23-05-2013 дата публикации
Номер: US20130126805A1
The invention relates to a method for producing alkylphosphonous acid salts, characterised in that a) a phosphinic acid source (I) is reacted with olefins (IV) in the presence of a catalyst A to obtain an alkylphosphonous acid, the salts or esters thereof (II), b) the thus obtained alkylphosphonous acid, the salts or esters thereof (II) are reacted with metal compounds of Mg, Ca, Al, Sb, Sn, Ge, Ti, Fe, Zr, Zn, Ce, Bi, Sr, Mn, Li, Na, K and/or a protoned nitrogen base to obtain the corresponding alkylphosphonous acid salts (III) of said metals and/or a nitrogen compound, wherein R, R, R, Rare the same or different and independently of each other represent H, C-C-alkyl, C-C-aryl, C-C-arylalkyl, C-C-alkylaryl and Y represents Mg, Ca, Al, Sb, Sn, Ge, Ti, Fe, Zr, Zn, Ce, Bi, Sr, Mn, Li, Na, K and/or a nitrogen compound and n represents ¼, ⅓, ½, 1 and the catalyst A is a transition metal and/or transition metal compound and/or catalyst systems which are composed of a transition metal and/or a transition metal compound and at least one ligand. 2. The process as claimed in claim 1 , wherein R claim 1 , R claim 1 , R claim 1 , Rare the same or different and are each independently H claim 1 , methyl claim 1 , ethyl claim 1 , n-propyl claim 1 , isopropyl claim 1 , n-butyl claim 1 , isobutyl claim 1 , tert-butyl claim 1 , phenyl or a combination thereof.3. The process as claimed in claim 1 , wherein the olefins (IV) are ethylene claim 1 , propylene claim 1 , n-butene claim 1 , styrene or a combination thereof.4. The process as claimed in claim 1 , wherein the phosphinic acid source (I) is phosphinic acid claim 1 , or the sodium claim 1 , potassium claim 1 , calcium claim 1 , magnesium claim 1 , aluminum claim 1 , ammonium salt claim 1 , a methyl claim 1 , ethyl claim 1 , propyl claim 1 , i-propyl claim 1 , butyl claim 1 , t-butyl claim 1 , glycol ester thereof or a combination thereof.5. The process as claimed in claim 1 , wherein the transition metals claim 1 , the transition ...
Подробнее