167results about How to "Improve purity" patented technology

The present invention provides a manufacturing method for the production of peptides that are grown in insect cell lines. The peptides are grown in insect cell cultures that are infected with baculovirus particles in a culture supplemented with a lipid mixture. The peptides are then isolated from the insect cell culture using a method that employs a tangential flow filtration cascade. The isolated peptides are glycopeptides having an insect specific glycosylation pattern. The glycopeptides may then be conjugated to a modifying group via linkage through a glycosyl linking group interposed between and covalently attached to the peptide and the modifying group. The conjugates are formed from glycosylated peptides by the action of a glycosyltransferase.

The invention discloses a wheel disc forging and a manufacturing method thereof and belongs to the technical field of mechanical manufacture. The manufacturing method further optimizes material components, controls the upper limits of C and Mn content, improves Ni content, reduces content of harmful P and S, reduces Si content and temper brittleness of Mn, utilizes an electroslag remelting process so that the purity of molten steel is improved, and utilizes post-forging heat treatment comprising two normalizing processes so that materials are further homogenized and grains are fined. Raw materials adopted by the manufacturing method comprise C, Mn, Si, P, S, Cr, Ni, Al, Cu and Fe. The manufacturing method comprises the following steps of electrode blank smelting, electroslag remelting smelting, steel ingot annealing, steel ingot forging, post-forging heat treatment, property heat treatment, and property and microstructure examination. The wheel disc forging obtained by the manufacturing method and the manufacturing method have the advantages that a ratio of chemical components is reasonable; material purity is high; forging effects on the core are good; density of the metal microstructure is good; and the problems that a wheel disc forging obtained by the existing manufacturing method is unqualified in the forging flaw detection and a mechanical property especially such as a material ductile-brittle transition temperature does not satisfy the requirement are solved.

The invention relates to the technical field of brewing of wine and fruit wine, in particular to an aroma-enhancing brewing technology of table grape brandy. Through mixed fermentation of preferred Hanseniaspora uvarum and Saccharomyces cerevisiae, the content of a grape variety aroma component and the content of fermentation esters in fermented brut are improved, by optimizing parameters of a secondary distillation technology, off-flavors of fusel and organic acids are removed, and then optimal integration of alcohol-decreasing ageing and blending technologies is conducted. The aroma-enhancing brewing technology of the table grape brandy comprises the operation steps of (1) table grape raw material control, (2) cold soaking before fermentation, (3) grape juice clarification, (4) mixed fermentation, (5) brut stabilization treatment, (6) distillation, (7) alcohol-decreasing treatment of distilled brut, (8) wine ageing treatment, (9) clarification and stabilization, (10) blending and allocating, and (11) bottling.

The invention relates to a method for improving the purity of nickel-based superalloy, which belongs to the field of alloy smelting. The method for improving the purity of nickel-based superalloy comprises the following process steps: increasing a beam to 200 mA at a speed of 1 mA/s under a vacuum degree of less than 0.05 Pa in the furnace body of an electron beam smelting device and a vacuum degree of less than 0.005 Pa of an electron gun body, and bombarding the beam onto a nickel-based superalloy substrate until the alloy is completely smelted; after the nickel-based superalloy substrate is completely smelted, continuing to increase the electron gun beam to 400 mA at a speed of 2 mA/s, adjusting the beam spot radius of the electron beam to 15*15, smelting the alloy for 5 minutes, and then cooling. According to the method, O, N and S in the alloy as well as harmful impurity elements such as As, Sb, Si, Pb and Bi can be greatly reduced, thus improving the purity of the alloy in the aspect of reducing the contents of the harmful elements, and then improving the comprehensive performance of the nickel-based superalloy.

