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Class 562/609 - Formic acid per se or salt thereof


Subclass of Class 562 - Organic compounds -- part of the class 532-570 series
Definition: The compound which is formic acid or its salts and processes
No. of patents: 145
Last issue date: 04/17/2012


1        
NumberTitleIssue Date
8158822Process for producing potassium formate
The present invention relates to a process for producing potassium formate. Formaldehyde, potassium hydroxide and isobutyraldehyde are reacted in water, at a molar ratio of 1.0:1.0:1.0 to 3.0:2.0:1.0 and at a temperature of 0-1000 C, preferably 30-700 C. The obtaine...
04/17/2012
7868203Production of sodium diformate
The present invention relates to a process for producing a solid sodium diformate preparation having a formic acid content of at least 35% by weight based on the total weight of sodium diformate preparation, in which, at elevated temperature, an aqueous solution (E)...
01/11/2011
7612233Production of sodium diformate
The calculation of the above balance shows that the division of stream (5) into the streams (5a) and (5b) used here leads to the fact that in the neutralization stage no excess sodium formate is produced, so that any ejection can b...
11/03/2009
7479570Process 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 R1, R2, R3, R4, R5, and R6 independently rep...
01/20/2009
7420088Method 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 based has a boiling point at atmospheric pressure in the range from 10...
09/02/2008
7351860Method 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 separated by distillation from the reaction mixture obtained in step (a), for...
04/01/2008
7323593Method 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 mixture obtained in proce...
01/29/2008
7253316Flexible 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 anhydride (VII). According to said method, (a) a formic acid ester (I) is ...
08/07/2007
7241365Material 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 zirconium-free materials. The extractant employed is a liquid of the genera...
07/10/2007
7211550Compositions for controlling scaling and completion fluids
An aqueous-based composition containing cesium formate and at least one chelating agent is described. Methods of removing scaling deposits, which may include alkaline earth metal sulfates, present on surfaces, including porous media, such as alkaline earth metal sul...
05/01/2007
7156906Impregnating agent
The present invention relates to an impregnating agent for wood against fungi which will break down the cellulose and lignin in the wood. The impregnating agent comprises a mixture of potassium diformate and propionic- and/or acetic- and/or benzoic acid and/or a fix...
01/02/2007
7154001Formate 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. ...
12/26/2006
7138545Metal 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 solution, and removing silver chloride formed. High density brines can...
11/21/2006
7135439Free-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 carbonates, chlorides and hydroxides of alkali metals, and having water af...
11/14/2006
7101443Supercritical carbon dioxide-based cleaning of metal lines
Supercritical carbon dioxide may be utilized to clean metal lines (e.g. copper, cobalt). The supercritical carbon dioxide cleans may include hydrogen gas in one embodiment, hydrofluoric acid in another embodiment, and hexafluoroacetyl acetone as a metal-binding liga...
09/05/2006
7001920Formate 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. ...
02/21/2006
7001625Solid 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 acids, including butyric acid, is applied to an inert, absorbent carri...
02/21/2006
6992212Felxible 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 carboxylic acid having at least two carbon at...
01/31/2006
6986909Solid phase synthesis of salts of organic 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 liquid organic acid is applied to an inert, absorbent carrier. A solid base is then added during...
01/17/2006
6963009Use of a supplemental promoter in conjunction with a carbon-supported noble-metal-containing catalyst in liquid phase oxidation reactions
This invention relates to the use of a supplemental promoter in conjunction with a noble-metal-containing catalyst comprising a carbon support in catalyzing liquid phase oxidation reactions. In a particularly preferred embodiment, a supplemental promoter (mos...
11/08/2005
6955743Method 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. The process of the invention is based on regeneration of cooking acids...
10/18/2005
6906222Preparation 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 pKa of the conjugate acid of the corresponding dissociation state of ≧3 measured at 25° C. in aqueous solution, the methanol ...
06/14/2005
6867329Waste 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 water in the subsequent work-up. The process has the special feature...
03/15/2005
6849764Production 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 aqueous solution of potassium hydroxide, wherein the formaldehyde is in...
02/01/2005
6841700Method 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 methanol content in the methyl formate having been reduced in advance. The p...
01/11/2005
6838579Utilization 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 are alkyl, cycloalkyl, ar...
01/04/2005
6818450Use 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 product, formaldehyde, formic acid, N-methyl-N-(phosphonomethyl)glycine (“...
11/16/2004
6793777Method 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 cyclic process. The inventive method is characterized in that the flow of...
09/21/2004
6713649Method 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 methyl formate; b) removal of the methanol and excess me...
03/30/2004
6695952Method 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 raffinate stream is mixed with the larger proportion of wa...
02/24/2004
6696603Method 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 ##STR1## where the radicals R1 and R2 are alkyl, c...
02/24/2004
6652820Methods 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 comprising calcium sulfate. The method further involves removing...
11/25/2003
6555078Method 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 the process of the invention, a lithium salt selected fro...
04/29/2003
6492551Method 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 formate form by feeding into it a solution containing a f...
12/10/2002
6429333Method 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, in which the hydrolysis into formic acid and methanol and...
08/06/2002
6258980Production 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 a substantial proportion of water present so as to produc...
07/10/2001
6137005Method 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 hydroxide, carbonate, bicarbonate or formate or ammonium formate o...
10/24/2000
6127573Oxidaton of primary alcohols to carboxylic acids with a TEMPO catalyst using NaClO2 and NaClO
The present invention relates to a TEMPO-catalyzed oxidation of primary alcohols, RCH2 OH to corresponding carboxylic acids, RCOOH in the presence of catalytic in the presence of catalytic amount of NaClO and stoichiometric amount of NaClO...
10/03/2000
6015535Process 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 contained in the material and form a slurry; adding a base...
01/18/2000
5879915Method 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 in the transportation or the metabolism of at least one ferm...
03/09/1999
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