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7612233 |
Production of sodium diformate
The calculation of the above balance shows that the division of stream ( 5 ) into the streams ( 5 a ) and ( 5 b ) used here leads to the fact that in the neutralization stage no excess sodium...
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7479570 |
Process for reduction of carbon dioxide with organometallic complex
Carbon dioxide and water are mixed with an organometallic complex represented by general formula (1) below
where R 1 , R 2 , R 3 , R 4 , R 5 , and R 6 independently represent a hydrogen atom...
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7420088 |
Method for the production of formic acid
The present invention relates to a process for preparing formic acid by thermally decomposing ammonium formates of tertiary amines A, wherein the tertiary amine A on which the ammonium formate is...
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7351860 |
Method and device for producing formic acid formates and use of said formates
The invention relates to a method for producing formic acid formates, whereby (a) formic acid methyl ester is partially hydrolysed with water; (b) formic acid methyl ester and methanol are...
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7323593 |
Method and device for producing formates and the use thereof
A process for preparing acid formates which comprises
(a) partially hydrolyzing methyl formates with water; (b) separating off by distillation methyl formate and methanol from the reaction...
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7253316 |
Flexible method for the joint production of (i) formic acid, (ii) a carboxylic acid comprising at least two carbon atoms and/or the derivatives thereof, and (iii) a carboxylic acid anhydride
Disclosed is a method for jointly producing (i) formic acid (III); (ii) a carboxylic acid comprising at least two carbon atoms (II) and/or the derivatives thereof; and (iii) a carboxylic acid...
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7241365 |
Material for a facility for the production of anhydrous formic acid
The invention relates to an apparatus and a process for the preparation of anhydrous or substantially anhydrous formic acid. This apparatus is constructed partly or entirely of substantially...
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7154001 |
Formate salt of O-desmethyl-venlafaxine
A novel salt of O-desmethylvenlafaxine, O-desmethylvenlafaxine formate, is provided. Pharmaceutical compositions, dosage forms and methods of use are also provided.
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7138545 |
Metal salts
Alkali metal carboxylate salt brines, such as cesium formate brine, are used in oil and gas drilling procedures. Contamination with chloride ions can be controlled by treatment with a silver salt...
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7135439 |
Free-flowing products comprising potassium formate
The present invention relates to a free-flowing potassium formate product, containing 0.1–1 weight % water, and comprises 0.5–5 weight % of a water soluble anticaking agent selected among...
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7001625 |
Solid phase synthesis of salts of organic acids including butyric acid
A process for the solid-phase synthesis of salts of organic acids in a granular, free-flowing, and dust-free form particularly suited for use as animal feed additives. A mixture of liquid organic...
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6992212 |
Felxible method for the common production of formic acid, a carboxylic acid having at least two carbon atoms, and/or the derivatives of the same
Formic acid and a carboxylic acid having at least two carbon atoms and/or derivatives thereof are prepared jointly by a process in which
(a) a formic ester (I) is transesterified with a...
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6955743 |
Method for producing furfural, acetic acid and formic acid from spent pulp-cooking liquor
The invention relates to a process for recovering and producing chemicals in a pulp production process where organic chemicals, such as formic acid and acetic acid, are used as cooking chemicals....
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6906222 |
Preparation for production of formic acid formates
A process is described for preparing acid formates in which methyl formate is reacted with water and a basic compound having a pK a of the conjugate acid of the corresponding dissociation state of...
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6867329 |
Waste water treatment in a method for producing formic acid which is free of water
The invention relates to a process for obtaining anhydrous or substantially anhydrous formic acid, in which firstly aqueous formic acid is prepared by hydrolysis of methyl formate and is freed from...
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6849764 |
Production of potassium formate
This invention relates to a process for the continuous production of potassium formate by the reaction of formaldehyde present in the reactor outlet gas in formaldehyde production plants with an...
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6841700 |
Method for producing anhydrous formic acid
The invention relates to a process for obtaining anhydrous or substantially anhydrous formic acid, in which firstly aqueous formic acid is produced by hydrolysis of methyl formate, with the...
