Abstract

Processes and systems for purifying ethylene oxide, including introducing a feed stream including ethylene oxide to a heat exchanger to heat the feed stream, feeding the heated feed stream to a distillation apparatus base below a first stage, removing from the distillation apparatus an impurity fraction as a top exit stream from the distillation apparatus …

Legal parties

Party
Inventors (applicants): Steven R. Osborne, Andrew Addie, Harvey E. Andresen, Gary L. Culp, Liping L. Zhang, Clarence P. Stadlwieser, Michael Habenschuss, Michael L. Hutchison, John P. Dever, Donald R. Culp, Bernie B. Osborne
Assignees (initial): Dow Technology Investments LLC (Midland, US)
Agents: Brooks, Cameron & Huebsch, PLLC (attorney)

The application was examined by T. Victor Oh (USPTO dept. 1622)

Claims

  • 1. A process for distilling ethylene oxide from a feed stream, the process comprising: …
  • 2. The process of claim 1 , where the process includes heating a liquid content …
  • 3. The process of claim 1 , where the process includes feeding the aldehyde enriched …

Cited documents

Patents

  • Gilman et al. US 3418338 A, Dec. 1, 1968
  • Fuchs et al. US 7179875 B2, Feb. 1, 2007
  • Oka et al. US 6437199 B1, Aug. 1, 2002
  • JP 54-16416, Feb. 1, 1979
  • McIntire et al. US 2815650 A, Dec. 1, 1957
  • Courter US 2771473 A, Nov. 1, 1956
  • WO WO 2009/094103, Jul. 1, 2009
  • N'eel et al. US 4983260 A, Jan. 1, 1991
  • Cunningham US 3729899 A, May. 1, 1973
  • Ozero US 3964980 A, Jun. 1, 1976
  • WO WO 2004/056453, Jul. 1, 2004
  • GB 564646, Oct. 1, 1944
  • Bracken at al. US 3216177 A, Nov. 1, 1965
  • Foster et al. US 3867113 A, Feb. 1, 1975
  • Coffey US 5529667 A, Jun. 1, 1996
  • WO WO 2006/120207, Nov. 1, 2006
  • Fuchs et al. US 2004/0236049 A1, Nov. 1, 2004
  • Ahmed et al. US 4845296 A, Jul. 1, 1989
  • Viswanathan et al. US 2005/0277778 A1, Dec. 1, 2005
  • Bessling et al. US 6833057 B1, Dec. 1, 2004
  • Tsao US 3398062 A, Aug. 1, 1968
  • DE 10138150, Feb. 1, 2003
  • Cunningham et al. US 3766714 A, Oct. 1, 1973
  • Maslen US 2775600 A, Dec. 1, 1956
  • Minoda et al. US 3531376 A, Sep. 1, 1970
  • FR 2851564, Aug. 1, 2004
  • Lowe et al. US 2697104 A, Dec. 1, 1954
  • JP 62-12770, Jan. 1, 1987
  • Lutz US 3165539 A, Jan. 1, 1965
  • Broz US 3904656 A / 549/538, Sep. 1, 1975
  • Ozero US 4134797 A, Jan. 1, 1979
  • JP 62012770, Jan. 1, 1987
  • DE 19924533, Nov. 1, 2000
  • Andreis et al. US 2005/0103617 A1, May. 1, 2005
  • WO WO 2009/105252, Aug. 1, 2009
  • Delannoy et al. US 4966657 A, Oct. 1, 1990
  • DE 199 24 533, Nov. 1, 2000
  • FR 2 851 564, Aug. 1, 2004
  • Kawabe US 6080897 A, Jun. 1, 2000
  • Beekman et al. US 2006/0264648 A1, Nov. 1, 2006
  • GB 589547, Jun. 1, 1947
  • Cocuzza et al. US 3948621 A, Apr. 1, 1976
  • Bessling et al. US 6123812 A, Sep. 1, 2000
  • N'eel et al. US 4597833 A, Jul. 1, 1986
  • Cocuzza et al. US 4033617 A, Jul. 1, 1977
  • Schröder et al. US 6498272 B1, Dec. 1, 2002
  • DE 1165567, Mar. 1, 1964
  • Pendergast et al. US 5233060 A, Aug. 1, 1993
  • JP 54016416, Feb. 1, 1979
  • EP 0 181 273, May. 1, 1986
  • FR 1 330 900, May. 1, 1963
  • CZ 104663, Aug. 1, 1962
  • EP 0181273, May. 1, 1986
  • Vanderwater US 3745092 A, Jul. 1, 1973
  • WO WO 03/055869, Jul. 1, 2003
  • FR 1330900, May. 1, 1963
  • DE 101 38 150, Feb. 1, 2003
  • Lidell US 3094401 A, Jun. 1, 1963
  • Lutz US 3174262 A, Mar. 1, 1965
  • McClellan US 2615901 A, Oct. 1, 1952

Drawings

Brief Description of the Drawings

FIG. 1 provides an embodiment of a system of the present disclosure. FIG. 2 provides an embodiment of a system of the present disclosure. FIG. 3 …