The invention discloses a preparation method of spherical 304 stainless steel powder. Materials are mixed according to components of 304 stainless steel, a 304 stainless steel alloy bar is prepared with forging and machining preparation methods and then is machined into a 304 stainless steel electrode bar, the electrode bar is loaded into a reaction chamber, the reaction chamber is subjected to vacuum pumping, pre-vacuum-pumping treatment is performed on atomizing equipment, the reaction chamber is filled with inert gas in a certain ratio, and the oxygen content of the atmosphere is smaller than 0.1wt%; the electrode bar is sent into an atomizing chamber through a feeding system, the end surface of the electrode bar is heated by a plasma torch, the end melts uniformly, metal droplets are prepared under the centrifugal effect of a rotating electrode and then are instantaneously solidified into spherical metal powder, and finally, the powder is packaged through multi-layer vacuum heat sealing. The 304 stainless steel powder prepared with the method is not oxidized easily at the high temperature and is high in sphericity degree, free of hollow powder and satellite powder and controllable in particle size distribution.

The invention belongs to the technical field of machining and manufacturing of special alloy materials, and particularly relates to a production method of a nickel-based GH4080A alloy wire rod. The production method comprises the following steps of material preparing, vacuum induction smelting, electroslag remelting, heat treatment, forging cogging, billet trimming and grinding, heat treatment, wire rolling, on-line solid solution and finishing. According to the production method of the nickel-based GH4080A alloy wire rod, a vacuum induction melting furnace and electroslag remelting furnace smelting technique is used for obtaining electroslag ingots, the electroslag remelting adopts an appropriate slag system proportion and a smelting argon protection method, which can effectively solve the burning loss problem of easy-to-oxidize elements of Al and Ti in the materials, and remarkably improve the purity of the materials; the Al and Ti retention rate of an induction electrode is increased to more than 96% from about 80% in the past; the material performance is improved; the qualified rate of finished products is high; the cost of raw materials is less; the production process is easyto control; the high-temperature performance is good; the surface forming is good; the yield is high; the grinding weight loss is less; and the controllability is good.

The invention provides a high-strength cast magnesium-lithium alloy and a preparation method thereof. The alloy contains the following components in percentage by weight: 7-12% of Li, 4.2-8.5% of Al, 3.2-6.5% of Zn, 0.2-1.1% of Y, 0-1% of Ca and the balance of Mg and unavoidable impurities. The preparation method comprises a step of smelting and a step of thermal treatment. According to the invention, the elements Al, Zn, Y and Ca are added into the magnesium-lithium alloy to hinder the melt combustion; a long-period structure is introduced into the solidification structure of the magnesium-lithium alloy as a strengthening phase; and more strengthened precipitated phases are obtained after follow-up thermal treatment so as to prepare the high-strength cast magnesium-lithium alloy with relatively high thermal stability.

Disclosed is a method of reclaiming a multilayered film which comprises a plastic layer including polyester (PET), polypropylene (PP), and polyethylene (PE) as main components, and an aluminum layer. The method comprises selective dissolution of aluminum, separation using a difference in specific gravity, selective extrusion using a difference in melting point, and selective dissolution using an organic solvent.

The invention provides application of 3-(2-aminoethylamino)propyltrimethoxysilane to prepare ultra-bright fluorescent silicon quantum dots. The novel silicane molecule 3-(2-aminoethylamino)propyltrimethoxysilane is applied to prepare silicon quantum dots, and the prepared silicon quantum dots have the advantages of high quantum-dot yield (about 80%), high purity, good stability, good water solubility, pH response property, surface chemical paintability, low cell toxicity, synthesis simpleness and the like.

