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7527825 |
Method for avoiding the agglomeration of pellets treated at high temperatures
A method for avoiding the agglomeration of pellets of several kinds of materials when treated at high temperatures, which comprises: covering the pellets with a long term stabilized magnesium...
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6949236 |
Aminosulfonate product-treated nitrogen-containing salt particles
Addition of an aminosulfonate product to an inorganic nitrogen-containing salt provides a composition of matter with improved properties. In particular, 2-acrylamido-2-methylpropanesulfonic acid...
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6800263 |
Non-caking sodium chloride crystals, a process to make them, and their use in an electrolysis process
The invention relates to specific non-caking salt (NaCl) compositions with a pH of 1-10 comprising at least one metal (iron, titanium and/or chromium) complex of a hydroxypolycarboxylic acid, a...
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6365120 |
Method for hardening granular inorganic salt compounds
Solid inorganic particulate salts having increased hardness are produced by incorporating a novel additive composition comprised of ammonium sulfate and a naphthalene sulfonate compound.
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5698005 |
Composition which is simultaneously anticlumping and water-repellant for salts, simple and complex fertilizers and process for the use thereof
The invention relates to a composition, which is simultaneously anticlumping and water-repellent, for salts, simple and complex fertilizers. This composition contains: on the one hand, an...
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5630992 |
Anti-caking agents for ammonium thiocyanate
A composition comprising ammonium thiocyanate and an amount of an anti-caking agent selected from amines and amine salts, which is effective to reduce the caking of the ammonium thiocyanate, is...
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5416141 |
Cationic modified layer compounds
Halogen-containing synthetic resins can be stabilized with calcium and/or zinc soaps. Co-stabilizers are necessary for enhancing their stabilizing effect. The invention relates to special cationic...
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5277886 |
Method for reducing the risk in transporting and storing liquid ammonia
The addition of a nucleating or coalescing agent (e.g., urea) to liquid ammonia reduces the size and persistence of a deadly, fog-like cloud of ammonia droplets that tend to form when liquid...
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5270370 |
Red phosphorus
Evolution of phosphine from red phosphorus is reduced by means of acyclic, aliphatic compounds having at least one carbon-to-carbon double bond, in the alpha-position relative to an...
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5258133 |
Sodium percarbonate stabilized with a coating of an alkalimetal citrate
A stable coated percarbonate bleach product is described wherein sodium percarbonate particles are coated with at least 1% by weight of an alkalimetal citrate wherein the product is formed by...
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5200236 |
Method for wax encapsulating particles
Solid core particles encapsulated in a single coat of paraffin wax, the wax having a melting point of about 40° to about 50° C. and a solids content of from 100 to about 35% at 40° C. and from 0 to...
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5183648 |
Process for preparing magnesia having reduced hydration tendency, hydration resistant magnesia, dry mixture for preparing magnesia based castables and magnesia based castable
The invention concerns a process for preparing magnesia having reduced hydration tendency, wherein magnesia particles are treated with a solution of an inorganic acid, an organic acid an/or salts...
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4923689 |
Aluminum nitride power having improved water-resistance
Disclosed herein is an aluminum nitride powder having the improved water-resistance, which is obtained by treating the aluminum nitride powder with an inorganic or organic phosphoric acid compound...
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4853144 |
Moisturized compositions of hydrate-forming phosphates and methods for preparation thereof
A composition of matter in particulate, crystalline form. The composition comprises a hydrate-forming phosphate selected from the group consisting of sodium tripolyphosphate, sodium pyrophosphate...
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4849198 |
Method of reducing the tendency of particulate active oxygen compounds to cake
Particulate, active-oxygen compounds, especially sodium percarbonate, tend to cake during storage, which makes it more difficult to handle them. The invention reduces this caking tendency while the...
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4834957 |
Concentrated suspension of aqueous magnesium oxide
An aqueous magnesium oxide suspension is disclosed which comprises from about 15 to about 50 percent by weight MgO, based on the combined weight of water, MgO, suspension aid, and anti-hydration...
