86results about How to "Less process equipment" patented technology

A process for preparing a chewing gum wherein all of the gum base components and all of the chewing gum additives are charged, in any appropriate order, into a mixing apparatus and the apparatus operated at atmospheric pressure to obtain the chewing gum, subject to the limitation that the gum base does not contain a vinyl polyester as the sole polymer. In certain embodiments, the gum base comprises at least one environmentally or biodegradable polymer such as a polyester, a polycarbonates, a polyester amide, a polypeptide and a protein.

The invention provides a hydrocyanation process for the production of adiponitrile and other dinitriles having six carbon atoms, the process comprising:

• • a) forming a reaction mixture in the presence of at least one Lewis acid, said reaction mixture comprising ethylenically unsaturated nitrites having five carbon atoms, hydrogen cyanide, and a catalyst precursor composition, by continuously feeding ethylenically unsaturated nitrites, hydrogen cyanide, and a catalyst precursor composition;
  • b) controlling X and Z, wherein X is the overall feed molar ratio of 2-pentenenitriles to all unsaturated nitriles and Z is the overall feed molar ratio of hydrogen cyanide to all unsaturated nitrites, by selecting a value for X in the range from about 0.001 to about 0.5, and a value for Z in the range from about 0.5/1 to about 0.99/1, such that the value of quotient Q, wherein

is in the range from about 0.2 to about 10, wherein 3PN is 3-pentenenitriles and 4PN is 4-pentenenitrile; and

• • c) withdrawing a reaction product mixture comprising adiponitrile;
  • wherein the ratio of the concentration of 2-pentenenitriles to the concentration of 3-pentenenitriles in the reaction mixture is from about 0.2/1 to about 10/1;
  • wherein the catalyst precursor composition comprises a zero-valent nickel and at least one bidentate phosphite ligand; and

wherein the bidentate phosphite ligand is selected from a member of the group represented by Formulas I and 11 as described herein.

The invention provides a hydrocyanation process for the production of adiponitrile and other dinitriles having six carbon atoms, the process comprising:

• • a) forming a reaction mixture in the presence of at least one Lewis acid, said reaction mixture comprising ethylenically unsaturated nitriles having five carbon atoms, hydrogen cyanide, and a catalyst precursor composition, by continuously feeding ethylenically unsaturated nitriles, hydrogen cyanide, and a catalyst precursor composition;
  • b) controlling X and Z, wherein X is the overall feed molar ratio of 2-pentenenitriles to all unsaturated nitriles and Z is the overall feed molar ratio of hydrogen cyanide to all unsaturated nitriles, by selecting a value for X in the range from about 0.001 to about 0.5, and a value for Z in the range from about 0.5/1 to about 0.99/1, such that the value of quotient Q, wherein

is in the range from about 0.2 to about 10, wherein 3PN is 3-pentenenitriles and 4PN is 4-pentenenitrile; and

• • c) withdrawing a reaction product mixture comprising adiponitrile;
  • wherein the ratio of the concentration of 2-pentenenitriles to the concentration of 3-pentenenitriles in the reaction mixture is from about 0.2/1 to about 10/1;
  • wherein the catalyst precursor composition comprises a zero-valent nickel and at least one multidentate phosphorus-containing ligand;
  • wherein the multidentate phosphorus-containing ligand is selected from the group consisting of a phosphite, a phosphonite, a phosphinite, a phosphine, and a mixed phosphorus-containing ligand or a combination of such members; and
  • wherein the multidentate phosphorus-containing ligand gives acceptable results according to at least one protocol of the 2-Pentenenitrile Hydrocyanation Test Method.

The invention discloses a thermal power generation system and method with fused salt energy storage, power supply and heat supply functions. By arranging a bypass steam pipeline, a high-pressure condenser and a molten salt heater, excess steam heat energy generated by the load change of a power grid can be stored though molten salt. When the peak load of the power grid is reached, a molten salt energy storage power generation subsystem can participate in peak regulation of power supply of the power grid. In this way, the problems of peak regulation of the power grid, low utilization rate of power equipment and the like are solved, it is guaranteed that the power generation efficiency of the power generation system is equal to that of an existing thermal power generating unit, and the thermal power generation system and method have the outstanding advantages that energy storage and variable-load power supply are achieved, and high-efficiency power generation is guaranteed.

