125 results about "Ashing" patented technology

The invention belongs to the field of coal quality analysis, and discloses a microwave heating type coal quality on-line analysis device and application thereof.The device comprises an on-line sample collecting and preparing module, a microwave heating module, a weight collecting module and an analysis control module, and the microwave heating module comprises a microwave drying cavity, a microwave devolatilization cavity and a microwave ashing cavity; each chamber is connected with a microwave temperature control unit for independent temperature control; the online sampling and sample preparation module is used for collecting coal from a coal conveying line in real time, crushing the coal into standard coal samples, and feeding the standard coal samples into the corresponding treatment chambers for microwave heating treatment; the microwave ashing cavity is further connected with an oxygen supply unit, and the oxygen supply unit is used for providing an oxygen-enriched environment for the microwave ashing cavity; the weight acquisition module is connected with the analysis control module and is used for acquiring the weight of the standardized coal sample before and after heating; and the analysis control module is used for controlling the microwave temperature control unit to adjust the temperature of the corresponding chamber and obtain various indexes of the standardized coal sample. According to the invention, the efficient and full-automatic microwave heating coal quality online sampling analysis effect can be realized.

The invention discloses a process and equipment for recovering platinum and palladium from a petroleum catalyst, and relates to the field of metal material recovery, carbon-supported platinum group noble metals platinum and palladium are recovered by using the patent technology, firstly, fine grinding, hydrolysis and filtration are performed, then a reducing agent is adopted for reduction, then acidification and filtration are performed to remove base metals, and hydrochloric acid and nitric acid solutions are adopted for leaching and saltpeter removal, so that the platinum and palladium are recovered. The high-purity palladium powder is prepared from the solution subjected to platinum precipitation through ammonium chloride platinum precipitation, ammonium chloroplatinate hydrazine hydrate reduction, high-purity platinum powder and ammonia water palladium precipitation and hydrazine hydrate reduction, the purposes of saving energy and reducing the production cost are achieved, the ashing roasting furnace is adopted for static ashing, the technology process is simplified, the platinum group precious metal recovery rate is high, and the smelting cost is low. And the quality and purity of the platinum-palladium product are high, the metal recovery rate is high, and the smelting cost is low.

The invention discloses application of a hydroxylamine compound cleaning solution. In particular to application of a hydroxylamine compound cleaning solution in cleaning plasma etched and ashed wafers. The hydroxylamine compound cleaning solution is prepared from the following components in percentage by mass: 1 to 30 percent of a hydroxylamine compound, 1 to 5 percent of a corrosion inhibitor, 0.1 to 5 percent of a chelating agent, 0.01 to 5 percent of a nonionic surfactant and 1 to 50 percent of a water-soluble organic solvent and water. The sum of the mass fractions of the components is 100%. The hydroxylamine compound cleaning fluid is safe and environment-friendly, solves the problem of high cost caused by fixed raw material sources, reduces the cost, and is safe and reliable.

The invention discloses a method for detecting the content of carbon black in master batch, which comprises the following steps: S1) weighing the master batch with the mass G into a reaction tube, adding methanol, a cosolvent and a catalyst, sealing, and heating for alcoholysis; s2) taking out the reaction tube, cooling to room temperature, opening a cover, pouring a solution in the reaction tube into filter paper with the mass of W0, flushing the reaction tube with ethanol, pouring the solution into the filter paper to completely transfer the solution, flushing filter residues with hot absolute ethanol, and drying the filter paper with the filter residues, wherein the mass of the dried filter paper and the filter residues is W1; s3) putting the dried filter paper with the filter residues into a crucible with the mass of W2, ashing, transferring the crucible into a muffle furnace, calcining, and weighing the mass of the crucible and the ash content as W3 after the weight is constant; and S4) calculating the carbon black content in the master batch according to the following formula: omega = (W1-W0) / G * 100%-(W3-W2) / G * 100%. According to the method, ash content in the detection result is removed, the accuracy is high, the test repeatability is good, the operation is simple, and the energy consumption in the detection process is low.

