present invention carbonate

present invention carbonate

Precipitated calcium carbonate with improved resistance

The present invention is directed to a process for producing precipitated calcium carbonate with improved resistance to structural breakdown, wherein the milk of lime is carbonated in the presence of at least one gas other than carbon dioxide, or the carbonation is carried out in the presence of a static gas bubble comminution unit as well as to precipitated calcium carbonate

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Process for preparing surface-reacted calcium carbonate ...

2019-4-16  The present invention relates to a process for producing a surface-reacted calcium carbonate, wherein a calcium carbonate-comprising material is treated with at least one inorganic acid and carbon dioxide in an aqueous medium to form an aqueous suspension of surface-reacted calcium carbonate, wherein the at least one water-soluble, inorganic magnesium salt

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US6495703B1 - Process for the preparation of glycerol ...

The present invention provides a simple and inexpensive process for preparing glycerol carbonate. Namely, according to the present invention, glycerol carbonate is prepared by reacting glycerol with urea.

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Ceramic coatings with apatite carbonate that allow a ...

2021-11-22  [0034] In a first aspect, the present invention relates to an additive or aggregate to be applied directly to one or more of the components of a ceramic coating during its production process, wherein said additive comprises: [0035] a material selected from the group comprising natural carbonate apatites, synthetic carbonate apatites, or ...

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Sodium to sodium carbonate conversion process (Patent ...

1997-1-1  The present invention discloses a gasifier and/or a gasification process that provides a long, uniform temperature zone in the gasifier, regardless of the particle size, chemical composition, and moisture content of the fuel by sandwiching a reduction zones between two oxidation zones.

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US Patent for Methods for processing meat using

2015-10-30  The present invention is in the field of processing meat. More particularly, the present invention relates to a method of processing meat to enhance moisture retention and flavor during storage and cooking by infusing the meat with an aqueous composition containing salt and sodium carbonate at a pH in the range of from 10.1 to 11.3.

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US Patent Application for Ceramic coatings with apatite ...

2017-3-24  In one aspect, the present invention comprises providing an additive or aggregate to be applied directly to one or more of the components of a ceramic coating and which is constituted by carbonate apatites particles which are maintained as aggregates within a matrix of silicoaluminates at firing temperatures of the ceramic coatings, where the main function of

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CO2 derived biodegradable polycarbonates: Synthesis ...

2019-10-1  Schematic illustration of the synthesis of poly (amide-co-urethane) copolymers from CO2 -based dicarbamates [ 94 ]. 4. Modification and application of PPC. Biodegradable, high-value and CO 2-based PPC is an amorphous polymer with low Tg and high viscosity at high temperature, thus exhibiting poor mechanical properties.

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Process for preparing surface-reacted calcium carbonate ...

2019-4-16  The present invention relates to a process for producing a surface-reacted calcium carbonate, wherein a calcium carbonate-comprising material is treated with at least one inorganic acid and carbon dioxide in an aqueous medium to form an aqueous suspension of surface-reacted calcium carbonate, wherein the at least one water-soluble, inorganic magnesium salt

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Dry grinding process of materials containing a carbonate ...

2006-5-24  [Translated] A first objective of the present invention is a method for dry grinding of a material which contains a carbonated mineral, characterized in that said method comprises the following steps: a) Dry grinding said material in at least one grinding unit: I ) In the presence of at least one polyalkylene glycol polymer where at least 90% but preferably 95%, and more

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Process for preparing a surface treated calcium carbonate ...

2019-2-26  The present invention relates to a process for preparing a surface treated calcium carbonate-comprising material, a surface treated calcium carbonate-comprising material obtained by the process, an article comprising the surface treated calcium carbonate-comprising material, a polymer composition and the use of the surface treated calcium carbonate-comprising material

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Carbonate Absorption System and Process for Carbon ...

摘要: The present invention relates to systems and processes for reducing the amount of carbon dioxide in a carbon dioxide-containing gas. In particular, the carbon dioxide-containing gas is contacted with a carbonate-containing solution.

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US Patent for Diaryl carbonate and method for producing ...

2020-1-9  The present invention is also directed to a method for producing an aromatic polycarbonate resin, wherein the method comprises performing melt polycondensation in the presence of a transesterification catalyst using the diaryl carbonate of the present invention and an aromatic dihydroxy compound.

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US Patent for Solution mining of carbonate/bicarbonate ...

1996-5-21  BACKGROUND OF THE INVENTION. 1. Field of the Invention. The present invention relates to a process for recovering sodium carbonate or other sodium based chemicals from solutions containing sodium bicarbonate and especially sodium bicarbonate solutions obtained from solution mining trona deposits.

