165 results about "Solid suspension" patented technology

Described herein are formulations of active pharmaceutical ingredients, where the active pharmaceutical ingredients or drugs are included in a solid suspension with one or more solid additives. The formulations described herein are useful for formulating any drug or active pharmaceutical ingredient, including those that have limited solubility in organic and/or aqueous solvent systems.

Supercritical conversion of hydrocarbons boiling above 538° C. (1000° F.) with a solvating hydrocarbon at a weight ratio of solvating hydrocarbon to high-boiling hydrocarbons of at least 2:1 and at conditions above the critical temperature and pressure of the high-boiling hydrocarbons-solvent mixture, in the presence of hot fluidized solids. The hydrocarbons are supplied to a reaction zone at a temperature below that of the hot solids supplied thereto, whereby the resulting hydrocarbons-solids suspension has a thermal equilibrium temperature corresponding to the reaction temperature. The conversion has high rates of sulfur, nitrogen and metals removal, nearly complete conversion to lower molecular weight products, high naphtha and distillate selectivity, and low coke formation. The supercritical conversion can replace crude distillation, vacuum distillation, solvent deasphalting, coking, hydrocracking, hydrotreating, and/or fluid catalytic cracking, and/or used in parallel with such unit operations for debottle-necking or increasing capacity.

A hot gas cyclone separator is provided with a segmented dip tube whose smooth sheet metal dip-tube segments have tops which are securely fastened to a cap of the separator in hook like manner by U-shaped angle rails. The adjacent lower ends of the dip-tube segments may also be interconnected by angle rails having U-shaped profiles which serve to protect the lower end of the dip tube from excessive wear caused by the impinging hot gas/solids suspension.

The invention discloses a method for recovery and comprehensive resource treatment of phenol and ammonia in semi-coke waste water. The method comprises the following steps: performing standing on the semi-coke waste water to realize gravity oil removing and separating recovery, filtering an effluent through a coke filter to remove a solid suspension, and introducing the effluent in an extraction pre-oil removal reactor for deeply removing oil residue, coke powder and tar pollutants in the waste water; performing stripping depickling on the waste water after extraction and pre-oil removal, performing ammonia distilling and performing extraction processing to remove and recover the acidic gas, ammonia and phenol in the waste water, and introducing the processed waste water which reaches the standard in a biochemical treatment system; performing extraction processing to obtain a phenol-rich organic phase, and converting phenols in an extract phase to sodium phenolate through alkali washing processing to realize separation of an extractant and the phenols; and introducing a sodium phenolate solution to an acidifying workshop section for acidifying to prepare crude phenol and sodium salt. The method can realize separation and enrichment of phenols, heavy oil, light oil, ammonia and acidic gas in the semi-coke waste water, realizes resource recovery, at the same time, realizes regeneration and cycle utilization of the extractant and alkali lye, and has good application prospect.

The invention discloses a silicone substrate high-linearity low-phase-shift ultra-broad-band digital attenuator which comprises a 1dB attenuating module, a 2dB attenuating module, a 4dB attenuating module, a 8dB attenuating module and a 16dB attenuating module. Two NMOS field effect transistors which are of a channel parallel-connection resistor structure and of a solid suspension structure and manufactured through SiGe BiCMOS technology are adopted to be used as control switches, five sets of complementary digital signals are used for controlling the five attenuating modules independently to work, a low-pass network is used for conducting phase compensation, inductance is used for matching between the adjacent attenuating modules, matching between the input end of the1dB attenuating module and 50 omega input impedance and matching between the output end of the 16dB attenuating module and 50 omega output impedance are realized through transmission wires, the working frequency range is 1-25GHz, and low-differential-loss low-phase-shift attenuation of signal amplitudes under 32 states can be realized with the 1dB length stepping in the attenuating range of 0-31dB. The silicone substrate high-linearity low-phase-shift ultra-broad-band digital attenuator has the advantages of being low in differential loss, low in accessory phase shift, high in linearity, low in production cost and low in chip area, and can be used for large-amplitude signal processing and single chip integration.

A method for analyzing a dispersion such as an oil/solid suspension or an oil/water emulsion. A set of original domain data is collected relating to an attribute of the dispersion, such as light transmittance therethrough. The set of original domain data is then transformed into a transformed set of original domain data which is in the frequency domain. Any transformation technique, such as a fast Fourier transform, may be used to transform the original domain data from a first domain, such as a time or spatial domain, into the frequency domain. The dispersion is then characterized using the transformed set of original domain data. One or more frequency domain spectra may be generated from the transformed set of original domain data, which frequency domain spectra express a parameter relating to the attribute of the dispersion as a function of frequency, in which case the characterizing step may be performed using the frequency domain spectra.

