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8067587 |
Process for the production of monoalkali metal cyanurates
A process for making monoalkali metal cyanurates in a powdery form from a cyanuric acid powder by adding thereto a concentrated aqueous solution of an alkali hydroxide such as sodium or potassium...
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7700786 |
Pyrazole derivative, intermediate therefor, processes for producing these, and herbicide containing these as active ingredient
The present invention provides a pyrazole derivative of the general formula (1), which has an excellent efficacy as an active component for a herbicide, an intermediate for the production thereof,...
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7642303 |
Thermoplastic articles for packaging UV sensitive materials, processes for the articles production and use and novel UV absorbers
Thermoplastic composition and articles containing UV absorbers that protect the articles contents from harmful UV radiation are disclosed as well as methods for making the thermoplastic articles...
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6926809 |
Device and process for the purification of cyanuric chloride
The present invention relates to a device and method for the production of cyanuric chloride. The device has three units for the production, purification and isolation of cyanuric chloride, the...
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6555656 |
Covalent modification of abnormal prion protein
A prion-physiological structure and associated method of formation. A provided abnormal prion has a transforming power over a normal prion to convert the abnornal prion into defective prion that...
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6252073 |
Method of producing alkali metal salts or alkaline earth metal salts of 2,4-dichloro-6-hydroxy-s-triazine
A method for producing alkali metal salts or alkaline earth metal salts of 2,4-dicloro-6-hydroxy-s-triazine, especially the sodium salt, by reacting cyanuric chloride with an alkali hydroxide or...
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5425786 |
Process for the production of suspensions of cyanuric chloride in aqueous liquids
A process is described for the production of a suspension of cyanuric chloride in an aqueous liquid, more particularly, water. Molten cyanuric chloride is sprayed using a spray arrangement...
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5298620 |
Process for the destruction of cyanuric fluoride in the residues obtained during its preparation
Process for the reliable and quantitative destruction of the residual cyanuric fluoride which still remains in residues from the cyanuric fluoride preparation by reaction of cyanuric chloride with...
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5268457 |
Reactive dyes containing a chloro or fluorotriazine group
Reactive dyes of the formula ##STR1## are particularly suitable for dyeing or printing cellulosic fibre materials by the exhaust method or by continuous processes and give, with a high color yield,...
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5223617 |
Process for producing chloroisocyanurate compounds with concentrated salt-free hypochlorous acid
A process for producing a chloroisocyanuric acid compound which comprises reacting cyanuric acid with a chlorinating agent consisting of an aqueous solution of hypochlorous acid substantially free...
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5125930 |
Polymeric cationic dyes including a quaternized pyridinium group
Polymeric cationic dyes wherein the same or different monomer components represented by the following formula (1) are linked at the terminal amino groups by a crosslinking agent: H2...
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5039800 |
Process for producing trichloroisocyanuric acid
When trichloroisocyanuric acid is produced by a process which comprises supplying unreacted chlorine from a second reaction zone to a cooled mixture of cyanuric acid and an aqueous alkali solution...
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4963160 |
Reactive uv absorbing compositions and method of preparing lenses therefrom
An ultraviolet radiation absorbing agent for bonding to an ocular lens, wherein the agent has the formula: ##STR1## wherein A and B are ultraviolet radiation absorbing components which are either...
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4837320 |
One-amine-2-sulpho-4-[(4-halo-6-amino triazinyl-2)aminocyclohexylamino]anthraquinone reactive dyestuffs
Dyestuffs of the formula ##STR1## wherein R1 and R2 are each hydrogen or C1 -C4 -alkyl and R3 is phenyl substituted with sulpho have the meaning given in the description, and their use for the...
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4716103 |
Chemically active triazine support composition
A support composition based on triazine derivatives is prepared having high binding capacity. The support composition contains a polymer compound having no triazine groups, a polymer compound with...
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4645835 |
Process for making chloroisocyanuric acids
Chloroisocyanuric acids are made by reacting an aqueous suspension of cyanuric acid while stirring with an alkali metal compound in the presence of chlorine gas between 0° and 40° C. at a pH of l...
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4621143 |
Cockroach repellants
A number of novel amides were found to be highly effective as cockroach repellents.
