842 results about "Direct production" patented technology

The invention provides methods for the selection of transgenic cells. The invention relates to the unexpected finding that cells expressing a gene conferring tolerance to auxin-like herbicides such as dicamba may be directly selected from non-transgenic cells using auxin-like herbicides as a selective agent. In this manner, plants exhibiting tolerance to auxin-like herbicides can be directly produced without the need for separate selectable markers.

Metallic iron is produced from a composition formed from a mixture of iron ore particles and particles of a reductant made of a biomass material, a coal or coke in a particulate form together with a flux and is processed in a loose, un-agglomerated non-pelletized, non-briquetted form in a reducing furnace to produce metallic iron directly from the ore. An excess of biomass or coal or coke reductant can be used to provide CO and H that can be recovered as a synthetic gas and converted to electrical or other energy. Metallic iron nuggets or slabs can be produced from manganiferous ores or concentrates. Manganese can be caused to enter the nugget or slab or the slag by adjusting the furnace temperature. Titaniferous ores or concentrates can be used to produce metallic iron slabs or nuggets and a titanium-rich slag.

The invention relates to the technical field of mapping, in particular to a method for measuring image and inspecting quantity under the light detection and ranging (LiDAR) three-dimensional environment, comprising the following steps of: respectively manufacturing a digital surface model (DSM), a digital evaluation model (DEM) and a digital ortho image (DOM) according to multiple sensor data obtained by the LiDAR system, respectively layering and partitioning the DSM, the DEM and the DOM in advance, laminating the DSM, the DEM and the DOM to construct a three-dimensional environment, three-dimensionally measuring mark and intersecting, acquiring and cataloging digital line graphic (DLG) elements, and inspecting quality of the DLG. The invention breaks through the limitation that photogrammetric survey needs complex flow chart of data processing and professional photogrammetric survey equipment and software to construct stereopair by two photos, solves the problem that the LiDAR system directly generates the DLG products, shortens the period of DLG production by the LiDAR system, largely improves the practicability and the use value of the LiDAR system, and provides the base for the large-scale application of the LiDAR system in mapping, electricity, city planning, geology and design of road and railway.

The invention relates to a technique method for directly producing sponge iron by carrying out deep reduction on extracted vanadium tailings, belonging to the field of iron making. The method adopts brown coal as the reducing agent, and simultaneously CaO is added as slag former and used for increasing alkalinity to synergize with Na2O and K2O in the tailings to react with SiO2 and Al2O3 to generate zeolite-like stable mineral so as to boost extraction and separation of sponge iron in products of deep reduction. The products of deep reduction are subject to two-section ore grinding-two-section low intensity magnetic separation technique to obtain sponge iron with iron grade larger than 90% and TiO2 smaller than 0.20%. The invention is simple in technique and easy to control, and has large reserves of raw materials and low price; the product can be used as raw material for steel making; other impurities meet steel making requirements, the technique flow of processing iron ore into rolled steel is shortened, the environment pollution caused by sintering, pelletizing and blast furnace iron making of iron ore concentrate obtained by other methods can be avoided, and the invention has obvious environment benefit and energy conservation and consumption reduction effects.

The invention relates to a method for directly producing high-purity oxygen-free copper by pyrogenic process continuous refining of scrap copper, and belongs to the technical field of non-ferrous metallurgy. The method comprises the following steps: by taking scrap copper as a raw material; analyzing the component characteristics of each batch of raw material, and then preparing into a mixture, wherein the mass percent of a copper element in the mixture is greater than or equal to 93%; adding metaphosphate or phosphorus pentoxide and flux to the mixture; refining by oxidation; stewing and drossing after oxidation is finished, and then orderly carrying out reduction refining and refining agent refining under an agitation state, so as to obtain the high-purity oxygen-free copper of which the copper content is greater than or equal to 99.95% and the oxygen content is smaller than 0.003%, wherein the electrical resistivity of the obtained copper wire after drawing is below 0.017241omega/(mm), and the relative electrical conductivity is over 100% of International annealed copper standard (IACS). The method is strong in flexibility, significant in refining effect, and applicable to different components of scrap copper materials; the scrap copper can be used for directly making a rod after being refined. Compared with the traditional pyrogenic process smelting-electrolytic refining-copper cathode purification process, the method disclosed by the invention has the beneficial effects that the flow is shortened, the cost is reduced, the energy is saved, and continuous operation is achieved.

A method for visualization of product build which includes compilation of a virtual temporal configuration of an in-process assembly and visualization of the results using three-dimensional representations of the affected products and associated resources. An illustrative embodiment of the method includes formulating a plurality of installation plans each adapted to direct production of a portion of a product within a build sequence of the product and enabling three-dimensional virtual visualization of a temporal build state of the portion of a product for each of the installation plans.

