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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 14. Отображено 14.

22-10-2008 дата публикации

Thiazoline multithioether compounds with sterilization activity, synthetic method and applications

Номер: CN0101289431A

Автор: WANG WEI, WANG YONG, GAO YAN, ZHANG ZONGJIAN, ZHAO BING, ZHOU XIFEI, WEI WANG, YONG WANG, YAN GAO, ZONGJIAN ZHANG, BING ZHAO, XIFEI ZHOU

Принадлежит:

The invention relates to a multithread sulfoether thiazoline compound with fungicidal activity that can be used as a sterilization pesticide preparation, a synthetic method and the application thereof. The compound which is expressed as the multithread sulfoether thiazoline compound shown in the following general formula I is synthesized by adopting a 2-thiazolidine thione compound which is activated in an alkali polarity proton solvent to react with a polybrominated compound. The compound which has a high antibacterial activity on common agricultural pathogenic fungi can be used as a compound preparation of an effective sterilization quantity or prepared to be a pesticide combination by adding acceptable promoters, and the compound particularly can be prepared to be a pesticide water-dispersible tablet with good protective and therapeutic efficacy on controlling cucumber colletotrichum, pepper phytophthora blight, tomato botrytis cinerea, cucumber scab and rape sclerotinia rot.

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Номер записи: 1

13-05-2009 дата публикации

Potassium sulfate produced with low-concentration flue gas sulphur dioxide and ammonium chloride potassium fertilizer

Номер: CN0101428829A

Автор: ZENG ZIPING, LIU YINGLONG, ZHOU XIFEI, CHEN HONG, XIA RENJIANG, YANG BO, ZIPING ZENG, YINGLONG LIU, XIFEI ZHOU, HONG CHEN, RENJIANG XIA, BO YANG

Принадлежит:

The invention relates to a potassium sulfate and an ammonium chloride potash fertilizer produced by using low-concentration fume sulfur dioxide, and belongs to the technical field of chemical engineering and environmental protection. The raw material of the potassium sulfate adopts powdery or granular solid agricultural potassium chloride with 85 to 900 percent of purity, ammonium sulfate solution with the concentration of 400-500g/l produced by SO2 absorbed by adopting the ammonia process and fresh water; the consumption of the raw material is the mass ratio of KCl/(NH4)2SO4 equal to 1.05 to 1.1 of the potassium chloride and the ammonium sulfate; the total concentration is adjusted by the fresh water; the potassium sulfate comprises the following components: 45 to 50 percent of K2O and 1.0 to 2.0 percent of Cl<->; and the product quality conforms to GB20406-2006 agricultural potassium sulfate qualified standard (K2O is more than or equal to 45 percent and Cl<-> is less than or equal to ...

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Номер записи: 2

19-10-2005 дата публикации

High efficiency formaldehyde clearer for indoor air

Номер: CN0001683057A

Автор: ZHOU XIFEI, GAO YAN, XIFEI ZHOU, YAN GAO

Принадлежит:

The present invention belongs to the field of air purifier, and is especially a kind of high efficiency indoor formaldehyde clearer. The indoor formaldehyde clearer includes one container holding formaldehyde gas absorbing liquid, one Z-shaped air duct with homogeneously distributed air outlet holes in the lower part, and one air compressor connected to the upper part of the Z-shaped air duct and with turbid air inlet. The container has fresh air outlet and top cover in the upper part, and adsorbing layer to adsorb the reacted product of formaldehyde gas and the absorbing liquid in the top, and may have absorbing liquid exhaust valve. The indoor formaldehyde clearer can eliminate formaldehyde, dust and other pollutant completely, and may be used widely.

