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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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Применить Всего найдено 4. Отображено 4.
28-05-2008 дата публикации

Method for removing semimetal antimony ion from waste water

Номер: CN0101186376A
Автор: LONG JIAJIE, LU TONGQING, TANG RENCHENG, EICHO YUKIO, JIAJIE LONG, TONGQING LU, RENCHENG TANG, YUKIO EICHO
Принадлежит:

The invention discloses an electrochemical deposition method which is used for eliminating semimetal antimony ions from waste water. By adopting a three-electrode or two-electrode system and using a titanium mesh as working electrode, semimetal antimony ions in the solution are precipitated in the form of semimetals or the oxide thereof in the working electrode by constant current electrochemical reduction deposition, so as to effectively eliminate the toxic antimony ions from the waste water with weak acid and low content, etc.; meanwhile, the electrodeposition of trivalent, quintavalent and total antimony can be realized through the adjustment of the acidity of mediums. The titanium which is inert to the reduction of hydrogen ion is adopted as the electrode material, thus improving the effective utilization of the electrode; meanwhile the abundant electrons in the titanium electrode which is a green chemical reagent leading the semimetal antimony ions in the solution to be precipitated ...

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Номер записи: 1
16-03-2011 дата публикации

Method for removing semimetal antimony ion from waste water

Номер: CN0101186376B
Автор: LONG JIAJIE, LU TONGQING, EICHO YUKIO, TANG RENCHENG, JIAJIE LONG, TONGQING LU, YUKIO EICHO, RENCHENG TANG
Принадлежит:

The invention discloses an electrochemical deposition method which is used for eliminating semimetal antimony ions from waste water. By adopting a three-electrode or two-electrode system and using a titanium mesh as working electrode, semimetal antimony ions in the solution are precipitated in the form of semimetals or the oxide thereof in the working electrode by constant current electrochemicalreduction deposition, so as to effectively eliminate the toxic antimony ions from the waste water with weak acid and low content, etc.; meanwhile, the electrodeposition of trivalent, quintavalent and total antimony can be realized through the adjustment of the acidity of mediums. The titanium which is inert to the reduction of hydrogen ion is adopted as the electrode material, thus improving theeffective utilization of the electrode; meanwhile the abundant electrons in the titanium electrode which is a green chemical reagent leading the semimetal antimony ions in the solution to be precipitated ...

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Номер записи: 2
24-11-2010 дата публикации

Selenium content detection method

Номер: CN0101149357B
Автор: LONG JIAJIE, EICHO YUKIO, LU TONGQING, JIAJIE LONG, YUKIO EICHO, TONGQING LU
Принадлежит:

The invention discloses an electrochemical detection method for the selenium content. It uses the thermal cracking graphite as the electrode host; the bismuth formed by the BiCl3, Se(IV) in situ enrichment is as the working electrode, which forms a kind of compound with the enriching selenium. In the scanning electric potential of -1000mV--1200mV on cathode, it gets a sensitive catalyzing hydrogen wave detected by the Osteryang square wave cathode stripping volt-ampere method to detect the Se(IV). Because the Bi has no toxicity, the invention has avoided the traditional hydrargyrum electrode pollution. Also it has simple process, high sensitivity, low cost. It can analyze the trace selenium and its valency in natural water. So it has widely application future in industrial and agricultural production, environment protection, medical treatment and science study.

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Номер записи: 3
24-02-2010 дата публикации

Electrochemical measuring method of ferric iron content

Номер: CN0101655476A
Автор: YUNHUI XU, CHEN HUANG, YUKIO EICHO, XU YUNHUI, HUANG CHEN, EICHO YUKIO
Принадлежит:

The invention relates to an electrochemical measuring method of ferric iron content, and an electrochemical three-electrode testing system and a constant-current anode stripping differential timing potentiometric method are adopted to carry out the measurement. The electrochemical measuring method is characterized by comprising the following steps: reducing ferric iron by hydroxylamine hydrochloride, extracting chelate Fe-[(C12H8N2)3]<2+> formed by the chelation of 1,10-orthophenanthrolene into propylene carbonate organic solvent and enriching on the surface of a working electrode, obtaining adT/dE-E differential curve by recording a function of the change of an electric potential E on the working electrode along with the testing time T and carrying out the differential processing on thefunction, and calculating the ferric iron content according to the height dT/dE (sV<-1>) of an iron response peak that is generated when an anode stripping electric potential on the differential curveis ...

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Номер записи: 4