The invention discloses a composite phase change heat exchanger with a medium-pressure and low-pressure evaporator, which comprises the medium-pressure and low-pressure evaporator and a steam header which are communicated by an ascending pipe and a descending pipe, a water feeding pipe and a steam outputting pipe are arranged on the steam header, an upper section of the composite phase change heat exchanger is positioned in a wind channel of an original air preheater, and a lower section of the composite phase change heat exchanger is positioned in a back flue channel of the air preheater; an automatic control device of the composite phase change heat exchanger adjusts and controls the heat exchange volume of the evaporator and the wall temperature of the lower section of the composite phase change heat exchanger. The composite phase change heat exchanger not only directly produces low-pressure or medium-pressure steam by using the recycled heat through a steam generating device and provides heat usage as a heat supply, but also controls the thermal equilibrium among the heat exchange volumes of the flue gas, the medium-pressure and low-pressure evaporator, a coal economizer and the wall of the air preheater by adjusting the steam flow of the steam outputting pipe of the steam header through the automatic control device, and consequently leads the flue gas temperature at the outlet to be higher than a flue gas acid dew point on the lower section wall surface of the composite phase change heat exchanger, avoids moisture condensation and achieves the purpose of utilizing waste heat of the flue gas to the utmost degree.

The invention relates to a process for continuous steelmaking from a ferriferous material. A molten pool is formed in a steel-smelting furnace at first, and carbonic material and oxygen are insufflated to form foaming slag; the ferriferous material and a fluxing agent are added into the smelting furnace to be molten and reduced, oxygen is insufflated into the molten steel so as to reduce the carbon content in the molten steel, the temperature of the molten steel is risen, and the molten steel is stirred with the generated CO gas; high temperature oxygen or oxygen-enriched air is insufflated and burns with CO gas generated in the smelting furnace; and the molten steel continuously flows into an oxygen blowing furnace through a siphon nozzle, and a small quantity of the fluxing agent is added into the oxygen blowing furnace so that slag formation, desulfurization and dephosphorization are performed, the C content and the temperature in the molten steel are further adjusted through blowing oxygen by an insertion oxygen lance, therefore, the obtained molten steel is directly supplied for an LF refining furnace or an RH refining furnace. The invention has the advantages that the productivity equipment including a suspended pre-reduction furnace, the smelting furnace and the oxygen blowing furnace, the investment for devices and capital construction is saved, the land is saved, the physical distribution is simplified, and the continuous production and the automatic control are facilitated.

A selective laser sintering quick manufacturing of the mold comprises CAD three dimension model design, storing STL files after treatment by the section software, sending the STL data to SLS quick forming machine. Spreading a composite powder of polyamide and copper on the power bed of selective laser sintering machine, with copper powder grain side 200--400, their weight ratio ranging 2:1-7:1, scanning and sintering in the selected zone of the laser harness, laser speckle 10-250 mum, scanning distance 0.04-0.1mm, scanning speed 1000- 3000mm/s, single layer thickness 70-150 mum, repeating till the formation of the complete mold inlaid, coating the surface with epoxide resin or acrylic acid series solidification system, polishing the surface thereafter. It is simple in process, short in processing period, low in cost, suitable for small volume plastic parts pilot run, testing and production.

A novel process is described for producing esters of linear monocarboxylic acids containing 6 to 26 carbon atoms, by reacting vegetable or animal oils, neutral or otherwise, with monoalcohols containing 1 to 18 carbon atoms in the presence of a catalyst selected from: mixtures of titanium oxide and alumina having formula:

(TiO_x)_y(Al₂O₃)_1-y

where x has the value 1.5 to 2.2 and y, representing the weight ratio of the two oxides, has a value of 0.005 to 0.995; mixtures of zirconium oxide and alumina having formula:

(ZrO_x)_y(Al₂O₃)_1-y

where x has the value 1.5 to 2.2 and y has a value of 0.005 to 0.995; and mixtures of antimony oxide and alumina having formula:

(SbO_x)_y(Al₂O₃)_1-y

where x has the value 1.2 to 2.6 and y has a value of 0.005 to 0.995, in order to directly produce, in one or more steps, an ester for use as a fuel and a pure glycerin.

The present invention relates to a superplastic forming method for the titanium plate specially used for the plate type heat exchanger, which belongs to the field of mechanical processing technology. The present invention comprises the following steps that spongy titanium is chosen to be the melted raw material; the spongy titanium is placed in a vacuum plasma smelting furnace to be directly cast into plate base; the plate base forms a plate of a thickness of 2.0 to 2.4 mm after the process of heating, hot rolling, acid and alkali washing; second heating, hot rolling and acid and alkali washing and annealing; the plate of a thickness of 2.0 to 2.4 mm after the annealing in the vacuum smelting furnace forms a titanium plate of a thickness of 0.5 to 0.6 mm after the process of cold rolling, cleaning, second annealing and cold rolling, acid and alkali washing and third annealing. The present invention adopts the process that the spongy titanium which contains oxygen, iron and nitrogen of comparatively high content is directly processed into the titanium plate base in the plasma smelting furnace and directly rolled into the plate without forging and pressing.

