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| Number | Title | Issue Date |
| 8440855 | Process for the production of acetic acid ethylene and vinyl acetate monomer An integrated process for the production of acetic acid, ethylene and vinyl acetate monomer comprising the steps of: (a) evaporating at least part of an ethanol feed stock (b) producing in a first reaction zone a first product stream compri... | 05/14/2013 |
| RE41341 | Ester synthesis This invention relates to a process for the production of lower aliphatic esters by reacting a lower olefin with a saturated lower aliphatic mono-carboxylic acid in the vapor phase in the presence of a heteropolyacid catalyst characterized in that an amount of water... | 05/18/2010 |
| 7446221 | Process for making tricyclodecenyl esters A practical, economical process for making tricyclodecenyl esters is disclosed. After reacting a lower carboxylic acid and a dicyclopentadiene in the presence of triflic acid to form the ester, the reaction mixture is distilled in the presence of a base to isolate a... | 11/04/2008 |
| 7390918 | Integrated process for the manufacture of alkenyl carboxylates An integrated process for the production of an alkenyl carboxylate, such as vinyl acetate which process comprises the steps of (a) contacting in an oxidation reaction zone a C2 to C4 alkane, such as ethane, a molecular oxygen-containing gas, op... | 06/24/2008 |
| 7153996 | Preparation of levulinic acid esters and formic acid esters from biomass and olefins This invention relates to a process for producing a mixture of levulinic acid esters and formic acid esters from biomass and olefins, and the composition prepared therefrom. This invention also relates to usage of the mixture of these esters as fuel and as fuel addi... | 12/26/2006 |
| 7125817 | Combined cracking and selective hydrogen combustion for catalytic cracking A catalyst system and process for combined cracking and selective hydrogen combustion of hydrocarbons are disclosed. The catalyst comprises (1) at least one solid acid component, (2) at least one metal-based component comprised of one or more elements from Group 3 a... | 10/24/2006 |
| 7122493 | Combined cracking and selective hydrogen combustion for catalytic cracking A catalyst system and process for combined cracking and selective hydrogen combustion of hydrocarbons are disclosed. The catalyst comprises: (1) at least one solid acid component, (2) at least one metal-based compo... | 10/17/2006 |
| 7122492 | Combined cracking and selective hydrogen combustion for catalytic cracking A catalyst system and process for combined cracking and selective hydrogen combustion of hydrocarbons are disclosed. The catalyst comprises (1) at least one solid acid component, (2) at least one metal-based component comprised of one or more elements from Groups 1 ... | 10/17/2006 |
| 7122495 | Combined cracking and selective hydrogen combustion for catalytic cracking A catalyst system and process for combined cracking and selective hydrogen combustion of hydrocarbons are disclosed. The catalyst system contains at least one solid acid component and at least one metal-based component which consists of (a) oxygen and/or sulfur and ... | 10/17/2006 |
| 7122494 | Combined cracking and selective hydrogen combustion for catalytic cracking A catalyst system and process for combined cracking and selective hydrogen combustion of hydrocarbons are disclosed. The catalyst comprises (1) at least one solid acid component, (2) at least one metal-based component comprised of two or more elements from Groups 4â... | 10/17/2006 |
| 6998026 | Method for producing tertiary C-C-alkyl esters of (meth)acrylic acid A tert-C4–C8-alkyl (meth)acrylate is prepared by reacting (meth)acrylic acid with an olefin of the formula where R1 and R2, which may be i... | 02/14/2006 |
| RE38864 | Process for making n-butyl esters from butadiene Process for making a butyl ester from butadiene, comprising (a) reacting butadiene with a saturated aliphatic monocarboxylic acid to form a mixture of n-butenyl and secondary butenyl esters, (b) separating the n-butenyl ester from the secondary butenyl ester, and (c... | 11/01/2005 |
| 6949671 | Process for the production of acetic acid C4-esters Process for treating a mixed C4 stream comprising iso-butene and 1,3-butadiene by (a) reacting the stream with acetic acid in an addition reactor, (b) withdrawing product comprising iso-butene acetate, sec-butenyl acetate, n-butenyl acetate and t-butyl ac... | 09/27/2005 |
