16 results about "Ashing" patented technology

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.

1. Name of the product in this design: Microwave Vertical Ashing Oven. 2. Purpose of this design: To perform high-temperature ashing treatment on various solid samples. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

This invention belongs to the technical field of impurity element determination in polyacrylonitrile-based precursor fibers. It discloses a method for detecting impurity elements in polyacrylonitrile-based precursor fibers. The method involves removing organic matter by calcination of the sample, followed by high-temperature calcination and ashing. The resulting ashing residue is treated with hydrochloric acid solution to obtain a sample solution. The content of impurity elements is then determined using an atomic absorption spectrophotometer. This invention differs from traditional methods that directly calcine and ashed the precursor fiber sample at high temperatures. By removing organic matter beforehand, the combustion process during subsequent high-temperature calcination and ashing is more stable compared to traditional methods. Simultaneously, the gas generated during sample calcination is eliminated, reducing the possibility of gas accumulation and preventing the loss of impurity elements from the sample due to gas scouring, adhesion, or chemical reactions. This results in more accurate analytical results and a safer experimental process.

The present application relates to a kind of methods for improving the heat resistance of reverse copper foil, comprising: blackening process, ashing process, passivation process in the preparation process of reverse copper foil are carried out under acidic conditions;Wherein, blackening process is carried out in the electroplating solution A containing nickel ion, hypophosphorous acid ion, boric acid electroplating nickel;Ashing process is carried out in the electroplating solution B containing zinc ion, boric acid electroplating zinc;Passivation process is carried out in the electroplating solution C containing chromium ion, hypophosphorous acid ion, boric acid electroplating chromium.The present application is obtained under the combination of acidic blackening process, acidic ashing process, acidic passivation process, and the reverse electrolytic copper foil can meet the requirements of stripping strength and can meet the heat stability (small heat attenuation), solve the problem that conventional reverse electrolytic copper foil cannot meet the requirements of stripping strength while having good heat stability.

The present application relates to fragile ore roasting shaft kiln technical field, and disclose a kind of quick ashing fragile ore roasting shaft kiln, including shaft kiln body, one side of the shaft kiln body is fixedly installed with combustion chamber, one side of the combustion chamber is fixedly installed with burner;The present application is equipped with quantitative ashing mechanism, when limestone enters shaft kiln body, it is under the support of guide plate and precast beam, be cut off in the part of upper end inside shaft kiln body, at the same time, start burner and burn to produce hot gas, hot gas will pass through hot flue gas outlet into shaft kiln body and carry out calcination to limestone on guide plate, when reaction complete limestone will burst or shrink into powder, these powder can pass through the gap between guide plate and shaft kiln body and move downward, finally fall into hopper, when reaching the set value of material level meter, solenoid valve will be automatically opened, powder can be discharged, avoid overburning phenomenon.

This application provides a method for phase analysis of manganese in ores, belonging to the field of phase analysis of ores. The method involves weighing an ore sample and sequentially leaching it with silver nitrate solution to separate the manganese sulfate phase; then leaching it with aluminum nitrate solution under heating, adding a mixed solution of isoamyl alcohol and isoamyl acetate as a first inhibitor to separate the manganese carbonate phase; followed by stepwise leaching with sulfurous acid solution and hydroxylamine sulfate-sulfuric acid solution, adding a mixed solution of n-butanol and ethyl acetate as a second inhibitor to separate the manganese oxide phase; and finally, the remaining residue is digested by ashing to obtain the silicate phase. The manganese content of each phase digest is determined by inductively coupled plasma atomic emission spectrometry (ICP-AES). This application rationally selects various possible forms of manganese in the ore and scientifically selects the leaching agent for each phase, ensuring that the leaching agent of the previous phase does not leach manganese from the subsequent phases, thus guaranteeing accurate determination of each phase.

The present application provides a kind of detection method of ash in asphalt.The detection method includes: step S1: raw materials including asphalt and dispersant are heated and mixed in sequence to obtain melt;Step S2: melt is crystallized to obtain asphaltene crystal;Crystallization treatment includes temperature drop and isothermal crystallization treatment in sequence;The temperature drop rate of temperature drop is ≤5℃ / min;Step S3: asphaltene crystal is phase separated to obtain crystalline phase;Step S4: crystalline phase is ashed to obtain ash;The temperature of ashing treatment is ≤200℃;Step S5: ash is detected to obtain the composition and mass content of ash.The detection method of the present application can realize efficient enrichment of ash and very low background interference, can detect most of the trace metal elements in ash, and has good accuracy and repeatability, thereby better meeting the quantitative detection needs of high-quality asphalt for very low ash content.

1. The name of the design product: microwave oven. 2. The use of the design product: used for high temperature synthesis, sintering, ashing, melting and heat treatment of various solid materials. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The present application belongs to the technical field of element analysis, and provides a detection method for measuring gallium, vanadium and phosphorus in coal and gangue, which adopts an HNO3-H2SO4-HF-H2O2 oxidation digestion system, can effectively remove organic matter in the coal and gangue samples and can completely digest silicon-containing minerals, and uses hydrochloric acid as a medium to resuspend the sample, prepare a sample solution to be measured, and establish an analysis method for measuring vanadium, phosphorus and gallium based on an acid dissolution and oxidation method pretreatment technology ICP-AES method. The method eliminates the ashing step of the coal sample in the traditional process, avoids the loss of volatile elements in the ashing process, effectively solves the problem that the above-mentioned three elements in the coal and gangue cannot be simultaneously pretreated and measured, simplifies the analysis process, improves the analysis efficiency, is convenient for data comparison, and is suitable for batch sample analysis with complex matrix and wide content range.

