patent of phyhalic anhydride

    Safety Data Sheet (SDS) - HB Chemical

    Safety Data Sheet (SDS) Revision / Review Date: 6/12/15 1. Chemical Product and Company Identification . Phthalic Anhydride 85‐44‐9 4. First Aid Measures Inhalation: MAY BE FATAL IF INHALED. If breathed in, move person into . regulation or patent. It is the users responsibility to determine the suitability of

    patent of phyhalic anhydride,

    Phthalic anhydride - Wikipedia

    Phthalic anhydride is a principal commercial form of phthalic acid. It was the first anhydride of a dicarboxylic acid to be used commercially. This white solid is an important industrial chemical, especially for the large-scale production of plasticizers for plastics.

    Process for obtaining maleic acid anhydride - patents

    Process for obtaining maleic acid anhydride Abstract. A process for obtaining maleic acid anhydride from an aqueous maleic acid solution obtained from the gas phase oxidation of at least one organic compound having at least 4 carbon atoms by washing out the reaction gases with water, characterized in that a H.sub.2 O exchange is carried out between maleic acid and an organic …

    Phthalic Anhydride - an overview | ScienceDirect Topics

    Phthalic anhydride is widely used worldwide for an extremely broad range of applications spanning from the plastics industry to the synthesis of resins, agricultural fungicides and amines. Its production is currently based on the vapor phase oxidation of o-xylene and naphthalene.

    SI Group - Phthalic Anhydride

    No statement contained herein concerning a possible or suggested use of any material, product or design is intended, or should be construed, to grant any license under any patent or other intellectual property right of SI Group, Inc., its subsidiaries or its affiliates covering such use or design, or as a recommendation for the use of such .

    SI Group - Phthalic Anhydride

    No statement contained herein concerning a possible or suggested use of any material, product or design is intended, or should be construed, to grant any license under any patent or other intellectual property right of SI Group, Inc., its subsidiaries or its affiliates covering such use or design, or as a recommendation for the use of such .

    Phthalic anhydride reactor - Patent - Europe PMC

    The present invention belongs to the field of phthalic anhydride producing apparatus, and is especially one kind of phthalic anhydride reactor. The phthalic anhydride reactor includes one cylindrical shell with gas inlet, gas outlet, molten salt inlet and molten salt outlet one molten salt passage .

    US Patent for Catalyst for the preparation of phthalic .

    A catalyst for the preparation of phthalic anhydride is disclosed which comprises a carrier having an open arcuate configuration, e.g. in the form of half rings, and an active portion including V.sub.2 O.sub.5 and porous TiO.sub.2 with the pores having mostly a radius in the 500 to 1,500 A range.

    ChE 455 Fall 2009 Major 1 Phthalic Anhydride Production

    Major 1 Phthalic Anhydride Production Background You work for an operating company that produces, among other products, phthalic anhydride via the partial oxidation of o-xylene in a fixed-bed catalytic reactor. The plant produces approximately 75,000 tonne/y of high-purity (99.9 mol%) phthalic anhydride …

    LIQUID PHTHALIC ANHYDRIDE RECOVERY PROCESS - Patent .

    A process for recovering phthalic anhydride as a liquid from a vapor phase oxidation product which comprises mixing the vapor phase oxidation product having a temperature in the range of about 130 DEG C or greater with a first stream comprising maleic anhydride and/or at least one compound selected from the group consisting of:; citraconic .

    PHTHALIC ANHYDRIDE, SUPP A. - IHS Markit Home Page

    Report No. 34A PHTHALIC ANHYDRIDE Supplement A by LLOYD M. ELKIN June 1974 A private report by the PROCESS ECONOMICS PROGRAM * I STANFORD RESEARCH INSTITUTE

    Phthalic anhydride | C8H4O3 | ChemSpider

    Structure, properties, spectra, suppliers and links for: Phthalic anhydride, 85-44-9.

    US Patent for Mixing in oxidation to phthalic anhydride .

    Sep 09, 2008· Justia Patents Including Internal Mixing Or Stirring Means US Patent for Mixing in oxidation to phthalic anhydride Patent (Patent # 8,968,671) Mixing in oxidation to phthalic anhydride . Sep 9, 2008 - ExxonMobil Chemical Patents Inc. A system for mixing ortho-xylene with an oxygen-containing gas such as air comprises an evaporator vessel fed .

    Phthalic anhydride CAS#: 85-44-9 - ChemicalBook

    Phthalic Anhydride is an organic compound and the anhydride of phthalic acid (P384480). Phthalic Anhydride is an important industrial chemical commonly used in large-scale production of plasticizers f or plastics. Recent research have also evaluated Phthalic Anhydride …

    Phthalic anhydride - Wikipedia

    Phthalic anhydride is the organic compound with the formula C 6 H 4 (CO) 2 O. It is the anhydride of phthalic acid. Phthalic anhydride is a principal commercial form of phthalic acid. It was the first anhydride of a dicarboxylic acid to be used commercially.

