248results about How to "New technology" patented technology

There is provided a process for recovery of lignin from a black liquor that contains either soluble or dispersed lignin, generating a “liquid lignin” at high yield. Soluble lignin at elevated pH is precipitated by reducing the pH of the black liquor stream by countercurrent reaction with carbon dioxide, at elevated temperature and pressure, creating two bulk fluid phases: a heavy lignin-rich phase and a light lignin-depleted phase. The heavy lignin-rich phase is separated and washed countercurrently with a strong acid to displace metal cations from the lignin, creating a low-salt lignin, which is then formed into a low-dust high-bulk-density lignin fuel pellet. If needed, especially for lignin recovered from kraft papermaking black-liquor streams, an oxidation step is included to eliminate negative odor for high-value green-chemistry applications.

The invention relates to a process for dimerizing lower, olefinic hydrocarbons. In particular, the present invention concerns a process for dimerizing C₃–, C₄ and C₅-olefins with a medium pore zeolite under process conditions allowing selective dimerization According to the invention, fresh olefinic hydrocarbon feedstock is fed to a reaction system including at least one reaction zone and at least one separation zone. The olefinic hydrocarbon feedstock is contacted with an acid catalyst at conditions in which at least a part of the olefins dimerizes. The effluent from the reaction zone is conducted to the separation zone where dimerized reaction product is separated from said effluent.

A process for oligomerizing olefinic, lower hydrocarbons. The process comprises the steps of feeding a fresh olefinic hydrocarbon feedstock to a reaction zone; contacting the olefinic hydrocarbons of the feedstock with an acidic catalyst in the reaction zone in order to dimerize at least a part of the olefinic hydrocarbons, withdrawing an effluent containing oligomerized olefins from the reaction zone; and conducting the effluent to a separation zone, wherein the oligomerization reaction product is separated from said effluent. According to the invention, the reaction is carried out in homogeneous phase comprising a solvent for olefinic hydrocarbons, maintained at supercritical conditions. By using supercritical carbon dioxide as a solvent deactivation rate of catalyst can be diminished. Carbon dioxide is easy to remove from the product mixture and spent reaction medium can be used for regeneration of the catalyst.

Carrier particles for dry powder formulations for inhalation having reduced electrostatic charges are prepared.

The present invention relates to a process for treating a wastewater comprising an ammonium ion species and a phosphorus ion species. The process comprises the steps of: (i) treating the effluent in a first stage of the process to convert the phosphorus to a phosphorus-containing salt; (ii) treating the wastewater in a second stage of the process to convert the ammonium ion species to gaseous ammonia; (iii) removing the struvite and/or other phosphorous containing salts from the effluent; and (iv) removing the gaseous ammonia from the wastewater.

Process for producing gasoline components. The process comprises feeding a fresh olefinic hydrocarbon feedstock to a reaction zone, in which its structure is first isomerized. The isomerized hydrocarbon is drawn out of the first reaction zone and conducted to a second reaction zone, where the isomerized hydrocarbon is dimerized. The dimerized reaction product is drawn out of the second reaction zone and separated from the flow in a separation zone. Because there are more isoolefins present in the dimerization unit feed, more isoolefin dimers useful as fuel components can be produced.

A system for linking standard telephony communications with internet protocols. Standard telephony equipment, such as a telephone, can communicate using the internet without special adapters or the like. A network of Internet servers may be connected to the Internet and telephony communications system, enabling telephony communications equipment access to the Internet.

A method and system for enhancing the relevance and usefulness of information searches, such as web searches, by introducing individual and shared user's judgment; first, to define the universe of the search, automatically internalizing the content of that universe (via a copyright-compliant system) in an automatically updated repository that can integrate other (internally generated or imported) content and enable sharing according to user preferences; and, secondly, to organize the internalized content through tagging, book marking and filtering.

The invention relates to a superposition state vortex light-based object rotation direction detecting device. The main components of the device include a He-Ne laser, a polarizer, a beam splitting prism, a spatial light modulator, a 4f filtering system, a plane mirror, a photoelectric detector and a micro oscilloscope. Laser generated by the laser is transmitted through the polarizer and then irradiates the spatial light modulator; the spatial light modulator is loaded with a superposition state beam hologram of which topological charges have opposite signs and have unequal values, so as to generate superposition state vortex light; the 4f filtering system screens out first-order diffracted light, and the first-order diffracted light irradiates a rotating object, and the photoelectric detector receives scattered light and performs spectrum analysis so as to obtain a frequency shift value; a rotation speed is added to the hologram, and then, signal acquisition is performed; and two frequency shift values obtained at two different times can be compared with each other, so that the rotation speed and rotation direction information of the object can be obtained. The device is simple instructure and can fully obtain various kinds of information related to the rotation of the object.