The invention relates to a method for recovering valuable components from high-copper and high-iron complex gold extraction broken carbon roasting slag. The method comprises the following steps: grinding and grading: grinding and grading a material to be treated into a fine material with the particle size of-0.074 mm accounting for 70%-80%; flotation decarburization is conducted, specifically, primary roughing is conducted on the fine material slurry, carbon-containing concentrate and tailings are obtained, and the carbon-containing concentrate is returned to an original roasting ashing system to be roasted again to obtain concentrate roasting slag; selective leaching of copper: feeding the tailings and the concentrate roasting slag into an ammonia-chlorine solution for pre-leaching to obtain copper-containing leaching liquid and leaching slag; first-stage preferential leaching is conducted, specifically, the leaching residues are fed into a cyaniding system to be subjected to first-stage preferential leaching, and a gold and silver pregnant solution and first-stage leaching residues are obtained; second-stage intensified leaching is conducted, specifically, the first-stage leaching residues are subjected to second-stage intensified leaching, and gold and silver pregnant solution and second-stage leaching residues are obtained; and recovery of element copper: conveying the copper-containing immersion liquid to a copper recovery system for distillation to obtain ammonia water and a copper hydroxide precipitate. According to the method, efficient comprehensive recovery of gold, silver and copper in the high-copper-iron complex gold extraction broken carbon roasting slag is achieved.

The invention belongs to the technical field of drying, separating and upgrading of coal particles, and particularly relates to a drying, separating and upgrading system for viscous and wet fine coal. Comprising the following steps: vibrating a gas-solid separation fluidized bed, and setting a pulse airflow process of the vibrating gas-solid separation fluidized bed according to physical property parameters of viscous and wet fine coal by taking hot-state magnetite powder as a separation medium; the vibration gas-solid separation fluidized bed is connected with a parameter real-time control system, a pressure sensor monitors density fluctuation of gas-solid suspensions in the vibration gas-solid separation fluidized bed and collision acting force of particles in a bed layer, and the magnetite powder medium bed layer forms a uniform fluidization state under the synergistic effect of pulse airflow and periodic simple harmonic vibration. The drying dehydration and the separation de-ashing of the viscous and wet fine coal in the separation medium are realized, and the quality improvement of the viscous and wet fine coal is realized. The hot magnetite powder is adopted as a separation medium, a suspension fluidization environment suitable for fine coal separation is formed under the action of vibration and pulsating airflow, and drying, separation and quality improvement of the viscous and wet fine coal are achieved.

The invention provides a high-temperature atmosphere firing device for detecting the ash content of high-purity graphite. The high-temperature atmosphere firing device comprises a supporting frame, a heating furnace connected with the supporting frame, a dustproof hearth arranged in the heating furnace, a controllable exhaust chimney, a multi-point temperature detection module, a distributed gas supply module and a control system. Oxygen can be uniformly conveyed into the dustproof hearth from the bottom of the heating furnace through the distributed gas supply module, so that a high-purity graphite sample in the dustproof hearth is in a high-concentration oxygen atmosphere, and intermediate products in reaction are discharged in time through the controllable exhaust chimney, so that the inhibition effect of the intermediate products is reduced; the optimal ashing condition can be established by adjusting the temperature, the oxygen flow, the exhaust speed and the like, so that all the samples are in a rapid burning reaction state, the overall reaction efficiency is improved, the efficient and rapid burning effect is achieved, no-wind-feeling and high-flow oxygen supply of the distributed gas supply module can effectively avoid pollution among the samples, and the service life of the samples is prolonged. And the detection accuracy of the ash content of the high-purity graphite is ensured.

