PROCESS OF CLEANING METAL SURFACES
In a process of cleaning metal surfaces with aqueous alkaline cleaning solutions, which contain sili- cates and surfactants and are recycled after ultrafil- tration, a solution is employed which contains silicate only as a sodium silicate and/or potassium silicate of the general formula Na2 0.2SiO2....
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creator | WITTEL, KLAUS BLUEMLHUBER, GEORG |
description | In a process of cleaning metal surfaces with aqueous alkaline cleaning solutions, which contain sili- cates and surfactants and are recycled after ultrafil- tration, a solution is employed which contains silicate only as a sodium silicate and/or potassium silicate of the general formula Na2 0.2SiO2.xH2O and/or K2 0.2SiO2.xH2O. The cleaning solution is preferably adjusted to a pH value between 7 and 12 and to a concentration (ex- pressed as SiO2) of 0.1 to 20, particularly 0.5 to 10 g, silicate per liter. |
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The cleaning solution is preferably adjusted to a pH value between 7 and 12 and to a concentration (ex- pressed as SiO2) of 0.1 to 20, particularly 0.5 to 10 g, silicate per liter.</description><edition>5</edition><language>eng ; fre</language><subject>CHEMICAL SURFACE TREATMENT ; CHEMISTRY ; CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS ; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL ; COATING MATERIAL WITH METALLIC MATERIAL ; COATING METALLIC MATERIAL ; DIFFUSION TREATMENT OF METALLIC MATERIAL ; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL ; METALLURGY</subject><creationdate>2001</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20011211&DB=EPODOC&CC=CA&NR=2079628C$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20011211&DB=EPODOC&CC=CA&NR=2079628C$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>WITTEL, KLAUS</creatorcontrib><creatorcontrib>BLUEMLHUBER, GEORG</creatorcontrib><title>PROCESS OF CLEANING METAL SURFACES</title><description>In a process of cleaning metal surfaces with aqueous alkaline cleaning solutions, which contain sili- cates and surfactants and are recycled after ultrafil- tration, a solution is employed which contains silicate only as a sodium silicate and/or potassium silicate of the general formula Na2 0.2SiO2.xH2O and/or K2 0.2SiO2.xH2O. 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subjects | CHEMICAL SURFACE TREATMENT CHEMISTRY CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY |
title | PROCESS OF CLEANING METAL SURFACES |
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