84 results about "Chloride levels" patented technology

A method of synthesising gallium or indium alkoxide from the corresponding gallium or indium halide, the method comprising the step of reacting the gallium or indium metal halide with the alkoxide of an alkali earth metal, to produce the desired metal alkoxide essentially free of chlorine contamination. The method provides a composition comprising a solution of gallium or indium alkoxide of high purity, the composition having a chloride content of less than 30 ppm, a barium or strontium content of less than 30 ppm, and a sodium or potassium content of less than 30 ppm, without requiring any additional steps.

A process for preparing a dehydrogenation catalyst comprising preparing a mixture comprising a treated regenerator iron oxide and at least one additional catalyst component; and calcining the mixture wherein the treated regenerator iron oxide is prepared by washing a regenerator iron oxide at a temperature below 350° C. such that the treated regenerator iron oxide has a chloride content of at most 500 ppmw relative to the weight of iron oxide, calculated as Fe₂O₃; the catalyst prepared by this process and the use of the catalyst in a dehydrogenation process.

Methods and products for the attenuation or treatment of pain and the reduction of nociception are described. The methods and products are based on the modulation of CNS intracellular chloride levels. The methods and products may also relate to modulation of the activity and/or expression of a chloride transporter, such as the KCC2 potassium-chloride cotransporter. Also described herein are commercial packages and uses based on such modulation. Related methods for identifying or characterizing a compound for the treatment of pain, the reduction of nociception and the diagnosis and prognostication of pain are also described.

A feed supplement for increasing the plasma amino acid level of animals, including animal feed and liquid lysine base, where the liquid lysine base has a concentration between about 45% and about 55%, and has a pH level of between about 9.5 and about 10.5, a chloride content between about 0.10% and about 0.15%, a bulk density of between about 1.14 and about 1.17 g/cm³, and a maximum moisture level of between about 42% and about 48%. The animal feed may either be dry feed, liquid feed, drinking water or milk replacers, or a combination thereof. The present invention also includes a method of increasing the plasma amino acid level of animals, including the steps of providing animal feed, and supplementing the animal feed with an amino acid supplement comprising liquid lysine base having a concentration between about 45% and about 55%, and having a pH level of between about 9.5 and about 10.5.

The invention provides a method and an apparatus for dynamically and safely determining corrosive defects inside a conveying pipeline. The method comprises the following steps: acquiring a corrosion expansion rate of a conventional metal material for a conveying pipeline under different CO2 partial pressure, H2S partial pressure, chloride contents and different stress levels; establishing a mathematic model of the corrosion expansion rate by utilizing a self-adaptive neural-fuzzy inference system according to the acquired corrosion expansion rate; acquiring the CO2 partial pressure, a H2S content, the chloride content and the stress level of a pipe section at which a corroded portion of the pipeline is located, and predicting the corrosion expansion rate according to the established mathematic model; and establishing a pipeline limit-state equation, and acquiring a safety state of the pipeline. The invention also provides the apparatus for dynamically and safely determining the corrosion defects inside the conveying pipeline. By adopting the method and the apparatus for dynamically and safely determining the corrosion defects inside the conveying pipeline, the problem that the safety state of the oil-gas conveying pipeline containing the corrosion defects is difficult to determine dynamically and accurately can be solved.

The invention relates to a snowmelt agent, which is a composite snowmelt agent and comprises the following components and contents (weight) in percentage by weight: 80 to 95 percent of acetate and 5 to 20 percent of chloride. Compared with the prior art, the snowmelt agent has good snow removing effect and low chloride content, can reduce the corrosivity of the snowmelt agent obviously, effectively protects pavement and bridges, prolongs the service life of public facilities and reduces the cost while achieving excellent snow removing effect.

A process for preparing sodium chlorite includes such steps as dissolving hydrogen peroxide and solid sodium chlorate in water, adding the resultant solution along with sulfuric acid to a ClO2 generator to generate the mixture of ClO2 and oxygen, loading the mixed absorbing liquid containing sodium hydroxide and hydrogen peroxide into an absorbing tower, adding ClO2 to the absorbing tower while escaping oxygen, and finally generating sodium chlorite. Its advantages are high output rate (more than 95%) and high purity (more than 95%) of product.