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4804484 |
Antifloc additives for sodium bromide compositions
Solid sodium bromide and aqueous sodium bromide solutions incorporate sodium tartrate and one or more amides of nitrolotriacetic acid in order to inhibit floc formation in aqueous sodium bromide...
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4717555 |
Anticaking and antidusting composition for ammonium nitrate
An aqueous liquid anticaking and antidusting composition is disclosed which comprises from 20 to 30 parts of a sodium naphthalene sulfonate, from 17 to 28 parts of an ammonium naphthalene...
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4652435 |
Stabilized ferrous compound composition
A composition comprising a ferrous compound and as a stabilizer, at least one compound selected from the group consisting of (A) erythorbic acid compounds, (B) hydroxycarboxylic acid compounds and...
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4569834 |
Carbon black pellets having enhanced dispersion properties
A pelletized carbon black having enhanced dispersion properties is prepared by replacing conventional pelletizing binders with a binder material which is thermally stable at the pellet drying...
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4492679 |
Cyanuric chloride having improved shelf life
A cyanuric chloride of improved shelf life is described, which contains 0.1 to 10% of dicyandiamide by weight. The cyanuric chloride of the invention shows both a decidedly lesser tendency to cake...
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4451383 |
Recyclable hot pad
A liquid melt becomes converted to crystalline form at a particular temperature either spontaneously or when artificially nucleated. The liquid releases heat at crystallization. If the liquid is in...
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4402862 |
Stabilization of hygroscopic salts
The invention relates to the stabilization against water uptake of hygroscopic salts useful as catalysts by formation of anhydrous adducts with particulate support materials in order to facilitate...
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4356020 |
Fertilizer compositions containing alkylene oxide adduct anticaking agents
This invention relates to fertilizer compositions containing alkylene oxide anticaking agents. More particularly, this invention relates to a method of decreasing the caking during storage in a...
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4321243 |
Method of producing stabilized aqueous dispersions of silica fume
Silica fume, the by-product from the manufacture of silicon and ferrosilicon alloys, is dispersed in water and the aqueous dispersion is stabilized to retain its fluidity and redispersibility by...
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4321152 |
Grinding of titaniferous ores to enhance recovery of titanium dioxide
Significant enhancement of titanium dioxide recovery from a titaniferous ore is achieved by improving the efficiency of the comminution of the ore with the use of polyols of the formula:...
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4298585 |
Process of making sodium perborate
In a process of making sodium perborate, crystallization is performed in the presence of an organic polymer with a high potential content of free carboxylic groups derived from maleic anhydride,...
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4265854 |
Process inhibiting the coalescence of flowable phosphorus pentachloride in closed containers
A process inhibiting the coalescence of flowable phosphorus pentachloride in a closed container. To this end, the invention provides for a readily volatizable organic liquid boiling within the...
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4252735 |
Stable aqueous alkali metal aluminate solutions
The specification discloses a method of stabilizing aqueous alkali metal aluminate solutions against precipitation of solids and/or the development of a cloudy appearance over a period of standing....
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4234552 |
Stabilization of sulphur
Sulphur is stabilized in a form wholly or partially insoluble in carbon disulphide by incorporating therewith a dixanthogen of the formula ##STR1## wherein R and R1 are each independently an alkyl,...
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4219590 |
Method for improving calcium carbonate
A method for improving calcium carbonate by causing calcium carbonate particles to undergo contact reaction with an acid gas capable of reacting with calcium carbonate for finely uniformizing the...
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4215097 |
Process for the manufacture of sodium perborate monohydrate and product thereof
Abrasion resistant granules of sodium perborate monohydrate are made by introducing an aqueous solution containing hydrogen peroxide and an aqueous solution containing sodium metaborate...
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4208388 |
Flow aid
The flowability of particulate lime is enhanced by treatment with effective amounts of selected fluid polymethylhydrogensiloxanes, polydimethylsiloxanes, and/or mixtures thereof.
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4201756 |
Granular calcium hypochlorite coated with an inorganic salt
A coated, rounded, solid calcium hypochlorite granule is described which is comprised of granular calcium hypochlorite encapsulated with a plurality of layers of an inorganic salt other than...