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4603200 |
Process for concentrating dilute slurries of cyanuric acid compounds
A process is described for concentrating a dilute slurry of s-triazine compounds in a liquid phase which comprises: (a) passing said dilute slurry across an enclosed surface of a porous medium (b)...
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4599411 |
Process for the production of alkali metal salts of dichloroisocyanuric acid
A process for producing a sodium compound comprises admixing trichloroisocyanuric acid, cyanuric acid, and sodium bicarbonate to form a homogeneous mixture. The homogeneous mixture is reacted with...
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4552959 |
Process for producing a suspension of cyanuric chloride in water
The process and the apparatus according to the invention are used to produce a suspension of cyanuric chloride in water, or to react cyanuric chloride with ammonia or with amines. It is possible to...
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4542218 |
Method of halogenating isocyanuric acid
An improved method for reacting a gas with a liquid medium and an improved reactor therefore is described. In this method, gas is fed to the liquid medium in an agitated reactor through a plurality...
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4535160 |
Process for obtaining solid cyanuric chloride in finely divided form
The present invention provides a process for obtaining solid cyanuric chloride from the cyanuric chloride vapor obtained by trimerizing cyanogen chloride by separating out in a separation chamber,...
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4533733 |
Process for obtaining cyanuric chloride in solid or liquid form
The present invention provides a process for obtaining cyanuric chloride in solid and/or liquid form from an optionally contaminated cyanuric chloride vapor, wherein cyanuric chloride, after...
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4503225 |
Process for the preparation of free-flowing, coarsely crystalline sodium dichloroisocyanurate dihydrate
Novel, advantageous process for the preparation of free-flowing, coarsely crystalline sodium dichloroisocyanurate dihydrate by reacting dichloroisocyanuric acid and sodium hydroxide, sodium...
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4490528 |
Production of chloro-s-triazine triones
A process for producing chloro-s-triazine trione with improved crystal properties comprising reacting cyanuric acid, alkali metal hydroxide, and chlorine in water, and crystallizing the resulting...
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4443600 |
Surfactant washing of polychloroisocyanuric acids
A process for the production of a polychloroisocyanuric acid filter cake having reduced moisture and salt content leading to quicker drying and a purer product is disclosed. Such a result is...
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4395548 |
Process for production of an alkali metal dichloroisocyanurate and trichloroisocyanuric acid
A process to manufacture trichloroisocyanuric acid of commercially acceptable size and quality from a mother liquor used to produce an alkali metal salt of dichloroisocyanurate by monitoring and,...
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4377344 |
Apparatus for bringing liquids in contact
There is provided an apparatus for bringing into contact liquids at least one of which is viscous, the apparatus consisting essentially of a tubular container, a first nozzle from introducing a...
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4374985 |
Hydrated alkali metal dichloroisocyanurate and its production
Hydrated alkali metal dichloroisocyanurate particles are prepared in a process which comprises, in a first step, spraying droplets of an aqueous slurry of alkali metal dichloroisocyanurate into an...
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4351644 |
Process for handling liquid cyanuric chloride
Solid cyanuric chloride is supplied to the gas space of a cyanuric chloride melt with the help of a gas tight product stopper. Preferably there is used for this a screw conveyor in which the gas...
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4331519 |
Process for the production of ((mono-trichloro)-tetra-(monopotassium-dichloro))-penta-isocyanurate)
((Mono-trichloro)-tetra-(monopotassium-dichloro))-penta-isoc
yanurate is produced from cyanuric chloride in an electrolytic process by reacting it at the anode in an aqueous medium containing...
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4281122 |
Preparation of sodium dichloro-s-triazine trione compositions
Sodium dichloro s-triazine trione compositions can be prepared in high yields with essentially no waste disposal requirements, without need for refrigeration, with ease of process control and...
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4273928 |
Preparation of salts of dihalogenated isocyanurates by oxidative hydrolysis of amino substituted triazines
Salts of dihalogenated isocyanurates are prepared by reacting amino substituted triazines with at least stoichiometric amounts of a halogen containing compound at a temperature of 35° to 70° C. a...