The invention discloses an electroslag remelting method for high-purity austenite nitrogenous stainless steel for nuclear power. The method comprises the following steps: (1) selecting a cylindrical metal electrode for electroslag; (2) treating the metal electrode by adopting a machining method; (3) carrying out welding treatment and heating treatment on the metal electrode and a stainless-steel false electrode for the electroslag; (4) carrying out slag melting treatment by selecting a slag system which contains 50%-60% (by weight) of CaF2, 15%-25% (by weight) of Al2O3, 10%-20% (by weight) of CaO, 5%-10% (by weight) of MgO and 3%-6% (by weight) of SiO2; (6) carrying out feeding treatment; (7) carrying out die cooling. According to the austenite nitrogenous stainless steel prepared by the method, the forming of a steel ingot surface is good, and the inclusion content is low and can reach that the inclusion content of a coarse series of a class A is not higher than 0.5, the inclusion content of a fine series of the class A is not higher than 0.5, the inclusion content of a coarse series of a class B is not higher than 0.5, the inclusion content of a fine series of the class B is not higher than 0.5, the inclusion content of a coarse series of a class C is not higher than 0.5, the inclusion content of a fine series of the class C is not higher than 0.5, the inclusion content of a coarse series of a class D is not higher than 0.5, and the inclusion content of a fine series of the class D is not higher than 1.0.

The invention discloses an edible oil presser with convenient graded pressing. The edible oil presser comprises a first pressing box, a second pressing box, a third pressing box and an oil outlet pipe. A feed hopper is arranged on the upper side of the first pressing box, the second pressing box is arranged on the right side of the first pressing box, and a second motor is arranged on the upper side of the second pressing box. The third pressing box is arranged on the right side of the second pressing box, and a hydraulic cylinder is arranged on the upper side of the third pressing box. A third gear is arranged at the upper end of a fixing rod, a third motor is arranged on the upper side of a moving block, and a third rotating rod is arranged on the inner side of the moving block. A filterscreen is arranged below the moving block, and the oil outlet pipe is arranged on the right side of the third pressing box. According to the edible oil presser with convenient graded pressing, a first connecting shaft drives a squeezing block to rotate through a first rotating rod, the squeezing block is made to grind materials, the hardness of the materials can be conveniently lowered, and the size of the materials is smaller.

The invention discloses a TMCP type high strength and toughness high fatigue resistance weather-proof bridge steel plate, and a preparation method thereof. The TMCP type high strength and toughness high fatigue resistance weather-proof bridge steel plate comprises, by weight, 0.05 to 0.08% of C, 0.12 to 0.18% of Si, 1.4 to 1.6% of Mn, 0.045 to 0.058% of Nb, 0.01 to 0.02% of Ti, 0.30 to 0.35% of Cu, 0.22 to 0.30% of Cr, 0.45 to 0.55% of Ni, 0.02 to 0.04% of Al, 0.05 to 0.12% of Mo, P<=0.009%, S<=0.005%, and the balance Fe and other unavoidable impurities. The advantages are that: product performance is excellent; the yield strength is larger than 500MPa; -60 DEG C crack-tip opening displacement index is 0.3mm or higher; 10 million time fatigue strength is 170MPa or higher; and corrosion weight loss rate is 3.0g/(m2*h) or lower.

The invention discloses a textile cloth vat with good dip-dyeing effect, comprising a vat body; a partition is fixedly connected to the bottom of an inner cavity of the vat body, a first motor is fixedly connected to the axial part of the bottom of the inner cavity of the vat body, an output shaft of the first motor penetrates the partition and is fixedly connected with a stirring rod, a filter barrel is arranged in the inner cavity of the vat body, the top of the surface of the stirring rod penetrates the filter barrel, is extended through an inner cavity of the filter barrel and is fixedly connected with stirring blades, and a rotary plate is fixedly connected to the surface of the filter barrel. Impurities in dye within the vat body can be blocked outside of the filter barrel, some impurities in the inner cavity of the filter barrel can be sucked to the inner surface of the filter barrel, the purity of cloth processing dye is greatly improved, dip-dyeing effect of processed cloth is improved, textile quality is improved, and great economic benefit is brought to enterprises.