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4192756 |
Anticaking of sodium chloride and potassium chloride
Caking of potassium chloride and sodium chloride in the particle size range of 20 mesh and finer is inhibited by adding one or more alkaline earth or multi-valent metal salts of lignosulfonate in...
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4159312 |
Calcium carbonate powders
Surface-treated calcium carbonate powders of this invention are easy to handle and highly dispersible in water, give slurries of high concentration and are useful as pigments and various other...
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4108960 |
Compositions containing dithionites
Anhydrous metal dithionite compositions are stabilized by 0.1 to 5% by weight of the composition of one or more of vanillin, ethyl vanillin and benzoin.
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4107274 |
Process for preventing caking and obtaining flowability of alkali chlorides and salt mixtures thereof
Caking of industrial alkali metal chlorides and mixtures containing them in storage is prevented and a flowable product is obtained by adding a hydrophilic and/or a hydrophobic material, in...
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4051228 |
Preventing caking and obtaining flowability of alkali chlorides and salt mixtures thereof
Caking of industrial alkali metal chlorides and mixtures containing them in storage is prevented and a flowable product is obtained by adding a hydrophilic and/or a hydrophobic material, in...
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4026991 |
Process for stabilizing lime mud
There is provided a process for stabilizing lime mud so as to eliminate balling during calcination of the same by incorporating a surface active agent decomposable at a temperature below 1500° F ...
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4001378 |
Anti-caking of nitrogenous materials
Composition of matter and process effecting a nitrogen-containing material that flows freely and resists caking even on prolonged storage. It can be manufactured to yield a desired percent nitrogen...
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3987077 |
Composition useful for reducing the caking tendency of particulate sodium chloride
An aqueous solution is prepared by: (a) admixing nitrilotriacetonitrile and aqueous hydrochloric acid to form a first mixture; (b) reacting the nitrilotriacetonitrile and the hydrochloric acid...
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3981973 |
Crystal growth in the presence of finely divided polytetrafluoroethylene
Metal salts which are crystallizable from a saturated aqueous solution of the salt in the presence of a dispersion of polytetrafluoroethylene (hereinafter referred to as PTFE) resin are grown as...
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3981964 |
Sodium sulphate compositions and their production
Chrome saltcake has stable free flowing properties imparted to it by subjecting the sodium dichromate impurity present in chrome saltcake to reaction to form a product that is less susceptible to...
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3922332 |
Manufacture of free-flowing inorganic ammonium or potassium salts
Free-flowing inorganic ammonium or potassium salts are produced by adding to said salts a mixture of half-esters of sulfuric acid with isomeric nonanols. The salts can be handled (metered, stored,...
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3919405 |
Stabilization of alkali metal and/or alkaline earth metal hydrides
Process of stabilizing alkali and/or alkaline earth metal hydrides which comprises coating the particles of hydride by contacting them with a solution of liquid saturated hydrocarbons, boiling in...
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3856922 |
PROCESS FOR PREPARING SUBSTANTIALLY NON-CAKING SODIUM CHLORIDE
Treating crystalline sodium chloride with N-2-acetamide iminodiacetic acid or N,N-bis-(2,2'-acetamido)-glycine renders the sodium chloride substantially non-caking and modifies the appearance of...
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3770390 |
CRYSTAL HABIT MODIFICATION OF INORGANIC SALTS USING POLYMERIC SULFONATES OR SULFATES
Disclosed herein is an improved method for crystallizing water-soluble inorganic salts. The improvement comprises adding to the crystallizing system a small amount of a monovalent salt of a...
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3661530 |
PREPARATION OF FREE-FLOWING SULFUR COMPOSITION
Preparation of a free-flowing sulfur composition consisting essentially of particulate rhombic sulfur and a hydrocarbon having from about 6 to 50 carbon atoms in an amount sufficient to prevent...
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3660070 |
PROCESS OF PREVENTING AGGLOMERATION OF FERTILIZERS
A granular fertilizer is treated with an anti-caking agent consisting of an aqueous solution of (1) a substantially water-insoluble polymer of polyvinyl acetate, polyvinyl acetals, partially...
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