The utility model relates to the technical field of waste treatment, and provides a mixing device for waste incineration pretreatment, which comprises a bottom plate, a mixing mechanism is arranged outside the bottom plate, and the mixing mechanism comprises a pretreatment box and an incinerator which are fixedly connected with the bottom plate. By means of the technical scheme, the viscous hazardous waste can be pretreated so that subsequent incineration can be facilitated, after the viscous hazardous waste enters the pretreatment box, the two first rotating rods rotating in the opposite directions can drive the crushing rollers on the first rotating rods to rotate, the viscous hazardous waste is crushed, and the crushing efficiency of the viscous hazardous waste is improved. The crushed viscous hazardous waste continues to fall, stirring rods on the second rotating rods are driven to rotate through the two second rotating rods rotating in the opposite directions, the crushed viscous hazardous waste is stirred and dispersed, and then the hazardous waste continues to fall to a conveying auger and is conveyed into an incinerator through the conveying auger to be incinerated; and the situation that loose viscous dangerous waste materials flow to the bottom along the furnace wall to cause caking, and the ashing time is prolonged is avoided.

The invention relates to a method for jointly determining plutonium 238, 239 + 240 and neptun-237 in aerosol by taking Pu-236 as a yield tracer agent, which comprises the following steps: step 1, sample pretreatment: cutting an aerosol sample into pieces, adding 236Pu, ashing, and leaching with a nitric acid solution A; step 2, valence state adjustment: adjusting the acidity of the leaching solution, and sequentially adding a hydroxylamine hydrochloride solution, a ferrous sulfamate solution and a sodium nitrite solution to adjust the valence state of nuclide; step 3, separation and purification: separating and purifying by adopting a TEVA resin column, leaching by using a nitric acid solution B and a hydrochloric acid solution, and desorbing by using an HCl-HF solution; and 4, the desorption solution is subjected to electro-deposition to prepare a source, and a low background alpha spectrometer is adopted for measurement of plutonium 238, 239 + 240 and neptun-237. The detection method is high in sensitivity, the recovery rate of the neptun-237 is high, and the blank of joint analysis of plutonium 238, 239 + 240 and neptun-237 is filled.

The invention discloses a method for detecting metal elements in a perfluoropolymer, which comprises the following steps: (1) adding a perfluoropolymer sample into a quartz lining tube for ashing to obtain the quartz lining tube filled with the sample after ashing; (2) adding a digestion solution into the quartz lining tube filled with the ashed sample, and then carrying out microwave digestion to obtain a digested liquid; (3) preparing the digested liquid to obtain a liquid to be detected; and measuring the content of the to-be-measured metal elements in the to-be-measured liquid by adopting an inductively coupled plasma mass spectrometer. According to the method, the high-stability and corrosion-resistant perfluoropolymer sample is subjected to in-situ ash content microwave digestion, then the inductively coupled plasma mass spectrometer is adopted to measure the content of the to-be-measured metal elements in the perfluoropolymer sample, component loss and introduction of new impurities are avoided, and the method has the advantages of being easy and convenient to operate, short in treatment time, more thorough in digestion, high in accuracy and the like. The test precision is high, the range of treatable samples is wide, and samples can be treated in batches.

This invention provides an ashing method for organochromium catalysts, comprising the following steps: a mixture of an ashing aid and the organochromium catalyst is reacted in a sealed oxygen-containing atmosphere under the synergistic effect of microwaves and high frequency, with the temperature programmed to <350°C, to completely ashing the organic matter in the organochromium catalyst; wherein the ashing aid is selected from nitrates; and the reaction pressure is less than 20.0 MPa. This invention, by ashing under the combined action of an ashing aid and high frequency with microwaves, effectively and completely removes organic matter from organochromium catalysts at low temperatures. This method overcomes the shortcomings of existing organochromium catalysts, which suffer from volatilization losses during conventional ashing or wet digestion treatments. It offers advantages such as a wide range of sample amounts, high accuracy, and suitability for the analysis and detection of chromium and other elements in different organochromium catalysts.