The invention provides a device in a machine room for ventilation and purification, comprising a wind inlet device, a wind outlet device and a temperature-control system; the wind inlet device consists of a wind inlet mechanism and a wind duct pipe; the wind duct pipe is arranged on the external side wall of the machine room wall; the upper end of the wind duct pipe is open for air inlet and the lower end thereof is connected with the wind inlet mechanism; the wind inlet mechanism is internally provided with an air filter and a wind inlet DC fan; the air filter is arranged at the outlet of the lower end of the wind duct pipe; the wind inlet DC fan extends along the central line direction of the air filter and is arranged in the wind inlet opened on the machine room wall; the wind outlet device is provided with a wind outlet DC fan which is arranged in the wind outlet opened on the machine room wall; and the wind outlet is higher than the wind inlet by at least 1 meter. The device can replace the air conditioner in the machine room, can reduce the temperature in the machine room, can ensure that the base station equipment can run safely, reliably and stably, and can greatly reduce the electric energy consumption, thus greatly reducing the running cost of the communication and telecommunication enterprises; simultaneously, the device has active propulsion function on the energy-saving and emission reduction, environmental protection and ecology.

The invention relates to a method for making magnetic paper by in-situ composing, in particular to a method that magnetic paper pulp fibers are prepared by the in-situ composing and then the magnetic paper pulp fibers are made into the magnetic paper. The method is characterized in that chemical wood pulp is scattered into distilled water to prepare a sizing agent suspending agent which is put into a heating container and is stirred evenly; the sizing agent suspending agent which is heated is added with ferrous chloride and anhydrous ferric chloride; sodium hydroxide and polyethyleneimine are added and are stirred in an oxygen-free environment; afterwards, the mixture is washed to remove the magnetic particles on the surface of sizing agent fibers of the chemical wood pulp in order to obtain the magnetic paper pulp fibers; the prepared magnetic paper pulp fibers are dehydrated to obtain wet magnetic paper sheet which is pressed and dried to obtain the magnetic paper. The method has simple facilities, moderate reaction conditions, low price of the raw materials, simplified technique process, short reaction time, simple operation, easy industrial production, easy control of core formation in the reaction process and high degree of purity of products.

The invention provides a method for preventing cold steel in a vacuum tank from bonding in the RH vacuum cycle degassing process. The method comprises the steps that (1) a steel ladle adopts a normaltransfer ladle and the transfer time is less than 60 minutes; (2) molten steel enters an RH refining furnace, the temperature of deoxidized molten steel is controlled to be greater than 1620 DEG C, and the temperature of non-deoxidized molten steel is controlled to be greater than 1600 DEG C; (3) when the RH refining furnace is subjected to OB temperature rise or OB forced decarburization, the vacuum degree in the vacuum tank is 5-15 kpa and the circulation gas flow is 1400 NL/min; (4) in 5 mins when the decarburization of the RH refining furnace is carried out, the circulation gas flow is controlled at 1600 NL/min, and during the period from the 5 mins to the time the decarburization is finished, the circulation gas flow is controlled at 2000 NL/min; (5) 3 mins after aluminum is added tothe molten steel for deoxidation, other alloys are added; (6) after the molten steel is alloyed, 200 kg desulfurizing agent is added; (7) the temperatures of an upper part tank and a hot bending pipeare increased by employing a top gun to heat, wherein the gun position of the top gun is 8.5 m, the flow of gas is 200 NM<3>/h, and the flow of oxygen is 220 NM<3>/h; and (8) when the pure degassing cycling time of the molten steel is greater than 8 mins, treatment is finished. The cold steel in the vacuum tank can be prevented from bonding effectively, and the operation rate of the RH refining furnace is raised.

