- Process for producing organic peroxides
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The present invention relates to a method for producing organic peroxides and separating, purifying and concentrating sulfuric acid from aqueous effluents of said organic peroxide production process.
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Paragraph 0089-0090
(2021/09/29)
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- PROCESS FOR PRODUCING AN ORGANIC PEROXIDE
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This invention relates to a process for producing an organic peroxide and isolating, purifying, and concentrating the sulfuric acid from the aqueous effluents of said organic peroxide production process.
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Page/Page column 13
(2020/09/08)
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- De-coloring method for 2,5-dimethyl-2,5-bis(tertiary butyl peroxy) hexane
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The invention relates to a de-coloring method for 2,5-dimethyl-2,5-bis(tertiary butyl peroxy) hexane and belongs to the technical field of organic peroxide product preparation. The method comprises the following steps: firstly, putting a dilute acid solution into a reaction vessel with a stirring device and controlling the temperature of the reaction vessel at 10-40 DEG C and pressure at 0.1MPa; adding the to-be-de-colored 2,5-dimethyl-2,5-bis(tertiary butyl peroxy) hexane into the reaction vessel and starting the stirring device to stir; after ending the stirring, standing by and layering, recycling the separated lower layer dilute acid solution and acquiring the upper layer of de-colored 2,5-dimethyl-2,5-bis(tertiary butyl peroxy) hexane. The operation is simple; the severe use requirement can be met; the solid waste discharge can be reduced; the environmental protection property is reflected; the resources are saved; the pollution is avoided.
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Paragraph 0021; 0022; 0023
(2017/01/12)
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- Reactor for Preparing Organic Peroxides Via the Intermediate of a Solid Hydroperoxide
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A reactor which comprises a vessel (1) with a vessel bottom (2), a stirrer (3) arranged in the vessel, an emergency discharge valve (4) arranged in the vessel bottom for emptying the reactor in less than 600 seconds and at least one filtration device (5) arranged in the vessel bottom is suitable for the safe preparation of organic peroxides. The process for preparing an organic peroxide comprises the steps of preparing a solid hydroperoxide in the form of a suspension in the reactor, filtering the suspension through the filtration device (5) arranged in the vessel bottom (2) while retaining the solid hydroperoxide in the reactor and reacting the hydroperoxide with an alkylating agent, an acylating agent or a carbonyl compound.
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Page/Page column 3-4
(2009/07/25)
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- Preparation of 2,5-dimethylhexane-2,5-dihydroperoxide and derivatives thereof
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A one-step process for preparing 2,5-dimethylhexane-2,5-dihydroperoxide and its alkyl derivatives comprises: (1) adding sulfuric acid to a 60-70% hydrogen peroxide solution to form a first reaction mixture where the first mixture is controlled at a temperature in the range of from about -10° C. to about 10° C.; (2) adding 2,5-dimethyl-2,5-dihydroxy hexane to the mixture held at a temperature in the range of from about -10° C. to about 10° C. or lower to form a second reaction mixture and maintaining the second mixture at a temperature in the range of from about 20° C. to about 50° C. for about 5 minutes to about 5 hours to form a slurry containing the solid product of 2,5-dimethylhexane-2,5-dihydroperoxide, unreacted reactants and impurities; (3) lowering the temperature of the slurry to the range of from about -10° C. to about 10° C.; (4) removing unreacted reactants and impurities from the solid product and optionally, washing the solid product; and (5) adding sulfated alkyl alcohol, which is prepared by adding the alkyl alcohol to sulfuric acid, to the solid product to form a third reaction mixture and maintaining the third mixture at about 30° C. to about 60° C. for about 1 to about 5 hours to prepare the alkyl derivatives.
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- Preparation of aliphatic dihydroperoxides
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This invention relates to an improved process for preparing dihydroperoxyalkanes and, particularly, dimethyldihydroperoxyhexane. The improvement resides in utilizing a tetrahydrofuran derivative which is a liquid as a feedstock. This feedstock then is reacted with hydrogen peroxide in the presence of sulfuric acid to form the dihydroperoxide.
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- Novel organic peroxides and their use in the preparation of epoxide groups containing (co)polymers
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Novel organic peroxides of the general formula wherein p = 0 or 1 and n = 1, 2, 3 or 4 are described. These peroxides are excellently suitable for use in the preparation of epoxide groups-containing (co)polymers. Also described are shaped objects obtained by using (co)polymers thus modified.
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