METHOD OF MAKING CEFQUINOME PARTICLES

Disclosed is a process for the production of particles of a cefquinome acid addition salt, preferably cefquinome sulfate particles, by precipitation of cefquinome acid addition salt, preferably the sulfate, from a cefquinome betaine solution, wherein acid, preferably sulfuric acid, is added to the b...

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Hauptverfasser:	NIEDERMANN, HANS, PETER, BOTHE, HEIKO
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMISTRY HETEROCYCLIC COMPOUNDS HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE METALLURGY ORGANIC CHEMISTRY PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
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creator	NIEDERMANN, HANS, PETER BOTHE, HEIKO
description	Disclosed is a process for the production of particles of a cefquinome acid addition salt, preferably cefquinome sulfate particles, by precipitation of cefquinome acid addition salt, preferably the sulfate, from a cefquinome betaine solution, wherein acid, preferably sulfuric acid, is added to the betaine solution. According to the invention the acid, preferably sulfuric acid, is added quickly in a single shot, in a molar excess of 40% to less than 100%. As a result, particles are formed that comprise agglomerates of microscale primary crystalline particles. This enables providing particles of cefquinome acid addition salt, preferably cefquinome sulfate, in particle sizes commensurate with micronized material, but with improved stability.
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According to the invention the acid, preferably sulfuric acid, is added quickly in a single shot, in a molar excess of 40% to less than 100%. As a result, particles are formed that comprise agglomerates of microscale primary crystalline particles. This enables providing particles of cefquinome acid addition salt, preferably cefquinome sulfate, in particle sizes commensurate with micronized material, but with improved stability.</description><language>eng ; fre ; ger</language><subject>CHEMISTRY ; HETEROCYCLIC COMPOUNDS ; HUMAN NECESSITIES ; HYGIENE ; MEDICAL OR VETERINARY SCIENCE ; METALLURGY ; ORGANIC CHEMISTRY ; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES</subject><creationdate>2013</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=20130821&DB=EPODOC&CC=EP&NR=2456775B1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20130821&DB=EPODOC&CC=EP&NR=2456775B1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>NIEDERMANN, HANS, PETER</creatorcontrib><creatorcontrib>BOTHE, HEIKO</creatorcontrib><title>METHOD OF MAKING CEFQUINOME PARTICLES</title><description>Disclosed is a process for the production of particles of a cefquinome acid addition salt, preferably cefquinome sulfate particles, by precipitation of cefquinome acid addition salt, preferably the sulfate, from a cefquinome betaine solution, wherein acid, preferably sulfuric acid, is added to the betaine solution. According to the invention the acid, preferably sulfuric acid, is added quickly in a single shot, in a molar excess of 40% to less than 100%. As a result, particles are formed that comprise agglomerates of microscale primary crystalline particles. 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According to the invention the acid, preferably sulfuric acid, is added quickly in a single shot, in a molar excess of 40% to less than 100%. As a result, particles are formed that comprise agglomerates of microscale primary crystalline particles. This enables providing particles of cefquinome acid addition salt, preferably cefquinome sulfate, in particle sizes commensurate with micronized material, but with improved stability.</abstract><oa>free_for_read</oa></addata></record>
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subjects	CHEMISTRY HETEROCYCLIC COMPOUNDS HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE METALLURGY ORGANIC CHEMISTRY PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
title	METHOD OF MAKING CEFQUINOME PARTICLES
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