RU2217538C1 - Method for preparing polysulfide lye (variants) - Google Patents

Method for preparing polysulfide lye (variants) Download PDF

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Publication number
RU2217538C1
RU2217538C1 RU2002116856A RU2002116856A RU2217538C1 RU 2217538 C1 RU2217538 C1 RU 2217538C1 RU 2002116856 A RU2002116856 A RU 2002116856A RU 2002116856 A RU2002116856 A RU 2002116856A RU 2217538 C1 RU2217538 C1 RU 2217538C1
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Russia
Prior art keywords
polysulfide
preparing
lye
active component
catalyst
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RU2002116856A
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Russian (ru)
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RU2002116856A (en
Inventor
Р.П. Кочеткова
А.Ю. Кочетков
Н.А. Коваленко
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Кочетков Алексей Юрьевич
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Priority to RU2002116856A priority Critical patent/RU2217538C1/en
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Publication of RU2217538C1 publication Critical patent/RU2217538C1/en
Publication of RU2002116856A publication Critical patent/RU2002116856A/en

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Abstract

FIELD: chemical technology. SUBSTANCE: invention relates to methods for preparing polysulfide lye. Methods involve treatment of white sulfate lye with air in the presence of heterogeneous catalyst. Catalyst comprises active component oxides and/or hydroxides, and/or hydrosulfides, and/or sulfides of metals with transient valence, modifying addition - organic bases and/or heteropolyacids on polyethylene or polypropylene used as a polymeric carrier. By other variant method involves using also one or some compounds with transient valence as an active component, fusing agent and carbon-containing material as a modifying agent on clay as a carrier. Invention provides the enhancement of economy of process and simplified equipment shaping. Invention can be used in paper and pulp industry for preparing boiling solutions containing sodium polysulfide used for carrying out polysulfide boiling cellulose. EFFECT: improved preparing method. 2 cl, 3 tbl, 6 ex

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Claims (2)

1. Способ получения полисульфидного щелока, включающий обработку белого сульфатного щелока воздухом в присутствии гетерогенного катализатора, отличающийся тем, что катализатор содержит в качестве активного компонента - оксиды и/или гидрооксиды, и/или гидросульфиды, и/или сульфиды металлов переменной валентности, и дополнительно модифицирующую добавку, в качестве которой используют органические основания и/или гетерополикислоты, на полимерном носителе-полиэтилене или полипропилене, при следующем содержании компонентов катализатора, массовая доля в %:1. A method of producing polysulfide liquor, comprising treating white sulfate liquor with air in the presence of a heterogeneous catalyst, characterized in that the catalyst contains oxides and / or hydroxides and / or hydrosulfides and / or sulfides of metals of variable valence as an active component, and further a modifying additive, which is used as an organic base and / or heteropoly acids, on a polymer carrier, polyethylene or polypropylene, with the following content of catalyst components, asses share in%: Активный компонент 15 - 50Active ingredient 15 - 50 Модифицирующая добавка 0,5 - 20Modifying additive 0.5 - 20 Носитель ОстальноеMedia Else 2. Способ получения полисульфидного щелока, включающий обработку белого сульфатного щелока воздухом в присутствии гетерогенного катализатора, отличающийся тем, что катализатор содержит в качестве активного компонента одно или несколько соединений металлов переменной валентности, дополнительно плавень и модифицирующую добавку - углеродсодержащий материал, на носителе - глине, при следующем содержании компонентов катализатора, массовая доля в %:2. A method of producing polysulfide liquor, comprising treating white sulfate liquor with air in the presence of a heterogeneous catalyst, characterized in that the catalyst contains one or more metal compounds of variable valency as an active component, additionally fusion and a modifying additive - carbon-containing material, on the carrier - clay, at the following content of catalyst components, mass fraction in%: Активный компонент 15 - 50Active ingredient 15 - 50 Модифицирующая добавка 0,5 - 20Modifying additive 0.5 - 20 Плавень 10 - 50Fluff 10 - 50 Носитель ОстальноеMedia Else
RU2002116856A 2002-06-21 2002-06-21 Method for preparing polysulfide lye (variants) RU2217538C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2002116856A RU2217538C1 (en) 2002-06-21 2002-06-21 Method for preparing polysulfide lye (variants)

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Application Number Priority Date Filing Date Title
RU2002116856A RU2217538C1 (en) 2002-06-21 2002-06-21 Method for preparing polysulfide lye (variants)

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RU2217538C1 true RU2217538C1 (en) 2003-11-27
RU2002116856A RU2002116856A (en) 2004-03-27

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RU2002116856A (en) 2004-03-27

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