of mixing the materials, adding water, mixing, kneading, extruding, drying and calcining. The dechlorination agent has the advantages of high adsorption efficiency against high-concentration or low-concentration HCl at normal temperature, high dechlorination precision, high chlorine content of above 30% and a certain adsorption effect against organic chlorides; chemical reaction adsorption is adopted for adsorption against HCl, the adsorption is performed at normal temperature and normal pressure, energy consumption is not required, and the absorbed HCl and the active component in the dechlorination agent perform reaction to form a stable chemical substance to exist in an adsorber bed layer; and the dechlorination agent further has the advantages of low toxicity, high stability, easiness in filling and unloading, and no secondary pollution.

The invention discloses a method for recovering organic chloride from rectification residues of methane chloride or/and tetrachloroethylene. The method specifically comprises the steps of leading the rectification residues of methane chloride and tetrachloroethylene into an evaporator to perform evaporation, condensing volatile components into liquid and then feeding the liquid into a trap device and transferring the residues into a sublimator; using a tetrachloroethylene rectification system to separate trichloromethane, carbon tetrachloride and the tetrachloroethylene from a part of light component mixed liquid; meanwhile sublimating the residues in the sublimator under the 240-250 DEG C condition, cooling the residues through a condensation device to obtain an initial hexachloroethane product; leading the light component mixed liquid into a refining pan, adding and dissilving the initial hexachloroethane product and then transferring the product into a crystallizing pan for crystallization; performing filtration after the crystallization, collecting a filter cake and filtrate, drying the filter cake to obtain a hexachloroethane product and leading the filtrate into the evaporator for continuous circulation. The method is simple and adopts simple devices, additional solvents and raw materials are not needed, and the method has good environment-friendly benefit and social benefit.

The invention, belonging to the field of chemical industry production, discloses a method for removing contained chlorine from a byproduct hydrogen chloride gas generated in the process of producing organic chlorides, comprising the following steps: carrying out reduction reaction upstream on a byproduct hydrogen chloride gas output by the process of producing organic chlorides and a purification solution in a packed tower to remove chlorine, and then conducting freeze drying to obtain a high-purity hydrogen chloride gas with the chlorine content of less than 1ppm. According to the invention, by using a ferrous chloride solution containing satuarated hydrogen chloride as the purification solution to remove chlorine from the hydrogen chloride gas with a chlorine content of less than 5%(v/v) to obtain chlorine, the advantages of simpleness, reliability, fast removing speed, and low energy consumption and cost of purification are achieved, and the method can effectively raise the application value of the byproduct hydrogen chloride gas, broaden the application range of the byproduct hydrogen chloride gas, and the like; and the method can be used for removing chlorine from a synthetic hydrogen chloride gas with a chlorine content of less than 5%(v/v and byproduct hydrogen chloride gases generated from other production processes.