Tech. for preparing ultrapure magnesia from bittern

A process for preparing superhigh-purity magnesium sand from bittern includes addition of ammonia solution as precipitant to bittern to generate precipitate of magnesium hydroxide, light burning to obtain magnesium oxide, shaping, and calcining at 1500-1600 deg.C, and features high magnesium content...

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Hauptverfasser:	ZHONGHUAI ZHOU, LIJUN XU, XINGJUN LIU
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS INORGANIC CHEMISTRY METALLURGY
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creator	ZHONGHUAI ZHOU LIJUN XU XINGJUN LIU
description	A process for preparing superhigh-purity magnesium sand from bittern includes addition of ammonia solution as precipitant to bittern to generate precipitate of magnesium hydroxide, light burning to obtain magnesium oxide, shaping, and calcining at 1500-1600 deg.C, and features high magnesium content in bittern, direct light burning of magnesium hydroxide without washing, use of the mother liquid after precipitation to prepare ammonia solution for reusing it three times, low calcine temp, high purity of product.
format	Patent
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COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS ; INORGANIC CHEMISTRY ; METALLURGY</subject><creationdate>1998</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=19980805&DB=EPODOC&CC=CN&NR=1189457A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19980805&DB=EPODOC&CC=CN&NR=1189457A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ZHONGHUAI ZHOU</creatorcontrib><creatorcontrib>LIJUN XU</creatorcontrib><creatorcontrib>XINGJUN LIU</creatorcontrib><title>Tech. for preparing ultrapure magnesia from bittern</title><description>A process for preparing superhigh-purity magnesium sand from bittern includes addition of ammonia solution as precipitant to bittern to generate precipitate of magnesium hydroxide, light burning to obtain magnesium oxide, shaping, and calcining at 1500-1600 deg.C, and features high magnesium content in bittern, direct light burning of magnesium hydroxide without washing, use of the mother liquid after precipitation to prepare ammonia solution for reusing it three times, low calcine temp, high purity of product.</description><subject>CHEMISTRY</subject><subject>COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS</subject><subject>INORGANIC CHEMISTRY</subject><subject>METALLURGY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1998</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDAOSU3O0FNIyy9SKChKLUgsysxLVyjNKSlKLCgtSlXITUzPSy3OTFRIK8rPVUjKLClJLcrjYWBNS8wpTuWF0twM8m6uIc4euqkF-fGpxQWJyal5qSXxzn6GhhaWJqbmjsaEVQAATVUrsg</recordid><startdate>19980805</startdate><enddate>19980805</enddate><creator>ZHONGHUAI ZHOU</creator><creator>LIJUN XU</creator><creator>XINGJUN LIU</creator><scope>EVB</scope></search><sort><creationdate>19980805</creationdate><title>Tech. for preparing ultrapure magnesia from bittern</title><author>ZHONGHUAI ZHOU ; LIJUN XU ; XINGJUN LIU</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN1189457A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1998</creationdate><topic>CHEMISTRY</topic><topic>COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS</topic><topic>INORGANIC CHEMISTRY</topic><topic>METALLURGY</topic><toplevel>online_resources</toplevel><creatorcontrib>ZHONGHUAI ZHOU</creatorcontrib><creatorcontrib>LIJUN XU</creatorcontrib><creatorcontrib>XINGJUN LIU</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>ZHONGHUAI ZHOU</au><au>LIJUN XU</au><au>XINGJUN LIU</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Tech. for preparing ultrapure magnesia from bittern</title><date>1998-08-05</date><risdate>1998</risdate><abstract>A process for preparing superhigh-purity magnesium sand from bittern includes addition of ammonia solution as precipitant to bittern to generate precipitate of magnesium hydroxide, light burning to obtain magnesium oxide, shaping, and calcining at 1500-1600 deg.C, and features high magnesium content in bittern, direct light burning of magnesium hydroxide without washing, use of the mother liquid after precipitation to prepare ammonia solution for reusing it three times, low calcine temp, high purity of product.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record>
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subjects	CHEMISTRY COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS INORGANIC CHEMISTRY METALLURGY
title	Tech. for preparing ultrapure magnesia from bittern
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