Abstract: The present invention provides for an improved process wherein an olefin, an alcohol, or an ester, halide or ether derivative of said alcohol is reacted with carbon monoxide in a liquid phase in the presence of a catalyst system that contains (a) a rhodium component, and (b) and iodine or bromine component. By passing at least a portion of the liquid reaction mass from the reaction zone to a separation zone of substantially lower CO partial pressure, at least a portion of the carbonylation products, as well as unreacted carbon monoxide, inert gases and unreacted olefin, alcohol or alcohol derivatives are vaporized and can be withdrawn from the separation zone. Precipitation of the rhodium catalyst under carbon monoxide deficient conditions is prevented or retarded by addition to the carbon monoxide deficient zones of the system of a catalyst stabilizer which is a germanium (IV) compound, an alkali metal compound, and mixtures thereof.
Abstract: A method for solubilization and naturation of somatotropin protein from refractile bodies of host cells is disclosed. The method embraces the discovery that an aqueous solution of urea, or dimethylsulfone, or mixtures of urea and dimethylsulfone, can be effectively used to solubilize refractile bodies containing such somatotropin protein. Once solubilized, somatotropin protein can be natured in an aqueous solution of urea, or dimethylsulfone, or mixtures of urea and dimethylsulfone, by contacting the solution with a mild oxidizing agent for a time sufficient to result in the formation of the disulfide bonds. Naturation can efficiently occur even at high protein concentration, in an impure preparation and in the absence of reducing agent.
Type:
Grant
Filed:
August 25, 1986
Date of Patent:
March 15, 1988
Assignee:
Monsanto Company
Inventors:
Larry A. Bentle, James W. Mitchell, Stephen B. Storrs, Grant T. Shimamoto
Abstract: Crystalline calcium sodium metaphosphate is prepared by (a) forming a wet mix slurry having a composition on a dry basis equivalent to a CaO/Na.sub.2 O/P.sub.2 O.sub.5 mol percent ratio of about 24.0-34.0/12.0-18.0/50.0-60.0, with the proviso that the CaO/Na.sub.2 O mol ratio is from about 1.60 to about 2.00, (b) forming and growing product crystals of calcium sodium metaphosphate under crystal formation and growth conditions between the solid phase of the wet mix slurry and substrate crystals of calcium sodium metaphosphate.
Type:
Grant
Filed:
December 8, 1986
Date of Patent:
March 8, 1988
Assignee:
Monsanto Company
Inventors:
Edward J. Griffith, John R. Jany, Vaidy R. Nathan, Toan M. Ngo
Abstract: Substantially crystalline calcium sodium metaphosphate having a degree of crystallinity from about 60% to about 75% as determined from density and differential thermal analysis measurements is prepared by (a) bringing together in water source materials for CaO, Na.sub.2 O, and P.sub.2 O.sub.5 in proportions sufficient to provide a CaO/Na.sub.2 O/P.sub.2 O.sub.5 mol percent ratio on a dry basis of about 29.0-34.0/16.0-18.0/50.0-53.0 and form a wet mix slurry containing a solid phase and an aqueous liquid phase and (b) heating the wet mix slurry at a temperature and for a time sufficient to remove the aqueous liquid phase and calcine the resulting solid phase to form the substantially crystalline calcium sodium metaphosphate.
Type:
Grant
Filed:
November 5, 1986
Date of Patent:
February 16, 1988
Assignee:
Monsanto Company
Inventors:
Vaidy R. Nathan, John R. Jany, James E. Downes
Abstract: Substantially crystalline calcium sodium metaphosphate having a degree of crystallinity from about 60% to about 75% as determined from density and differential thermal analysis measurements is prepared by (a) forming a dry mixture of source materials for CaO, Na.sub.2 O, and P.sub.2 O.sub.5 in proportions sufficient to provide a CaO/Na.sub.2 O/P.sub.2 O.sub.5 mol percent ratio on a dry basis of about 29.0-34.0/16.0-18.0/50.0-53.0 and (b) heating the mixture at a temperature and for a time sufficient devolatilize the mixture and calcine the resulting mixture to form the substantially crystalline calcium soldium metaphosphate.
Type:
Grant
Filed:
November 5, 1986
Date of Patent:
February 16, 1988
Assignee:
Monsanto Company
Inventors:
Vaidy R. Nathan, Alan W. Seder, James E. Downes
Abstract: Asbestiform crystalline calcium sodium metaphosphate fiber is prepared by (a) forming a wet mix slurry having a composition on a dry basis equivalent to a CaO/Na.sub.2 O/P.sub.2 O.sub.5 mol percent ratio of about 24.0-34.0/12.0-18.0/50.0-60.0, with the proviso that the CaO/Na.sub.2 O mol ratio is from about 1.60 to about 2.00, (b) forming and growing product crystals of calcium sodium metaphosphate under crystal formation and growth conditions between the solid phase of the wet mix slurry and substrate crystals of calcium sodium metaphosphate, and (c) fiberizing the product crystals of calcium sodium metaphosphate.
Type:
Grant
Filed:
December 8, 1986
Date of Patent:
January 5, 1988
Assignee:
Monsanto Company
Inventors:
Edward J. Griffith, John R. Jany, Vaidy R. Nathan, Toan M. Ngo
Abstract: A process for preparing an ethylenediamine intermediate for the production of an ethylenediaminetetraacetonitrile. Formaldehyde is combined with ethylenediamine at a mole ratio of 1 to 2 respectively wherein the molar ratio of ethylenediamine to formaldehyde in the reaction mixture at least 0.48 or greater.
