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7438756 |
Method of improving material comprising a pozzolanic component
The invention relates to a method of improving a material comprising a pozzolanic component. According to the invention the material is treated with an aqueous liquid resulting in treated,...
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7396521 |
Heat transfer fluids with hetero-nanocapsules
A heat transfer fluid with hetero-nanocapsules. The heat transfer fluid comprises a fluid and a plurality of hetero-nanocapsules, uniformly dispersed in the fluid, in an amount of 0.01 to 10 parts...
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7393558 |
Methods for producing protective coatings
A protective coating on a metal surface comprises a particulate material produced by a method including heating an animal skeletal material to a temperature of at least 1000° C. for a time...
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7252713 |
Mesoporous glass as nucleant for macromolecule crystallisation
A method of facilitating the crystallisation of a macromolecule comprising the step of adding a mesoporous glass to a crystallisation sample wherein the mesoporous glass comprises pores having...
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6777542 |
Method and apparatus for reducing the calcium and phosphorous ratio and increasing crude protein in shellfish waste meal
This invention relates to a method and apparatus for the processing of shellfish waste meal. More particularly, to increasing the crude protein while decreasing calcium and phosphorus levels of...
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5711802 |
Heat treatment of lime sludge
A method and plant for heat treatment of lime sludge (CaCO 3 ) formed by the causticizing process during the manufacture of paper pulp. The lime sludge is dried and pulverized in a first process...
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5690897 |
Method for purification of calcium carbonate
A method for lowering the iron content of calcium carbonate is disclosed. The method involves addition of an iron chelating agent to an aqueous calcium carbonate slurry, reducing the pH of the...
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5547640 |
Compact high temperature air purifier
An extremely compact, energy efficient air purifier for incinerating volatile organic chemical contaminants, and airborne organic particulates comprises a cylindrical ceramic heat transfer/storage...
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5498362 |
Process for the production of road deicers from water plant residuals
An improved process for the production of road deicer products preferably containing calcium magnesium acetate or calcium magnesium acetate/calcium magnesium propionate is provided. The process...
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5476642 |
Magnesium hydroxide and process for production thereof
Magnesium hydroxide of the formula Mg(OH) 2 having a crystallite size in the direction <004> greater than 150 Å and smaller than 500 Å, an aspect ratio in the range from 2 to 5, a strain...
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5409714 |
Antimicrobial agent and method for sustaining freshness of food
An antimicrobial agent contains a calcined product of a calcium oxide type prepared by calcining shells of an oyster and/or a calcined product of a calcium hydroxide type as a hydrate of the...
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5188814 |
Method of bleaching
The invention concerns a method of bleaching particles containing calcium carbonate by keeping them in contact with an aqueous solution containing hydrogen peroxide and having a pH-value below 8.
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5122350 |
Method for preparing calcium magnesium acetate and a residual mineral product by selectively calcining dolomite
Fermentors, reactors and processes for preparing magnesium enriched calcium magnesium acetate (CMA) (Mg:Ca mole ratios of 1:1 to 20:1) by reacting a dolomitic lime product with a Mg:Ca mole ratio...
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5084254 |
Natural calcium carbonate ores
There is disclosed a process for purifying a calcium carbonate-containing mineral which process comprises the following steps: a) mixing the calcium carbonate-containing mineral with water and a...
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4978516 |
Process for treating talc
A process for improving a purity and/or whiteness degree of a talc powder is disclosed. A talc powder with a particle size of about 0.8 mm or less containing impurities such as asbestos, etc. is...
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4937056 |
Process for obtaining high purity magnesium compounds from magnesium containing materials
Processes for the selective leaching of magnesium-containing solids, which contain calcium and/or heavy metals, and the selective precipitation and crystallization of the leached magnesium are...
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4875938 |
Method of making a mortar binder and product
A method of making a mortar binder including the steps of heating marine shell material to a predetermined high range of temperature, allowing the material to cool, mixing with the material a...
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4824653 |
Method of bleaching limestone
A method for improving the brightness of limestone utilizing a chelating agent and a bleaching agent in a limestone slurry in which the pH of the slurry is normally between 9.0 and 9.6.
