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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 40. Отображено 40.
21-05-2014 дата публикации

Preparation method of industrial silicon smelting reducer

Номер: CN103803552A
Автор: BAO CHONGJUN, LI ZONGYOU, SU JIE, WANG JIKUN, XIE GANG, WANG JIANBO, LI XIAOYANG, YANG GANG, YANG DAJIN, LU GUOHONG, JIAN SHENG, WANG ZILONG, ZHANG YONGPING, CHEN KETONG, LI HUAIREN, HE XIAOCAI, XU NA, ZHOU JIE, ZHANG ZHONGYI, REN CHENGWEI, LI XIAOYING, XU YAFEI, LI YONGGANG, DIAO WEIZHI, YU ZHANLIANG, ZHANG HUI, ZHANG WEI, LI JUN
Принадлежит:

The invention discloses a preparation method of an industrial silicon smelting reducer. The preparation method comprises the steps of uniformly mixing blind coal, a binder, various types of carbon powder and biomass to obtain a mixed material; adding the prepared mixed material in batches into a material bin of a molding machine, fully stirring in the material bin and slowly heating to the temperature of 80 DEG C to 300 DEG C, allowing the material to enter a pellet pressing system by the effect of the gravity of the material, and then performing a hot-press molding process to prepare pellets of which the sizes are from 150mm to 600 mm; rapidly demolding and drying the obtained pellets through cooling and scouring of water; adding the cooled and scoured pellets in batches into an industrial silicon ore-smelting furnace to replace charcoal to produce a high-quality industrial silicon product. An industrial silicon pellet reducer produced by the preparation method disclosed by the invention ...

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Номер записи: 1
27-06-2023 дата публикации

Method for preparing germanium concentrate from zinc-germanium leaching solution through neutralization precipitation method

Номер: CN116334416A
Автор: FU WEIQIN, LIU JUNCHANG, ZOU WEI, MOU XINGBING, HE XIAOCAI, XU FUSHUN, WANG KUN, YANG RUIXIAO
Принадлежит:

The method comprises the following steps: (1) adding zinc oxide smoke dust into the zinc-germanium leachate, adjusting the pH value to 3.0-3.5, reacting for 5-60 minutes at the temperature of 50-70 DEG C, carrying out liquid-solid separation to obtain pre-neutralized liquid and pre-neutralized slag, and returning the pre-neutralized slag to a zinc hydrometallurgy system; (2) adding a neutralizer A which is 0.6-0.8 time of the theoretical amount into the pre-neutralized solution obtained in the step (1), controlling the reaction temperature to be 70-90 DEG C, and reacting for 1-2 hours; and then introducing into an ultrasonic cavitation generation device, adding a neutralizer B, adjusting the pH value to 5.2-5.4, reacting for 1-3 hours, after the reaction is finished, carrying out liquid-solid separation to obtain neutralized liquid and neutralized germanium slag, and returning the neutralized liquid to a zinc hydrometallurgy system. And (3) washing the neutralized germanium slag obtained ...

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Номер записи: 2
15-08-2023 дата публикации

Method for improving grade of beta-naphthol cobalt slag through pressurized alkaline leaching

Номер: CN116590537A
Автор: MOU XINGBING, LIU JUNCHANG, WANG KUN, FU WEIQIN, YANG RUIXIAO, ZOU WEI, HE XIAOCAI, DIAO WEIZHI, YAN SEN
Принадлежит:

The invention discloses a method for improving the grade of beta-naphthol cobalt slag through pressurized alkaline leaching, which comprises the steps of pressurized alkaline leaching and post-treatment: adding a sodium hydroxide solution into cobalt slag, uniformly mixing, and carrying out alkaline leaching under the conditions that the temperature is 120-160 DEG C and the pressure is 0.2-0.6 Pa to obtain a material a; filtering the material a to obtain filtrate b and filter residue c; the filtrate b is enriched liquid and is subjected to water treatment, and the filter residue c is enriched cobalt residue. Specific alkalinity, temperature, pressure and time are adopted, the grade of cobalt in the alkaline leaching residues can be improved, and cobalt loss is small.

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Номер записи: 3
12-08-2015 дата публикации

Process for making artificial rutile by leaching of mohsite hydrochloric acid

Номер: CN104828864A
Автор: CUI TAO, YUAN YE, HE XIAOCAI, PENG JIANRONG, XIE GANG, LI XIAOYING, LAI JUN, XIE TIANJIAN, SHI HUIXIAN, TIAN LIN, XU QINGXIN, XU NA, WEI KE, KE LANG, XU JUNYI
Принадлежит:

The invention relates to a process for making artificial rutile by leaching of mohsite hydrochloric acid and belongs to the technical field of metallurgy. The process includes using mohsite graded at 45-52% as raw materials, and distributing carbonaceous reducing agent for reducing roasting, pressure leaching, filtering, roasting, and regenerating of hydrochloric acid, so that impurity removal of mohsite and recycling of hydrochloric acid are effectively realized and artificial rutile is made. The process is characterized in that mohsite and carbonaceous reducing agent are uniformly mixed for reducing roasting, and leaching rate of impurities like silicon, iron, calcium and magnesium is increased; hydrochloric acid is regenerated by distilling leaching mother liquor and can be reused in leaching; filter slag can be roasted after pressurized leaching and filtering so as to obtain artificial rutile. The process has the advantages of high leaching speed, high impurity removal efficiency, high ...

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Номер записи: 4
30-06-2023 дата публикации

Method for enriching germanium from low-grade germanium material

Номер: CN116356162A
Автор: SHI HUIXIAN, HE XIAOCAI, LI YINA, REN JIUYANG, XU QINGXIN, YUAN YE, XU NA, WAYUYA, REN TING, XU YUAN, YUAN WEI, DIAO WEIZHI, YAN SEN, LI QING, ZHANG HUI
Принадлежит:

The invention discloses a method for enriching germanium from a low-grade germanium material. The method comprises the steps of pretreatment, material covering, brick making and calcination. The low-grade germanium material comprises low-grade germanium-containing copper concentrate, lignite, coal ash, smelting slag, lead zinc ore, smoke dust and the like. High-grade germanium smoke dust and ultralow-grade germanium molten slag are obtained after the raw materials are mixed into germanium-containing materials as auxiliary materials and are subjected to batching, material mixing, material covering, brick making and high-temperature calcination, and copper matte products can be obtained if the raw materials contain copper.