The present invention relates to methods for the separation of materials from heterogeneous fluids and provides a means of effecting stimulant-sensitive flocculation and consolidation of solid suspensions within a liquid medium. Specifically, the present invention provides a method of controlling the state of a suspension of solid particles in a liquid, including applying to the suspension a stimulus adapted to control inter-particle forces between the solid particles. The stimulus is reversibly operable to control attraction and/or repulsion. Means of consolidating a sediment bed and of separating the resultant liquids-rich and solids-rich phases are also within the ambit of the invention.

A multifunctional cyclone solid-liquid separator is composed of a casing consisting of spiral barrel and conic barrel, a tangential water inlet tube, a tangential water outlet tube, a bottom flow port, an overflow tube, and a cylindrical baffler consisting of arrangement of multiple guide plates with radical acute angles. Its advantages are multiple functions including guiding flow, isolating separation and cyclone separation, high removing effect to small particles, and low energy consumption.

The present invention relates to a pharmaceutical composition comprising a solid suspension prepared by hot melt extrusion of isobutyric acid (2R,3S,4R,5R)-5-(4-amino-2-oxo-2H-pyrimidin-1-yl)-2-azido-3,4-bis-iso-butyryloxy-tetrahydro-furan-2-ylmethyl ester; hydrochloride salt (I) and a polyethylene glycol (PEG)/polypropylene glycol (PPG) block copolymer.

The invention discloses a baffling composite hydrolytic acidifying reactor to request to protect peripherial water, which comprises the following parts: pond, fill, inlet pipe and outlet pipe, wherein the pond is composed of three-grade concentric circle with inlet pipe connecting outer-race distribution groove; the distribution groove is set along circumference with water hole on the groove bottom evenly to supply water; the water passes the distribution hole on the commutating board bottom, which is baffled into outer-race, inner-race and middle reacting regions; the reacting region bottom is floating sludge bed with middle region as half flexible fill region, which intercepts most of solid suspension and colloidal matter in the effluent; the solid organics is decomposed into soluble organics and decomposed further; the vent pipe is laid on the outlet groove bottom of middle reacting region, which contains outlet water.

The invention relates to a production method for granular ferric trichloride hexahydrate. The production method for the granular ferric trichloride hexahydrat includes the steps that solid ferrous chloride is directly added into a hydrochloric acid solution, a ferric trichloride solution is obtained through an oxidation reaction, and is evaporated and concentrated, cooling crystallization is carried out, and solid suspension liquid with the solid-liquid volume ratio of (0.8-1.2):(0.98-1.1) is obtained; then the solid suspension liquid is subjected to solid-liquid separation, the obtained solid is subjected to crushing granulation, and the high-purity granular ferric trichloride hexahydrate which is not prone to deliquescence is obtained. In addition, according to the production method for the granular ferric trichloride hexahydrate, a traditional chloro-alkali industry production line and cold storage facilities do not need to be matched, artificial putting molding and artificial demolding are not required, and the production method is simple.

The invention relates to a treatment method for improving removal rate of benzo (a) pyrene in coking wastewater. The method is characterized by comprising the following steps of: (1) conveying the coking wastewater into an oil separation tank, and removing suspension oil in water; (2) conveying the wastewater from the oil separation tank into an air floatation reactor, adding a coagulant, a coagulant aid and a demulsifier into the air floatation separation reactor; (3) conveying the effluent of the air floatation separation reactor into an A2/O biological treatment process; (4) conveying the effluent of the biological treatment process into a coagulation sedimentation basin, adding the coagulant and the coagulant aid into the coagulation sedimentation basin; (5) conveying the effluent of the coagulation sedimentation basin into an active carbon filtering basin. The method has the advantages that the air floatation and turbidity removal procedures are strengthened based on the distribution characteristics of the benzo (a) pyrene which mostly forms solid suspension or is dissolved in oil, removal of benzo (a) pyrene in coking wastewater is efficient, and the increasingly stringent wastewater treatment and discharge requirements are met.

