[EN] USE OF SOLUBLE METAL SALTS IN METATHESIS REACTIONS<br/>[FR] UTILISATION DE SELS MÉTALLIQUES SOLUBLES DANS DES RÉACTIONS DE MÉTATHÈSE
申请人:MATERIA INC
公开号:WO2014152309A1
公开(公告)日:2014-09-25
The present invention describes the use of soluble metal salts to reduce impurities and metathesis catalysts poisons from olefinic feedstocks to improve olefin metathesis efficiency. The soluble metal salts were added to the olefinic feedstocks to prevent peroxides and catalyst poisons from inhibiting the metathesis catalyst. The soluble metal salts remain in the olefinic feedstocks and are used without further purification in the olefin metathesis reactions. The key to this invention is the soluble metal salt compounds do not inhibit the olefin metathesis catalysts but unexpectedly increase olefin metathesis catalyst efficiency while prior art heterogeneous metal complexes sequester the olefin metathesis catalyst, preventing olefin metathesis.
Magnesium values are selectively extracted from aqueous solutions thereof also containing calcium using quaternary ammonium salts of selected hydrogen ion exchange reagents. Magnesium is stripped from the resulting organic phase with acids.
5-Halogen-substituted 7 alkyl and 7-alkenyl 8-hydroxyquinolines
申请人:General Mills Chemicals, Inc.
公开号:US04065455A1
公开(公告)日:1977-12-27
Compounds of the structure ##STR1## where X is Cl or Br, R is a branched chain alkyl or alkenylradical containing about 8 to 20 carbon atoms and R.sub.1, R.sub.2 and R.sub.3 are hydrogen or alkyl groups of 1 to 4 carbon atoms. The new compounds find use in extraction of metals.
What is described herein are conditioning/styling tetrapolymers of vinyl caprolactam (VCL), vinylpyrrolidone (VP), dimethylaminopropyl methacrylamide (DMAPMA) and C
8
-C
24
alkyl quaternized dimethylaminopropyl (meth)acrylamide or methacrylic acid quaternized monomers (QDMAPMA), in a defined compositional range. Hair and skin care compositions which include these tetrapolymers exhibit advantageous low tackiness and high humidity resistance.
What is described herein are conditioning/styling terpolymers of vinylpyrrolidone (VP), dimethylaminopropyl methacrylamide (DMAPMA) and C9-C24 alkyl dimethylaminopropyl methacrylic acid quaternized monomers (QDMAPMA), in a defined compositional range. Hair and skin care compositions which include these terpolymers exhibit advantageous low tackiness and high humidity resistance.