    Make phthalic anhydride with low air ratio process .

    article{osti_5952875, title = {Make phthalic anhydride with low air ratio process}, author = {Verde, L. and Nari, A.}, abstractNote = {A new process for the production of phthalic anhydride from o-xylene has been developed by Alusuisse Italia S.p.A. and is now being implemented in one of the two large reactors (15,500 tubes each) of Ftalital, Division of Alusuisse Italia.

    Partial Oxidation of n-Pentane over Vanadium Phosphorus .

    and 20 % phthalic anhydride were obtained. It is proposed that the products formed through the diene intermediate. KEYWORDS Selective oxidation, n-pentane, vanadium phosphorus oxide, hydroxyapatite, maleic anhydride, phthalic anhydride. 1. Introduction Maleic anhydride (MA) and phthalic anhydride …

    Make phthalic anhydride with low air ratio process .

    article{osti_5952875, title = {Make phthalic anhydride with low air ratio process}, author = {Verde, L. and Nari, A.}, abstractNote = {A new process for the production of phthalic anhydride from o-xylene has been developed by Alusuisse Italia S.p.A. and is now being implemented in one of the two large reactors (15,500 tubes each) of Ftalital, Division of Alusuisse Italia.

    Phthalic anhydride | C6H4(CO)2O - PubChem

    Phthalic anhydride is an important intermediate in the chemical industry. The major subsequent product groups are plasticizers (56%), unsaturated polyester resins (17%), and alkyd resins (17%). Phthalic anhydride is also used as an intermediate in the production of pigments and dyes, agricultural, pharmaceutical, and several other chemical .

    PHTHALIC ANHYDRIDE | CAMEO Chemicals | NOAA

    Phthalic anhydride reacts violently with CuO at elevated temperatures [Park, Chang-Man, Richard J. Sheehan. "Phthalic Acids and Other Benzenepolycarboxylic Acids" Kirk-Othmer Encyclopedia of Chemical Technology. John Wiley & Sons, Inc. 2005].

    A method of processing still bottoms from the distillation .

    The General characteristics of the analogue and the proposed technical solutions are the distillation of phthalic anhydride from the residue, cooled to translate bottoms in solid state. A method of processing by-products generated upon receipt of phthalic anhydride (U.S. Patent N 4181489).

    Technobell Technology | GRP Technologies | Chemical .

    technobell was granted a patent for . maleic anhydride & phthalic anhydride production technologies & resins production. grp pipes production technologies. chemical process technologies. production of unsaturated polyester resins. why technobell. our technology is distinguished by:

    Phthalic Anhydride Latest Prices | Global Price Database

    Phthalic Anhydride (a.k.a. PHTAN) is the anhydride of phthalic acid. It appears as a colorless or white solid in the form of needles and it has a characteristic odor. It is toxic if inhaled and it is a skin irritant. When mixed with water, if forms a corrosive solution.

    50KT Phthalic Anhydride Plan - Used Plants

    Crude Phthalic Anhydride collected from the switch condensers contains impurities such as phthalic acid, benzoic acid, o- and p- toluic acid, maleic anhydride and traces of other compounds. The crude Phthalic Anhydride is thermally treated to dehydrate phthalic acid and maleic acid and to convert product color-related impurities into compounds .

    6.5 Phthalic Anhydride - US EPA

    e Consists of phthalic anhydride, maleic anhydride, benzoic acid. f Value shown corresponds to relatively fresh catalyst, which can change with catalyst age. Can be 9.5 - 13 kg/Mg (19 - 25 lb/ton) for aged catalyst. g Consists of phthalic anhydride and maleic anhydride. h Normally a vapor, but can be present as a particulate at low temperature.

    patent of phyhalic anhydride,

    US1897110A - Process of purifying phthalic anhydride .

    d treatment of patented feb. 14, 1933 united states! patent orr cs paul c. bowebs, 0f penns grove, new jersey, assignob to e. i. du point de nekours & company, of wilmington, delaware, a oobpobatioit of dela- ware process of purifying phthalic anhydbide io drawing.

    Phthalic anhydride process and product. - Patent - Europe PMC

    A phthalic anhydride product having a particle configuration made up of a mixture of spheroids, needle-like crystals, and amorphous particles is produced by feeding molten phthalic anhydride at a temperature between 131 DEG and 155 DEG into a spray nozzle in a closed cycle congealing chamber. The molten phthalic anhydride is discharged from the spray nozzle into a co-current or counter …

    MSDS - Phthalic Anhydride (03.06.2019)

    MATERIAL SAFETY DATA SHEET SDS / MSDS Product Name: PHTHALIC ANHYDRIDE Revision Date : 03.06.2019 Page 1 of 6 1. Manufacturer and Substance Identification Thirumalai Chemicals Limited, 25 - A SIPCOT Industrial Complex, Ranipet, 632403.Tamil Nadu, India.

    Phthalic anhydride process and product. - Patent - Europe PMC

    A phthalic anhydride product having a particle configuration made up of a mixture of spheroids, needle-like crystals, and amorphous particles is produced by feeding molten phthalic anhydride at a temperature between 131 DEG and 155 DEG into a spray nozzle in a closed cycle congealing chamber. The molten phthalic anhydride is discharged from the spray nozzle into a co-current or counter …

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