The invention belongs to a separation technique of fermentation and pervaporation coupling to produce alcohol, which is characterized in that the separating technique comprises separating solid suspension mater and liquid part in a fermentation tank, transporting liquid part to a pervaporation steaming film separator through a pump, and lowering clogging at the bottom of the fermentation tank through the circulation of permeation residual liquid. The improved fermentation technique is more suitable for the connection of pervaporation technique, which increases the matching degree between fermentation and pervaporation coupling, and leads the integral production technique in downstream pervaporation technique to be more stable. The separation technique not only lowers the possibility of infecting bacteria through a new process flow, but also lowers film pollution in the process of downstream pervaporation separation, which lays an industrial foundation for the process of improving fermentation productivity and continuously fermenting. The distinctive characteristics of the method are that the method has low production cost and convenient employment, which has industrialized prospect.

The invention discloses a Chinese patent medicine production wastewater treatment technology, and belongs to the technical field of wastewater treatment. The technology comprises the steps of (1) pretreatment, (2) coagulation precipitation treatment, (3) anaerobic treatment, (4) aerobic treatment, (5) filtering treatment, and (6) sludge treatment. Chinese patent medicine wastewater undergoes pretreatment, coagulation precipitation, anaerobic treatment, aerobic treatment and the like, so the chemical oxygen demand (COD), the biochemical oxygen demand (BOD), the concentration of solid suspension (SS) and the content of ammonia nitrogen (NH3-N) in the wastewater are greatly reduced, and the influences on the environment are reduced.

The invention relates to a process for advanced treatment of waste alkali in hydrogen sulfide removal, belonging to the field of environmental protection in chemical industry. The process provided by the invention improves the effect of the oxidation reaction, improves the air lifting effect of the heavy hydrocarbons in the alkali and removes the stoppage phenomenon of the sieve shaped oxidation reactor. The process uses the deep liquid level reactor composed of a sieve plate and a down comer to oxidize the waste alkali of hydrogen sulfide removals, improves the gas-liquid mass transfer and reaction driving force through the reversed contacting of the gas-liquid, and obviously improves the oxidation effect of the alkali and the air lifting effect of the volatile organic materials; for waste alkali in hydrogen sulfide removal that the COD is 30,000 to 50,000 ppm, the deprivation rate is more than 98%. The specially designed down comer removes the collection of the solid suspension at the tray and overcomes the congestion phenomenon during the process. The process is suitable for advanced innocent treatment of waste alkali of pyrolysis gas in refinery, catalytic hydrogenation desulfurization tail gas and various sulfureted hydrogen containing tail gases after NaOH or Na2CO3 solution absorbes.

A combined process for treatment of PTA (pure terephthalic acid) refined waste water comprises the following steps: firstly, aromatic acid in the PAT refined waste water is extracted in an extraction column by using para-xylene into an extract phase, and the extract phase is conveyed to an oxidation unit to serve as a reaction raw material; a raffinate phase is conveyed to a micro-filtration membrane separation device, so that solid suspension particles in the raffinate phase are removed; and a penetrating fluid enters a resin adsorption device and an ion exchange device, so that residual aromatic acid and metal ions in the penetrating fluid are removed, and treated water meets the water standard of a PAT refining unit. According to the method, the water and the aromatic acid therein are recycled, so as to reduce the unit consumption of products and water consumption, and bring remarkable economic benefits.

The invention relates to a method for preparing spherical Bayer stones. The method comprises steps that: (1) an aqueous solution of sodium bicarbonate and a sodium aluminate solution are respectively added into a continuous crystallization reactor; a reaction is carried out under a temperature of 40-60 DEG C, and an average residence time is 45-90min; when the reaction reaches a steady state, a Bayer stone solid suspension solution is obtained, wherein the adding speed of the aqueous solution of sodium bicarbonate is 4.26-8.7mL/min; the adding speed of the sodium aluminate solution is 1.1-2.9mL/min; and the molar ratio of sodium bicarbonate to sodium oxide in aluminate is 0.90:1-2.59:1; (2) the suspension solution obtained in the step (1) is subject to solid-liquid separation; a solid phase and a liquid phase are collected; the solid phase is washed and dried, such that a Bayer stone product is obtained; (3) carbon dioxide gas is delivered to the liquid phase obtained in the step (2),such that a sodium bicarbonate solution is obtained; the produced sodium bicarbonate solution is used in the step (1), and the steps (1)-(3) are repeated. The method provided by the invention is advantaged in that: with the method, the prepared Bayer stones have regular spherical shapes and uniform particle distribution.