The present invention discloses a method for predicting the dynamic fouling and slagging tendency of biomass ash based on the change of ashing temperature, which relates to the technical field of predicting biomass ash fouling and slagging, and includes: determining the sintering rate and sintering characteristic index of biomass ash at different temperatures; determining the melting characteristic temperature and melting characteristic index of biomass ash at different temperatures; determining the fixed-phase fouling and slagging index and volatile-phase fouling and slagging index during the ashing process of biomass ash at different temperatures; and determining the comprehensive fouling and slagging tendency of biomass ash. The beneficial effect of the present invention is that, based on the change rules of the melting characteristic index and ash sintering rate of biomass ash at different ashing temperatures, and simultaneously considering the distribution and allocation rules of alkali metal components in the fixed phase and volatile phase during the fouling and slagging process of biomass ash, it makes up for the deficiency of ignoring the melting characteristics and sintering characteristics of biomass ash in the prior art, and improves the accuracy and reliability of the prediction results of the dynamic fouling and slagging tendency of biomass ash at different ashing temperatures.

The present invention addresses the problem of obtaining a cured product which has excellent diluent solubility and in which the contact resistance of an electrode after ashing is suppressed to be low. A resin composition containing the following components (a) to (c), the component (a) having a diamine residue represented by formula (1) in an amount of from 1 mol% to 80 mol% (inclusive) with respect to 100 mol% of all diamine residues contained in the skeleton of the resin of the component (a), and the component (c) having a diamine residue represented by formula (2) in an amount of from 1 mol% to 80 mol% (inclusive) with respect to 100 mol% of all diamine residues contained in the skeleton of the resin of the component (a). Component (a): at least one resin selected from the group consisting of polyimide precursors, polyimides, polybenzoxazole precursors, polybenzoxazoles, and copolymers thereof Component (b): a photosensitizer. Component (c): a solvent (in formula (1), R1-R8 each independently represent an alkyl group having 1-4 carbon atoms or a hydrogen atom, X each independently represents-CH2-,-C (CH3) 2-,-O-,-S-,-SO2-or a single bond, and p, q, r and s each independently represent an integer of 0 or 1 and represent a bonded part).

The utility model relates to an incineration closestool which comprises a sewage receiving cavity, an incineration cavity and an ash receiving cavity which are arranged on a closestool body. A sewage inlet and an ash outlet are formed in the incineration cavity, the sewage receiving cavity in the open state communicates with the incineration cavity through the sewage inlet, and the incineration cavity in the open state communicates with the ash receiving cavity through the ash outlet; a magnetic heating part and an electromagnetic coil are arranged on the incineration cavity and correspond to each other, and a magnetic field generated by electrifying the electromagnetic coil enables the magnetic heating part to generate high temperature for incinerating excrement. According to the incineration closestool, excrement is heated and incinerated in an electromagnetic heating mode, the incineration area and the ashing matter collecting area are separated from each other, and therefore the incineration closestool has the advantages of being high in heating efficiency, low in energy consumption, easy and convenient to use and the like.

The present invention belongs to the technical field of sodium ion batteries, and specifically relates to a preparation method and application of a hard carbon negative electrode material for sodium ion batteries. First, agricultural solid waste powder and oxidized asphalt are evenly mixed and then carbonized at high temperature, then crushed by wheel milling, and sieved by ultrasonic vibration screen; then a substance containing a boron-containing alkali metal compound is added for ashing, and dilute hydrochloric acid is added to the ashing product as a modifier for reaction, and then washed, filtered, and dried to obtain the final product. Adding oxidized asphalt during high-temperature carbonization can improve the initial efficiency, and using wheel milling for crushing has little damage to the structure of the hard carbon negative electrode. The carbonized material is ashed with a boron-containing alkali metal compound and then treated with dilute hydrochloric acid. The addition of the boron-containing alkali metal compound can not only reduce the ash content in the hard carbon negative electrode but also improve its rate performance. The above technical means are used to prepare a sodium ion battery hard carbon negative electrode material with good electrical properties.

This invention relates to the field of substrate glass manufacturing and testing technology, and provides a method for testing the performance of spacer paper for substrate glass. The method includes: in a constant temperature and humidity clean environment, processing the testing equipment to constant weight; mixing and sampling multiple units of the spacer paper sample, and then transferring the samples to a constant-weight testing equipment for weighing; drying the samples at 105±2℃ to constant weight, and calculating the moisture content based on the mass difference before and after drying; and igniting the samples at 900±25℃ until completely ashed, and calculating the ash content based on the mass difference before and after ignition. This invention, through constant temperature and humidity operation and multi-unit mixed sampling, eliminates environmental interference and sampling bias, achieving continuous and accurate testing of moisture and ash content, and significantly improving the accuracy and repeatability of the test results.