The invention discloses a method for refining crude glycerol as a byproduct generated in the high-pressure hydrolysis of grease. The method comprises the following steps of (a) firstly introducing crude glycerin containing high-pressure hydrolysis byproduct of grease into a thermostatic water bath and then heating to 50-70 DEG C, adjusting pH to 3-4 with hydrochloric acid, and then standing; (2) after standing is completed, removing an upper layer of grease, adjusting pH to 5-6.5 by adding soda ash, then adding sodium metaaluminate, adding a flocculant after a large amount of flocculate is generated, stirring for 5-30 minutes and filtering; and (3) enabling the filtered high-pressure hydrolysis byproduct of grease to sequentially pass through a chromatographic column filled with a cation exchange resin, an anion exchange resin and a cation-anion exchange resin to obtain a purified glycerol. The method for refining crude glycerol as a byproduct generated in the high-pressure hydrolysis of grease is clean and green, the energy consumption of the distillation and rectification section can be reduced and the risk of excessive chloride content in glycerol caused by the liquid-foam entrainment in the distillation process can be reduced.

A method for manufacturing of iron- respectively micro-alloyed steel powders, starting from fluffy spray roasted iron oxides exhibiting a specific surface area in excess of 2.0 m²/g and residual chloride contents over 440 ppm Cl′, decrease the chloride content in two steps to less than 100 ppm, the specific surface area (BET) of to a pre-selected value of less than 10.0 m²/g, preferably between 0.1 and 2.0 m²/g and reduce the pre-sintered granules exhibiting a bulk density in excess of 1.200 g/dm³.

Method for recovering and re-utilizing refused copper etching agent containing ammonia-soda from metal aluminum is carried out by controlling process parameter by control channel and removing copper by one or multiple independent reactive kettle with aluminum. The process parameter consists of temperature, copper concentration, pH value, specific weight, ammonia capacity, chloride content and circulating speed. The reactive kettles could be series, paralleled or mixed arranged and have independent filter with solid reactant selectively.

The invention relates to a method for preparing a stabilizing agent for an antifreeze, in particular to a method for preparing a stabilizing agent for a silicon antifreeze, and belongs to the technical field of organic synthesis. The preparation method comprises the following steps: adopting a phase transfer catalyst as a catalyst accelerator to accelerate the reaction of halogenated silane and organic phosphonate, and removing chloride contents in a residual product through nitrogen and flash evaporation. The method has the advantages that the method can effectively improve the selectivity and yield of the reaction under the proper temperature, mainly can effectively reduce the content of chlorine hydride in the product to obtain the stabilizing agent applicable to the silicon antifreeze, and has high yield; and the purity of the obtained stabilizing agent for the silicon antifreeze is not less than 76 percent per mole.

The invention relates to a method for detecting the content of chloride in water. The method comprises the following steps: heating a to-be-detected sample when the pH value is 8-9, continuing to regulate the pH value to be 2-6, and heating; adding hydrogen peroxide into the sample, and heating; regulating the pH value to be 2-3 after the sample is cooled to room temperature, and performing potentiometric titration with a silver nitrate standard solution; and calculating the content of chloride in the to-be-detected sample according to the volume of the consumed silver nitrate standard solution when the titration destination is reached. The method is applicable to detection of content of chloride in high-sulfur condensate of a refining device, fills up the blank that high-sulfur condensate of the refining device cannot be accurately detected, and provides more accurate reference basis for regulating anti-corrosion measure of the device, so that a preventive anti-corrosion measure is adopted, and potential corrosion hazard of the equipment can be found and eliminated; and a certain reference effect is achieved for detecting corrosion of chloride in condensate of similar devices in China.

A method for recovering one or more of copper, uranium and a precious metal from an ore material, including: (a) forming a heap of the ore material; (b) during active heap irrigation, contacting the heap of the ore material with an iron containing acidic leach liquor having a high chloride content in the presence of an oxygen containing gas, and producing a pregnant leach solution; and (c) recovering one or more of copper, uranium and a precious metal from the pregnant leach solution.

A process for reducing a chloride content of a hydrocarbon feed stream involving contacting a hydrocarbon feed stream comprising a chloride containing pyrolysis oil obtained by cracking a chloride containing thermoplastic material with a sulfided catalyst comprising at least one of Co, Mo, and Ni or a catalyst comprising Pd, Pt, Cu, and/or Zn on a catalyst support in the presence of hydrogen gas to reduce one or more organic chloride compounds present in the hydrocarbon feed stream and form a hydrocarbon product stream and HCl. The HCl is removed from the hydrocarbon product stream, wherein the hydrocarbon product stream has a lower chloride content than the hydrocarbon feed stream based on the total weight of the chloride and the total weight of the hydrocarbon feed stream.