The invention discloses an aluminum scrap meltback purification process which comprises (1) utilizing a magnetic separator to remove iron impurities in aluminum scraps which are dried and smashed after manual selection; (2) enabling the aluminum scraps after primary impurity removal to be melt in an aluminum scrap meltback furnace, and when the temperature in the furnace reaches 710-720 DEG C, introducing nitrogen to blow high-efficiency active flux into a melting chamber to perform composite refining to remove gas, non-metal impurities and the like in the flux; (3) adding slag beating agents into aluminum liquid to perform slag beating, and utilizing a foam ceramic filter screen to purify aluminum alloy liquid flowing to a using chamber; (4) in the using chamber, utilizing a multipore blowing head (breathable ceramic brick) to smash the nitrogen into fine air bubbles, and enabling hydrogen and micro-impurities in the aluminum alloy liquid to be brought out by increasing contact area and time of the air bubbles and the flux; and (5) standing the aluminum alloy liquid flowing to the using chamber for 30-45 minutes, then removing separated floating fine impurities in the flux and performing heat preservation for standby application.

The invention discloses a triple smelting process of a difficult-to-deform nickel-based high-temperature alloy GH 4151. The triple smelting process comprises the following steps of: firstly, weighingraw materials of the GH4151 according to the component requirements of the GH4151; then, sequentially carrying out vacuum induction furnace smelting, protective atmosphere electroslag remelting smelting and vacuum consumable remelting smelting according to set process parameters; carrying out stress relief annealing treatment on an electrode and a consumable ingot in a triple smelting process; andfinally, stably preparing a GH4151 consumable ingot with the maximum size of phi 508mm. According to the GH4151 consumable ingot obtained by the triple smelting process disclosed by the invention, the cracking problem of the large-size consumable ingot is solved; the dendritic segregation degree of the prepared phi 508mm consumable ingot is relatively low and the content of sulfur and impuritiesis also greatly reduced; and the metallurgical quality of the GH4151 alloy is improved and a foundation is laid for preparing large-specification bars and large-size disc forged pieces of the GH4151 alloy.

Disclosed is an optimized system for more efficiently and economically producing terephthalic acid. The system employs an evaporative removal step downstream of oxidative digestion. The evaporative removal step removes a portion of the liquid phase and promotes precipitation of certain aromatic impurities. By promoting precipitation of certain aromatic impurities, the amount of the precipitated impurities in the recycled solvent is advantageously reduced.

The invention discloses a narrow-range production control method of rare earth elements La and Ce in rare earth bearing steel. The control method comprises the steps of converter smelting, LF ladle refining, VD vacuum refining, and continuous casting. At the step of LF ladle refining, a high-alkalinity refining slag system is adopted; during the early and middle period, deoxidation and desulfuration are facilitated through bottom-blowing gas forced mixing, and inclusions in molten steel are adsorbed; and during the later period of LF ladle refining, a reducing atmosphere can be maintained through bottom-blowing gas weak mixing to prevent secondary oxidation of the molten steel; and before VD refining vacuum treatment, a steel rare earth containing barrel is used for conducting rare earth alloying, then the inclusions in the steel are promoted to be modified and float up through VD high-vacuum treatment, soft blowing and still standing, and the purity of the molten steel is improved. Through the narrow-range production control method of the rare earth elements La and Ce in the rare earth bearing steel, the problems that rare earth elements are active and easy to oxidize and cannot be added to the steel accurately and narrow-range control cannot be achieved are avoided; and the production efficiency of the bearing steel containing rare earth can be substantially improved, and theproduction cost can be greatly reduced.

The invention discloses a method for directly generating a vortex beam with an adjustable order in a cavity, and the core of the method is that a laser output end face of a laser is provided with circular micropores through etching; the circular micropores are adjusted to the center of a laser beam; circular space loss modulation is formed at the center of the laser beam, and the vortex beam with a specific order is enabled to directly oscillate in the cavity and to be outputted. Through the employing of the circular micropores with different diameters and the adjustment of the relative position of the circular micropores and the center of the beam, the method can achieve the continuous adjustment of the order of the vortex beam in a large range, wherein the adjustment range can reach dozens of orders or hundreds of orders. The vortex beam generated through the method is high in purity, and is stable in transmission.