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Номер записи: 5
07-01-2009 дата публикации

Method for preparing high pure carbon for industrial carbon

Номер: CN0101337669A
Автор: ZANG JIAN, YANG DAJIN, HE XIAOCAI, DONG YING, CHEN JIAXI, JIAN ZANG, DAJIN YANG, XIAOCAI HE, YING DONG, JIAXI CHEN
Принадлежит:

A method for preparing carbon of high purity from industrial carbon comprises the steps of (1) sizing mixing of the industrial carbon which is ground to 98 percent and goes through a 0.0043mm of screen with a hydrochloric acid solution of 30g/L to 60g/L in the weight proportion of 1 to 4; warming and agitating in a water bath kennel at the controlling temperature of 50 DEG C to 80 DEG C; filtering after acid dipping reaction for 2 to 5 hours; washing the filtered industrial carbon after acid dipping to neutral by using purified water; (2) sizing mixing the neutral industrial carbon with a sodium hydroxide solution of 30g/L to 60g/L in the weight proportion of 1 to 4; introducing into a pressure reactor, heating and agitating at the controlling temperature of 120 DEG C to 220 DEG C under the pressure of 1.0MPa to 1.6Mpa; filtering after alkali dipping reaction for 2 to 5 hours; washing the filtered industrial carbon to neutral by using purified water to produce the carbon of high purity.

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Номер записи: 6
11-03-2015 дата публикации

Copper scum treatment technique

Номер: CN104404262A
Автор: BAO CHONGJUN, XU FUSHUN, ZHANG XUDONG, JIAN SHENG, XIE GANG, HE XIAOCAI, YAN SEN, LI XIAOYING, PENG JIANRONG, TIAN LIN, ZHANG ANFU, ZHANG YONGPING, CHEN KETONG, ZHAI ZHONGBIAO, XU YAFEI, LI YONGGANG, XU NA, SHI HUIXIAN, LI JUN
Принадлежит:

The invention discloses a copper scum treatment technique which comprises the steps of pretreatment, acid leaching and after-treatment. The technique specifically comprises the following steps: crushing and grinding the raw material copper scum, adding a sulfuric acid solution (the solid-liquid volume ratio is 4-7 times) for size mixing, adding into a high-pressure autoclave, and carrying out leaching reaction at 120-150 DEG C for 60-120 minutes while introducing oxygen and controlling the pressure at 0.6-1.2 MPa to obtain a slurry a; and carrying out slag-liquid separation on the slurry a to obtain a leach solution b and charge slag c, electrodepositing the leach solution b to produce cathode copper, returning the spent electrolyte to the acid leaching step, and returning the charge slag c to the lead system to further recover lead, silver and other valuable metals. The technique solves the problems of high energy consumption, heavy environmental pollution, incomplete separation of copper ...

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Номер записи: 7
22-08-2023 дата публикации

Method for extracting germanium by acid burning

Номер: CN116623018A
Автор: HE XIAOCAI, SHI HUIXIAN, REN JIUYANG, XU NA, YUAN YE, XU QINGXIN, LI YINA, HE QIUGU, REN TING, XU YUAN, DIAO WEIZHI, YAN SEN, ZHANG HUI
Принадлежит:

The invention discloses a method for extracting germanium by acid burning, which comprises the steps of acid burning and post-treatment, and specifically comprises the following steps: adding acid into coal ash for size mixing to obtain a material a; heating the material a to 350-800 DEG C, and keeping the temperature for 10 minutes to 10 hours to obtain an acid melt b; grinding the acid melt b until the particle size of 200 meshes is greater than 60% to obtain a material c; distilling the material c to obtain residual slurry d and a distillation fraction e; hydrolyzing the distilled fraction e with a diluted hydrochloric acid solution, and then drying to obtain GeO2; according to the method, the trend of the metal element Ge is mainly controlled, effective extraction of Ge is achieved, the technological process is simple and easy to operate, the direct recovery rate of Ge is high, and economic benefits are remarkable.

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Номер записи: 8
04-08-2010 дата публикации

High-temperature pressure dehydrating process for metasilicic acid

Номер: CN0101792146A
Автор: HE XIAOCAI, LI HUAIREN, LI XIAOYING, LI YONGGANG, LI YONGJIA, YANG DAJIN, ZANG JIAN, ZHAO QUN, XIAOCAI HE, HUAIREN LI, XIAOYING LI, YONGGANG LI, YONGJIA LI, DAJIN YANG, JIAN ZANG, QUN ZHAO
Принадлежит:

The invention discloses a high-temperature pressure dehydrating process for metasilicic acid, which comprises the following steps: performing high-temperature pressure settlement on industrial sodium metasilicate solution to remove a large amount of crystal water, acid-washing the obtained metasilicic acid to remove impurities, and washing the removed acid by using high-purity water to obtain high-purity metasilicic acid in which the crystal water has low content and the impurities Al, Ti and Fe are effectively removed. The process overcomes the defects of the conventional industrial metasilicic acid dehydrating and purifying method. The process provided by the invention has short flow, and easily realizes industrialized production; meanwhile, the settled solution and acid-washed solution produced during removing the impurities are combined and neutralized and then evaporated and crystallized to reclaim sodium chloride; and the process is performed in a closed circulating system, does not ...

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Номер записи: 9
17-08-2011 дата публикации

Method for purifying calcined petroleum coke

Номер: CN0102153070A
Автор: XIAOYANG LI, GANG XIE, DAJIN YANG, HUAIREN LI, ZHANLIANG YU, JIANGFENG YAN, JIAN ZANG, XIAOCAI HE, LI XIAOYANG, XIE GANG, YANG DAJIN, LI HUAIREN, YU ZHANLIANG, YAN JIANGFENG, ZANG JIAN, HE XIAOCAI
Принадлежит:

The invention discloses a method for purifying calcined petroleum coke, which includes the steps of smashing, ball-milling and screening the calcined petroleum coke to obtain coke powder with particle size of 50-300 Mum; mixing the coke powder with alkali substance and then conducting alkalifying-roasting treatment in a melting pot; cooling the roasted material, later washing the material to remove the alkali substance, and washing to neutral; and acid-leaching the washed material with acid solution to remove impurities, and finally obtaining high-purity low-sulphur coke powder with sulphur content lower than 0.05%. The purity of the coke powder prepared by the method is above 99.99% and meets the requirements of special graphite on raw materials.