The utility model discloses a filtering protection structure of a fire-fighting smoke exhaust fan, which relates to the technical field of smoke exhaust fans, and comprises a protection cylinder, a fixing frame is arranged in the protection cylinder, a fan assembly is arranged in the fixing frame, a metal wire mesh is detachably connected to the inner wall of one side of the protection cylinder, and the inner wall of the other side of the protection cylinder is provided with an air inlet. A first fixing ring is fixedly installed at one end of the protection cylinder, a second fixing ring is detachably connected to the outer surface of the first fixing ring, and through cooperation between a metal wire mesh and a rotating plate, when the smoke exhaust fan is started, the metal wire mesh can reduce combustible ashing substances sucked into the pipeline; when the smoke exhaust fan is started, the rotating plate can be opened under the action of wind power and opened to the maximum angle under the action of wind power, at the moment, smoke can be normally exhausted, the service life of the smoke exhaust fan is not prone to being affected by the outside, the function of filtering and protecting the smoke exhaust fan is achieved, and the service life of the smoke exhaust fan is prolonged.

This invention discloses a method for determining the chemical composition of calcium carbide slag. The method first removes the moisture by ashing the calcium carbide slag, then digests it with concentrated nitric acid and hydrofluoric acid, followed by digestion with saturated boric acid. Finally, based on a standard solution, the concentration of each component is obtained by comparing the test solution and the blank solution, and then converted into the content of oxides. The experimental results show that the recovery rate of calcium oxide is over 96%, and the accuracy and precision meet the standard requirements.

The invention provides an ashing waste precious metal powder recovery device and a recovery method thereof, and relates to the technical field of precious metal powder industrial recovery. The recovery device comprises a waste conveying and feeding system, an air blower, a two-section type combustion ashing furnace, a tail gas absorption system, acid leaching gold dissolving equipment, a solid-liquid separator, powder reduction equipment and the like. According to the recovery method, a two-section ashing oxygen-controlled combustion strategy is adopted, efficient recovery of gold, silver, platinum and other precious metal products in wiping cloth, fiber filter materials, gloves and other ashing waste generated in the production process of precious metal powder and slurry is achieved, and meanwhile the industrial solid waste treatment problem is solved.

The invention relates to a radioactive combustible solid waste treatment device and method. The device comprises a gasification furnace, an air mixing system, a flue gas recirculation system, a steam mixing system, a combustion furnace and a stored ash ashing device. Materials are subjected to various reactions in the gasification furnace to form gas products, liquid tar and solid residues (bottom ash), the gas products enter the combustion furnace to be fully combusted, in the process, flue gas mixed with water vapor is introduced into the gasification furnace from the position below a fire grate of the gasification furnace, a material layer and a pyrolysis gas layer through a flue gas recirculation system, and the gas products are fully combusted. The water vapor source comprises two parts, namely water vapor generated by combustion of pyrolysis gas in the combustion furnace and water vapor supplied from the outside. After the water vapor enters the cracking gasifier, the water vapor and coke are subjected to water gas reaction on a coke burning layer, so that the waste treatment effect is further improved; the cracking layer participates in the material cracking process, so that the cracking rate is increased, further cracking of macromolecular products is promoted, and generation of heavy tar is reduced.

The invention relates to a pipe and a method for manufacturing the same. A tube formed from a molding material which contains a fluororesin having melt processability and which has a metal content of 40 ng / 1 g or less as measured by ashing, a Na content of less than 1 ng / 1 g as measured by ashing, and a K content of less than 1 ng / 1 g as measured by ashing, the fluororesin is at least one type selected from the group consisting of tetrafluoroethylene / perfluoro (alkyl vinyl ether) copolymers and tetrafluoroethylene / hexafluoropropylene copolymers, and the melt flow rate of the fluororesin is 1 g / 10 minutes to 6 g / 10 minutes.