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4770860 |
Porous hydroxyl apatite material
A porous hydroxyl apatite material is disclosed which is made from calcium-rich basic skeletons of lime-encrusting algae converted into hydroxyl apatite and which serves for use as artificial bone,...
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RE32609 |
Continuous process for the manufacture of calcium magnesium acetate deicer
Finely divided lime, at any degree of slaking, is introduced in a steady stream into an agitated reactor designed to produce pellets or aggregates. Concentrated acetic acid is simultaneously...
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4572825 |
Process for bleaching natural chalk
For bleaching natural chalk, an aqueous suspension consisting of 50 to 80% by weight fine-grained natural chalk and 50 to 20% by weight water and containing 0.1 to 1.5% by weight, based on the dry...
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4508690 |
Method of producing very pure magnesium oxide
Very pure magnesium oxide is obtained from ore containing magnesium, more particularly ore containing magnesium carbonate, by calcining the ore and leaching the resulting magnesium oxide with...
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4488978 |
Coarse-particle calcium/magnesium acetate suitable for roadway and walkway deicing, and process for its manufacture
A process for the manufacture of calcium acetate pellets suitable for surface deicing, which comprises slow addition of water to dried calcium acetate or to calcium acetate freshly prepared from...
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4474737 |
Process of purification of magnesic raw material
Process of purification of magnesic raw material. Sulphur dioxide is allowed to react with an aqueous suspension of calcinated magnesite, crude or contaminated magnesium oxide, magnesium hydroxide,...
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4430242 |
Novel road and highway deicer and traction agent, and process for its manufacture
A process of reacting aqueous acetic acid and crushed raw limestone in such a way as to produce a mixture of calcium acetate, calcium acid-acetate, and unreacted raw limestone devoid of undesirable...
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4426308 |
Process of making calcium acetate deicing agents
A process of making a calcium acetate-containing solution having a pH value at room temperature between about 7 and about 8 is provided comprising reacting acetic acid with a carbonate compound,...
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4389323 |
Process of making two uniform grades of calcium magnesium acetate
A process of making different grades of calcium magnesium acetate deicing agents, having substantially uniform but different calcium-to-magnesium mole ratios, from limestone having varying...
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4239736 |
Method for increasing the brightness of limestone
Method for improving the brightness of limestone utilizing a flocculating agent and a bleaching agent where the pH of the slurry is between about 7 and 9.
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4176157 |
Calcining calcium sulphate dihydrate
A method and apparatus for calcining calcium sulphate dihydrate in a calcination vessel in which the dihydrate is heated in the vessel to calcination temperature not only by heat applied to the...
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4154802 |
Upgrading of magnesium containing materials
This invention is concerned with the recovery of relatively pure magnesia from magnesite which is normally contaminated with too much silica and silicates to permit the magnesite simply to be...
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4066735 |
Process for demineralization of crustacea shells
This disclosure is concerned with the demineralization of crustacea shells and the like, before or after protein removal therefrom, with sulfurous acid, thus to convert the calcium carbonate of the...
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3897366 |
Automotive exhaust gas catalyst
A plurality of glass fiber bodies of alkaline-free glass fibers containing an exhaust gas catalyst in which the bodies are separated by heat conductive metal partitions.
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3853488 |
PROCESSING OF CALCIUM CARBONATES
A method of treating a wet processed natural calcium carbonate to produce a bulk-handlable material in which the wet processed natural calcium carbonate is partially dewatered to obtain a...
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3467495 |
PREPARATION OF CALCIUM PHOSPHATES
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3269941 |
Method of neutralizing acid bleachery effluent
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3236593 |
Process for the manufacture of a mineral feed additive essentially consisting of dicalcium phosphate
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3033649 |
Process for recovering alkaline earth metal sulfates in manufacturing alkaline earthmetal sulfonates
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3025131 |
Process for the removal of carbonates from carbonate-containing ores
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2946656 |
Dibasic alkaline earth metal phosphate and luminescent powders containing such phosphate
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2881048 |
Process for the production of magnesite which is poor in silica or silica-free
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3677703 |
Title is not available
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