RU94017602A - METHOD FOR OBTAINING TUNGSTRIC ACID - Google Patents

METHOD FOR OBTAINING TUNGSTRIC ACID

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Publication number
RU94017602A
RU94017602A RU94017602/26A RU94017602A RU94017602A RU 94017602 A RU94017602 A RU 94017602A RU 94017602/26 A RU94017602/26 A RU 94017602/26A RU 94017602 A RU94017602 A RU 94017602A RU 94017602 A RU94017602 A RU 94017602A
Authority
RU
Russia
Prior art keywords
acid
tungstric
obtaining
solution
sodium tungstate
Prior art date
Application number
RU94017602/26A
Other languages
Russian (ru)
Other versions
RU2073644C1 (en
Inventor
В.Л. Бутуханов
Н.В. Лебухова
Т.Б. Ершова
Original Assignee
Институт материаловедения ДВО РАН
Filing date
Publication date
Application filed by Институт материаловедения ДВО РАН filed Critical Институт материаловедения ДВО РАН
Priority to RU94017602A priority Critical patent/RU2073644C1/en
Priority claimed from RU94017602A external-priority patent/RU2073644C1/en
Publication of RU94017602A publication Critical patent/RU94017602A/en
Application granted granted Critical
Publication of RU2073644C1 publication Critical patent/RU2073644C1/en

Links

Claims (1)

Область применения: производство вольфрамовой кислоты, преимущественно из сточных вод, содержащих вольфрамат натрия. Задача: упрощение аппаратурно-технологической схемы и снижение затрат на процесс, а также улучшение состояния окружающей среды. Сущность изобретения: предложено процесс вести электролизом раствора вольфрамата натрия при анодной плотности тока 75-85 А/м2 и поддержании концентрации раствора в пересчете на оксид вольфрама в пределах 0,05-0,2%.Scope: production of tungstic acid, mainly from wastewater containing sodium tungstate. Objective: to simplify the hardware-technological scheme and reduce the cost of the process, as well as improving the environment. The inventive proposed process to conduct the electrolysis of a solution of sodium tungstate at an anode current density of 75-85 a / m 2 and maintaining the concentration of the solution in terms of tungsten oxide in the range of 0.05-0.2%.
RU94017602A 1994-05-11 1994-05-11 Method for production of tungstic acid RU2073644C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU94017602A RU2073644C1 (en) 1994-05-11 1994-05-11 Method for production of tungstic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU94017602A RU2073644C1 (en) 1994-05-11 1994-05-11 Method for production of tungstic acid

Publications (2)

Publication Number Publication Date
RU94017602A true RU94017602A (en) 1996-02-10
RU2073644C1 RU2073644C1 (en) 1997-02-20

Family

ID=20155900

Family Applications (1)

Application Number Title Priority Date Filing Date
RU94017602A RU2073644C1 (en) 1994-05-11 1994-05-11 Method for production of tungstic acid

Country Status (1)

Country Link
RU (1) RU2073644C1 (en)

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