The invention discloses a U-shaped support punching blanking bending composite die. Blanking, bending and punching of a U-shaped support are completed through one die, production efficiency is high, used process devices are few, economic benefit is high, and the problem that an existing U-shaped support needs a blanking die, a bending die and a punching die and low production efficiency, large process device number and low economic benefit are caused is solved.

The invention relates to a method for preparing sulphoaluminate cement and coproducing sulfuric acid by reducing gypsum with sulfur gas. The method comprises the following steps: A, preparing gaseoussulfur; B, burdening: preparing dehydrated gypsum, bauxite, a siliceous correction material and an iron correction material into a raw material with uniform components; C, preheating and pre-reducing:preheating the raw material, feeding the preheated raw material into a reduction furnace, performing reduction reaction on the preheated raw material and the gaseous sulfur, performing gas-solid separation, feeding flue gas into a multistage suspension preheating system, and feeding the pre-reduced raw material into a rotary kiln; D, carrying out deep reduction and clinker sintering: performing adeep reduction reaction on the reduced raw material in the rotary kiln, and then performing high-temperature sintering to form sulphoaluminate cement clinker; and E, cooling the clinker, recycling heat, purifying to prepare sulfuric acid, adding gypsum and a combined material into the cement clinker, and processing to obtain sulphoaluminate cement products with different performance requirements.Compared with the prior art, the method has the following advantages: a large amount of industrial waste residues such as industrial gypsum can be consumed, limestone and natural gypsum resources canbe saved, and meanwhile, high-quality sulphoaluminate cement and industrial sulfuric acid products can be obtained.

The present invention relates to an ion-exchange fibre, its synthesis method and application. Said alkaline ion-exchange fibre adsorbent is acrylonitrile-methyl methacrylate-itaconate tripolymer containing amino functional group, can remote the acidic matter, transition metal ion and heavy metal ion from non-aqueous solution or non-aqueous solvent. Said invention is simple in preparation of product, and the adsorption volume of adsorbing acidic impurity from non-water is high, and its adsorption speed is high, its chemical property is stable. In the purification of lithium electrolyte by using said product the condition for removing impurity is moderate, at the same time of removing acidic impurity, the impurity into also can be removed.

The invention discloses a preparation method of a lithium ion phosphate/carbon composite material for a high-rate-capability lithium ion battery. The preparation method comprises the following steps: analyzing the iron content and the phosphorus content of a precursor ferrous phosphate powder; adding into mixed slurry of a lithium source, a ferrous phosphate precursor and a phosphorus source according to the molar ratio of Li:Fe:P=(1.02-1):(0.98-1):1, adding a proper amount of a liquid phase reducing agent and a conductive additive, performing reflux reaction at the boiling point temperature of the reducing agent, distilling under reduced pressure and recovering a reducing solvent to obtain a lithium ion phosphate precursor; and calcining under the protection of inert gas to obtain a LiFePO4/C composite anode material. Compared with other methods, the preparation method has the advantages of simple flow, short reaction time, simple process equipment, fine synthesis product particles, uniform particle size distribution, good high-rate electrochemical performance and excellent circulating stability, and besides, the discharging specific capacity is up to 100 mAh/g at 10 C,. The synthesis reaction process does not need a high-pressure container and only needs short high-temperature calcining time, so the reducing solvent is easy to recover, energy consumption is greatly reduced; the industrial popularization is facilitated.

The invention belongs to the technical field of industrial waste gas control, and relates to a grate-kiln SNCR/SCR (selective non-catalytic reduction/selective catalytic reduction) denitration and active coke desulfurization combined system. A denitration reductant injector of an SNCR system is communicated with one side, close to a rotary kiln, of a preheating section II; the preheating section II is communicated with an SCR system, and the SCR system is communicated with a drying section II; the drying section II and a preheating section I are communicated with an active coke desulfurizationand adsorption tower. The invention also provides a grate-kiln SNCR/SCR denitration and active coke desulfurization combined process. Flue gases of the rotary kiln enter the preheating section II, and the SNCR system sprays ammonia water into the flue gas inlet side of the preheating section II for denitration; the flue gases enter the SCR system for denitration, and then enter the drying sectionII to be mixed with the flue gases of the drying section I; the mixed gases enter the active coke desulfurization and adsorption tower for desulfurization after passing through an electric dust remover, a main exhaust fan and a flue gas heat exchanger. The grate-kiln SNCR/SCR denitration and active coke desulfurization combined system and the grate-kiln SNCR/SCR denitration and active coke desulfurization combined process have the advantages of improved denitration efficiency, reduced cost, high desulfurization and dust removal efficiency, and capability of meeting ultra-clean requirements.