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Номер записи: 10
08-04-2015 дата публикации

Recycling process of sodium aluminate solution in aluminum-air battery preparation process

Номер: CN104495890A
Автор: XIE GANG, TIAN YONG, XU QINGXIN, HE XIAOCAI, LI HUAIREN, XU FUSHUN, LI XIAOYANG, WEI KE, CUI TAO, YUAN YE, KE LANG, XU JUNYI, YAO YUN, TIAN LIN, LAI JUN
Принадлежит:

The invention discloses a recycling process of a sodium aluminate solution in an aluminum-air battery preparation process. The process comprises the following steps: firstly, adding adsorbent activated carbon to a 155g/l waste electrolyte sodium aluminate solution, filtering, purifying, and carrying out crystal seed precipitation, thus achieving separation of sandy aluminum hydroxide and purified mother liquid; controlling the reaction time of preparation of sandy aluminum hydroxide to be 2-8 hours, the decomposition temperature to be 50-80 DEG C, the causticity ratio to be 1.53, the seed ratio to be 0.35, the stirring speed to be 75-150rpm, and the agglomerative efficiency to be 90%-350%, so as to prepare sandy aluminum hydroxide; carrying out high-temperature transformation on sandy aluminum hydroxide which is decomposed by crystal seed precipitation at the calcination temperature of 1,000-1200 DEG C; and feeding to an electrolytic aluminum system. The purified mother liquid can be reused ...

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Номер записи: 11
25-03-2015 дата публикации

Additive as well as preparation method and application thereof

Номер: CN104451763A
Автор: ZHAI ZHONGBIAO, LI XIAOYING, LI YONGJIA, BAO CHONGJUN, PENG JIANRONG, YAN SEN, YANG DAJIN, LI HUAIREN, ZHANG YONGPING, HE XIAOCAI, ZHANG HUI, LIU JUNCHANG, XU QINGXIN
Принадлежит:

The invention discloses an additive as well as a preparation method and application thereof. The additive comprises polyethylene glycol, 2-mercaptobenzimidazole, thiourea, gelatin, polyacrylamide, triethanolamine and cresol. The preparation method comprises steps of pre-treatment and preparation, namely, the following specific steps of respectively weighting gelatin, thiourea and 2-mercaptobenzimidazole according to a blending ratio, pulverizing and mixing to obtain a material A; and adding the material A into an electrolyte, stirring until the material A is dissolved and adding cresol and polyethylene glycol to obtain a solution B, adding polyacrylamide and triethanolamine at the blending ratio into the solution B and stirring until polyacrylamide and triethanolamine are completely dissolved to obtain the target product. The additive disclosed by the invention is applied in production of tetraethyl titanate. By the additive, the resistance of the electrolyte can be reduced so as to accelerate ...

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Номер записи: 12
20-02-2008 дата публикации

Method for producing high-purity silicon dioxide

Номер: CN0101125657A
Автор: JIAN CANG, DAJIN YANG, JIANRONG PENG, JIAXI CHEN, DEQING YU, XIAOCAI HE, YING DONG, CANG JIAN, YANG DAJIN, PENG JIANRONG, CHEN JIAXI, YU DEQING, HE XIAOCAI, DONG YING
Принадлежит:

The invention relates to a production method of high purity silicon dioxide; by adopting the method and using industry, a high purity silicon dioxide with a purity as high as 99.999 percent can be prepared from industry sodium metasilicate through removing impurities by pressured lime, silicon precipitation by CO2 carbonation method, impurities removing by pressured acid cleaning, washing by high purity water, and high temperature drying and dehydtating. The invention has the advantages of simple technique, easy fluid-solid separation, less environment pollution, high added value, and high purity of silicon dioxide product.

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Номер записи: 13
07-07-2023 дата публикации

Method and device for determining single-ended transient equivalence of LCC-HVDC sending system

Номер: CN116404694A
Автор: WANG BIN, HE XIAOCAI
Принадлежит:

The invention provides an LCC-HVDC sending-out system single-end transient equivalence determination method and device, and the method comprises the steps: collecting an inverter side three-phase AC voltage in real time, and determining an inverter side AC line voltage effective value according to the inverter side three-phase AC voltage; determining a commutation angle and an extinction angle; when the extinction angle is larger than a preset minimum extinction angle threshold value, it is judged that no commutation failure occurs, and an original thyristor switching function is maintained, and otherwise, it is judged that commutation failure occurs, and the thyristor switching function is modified; and enabling the inverter-side direct current to pass through the three-phase current switching function to obtain and output inverter-side three-phase current. The transient response calculation of the LCC-HVDC sending-out system can be carried out only based on the local measurement information ...

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Номер записи: 14
27-06-2023 дата публикации

Method for recovering cobalt from zinc hydrometallurgy cadmium-poor liquid

Номер: CN116334406A
Автор: LIU JUNCHANG, MOU XINGBING, FU WEIQIN, ZOU WEI, XIE GANG, HE XIAOCAI, DIAO WEIZHI, XU FUSHUN, WANG KUN, YANG RUIXIAO, YAN SEN
Принадлежит:

The invention discloses a method for recovering cobalt from zinc hydrometallurgy cadmium-poor liquid, which belongs to the technical field of non-ferrous metallurgy and comprises the following steps: oxidizing and precipitating cobalt and manganese in the cadmium-poor liquid by manganate, returning the liquid after cobalt precipitation to a zinc system, washing cobalt and manganese residues with weak acid, returning pickling water to a zinc smelting process, washing the cobalt and manganese residues, mixing the washed cobalt and manganese residues with alkali, and oxidizing and roasting. Cobalt and manganate are separated from the roasted product through weak alkali leaching, the solution is returned to be used for oxidizing and precipitating cobalt and manganese in the cadmium-poor solution or serves as an oxidizing agent to be used in the zinc smelting iron removal process, alkali washing water is returned to the roasted product to be subjected to weak alkali leaching after slag water ...