The invention discloses an AI improvement method for coal ash content detection based on a laser firing method, which comprises the following steps of: identifying whether a coal sample fired by laser is coked or not and the non-ashing ratio of the coal sample when the coal sample is not coked by utilizing a special multi-mode large model obtained by training and a picture of the coal sample fired by the laser; and outputting a corresponding text description, inputting the coal sample non-ashing proportion which does not reach or exceed a threshold value and is output by the special multi-mode large model into a programmed ash content calculation model Aad = (m2-m1 * a%) / (m1-m1 * a%), and calculating to obtain the ash content. The method solves the problem of low ash content determination precision of the existing laser firing method for detecting the ash content, and has the advantages of high detection speed, high precision and the like.

The invention relates to the field of analytical chemistry and material testing, and mainly relates to a silicon dioxide determination method resistant to organic silicon matrix interference. The invention relates to an organosilicon matrix interference-resistant silicon dioxide determination method, which comprises: introducing an inert atmosphere, and removing oxygen; in the inert atmosphere environment, the temperature of the sample is gradually increased to 500-850 DEG C for treatment; the atmosphere is switched from the inert atmosphere to the oxidizing atmosphere, and treatment continues to be conducted at the temperature of 500-850 DEG C; and cooling and weighing to obtain the final residual mass percentage, namely the percentage of the added silicon dioxide in the sample. According to the application, through an innovative'inert pyrolysis-oxidation sweeping 'procedure, the principle defect that an organic matrix is misjudged as functional silicon dioxide by a traditional muffle furnace ashing method is fundamentally overcome.

The invention discloses a reworking method of a CIS wafer, and the method comprises the steps: firstly carrying out the pretreatment of an exposed photoresist layer on the surface of the to-be-reworked CIS wafer through employing a fluoroalcohol compound solution, can effectively prevent the surface of the photoresist layer from forming a compact carbonization layer in a subsequent ashing process, and facilitates the improvement of the etching efficiency and the etching effect; and then the pre-treated exposed photoresist layer is sequentially ashed, soaked, stripped and cleaned, so that the exposed photoresist layer on the surface of the CIS wafer can be quickly and completely removed, and pollutants generated in the treatment process can be effectively removed while the CIS wafer is effectively protected. The method has the advantages of being simple in process, convenient to operate, low in cost, high in removal efficiency, good in removal effect, small in damage to the CIS wafer and the like, improvement of the remanufacturing efficiency and the remanufacturing effect of the CIS wafer is facilitated, market competitiveness of products can be improved while product defects are reduced, the yield is increased and the cost is reduced, and the method is high in use value and good in application prospect.

The invention relates to a preparation method of an anti-fracturing electrolytic rolled copper foil, which comprises the following steps: (1) adding an additive into a copper sulfate electrolyte, and electrolyzing to obtain a copper foil; wherein the additive is polyethylene glycol 1000; (2) putting the copper foil obtained in the step (1) into a bell furnace for high-low temperature circulating heat treatment, and taking out the copper foil after the copper foil is cooled to room temperature; (3) carrying out multi-pass finish rolling on the copper foil obtained in the step (2); and (4) the finish-rolled copper foil is sequentially subjected to degreasing treatment to remove oil stains on the surface, pure water washing, acid pickling to remove surface oxides, roughening growth of copper nodules, solidification and fixation of the copper nodules, blackening nickel plating, ashing zinc plating, passivation chromium plating and surface silane coupling agent coating treatment, and the anti-fracturing electrolytic rolled copper foil is obtained. The technical problem that in the prior art, rolling treatment is conducted after a grain refining mode is adopted in the electrolysis process, and pressing cracking is likely to happen when rolling is conducted is solved.

