338results about How to "Low yield" patented technology

In at least one embodiment of the present invention, a method for producing liquid hydrocarbons from biomass is provided. The method comprises hydropyrolizing biomass with a gaseous exhaust stream formed from one of gasification and reforming of carbon containing moiety (CCM). The gaseous exhaust stream includes hydrogen (H₂) and at least one of carbon monoxide (CO), carbon dioxide (CO₂) and water (H₂O).

A method and process for the treatment of wastewater containing phosphorous and nitrogen. The wastewater is first anaerobically treated to produce an anaerobic effluent from which insoluble organic carbon is separated to form a sludge rich in organic carbon that is used as a substrate during anoxic treatment of the wastewater by de-nitrifying phosphorous accumulating organisms (DPAO's) and ordinary de-nitrifying organisms. The separation of insoluble organic carbon is normally conducted using a clarifier located intermediate the anaerobic and anoxic bio-reactors. In one embodiment, the ammonia rich clarifier supernatant is directed to an aerobic reactor for nitrification and the nitrate produced is recycled to the anoxic bio-reactor. The final effluent may be membrane filtered to retain nitrifying biomass within the aerobic bio-reactor. The invention reduces overall hydraulic residence time and sludge volume, which results in a smaller, less expensive wastewater treatment system.

A process for preparing low-carbon olefin from methanol or dimethyl ether includes loading its raw material and silicon aluminium phosphate (SAPO34) molecular sieve as catalyst into gas-solid parallel down-flowing fluidized bed reactor, super-short contact, reaction, fast gas-solid separation to separating resultant from catalyst to prevent secondary reaction, and regerating catalyst for cyclic use. Its advantages include high output rate (93%), high conversion rate of raw material, and less by-product.

A process for the preparation of toner by, for example, mixing a colorant, a latex, optionally a wax and a water solubilized silica with an alumina coating or an aluminized silica as a coagulant.

The invention discloses a preparation method of a catalyst for preparing unsaturated aldehyde and unsaturated acid in high selectivity. The catalyst is Mo-Bi-Fe-Co composite metal oxide. On the basis of a co-precipitation preparation method, a two-section roasting process is introduced, and simultaneously, a method for adjusting a formula and a method for treating by water solutions of soluble molybdenum, alkali metal and alkali earth metal are combined, so that the selectivity of the catalyst is greatly improved, the yield of the carbon oxide is effectively reduced, and the catalyst can be used for preparing the unsaturated aldehyde and the unsaturated acid in high selectivity, still has very good activity and stability at a high air speed and is suitable for tail gas recycling or non-tail gas recycling processes.

In at least one embodiment, a TFT includes: a first capacitor formed of a first capacitor electrode connected to a source electrode and a second capacitor electrode; a second capacitor formed of a third capacitor electrode and a fourth capacitor electrode; a first lead-out line; a second lead-out line connected to a gate electrode; a third lead-out line; a fourth lead-out line; a first interconnection; and a second interconnection. This realizes a TFT which can be easily saved from being a defective product even if leakage occurs in a capacitor connected to a TFT body section.

Provided is a making method of a tunable semiconductor laser and a tunable semiconductor laser, wherein the making method comprises the following procedures: growing lower waveguide layer, multiple quantum trap structure, upper waveguide layer and indium phosphide layer epitaxially and sequentially on the n type substrate; growing earth silicon dielectric membrane on the epitaxial layer; dividing into active waveguide region and raster region; butting passive waveguide portion; removing earth silicon dielectric membrane and indium phosphide layer on the surface of the active waveguide region; growing ridge waveguide indium phosphide material and low resistivity InGaAs ternary layer sequentially; growing earth silicon dielectric membrane; making raster graphic of the ridge waveguide and the ridge waveguide on the raster region; etching raster of the ridge waveguide and the ridge waveguide on the raster region; growing earth silicon dielectric membrane continuously; opening the window separately on active waveguide region and raster region in order to make electrode isolation ditch; making P face and N face electrode of laser. The invention has good product property and high automation degree of the product making, which simplifies the technology process and has good product ratio.