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Номер записи: 15
23-05-2023 дата публикации

Method for enriching germanium from low-concentration germanium-containing zinc oxide smoke leachate

Номер: CN116144953A
Автор: FU WEIQIN, LIU JUNCHANG, ZOU WEI, MOU XINGBING, YANG NI, XIE GANG, HE XIAOCAI, LI XIAOYING, WANG KUN, DIAO WEIZHI, YANG RUIXIAO
Принадлежит:

The invention discloses a method for enriching germanium from a low-concentration germanium-containing zinc oxide smoke dust leaching solution. Belongs to the technical field of hydrometallurgy. The germanium is enriched by adopting a reduction-neutralization precipitation-low acid leaching method, and the method specifically comprises the following steps: adding a reducing agent into a zinc oxide smoke dust leaching solution for reduction to obtain a reduced solution, adding 10-30g/L of a neutralizing agent for reaction, after the reaction is finished, carrying out liquid-solid separation to obtain a neutralized solution and neutralized germanium slag, and returning the neutralized solution to a zinc hydrometallurgy main system to recover zinc. And the neutralized germanium slag and a sulfuric acid solution are mixed for size mixing, after the reaction is finished, liquid-solid separation is carried out to obtain leaching slag and germanium-rich leaching liquid, the leaching slag returns ...

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Номер записи: 16
03-09-2014 дата публикации

Combined carbon reducing agent for yellow phosphorus production and preparation method of combined carbon reducing agent

Номер: CN104016318A
Автор: YU ZHANLIANG, TIAN LIN, XIE GANG, HE XIAOCAI, LI NAN, SHI HUIXIAN, XIE TIANJIAN, XU NA, CHEN JIAHUI, LIANG ZHI, WANG ZUXU
Принадлежит:

The invention discloses a combined carbon reducing agent for yellow phosphorus production and a preparation method of the combined carbon reducing agent. The aggregate of the combined carbon reducing agent consists of coke powder and purified carbon powder, wherein a mass ratio of the coke powder to the purified carbon powder is 100: (1-25). The method for preparing the combined carbon reducing agent for yellow phosphorus production comprises the following steps: preheating, burdening, kneading, molding and roasting. The purified carbon powder obtained by performing flotation on an aluminum electrolysis waste cathode carbon block and undersize coke powder generated in yellow phosphorus industry are taken as raw materials, and the combined carbon reducing agent which meets the yellow phosphorus production process requirement is prepared. The industrial solid wastes are effectively utilized, the environment is protected, a low-price industrial reducing agent is prepared for the yellow phosphorus ...

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Номер записи: 17
19-08-2015 дата публикации

Method for preparing high-purity calcium sulfate dihydrate crystal whisker by using metallurgic flue gas desulfurization gypsum recrystallization process

Номер: CN104846440A
Автор: HE XIAOCAI, ZHENG SHAOCONG, YANG NI, XIE GANG, YU QIANG, XU QINGXIN, XU JUNYI, LI YUGENG, ZHAO YUN
Принадлежит:

The invention discloses a method for preparing a high-purity calcium sulfate dihydrate crystal whisker by using a metallurgic flue gas desulfurization gypsum recrystallization process. The method comprises the steps of pickling metallurgic flue gas desulfurization gypsum to remove a small deal of calcium carbonate or calcium oxide and soluble impurities; dissolving the gypsum by using a salt-containing acid solution to obtain a product used as a raw material for preparing the high-purity calcium sulfate dihydrate crystal whisker; adding a medium crystal agent to control the controllable growth of a calcium sulfate crystal whisker to form a calcium sulfate crystal whisker with controllable length-to-diameter ratio and complete crystal appearance, filtering and drying to obtain the calcium sulfate dehydrate crystal whisker. The recycling of the high-added-value calcium sulfate crystal whisker prepared from the metallurgic flue gas desulfurization gypsum is realized under normal-pressure and ...

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Номер записи: 18
07-01-2015 дата публикации

Method for harmlessly treating aluminum ash and preparing sandy alumina

Номер: CN104261445A
Автор: XIE GANG, YU ZHANLIANG, HAO HONGJIE, HE XIAOCAI, XIE TIANJIAN, TIAN LIN, YAO YUN, SHI HUIXIAN, KE LANG, XU NA
Принадлежит:

The invention discloses a method for harmlessly treating aluminum ash and preparing sandy alumina. The method disclosed by the invention mainly comprises the following main steps of remelting, alkaline washing, drying and sintering, dissolving out, filtrating and purifying, carbon component decomposition, and roasting, and is specifically implemented by taking aluminum ash produced in the processes of aluminum electrolytic smelting and coarse aluminum refining as a raw material through the process post-treatment steps of recovering metallic aluminium, carrying out alkaline wash for removing impurities, sintering sodium carbonate, dissolving out sintered clinker, carrying out deep impurities removal on a sodium aluminate solution, separating and washing carbon components and aluminum hydroxide, roasting aluminum hydroxide, evaporating carbon component mother liquor, and the like, so that a sandy alumina product is obtained. Fluorine in aluminum ash, after being discharged in silicon fluoride ...

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Номер записи: 19
23-06-2023 дата публикации

Medicament H-HJ01 for activating germanium as well as preparation method and application of medicament H-HJ01

Номер: CN116287791A
Автор: HE XIAOCAI, SHI HUIXIAN, XU QINGXIN, LI YINA, YUAN YE, REN JIUYANG, WAYUYA, XU NA, REN TING, XU YUAN, YUAN WEI, DIAO WEIZHI, YAN SEN, LI QING, ZHANG HUI
Принадлежит:

The invention discloses an agent H-HJ01 for activating Ge as well as a preparation method and application of the agent H-HJ01. The agent H-HJ01 for activating Ge is prepared from raw materials including sulfur dioxide, sodium hydroxide, yellow phosphorus and sodium chloride through complex reaction. The preparation method of the agent H-HJ01 for activating Ge comprises the steps of complex reaction, reduced pressure distillation, cooling crystallization and air cooling drying treatment. The application is the application of the agent H-HJ01 for activating Ge in enrichment of low-grade germanium ore. The agent H-HJ01 for activating Ge can effectively improve the recovery rate of Ge enriched by a pyrogenic process, lays a foundation for preparing germanium chemicals, and is applied to germanium enriched by a germanium-containing copper concentrate pyrogenic process, and the comprehensive recovery rate of germanium is greater than 95%.

