32results about How to "Simple production process conditions" patented technology

The invention provides bamboo-charcoal-shaped porous ceramsite coated by zero-valent iron as well as a preparation method and application of the bamboo-charcoal-shaped porous ceramsite. The preparation method of the bamboo-charcoal-shaped porous ceramsite coated by zero-valent iron comprises the following steps: taking alpha-Al2O3 powder as ceramsite primary aggregate, clay and bentonite as auxiliary aggregates and surface-activated bamboo bits as bamboo charcoal preparation materials to combine with a pore forming agent to prepare pores without adding a sintering aid or a binder; adopting graded sintering at 400-600 DEG C to obtain bamboo-charcoal-shaped porous ceramsite by once molding; then, preparing the product bamboo-charcoal-shaped porous ceramsite coated by zero-valent iron by virtue of a reducing coating process of the coating material, wherein the product bamboo-charcoal-shaped porous ceramsite is a deep dark small ball with a grain size of 2-10 mm, internally a porous honeycomb spherical structure with a surface pore size of 15-25 mu m, has water absorption of 20-35% and a specific surface area of 40-60m<2>/g. The preparation method disclosed by the invention is environmentally friendly simple and energy-saving in preparation process, various in treated pollutants, and suitable for treating non-biodegradable wastewater such as flue gas wastewater, heavy metal wastewater, phenol-containing wastewater, emulsified oil wastewater, note printing and printing and dyeing wastewater, and raw material are easily available.

The present invention is one kind of biomass briquette adhesive and corresponding biomass briquette producing process. The pale yellow ropy biomass briquette adhesive is produced with crop stalk and through air drying, crushing, soaking in water, adding slaked lime and steaming while stirring. The biomass briquette adhesive has facile cheap material, high efficiency, simple production process and simple composition. The biomass briquette with high biomass adding amount and best utilization of biomass energy of crop stalk is produced through mixing the biomass briquette adhesive and powdered coal in certain ratio and extruding formation. The biomass briquette has high strength, high waterproofing performance, low burning point, high heat value and excellent sulfur fixing effect.

The invention relates to a preparation method for lithium cobalt oxide with high pole piece compaction density. The preparation method is characterized by comprising the following steps: (1) weighing battery grade lithium carbonate, cobaltosic oxide with the particle size of 2.5-5 mu m and a doped raw material-magnesium oxide, aluminum oxide, titanium oxide or zirconium oxide; and sintering a mixed raw material for the first time; (2) carrying out ball milling and mixing on the battery grade lithium carbonate and the cobaltosic oxide with the particle size of 2.5-5 mu m; and sintering a mixed raw material for the first time; and (3) weighing powder prepared in the steps (1) and (2) respectively, carrying out ball milling and mixing, and sintering for the second time. The preparation method has the advantages of capability of remarkably enhancing the pole piece compaction density, excellent pole piece processing performance, high commonality of a slurry formula, long cyclic life and the like, and particularly has the advantages of simple required production equipment and simplicity for change of production process conditions.

The invention relates to MDQ phenyl vinyl silicone resin. The MDQ phenyl vinyl silicone resin has the structure shown in the following general formula: (Ph2SiO)a(ViMe2SiO0.5)b(Me3SiO0.5)c(SiO2)d, wherein Ph is phenyl, Me is methyl and Vi is vinyl; the a value ranges from 0.1 to 1, the (b+c) value ranges from 0 to 0.1, and b is larger than 0; the d value ranges from 0 to 0.8, and the sum of a, b, c and d is larger than 0; the value of (a/d) ranges from 1.6 to 2.5; and the value of [(b+c)/d] ranges from 1.6 to 2.5. The invention further provides a preparation method of the MDQ phenyl vinyl silicone resin. According to the method, the viscosity, the refractive index and the vinyl content of a product are controlled through conditions of monomer raw material ratio, the reaction time, temperature and pH value and the like, the manufacturing conditions are mild, simple and feasible, the raw material source is wide, and the repeatability is good.