The invention relates to para-aramid fine denier fiber and a preparation method thereof. The method comprises the following steps: dissolving a para-aramid polymer in a strong acid, filtering twice, defoaming, performing tertiary filtration, spinning, stretching, cooling to solidify, rinsing, drying and rolling to finally prepare the finished fiber. In the preparation method, a high shear double screw extruder and a continuous film defoaming device are adopted, multiple filtering working procedures are adopted, the filtering precision characterized by the filtering plugging value Kw which is no more than 150, the defoaming purity, the spinning temperature, the stretching condition and the like are strictly controlled, the global optimization of process steps and process conditions is performed, the method is practical and is high in operability, and the para-aramid fine denier fiber with good physical properties can be prepared. The para-aramid fine denier fiber has the advantages of high strength and good quality, the fineness is 30-100D, the tensile strength is no less than 22CN/dtex, the elongation at break is no less than 2.5% and the initial modulus is no less than 550CN/dtex.

The invention discloses a casting process of an ultralow-temperature valve casting. The casting process comprises the steps of production preparation, smelting, casting, sand removing, finishing and the like. The content of ferrite in austenite is reduced by reducing the chromium/ nickel equivalent ratio so as to avoid or reduce the ferrite embrittlement and martensite transformation of austeniticstainless steel. The element nitrogen is introduced to reduce the content of harmful elements sulfur and phosphorus. Silicon-calcium alloy and rare earth elements are introduced during molten steel deoxidation, so that the oxygen content and the impurity ratio are reduced. Measures such as the outage of a slagging process are adopted to improve the low-temperature impact resistance of the casting. In addition, more improvements have been made in the wall thickness difference of the casting, molten steel purification, a casting system, casting dead head cutting, shot blasting operation, heat treatment and the like since the start of the design of the casting process. Check results indicate that the valve casting produced by the casting process is stable in size stability and sealing performance after being subjected to treatment at the temperature of -196 DEG C, has the plasticity and toughness in a low-temperature environment, and is better in comprehensive usability.

The invention belongs to the technical field of hyaluronic acid gel preparation, in particular to a preparation method of a polyvinyl alcohol crosslinked hyaluronic acid gel, and the preparation method comprises the following steps: S1, preparing a polyvinyl alcohol solution; S2, preparing a hyaluronic acid solution; S3, adding the polyvinyl alcohol solution into the hyaluronic acid solution, stirring and mixing uniformly; S4, freezing and thawing the mixed solution; S5, repeating the step S4 for many times; and S6, obtaining the polyvinyl alcohol crosslinked hyaluronic acid gel after cleaning. The invention also provides the polyvinyl alcohol cross-linked hyaluronic acid gel prepared according to the method, the polyvinyl alcohol cross-linked hyaluronic acid gel has high purity and transparency, can be used for producing medical or preventive products, is used for injection, tissue repair and tissue enhancement of animals, especially human beings, has good biocompatibility and degradability, and is clinically safe.

The present invention provides a two-dimensional code positioning method in a low signal-to-noise ratio environment. According to the invention, the Beamlet Transformation is introduced, and the method is strong in anti-noise capability. Therefore, the line features of a target can be accurately identified in the strong noise environment. As a result, the purity of an edge image is improved. Meanwhile, the method provides a basis for the decoding of two-dimensional codes in the low signal-to-noise ratio environment.

The invention discloses a wire rod for a 2000 MPa-grade spring and a production method of the steel wire rod. The steel wire rod is prepared from the following chemical components of, 0.53%-0.57% of C, 1.51%-1.59% of Si, 0.65%-0.72% of Mn, 0.63%-0.7% of Cr, 0.01%-0.1% of Cu, 0.01%-0.1% of Ni, 0.01%-0.05 % of Mo, 0.01%-0.05% of Nb and the balance Fe and impurities. In a production method, a continuous casting reduction rate is 6.6%-8.7%, an initial rolling temperature of high-speed wire rolling is 910-950 DEG C, a finish rolling outlet temperature is less than or equal to 1020 DEG C, a spinning temperature is 820-880 DEG C, and a cooling speed of Stelmor cooling is 1.2-2.0 DEG C 11. The steel wire rod is of a bainite and pearlite structure, a tensile strength is 950 Mpa-1150 MPa, the percentage reduction of area is larger than or equal to 50%, and the steel wire rod can be used for preparing a spring with a strength of 2000 MPa.

