26 results about "Organic chloride compound" patented technology

The invention relates to the field of organic chemistry, and particularly discloses a synthetic method of berberine hydrochloride. The synthesis method of berberine hydrochloride comprises the following steps: S1, carrying out reductive amination reaction on bromohomopiperony lamine and o-veratraldehyde to synthesize an intermediate II; s2, carrying out Suzuki coupling reaction on the intermediate II and an organic boron compound under the catalysis of a palladium metal organic matter to synthesize an intermediate III; s3, the intermediate III and organic chloride are subjected to an amino chlorination reaction, and an intermediate IV is synthesized; s4, carrying out intramolecular atom transfer radical addition and intramolecular Friedel-Crafts alkylation cascade reaction on the intermediate IV in a mixed solvent under the catalysis of a copper catalyst to synthesize an intermediate V; and S5, carrying out oxidative aromatization reaction on the intermediate V and iodine under the catalysis of alkali to synthesize berberine hydrochloride. The synthesis process is simpler, reaction conditions are easier to control, the yield is high, and the method is suitable for industrial production.

The application discloses a quenching system suitable for treating high-temperature flue gas of organic chlorides incineration, which comprises a quenching device and an absorption tower; the quenching device comprises a quenching device jacket serving as a cooling medium channel arranged on an outer wall and a cooling graphite ring arranged on a top; the cooling graphite ring comprises a graphite ring jacket serving as a cooling medium channel, an overflow ring gap is formed on an upper portion of an inner wall of the graphite ring jacket, and cooling medium overflowing from the overflow ring gap can flow down along an inner wall of the quenching device; the quenching device jacket and the graphite ring jacket are communicated through a communication pipeline. The application has the following advantages: 1) the high-temperature flue gas can be rapidly cooled to 120 DEG C or below, the safe and stable operation of the absorption tower is guaranteed, and the generation of dioxin is avoided; 2) the cooling medium is uniformly distributed in the jacket, and the heating of each point in the inner cylinder of the quenching device is uniform; and 3) the high-temperature flue gas can be prevented from washing and corroding the interior.

The invention discloses an adsorbent capable of simultaneously removing hydrogen chloride and organochlorine as well as a preparation method and application of the adsorbent, and belongs to the technical field of preparation of adsorbents. The adsorbent is composed of a zeolite molecular sieve, a metal oxide and modified macroporous alumina. The adsorbent has the excellent effects of wide dechlorination range, capability of simultaneously removing hydrogen chloride and organic chloride impurities, fast mass transfer and diffusion, high utilization rate of active components, high dechlorination capacity, high dechlorination precision and no production of green oil in the use process.

Disclosed herein are methods for improving the restart performance of a highly selective ethylene oxide catalyst that has been shut down due to a planned or unplanned interruption. Appropriate selection of process variables at restart is believed to avoid deteriorated catalyst surface over-chlorination that may occur when chloride under the surface diffuses to the catalyst surface. According to the process, the initial restart reaction temperature is no more than five (5) degrees Celsius higher than the initial start-up steady-state reaction temperature on the fresh catalyst and is no more than five (5) degrees Celsius lower than the initial start-up steady-state reaction temperature. The addition of a supplemental organic chloride to the reactor feed gas is delayed until the reactor outlet oxygen concentration is equal to or greater than 0.5 mol% and until the relatively scaled reactor vinyl chloride feed gas concentration is not greater than 110%.

This invention discloses a process for selective dechlorination of cracked oil under hydrotreating, belonging to the field of heavy oil processing and refining technology. The process includes: pressurizing and heating the feedstock cracked oil to 250-350°C, mixing it with hydrogen, and then feeding it into a fixed-bed dechlorination reactor packed with a specific dechlorinating agent; the reaction is carried out under a pressure of 2.5-3.0 MPa, where organochlorides in the cracked oil are selectively converted and fixed onto the dechlorinating agent, while impurities such as organic sulfur and basic nitrogen do not undergo significant hydrogenation reactions. After cooling and gas-liquid separation, the reaction product yields dechlorinated cracked oil with a chlorine content of less than 10 μg / g, which can be directly used for subsequent hydrorefining. This invention solves the problem of organochlorine removal before hydrorefining of cracked oil. Through selective dechlorination, it avoids equipment corrosion problems caused by hydrogen chloride generation in subsequent processes, while reducing ineffective hydrogen consumption. The process is simple and economical.

