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IN2014DN08423A - - Google Patents

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Publication number
IN2014DN08423A
IN2014DN08423A IN8423DEN2014A IN2014DN08423A IN 2014DN08423 A IN2014DN08423 A IN 2014DN08423A IN 8423DEN2014 A IN8423DEN2014 A IN 8423DEN2014A IN 2014DN08423 A IN2014DN08423 A IN 2014DN08423A
Authority
IN
India
Prior art keywords
catalysts
acid
mixtures
acrylic acid
acid derivatives
Prior art date
Application number
Inventor
Juan Esteban Velasquez
Janette Villalobos Lingoes
Dimitris Ioannis Collias
Jane Ellen Godlewski
Marc Andrew Mamak
Original Assignee
Procter & Gamble
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Procter & Gamble filed Critical Procter & Gamble
Publication of IN2014DN08423A publication Critical patent/IN2014DN08423A/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
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    • B01J27/16—Phosphorus; Compounds thereof containing oxygen, i.e. acids, anhydrides and their derivates with N, S, B or halogens without carriers or on carriers based on C, Si, Al or Zr; also salts of Si, Al and Zr
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B01J27/18—Phosphorus; Compounds thereof containing oxygen, i.e. acids, anhydrides and their derivates with N, S, B or halogens without carriers or on carriers based on C, Si, Al or Zr; also salts of Si, Al and Zr with metals other than Al or Zr
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B01J27/18—Phosphorus; Compounds thereof containing oxygen, i.e. acids, anhydrides and their derivates with N, S, B or halogens without carriers or on carriers based on C, Si, Al or Zr; also salts of Si, Al and Zr with metals other than Al or Zr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B01J27/1802—Salts or mixtures of anhydrides with compounds of other metals than V, Nb, Ta, Cr, Mo, W, Mn, Tc, Re, e.g. phosphates, thiophosphates
    • B01J27/1817—Salts or mixtures of anhydrides with compounds of other metals than V, Nb, Ta, Cr, Mo, W, Mn, Tc, Re, e.g. phosphates, thiophosphates with copper, silver or gold
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Abstract

Catalysts for dehydrating hydroxypropionic acid hydroxypropionic acid derivatives or mixtures thereof to acrylic acid acrylic acid derivatives or mixtures thereof with high yield and selectivity short residence time and without significant conversion to undesired side products such as for example acetaldehyde propionic acid and acetic acid are provided. The catalysts are mixed protonated monophosphates. Methods of preparing the catalysts are also provided.
IN8423DEN2014 2012-04-11 2013-04-11 IN2014DN08423A (en)

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US201261623054P 2012-04-11 2012-04-11
US13/760,444 US10106484B2 (en) 2012-04-11 2013-02-06 Catalysts for the conversion of hydroxypropionic acid or its derivatives to acrylic acid or its derivatives
US13/840,192 US10294186B2 (en) 2012-04-11 2013-03-15 Catalysts for the production of acrylic acid or its derivatives
US13/835,187 US9926256B2 (en) 2012-04-11 2013-03-15 Catalytic conversion of lactic acid to acrylic acid
PCT/US2013/036163 WO2013155297A2 (en) 2012-04-11 2013-04-11 Catalysts for the production of acrylic acid or its derivatives

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