The invention relates to a microorganism detoxification, and solidification and hazard-free treatment method for metal substrate sludge. The method comprises the following steps of: lowering the pH value of the substrate sludge to be 2.5 to 3.0 under the action that sulfuric acid is generated by microbial oxidation of acidithiobacillus spp.; dissolving toxic metal from a solid phase of the substrate sludge into a liquid phase; and performing solid-liquid separation to obtain acid toxic metal waste solution and solid-phase acid substrate sludge which hardly contains toxic metal, and in the liquid-phase part, reacting microbial reduction product H2S of acid-resisting sulfate reducing bacteria with toxic metal ions to obtain metal sulfide deposit to realize standard emission; and performing solidification treatment on the solid-phase part by using caustic sludge as a modifier and using cement as a curing agent to finally finish full detoxification and hazard-free treatment of the toxic metal substrate sludge, wherein the treated substrate sludge meets the requirements of engineering filling and landfill. The method of the invention has the advantages of full detoxification, no secondary pollution, a few process devices, low energy consumption and suitability for industrial operation.

The invention discloses a composite stamping die for a supporting seat. A mounting plate is arranged between an upper die base and a lower die base and fixed to the upper die base, and a female die is arranged between the mounting plate and the lower die base and fixed to the lower die base; a side plate is arranged on the female die, and a locating pin is arranged in the side plate and connected with the side plate and the female die at the same time; a fixed wedge plate is arranged between the mounting plate and the lower die base, a movable wedge plate makes contact with the lower die base, and cavities communicated with each other are formed in the fixed wedge plate and the movable wedge plate respectively; a forming male die is arranged in the lower die base and the fixed wedge plate, and second springs are arranged between the forming male die and the movable wedge plate; a material pressing plate is arranged in one cavity, pull rods are arranged in the material pressing plate and arranged on the upper die base, and each pull rod is sleeved with a first spring; a die shank is arranged in the upper die base, and a punching male die is fixed to the die shank and arranged in the forming male die. One set of die is adopted for the stamping die to complete blanking, forming and punching of the supporting seat, and production efficiency is high.

The invention discloses a method for preparing a tea saponin/copper compound antibacterial agent, and the preparing steps include:adding natural product tea saponin and copper ions by mass ratio of (0.1-2) : 1 with stirring, keeping stirring for 2 hours to 6 hours, drying by a spray drier and then obtaining the tea saponin/ copper compound antibacterial agent. The purity of the tea saponin is above 70%. The copper ions are a mixture prepared from one or more than two of solid copper sulfate, cupric nitrate and copper chloride in an arbitrary proportion. The compound antibacterial agent has an excellent broad-spectrum antibacterial property and obvious inhibiting effect for various pathogenic bacteria such as Escherichia coil, staphylococcus aureus and the like. Compared with the bacteriostatic activity of using tea saponin or a metal new antibacterial agent alone, the bacteriostatic activity of the compound antibacterial agent is remarkably enhanced, and the compound antibacterial agent is widely used in the fields of daily chemicals, textile and food and the like, and has a good harmony and a high security with the environment. According to the method for preparing the tea saponin/copper compound antibacterial agent, the antibacterial agent has the advantages of simple technology, low cost, easiness in industrialization and stable quality and the like.

The invention relates the complexing method of boron trifluoride dimethyl carbonate complex compound. The method comprises the following steps: transferring the liquid dimethyl carbonate to gas or spray pattern, adding the dimethyl carbonate and boron trifluoride in the rate of 1: 0.5-1: 1.5 to complex reactor, controlling the temperature below 90Deg.C, carrying out complex reaction, and getting the product. The invention simplifies the preparing method. The invention has the advantages of easy operation and good quality.