A process utilizing PET as a reactive constituent to manufacture other polymers containing the pre-condensed moieties by the rapid transesterification of the condensation polymer with a pre-made modifying polymer containing the desired mix of other monomers. The process involves as a first step the manufacture of a modifying polymer containing the desired mix of acids and alcohols to a specific molecular weight such molecular weight dependent on the desired final level of utilized condensation polymer and the finished molecular weight. The second step of the process involves the rapid buildup of molecular weight and/or polymer uniformity by the rapid transesterification of the condensation polymer with the modifying polymer. The second step can be performed in any suitable vessel including an extrusion line. The process has the advantage of greatly reduced cycle times over other condensation polymer utilization processes such as the recycling of PET into other materials.

The invention provides a hyperspectrum-based method for creating a growth curve of rot funguses in a fruit, and belongs to nondestructive technology of food quality safety quick detection and monitoring. Hyperspectral images of the funguses at different growth stages can be acquired respectively through a hyperspectral imager, so as to analyze difference between images of different types of funguses at different stages and a spectrum, extracting corresponding images and corresponding spectrum characteristic parameters, and respectively creating the growth models of three types of funguses. Compared with the fungus growth conditions obtained through the conventional microbe growth detection manner, the related coefficient ranges from 0.88 to 0.96. The method provides a new concept and a new technology for growth detection of microbes in the foods, can be used for creating a fungus growth curve more conveniently and faster, and can be used for detecting, monitoring and controlling fruit rot fungus diseases.

The invention provides a punch forming method of a thin-wall end socket. The method comprises the following steps of 1, cutting a non-ferrous metal plate to obtain an end socket plate, and cutting a steel plate to obtain an upper steel plate and a lower steel plate; 2, putting the end socket plate between the upper steel plate and the lower steel plate, and welding the upper steel plate and the lower steel plate into a whole plate along a circular arc; 3, heating the whole plate; 4, carrying out punch forming on the heated whole plate to obtain an entire end socket; and 5, removing the upper steel plate and the lower plate to obtain the thin-wall end socket of which the wall thickness is 0.5-3.0mm. The punch forming method is novel in technique, reliable and practical, and advanced in process. Two steel plates are adopted to clamp the end socket plate in the middle; the thin-wall end socket is punched and formed by a common die; the problems of large size, thin wall and large molding difficulty of lined end socket of chemical equipment can be effectively solved; the quality and the yield of the thin-wall end socket are improved; and the production cost is greatly reduced, and the economic benefit is obviously improved.

This invention relates to an preparation method of gastrodia tuber wine. It mainly solves existing straggling method of making gastrodia tuber wine by high temperature, steaming, boiling, shelling, dunking alum, sulfur fuming and baking drying. The pollution of alum and sulfur to gastrodia tuber wine is conquered, and the effective components running down and destruction by the existing method is also conquered. In this invention, gastrodia tuber is washed and surface moisture is thrown off, crush and jordaning technique is used. gastrodia tuber block tissue diameter is shorten, so its effective components dissolution, dunking by liquor is accelerated, the gastrodia tuber effective components in liquor is boosted, and the problem fresh gastrodia tuber block uneasy dunked by liquor, gastrodia tuber component in liquor is low, clock stem easy deterioration and pollute liquor is solved. gastrodia tuber paste dreg and gastrodia tuber starch fermented with food stuff is used in this method. Raw material is saved, cost is reduced, health component of gastrodia tuber wine is improved, and the technique is advance and novelty. It provides a new style gastrodia tuber health wine for people, so this invention has good economic extending value.

The invention discloses a super large cross section (phi 800 to phi1,000mm of diameter) round billet continuous caster, which is characterized in that the continuous caster consists of a crystallizer provided with a foot roll, a crystallizer vibration device, an ingot supporting and guiding device, an ejection device, a protection and insulation section, and a crystallizer electromagnetic stirring device, wherein a copper pipe of the crystallizer with the foot roll is contacted with molten steel, the outer layer of the crystallizer with the foot roll is a stainless steel water jacket, the furthest layer of the crystallizer with the foot roll is a carbon steel shell, the stainless steel water jacket and the carbon steel shell are connected by an upper flange and a lower flange, and a crystallizer water tank adopts the one-inlet two-outlet one-cold circulation mode; and the crystallizer vibration device does not adopt the sine electric drive mode. The continuous caster has the advantages of novel structure, compact and reasonable arrangement, better quality and lower cost of billet, and so on.

The invention discloses a method for raising hydrogen production efficiency of microalgae and belongs to the field of a biological energy source. The method comprises the following steps: hydrogen-production microalgae cells are cultured in a medium until the exponential growth phase; the microalgae cells are collected, and the microalgae cells are transferred to a microalgae hydrogen-production medium containing organic matters, deoxygenization and sealing are carried out, and the microalgae cells are continuously cultured in a dark environment for a certain time, wherein the organic matters contain at least one of glucose, fructose, acetate, pyruvic acid, 3-phosphoglycerate, malic acid and amino acid and at least one of sodium salts and sylvite of the above organic matters; and finally, the microalgae cells are again placed in a light environment to induce water decomposition to produce hydrogen. It is verified through experiments that hydrogen production efficiency of microalgae can be remarkably raised by adding the organic matters to the microalgae hydrogen-production medium. The method has characteristics of novel technology and remarkable effect and the like, is simple and reliable, and has important practical application value in the field of new energy.