The invention discloses a preparation method of a dechlorinating agent, which comprises the following steps: uniformly mixing dried red mud with the particle size of 50-200 meshes, a calcium source, metal elementary substance powder and deionized water, ball-milling, treating with a buffer solution with the pH value of 9-11, filtering, washing and drying to obtain the dechlorinating agent. According to the dechlorinating agent prepared by the preparation method of the dechlorinating agent provided by the invention, the metal simple substance component has the effect of catalytically converting organic chloride generated in a high-temperature pyrolysis process into inorganic chlorine, so that the organic chloride generated by pyrolysis is converted into inorganic chlorine and is fixed by the dechlorinating agent. Therefore, compared with the conventional adsorption type dechlorinating agent or chlorine fixing agent, the chlorine content in the pyrolysis oil gas product can be effectively reduced.

The invention relates to the technical field of preparation of anhydrous indium chloride, in particular to a preparation method of anhydrous indium chloride, which comprises the following steps: (a) providing an indium source and a chlorine source, the indium source being indium metal or indium compound, and the chlorine source being chlorine, hydrogen chloride or organic chloride; and (b) in an anhydrous inert atmosphere, introducing the indium source and the chlorine source into a reactor, controlling the reaction temperature in a range of 100-400, and carrying out a chlorination reaction for 1-10 hours to generate the indium chloride intermediate. According to the preparation method of anhydrous indium chloride, a product with ultra-high purity and stable chlorine content can be stably obtained by effectively inhibiting a hydrolysis reaction, meanwhile, the hygroscopicity of the product is remarkably reduced, and the product is convenient to store and transport. The technological process is mild and controllable, the safety is high, toxic corrosive gas is prevented from being used, and the method has the remarkable advantages of being easy and convenient to operate and environmentally friendly.

The invention belongs to the technical field of waste plastic pyrolytic oil treatment, and discloses a waste plastic pyrolytic oil hydrodechlorination method which comprises the following steps: introducing waste plastic pyrolytic oil, and carrying out first-stage hydrotreatment on the basis of a first metal sulfide catalyst in combination with preset first hydrogenation temperature, pressure, air speed and hydrogen-oil volume ratio, performing first-stage hydrotreating on the waste plastic pyrolysis oil to remove easily polymerized dialkene and monoolefine to obtain first-stage hydrotreated waste plastic pyrolysis oil, and performing second-stage hydrotreating on the first-stage hydrotreated waste plastic pyrolysis oil on the basis of a second metal sulfide catalyst in combination with preset second hydrogenation temperature, pressure, air speed and hydrogen-oil volume ratio to obtain a second-stage hydrotreated waste plastic pyrolysis oil; organic chlorides are removed, olefin is converted into alkane through hydrogenation, and dechlorinated waste plastic pyrolytic oil is obtained. According to the method, dialkene, monoolefine and organic chlorides in the waste plastic pyrolytic oil are removed, and the quality of the waste plastic pyrolytic oil is improved.

Organic chlorides are removed from bio-oils, including vegetable oils and animal fats, that are to be coprocessed to meet sustainability goals. The organic chlorides are removed by using active materials such as silica-alumina containing adsorbents. The bio-oils that are targeted for treatment contain greater than 5 ppmw chlorides and are planned for more than 10% of the feedstream that is being processed.

The invention provides an iron-visible light co-catalysis carbon-carbon repeating bond addition chlorination method, and relates to the technical field of organic chemistry, the chlorination method is characterized in that iron is used as a photocatalyst, under LED light or 300W xenon lamp illumination, an inorganic salt chloride is used as a chlorine source to selectively complete chlorine addition on repeating bonds of alkene or alkyne, and the chlorination method is used for preparing corresponding organic chlorides. According to the method, chlorine ions are used for replacing chlorine to directly realize selective addition halogenation of alkene or alkyne carbon-carbon repeating bonds, so that the method is a novel, environment-friendly, high-selectivity and low-energy-consumption halogenation reaction method, and has great theoretical significance and practical value.

