Ověření účinnosti chromité břečky připravené z chromitého koláče po enzymové hydrolyse postružin k činění vepřovicové holiny

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

Verification of efficiency of chrome liquor prepared from the chrome cake after enzyme hydrolysis of shavings for tanning of white-hide from pigskin

Popis výsledku v původním jazyce

Chrome cake was used to prepare tanning liquors according to the following procedure: The charge of potassium dichromate was tipped into the high beaker; water was added and after dissolution of dichromate sulphuric acid was added. The content was continuously mixed with shaft blender and brought to boiling point. Chrome cake was added step by step by small portions. After the whole amount of the cake was added the reaction mixture was mixed at boiling for another 30 minutes. Tanning liquor thus prepared was then analysed: Cr2O3 = 149.8 g/l, basicity = 39.7 %Sch, density = 40 oBé and pH = 3.1. To verify prepared tanning liquor a pieces of white-hide from pigskins were detracted from pickling liquor from TAREX tanneries in Otrokovice (The Czech Republic). Tanning experiments proved that chrome cake may replace chromium and reducing agent at preparation of tanning liquors.

Název v anglickém jazyce

Verification of efficiency of chrome liquor prepared from the chrome cake after enzyme hydrolysis of shavings for tanning of white-hide from pigskin

Popis výsledku anglicky

Chrome cake was used to prepare tanning liquors according to the following procedure: The charge of potassium dichromate was tipped into the high beaker; water was added and after dissolution of dichromate sulphuric acid was added. The content was continuously mixed with shaft blender and brought to boiling point. Chrome cake was added step by step by small portions. After the whole amount of the cake was added the reaction mixture was mixed at boiling for another 30 minutes. Tanning liquor thus prepared was then analysed: Cr2O3 = 149.8 g/l, basicity = 39.7 %Sch, density = 40 oBé and pH = 3.1. To verify prepared tanning liquor a pieces of white-hide from pigskins were detracted from pickling liquor from TAREX tanneries in Otrokovice (The Czech Republic). Tanning experiments proved that chrome cake may replace chromium and reducing agent at preparation of tanning liquors.

Druh

D - Stať ve sborníku

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2006

Kód důvěrnosti údajů

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

Název statě ve sborníku

CHISA 2006 - Summaries 4 (System Engineering 4)

ISBN

80-86059-45-6

ISSN

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e-ISSN

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Počet stran výsledku

2

Strana od-do

1315-1316

Název nakladatele

Process Engineering Publisher

Místo vydání

Praha

Místo konání akce

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Datum konání akce

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Typ akce podle státní příslušnosti

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Kód UT WoS článku

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