The invention relates to the field of cell biology. In detail it relates to the obtainment of mesenchymal stem cells from human tissue. This invention might be applicable in healing within the frame of the treatment of several diseases. Due to the invention it will be possible to obtain mesenchymal stem cells from human tissue with high homogeneity of the cell suspension, since the used method for obtaining mesenchymal stem cells from human tissue comprises the crushing and enzymatical treatment of the tissue with collagenase solution in Eagle medium in the Dulbecco modification, removal of erythrocytes by the aid of the lysis solution and subsequent filtration of the prepared suspension; as human tissue fat tissue or decidual or amniotic placenta membrane or chorion placenta stroma is used, whereas the filtration is performed sequentially by the use of filters comprising a pore size of 100 μm and 10 μm. In the enzymatical treatment of the fat tissue, of the decidual or amniotic placenta membrane collagenase of the type I is used, and in the enzymatical treatment of the chorion placenta stroma collagenase of the type IV is used.

The invention discloses a cracking catalyst containing mesoporous silica-alumina material, wherein the cracking catalyst is composed of cracking active components: clay, adhesive and mesoporous silica-alumina material. The mesoporous silica-alumina material is of a pseudo-boehmite crystal phase structure. In case of the weight of oxide, the anhydrous chemical expression formula is: (0-0.3) Na2O (40-90) Al2O3 (10-60) SiO2, the specific surface area is 200-400m<2>/g, pore volume is 0.5-2.0ml/g, the average pore size is 8-20nm, and the most probable pore size is 5-15nm. The adhesive is selected from one or two mixtures of silica sol or aluminum sol. Compared with the conventional catalyst with pseudo-boehmite, the cracking catalyst has the advantages of low production cost and better crude oil conversion capacity.

The invention relates to a titanium alloy, in particular to a titanium alloy TC4 hot-rolled tube and a production method thereof. By weight, the composition of the alloy is as follows: the balance of Ti, 5.5 percent to 6.75 percent of Al, 3.5 percent to 4.5 percent of V, less than or equal to 0.1 percent of Fe, less than or equal to 0.1 percent of C, less than or equal to 0.03 percent of N, less than or equal to 0.015 percent of H and less than or equal to 0.15 percent of O. A tube blank is heated and rolled on line, the on-line heating temperature is 600 DEG C to 1200 DEG C, and is kept for 1 to 45 minutes, the deformation at each pass is 15 percent to 85 percent, the rolling speed is 20 to 90 times/min, a finished product is produced after 1 to 10 times of rolling, the rolled finished product is annealed in oxygen or vacuum, the annealed finished product is washed by alkali and acid or acid and then by water, and thereby the product is obtained. The tensile strength of the titanium alloy tube is 895MPa to 1300MPa, the elongation of the titanium alloy tube is 8 percent to 25 percent, the metallographic structure is uniform, and a stress-relief annealed metallographic structure and a fully recrystalization annealed metallographic structure can be obtained.

A method and system for identifying management zones for variable-rate crop inputs, wherein the zones are developed using soil, water and topography base maps. The base maps are combined into various different zone maps, and a final zone map is selected on the basis of observed field characteristics.

This delay coking process achieves in more production of quality light oils and lower coke yield. It is carried out by adding light fraction of coal tar as coking resistant agent to increase the yield of light oils and to decrease the yield of coke. The process costs less than the prior arts in coking resistant agent with excellent coking effect. It can be used in various operations of heavy and residual oil coking process.

An electronic device is presented comprising at least one electrically conductive element coupled to an elongated carbon or inorganic semiconductor based nanostructure, by a biological binder.

A microimprint/nanoimprint device includes a mold, a substrate and an energy transferring module. The substrate is disposed oppositely to the mold and at least has a molding material layer. The energy transferring module includes an energy transferring member and at least one energy source, wherein the energy transferring member is connected to the substrate or the mold, and the energy source provides imprint energy to the substrate or the mold, such that at least part of the imprint energy goes through the energy transferring member to the substrate or the mold for performing imprint molding.

