PROCESS FOR PREPARING LACTIC ACID
A process for the preparation of lactic acid, comprising a fermentation reaction carried out at a pH in the range of between 5.5 to 6.5, wherein the pH is adjusted to said range by introducing into the reaction mixture M(OH)2, wherein M is Ca or Mg, to obtain M-lactate-containing broth and recoverin...
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| creator | BEN-YOSEPH, ELIAHU WAJC, SAMUEL, J KOGAN, LENI |
| description | A process for the preparation of lactic acid, comprising a fermentation reaction carried out at a pH in the range of between 5.5 to 6.5, wherein the pH is adjusted to said range by introducing into the reaction mixture M(OH)2, wherein M is Ca or Mg, to obtain M-lactate-containing broth and recovering the lactic acid from said M-lactate by reacting the same with HC1, either by treating the M-lactate-containing broth with HC1 or by precipitating M-lactate from the broth, and subsequently reacting said precipitate with HC1, to yield a lactic acid solution, and extracting and/or purifying lactic acid from said solution.
L'invention porte sur un procédé de préparation de l'acide lactique comprenant une réaction de fermentation effectuée à un pH compris entre 5,5 et 6,5, maintenu dans cette plage par introduction dans le mélange réactif de M(OH)2, où M est Ca ou Mg, pour obtenir une bouillie contenant du M-lactate, puis à extraire ledit M-lactate en le faisant réagir avec du HCl, soit en traitant la bouillie contenant du M-lactate avec du HCl, soit en faisant précipiter le M-lactate de la bouillie, puis à faire réagir ledit précipité avec du HCl pour obtenir une solution d'acide lactique dont on extrait et/ou purifie l'acide lactique. |
| format | Patent |
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L'invention porte sur un procédé de préparation de l'acide lactique comprenant une réaction de fermentation effectuée à un pH compris entre 5,5 et 6,5, maintenu dans cette plage par introduction dans le mélange réactif de M(OH)2, où M est Ca ou Mg, pour obtenir une bouillie contenant du M-lactate, puis à extraire ledit M-lactate en le faisant réagir avec du HCl, soit en traitant la bouillie contenant du M-lactate avec du HCl, soit en faisant précipiter le M-lactate de la bouillie, puis à faire réagir ledit précipité avec du HCl pour obtenir une solution d'acide lactique dont on extrait et/ou purifie l'acide lactique.</description><edition>7</edition><language>eng ; fre</language><subject>BEER ; BIOCHEMISTRY ; CHEMISTRY ; ENZYMOLOGY ; FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE ; METALLURGY ; MICROBIOLOGY ; MUTATION OR GENETIC ENGINEERING ; SPIRITS ; VINEGAR ; WINE</subject><creationdate>2000</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=20000525&DB=EPODOC&CC=WO&NR=0017378A3$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20000525&DB=EPODOC&CC=WO&NR=0017378A3$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>BEN-YOSEPH, ELIAHU</creatorcontrib><creatorcontrib>WAJC, SAMUEL, J</creatorcontrib><creatorcontrib>KOGAN, LENI</creatorcontrib><title>PROCESS FOR PREPARING LACTIC ACID</title><description>A process for the preparation of lactic acid, comprising a fermentation reaction carried out at a pH in the range of between 5.5 to 6.5, wherein the pH is adjusted to said range by introducing into the reaction mixture M(OH)2, wherein M is Ca or Mg, to obtain M-lactate-containing broth and recovering the lactic acid from said M-lactate by reacting the same with HC1, either by treating the M-lactate-containing broth with HC1 or by precipitating M-lactate from the broth, and subsequently reacting said precipitate with HC1, to yield a lactic acid solution, and extracting and/or purifying lactic acid from said solution.