This application provides a fire assay method for determining the gold content in gold-containing resin, belonging to the field of precious metal analysis and detection technology. Before fire assay analysis, the gold-containing resin is immersed in anhydrous ethanol. The anhydrous ethanol disrupts the cohesive force of the gold-containing resin, preventing splattering during the roasting stage. After immersion, the resin is transferred to a ceramic boat for staged roasting to ashing, eliminating the influence of particulate carbon on the subsequent fire assay analysis. Finally, the roasted resin is transferred to a clay crucible, where sodium carbonate, borax, lead oxide, silicon dioxide, and flour are added and stirred thoroughly. A covering agent is then applied, followed by melting, ash blowing, and gold separation to determine the gold content in the resin. This method achieves rapid and accurate determination of the gold content in gold-containing resin, improving the accuracy and stability of the detection results.

This application relates to a method for detecting the metal content in fluororubber, comprising the following steps: S1: subjecting a fluororubber sample to a first carbonization treatment and a second ashing treatment in a muffle furnace to obtain a treated fluororubber sample; S2: adding acid to the sample treated in step S1 to obtain a metal solution to be tested; S3: detecting the metal content in the metal solution to be tested using inductively coupled plasma atomic emission spectrometry (ICP-AES). This application completely burns the fluororubber using a muffle furnace ashing method, then dissolves the metal in the fluororubber by heating with nitric acid solution. The concentration of the metal element in the treated sample is then determined using an ICP-AES instrument, solving the problem of insufficient extraction of metal elements in sparingly soluble fluororubber and improving the quantitative accuracy.

We provide highly reliable liquid dispensing heads. [Solution] A method for manufacturing a liquid discharge head composed of a first channel substrate 107 and a second channel substrate 113, comprising: (a) a first substrate preparation step of providing an energy generating element 102 on the first surface 103a to form a first channel 116; (b) a second substrate preparation step of forming a second channel 115; (c) a first film formation step of forming a first protective film 108; (d) a first ashing step of ashing the second surface 107b; (e) a second film formation step of forming a second protective film 109 covering the second surface 107b; (f) a bonding step of joining the first channel substrate 107 and the second channel substrate 113; (g) a second ashing step of ashing the first surface 107a; and (h) a hydrofluoric acid treatment step of treating the first surface 107a with hydrofluoric acid, wherein the second film formation step, bonding step, second ashing step, and hydrofluoric acid treatment step are carried out in this order.

The utility model relates to a system of valuable component recovery from high copper iron complex gold extraction carbon calcination slag, including ball mill, the discharge outlet of ball mill is connected with the feed inlet of hydrocyclone through the ore pulp pump, the sand trap of hydrocyclone is connected with the feed inlet of ball mill, the overflow of hydrocyclone is connected with the feed inlet of flotation system, the concentrate of flotation system is connected with calcination ash system, the tailing of flotation system and the slag outlet of calcination ash system are connected with copper leaching tank, and copper leaching tank is connected with copper recovery system and 1# cyanide leaching tank respectively through 1# filter, and 1# cyanide leaching tank outlet is connected with 2# filter, 2# cyanide leaching tank and 3# filter in proper order. The utility model is cleverly combined with the equipment such as grinding classification closed circuit system, flotation system, copper leaching tank, two stage cyanide leaching and copper recovery system, and the efficient comprehensive recovery of gold, silver and copper in high copper iron complex gold extraction carbon calcination slag is realized.

This invention relates to a rapid, pretreatment-free detection method for breathable free silica on membranes based on FTIR transmission spectroscopy, belonging to the field of dust monitoring. This method establishes the RCS quality within a 5.78 mm spot diameter and the relationship between the RCS and the 800 cm⁻¹ area. ‑ ¹Standard algorithm for characteristic absorption peaks; targeting kaolinite, the most abundant interfering mineral in coal mine dust, utilizing its 915 cm⁻¹ peak... ‑ ¹The absorption peak was established at 800 cm⁻¹ ‑ ¹ An algorithm for subtracting interference. To address the non-uniform distribution of respirable dust deposited on the filter membrane surface, a piecewise function non-uniform distribution model was constructed. Based on this, a rapid algorithm was proposed that can calculate the total RCS mass of the entire filter membrane using only 10 key measurement points. The entire detection process of this invention eliminates the need for pretreatment steps such as strong acid digestion and high-temperature ashing, shortening the single detection cycle to less than 10 minutes, providing a practical and feasible technical approach for rapid on-site RCS detection in the workplace.

This invention relates to a high-temperature resistant self-cleaning ashing chamber and document destruction equipment for document destruction, specifically relating to the field of document destruction technology. The chamber includes: a chamber; the interior of the chamber is formed by i-level baffles to create a serpentine flow channel, where i ≥ 1; the plane of the baffles intersects with the plane of the chamber's bottom plate; at least one heating device is installed on the wall of the serpentine flow channel; the heating device is equipped with a combustion-supporting gas inlet; and the beginning and end of the serpentine flow channel are respectively equipped with a flue gas inlet and a flue gas outlet. The high-temperature resistant self-cleaning ashing chamber for document destruction provided by this invention, through the design of the airflow channel, allows for the complete combustion and oxidation of incomplete combustion products, while simultaneously allowing fly ash to be discharged with the airflow. Under certain airflow conditions, it can self-clean, preventing fly ash from depositing on the baffles, i.e., it is non-stick.