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6838579 |
Utilization of an extracting agent as antifoaming agent in the production of anhydrous formic acid
The invention relates to a process for obtaining anhydrous or substantially anhydrous formic acid in which, during the work-up, a compound of the general formula I
where the radicals R1 and R2...
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6818450 |
Use of infrared spectroscopy for on-line process control and endpoint detection
The present invention is directed to an analytical method for measuring the concentration of an N-(phosphonomethyl)iminodiacetic acid (“NPMIDA”) substrate, an N-(phosphonomethyl)glycine...
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6793777 |
Method for separating and purifying an aqueous mixture that mainly consists of acetic acid and formic acid
The invention relates to a method for separating and purifying an aqueous mixture that mainly consists of acetic acid, formic acid and high-boiling substances by extraction with a solvent in a...
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6713649 |
Method for production of formic acid
The invention relates to a process for the preparation of formic acid, comprising the following steps: a) hydrolysis of methyl formate to give a mixture of water, formic acid, methanol and excess...
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6696603 |
Method for cleaning off-gas flows
The invention relates to a process for the preparation of anhydrous or substantially anhydrous formic acid. The process has the special feature that a liquid of the general formula I where the...
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6695952 |
Method for the separation of and purification of an aqueous mixture consisting of the main components acetic acid and formic acid
A method for the separation and purification of an aqueous mixture of main components, namely acetic acid and formic acid and non-volatiles by extraction, uses a solvent in a circulatory system. A...
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6652820 |
Methods of making cesium salts and other alkali metal salts
A method of making a cesium salt is described and involves reacting a cesium sulfate containing solution with lime to form 1) a solution containing at least cesium hydroxide and 2) a residue...
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6555078 |
Method of preparing lithium salts
The present invention provides an inexpensive process for the preparation of lithium salts of formula LiX having a desired or required level of purity using lithium chloride and lithium sulfate. In...
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6492551 |
Method for manufacturing alkali metal or alkaline-earth metal formate
A method for manufacturing alkali metal or alkaline-earth metal formate, starting from a formate anion comprises at least the following sequential steps: A) conversion of a solid anion exchanger to...
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6429333 |
Method for preparing formic acid
In a method for preparing formic acid, methyl formate is prepared with methanol as a reactant. In the method, methyl formate obtained from methanol in a reaction is fed through an ion exchange bed,...
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6258980 |
Production of metal salts
There is described a process for the production of a substantially anhydrous salt of an organic acid which comprises reacting a basic compound of a metal with the appropriate organic acid, removing...
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6137005 |
Method for manufacture of products containing disalts of formic acid
A method for manufacture of products containing disalts of formic acid. Potassium hydroxide, carbonate, bicarbonate or formate, sodium hydroxide, carbonate, bicarbonate for formate, cesium...
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6127573 |
Oxidaton of primary alcohols to carboxylic acids with a TEMPO catalyst using NaClO.sub.2 and NaClO
The present invention relates to a TEMPO-catalyzed oxidation of primary alcohols, RCH 2 OH to corresponding carboxylic acids, RCOOH in the presence of catalytic in the presence of catalytic amount...
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6015535 |
Process for producing purified cesium compound from cesium alum
Disclosed is a method for producing a predetermined cesium compound. The method comprises treating a cesium-containing material with a suitable reagent to dissolve at least a portion of the cesium...
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5879915 |
Method for the natural production of formic acid or formate
The subject of the invention is the use, for the production of formic acid and/or formate starting from a culture medium containing a fermentable sugar, of a bacterial strain having a deficiency...
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5831120 |
Process for the production of acetic acid
In the process for the production of acetic acid by carbonylation of methanol and/or a reactive derivative thereof the water concentration in the liquid reaction composition is maintained at a...
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5633402 |
Separation of formic acid from acetic acid by azeotropic distillation
Formic acid is difficult to separate from acetic acid by conventional distillation or rectification because of the proximity of their boiling points. Formic acid can be readily separated from...