The invention discloses a process for repairing the breakage of a rotary kiln tyre/roller, comprising the following steps of: performing fixed connection at the two sides of a crack, cutting out a U-shaped crevasse, grinding, sequentially depositing a binding layer, a transition layer, a work layer and a processing layer at the crevasse, dismounting a fixing plate, and carrying out overall grinding and polishing. The process for repairing the breakage of the rotary kiln tyre/roller provided by the invention is low in repairing price, which is only 100,000-1500,000 Yuan, low in investment, simple in process, convenient to operate, easy to learn and grasp, novel in technology, low in cost, and practical and reliable; therefore, the process not only increases income and reduces expenditure for the country but also makes an enormous contribution to consumption reduction and energy conservation as well as resource conversation and efficiency improvement for an enterprise.

The invention relates to a soil heavy metal passivator and a preparation method thereof and belongs to the technical field of soil improvement. The soil heavy metal passivator comprises humin and sulfhydrylation humin; the preparation method of the soil heavy metal passivator comprises that humin is extracted from peat soil and subjected to sulfhydrylation for obtaining the sulfhydrylation humin, and the preparation method of the soil heavy metal passivator comprises three concrete steps of pre-treating the peat soil, extracting humin and carrying out sulfhydrylation on the humin, namely carrying out air drying on the peat soil, sieving, weighing defined amount of the peat soil and mixing with sodium hydroxide solution, placing mixture on a shaking table and vibrating, standing, centrifuging and separating, washing, and carrying out air drying, so that crude humin (HM) is obtained; adding a mixed solution of mercaptoacetic acid, acetic anhydride and acetic acid, a concentrated sulphuric acid solution and the crude humin in proportion, stirring, cooling, carrying out reaction in a water bath, washing, and carrying out air drying, so that the sulfhydrylated humin is obtained. The preparation method of the soil heavy metal passivator is simple, a technology is novel; the prepared soil heavy metal passivator can increase passivation rate of Cd in polluted soil and also can be intensively combined with soil particles, migration of the passivator is reduced, and the soil heavy metal passivator is energy-saving and environmentally friendly and is applicable to large-scale popularization.

The invention discloses a method for quickly collecting suspended matter and floating matter in water and a device thereof, which is characterized in that the collection process comprises the following steps: a water surface transportation tool with a certain bearing capability and self-propulsion capability cruises to or is fixed in a water area to be cleared, and then a roller driving device is started to drive a pair of roller brushes to rotate inwards to the opposite of each other; the roller brushes tightly contact with a scraping plate arranged on the collection cabin wall and closes the front opening of a collection cabin; the suspended matter or floating matter absorbed on the outer side of a roller are led into the collection cabin as the roller, and scrapped by the scrapping plate; when the collected matte is accumulated to a certain degree, a coarse strainer arranged at the bottom of the collection cabin appropriately initially filters the collected matter and then sends the collected matter into a solid-liquid separator; the separated dry matter is conveyed to a storage cabin. The invention is characterized by simple and reliable structure, low cost and high practicality, and can be applied in the clearing of all suspended matter and floating matter in water.

The invention belongs to the field of synthesis of titanium dioxide photocatalytic materials, and particularly relates to an oxygen-deficient titanium dioxide catalyst as well as a preparation methodand application thereof. The preparation method of the oxygen-deficient titanium dioxide catalyst comprises the following steps: a, uniformly dispersing titanium dioxide in a plasma reactor, and introducing a working gas to carry out emptying treatment on the reactor; b, keeping the continuous introduction of the working gas, and treating for 20-50 min under the conditions that the voltage of theplasma reactor is 80-140 V and the current is 1.35-1.93 A to obtain the oxygen-deficient nano titanium dioxide catalyst, wherein the working gas is composed of H2 and N2. The preparation method is simple, and the prepared catalyst has good catalytic degradation activity on organic matters.

There is provided a process for recovery of lignin from black liquor that contains either soluble or dispersed lignin, generating a “liquid-lignin” at high yield. Lignin at elevated pH is precipitated by reducing the pH of the black liquor stream with carbon dioxide, at elevated temperature and pressure, creating two bulk fluid phases: a dense liquid-lignin phase and a light lignin-depleted phase. The dense liquid-lignin phase is separated and washed with a strong acid to displace metal cations from the lignin, creating a low-salt, randomly shaped lignin. If needed, especially for lignin recovered from kraft papermaking black-liquor streams, an oxidation step is included to eliminate negative odor for high value green chemistry applications.