Odstraňování hořčíku z chromitého kalu zbylého po enzymové hydrolýse chromočiněných postružin

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Removal of MgO from the chrome cake produced by enzymatic hydrolysis of chrome shavings

Popis výsledku v původním jazyce

The tanning industry processes raw hides and converts them into leather, producing considerable quantities of solid and liquid by-products. The solid tanned by-products contain chromium and by-product liquors contain residual chromium. In order to prevent loss of protein material and chrome compounds, technologies were developed for recycling liquid and solid by-products. Recycling solid by-products is being successfully realized through enzymatic hydrolysis. The chrome cake remains an issue as it contains MgO which was used as a promoter in hydrolysis of chrome-tanned solid by-products. High content of MgO in the chrome cake complicates its further use. This presents work addresses the possibility of isolating magnesium, present as hydroxide, from thechrome cake using by-product (spent) tanning liquor. Results showed that it is possible to achieve magnesium removal efficiency up to 70 %.

Název v anglickém jazyce

Removal of MgO from the chrome cake produced by enzymatic hydrolysis of chrome shavings

Popis výsledku anglicky

The tanning industry processes raw hides and converts them into leather, producing considerable quantities of solid and liquid by-products. The solid tanned by-products contain chromium and by-product liquors contain residual chromium. In order to prevent loss of protein material and chrome compounds, technologies were developed for recycling liquid and solid by-products. Recycling solid by-products is being successfully realized through enzymatic hydrolysis. The chrome cake remains an issue as it contains MgO which was used as a promoter in hydrolysis of chrome-tanned solid by-products. High content of MgO in the chrome cake complicates its further use. This presents work addresses the possibility of isolating magnesium, present as hydroxide, from thechrome cake using by-product (spent) tanning liquor. Results showed that it is possible to achieve magnesium removal efficiency up to 70 %.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DM - Tuhý odpad a jeho kontrola, recyklace

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2008

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Asian Journal of Chemistry

ISSN

0970-7077

e-ISSN

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Svazek periodika

20

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

IN - Indická republika

Počet stran výsledku

14

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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