Managing hydrates in a subsea includes a host production facility, a production cluster comprising one or more producers, a water injection cluster comprising one or more water injectors, a water injection line, and a single production line for directing production fluid from the one or more producers to the host production facility. The methods comprise placing a pig in the subsea production system, shutting in production from the producers, and injecting a displacement fluid into the subsea production system in order to displace the hydrate inhibitor and any remaining production fluids in the production flowline and to further move the pig through the production flowline. The method may also include further injecting displacement fluid into the subsea production system in order to displace the hydrate inhibitor and pig through the single production line and to the host production facility.

The invention discloses a method for recycling waste lead-acid cells to directly produce lead oxide, belonging to the wet-process metallurgical field of recycling lead from lead-containing materials and waste lead-acid cells. The method for recycling waste lead-acid cells to directly produce lead oxide comprises the following steps of: carrying out a reaction on diachylum, lead powder and sodium hydroxide solution in the presence of catalyst to obtain a mixed solution containing NaHPbO2, sodium sulfate and sodium hydroxide, and un-reacted lead powder and impurities, and separating the mixed solution; cooling and filtering the mixed solution to obtain PbO crystals, and an alkaline solution containing Na2SO4 and the residual NaHPbO2; adding the NaOH to the solution, re-cooling the mixture to separate out sodium sulfate solid and obtain the NaOH solution containing the residual NaHPbO2; and carrying out re-dissolving-filtering-re-crystallizing to the PbO in the NaOH solution with mass concentration of 15-50% to obtain the pure lead oxide solid. The lead recovery ratio is generally between 98.5% and 99.2%, and the purity of the lead oxide is as high as 99.99% or higher.

The invention discloses a coal gangue biomass solid briquettes fuel, which comprises the following components in percentage by weight: 40 to 85 percent of coal gangue with the combustion heat value higher than 2,000 kilocalories, 10 to 50 percent of agricultural organic waste, 1 to 5 percent of combustion improver, and 1 to 5 percent of adhesive. The method for preparing the coal gangue biomass solid fuel comprises the following steps: crushing the coal gangue with the combustion heat value higher than 2,000 kilocalories; and adding the agricultural organic waste, the combustion improver, and the adhesive in a certain proportion to directly produce the coal gangue biomass solid forming fuel with a stable combustion value by adopting forming machinery. The solid forming fuel is prepared by reasonably using a large quantity of agricultural organic waste and the coal gangue in a certain proportion; and the combustion heat value is stable. The biomass solid forming fuel can be used as the fuel of boilers, stoves and other combustion devices, and has good social benefits, environmental protection benefits, and economic benefits.

The invention provides a method for directly producing high-purity electronic level cobaltous sulfate by using cobalt-containing waste, in particular a process for producing cobaltous sulfate by using cobalt-containing waste. The method comprises the steps of: checking and classifying raw materials, wet-milling and size-mixing, acid-decomposing, filtering, washing, separating, and extracting copper sponge. The method is characterized by also comprising the steps of: removing iron with a goethite process, extracting P2O4 and removing impurities, separating nickel from cobalt, extracting N235, purifying, concentrating and crystallizing. The high purity electron level cobaltous sulfate is directly regenerated by using various kinds of cobalt wastes, the requirement of the modern high-technology industry on high purity of the cobaltous sulfate is met; the total recovery of the cobalt is higher than or equal to 98 percent; various usable elements can be comprehensively recycled, and coppersponge, tungsten carbide, iron hydroxide and nickel carbonate can be regenerated while the electronic level cobaltous sulfate as a main product is regenerated. The invention has the advantages of comprehensively utilizing waste cobalt resources, recycling the wastes, improving the enterprise benefit, and being beneficial to the development of energy conservation, emission reduction, environment protection and circular economy.

The invention relates to equipment and a method for producing an imitation stone-texture ceramic tile. The equipment comprises a hydraulic machine, a tile pulling rod, a material pushing frame of a secondary material spreader and a composite base material hopper, wherein the tile pulling rod is arranged at the front end of the composite base material hopper on the material pushing frame of a secondary material spreader and consists of two tile pulling arms and a transverse rod. The equipment is characterized by also comprising a tile pulling mechanism driving the tile pulling rod and a powder removing mechanism which is used for removing powder and arranged between the hydraulic machine and the composite material hopper. The invention also provides a secondary material spreading device and a method thereof, which not only can solve the problem of directly producing a ceramic tile with a clear texture effect pattern imitating a natural stone without a polishing working procedure difficult to be realized in a counter steer mode, particularly a rough surface or dull surface micro powder ceramic tile with the texture effect pattern imitating the natural stone, but also can ensure that the texture effect pattern imitating the natural stone in a micro powder material can be kept more complete.