A TFT includes, in at least one embodiment, a capacitor formed: so as to have a region where a first capacitor electrode connected to a source electrode and a second capacitor electrode connected to a gate electrode are arranged to be stacked in a thickness direction and mutually opposed across a first dielectric layer therebetween; and so as to have a region where the first capacitor electrode and a third capacitor electrode connected to the gate electrode are arranged to be stacked in the thickness direction and mutually opposed across a second dielectric layer therebetween with a coupling between the first capacitor electrode and the third capacitor electrode and a coupling between the first capacitor electrode and the second capacitor electrode formed over mutually opposite faces of the first capacitor electrode. This realizes a TFT which can save a footprint of a capacitor connected to a TFT body section.

The invention provides multifunctional catalytic cracking strengthening additive which comprises a rare earth organic compound, heteropoly acid (and salt thereof), chemical inhibitor, solvent, and the like and has the functions of resisting oxidation and preventing from scorch, dispersing, increasing the acid center, passivating the metal, and the like. When being added into a catalytic cracking lifting pipe reactor, the multifunctional catalytic cracking strengthening additive can inhibit the generation of secondary reaction such as thermal cracking reaction, dehydrogenation condensation reaction, and the like, reduces the generation of side products of net gas, coke, hydrogen, and the like, and improves the yield coefficients of products with high added values, such as liquid gas (especially propylene), gasoline and diesel. The catalytic cracking strengthening additive has the function of metal deactivator and can replace the metal deactivator, therefore, the metal deactivator needs not to be added after the catalytic cracking strengthening additive is added. The invention has the function of resisting oxidation and preventing from scorch, can inhibit a lifting pipe and a settling vessel from being coked and prevent a reaction system from scale deposit, thereby being multifunctional catalytic cracking strengthening additive.

The invention discloses a method of refining furfural through six-tower continuous rectification. A process of the method comprises the following steps of: flowing furfural steam through a steam generator and a primary tower reboiler and then feeding into a primary tower; obtaining furfural water azeotrope on the top of the tower; condensing to split phase; reflowing the water phase; feeding aldehyde phase into a washing tower; removing acidic substances in the material by the washing tower; returning the furfural solution on the top of the tower to a primary tower feed tank; feeding output at the bottom of the tower into a light component removal tower; removing light component impurities by the light component removal tower; feeding the furfural liquid at the bottom of the tower into a dehydrating tower; obtaining furfural water azeotrope on the top of the dehydrating tower; condensing to split phase and reflowing; feeding coarse furfural produced at the bottom of the tower into a refining tower; obtaining a furfural product on the top of the refining tower; feeding high boiling point aldehyde mud at the bottom of the tower into a stripping tower; recovering the furfural from the aldehyde mud in the stripping tower; returning furfural solution on the top of the stripping tower to the primary tower feed tank; and treating the aldehyde residue at the bottom of the tower to serve as a boiler fuel. The method has the advantages of high furfural product purity, high yield, low energy consumption and low pollution.

A process for the preparation of 4-[4-[4-[4-[[(3R,5R)-5-(2,4-difluorophenyl)tetrahydro-5-(1H-1,2,4-triazol-1-ylmethyl)-3-furanyl]methoxy]phenyl]-1-piperazinyl]phenyl]-2-[(1S,2S)-1-ethyl-2-hydroxypropyl]-2,4-dihydro-3H-1,2,4-triazol-3-one compound of formula-1, its intermediates and polymorphs thereof. (I)

Processes for preparing tubulysins and derivatives thereof are described. In addition, processes for preparing unnatural tubulysins are described.

An enzymatic process is described for the production of chemicals from carbon sources. In particular, according to one aspect, a process for the production of a target organic compound from a carbon source by a cell-free enzyme system is disclosed.

The invention discloses a crater-type graphical sapphire substrate and a preparation method thereof. An ordinary commercial micrometer PSS substrate is used as an imprint template, rather than a customized imprint template is used, patterns are simple, the expense is low, and the problem that the imprint template is difficult to prepare and the cost is high can be ingeniously solved; meanwhile, an annular mask is prepared by utilizing a nanoimprint technology, a high-quality VPSS can be acquired by combining a sapphire etching technology, and the commercialization of the VPSS can be facilitated; by adopting the secondary imprint method and the IPS technology, the patterns on the imprint template are prevented from being directly transferred onto a nano imprint adhesive which is coated on an epitaxial slice in a spinning mode, and the breaking of the template can be avoided; STU is collectively imprinted by adopting hot pressing and ultraviolet imprinting, so that the output efficiency and repeatability can be improved. Compared with the ordinary micrometer PSS, the crater-type graphical sapphire substrate has more lateral epitaxial components and larger reflection area, so that the improvement of the light emitting efficiency of the LED can be better facilitated.