L'invention porte sur un procédé de préparation de l'acide lactique comprenant une réaction de fermentation effectuée à un pH compris entre 5,5 et 6,5, maintenu dans cette plage par introduction dans le mélange réactif de M(OH)2, où M est Ca ou Mg, pour obtenir une bouillie contenant du M-lactate, puis à extraire ledit M-lactate en le faisant réagir avec du HCl, soit en traitant la bouillie contenant du M-lactate avec du HCl, soit en faisant précipiter le M-lactate de la bouillie, puis à faire réagir ledit précipité avec du HCl pour obtenir une solution d'acide lactique dont on extrait et/ou purifie l'acide lactique.</description><subject>BEER</subject><subject>BIOCHEMISTRY</subject><subject>CHEMISTRY</subject><subject>ENZYMOLOGY</subject><subject>FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE</subject><subject>METALLURGY</subject><subject>MICROBIOLOGY</subject><subject>MUTATION OR GENETIC ENGINEERING</subject><subject>SPIRITS</subject><subject>VINEGAR</subject><subject>WINE</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2000</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZFAMCPJ3dg0OVnDzD1IICHINcAzy9HNX8HF0DvF0VnB09nThYWBNS8wpTuWF0twMCm6uIc4euqkF-fGpxQWJyal5qSXx4f4GBobmxuYWjsbGRCgBAMmOIbk</recordid><startdate>20000525</startdate><enddate>20000525</enddate><creator>BEN-YOSEPH, ELIAHU</creator><creator>WAJC, SAMUEL, J</creator><creator>KOGAN, LENI</creator><scope>EVB</scope></search><sort><creationdate>20000525</creationdate><title>PROCESS FOR PREPARING LACTIC ACID</title><author>BEN-YOSEPH, ELIAHU ; WAJC, SAMUEL, J ; KOGAN, LENI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_WO0017378A33</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre</language><creationdate>2000</creationdate><topic>BEER</topic><topic>BIOCHEMISTRY</topic><topic>CHEMISTRY</topic><topic>ENZYMOLOGY</topic><topic>FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE</topic><topic>METALLURGY</topic><topic>MICROBIOLOGY</topic><topic>MUTATION OR GENETIC ENGINEERING</topic><topic>SPIRITS</topic><topic>VINEGAR</topic><topic>WINE</topic><toplevel>online_resources</toplevel><creatorcontrib>BEN-YOSEPH, ELIAHU</creatorcontrib><creatorcontrib>WAJC, SAMUEL, J</creatorcontrib><creatorcontrib>KOGAN, LENI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>BEN-YOSEPH, ELIAHU</au><au>WAJC, SAMUEL, J</au><au>KOGAN, LENI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>PROCESS FOR PREPARING LACTIC ACID</title><date>2000-05-25</date><risdate>2000</risdate><abstract>A process for the preparation of lactic acid, comprising a fermentation reaction carried out at a pH in the range of between 5.5 to 6.5, wherein the pH is adjusted to said range by introducing into the reaction mixture M(OH)2, wherein M is Ca or Mg, to obtain M-lactate-containing broth and recovering the lactic acid from said M-lactate by reacting the same with HC1, either by treating the M-lactate-containing broth with HC1 or by precipitating M-lactate from the broth, and subsequently reacting said precipitate with HC1, to yield a lactic acid solution, and extracting and/or purifying lactic acid from said solution.
L'invention porte sur un procédé de préparation de l'acide lactique comprenant une réaction de fermentation effectuée à un pH compris entre 5,5 et 6,5, maintenu dans cette plage par introduction dans le mélange réactif de M(OH)2, où M est Ca ou Mg, pour obtenir une bouillie contenant du M-lactate, puis à extraire ledit M-lactate en le faisant réagir avec du HCl, soit en traitant la bouillie contenant du M-lactate avec du HCl, soit en faisant précipiter le M-lactate de la bouillie, puis à faire réagir ledit précipité avec du HCl pour obtenir une solution d'acide lactique dont on extrait et/ou purifie l'acide lactique.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| subjects | BEER BIOCHEMISTRY CHEMISTRY ENZYMOLOGY FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE METALLURGY MICROBIOLOGY MUTATION OR GENETIC ENGINEERING SPIRITS VINEGAR WINE |
| title | PROCESS FOR PREPARING LACTIC ACID |
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