VERFAHREN ZUR AUFBEREITUNG WAESSRIGER KIESELFLUORWASSERSTOFFSAEUREN

Recovery of hydrofluoric acid from aqueous fluosilicic acid by treating said aqueous fluosilicic acid at a temperature of from 100 DEG to 300 DEG C. and under a pressure of from 3 to 80 atmospheres and separating resulting hydrogen fluoride containing aqueous phase and silicon tetrafluoride containi...

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Hauptverfasser:	WEISS,WOLFGANG,.DR, BECKER,WOLF,.DR
Format:	Patent
Sprache:	ger
Schlagworte:	CHEMISTRY COMPOUNDS THEREOF INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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creator	WEISS,WOLFGANG,.DR BECKER,WOLF,.DR
description	Recovery of hydrofluoric acid from aqueous fluosilicic acid by treating said aqueous fluosilicic acid at a temperature of from 100 DEG to 300 DEG C. and under a pressure of from 3 to 80 atmospheres and separating resulting hydrogen fluoride containing aqueous phase and silicon tetrafluoride containing gaseous phase and optionally hydrolyzing the silicon tetrafluoride containing gaseous phase in aqueous medium and recycling the aqueous fluosilicic acid to the process as starting material.
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BECKER,WOLF,.DR</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_DE2248149A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>ger</language><creationdate>1974</creationdate><topic>CHEMISTRY</topic><topic>COMPOUNDS THEREOF</topic><topic>INORGANIC CHEMISTRY</topic><topic>METALLURGY</topic><topic>NON-METALLIC ELEMENTS</topic><topic>TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE</topic><toplevel>online_resources</toplevel><creatorcontrib>WEISS,WOLFGANG,.DR</creatorcontrib><creatorcontrib>BECKER,WOLF,.DR</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>WEISS,WOLFGANG,.DR</au><au>BECKER,WOLF,.DR</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>VERFAHREN ZUR AUFBEREITUNG WAESSRIGER KIESELFLUORWASSERSTOFFSAEUREN</title><date>1974-04-04</date><risdate>1974</risdate><abstract>Recovery of hydrofluoric acid from aqueous fluosilicic acid by treating said aqueous fluosilicic acid at a temperature of from 100 DEG to 300 DEG C. and under a pressure of from 3 to 80 atmospheres and separating resulting hydrogen fluoride containing aqueous phase and silicon tetrafluoride containing gaseous phase and optionally hydrolyzing the silicon tetrafluoride containing gaseous phase in aqueous medium and recycling the aqueous fluosilicic acid to the process as starting material.</abstract><edition>1</edition><oa>free_for_read</oa></addata></record>
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subjects	CHEMISTRY COMPOUNDS THEREOF INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
title	VERFAHREN ZUR AUFBEREITUNG WAESSRIGER KIESELFLUORWASSERSTOFFSAEUREN
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