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Номер записи: 20
02-06-2010 дата публикации

Method for preparing high pure carbon from industrial carbon

Номер: CN0101337669B
Автор: DONG YING, YANG DAJIN, ZANG JIAN, HE XIAOCAI, CHEN JIAXI, YING DONG, DAJIN YANG, JIAN ZANG, XIAOCAI HE, JIAXI CHEN
Принадлежит:

A method for preparing carbon of high purity from industrial carbon comprises the steps of (1) sizing mixing of the industrial carbon which is ground to 98 percent and goes through a 0.0043mm of screen with a hydrochloric acid solution of 30g/L to 60g/L in the weight proportion of 1 to 4; warming and agitating in a water bath kennel at the controlling temperature of 50 DEG C to 80 DEG C; filteringafter acid dipping reaction for 2 to 5 hours; washing the filtered industrial carbon after acid dipping to neutral by using purified water; (2) sizing mixing the neutral industrial carbon with a sodium hydroxide solution of 30g/L to 60g/L in the weight proportion of 1 to 4; introducing into a pressure reactor, heating and agitating at the controlling temperature of 120 DEG C to 220 DEG C under the pressure of 1.0MPa to 1.6Mpa; filtering after alkali dipping reaction for 2 to 5 hours; washing the filtered industrial carbon to neutral by using purified water to produce the carbon of high purity.

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Номер записи: 21
22-04-2015 дата публикации

Manganese dioxide-carbon-based silvered aluminum air battery air electrode and production method thereof

Номер: CN104538706A
Автор: XIE GANG, TIAN YONG, HE XIAOCAI, LI HUAIREN, YAO YUN, XU JUNYI, KE LANG, CUI TAO, LAI JUN, TIAN LIN, XU QINGXIN, WEI KE, YUAN YE, YU DEQING, ZHOU TINGXI, ZANG JIAN, YU QIANG
Принадлежит:

The invention relates to a manganese dioxide-carbon-based silvered aluminum air battery air electrode and a production method thereof, and belongs to the technical field of aluminum air battery production. The production method comprises the following steps: electrodepositing in a silver nitrate and potassium metabisulfite solution with manganese dioxide-carbon as a substrate and cathode and a stainless steel plate as an anode to make silver atoms form a nanometer sliver coating on the surface of the manganese dioxide-carbon substrate under the electrodepositing effect, and drying the obtained manganese dioxide-carbon-based silver electrode in order to obtain the air electrode with the current density of 180-250mA.cm<-2> and the voltage platform voltage of 1.5-1.8V. The current density of an aluminum air battery including the electrode produced in the invention is greatly higher than that of an aluminum air battery produced in the prior art, and the catalysis efficiency of the aluminum ...

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Номер записи: 22
08-04-2015 дата публикации

Air electrode used in aluminum-air battery and preparation method of air electrode

Номер: CN104505520A
Автор: XIE GANG, TIAN YONG, ZANG JIAN, YU QIANG, XU JUNYI, HE XIAOCAI, LI HUAIREN, YAO YUN, KE LANG, CUI TAO, LAI JUN, TIAN LIN, XU QINGXIN, WEI KE, YU DEQING, ZHOU TINGXI
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The invention relates to an air electrode used in an aluminum-air battery and a preparation method of the air electrode and belongs to the technical field of batteries. The air electrode can be used in the aluminum-air battery as a positive electrode and is prepared by laminating three layers, namely, a waterproof and gas-permeable layer, a catalyst layer and a collector layer, wherein the catalyst layer comprises the following components in percentage by weight: 30-90% of an electrode catalytic material, 5-30% of a conductive material and 5-40% of a binder material, wherein the total weight of the electrode catalytic material, the conductive material and the binder material is 100% by weight. By controlling the crystal form, doping metals, compounding carbon and the like, the obtained modified manganese dioxide material has catalytic efficiency comparable to that of a noble metal catalyst and can provide higher power for the aluminum-air battery. The preparation method of the catalytic ...

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Номер записи: 23
22-04-2015 дата публикации

Method for manufacturing air electrode of aluminum-air cell

Номер: CN104538646A
Автор: XIE GANG, CUI TAO, LI HUAIREN, HE XIAOCAI, XU FUSHUN, XU JUNYI, LAI JUN, YUAN YE, KE LANG, YAO YUN, LIU ZHAOHUA, XU QINGXIN, WEI KE, XIE TIANJIAN, SHI HUIXIAN
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The invention relates to a method for manufacturing an air electrode of an aluminum-air cell, and belongs to the field of aluminum-air cells. Potassium permanganate is adopted as raw materials, manganese dioxide catalysts are prepared through a hydrothermal synthesis method, carbon-based manganese dioxide catalysts and bonder polyvinylidene fluoride are mixed in proportion and fully and evenly ground in an agate mortar, then N-methyl pyrrolidone solvents are added, grinding continues to be carried out, and sizing agents are formed. A polytetrafluoroethylene film and a conductive nickel screen are compounded into a conductive waterproof and breathable film, the catalyst sizing agents are smeared to the conductive waterproof and breathable film, and the air electrode for the aluminum-air cell is obtained through drying and ageing. Manganese dioxide is prepared through hydro-thermal synthesis, the air electrode is manufactured through film coating, and the advantages of being simple in process ...

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Номер записи: 24
25-08-2023 дата публикации

Method for extracting germanium from hard zinc

Номер: CN116640938A
Автор: HE XIAOCAI, SHI HUIXIAN, YUAN YE, REN JIUYANG, XU NA, XU QINGXIN, LI YINA, HE QIUGU, REN TING, XU YUAN, DIAO WEIZHI, YAN SEN, ZHANG HUI
Принадлежит:

The invention discloses a method for extracting germanium in hard zinc, which comprises the following steps: adding hard zinc into a slag former, and remelting and slagging at high temperature to obtain a metal layer and a slag layer. Then, the slag layer is subjected to crushing, water leaching, washing and filtering treatment, and water leaching washing slag and water leaching mixed liquid (water leaching liquid and water leaching slag washing liquid) are obtained; acid leaching is carried out on the water leaching washing residues, and acid leaching washing residues and acid leaching mixed liquid (acid leaching liquid and acid leaching residue washing liquid) are obtained after washing and filtering are carried out; after neutralization reaction of the water leaching mixed solution and the acid leaching mixed solution, filtering to obtain neutralized slag and neutralized solution, dissolving the neutralized slag with HCl, distilling, hydrolyzing and calcining to obtain GeO2; and the ...