The invention discloses an unfired magnesia-alumina spinel brick. The unfired magnesia-alumina spinel brick comprises the following chemical components by mass: 80 to 90% of fused magnesia, 5 to 15% of magnesium-rich magnesia-alumina spinel, 1 to 3% of micro alumina powder, 1 to 3% of aluminum-silicon alloy powder and 0.2 to 0.6% of B4C. The chemical components are bonded together by using 3.5 to 5 wt% of an added binder. The content of magnesium oxide in the fused magnesia is greater than 98 wt%, and the content of magnesium oxide in the magnesium-rich magnesia-alumina spinel is greater than 30 wt%. The unfired magnesia-alumina spinel brick provided by the invention has excellent slag reaction resistance, slag penetration resistance, anti-stripping performance, anti-scouring performance, resistance to oxidation and a long service life, does not include the harmful element--chromium, avoids pollution and harm to human beings and the environment, needs low production cost and has a wide application scope.

The invention belongs to the technical field of petroleum hydrocarbon catalytic conversion, and especially relates to a high propylene yield catalytic conversion method. According to the method, a catalyst regenerator and two reaction systems are arranged, raw oil (13) carries out catalytic reactions in the first reaction system, all reaction products (or part of the reaction products) enter the second reaction system in a gas form and carry out catalytic reactions; a second reactor catalyst (22A) to be regenerated and a catalyst from the catalyst regenerator enter the second reactor (2); the fluidized catalytic cracking reaction of first reactive oil gas (33) is realized again, two reaction systems use a same catalyst, and the reaction products are separated in individual precipitators to realize gas-solid separation and then discharged from the precipitators. The energy consumption is reduced, individual high temperature cracking reaction is realized, fluidized bed reaction is stopped rapidly, the contradiction between propylene increasing and dry gas reducing is solved, the propylene yield is increased, and at the same time, the yield of dry gas and coke is prominently reduced.

The invention relates to a method and production equipment for variable-pressure distillation and purification of methyl acetate. The method mainly comprises the following step of: carrying out variable-pressure distillation and separation on a mixed solution of methyl acetate, methanol and water through a pressurized distillation column, an atmospheric distillation column and a methyl acetate refining column. The fundamental principle is as follows: by utilizing the characteristic that the sensitivity of azeotropic compositions of methyl acetate-methanol and methyl acetate-water is changed along with the pressure variation, the separation and purification of the mixed solution of the methyl acetate, the methanol and the water are realized by adopting the distillation columns with different operating pressures and the purposes of energy conservation and consumption reduction are realized through heat integration, so that the problems that conventional processes of salt extraction, extractive distillation and the like are low in product purity, difficult in solvent recovery and higher in energy consumption and have need for introducing the third component and the like are solved. Therefore, the method disclosed by the invention has the advantages of high methyl acetate yield, high product purity, simple process, low energy consumption and the like.

The invention relates to a method for preparing dimeric acid methyl ester by using Brphinsted-Lewis double-acid ionic liquid to catalyze unsaturated fatty acid methyl ester dimer. The method is characterized in that the Brphinsted-Lewis double-acid ionic liquid consisting of alkyl sulfonic acid functionalized pyridine cations or alkyl sulfonic acid functionalized 1,3-dialkylimidazolinium cations or alkyl sulfonic acid functionalized quaternary ammonium cations and inorganic anions of Lewis acid is used as a catalyst; and under the protection of nitrogen, the Brphinsted-Lewis double-acid ionic liquid catalyzes a fatty acid methyl ester polymerization reaction for 2 to 8 hours at the reaction temperature of between 220 and 280 DEG C to prepare the dimeric acid methyl ester. Compared with the prior art, the method has the following advantages: 1, the method has higher polymerization capacity, does not need to pressurize, and has short reaction time; 2, a dimeric acid methyl ester product and the ionic liquid catalyst are not miscible and are layered automatically, and the separation process is easier; and 3, the catalyst has stable ionic liquid performance, and can be recycled.