The invention relates to a testing method for measuring the content of metal elements in a chlorinated butyl rubber plug, and belongs to the technical field of chlorinated butyl rubber plug testing. Comprising the following steps: S1, cutting a rubber plug into pieces, S2, adding concentrated sulfuric acid, S3, putting the rubber plug into a muffle furnace, S4, setting the temperature of the muffle furnace, S5, heating and cooling the muffle furnace, S6, observing an ashing state, S7, carrying out secondary ashing, S8, transferring a sample to a constant volume, S9, transferring the sample to a constant volume, and S10, carrying out measurement on a machine. Volatile metal chlorides and oxides are converted into sulfates with stable chemical properties by concentrated sulfuric acid, and the sulfates are not volatile or decomposed even at the high temperature of 600 DEG C, so that the total amount of metal elements is completely locked; according to the present invention, the accurate ashing at 600 DEG C can completely remove the organic matrix, the interference of the organic matter is avoided, the loss of the metal element is ensured, the determination value of the same standard rubber sample is 0.048-0.052 mg / kg, and the accuracy is significantly improved.

[Problem] The present invention addresses the problem of providing a molded body which can be used as a tube for transferring a high purity chemical agent. [Solution] The present invention provides a molded body which comprises a liquid contact layer (A) having a liquid contact surface, and a liquid non-contact layer (B) having a liquid non-contact surface, wherein: the liquid contact layer (A) contains a tetrafluoroethylene / fluoroalkyl vinyl ether copolymer (a), and the total amount of Na, Mg, K, Ca, and Fe dissolved into hydrofluoric acid from the liquid contact layer (A) is 10 ng / cm2 or less; and the liquid non-contact layer (B) contains a tetrafluoroethylene / fluoroalkyl vinyl ether copolymer (b), and the total metal content of Na, Mg, K, Ca, and Fe in the liquid non-contact layer (B) measured by an ashing method is higher than the total metal content of Na, Mg, K, Ca, and Fe in the liquid contact layer (A) measured by the ashing method.

The invention relates to the technical field of detection and enrichment of minerals in coal, and particularly provides a coal sample ashing degree control method and system based on a laser Raman spectrum. The method comprises the following steps: acquiring a laser Raman spectrogram of a coal sample in real time in an ashing process of the coal sample; determining ashing process characterization parameters of the coal sample based on the laser Raman spectrogram; turning over the coal sample based on a comparison result of the ashing process characterization parameter and the dynamically adjusted trigger threshold value; when it is judged that the ashing process characterization parameter reaches the preset completion standard, an ashing completion signal is output. The system comprises a coal sample ashing unit, a laser Raman instrument and a controller. The ashing unit comprises a sample bin, a coal sample bearing piece and a vibration device coupled with the coal sample bearing piece. An optical probe of the laser Raman instrument penetrates through the bin wall, and a light path of the optical probe is aligned with the sample area. And the controller is electrically connected with the laser Raman instrument, the vibration device and the sample bin. Therefore, closed loop of real-time monitoring, automatic judgment and automatic execution is realized, the necessity of manual intervention is thoroughly eliminated, the automation of the whole process is realized, the ashing efficiency can be improved, and the analysis of minerals and key metals can be realized.

The present invention relates to an injection molded product, which is an injection molded product containing a thermoplastic resin and a fibrous filler, wherein the thermoplastic resin contains at least one selected from the group consisting of polypropylene and liquid crystalline polyester in an amount of 10% by mass or more relative to the total amount of the thermoplastic resin, the proportion of the fibrous filler having a fiber length of 1 mm or less in the injection molded product is 40% by mass or less relative to the total amount of the fibrous filler, and through a specific ashing test, the longitudinal-transverse plane area of ​​the test piece after ashing is 3.5 times or more relative to the longitudinal-transverse plane area of ​​the test piece before ashing.

A method for forming features on a wafer using a carbon-based deposit is provided. The carbon-based deposit is preconditioned, wherein the preconditioning results in non-uniform removal of some of the carbon-based deposit. An oxide deposit of a silicon oxide-based material is deposited by an atomic layer deposition process, wherein the depositing of the oxide deposit results in non-uniform removal of some of the carbon-based deposit that is complementary to the non-uniform removal of some of the carbon-based deposit caused by the preconditioning.