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Номер записи: 25
25-07-2023 дата публикации

Method for treating arsenic in arsenic-containing solution by using zinc oxide smoke dust

Номер: CN116479245A
Автор: LIU JUNCHANG, ZOU WEI, MOU XINGBING, FU WEIQIN, XIE GANG, DIAO WEIZHI, HE XIAOCAI, WANG KUN, YANG RUIXIAO, YAN SEN
Принадлежит:

The invention discloses a method for treating arsenic in an arsenic-containing solution by using zinc oxide smoke dust. According to the method, liquid obtained after germanium precipitation of zinc oxide smoke dust leaching liquid is used as a raw material. Zinc oxide smoke dust is used as a neutralizer, potassium permanganate is used as an oxidizing agent, and a two-section countercurrent neutralization process is adopted, so that the zinc hydrometallurgy iron slag is reduced from the source. Researches show that the arsenic content of the solution is reduced to 8.60 mg/L from 719.20 mg/L, the arsenic removal rate reaches 98.83%, and the slag content is reduced to 8g/L under the conditions that the zinc oxide smoke consumption is 5g/L, the reaction temperature is 80 DEG C and the neutralization reaction time is 1h. And the slag is treated by an Isa furnace lead smelting system, so that the recovery of valuable metals such as zinc, lead and germanium and the centralized treatment of arsenic ...

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Номер записи: 26
25-07-2023 дата публикации

Method for removing copper from selenium-removed slag

Номер: CN116479233A
Автор: WAYUYA, HE XIAOCAI, XU QINGXIN, REN TING, SHI HUIXIAN, XU NA, YUAN YE, REN JIUYANG, XU YAFEI, ZHANG HUI
Принадлежит:

The invention discloses a method for removing copper from selenium-removed slag, which comprises the steps of sodium salt roasting and pressure leaching, and specifically comprises the following steps: (1) uniformly mixing the selenium-removed slag and sodium carbonate according to the ratio of 10: 3-10: 1, putting into a box-type furnace, heating to 500-700 DEG C, reacting for 0.5-1.5 hours, cooling to room temperature after the reaction is finished, and taking out roasted slag; and (2) carrying out size mixing on the roasting slag by using 50-150g/L of acid, transferring the size mixing material into an autoclave, setting the reaction temperature to be 100-150 DEG C and the working pressure to be 0.2-2.0 kPa, carrying out reaction for 1-2 hours, after the reaction is stopped, taking out the material, and filtering, so that the filter residue is rare and noble metal enriched residue, and the filtrate is a copper removal liquid. The method has the advantages of being short in operation ...

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Номер записи: 27
23-05-2023 дата публикации

Synchronous reduction and volatilization process for low-grade oxygen-sulfur mixed lead-zinc ore

Номер: CN116144943A
Автор: YUAN YE, XU QINGXIN, HE XIAOCAI, SHI HUIXIAN, REN JIUYANG, XU NA, WAYUYA, REN TING, LI YINA, XU YUAN
Принадлежит:

The invention discloses a synchronous reduction and volatilization process for low-grade oxygen-sulfur mixed lead-zinc ore. The synchronous reduction and volatilization process comprises the steps of pretreatment, synchronous reduction and volatilization and aftertreatment. The H-HJ01 activating agent is mainly used for achieving synchronous reduction, volatilization and enrichment of lead and zinc in the low-grade oxygen-sulfur mixed lead-zinc ore and subsequent leaching separation and lead-zinc smelting, and finally metal zinc and metal lead are obtained.

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Номер записи: 28
22-04-2015 дата публикации

Method for extracting zinc from low-grade zinc-containing material leaching liquid

Номер: CN104531995A
Автор: XIE GANG, CUI TAO, LI HUAIREN, HE XIAOCAI, PENG JIANRONG, YUAN YE, XU QINGXIN, LI XIAOYING, WEI KE, LAI JUN, KE LANG, XU JUNYI
Принадлежит:

The invention relates to a method for extracting zinc from a low-grade zinc-containing material leaching liquid and belongs to the technical field of metallurgy. According to the method, di(2-ethylhexyl phosphoric acid) and No. 260 aviation kerosene constitute an extraction organic phase, Zn<2+> is extracted from the low-grade zinc-containing material leaching liquid, reverse extraction is performed with zinc electrodeposition waste liquid and thus the recovery of zinc in the leaching liquid can be effectively achieved. The method is characterized by comprising the following steps of firstly preparing a zinc sulfate solution with a certain concentration according to the concentration of zinc in the leaching liquid and the extraction effect of the used extractant, diluting the leaching liquid with the zinc sulfate solution and extracting the diluted solution so that all zinc in the leaching liquid is enriched into the organic phase; returning a part of raffinate for extracting and neutralizing ...

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Номер записи: 29
08-04-2015 дата публикации

Dearsenification method for tungsten, vanadium and arsenic-containing catalyst

Номер: CN104492421A
Автор: XIE GANG, XU QINGXIN, HE XIAOCAI, LI HUAIREN, WEI KE, XU YAFEI, LI YONGGANG, CUI TAO, YUAN YE, XU JUNYI, YAO YUN, KE LANG
Принадлежит:

The invention discloses a dearsenification method for a tungsten, vanadium and arsenic-containing catalyst. The method can be used for effectively removing arsenide in the catalyst and further reducing loss of tungsten and vanadium, so that the As2O3 content is less than 0.15%, the dearsenification rate can reach 95% and the WO3 and V2O5 loss rate are less than 30%. The method is simple in process and reliable and feasible. By adopting a method of alkaline leaching to dearsenificate in ultrasonic waves, the arsenide removal rate in the catalyst is relatively high, and an inhibiting agent is added, so that the loss of tungsten and vanadium can be effectively controlled. The wastewater generated in the process can be treated by Ca(OH)2 and is reused in the system. The technical process is a closed system which can be used for realizing cyclic utilization, is free of environmental pollution and further can be used for lowering the cost.

