5 results about "Magnesium sulfite" patented technology

The utility model provides a desulfurized magnesium sulfite slurry cyclone. The desulfurized magnesium sulfite slurry cyclone comprises: a cyclone; the installation head is fixedly connected to the position, located at the top end, of the outer surface of the cyclone, one end of the installation head is fixedly connected with a feeding pipe, the other end of the feeding pipe is provided with a connecting pipe through a connecting disc, the other end of the connecting pipe is fixedly connected with a filtering pipe with a sealing cover, and the filtering pipe is fixedly connected with the cyclone. A filter plate is mounted in the filter pipe through a mounting buckle, and a butt joint pipe is mounted at the other end of the filter pipe. According to the desulfurized magnesium sulfite slurry cyclone provided by the utility model, by optimizing the structural design and adopting a new anti-blocking technology, the corrosion resistance of the cyclone is improved, the fine particle separation capacity is enhanced, and the blocking phenomenon is reduced, so that the operation stability of equipment is improved, the service life is prolonged, and the maintenance cost is reduced; and the recovery quality and efficiency of magnesium sulfite are improved.

The application provides a magnesium sulfite catalytic oxidation reactor, which comprises a tank body, a liquid suction structure, a liquid spraying structure and a pump body, wherein the liquid suction structure comprises a first liquid suction pipe, one end of the first liquid suction pipe extends into the bottom of the tank body, the other end of the first liquid suction pipe is connected with the pump body, and the end of the first liquid suction pipe in the tank body is provided with a filtering structure; one end of the liquid spraying structure is connected with the pump body, and the other end of the liquid spraying structure comprises a plurality of liquid spraying openings which extend into the tank body and are arranged close to the bottom of the tank body, and at least one of the liquid spraying openings is arranged towards the filtering structure. The oxidation reactor of the application increases the flow speed of slurry in the tank body, so that the slurry at the bottom of the tank body forms a turbulent effect, the catalyst is fully contacted with the slurry, and the catalytic efficiency is improved, and the problem of filtering structure blockage is effectively solved.

The application relates to a sample processing method for cervical exfoliative cell PCR detection, which adopts a sample processing reagent, including a processing liquid, a protection liquid, a conversion liquid, a first purification liquid, a second purification liquid, a third purification liquid and a collection liquid. The processing liquid contains 0.1-0.5N sodium hydroxide and 4-8mol / L urea; the protection liquid contains 1-8mM guanidine isothiocyanate, 0.1-5% SDS, 5-150mM Tris-Hcl and 5-100mM EDTA; and the conversion liquid contains 100-500mM sodium bisulfite, 50-250mM ammonium sulfite, 2-15M ammonium bisulfite, 0.1-3M tetrahydrofurfuryl alcohol, 1-5mM TEPA and 0.1-2M magnesium sulfite. The sample is lysed and protected by the processing liquid and the protection liquid, direct conversion and detection are facilitated, processing time and steps are saved, DNA loss is reduced, cost is saved, the accuracy and reliability of detection results are ensured.

The invention belongs to the technical field of resource utilization of industrial by-products and preparation of inorganic functional materials, and discloses a method for preparing high-purity magnesium metavanadate based on synergistic conversion of the industrial by-products. Ammonium metavanadate extracted from a chlorination process titanium dioxide byproduct hydrochloric acid, a thermal power plant magnesium desulfurization byproduct magnesium sulfite and an aluminum oxide process is used as a raw material, and the method sequentially comprises the following steps: dissolving ammonium metavanadate in hot water, and acidifying with the byproduct hydrochloric acid to obtain an acidic vanadium-containing solution; adding a byproduct magnesium sulfite under heating and stirring, carrying out a deep impurity removal reaction, and carrying out solid-liquid separation to obtain a purified solution; adjusting the pH value of the purified liquid to be nearly neutral to initiate a synthetic reaction; directional crystallization is carried out by adopting programmed cooling and combining seed crystal induction; and separating, washing and drying to obtain the high-purity magnesium metavanadate. According to the method, synergistic high-value utilization of three industrial byproducts is achieved, the process is simple, the cost is low, the method is environmentally friendly, the purity of the obtained product is larger than or equal to 99.2%, the crystal form is regular, and the method is suitable for catalysts or electrode materials.