Disclosed herein are methods of improving the restart performance of a high-selectivity ethylene oxide catalyst that has been shut down due to a planned or unplanned outage. It is believed that the proper selection of process variables on restart avoids exacerbating catalyst surface overchloriding that may occur when subsurface chlorides are diffused to the catalyst surface. In accordance with the method, the initial restart reaction temperature is no more than five (5) degrees Celsius above an initial start-up steady-state reaction temperature on fresh catalyst and is no more than five (5) degrees Celsius below the initial start-up steady-state reaction temperature. The addition of a make-up organic chloride to the reactor feed gas is deferred until the reactor outlet oxygen concentration equals or exceeds 0.5 mole percent and until a relative scaled reactor vinyl chloride feed gas concentration is no greater than 110 percent.

The utility model relates to the technical field of deacidification devices, in particular to an acid-containing organic chloride deacidification device which comprises a main body, the top of the main body is fixedly connected with an accelerated deacidification component, and the side surface of the accelerated deacidification component is fixedly connected with a temperature control component; the stirring blades at the bottom of the rotating rod are driven by the motor to stir reactants in the reaction tank, the reactants can be collided more frequently and fully through stirring, so that the reaction rate and efficiency are improved, the distance between the reactants can be shortened through stirring, the collision probability is increased, and the reaction efficiency is improved. Meanwhile, the surface area of reactants can be increased, the contact area of reaction is increased, so that the reaction rate and efficiency are improved, the reaction temperature in the reaction tank is controlled by a temperature controller, the organic chloride can be heated and cooled in the deacidification process, the environment temperature can be adjusted according to the preset temperature, and the change of the environment temperature can be sensed; and the temperature control precision is ensured.

Disclosed herein are methods of improving the restart performance of a high-selectivity ethylene oxide catalyst that has been shut down due to a planned or unplanned outage. It is believed that the proper selection of process variables on restart avoids exacerbating catalyst surface overchloriding that may occur when subsurface chlorides are diffused to the catalyst surface. In accordance with the method, the initial restart reaction temperature is no more than five (5) degrees Celsius above an initial start-up steady-state reaction temperature on fresh catalyst and is no more than five (5) degrees Celsius below the initial start-up steady-state reaction temperature. The addition of a make-up organic chloride to the reactor feed gas is deferred until the reactor outlet oxygen concentration equals or exceeds 0.5 mole percent and until a relative scaled reactor vinyl chloride feed gas concentration is no greater than 110 percent.

Methods for a pre-treating process that removes organic chlorides from pyrolysis oils, vegetable oils, fats, or combinations thereof before they are sent to a processing unit are described, as well as an apparatus for the pre-treatment process. The pre-treatment process involves the catalytic hydrodechlorination of the pyrolysis oils, vegetable oils, fats, or combinations thereof. The pre-treatment process may include saturating dienes.

Methods for a pre-treating process that removes organic chlorides from pyrolysis oils, vegetable oils, fats, or combinations thereof before they are sent to a processing unit are described, as well as an apparatus for the pre-treatment process. The pre-treatment process involves the catalytic hydrodechlorination of the pyrolysis oils, vegetable oils, fats, or combinations thereof. The pre-treatment process may include saturating dienes.

The invention presented consists of a method of corrosion protection in crude oil refining process units contaminated with organic chlorides through the application of anti-corrosion compounds based on rare earth salts, such as neodymium and praseodymium salts, used as additives, with the distinctive element of being nitrogen-free and suitable for high-temperature service, designed to extend the useful life of the facilities and processes associated with oil refining and the petrochemical industry.