Description

Field of the Disclosure

This disclosure relates to a process for distilling alkylene oxide from feed streams containing the same. More particularly, this disclosure relates to an improved process for distilling ethylene oxide …

Other Patent Relations

This application claims priority to U.S. Provisional Application 61/137,514 filed Jul. 31, 2008, the specification of which is incorporated herein by reference, and is co-filed with co-owned U.S. Patent Applications …

Detailed Description

Embodiments of the present disclosure include processes and systems for distilling ethylene oxide from a feed stream. The system embodiments include a heat exchanger and a distillation apparatus operably connected …

More details about Alkylene Oxide Purification Processes and Systems

Miscellaneous patent data

The patent particularly claims a process for distilling ethylene oxide from a feed stream, the process…, the exemplary patent drawings are embodiment of a system of the present, Alkylene Oxide Purification Processes and Systems, the patent grant was extended by 1050 days, the assignee location is Midland (US); its organization is Dow Technology Investments LLC, the grant number is 08845863 (publication number), invented by Clarence P. Stadlwieser et al., the invention description is illustrated by 3 drawings, the assignee classification - a United States company, the invention is named Alkylene Oxide Purification Processes and Systems, the agent - Brooks, Cameron & Huebsch, PLLC, similar patents are classified under Ethers with hydroxy compounds containing oxirane rings, dispersed adsorbents, in which the condensed system contains two hetero rings, One nitrogen atom, Nitrogen atoms, ftakes, generated by rotating vanes, discs, drums or brushes, Still feeding, Condensation of vapours, Recovering volatile solvents by condensation, Vapor-element by-pass, Hearths, Seven-membered rings, Spray cleaning, Concentric with still, to obtain dry solids, the applicant's name is Andresen Harvey E., the applicant's city - Luling, state - LA, the known inventor's name is Michael Habenschuss, the inventor's location - South Charleston, WV, the application number is 12/460,752 (U.S.), the claim 1 is exemplary as chosen by the examiner, the application publication date is Jul. 24, 2009, explained by 3 figures, categorized under With preheater as a primary classification, the protection scope is defined by 19 claims, the grant publication date is Sep. 30, 2014, an application examiner - T. Victor Oh (1622 USPTO department).

Invention classification information

The invention is classified under Ethers, Compounds having groups, groups or groups, Polyhydroxy, Purification or recovery, The hetero ring is three-membered consisting of one oxygen and two carbons, Miscellaneous Separatory, Compounds containing three-membered rings having one oxygen atom as the only ring hetero atom, With Chemical Reaction, Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping, Polyoxy, Fractional distillation, Polyhydroxylic acyclic alcohols, Separation, Purification, With preheater. The designated search classifications include Miscellaneous Separatory, Polyoxy, Polyhydroxy, Vaporization Zone Under Positive Pressure or Vacuum, The hetero ring is three-membered consisting of one oxygen and two carbons, With preheater, Purification or recovery, Including the addition of water or steam, With Chemical Reaction.

Patent details
Publication number 08845863
Publication date Sep. 30, 2014
Kind code B2
Application number 12/460,752
Application date Jul. 24, 2009
Application type U
Application series code 12
Extension term 1050
National classification 202/159
Total number of claims 19
Exemplary claims 1
Number of drawings 3
Number of figures 3
Quick navigation
More similar inventions

Coal Reforming System (US08821695, Sept. 2, 2014 / 13/405,608, Feb. 27, 2012, Thermolytic), Fumiaki Sato et al. / Mitsubishi Heavy Industries, Ltd. (Tokyo, JP)

Seawater Desalinization Device (US08623181, Jan. 7, 2014 / 12/981,524, Dec. 30, 2010, Directly heated), Zheng Shi et al. / Shenzhen Futaihong Precision Industry Co., Ltd. (Shenzhen, CN)

Multi-Phase Selective Mass Transfer Through a Membrane (US08500960, Aug. 6, 2013 / 12/523,470, Jan. 22, 2008, Still and extractor), Timothy Tangredi et al. / Dais Analytic Corporation (Odessa, US)

Also viewed with this patent

Coal Material Decomposition Apparatus With Combined Screw-Type Bins (US08834682, Sept. 16, 2014 / 13/814,103, Nov. 23, 2010, Screw), Shucheng Zhu / Xixia Dragon Into Special Material Co., Ltd. CN

Energy Conservation in Heavy-Hydrocarbon Distillation (US08840762, Sept. 23, 2014 / 12/868,223, Aug. 25, 2010, Plural columns), Jason T. Corradi et al. / UOP LLC (Des Plaines, US)

Dividing Wall Distillation Column (US08845864, Sept. 30, 2014 / 13/148,916, Feb. 12, 2010, Automatic temperature and / or pressure control), Joon Ho Shin et al. / LG Chem, Ltd. (Seoul, KR)

New documents
  • Process for the Production of the Actinobacillus Pleuropneumoniae Toxins APXI or APXIII in a Liquid Culture Medium Under Supply of Air Enriched in Carbon Dioxide
  • Method for Manufacturing Nonvolatile Memory Device
  • Supply Chain Demand Satisfaction
  • Supply-Line Management Device
  • Storage Control Device and Method for Managing Snapshot