49results about How to "Potential for industrial production" patented technology

The invention belongs to a method for preparing a zeolite molecular sieve and relates to a method for preparing a NaX-type zeolite molecular sieve pure phase by using clay. The method comprises the following steps: stirring and mixing clinker prepared by mixing and calcining clay and sodium carbonate with sodium metaaluminate and water into colloid, crystallizing, filtering, washing and filtering to obtain the NaX-type zeolite molecular sieve pure phase. The filtered mother solution is recycled and serves as one part of the raw material. The mother solution is recycled, so that the synthetic cost is reduced, waste discharge is avoided, and the environment is not polluted. The method has obvious advantages in aspects of preparation cost, product performance, process flow, environment friendliness and economic profits, and the raw material source is rich, the cost is low, the synthesis simple and convenient, the equipment requirement is low, the product performance is high and the industrial production potential is high.

The invention discloses beta-1,3-D-glucan modified biomimetic hollow silicon dioxide composite particles and application thereof. The composite particles are obtained by performing a coupling reactionon biomimetic hollow silicon dioxide particles and beta-1,3-D-glucan, wherein the pore diameter range of nanometer transmission pore passages of the biomimetic hollow silicon dioxide particles is 1.7-15.2nm. The composite particles have the morphologies of bacteria and the nanometer transmission pore passages with appropriate pore diameter distribution, facilitate passing of antigens and medicines with different molecular weights, have relatively high antigen loading capacity, can continuously release the antigens, can increase the antigen utilization rate, reduce the number of injections andreduce toxic and side effects of the antigens and vaccine adjuvants, and continuously provides an immunoprotective effect; the composite particles have the equivalent level of inducing antigen-specific antibodies to an aluminum adjuvant and a Freund's adjuvant, and have a wide application prospect in the biomedical field; in addition, the composite particles is simple in preparation method, low in cost, environment-friendly and low in preparation cost, and have an industrial production potential.

The invention discloses a method for preparing a cellulose solution. The basic technical principle is to improve the wettability of the solvent to natural cellulose crystals by regulating the amphiphilic properties of the cellulose solvent, thereby promoting the dissolution of the cellulose. Based on this principle, the room temperature temperature and dissolution technology method of cellulose was proposed. The method has the advantages of simple process, dissolution at room temperature, environmental friendliness and insensitivity to the water content of the system. The cellulose solvent adopts the following composition: organic base accounts for 5-70% of the total weight of the solvent, additives account for 2-90% of the total weight of the solution, and water accounts for 1-65% of the total weight of the solvent. The cellulose is blended with the cellulose solvent to form a blend, and stirred until completely dissolved to obtain the target cellulose solution. The cellulose solution prepared by the method of the present invention is used for manufacturing regenerated cellulose film, regenerated cellulose fiber or cellulose-based composite material.

The invention discloses a preparation method for preparing medium-low pressure compound medium-containing film forming foil by surface self-assembly method. In the method, the low-pressure corroded foil is used as a raw material, and the surface of the aluminum foil is modified by a soaking method. Soak the corroded foil in the solution of 5~10mmol / L γ-mercaptopropyltrimethoxysilane and cyclohexane as solvent for 5 h, CH 3 COOH / H 2 o 2 (Vol)=5:1 solution for 1 h, 0.3~0.8mol / L Ti gel soaked for 5~10 h. Heat treatment at 500°C for 5 min after drying. After that, the aluminum foil is anodized, and ammonium adipate and ammonium citrate are used as solutes to prepare a chemical solution, according to the current density of 0.1~0.3A / cm 2 , and the voltage ranged from 12 V to 141 V to perform six-level gradient formation on the modified aluminum foil. The aluminum foil is then subjected to intermediate treatment, re-formation, heat treatment, and post-treatment operations in sequence, and finally a high specific volume medium-low pressure compound dielectric film-containing foil is obtained. The advantages of the present invention are: simple process, convenient operation; TiO 2 The amount of deposition on the surface of the aluminum foil is large, and the specific volume of the aluminum foil made is high.

The invention discloses a preparation method for low-pressure forming foil of a film containing a composite medium. In the method, low-pressure corroded foil is used as a raw material, and the corroded foil is put into Ti-containing sol through a soaking method, so that the surface of the aluminum foil contains Ti sol. The pretreated aluminum foil is anodized, and the specific operations include: six-stage chemical formation, intermediate treatment, re-formation, heat treatment, and post-treatment. The chemical conversion solution is prepared from ammonium adipate, sodium citrate and deionized water, and the intermediate treatment solution is prepared from phosphoric acid, citric acid and deionized water. The post-treatment solution is prepared by adding ammonium dihydrogen phosphate, ammonium dihydrogen citrate and deionized water. The invention has simple process and convenient operation, and the produced aluminum foil has higher specific volume and stronger hydration resistance.

The invention discloses an actinobacillus succinogenes GXAS-137, and a method for producing succinic acid by screening and fermentation of the strain; the strain is obtained by enrichment and screening from a cattle rumen; the method comprises the following steps: inoculating the actinobacillus succinogenes strains in a seed medium, culturing for 24-36 hours in an anaerobic incubator or a common incubator at 30-38 DEG C in a static manner, inoculating into a fermentation medium with an inoculation amount of 1-10%, adjusting the pH to 6.0-7.0, and performing fermentation at 30-38 DEG C for 24-120 hours to obtain succinic acid. Fermentation research is performed with different raw materials and in different media; the succinic acid yield is up to 70 g / L; and the method has potential for industrial production.

The invention discloses a method for preparing a sodalite pure phase by taking oil shale ash as a raw material, and belongs to the field of production and preparation of inorganic functional materials. The method is characterized by comprising the following steps: firstly determining contents of SiO2 and Al2O3 in the oil shale ash raw material, sieving the oil shale ash by a sieve, and drying theoil shale ash in an oven; after drying, evenly mixing the oil shale ash with NaOH and deionized water, and stirring the mixture electromagnetically at normal temperature, wherein the proportion of a reaction raw material formulation is as follows: the proportion of H2O to Na2O is equal to 5.0-7.8, and the proportion of the Na2O to the SiO2 is equal to 2.5-7.0; transferring the materials into a reaction kettle, and crystallizing the materials at constant temperature; and finally, filtering, washing and drying the product to obtain the sodalite pure phase. The method has the advantages of preparing a sodalite molecular sieve pure phase from the low-cost raw material oil shale ash. The pretreatment for the oil shale ash is simple, has no redundant heat treatment and acid treatment, and savesenergy; and the preparation flow has no alkali fusing process, simple process, easy operation, and friendly environment.

The invention discloses a boron carbide / silicon carbide ceramic hollow microsphere and a preparation method thereof. The preparation method utilizes a vinyl silane coupling agent to modify boron carbide, and then grafts PCS to B 4 on C‑V, then B 4 C-PCS is prepared into a slurry, and the polymer ball is used as a template to prepare a slurry coating ball, and finally the slurry on the polymer ball is cured in an air atmosphere, and then heat-treated in an air atmosphere to remove polymerization. Object spherical template, and finally fired at high temperature in an inert atmosphere to obtain boron carbide / silicon carbide ceramic hollow microspheres. The preparation method provided by the present invention can adjust the diameter of boron carbide / silicon carbide ceramic hollow microspheres by selecting polymer spheres with different diameters, and realize a wide range of diameter control, and the wall thickness of ceramic hollow microspheres can be changed by changing the slurry coating. The thickness of the wall can be adjusted in a wide range by adjusting the number of coating times. The preparation method is simple, convenient, fast and efficient, and the raw materials are cheap and easy to obtain, which has the potential for industrial production.