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Номер записи: 3

18-06-2014 дата публикации

Method for simultaneously desulfurizing, denitrating and purifying flue gas

Номер: CN103861439A

Автор: ZENG ZIPING, LIU CHENG, ZHOU XIFEI

Принадлежит:

The invention discloses a method for simultaneously desulfurizing, denitrating and purifying flue gas and belongs to the field of flue gas purification. The method comprises the following steps: spraying the flue gas at the temperature of 50-90 DEG C by using ammonia absorption liquid to obtain a solution, and aerating and oxidizing the solution to obtain an ammonium sulfate solution; exchanging heat between the obtained flue gas and the original flue gas, heating to 120-350 DEG C, and supplementing ammonium hydroxide; converting NO and NO2 in the flue gas into N2 by addition or non-addition of an activated carbon material of a catalyst; performing reaction on the remaining SO2, ammonia and water vapor to generate ammonium sulfate; adsorbing mercury, dioxin, furan, a volatile organic compound, ammonia sol and other trace toxic substances by activated carbon; and regenerating the activated carbon after absorption and adsorption by using washing and heating methods. The method has the advantages ...

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Номер записи: 4

13-05-2009 дата публикации

Method for reutilization of sulphuric acid tail gas sulphur dioxide of phosphor chemical industry

Номер: CN0101428768A

Автор: ZENG ZIPING, LIU YINGLONG, ZHOU XIFEI, YANG CHAO, ZIPING ZENG, YINGLONG LIU, XIFEI ZHOU, CHAO YANG

Принадлежит:

The invention relates to a method for recycling tail gas-sulfur dioxide in sulphuric acid in phosphoric chemical industry, and belongs to the technical field of the chemical engineering and the environmental protection. The invention utilizes a byproduct-ammonia water in an enterprise in the phosphoric chemical industry as a desulfurizer; a sulphuric acid removing device reaches the standard and discharge the tail gas SO2; on the basis of the original patented (ZL200410022641.3) technology of the corporation, the oxidation rate of absorbing liquid sub-salt (containing (NH4)2SO3, NH4HSO3)) is improved (not less more 98 percent is increased to not less more 99.5 percent); and ammonium sulfate solutions obtained by oxidation are directly used as production materials of compound fertilizers in the enterprise. The method comprises the steps of absorption, regeneration, oxidation and concentration. The invention has the advantages that SO2 is not generated, so that a sulfuric acid production ...

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Номер записи: 5

05-01-2011 дата публикации

Method for reutilization of sulphuric acid tail gas sulphur dioxide of phosphor chemical industry

Номер: CN0101428768B

Автор: LIU YINGLONG, ZENG ZIPING, YANG CHAO, ZHOU XIFEI, YINGLONG LIU, ZIPING ZENG, CHAO YANG, XIFEI ZHOU

Принадлежит:

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Номер записи: 6

06-05-2009 дата публикации

Ammonia-spillage amount control method in ammonia-process desulfurization

Номер: CN0101422697A

Автор: ZENG ZIPING, LIU YINGLONG, ZHOU XIFEI, YANG CHAO, ZIPING ZENG, YINGLONG LIU, XIFEI ZHOU, CHAO YANG

Принадлежит:

The invention relates to an ammonia escaping amount controlling method that is used in ammonia desulphurization, belongs to the technical field of chemical engineering and environmental protection, and comprises following steps: a high-efficiency flue gas desulfurizing defogger (2) is arranged at the upper part of a washing and absorbing tower, sulphureous flue gas passes through an absorbing section and is chemically absorbed by an absorbing liquor then forms fog drops that contain ammonia salt and free ammonia, the fog drops rise into the region of the defogger (2) along with the flue gas, and the defogger (2) catches the ammoniac fog drops; the upper and lower ends of the defogger (2) that is arranged at the upper part of the washing and absorbing tower are assorted with technical watery regions for program controlling washing devices (1) and (3) sequentially, and the ammonia fog caught by the defogger (2) is washed and recycled; and the water supplement of a desulfurizing system is ...