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4271298 |
Process for the production of suspensions or solutions of cyanuric chloride in water
Suspension or solutions of cyanuric chloride in water are prepared at high mixing velocities and low temperatures with resulting low degree of hydrolysis by introducing liquid cyanuric chloride...
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4271297 |
Process for the production of suspension or solutions of cyanuric chloride in organic solvents (I)
Suspension or solutions of cyanuric chloride in water containing organic solvents are prepared at high mixing velocities and low temperatures with resulting low degree of hydrolysis by introducing...
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4269979 |
Process for the production of suspension or solution of cyanuric chloride in organic solvents (II)
Finely divided suspensions of cyanuric chloride in organic solvents which are practically water free are prepared at high mixing velocities and low temperatures by introducing liquid cyanuric...
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4260752 |
Chlorination process
The invention provides a continuous process for the production of chlorocyanuric acids by the reaction of di- and/or tri-sodiumcyanurate with chlorine in which the reaction mixture is stirred to...
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4250308 |
Process for the recovery of solid cyanuric chloride (A)
Solid cyanuric chloride is recovered by a process of spraying liquid cyanuric chloride which preferably is freed from chlorine and cyanogen chloride to the maximum extent possible, the cyanuric...
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4220768 |
Process for the production of polychloroisocyanuric acids
A process for the production of polychloroisocyanuric acids in which a depressant is added to the reaction mixture. The polychloroisocyanuric acid particles produced have improved filterability and...
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4208519 |
Cyanuric acid chlorination with alkali metal hypochlorite
Alkali metal dichloroisocyanurates are instantly and quantitatively prepared by reacting cyanuric acid with an alkali metal hypochlorite in an aqueous reaction medium having a cyanuric acid to...
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4182871 |
Process for spray drying sodium dichloroisocyanurate
A stable, free-flowing sodium dichloroisocyanurate dihydrate powder is prepared by spray drying an aqueous solution or slurry of sodium dichloroisocyanurate to form a particulate product having a...
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4149988 |
Decomposition inhibitors for chloroisocyanurates
Decomposition of chloroisocyanurates such as trichloroisocyanuric acid or alkali metal dichloroisocyanurates is inhibited by the presence of alkaline earth metal sulfates. The sulfates may be used...
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4145543 |
Alkali metal dichloroisocyanurate compositions
Alkali metal dichloroisocyanurate compositions having improved resistance to thermal decomposition comprise an alkali metal dichloroisocyanurate and a proportion of an alkali metal chloride where...
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4138559 |
Recovery of chlorine and cyanuric acid values from polychloroisocyanuric acids and salts thereof
A process for recovering chlorine values from an aqueous solution of a chloroisocyanuric acid compound is disclosed. After reacting a mineral acid with the aqueous solution to form an acidified...
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4138296 |
Method for removing nitrogen trichloride from chlorine gas
In a process for making chlorine electrolytically in which a build-up of nitrogen trichloride occurs in the bottoms of cooling apparatus, a method and apparatus is provided wherein the nitrogen...
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4122267 |
Chlorinated s-triazine trione compositions and process for their preparation
New chlorinated s-triazine trione compositions are prepared in essentially theoretical yields and with essentially no waste disposal requirements.
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4118570 |
Process for producing sodium dichloroisocyanurate
The present invention is an improvement in a process for the production of sodium dichloroisocyanurate (SDCC) wherein both an aqueous reaction mixture containing SDCC and the by-product NCl3 and a...
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4118569 |
Chloroisocyanurate compounds
Novel hydrated, potassium-containing chloroisocyanurate complex compounds and mixtures thereof are described together with processes for preparing the same. The novel compounds of this invention,...
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4103088 |
Formation of crystalline [(mono-trichloro) tetra-(monopotassium dichloro)] p
Preparing a crystalline [(mono-trichloro) tetra(monopotassium dichloro)] penta-isocyanurate by reacting an unsubstituted or amino substituted triazine with at least stoichiometric amounts of...
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4099005 |
Apparatus and method for dispensing solids into a liquid medium
A device for dispensing solid into a liquid medium. The device utilizes a funnel with a vortical stream therein for feeding solids into a reaction zone. A portion of the contents of the reaction...
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