COMPOSITION BASED ON COMPLEX COBALT-BORON ESTERS AND PRODUCTION METHOD

Complex cobalto-borate esters are prepd. from 6+0.5% mono-cobalt-borate ester, 2.5+0.5% di:cobalto-borate ester, 30+2% tri:cobalto-borate ester, 5+0.5% tri-n-butyl-ortho-borate, 30+2% n-butyl-alkyl-carboxylate, 25+2% cobalt di:carboxylate. Component wt. ratios fall between following limits: monoeste...

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Bibliographic Details
Main Authors VASILESCU ILEANA, MILU CLAUDIA, COMANICI RODICA, IONESCU PAULIAN, MIHIS IOAN, STANCIU ELENA, STANCIU IULIAN
Format Patent
LanguageEnglish
Published 12.09.1991
Edition4
Subjects
ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Summary:Complex cobalto-borate esters are prepd. from 6+0.5% mono-cobalt-borate ester, 2.5+0.5% di:cobalto-borate ester, 30+2% tri:cobalto-borate ester, 5+0.5% tri-n-butyl-ortho-borate, 30+2% n-butyl-alkyl-carboxylate, 25+2% cobalt di:carboxylate. Component wt. ratios fall between following limits: monoester;diester:triester= 10:5:85-20:0:80. In a preliminary prepn. stage cobalt-dicarboxylate is obtd. by ion exchange reaction between sodium salts of previously mentioned mono-carboxylic acids and cobalt chloride or nitrate, observing well established reaction conditions During the next phase, molten cobalt-di:carboxylate is transesterified with tri:n-butyl-borate at 150-180 deg.C with formation of a complex ester mixt.
Bibliography:Application Number: RO19880137358