The invention discloses an integrated life sewage nitrogen and phosphorus removal apparatus, which can be widely used for nitrogen and phosphorus removal treatment of the life sewage, and comprises a cylindrical pool body and a mud-water separation device. A water inlet and a water outlet are provided on the sidewall of the pool body. A through-hole aerated tube is arranged on the bottom of the pool body. The mud-water separation device is fixed in the pool body by a metal support, and is divided into to two grades, and a physical phosphorus removal area and an electrochemistry nitrogen removal area are arranged in a two grades mud-water seperator. A cover plate is provided with the pool body, an air exhaust opening is provided on the cover plate, and an electrical cabinet is provided, an air pump, a time switch and a current stabilization transformer are arranged in the electrical cabinet, and the electrical cabinet is connected to a solar energy power device. By aiming the characteristics of life sewage, the apparatus has the advantages of compact structure and simple management, the integrated design is capable of substantially reducing the land occupation, no sludge backflow system is provided, the cost of investment and operation is low, thereby the integrated life sewage nitrogen and phosphorus removal apparatus is a bioelectrochemical sewage treatment device with the characteristics of no power consumption and economical and practical effects.

The invention provides a specific microorganism activating filler for treating black and odorous water bodies and belongs to the technical field of water treatment. The filler is prepared from the following raw materials in parts by weight: 3-5 parts of a microorganism inducer, 40-80 parts of an attachment carrier, 0-10 parts of an organic macromolecule polymer, 0-4 parts of an inorganic flocculate and 1-30 parts of an oxidization decoloring agent, wherein the microorganism inducer comprises nitrobacteria and/or denitrifying bacteria and a culture medium matter for the growth of the nitrobacteria and/or the denitrifying bacteria. The filler provided by the invention has the advantages that traditional water body purification is broken through; indigenous microorganisms of the water bodies are activated mainly and the water bodies per se serve as cultivating and breeding bases, so that the growth space of the microorganisms is greatly released, the effective biomass and the functionality of the microorganisms are increased, the microbial ecosystem of the water bodies is recombined, improved and optimized and the self-purification capacity of the water bodies is realized eventually.

The invention discloses a composite stamping die which comprises an upper die base, a lower die base, a die handle and a convex punching die. The die handle is arranged in the middle of the upper die base, the convex punching die is arranged in the middle of the lower die base, the die handle is fixedly connected with the convex punching die, an installing plate is arranged under the upper die base, a pull rod is arranged in the installing plate, springs are arranged at two ends of the pull rod, a convex forming die, a spring and a movable tapered wedge are sequentially arranged on the outer side of the convex punching die, the convex forming die is connected with the movable tapered wedge through the spring, the movable tapered wedge is provided with a fixed tapered wedge and is matched with the fixed tapered wedge, a guide column and a guide sleeve are arranged at two ends of the lower die base, and the lower die base is connected with the upper die base through the guide column and the guide sleeve. The composite stamping die can achieve continuous implementation of blanking, forming and punching, production efficiency is high, and production cost is reduced.

The invention discloses a main pipe construction method for establishing the tunnel formation, comprising following steps: pushing down a leading pipe and an initial main pipe underground; preventing landslide; conveying the next main pipe whose outer diameter is far smaller than the initial pipe to the inside of the main pipe setting space; expanding the diameter of the next main pipe to make it the same as the diameter of the initial main pipe; connecting the next main pipe after expansion treatment with the front end of the initial main pipe; repeating the connection operation of the next main pipe for establishing the tunnel formation. The technique scheme is able to construct in a direct or curve way, swift, safe and simple.

The invention relates to a method for preparing paper making antibacterial agents by using oil-tea camellia shells as carriers. The method is characterized in that 10 weight parts of oil-tea camellia shells particles are added into 25 to 30 weight parts of glutaraldehyde water solution, 350 to 400 weight parts of concentrated hydrochloric acid is added in a stirring way, and the reaction lasts 4 hours at 60 to 75 DEG C; 0.5 to 5 weight parts of sliver, zinc or copper metal compound solid is added, and the materials are continuously stirred for 4 to 12 hours after the dissolution; filtering, washing slag filtering are carried out until the materials to neutral, 5 weight parts of alkali liquor or reducing agents are added into the filter slag, and the materials are stirred at 40 to 80 DEG C for reaction for 0.5 to 3 hours; after the filtering is filtered slag and washed to the neutral state, and the filter slag is dried at 40 to 80 DEG C to obtain oil-tea camellia shell base paper making antibacterial agents. The antibacterial agents have the advantages that the oil-tea camellia shells are used as preparation raw materials, the resources are wide, the price is low, and the waste discharge is reduced; the preparation process is simple, the cost is lower, and high remaining rate is realized in pulp; and the preparation conditions are mild and can be easily controlled, the process equipment is less, and the operation is easy.