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Номер записи: 7

05-08-2015 дата публикации

Method for treating high-ammonia-nitrogen waste water to serve as ammonia desulfurization agents or process water

Номер: CN104817207A

Автор: ZENG ZIPING, LI WEI, ZHOU XIFEI

Принадлежит:

The invention belongs to the technical field of environmental engineering waste water treatment and relates to a method for treating high-ammonia-nitrogen waste water to serve as ammonia desulfurization agents or process water. The method includes the steps: a, hardness adjustment: taking high-ammonia-nitrogen waste water and adding alkali until the total hardness of the high-ammonia-nitrogen waste water is smaller than or equal to 450mg/L to obtain low-hardness waste water; b, addition of water purifying agents for treatment: adding the water purifying agents into the low-hardness waste water, and filtering after reaction is finished to obtain filtrate; c, desulfurization: taking the filtrate as the desulfurization agents to absorb sulfur dioxide so as to generate ammonium sulfate solution; taking the filtrate as process water for ammonia desulfurization. The method has the advantages that the problems of high cost and complexity in treatment process of the high-ammonia-nitrogen waste ...

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Номер записи: 8

02-11-2011 дата публикации

Integrated method for desulphurization and defluorination of electrolytic aluminium flue gas

Номер: CN0102228775A

Автор: ZIPING ZENG, YINGLONG LIU, XIFEI ZHOU, RENJIANG XIA, XIAOLI CHEN, ZENG ZIPING, LIU YINGLONG, ZHOU XIFEI, XIA RENJIANG, CHEN XIAOLI

Принадлежит:

The invention relates to an integrated method for desulphurization and defluorination of electrolytic aluminium flue gas, and belongs to the technical field of environmental protection. The invention is an improvement based on technologies of the company patents (ZL200410022641.3 and ZL200610048701.8). In an ammonia desulphurization process, a washing and absorbing tower absorbs SO2, and also absorbs and dissolves F-ions into an ammonium sulfate solution in a system to form ammonium fluoride; during separation of ammonium sulfate crystal grains, ammonium fluoride is still dissolved in the ammonium sulfate solution; a solution separated from ammonium sulfate crystals is treated with defluorination; and defluorination products of cryolite and alumina dust are filtered and recovered for cycle utilization. The invention has advantage that a problem of fluorinions in flue gas being absorbed and enriched in a wet desulphurization of electrolytic aluminium flue gas is solved, so as to realize ...

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Номер записи: 9

30-04-2014 дата публикации

Method for preparing potassium sulfate by absorbing and oxidizing sulfur dioxide flue gas

Номер: CN103754897A

Автор: ZENG ZIPING, LIU YINGLONG, XIA RENJIANG, ZHOU XIFEI

Принадлежит:

The invention relates to a method for preparing potassium sulfate by absorbing and oxidizing sulfur dioxide flue gas, which belongs to the technical field of chemical engineering and environmental protection. The method comprises the following steps: a, continuously feeding an ammonium sulfate solution and potassium chloride according to a weight ratio of (0.8-1.2):(0.8-1.2), subsequently stirring at the temperature of 28-35 DEG C to react for more than 10 minutes, adding potassium sulfate seed crystals, further continuously reacting for 10-30 minutes, and adjusting the concentration of K<+> in the reaction liquid to be 58-68g/L; and b, after the reaction is accomplished, filtering to respectively obtain a filter cake and filtrate, and washing the filter cake by using a KCl solution so as to obtain a finished potassium sulfate product. The method has the beneficial effects that the process is simple, the energy consumption and the production cost can be effectively lowered, and the economic ...

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Номер записи: 10

13-05-2009 дата публикации

Reaction crystalizer for producing potassium sulfate with ammonia process of desulfurization

Номер: CN0101428831A

Автор: ZENG ZIPING, LIU YINGLONG, ZHOU XIFEI, ZIPING ZENG, YINGLONG LIU, XIFEI ZHOU

Принадлежит:

The invention relates to a reaction crystallizer for producing potassium sulfate by using the ammonia process of desulphurization, and belongs to the filed of an environmental protection device and the chemical engineering technique. The reaction crystallizer comprises a device body (1), a mechanical screw batch charger or a star-shaped charger (2), a stirring device (3) and a potassium sulfate outlet (4). Firstly, the device body (2) selects a SO4<2->, CI<-> and slat corrosion resistant carbon steel enamel, and the carbon steel welding surface inside the device body (1) is required to be enameled after being burnished and polished; secondly, the shaft of the stirring device (3) and the stirring vane select SO4<2->, CI<-> and salt corrosion resistant carbon steel enamels; the outer part of the vane is coated with rubber of 3 mm or plastic, so as to reduce the impact abrasion of crystal grains; and the rotational speed of the stirring device (3) can be adjusted and is 100-200 turn/min. Compared ...

