SU412144A1 - - Google Patents

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Publication number
SU412144A1
SU412144A1 SU1453573A SU1453573A SU412144A1 SU 412144 A1 SU412144 A1 SU 412144A1 SU 1453573 A SU1453573 A SU 1453573A SU 1453573 A SU1453573 A SU 1453573A SU 412144 A1 SU412144 A1 SU 412144A1
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SU
USSR - Soviet Union
Prior art keywords
chromium
sodium
mixture
product
alkali
Prior art date
Application number
SU1453573A
Other languages
Russian (ru)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Priority to SU1453573A priority Critical patent/SU412144A1/ru
Application granted granted Critical
Publication of SU412144A1 publication Critical patent/SU412144A1/ru

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Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00Silicon; Compounds thereof
    • C01B33/20Silicates

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)

Description

1one

Изобретение относитс  к производству натрийхромового силиката,в частности хромиатриевого тетрасиликата.This invention relates to the production of sodium chromium silicate, in particular chromium tetrasilicate.

Известен способ получени  хромнатриевого тетрасиликата путем смениени  кремнезема, окиси хрома и метасиликата натри  при следующей дозировке компонентов, %: SiO2 45;A method of producing sodium tetrasilicate is known by replacing silica, chromium oxide and sodium metasilicate at the following dosage of components,%: SiO2 45;

NaSiOs 45; Сг2Оз 10, термообработки (сплавле 1и ) смеси при МОО°С с последующей кристаллизапией продукта из расилава в течение двух суток при снижешп температуры до 700°С. NaSiOs 45; Cr2Oz 10, heat treatment (alloy 1i) of the mixture at MOO ° C, followed by crystallization of the product from rasilaw for two days at a decrease in temperature to 700 ° C.

Получают лишь 30% хромиатриевого тетрас ликата .Only 30% of chromiatric tetras liquate is obtained.

С целью интенсификации процесса и повышени  выхода продукта предлагаетс  в качестве соедине {и  натри  использовать щелочь, гидроокись хрома и гель кремниевой кислоты, прокаливание проводить при 980-1000 0 в окислительной атмосфере.In order to intensify the process and increase the yield of the product, it is proposed to use alkali, chromium hydroxide and silica gel as a compound and sodium, calcining is carried out at 980-1000 ° C in an oxidizing atmosphere.

Это позвол ет сократить врем  процесса до 60 мин (вместо 2 суток).This reduces the process time to 60 minutes (instead of 2 days).

П р и м е р. .Все исходные реагенты берут в стехиометрическом количестве дл  получени  соединени  Na2O Сг2Оз 4SiO2. Смесь, состо щую из 0,00694 кг гидроокиси хрома, 55,94% Сг2Оз и 0,0146 кг гел  кремниевой кислоты, содержащего 42% SiOj, тщательно перемешивают и ввод т коицеитрироваиный раствор едкой щелочи, содержащий 0,00203 кг NaOH. Приготовленную смесь прокаливают при 980°С, получа  готовый продукт следующегоPRI me R. All initial reagents are taken in stoichiometric amount to obtain the compound Na2O Cr2O3 4SiO2. A mixture consisting of 0.00694 kg of chromium hydroxide, 55.94% Cr2Oz, and 0.0166 kg of silica gel containing 42% SiOj, is thoroughly mixed and a co-alkaline caustic alkali solution containing 0.00203 kg of NaOH is introduced. The mixture is calcined at 980 ° C to obtain the finished product of the following

состава, %: Сг2Оз 33,3; Si02 52,9; Na20 i3,8.composition,%: Cr2Oz 33.3; Si02 52.9; Na20 i3.8.

В таблице приведены межплоскостиые рассто ни .The table shows the interplanar distances.

АналогичЕ ый результат получают в случае использоваш  концентрированного раствора карбоната натри , содержащего 0,00204 кг щелочи в пересчете на NaOH.A similar result is obtained in the case of using a concentrated solution of sodium carbonate containing 0.00204 kg of alkali in terms of NaOH.

Предмет изобретени Subject invention

Способ получени  натрийхромового силиката путем смешени  соединений натри , хро .ма и кремни  и прокаливани  смеси, отличающийс  тем, что, с целью интенсификации процесса и повышени  выхода продукта, щелочь , гидроокись хрома и гель кремниевой кислоты прокаливают при 980-1000°С в окислительной атмосфере.A method of producing sodium chromium silicate by mixing sodium, chromium and silicon compounds and calcining the mixture, characterized in that, in order to intensify the process and increase the yield of the product, alkali, chromium hydroxide and silicic acid gel are calcined at 980-1000 ° C in an oxidizing atmosphere .

SU1453573A 1970-07-06 1970-07-06 SU412144A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1453573A SU412144A1 (en) 1970-07-06 1970-07-06

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1453573A SU412144A1 (en) 1970-07-06 1970-07-06

Publications (1)

Publication Number Publication Date
SU412144A1 true SU412144A1 (en) 1974-01-25

Family

ID=20454544

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1453573A SU412144A1 (en) 1970-07-06 1970-07-06

Country Status (1)

Country Link
SU (1) SU412144A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0014408A2 (en) * 1979-02-08 1980-08-20 Bayer Ag Process for preparing "kosmochlor" pigments (sodium chromium double silicate)and use thereof
EP0057399A1 (en) * 1981-02-04 1982-08-11 Bayer Ag Process for the production of Cr-containing clinopyroxene phases and their application

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0014408A2 (en) * 1979-02-08 1980-08-20 Bayer Ag Process for preparing "kosmochlor" pigments (sodium chromium double silicate)and use thereof
EP0014408A3 (en) * 1979-02-08 1980-09-17 Bayer Ag Process for preparing "kosmochlor" pigments (sodium chromium double silicate)and use thereof
EP0057399A1 (en) * 1981-02-04 1982-08-11 Bayer Ag Process for the production of Cr-containing clinopyroxene phases and their application

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