The invention relates to a method of removing chiral dextroisomer in cooling agent WS-3 synthesized based on a raw material natural menthol. The method is based on purification of dextroisomer in thecooling agent WS-3 and other impurities in the reaction product, purification comprises steps of distilling, crystalizing, recrystallizing, centrifuging, drying and post-treatment, and levo-cooling agent WS-3 in the final product reaches national standards and commercial requirements.

The invention discloses a phosphorus-containing dihydric alcohol and a preparation method thereof. The phosphorus-containing dihydric alcohol is a synthetic dihydric alcohol. The preparation method comprises the following steps that 1, n-butyraldehyde and a formaldehyde solution undergo a reaction under a certain condition to produce 2,2-dimethylolbutyraldehyde; and 2, DOPO and 2,2-dimethylolbutyraldehyde undergo a reaction under a certain condition; and the reaction products are subjected to pumping filtration, washing, recrystallization and drying to form the phosphorus-containing dihydric alcohol product. The phosphorus-containing dihydric alcohol can be used as a reactive flame retardant used in polymers such as epoxy resins, phenolic resins, plastic and rubber to improve the flame resistance of the polymers, and can also be used as a phosphorus-containing intermediate for preparation of other high-performance materials. The preparation method has the advantages of simple processes, high product purity, high yield and simple aftertreatment.

A method for recovering protein in shrimp heads and shrimp shells by an enzyme hydrolysis method is disclosed. According to the invention, shrimp product leftovers, namely shrimp heads and shrimp shells, are used as raw materials, and undergo artificial enzymolysis process to obtain a hydrolysate which has no bitter taste or fishy smell and has an excellent taste; and the hydrolysate is further made into shrimp oil or dried to prepare protein. On one hand, precious resources such as shrimp heads and shrimp shells, etc. can be fully utilized so as to change waste materials into valuable things; and on the other hand, the environmental pollution problem caused by shrimp shells and shrimp heads also can be solved. The production technology has simple conditions, is convenient to operate, and can be adopted to realize industrial production.

A high-purity ethinyloestradiol synthesis method relates to a synthesis method of estrogen ethinyloestradiol, and in particular relates to a synthesis method for synthesizing high-purity ethinyloestradiol by using estrone and acetylene potassium. The synthesis method comprises two steps as follows:1, reacting potassium hydroxide powder with an acetylene gas to obtain acetylene potassium; and 2, reacting the estrone with the acetylene potassium so as to obtain the ethinyloestradiol at a high content. The high-purity ethinyloestradiol synthesis method has a simple technical condition, no need of expensive reagents, low production cost, easily controlled industrial generation condition, fast reaction speed, high production efficiency, high yield, high content and good product quality, meets the standard of European pharmacopoeia, achieves obvious comprehensive economic benefits, solves the problems that reagents used in the conventional production technology are expensive, the reaction time is long, the consumption amount of acetylene, is great, the proportion of epimers in an ethynylation product cannot be controlled efficiently, the yield and content are low, and the demands on industrial production of the ethinyloestradiol cannot be satisfied, and can be popularized and applied to all the ethinyloestradiol production enterprises.

The invention provides a burley tobacco extract applied to a heated-non-combustible cigarette and an application of the burley tobacco extract. With a composite biological material of burley tobacco stems and bagasse as an immobilized carrier, biological preparations, including a microbial aroma-producing strain and enzyme, are adsorbed; burley tobacco powder is incubated, hydrolyzed and fermented; and in combination with a continuous counter-current ultrasonic solvent extracting technology, the burley tobacco extract is prepared, and the burley tobacco extract can be combined with propylene glycol; intrinsic intense fragrance of natural tobacco is reserved; characteristic smell of burley tobacco is relieved and irritation is reduced; the burley tobacco has natural composite fragrance of fresh fruity aroma, smell of caramel, smell of being roasted and the like; the preparation method of gentle in process conditions, high in extracting rate and high in production efficiency; the burleytobacco extract is applied to a novel heated-non-combustible cigarette material; the burley tobacco extract is coordinate with cigarette fragrance and uniform in style, and the burley tobacco extractcan increase smoke concentration, enhance feeling of being satisfied and enrich cigarette aroma; and irritant smell of burley tobacco is obviously reduced, and taste is improved.