| 6946570 | Ester synthesis This invention relates to a process for the production of lower aliphatic esters by reacting a lower olefin with a saturated lower aliphatic mono-carboxylic acid in the vapor phase in the presence of a heteropolyacid catalyst in a plurality of reactors set up in ser... | 09/20/2005 |
| 6849759 | Process for producing esters A process for producing an ester comprising reacting a carboxylic acid and ethylene in the presence of an acid catalyst in a vapor phase, wherein the concentration of olefin having 3 or more carbon atoms in the starting materials is controlled to 10,000 ppm or less ... | 02/01/2005 |
| 6825149 | Highly selective shell impregnated catalyst of improved space time yield for production of vinyl acetate A shell impregnated catalyst of Pd-Au produced on a silica support to have a Pd loading of 1.8 g/L of catalyst to about 7.2 g/L and a Au to Pd weight ratio of 0.3 to 2.0 by impregnating the support with aqueous solutions of palladium and gold salts or acids and ther... | 11/30/2004 |
| 6809218 | Sol-gel derived porous microcomposite of perfluorinated ion-exchange polymer and metal oxide Porous microcomposites have been prepared from perfluorinated ion-exchange polymer and metal oxides such as silica using the sol-gel process. Such microcomposites possess high surface area and exhibit extremely high catalytic activity. ... | 10/26/2004 |
| 6794535 | Ester synthesis Process for the production of lower aliphatic esters comprising reacting a lower olefin with a saturated lower aliphatic monocarboxylic acid in the vapor phase in the presence of a heteropolyacid catalyst. The reaction is carried out in a plurality of reactors set u... | 09/21/2004 |
| 6770791 | Production of olefin dimers and oligomers Disclosed is an olefin containing stream from an oxygenate to olefin process, and a process for making olefin dimer and oligomer product from the olefin containing stream using a nickel based oligomerization catalyst. The dimer/oligomer product is optionally convert... | 08/03/2004 |
| 6696597 | Metathesis syntheses of pheromones or their components The present invention relates to metathesis syntheses for insect sex-attractant pheromones or their components, such as E-5-decenyl acetate, the major component of the Peach Twig Borer pheromone; (5R,6S)-6-acetoxy-5-hexadecanolide, the mosquito ovipositio... | 02/24/2004 |
| 6696598 | Process for producing lower aliphatic carboxylic acid ester A process for producing a lower aliphatic carboxylic acid ester by a gas phase esterification reaction starting from a lower aliphatic carboxylic acid and a lower olefin, comprising adding a lower alcohol corresponding to a hydrate of a lower olefin to th... | 02/24/2004 |
| 6624325 | Catalyst for use in producing lower fatty acid ester, process for producing the catalyst, and process for producing lower fatty acid ester using the catalyst A catalyst for producing lower fatty acid esters through esterification of a lower aliphatic carboxylic acid with a lower olefin, comprising a heteropoly acid or a, salt thereof held on a carrier, and having a specific surface area of the catalyst, as mea... | 09/23/2003 |
| 6465683 | Process for making n-butyl esters from butadiene Process for making a butyl ester from butadiene, comprising (a) reacting butadiene with a saturated aliphatic monocarboxylic acid to form a mixture of n-butenyl and secondary butenyl esters, (b) separating the n-butenyl ester from the secondary butenyl es... | 10/15/2002 |
| 6420308 | Highly selective shell impregnated catalyst of improved space time yield for production of vinyl acetate A shell impregnated catalyst of Pd--Au produced on a silica support to have a Pd loading of 1.8 g/L of catalyst to about 7.2 g/L and a Au to Pd weight ratio of 0.3 to 2.0 by impregnating the support with aqueous solutions of palladium and gold salts or ac... | 07/16/2002 |
| 6333430 | Process for preparing tert-alkyl ester from carboxylic acid A process for preparing a tert-alkyl carboxylic acid ester represented by the formula (III): ##STR1## wherein R1 is an organic group; and each of R2 and R3 is independently an alkyl group having 1 to 4 carbon atoms, compri... | 12/25/2001 |
| 6242640 | Tertiary alkyl ester preparation using large-pore zeolite catalysts A tertiary olefin such as isobutylene is reacted with a lower unsaturated carboxylic acid to produce the ester in the presence of a large pore zeolite catalyst such as Zeolite Y, Zeolite beta or Zeolite X, the reaction can be illustrated by the equation ... | 06/05/2001 |