Organic chlorides are removed from bio-oils, including vegetable oils and animal fats, that are to be coprocessed to meet sustainability goals. The organic chlorides are removed by using active materials such as silica-alumina containing adsorbents. The bio-oils that are targeted for treatment contain greater than 5 ppmw chlorides and are planned for more than 10% of the feedstream that is being processed.

A process for the epoxidation of ethylene, the process comprising: contacting an inlet feed gas comprising ethylene, oxygen and one or more reaction modifiers consisting of organic chlorides with an epoxidation catalyst comprising a support and having silver, rhenium promoters and one or more alkali metal promoters deposited on the support; wherein the inlet feed gas has a total catalyst chloriding effectiveness value (Cleff) represented by formula (I): wherein [MC], [EC], [EDC] and [VC] are the concentrations in ppmv of chloromethane (MC), chloroethane (EC), dichloroethane (EDC) and chloroethylene (VC), respectively, and [CH4], [C2H6] and [C2H4] are the concentrations in mole percent of methane, ethane and ethylene, respectively, in the inlet feed gas; wherein the process is operated at a reaction temperature having a value T1 and with the inlet feed gas having an optimal total catalyst chloriding effectiveness value Cl 3 efficacy value Cl eff1 1, to produce ethylene oxide, wherein the ethylene oxide production parameter is a value EO1; and characterized in that the support is a fluoride mineralized alpha-alumina support, and subsequently operating the process so that at a cumulative ethylene oxide production cumEO x , wherein cumEO x is at least 0.6 kton ethylene oxide / m 3 of catalyst greater than cumEO1, the reaction temperature 5 has an increased value Tx to maintain the ethylene oxide production parameter at a value EO1, while controlling the optimal total catalyst chloriding effectiveness value Cl effx of the inlet feed gas so that the ratio Cl effx / C leff1 is in the range of 0.8 to 1.2.

The present invention provides a supported catalyst containing an Ir / Pd composite oxide for the dehydrogenation of cyclododecanol to ketone, using an Fe-MCM-41 mesoporous molecular sieve as a carrier, with a ZnO layer loaded on the surface of the carrier and an Ir / Pd composite oxide layer loaded on the ZnO layer. The present invention also provides a preparation method and use of the supported catalyst. The present invention also provides a method for the dehydrogenation of cyclododecanol to ketone. The supported catalyst provided by the present invention has excellent organic chloride adsorption capacity and catalytic activity, the service life of the catalyst is significantly extended, and organic chlorides can also be effectively removed from the reaction system, thereby significantly improving the reaction efficiency of the dehydrogenation of cyclododecanol to ketone, reducing the reaction cost, and improving the stability and controllability of the process. The preparation process of the supported catalyst provided by the present invention is simple, without high costs, and is conducive to industrial production, so it has important economic and social value.

The invention relates to a preparation method and application of a metal / metal chloride composite negative electrode material, and belongs to the technical field of chloride ion battery negative electrode materials. The preparation method of the metal / metal chloride composite negative electrode material comprises the following steps: S1, mixing metal powder and corresponding metal chloride according to a certain proportion to obtain a mixture; s2, the mixture and hard alloy balls are mixed and subjected to ball milling for a period of time at a certain rotating speed, and powder is obtained; and S3, pressing the powder into an electrode plate through a cold pressing method to obtain the metal / metal chloride composite negative electrode material. The method is simple in operation process and easy for industrial production; the prepared composite negative electrode material is used for a chloride ion battery, the chlorine doping amount of an organic chloride positive electrode is increased in the charging process by utilizing the rich chlorine of the negative electrode, and the loss of chloride ions in the charging and discharging process is supplemented; the negative electrode prepared by the preparation method has relatively high discharge capacity and excellent cycling stability.

Provided herein are methods of making compositions comprising mixtures of lactones. Also provided herein are mixtures of lactones produced by the methods provided herein. An example lactone composition can include a 5-hydroxy-2-decenoic acid-δ-lactone, a 3,5-dihydroxydecanoic acid-δ-lactone, and sulfur, nitrogen, phosphorus, potassium, magnesium, calcium, sodium, iron, aluminum, silicon, organic chloride, 3,5-dihydroxydecanoic acid, a carbohydrate, free fatty acids, or a combination thereof.