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5605669 |
Process of preparing cesium salts from cesium aluminum alum
This invention relates to the preparation of cesium salts from cesium-aluminum-alum in a process in which the cesium-aluminum-alum is reacted in a single vessel in the presence of water with...
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5516406 |
Process for purifying acids formed during liquid phase oxidation of butane
A method of purifying the oxidate product formed by the liquid phase oxidation of C 4 -C 8 paraffinic hydrocarbons comprises adding a strong acid catalyst to the oxidate product to catalyze the...
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5475158 |
Preparation of cycloalkanols
A process for the preparation of cycloalkanols by the hydrolysis of cycloalkyl C 1 -C 4 fatty acid esters, which comprises the following steps: a) reaction of cycloalkyl C 1 -C 4 fatty acid...
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5411725 |
Process for the continuous conversion of one hydroxylamine salt to another hydroxylamine salt
The present invention relates to a process for the continuous conversion of one hydroxylamine salt to another hydroxylamine salt, said process involving a countercurrent liquid-liquid extraction...
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5376293 |
Deicer
Improved deicer compositions containing crystalline double salts formed from mixtures of relatively low molecular weight carboxylic acids (for example, mixtures of formic acid and acetic acid) are...
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5373023 |
Tetrahydronaphtalene derivatives, their preparation and pharmaceutical compositions containing them
The invention provides compounds which are tetrahydronaphthalene derivatives of the formula (I) ##STR1## wherein R 1 represents a halogen atom, a cyano group, a nitro group, an unbranched (C 1 -C...
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5334759 |
Preparation of formic acid from carbon monoxide and water
A process for the preparation of formic acid by the reaction of carbon monoxide with water at temperatures of from 100° to 250° C. and absolute from 100 to 350 bar, in which tertiary amines of...
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5294740 |
Preparation of formic acid by thermal cleavage of quaternary ammonium formates
A process for preparing formic acid by thermal cleavage of quaternary ammonium formates of the general formula I ##STR1## where R 1 , R 2 and R 3 are C 1 - to C 14 -alkyl, C 3 - to C 8 ...
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5288904 |
Method for the decomposition of trichloroacetic acid
A process for the decomposition of trichloroacetic acid (TCAA) to form chlorides, carbonates and formates is disclosed. The process comprises treating TCAA with 6 or more equivalents of a metal...
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5275702 |
Distillation method of separating organic solvents
The present invention discloses a method to separate each component from a mixed solution of organic solvents obtained during the production of α-L-aspartyl-L-phenylalanine methyl ester, which is...
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5239117 |
Rhodium catalyzed hydrogen transfer redox reactions
Oxidation/reduction processes catalyzed by soluble rhodium complexes of the type (L 4or5 Rh)Z - wherein each L is selected from a group consisting essentially of monophosphines, diphosphines,...
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5232558 |
Separation of 4-methyl-2-pentanone from formic acid by extractive distillation with DMSO
4-Methyl-2-pentanone cannot be easily separated from formic acid by distillation because of the closeness of their boiling points. 4-Methyl-2-pentanone can be readily removed from formic acid by...
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5228956 |
Separation of 3-pentanone from formic acid by extractive distillation
3-Pentanone cannot be completely removed from 3-pentanone and formic acid mixtures by distillation because of the presence of the maximum azeotrope. 3-Pentanone can be readily removed from...
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5206433 |
Preparation of formic acid
Anhydrous or substantially anhydrous formic acid is prepared by hydrolyzing methyl formate in the presence of a formamide and then obtaining the formic acid from the hydrolysis mixture by...
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5190619 |
Separation of 3-methyl-2-butanone from formic acid by extractive distillation with DMSO
3-Methyl-2-butanone cannot be separated from formic acid by distillation because of the presence of the maximum boiling azeotrope. 3-Methyl-2-butanone can be readily removed from formic acid by...
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5189216 |
Isolation of a carboxylic acid from an aqueous solution thereof
A process for the isolation of a carboxylic acid of the general formula (I) R 1 --COOH (I), in which R 1 denotes hydrogen, methyl, ethyl, or vinyl,...
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