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Ceramic coatings with apatite carbonate that allow a ...

2021-11-22  [0034] In a first aspect, the present invention relates to an additive or aggregate to be applied directly to one or more of the components of a ceramic coating during its production process, wherein said additive comprises: [0035] a material selected from the group comprising natural carbonate apatites, synthetic carbonate apatites, or ...

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US Patent Application for Ceramic coatings with apatite ...

2017-3-24  In one aspect, the present invention comprises providing an additive or aggregate to be applied directly to one or more of the components of a ceramic coating and which is constituted by carbonate apatites particles which are maintained as aggregates within a matrix of silicoaluminates at firing temperatures of the ceramic coatings, where the main function of

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US Patent for Methods for processing meat using

2015-10-30  The present invention is in the field of processing meat. More particularly, the present invention relates to a method of processing meat to enhance moisture retention and flavor during storage and cooking by infusing the meat with an aqueous composition containing salt and sodium carbonate at a pH in the range of from 10.1 to 11.3.

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US Patent for Synthesis of methyl carbamate and dimethyl ...

2013-11-11  Present invention provides a process for synthesis of methyl carbamate and dimethyl carbonate from methanol and urea in a horizontal sectionalized bubble column reactor with one or many sections, that enables cross flow stripping, thus significantly increasing process efficiency by not only stripping ammonia and/or DMC from the reaction mixture ...

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Carbonate Absorption System and Process for Carbon ...

摘要: The present invention relates to systems and processes for reducing the amount of carbon dioxide in a carbon dioxide-containing gas. In particular, the carbon dioxide-containing gas is contacted with a carbonate-containing solution.

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US Patent for Diaryl carbonate and method for producing ...

2020-1-9  The present invention is also directed to a method for producing an aromatic polycarbonate resin, wherein the method comprises performing melt polycondensation in the presence of a transesterification catalyst using the diaryl carbonate of the present invention and an

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HEAT STORAGE TANK OPTIMISED USING CALCIUM

2018-6-21  In particular a subject of the present invention is the use of at least one chemically inert solid heat storage material containing at least calcium carbonate particles, said calcium carbonate particles having a size distribution with a diameter d 50 of from 0.5 mm to 200 mm, preferably 1 mm to 100 mm, more preferentially from 2 mm to 50 mm and ...

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Ceramic coatings with apatite carbonate that allow a ...

2021-11-22  [0034] In a first aspect, the present invention relates to an additive or aggregate to be applied directly to one or more of the components of a ceramic coating during its production process, wherein said additive comprises: [0035] a material selected from the group comprising natural carbonate apatites, synthetic carbonate apatites, or ...

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US Patent for Methods for processing meat using

2015-10-30  The present invention is in the field of processing meat. More particularly, the present invention relates to a method of processing meat to enhance moisture retention and flavor during storage and cooking by infusing the meat with an aqueous composition containing salt and sodium carbonate at a pH in the range of from 10.1 to 11.3.

Read More
US Patent Application for Ceramic coatings with apatite ...

2017-3-24  In one aspect, the present invention comprises providing an additive or aggregate to be applied directly to one or more of the components of a ceramic coating and which is constituted by carbonate apatites particles which are maintained as aggregates within a matrix of silicoaluminates at firing temperatures of the ceramic coatings, where the main function of these aggregates is to provide

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US Patent for Synthesis of methyl carbamate and dimethyl ...

2013-11-11  Present invention provides a process for synthesis of methyl carbamate and dimethyl carbonate from methanol and urea in a horizontal sectionalized bubble column reactor with one or many sections, that enables cross flow stripping, thus significantly increasing process efficiency by not only stripping ammonia and/or DMC from the reaction mixture ...

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High solids and low viscous aqueous slurries of calcium ...

2013-7-10  摘要: The present invention concerns aqueous slurries with improved rheological stability under increased temperature. The slurries comprise a calcium carbonate containing material and at least one comb polymer.

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Beverage compositions comprising palatable calcium and ...

2001-1-4  n In particular, the present invention relates to beverage compositions comprising: n (a) a calcium source comprising a form selected from calcium carbonate, solubilized species thereof, and mixtures thereof; n (b) at least about 20 milligrams of a magnesium source per reference serving of the composition; wherein the compositions are ...

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Synthesis and Characterization of the Ethylene-Carbonate ...

2021-11-22  Natural phenolic products from herbal medicines and dietary plants constitute the main source of lead compounds for the development of the new drug. 4,4-Dimethylcurcumin (DMCU) is a synthetic curcumin derivative and exhibits anticancer activities against breast, colon, lung, and liver cancers. However, further development of DMCU is limited by unfavorable compound properties such

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