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Номер записи: 11

14-07-2010 дата публикации

Method for integration of desulphurization and denitration of coal-fired flue gas by wet method

Номер: CN0101773778A

Автор: YINGLONG LIU, RENJIANG XIA, BO YANG, ZIPING ZENG, XIFEI ZHOU, LIU YINGLONG, XIA RENJIANG, YANG BO, ZENG ZIPING, ZHOU XIFEI

Принадлежит:

The invention relates to a method for integration of desulphurization and denitration of a coal-fired flue gas by a wet method, which belongs to the technical field of chemical engineering and environmental protection. On the technical basis of ZL200410622641.3 and ZL200610048701.8 of a company, the method performs the denitration by using a vapor-liquid catalytic oxidation and reduction principle while performing absorptive desulphurization according the facts that the coal-fired flue gas simultaneously contains SO2 and NOX required to be removed and NOX pollutants comprise 80 to 90 percent of NO and 10 percent of NO2 to ensure that part of the NO, used for the desulphurization by an ammonia method and the wet method, in the NOX is oxidized into the NO2 which is easy to be absorbed by solution of NH4OH, while sub-salts of (NH4)2SO3 and NH4HSO3 formed by desulfurizing the other part of the NOX are reduced into N2, so an integration process for the desulphurization and the denitration is ...

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Номер записи: 12

13-05-2009 дата публикации

Method of producing potassium sulfate with low-concentration flue gas sulphur dioxide

Номер: CN0101428830A

Автор: ZENG ZIPING, LIU YINGLONG, ZHOU XIFEI, CHEN HONG, XIA RENJIANG, YANG BO, ZIPING ZENG, YINGLONG LIU, XIFEI ZHOU, HONG CHEN, RENJIANG XIA, BO YANG

Принадлежит:

The invention relates to a method for producing potassium sulfate by using low-concentration fume sulfur dioxide, and belongs to the technical field of chemical engineering and environmental protection. The method comprises the following steps: absorbing ammonium sulfate solution produced by SO2 by using industrial potassium chloride and the ammonia process to continuously charge according to the mass ratio of KCl/(NH4)2SO4 equal to 1.05 to 1.1, wherein the charging time is 90 to 120 min, the reaction time is 30 min, the stirring rate is 150-200 turns/minute, the liquid to solid ratio L/S is equal to 1.2 to 1.3, the reaction temperature is 28 to 35 DWG C, the concentration of solution K<+> is controlled with the scope of 58 to 68 g/L; adding 5 to 7 percent of 100 to 200 meshes of potassium sulfate inoculating crystal according to the output of K2SO4 after charging for 10 min, filtering after the completion of reaction, and vaporizing filtrate after being filtered to obtain byproduct m NH4Cl.KCl ...

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Номер записи: 13

04-03-2015 дата публикации

Method for producing liquid sulfur dioxide by using sulfur-containing flue gas

Номер: CN104386653A

Автор: ZENG ZIPING, ZHOU XIFEI

Принадлежит:

The invention relates to a method for producing liquid sulfur dioxide by using sulfur-containing flue gas and belongs to the technical field of chemical engineering and environment protection. The method comprises the following steps: a, absorbing the sulfur-containing flue gas by desulfurization absorption liquid to obtain a sulfur-containing absorption liquid; b, adding sulfuric acid into the sulfur-containing absorption liquid, and performing decomposition to obtain acidolysis liquid and SO2 gas containing steam; c, spraying and drying the SO2 gas containing the steam by using the sulfuric acid till the water content of the SO2 gas is smaller than or equal to 0.2 g/Nm<3>; d, pressurizing, de-oiling and liquefying the dried SO2 gas under the pressure condition of 0.25-0.7 MPa to obtain the liquid sulfur dioxide. The method has the benefits that a flue gas desulfurization byproduct is the liquid sulfur dioxide, so that the economic benefits of the flue gas are remarkably improved, and ...

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Номер записи: 14