The device allows imaging of the flow of proximity multi environmental parameters, like temperature, pressure, force, while simultaneously detecting environmental molecules/chemicals. The device may be housed in a portable camera-like or sheet detection system. Such a system will allow the real time visualization of the chemistry and physics of fluids (air, water, plasmas) in a camera format and create a novel environmental monitoring system.

The invention relates to a spirulina phatensis polysaccharide and an extraction method thereof. The extraction method comprises the following steps: after multigelation and wall breaking of a spirulina phatensis powder suspension, centrifuging to obtain a cell lysate 1 and cell debris; adding ammonium sulfate in the cell lysate 1 until the saturation is 50%, after salting-out precipitation, centrifuging to remove phycobiliprotein to obtain a supernatant, and evenly mixing the supernatant and the cell debris to obtain a cell lysate 2; obtaining a spirulina phatensis polysaccharide crude extract by using a hot water extraction method; adding the crude extract to an ethanol/ammonium sulfate aqueous two-phase system, and extracting to obtain a bottom-phase solution of spirulina phatensis polysaccharide with higher purity; after the bottom-phase solution is desalted by dialysis, eluting by using a Sephadex G-150 chromatographic column and a DEAE Sephadex A-50 anion exchange column to obtain a pure spirulina phatensis polysaccharide solution; and freeze-drying, thereby obtaining a pure spirulina phatensis polysaccharide finished product. The extraction method can be used for avoiding the traditional complicated protein removal operation steps, has low cost, high yield, and high purity and activity of polysaccharide, and is suitable for intermittent and large-scale production and processing.

The invention discloses a remanufacturing process for a piston rod of a supporting type coal mine hydraulic support through induction, preheating and cladding. The remanufacturing process comprises the steps of cleaning of old components, judgment and grade classification of remanufacturing characteristics, rough machining of the old components of the piston rod, induction, preheating and cladding of a wear-resistant and corrosion-resistant coating, subsequent fine machining, quality inspection and warehousing. According to the remanufacturing process disclosed by the invention, the induction, preheating and cladding are introduced to the remanufacturing of the old components, so that the defects that a conventional repair process is limited in processing time, poor in roughness and poor in effect are overcome; the problems that a laser cladding remanufacturing process is high in cost, low in efficiency and easy in thermal deformation are solved; the high performance and high quality of a remanufactured piston rod are achieved; the high speed, high efficiency, high yield, automatic control and low production cost during remanufacturing are realized; the service life of the remanufactured piston rod is significantly prolonged; the whole remanufacturing process is pollution-free, green and environment-friendly.

The invention discloses a processing method of a steel piston gas ring, which comprises the following steps: winding-destressing-grooving-shaping-top line trimming-flat surface grinding-excircle boning-chroming or nitriding-top line trimming-excircle boning-top line trimming-flat surface grinding; the size of a shaped blank rod is improved by calculating pressure distribution mold lines with different ovality requirements and fully considering the mold line change caused by nitriding shrinkage, thereby the problem of gas ring deformation after procedures, such as nitridation, and the like is greatly reduced, and the finished product ratio of the product is improved. Compared with the defects of long process routes, multi-workshop crossing processing and low comprehensive finished product ratio in the casting iron gas ring, the comprehensive finished product ratio of the steel gas ring processed by using the shaped blank rod can reach up to 95 percent. By utilizing the pliability characteristic of the steel and adopting a shaped steel winding and shaping process, the invention solves the fussy machining process of cast iron material, shortens the manufacturing period, also reduces the procedure waste simultaneously and saves the process manufacturing cost.

The invention relates to a method for extracting low-pesticide-residue ginsenoside from ginsengs. The method comprises the following steps of leaching the ginsengs for 3-4 times in cold water, wherein each leaching lasts for 8-12 hours; combining leaching liquids, carrying out concentration, solvent extraction and concentration, enabling the leaching liquids to pass through a macroporous resin column, and flushing by utilizing water; carrying out ethanol elution, collecting the eluted liquid, and drying to obtain the low-pesticide-residue ginsenoside. The production method of the ginsenoside comprises two purification processes, the preliminary purification is extraction, and the resin is highly purified; partial impurities are removed in the extraction process, so that the high purification efficiency is improved.