Abstract: Iron/lithium promoted phosphorus-vanadium-oxygen catalysts for the production of maleic anhydride are prepared by contacting a substantially tetravalent vanadium-containing compound and a phosphorus-containing compound and a promoter component containing each of iron and lithium in a substantially anhydrous alcohol medium in the presence of anhydrous hydrogen chloride to form an iron/lithium promoted phosphorus-vanadium-oxygen catalyst precursor. The catalyst precursor is recovered, dried, roasted, formed into structures if structures are desired, and calcined.
Type:
Grant
Filed:
October 28, 1985
Date of Patent:
June 2, 1987
Assignee:
Monsanto Company
Inventors:
Robert A. Keppel, Victoria M. Franchetti
Abstract: This invention relates to a new class of organic chemical compounds. More particularly, this invention is concerned with amido and hydrazido derivatives of N-phosphinothioylmethylglycine esters. This class of compounds has been found to be useful as herbicides.
Abstract: Silahydrocarbons such as tetraorganosilanes prepared from halo-substituted silanes and an organomagnesium compound in the presence of a catalytically effective amount of a cyanide.
Abstract: An apparatus is provided for pelletizing finely divided particulate or pulverant materials. The apparatus is particularly effective in pelletizing large quantities of such particulate materials to a desirable spheroidal pellet size.
Type:
Grant
Filed:
April 23, 1985
Date of Patent:
February 17, 1987
Assignee:
Monsanto Company
Inventors:
Lawrence F. Rakestraw, Harry M. Stevens
Abstract: Disclosed are compositions of polyethylene terephthalate and certain N-substituted phthalimide plasticizers, particularly polyethylene terephthalate molding compositions additionally containing a reinforcing agent and a nucleating agent.
Type:
Grant
Filed:
May 17, 1985
Date of Patent:
January 27, 1987
Assignee:
Monsanto Company
Inventors:
Gail H. Birum, Thomas C. Mathis, Richard D. Stolk
Abstract: Novel herbicidal oxime derivatives of aryl glyphosate esters are described and claimed along with a process for producing such oxime derivatives.
Type:
Grant
Filed:
June 6, 1985
Date of Patent:
January 6, 1987
Assignee:
Monsanto Company
Inventors:
Om P. Dhingra, John E. Franz, Harrison R. Hakes
Abstract: Catalysts useful for the partial oxidation of nonaromatic hydrocarbons, particularly n-butane, with molecular oxygen or an oxygen-containing gas in the vapor phase to produce maleic anhydride are provided which comprise phosphorus, vanadium, and oxygen and a promoter component containing each of iron and lithium.
Type:
Grant
Filed:
October 28, 1985
Date of Patent:
December 30, 1986
Assignee:
Monsanto Company
Inventors:
Robert A. Keppel, Victoria M. Franchetti
Abstract: Aromatic compounds are nitrated in the vapor phase via a process comprising contacting the aromatic compounds with a nitrating agent in the presence of a nitration promoting catalyst comprising the adduct of a Group 4b-Group 3b metal oxide composition represented by the empirical formula:(M.sup.1.sub.a M.sup.2.sub.b O.sub.c).sub.x (NO.sub.2).sub.ywherein M.sup.1 is at least one element selected from Group 4b of the Periodic Table of the Elements, M.sup.2 is at least one element selected from Group 3b of the Periodic Table of the Elements, a is 1, b is 0 to 20, c is a number taken to satisfy the average valences of M.sup.1 and M.sup.2 in the oxidation states in which they exist in the composition, x is 1, and y is 0 to c, and a catalytically effective amount of sulfur trioxide. Such catalysts are particularly effective to catalyze the vapor phase nitration of chlorobenzene and are characterized in such reaction by providing a para/ortho isomer distribution ratio of at least about 2/1.
Abstract: Sheet composites containing asbestiform crystalline calcium M phosphate fibers wherein M is a metal cation selected from the group consisting of sodium and lithium, and mixtures thereof, are useful as a replacement or substitute for asbestos sheets in applications where fibrous materials are needed.
Type:
Grant
Filed:
December 24, 1984
Date of Patent:
September 2, 1986
Assignee:
Monsanto Company
Inventors:
Marvin M. Crutchfield, John A. Hinkebein
Abstract: A tall oil rosin paper sizing composition comprising a homogeneous aqueous liquid which is fully miscible with water at 5.degree. C. On a solids basis, the composition contains between about 15% and about 75% by weight of an alkali metal soap of a condensation product of tall oil rosin and an aldehyde, and between about 85% and about 25% by weight urea. Also disclosed are methods for preparation and use of the novel paper sizing composition.
Abstract: Grafted starch polymer solution of a low viscosity through the use of cinnamic acid material. The cinnamic acid material is incorporated into the grafted starch polymer which is prepared from starch and vinyl monomer, preferably acrylamide.
Abstract: This invention relates to novel esters of N,N'-methylene-bis-[N-[(diaryloxyphosphinyl)methyl]glycine] which are useful as herbicides. The invention also relates to herbicidal methods and compositions employing the novel esters.
Type:
Grant
Filed:
February 5, 1985
Date of Patent:
July 22, 1986
Assignee:
Monsanto Company
Inventors:
James A. Sikorski, Deborah Mischke, Gerard A. Dutra
Abstract: Hydroxyibuprofen is produced in good yield by reduction of p-isobutylacetophenone at the cathode in the presence of carbon dioxide. Hydroxyibuprofen is readily hydrogenolyzed to ibuprofen. Electrochemical carboxylation of other selected aryl methyl ketones is also effected.