73 results about "Split product" patented technology

The invention relates to a new method for preparing LixFeyPzO4 (particularly LiFePO4, LiFe2 / 3PO4 and Li4 / 7Fe4 / 7P8 / 7O4) by using ferro phosphorus, which comprises the following steps of: supplying an oxygen source for oxidizing P in the ferro phosphorus by only utilizing the oxygen in raw materials, proportioning in the mol ratio of the total phosphorus element to the total oxygen element of 1.0:(1.5-9.0), mixing the raw materials and then carrying out one-step reaction in a closed system at the temperature of 500-900 DEG C to obtain a product. The oxidation-reduction reacted material balance of the raw materials per se is realized in the closed system, without external oxygen sources, thereby solving a series of technical difficult problems caused by difficult oxygen quantity accurate control and oxygen introduction and eliminating the pollution of a large amount of waste gas during roasting by adopting an inert atmosphere or a carbide split product reducing atmosphere; the reaction is finished in the closed system, and the complete reaction is promoted by utilizing the pressure of the reaction per se, thereby reducing the volatilization of substances, such as lithium and the like in the raw materials, at high temperature and causing the product to be looser; and the method has no pollutant discharge in the preparation process, cleanness, environmental protection, short reaction flow, simple process, easy reaction operation, low requirement for equipment, low cost, less investment and good benefit and is easy to realize industrialization and suitable for producing high-performance LixFeyPzO4 by using the ferro phosphorus with low cost.

The invention relates to a ceramic matrix composite material employing silicon alkyne-modified SiBCN as a precursor and a preparation method of the ceramic matrix composite material, and belongs to the technical field of ceramic materials. Polysilylacetylene is introduced into an SiBCN precursor in a molecular level to prepare a silicon alkyne-modified SiBCN precursor, so that the compactness of the composite material ceramic matrix can be effectively improved; the ceramic yield is increased; and meanwhile, a split product can have excellent high-temperature oxidation resistance. The silicon alkyne-modified SiBCN precursor is adopted as impregnation matrix; a carbon fiber is taken as a reinforcement body; and the novel SiBCN ceramic matrix composite material is prepared by an infiltration pyrolysis method. The composite material has good mechanical property and excellent oxidation resistance.

The invention discloses a multi-section plasma cracking carbonaceous material reactor system which includes a preheating section, at least one hybrid reaction section, at least one chilling medium inlet and at least one chilling product outlet, wherein the preheating section includes a hollow cathode and an anode; carbonaceous material enters a reaction tube of the preheating section through a hollow passage of the hollow cathode; the at least one hybrid reaction section includes a plurality of cathode bars and anodes corresponding to the cathode bars; a plasma and or / arc forming region formed between the hollow cathode and the anode is positioned inside the reaction tube, and a plasma and or / arc forming region formed among the cathode bars and the anodes is positioned outside the reaction tube; a plurality of streams of plasma gas collides at the center of or near to the reaction tube of the preheating section, and is in convection contact with and intensely mixed with carbonaceous material and carrier gas, so that preheated carbonaceous material is heated, carbonaceous material is subjected to pyrolysis and cracking, and then carbonaceous material subjected to pyrolysis and cracking is subjected to volatile matter gas-phase reaction. The reactor system provided by the invention is excellent in carbon deposition prevention and thermal efficiency and higher in split product productivity.

The invention discloses a method for separating a cell nucleus from a human frozen tumor tissue suitable for single cell sequencing and a method for extracting the cell nucleus. The method for extracting the cell nucleus comprises performing splitting treatment on a sample to be extracted in a first buffer solution; performing first centrifugation on a split product to obtain a cell nucleus precipitate; rinsing the cell nucleus and conducting resuspending treatment in a second buffer solution to obtain the cell nucleus; wherein the first buffer solution comprises: 116.8 mM of NaCl, 8 mM of Tris base at pH 7.8, 0.8 mM of CaCl2, 38 mM of MgCl2, 0.04% BSA, 0.16% Nonidet P-40, 1 mM of EDTA and 1 mg / mL of DAPI. The second buffer solution comprises 1*PBS, 1.0% BSA and 0.2U / [mu]L of RNase inhibitor. According to the method, only a simple reagent is required, no expensive separation equipment is required, and sufficient complete mononuclear can be obtained from the less frozen tumor tissue forsingle cell RNA sequencing.

The invention relates to a preparation method using bacterial lysate as inactivated vaccine adjuvant. The preparation method comprises the following steps: step 1, respectively putting corynebacterium pseudotuberculosis and rhodococcus equi into an LB culture medium for culturing at 37 DEG C, and harvesting thalli through a centrifugal machine; step 2, diluting each thallus to 8.0* 10<9> cfu / mL by using sterilized normal saline, and crushing the bacterial liquid by using a high-pressure homogenizer; and step 3, after sterility test, mixing the split products of corynebacterium pseudotuberculosis and rhodococcus equi with the two bacteria inactivated by formaldehyde according to a ratio of 1: 1 to obtain the inactivated vaccine added with the adjuvant. The preparation method has the characteristics of safety, high efficiency, strong immune enhancement capability and low cost, and is suitable for producing various bacterial inactivated vaccines.