A process is provided for dechlorinating and separating a mixture of n-butane and alkylate. The process includes separating, in a separation zone, a feed stream comprising light hydrocarbons, propane, isobutane, organic chlorides, n-butane, and alkylate with C5+ hydrocarbons into an overheads stream comprising light hydrocarbons, propane, and isobutane and a bottoms stream comprising organic chlorides, n-butane and alkylate; passing the bottoms stream to a catalytic dechlorination zone configured to convert the organic chlorides to HCl and paraffins under catalytic dechlorination conditions, the catalytic dechlorination zone comprising a vessel and being configured to provide a HCl-rich stream, an n-butane-rich stream, optionally an isopentane-rich stream, and an alkylate-rich stream; removing the HCl-rich stream from the catalytic dechlorination zone as a gaseous overheads product; recovering the n-butane-rich stream from the catalytic dechlorination zone as a liquid side-draw product; optionally recovering the isopentane-rich stream from the catalytic dechlorination zone as a side-draw product; and recovering the alkylate-rich stream from the catalytic dechlorination zone as a liquid bottoms product.

The invention relates to the technical field of water and sewage treatment, in particular to a method for removing organic chlorides in wastewater, which comprises the following steps: firstly, regulating the pH value of the wastewater to 4-6 to create a suitable environment for subsequent reaction, then adding an oxidizing agent, preferably using 0.001% of 1% potassium permanganate solution, into the regulated wastewater, uniformly stirring, carrying out primary oxidation, and finally, carrying out secondary oxidation. Then adding a reducing agent which mainly comprises ferrous sulfate and sodium hydrogen sulfite in a molar ratio of 10: 1, further oxidizing and degrading organic chlorides, then adding sodium hydroxide, adjusting the pH value of the wastewater to 9, keeping stirring to decompose unoxidized chlorides into inorganic chlorides, and finally feeding the treated wastewater into a biochemical system for further treatment. According to the method, the organic chloride in the wastewater can be efficiently removed, the reagent is green and safe, the cost is low, the biodegradability of the treated wastewater is good, the wastewater can reach the discharge standard, and the method has remarkable economic and environmental benefits.

The application relates to the field of organic chemistry and specifically discloses a synthesis method of berberine hydrochloride. The synthesis method of the berberine hydrochloride comprises the following steps: S1, bromo-piperonyl ethylamine and o-veratraldehyde are subjected to reductive amination to synthesize an intermediate II; S2, the intermediate II is subjected to Suzuki coupling reaction with an organic boron compound under the catalysis of a palladium metal organic compound to synthesize an intermediate III; S3, the intermediate III is subjected to amino chlorination with an organic chloride to synthesize an intermediate IV; S4, the intermediate IV is subjected to intramolecular atom transfer radical addition and intramolecular Friedel-Crafts alkylation tandem reaction in a mixed solvent under the catalysis of a copper catalyst to synthesize an intermediate V; and S5, the intermediate V is subjected to oxidative aromatization reaction with iodine under the catalysis of a base to synthesize the berberine hydrochloride. The synthesis process is simpler, the reaction condition is easier to control, the yield is high, and the method is suitable for industrial production.

A method is provided for etching a stack beneath a carbon-containing mask, the method comprising multiple cycles, each cycle being a carbon deposition step in which carbon is selectively deposited on the upper surface of the carbon-containing mask, activating the upper surface of the carbon-containing mask by colliding ions with the upper surface of the carbon-containing mask, and a hydrogen source, carbon tetrachloride (CCl4) and C x H y Cl z Flowing a deposit gas containing an organic chloride source selected from at least one of the following (wherein x>0 and z>0), and converting the deposit gas into a plasma, at least one C n Cl m The process includes a carbon deposition step of depositing carbon on a carbon-containing mask by forming radicals or ions of x>0 and z>0 with at least one H radical or ion, and an etching step of etching features within the stack.