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Номер записи: 30
14-07-2010 дата публикации

Process for removing impurities from solution of sodium metasilicate through pressurization

Номер: CN0101774597A
Автор: HE XIAOCAI, LI HUAIREN, LI XIAOYING, LI YONGGANG, LI YONGJIA, YANG DAJIN, ZANG JIAN, ZHAO QUN, XIAOCAI HE, HUAIREN LI, XIAOYING LI, YONGGANG LI, YONGJIA LI, DAJIN YANG, JIAN ZANG, QUN ZHAO
Принадлежит:

The invention discloses a process for removing impurities from solution of sodium metasilicate through pressurization, which comprises the following steps of: neutralizing industrial solution of sodium metasilicate for removing the impurities, pressurizing the industrial solution of sodium metasilicate at a high temperature for removing Al, Ti and Fe to obtain the solution of sodium metasilicate, and finally evaporating and crystallizing the obtained solution of sodium metasilicate to obtain high-purity sodium metasilicate. The process flow is short and industrial production is easy to realize, wherein the impurities such as aluminum, titanium, iron and the like are removed efficiently; synchronously, neutral dregs, Al-removed dregs, Ti-removed dregs and Fe-removed dregs in an impurity-removing process are returned to a roasting system; a closed circulating system is formed in the process; environmental pollution is free; and production cost is reduced.

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Номер записи: 31
22-04-2015 дата публикации

Recovery process of complex multi-metal ores difficult to treat

Номер: CN104531988A
Автор: XIE GANG, CUI TAO, LI HUAIREN, HE XIAOCAI, PENG JIANRONG, YUAN YE, XU QINGXIN, LI XIAOYING, WEI KE, LAI JUN, KE LANG, XU JUNYI
Принадлежит:

The invention discloses a recovery process of complex multi-metal ores difficult to treat and belongs to the technical field of ore dressing. According to the process, the complex multi-metal ores difficult to treat are taken as the raw materials, products such as gold, silver, copper, zinc, sulfur, lead concentrate and iron slag are extracted by virtue of the steps of ore fine grinding, high-temperature oxidative pressure leaching, copper and zinc recovery by extraction, gold and silver recovery by virtue of thiourea leaching, and lead, iron and sulfur separation by ore separation, and comprehensive recovery of the multi-metal gold ores is realized. The recovery process of the complex multi-metal ores difficult to treat is mainly characterized in that the high-temperature oxidative pressure leaching is performed on the complex multi-metal ores difficult to treat after fine grinding, copper and zinc in the leachate are recovered by use of an extraction-electrodeposition technique, and the ...

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Номер записи: 32
19-08-2015 дата публикации

Method for pelletizing artificial rutile powder

Номер: CN104843775A
Автор: CUI TAO, HE XIAOCAI, XIE GANG, PENG JIANRONG, YUAN YE, LAI JUN, TIAN LIN, KE LANG, XU JUNYI, XU QINGXIN, XU NA, XIE TIANJIAN, SHI HUIXIAN
Принадлежит:

The invention discloses a method for pelletizing artificial rutile powder. The crushed artificial rutile particles obtained in the process of leaching ilmenite by use of a hydrochloric acid method are taken as the raw material, and the raw material is pelletized to obtain a furnace charge which is moderate in grain and strength and applicable to preparing TiCl4 by use of a boiling chlorination method; the process is simple, the cost is relatively low, and the powdered artificial rutile can be effectively utilized. The raw material adopted in the method is the powdered material generated in the artificial rutile preparation process; the material is difficult to use as the raw material of a boiling chlorination furnace; as being pelletized by use of a disk granulating machine, the powdered artificial rutile material can be utilized and the resource utilization rate can be increased; the obtained artificial rutile spherical particles are even in granularity, moderate in strength, and capable ...

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Номер записи: 33
08-04-2015 дата публикации

Alkaline aluminum power battery anode composite corrosion inhibitor and preparation method of electrolyte

Номер: CN104505559A
Автор: XIE GANG, TIAN YONG, ZANG JIAN, YU QIANG, KE LANG, HE XIAOCAI, LI HUAIREN, YAO YUN, XU JUNYI, CUI TAO, LAI JUN, TIAN LIN, XU QINGXIN, WEI KE, YU DEQING, ZHOU TINGXI
Принадлежит:

The invention relates to an alkaline aluminum power battery anode composite corrosion inhibitor and a preparation method of electrolyte and belongs to the technical field of battery fabrication. The composite corrosion inhibitor comprises an inorganic corrosion inhibitor, an organic corrosion inhibitor and a dye, wherein the inorganic corrosion inhibitor comprises the following raw materials by concentration in an alkaline electrolyte: 0.01-0.2mol/L of zinc oxide, 0.001-0.03mol/L of calcium oxide and 0.001-0.1mol/L of bismuth oxide; the organic corrosion inhibitor comprises the following raw materials in percentage by weight: 0.001-0.03wt% of gelatin, 0.001-0.03wt% of bone glue and 0.05-0.5wt% of an organic surfactant; and the dye is 0.001-0.01wt% of an inorganic dye. According to the alkaline aluminum power battery anode composite corrosion inhibitor, self-corrosion of an aluminum power battery anode in an alkaline solution can be effectively controlled; and relatively high electrochemical ...

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Номер записи: 34
15-08-2023 дата публикации

Method for preparing nano silver powder

Номер: CN116586604A
Автор: LI YINA, XU QINGXIN, SHI HUIXIAN, HE XIAOCAI, YUAN YE, REN JIUYANG, REN TING, WAYUYA, XU NA, XU YUAN, DIAO WEIZHI, YAN SEN, ZHANG HUI, XU YAFEI
Принадлежит:

The invention discloses a method for preparing nano silver powder, and belongs to the field of silver oxide material preparation. Comprising the following steps: preparing and purifying a silver nitrate solution, preparing an alkali solution, preparing an emulsifier solution, preparing a surfactant solution, adding the emulsifier solution and the surfactant solution into the silver nitrate solution under a stirring condition, uniformly dispersing, dropwise adding the alkali solution into the mixed solution, and uniformly stirring, thereby obtaining the silver-loaded surfactant. And after the neutralization reaction precipitation is finished, washing and vacuum drying are performed to prepare the high-purity nano silver oxide powder material. The particle size of the silver oxide prepared by the method is 40-80nm, the morphology can be spheroidized, and the impurity content is Nblt; the content of other impurities is less than 1t; the method is relatively short in process flow, and can be ...