The invention discloses nitrogen and phosphorus co-doped carbon coated MoO3-x and a preparation method thereof. Phosphomolybdic acid and N-methyl imidazole serve as raw materials, a yellow precipitateis prepared through precipitation in the preparation process, and impurities in the process products are washed with a mixed solution of cyclohexane and ethanol, so the purity of the reaction products is improved; a nitrogen and phosphorus co-doped carbon coated MoO3-x composite material is prepared by a calcining method; and the whole preparation process is simple in technology, loose in experimental condition, low in cost and suitable for large-scale production. The nitrogen and phosphorus co-doped carbon coated MoO3-x composite material is molybdenum trioxide containing oxygen vacancy, theoxygen vacancy serves as a shallow donor and the density of current carriers can be increased, so that the electrical conductivity of the material can be improved. According to discovery from that the nitrogen and phosphorus co-doped carbon coated MoO3-x composite material is subjected to charge and discharge capacity test under 100 mA/g, the specific discharge capacity and the specific charge capacity are 1077 mAh g<-1> and 787 mAh g<-1>, and the prepared composite material has excellent electrochemical activity.

The invention provides a production method of spheroidal graphite cast iron for a planet carrier and particularly discloses a production method of heat-resistant spheroidal graphite cast iron for a fuel inlet housing. The production method comprises a material preparation process, a smelting process, a spheroidizing process, an inoculating process and a casting process. The heat-resistant spheroidal graphite cast iron for the gas inlet housing comprises the following components in percentage by weight: 3.00 to 3.40% of C, 3.60 to 4.00% of Si, 0.30 to 0.60% of Mn, not greater than 0.050% of P, not greater than 0.020% of S, 0.010 to 0.030% of Re, 0.020 to 0.060% of Mg, 0.40 to 0.70% of Mo, and the balance of iron. The heat-resistant spheroidal graphite cast iron for the gas inlet housing, produced by the method, is high in high-temperature strength and has oxidation resistance, anti-growth resistance and other heat-resistant performances.

The invention discloses a continuous casting production method of sulfur-containing and aluminum-containing high calcium steel. The continuous casting production method of the sulfur-containing and aluminum-containing high calcium steel includes working procedures of converter smelting, LF (ladle furnace) ladle refining, VD (vacuum distillation) vacuum refining and continuous casting. The continuous casting production method of the sulfur-containing and aluminum-containing high calcium steel uses high alkalinity refining slags in the earlier stage of the LF ladle refining process, thereby facilitating deoxygenation and desulfurization, and absorbing inclusions in steel liquid, and then reduces alkalinity of the refining slags in the middle and later stages, thereby inhibiting generation ofCaS, and improving the yield of Ca; and performs wire feeding process alloying and soft blow after vacuum breaking of the VD vacuum refining, achieves even steel liquid constituents and temperature for the steel liquid, facilitates upward floating of the inclusions in the steel liquid, improves purity of the steel liquid, achieves the upward floating of the inclusions in the steel liquid throughstanding, and further improves the purity of the steel liquid. The continuous casting production method of the sulfur-containing and aluminum-containing high calcium steel reduces occurrence rate of anozzle clogging problem in the continuous casting process of the sulfur-containing and aluminum-containing high calcium steel, and compared with a current traditional mold casting process, the continuous casting production method of the sulfur-containing and aluminum-containing high calcium steel can substantially improve production efficiency of the sulfur-containing and aluminum-containing highcalcium steel, and substantially reduces production cost.

Olanzapine and salts thereof are made by a process that utilizes an N-formyl olanzapine intermediate of formula (4) or a salt thereof.