| 6194602 | Tertiary alkyl ester preparation A tertiary olefin such as isobutylene is reacted with a lower carboxylic acid to produce the ester in the presence of a large pore zeolite catalyst such as Zeolite Y, Zeolite beta or Zeolite X.... | 02/27/2001 |
| 6187949 | Synthesis of lower aliphatic esters using heterpolyacids with an aldehyde-free product stream Process for the production of lower aliphatic esters by bringing together in an addition reaction a lower olefin and a saturated, lower aliphatic, mono-carboxylic acid in the vapor phase into contact with a heterpolyacid catalyst. The reactant olefin and ... | 02/13/2001 |
| 6090986 | Organic compounds and processes for their manufacture Esters of branched C9 alcohols suitable as plasticizers are formed by esterification of a C9 alcohol produced by the aldol condensation from propanal and a C6 aldehyde and hydrogenation, the propanal optionally having been... | 07/18/2000 |
| 6049011 | Hydroformylation process A dilute ethylene stream, e.g., one produced by steam cracking, is oxonated to yield propanal, without the need to separate other lower hydrocarbons.... | 04/11/2000 |
| 6018076 | Ester preparation An olefin such as isobutylene is reacted with a carboxylic acid to produce the ester in the presence of an alkanol modifying agent effective to suppress olefin polymerization, at least part of the modifying agent being formed in situ by reaction of the ol... | 01/25/2000 |
| 5994578 | Ester preparation An olefin such as isobutylene is reacted with a carboxylic acid to produce the ester in the presence of a modifying agent effective to suppress olefin polymerization, the feed to the reaction containing not more than 0.7 mols water per mol of olefin.... | 11/30/1999 |
| 5973193 | Ethyl acetate synthesis from ethylene and acetic acid using solid acid catalysts A method of producing ethyl acetate by reacting acetic acid with ethylene in the presence of a solid acidic catalyst comprising a zeolite selected from the group consisting of MCM-22, MCM-49, MCM-56, ZSM-5 and zeolite-Beta.... | 10/26/1999 |
| 5866714 | Ester preparation An olefin such as isobutylene is reacted with a carboxylic acid to produce the ester in the presence of an alkanol modifying agent effective to suppress olefin polymerization, at least part of the modifying agent being formed in situ by reaction of the ol... | 02/02/1999 |
| 5861530 | Ester synthesis This invention relates to a process for the production of lower aliphatic esters by reacting a lower olefin with a saturated lower aliphatic mono-carboxylic acid in the vapor phase in the presence of a heteropolyacid catalyst characterized in that an amou... | 01/19/1999 |
| 5827939 | Heteropolyacid catalysts in the preparation of esters of unsaturated carboxylic acids Use of at least one heteropolyacid Hn Aa Dc Oy.xH.sub.2 O where A is phosphorus, boron, silicon, germanium, tin, arsenic, antimony, copper, nickel, cobalt, iron, cerium, thorium, chromium and mixtures thereof; D... | 10/27/1998 |
| 5789609 | Optically active diphosphine, transition metal complex containing the same, and process for producing optically active compound using the complex Disclosed are an optically active diphosphine represented by formula: ##STR1## wherein R represents a lower alkyl group having 1 to 4 carbon atoms; Ar represents a phenyl group which may be substituted with a lower alkyl group having 1 to 4 carbon at... | 08/04/1998 |
| 5681803 | Detergent composition having low skin irritability There is disclosed a detergent composition containing, as an essential ingredient, at least one member selected from three types of -sulfo-fatty acid derivatives as represented by following formulas (1), (2) and (3): ##STR1## where R... | 10/28/1997 |
| 5527949 | Method for making an amine and an alkyl ester and method for reducing hydrogen cyanide levels in alkyl ester A method for making an amine includes the steps of heating a reaction mixture including a nitrile, an acid, water and a substrate compound capable of generating a carbonium ion by reaction with the acid to generate a first reaction intermediate; treating ... | 06/18/1996 |
| 5384426 | Process for the preparation of isopropyl acetate Disclosed is an improved process for the refinement of isopropyl acetate, whereby there can be effectively prepared isopropyl acetate having a high purity of, for example, approximately 99.9%, in which a distillate fraction having a carbon number of 3 obt... | 01/24/1995 |