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Номер записи: 35
04-05-2011 дата публикации

Process for preparing precipitated white carbon black by adopting carbon dioxide for decomposition

Номер: CN0102040225A
Автор: DAJIN YANG, HUAIREN LI, XIAOCAI HE, YANG DAJIN, LI HUAIREN, HE XIAOCAI
Принадлежит:

The invention relates to a process for preparing precipitated white carbon black by adopting carbon dioxide for decomposition. The process comprises the following steps: introducing the precipitator carbon dioxide into industrial sodium metasilicate solution with the pH value of 12.5-13.5 to react, stopping introducing the carbon dioxide when the pH value of the solution is 8.5-9.0, filtering the reactant to obtain metasilicic acid filter residues and filtrate containing sodium carbonate; adding water to metasilicic acid according to the liquid solid mass ratio of 6:1, stirring and washing the mixture, filtering the mixture and then washing entrained sodium carbonate solution, and drying the product to obtain the precipitated white carbon black; and returning one half of the filtrate containing sodium carbonate to the sodium metasilicate solution to be dissolved again to precipitate the metasilicic acid and concentrating and crystallizing the other half of the filtrate to obtain sodium ...

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Номер записи: 36
22-04-2015 дата публикации

Production method of octonary aluminum alloy anode for aluminum-air batteries

Номер: CN104532037A
Автор: XIE GANG, TIAN YONG, ZANG JIAN, YU QIANG, YAO YUN, HE XIAOCAI, LI HUAIREN, TIAN LIN, KE LANG, XU JUNYI, LIU ZHAOHUA, CUI TAO, LAI JUN
Принадлежит:

The invention relates to a production method of an octonary aluminum alloy anode for aluminum-air batteries, and belongs to the technical fields of metallurgy and material processing. The production method of the anode includes the steps of aluminum-magnesium intermediate alloy preparation, aluminum-magnesium intermediate alloy preparation, aluminum-lithium intermediate alloy preparation, aluminum-lithium-manganese-gallium-indium-tin-magnesium-bismuth alloy smelting, casting, cold deformation processing and heat treatment. The production method concretely comprises the following steps: preparing aluminum-magnesium intermediate alloy, aluminum-magnesium intermediate alloy and aluminum-lithium intermediate alloy with metallic pure aluminum, pure lithium, electrolytic manganese grains, magnesium grains, highly pure gallium, highly pure indium, highly pure tin and highly pure bismuth as raw materials, smelting, alloying, casting, and rolling to prepare the aluminum-lithium-manganese-gallium-indium-tin-magnesium-bismuth ...

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Номер записи: 37
22-08-2023 дата публикации

Method for extracting germanium through alkali burning, water leaching and acid burning

Номер: CN116623017A
Автор: SHI HUIXIAN, HE XIAOCAI, LI YINA, XU QINGXIN, XU NA, YUAN YE, REN JIUYANG, HE QIUGU, REN TING, XU YUAN, DIAO WEIZHI, YAN SEN, ZHANG HUI
Принадлежит:

The invention discloses a method for extracting germanium by alkali burning, water leaching and acid burning, which comprises the following steps: adding coal ash into alkali, melting and calcining, and then carrying out crushing, water leaching, washing and filtering treatment on an alkali melting material to obtain washing slag I and washing liquid I; adding acid into the washing residue I, melting and calcining, then crushing and distilling the acid burning material to obtain a distillation fraction II and residual slurry, and filtering and washing the residual slurry to obtain washing residue II and washing liquid III; and hydrolyzing the distillation fraction II, and drying to obtain GeO2. The washing liquid III and the washing liquid I are neutralized and precipitated to obtain neutralized residues III and neutralized liquid IV, the neutralized liquid IV is used as washing liquid for water leaching residue washing and residual slurry residue washing, and the neutralized residues III ...

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Номер записи: 38
22-08-2023 дата публикации

Method for distilling and extracting germanium

Номер: CN116623019A
Автор: SHI HUIXIAN, HE XIAOCAI, XU QINGXIN, XU NA, YUAN YE, REN JIUYANG, LI YINA, REN TING, HE QIUGU, XU YUAN, DIAO WEIZHI, YAN SEN, ZHANG HUI
Принадлежит:

The method comprises the steps of distillation and post-treatment, and specifically comprises the following steps: adding hydrochloric acid and an additive into coal ash, and mixing to obtain a material a; distilling the material a to obtain residual slurry b and a distillation fraction c; hydrolyzing the distillation fraction c with a diluted hydrochloric acid solution, and then drying to obtain GeO2; filtering and washing the residual slurry b to obtain washing slag e and a residual slurry mixed solution f; the residual slurry mixed liquid f is composed of distillation residual liquid and residue washing liquid; adding alkali into the washing slag e, then carrying out normal-pressure or pressurized alkaline leaching, then filtering and washing to obtain washing slag g and an alkaline leaching mixed solution h, and neutralizing the alkaline leaching mixed solution h and the residual slurry mixed solution f to obtain neutralized slag and a neutralized solution; returning the neutralized ...

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Номер записи: 39
27-07-2011 дата публикации

Process for removing impurities from solution of sodium metasilicate through pressurization

Номер: CN0101774597B
Автор: HE XIAOCAI, LI HUAIREN, LI XIAOYING, LI YONGGANG, LI YONGJIA, YANG DAJIN, ZANG JIAN, ZHAO QUN, XIAOCAI HE, HUAIREN LI, XIAOYING LI, YONGGANG LI, YONGJIA LI, DAJIN YANG, JIAN ZANG, QUN ZHAO
Принадлежит:

The invention discloses a process for removing impurities from solution of sodium metasilicate through pressurization, which comprises the following steps of: neutralizing industrial solution of sodium metasilicate for removing the impurities, pressurizing the industrial solution of sodium metasilicate at a high temperature for removing Al, Ti and Fe to obtain the solution of sodium metasilicate,and finally evaporating and crystallizing the obtained solution of sodium metasilicate to obtain high-purity sodium metasilicate. The process flow is short and industrial production is easy to realize, wherein the impurities such as aluminum, titanium, iron and the like are removed efficiently; synchronously, neutral dregs, Al-removed dregs, Ti-removed dregs and Fe-removed dregs in an impurity-removing process are returned to a roasting system; a closed circulating system is formed in the process; environmental pollution is free; and production cost is reduced.

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Номер записи: 40