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Oxygen-selective adsorbent having fast adsorption rate and preparation method thereof

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Title: Oxygen-selective adsorbent having fast adsorption rate and preparation method thereof
Patent Number: 9,192,911
Publication Date: November 24, 2015
Appl. No: 13/980094
Application Filed: January 26, 2012
Abstract: Provided is a preparation method of an oxygen-selective adsorbent selectively adsorbing oxygen in the air and an oxygen-selective adsorbent prepared thereby. The preparation method includes: preparing BaMg(CO3)2 particles or particles in which MgCO3 or Mg(OH)2 are attached to the outside of BaMg(CO3)2; and sintering the particles at a high temperature. The oxygen-selective adsorbent according to the present invention may adsorb oxygen in the air at a fast rate as compared with an existing oxygen-selective adsorbent and have high thermal stability and excellent oxygen adsorptivity.
Inventors: Park, Jong Ho (Daejeon, KR); Yi, Kwang Bok (Daejeon, KR); Kim, Jong Nam (Daejeon, KR); Beum, Hee Tae (Daejeon, KR); Park, Jong Kee (Daejeon, KR); Ko, Chang Hyun (Daejeon, KR); Han, Sang Sup (Daejeon, KR); Cho, Soon Haeng (Daejeon, KR); Jung, Taesung (Daejeon, KR)
Assignees: KOREA INSTITUTE OF ENERGY RESEARCH (Daejeon, KR)
Claim: 1. A preparation method of an oxygen-selective adsorbent selectively adsorbing oxygen in the air, the preparation method comprising: preparing BaMg(CO 3) 2 particles or particles in which MgCO 3 or Mg(OH) 2 are attached to the outside of BaMg(CO 3) 2 ; and sintering the particles at 700 to 800° C. under hydrogen atmosphere.
Claim: 2. The preparation method of claim 1 , wherein in the particles in which MgCO 3 or Mg(OH) 2 are attached to the outside of BaMg (CO 3) MgCO 3 or Mg(OH) 2 are attached to the outside of BaMg(CO 3) 2 at a molar ratio of 1to 10based on BaMg(CO 3) 2 .
Claim: 3. The preparation method of claim 1 , wherein the BaMg(CO 3) 2 particles are prepared by dispersing a mixture of a compound containing barium and carbonate in distilled water and adding a magnesium carbonate precursor thereto.
Claim: 4. The preparation method of claim 3 , wherein the compound containing barium is BaCO 3 or BaCl 2 .
Claim: 5. The preparation method of claim 3 , wherein the carbonate is Na 2 CO 3 .
Claim: 6. The preparation method of claim 3 , wherein the magnesium carbonate precursor is Mg(NO 3) 2 ·6H 2 O or MgCO 3 ·3H 2 O.
Claim: 7. The preparation method of claim 1 , wherein the particles in which MgCO 3 or Mg(OH) 2 are attached to the outside of BaMg(CO 3) 2 , are prepared by dispersing a mixture of a compound containing barium and carbonate in distilled water, adding a magnesium carbonate precursor thereto to obtain particles, filtering and washing the obtained particles, dispersing the washed particles in distilled water again, adding the magnesium carbonate precursor thereto, performing a ultrasonic treatment, and then adding aqueous ammonia thereto.
Claim: 8. The preparation method of claim 7 , wherein the compound containing barium is BaCO 3 or BaCl 2 .
Claim: 9. The preparation method of claim 7 , wherein carbonate is Na 2 CO 3 .
Claim: 10. The preparation method of claim 7 , wherein the magnesium carbonate precursor is Mg(NO 3) 2 ·6H 2 O or MgCO 3 .3H 2 3 ·3H 2 O.
Patent References Cited: 3324654 June 1967 Squires
5135548 August 1992 Golden et al.
5478543 December 1995 Murota et al.
5536302 July 1996 Golden et al.
10-085589 April 1998
Other References: Smykatz-Kloss, W. “Differential Thermal Analysis: Application and Results in Mineralogy” (1974). cited by examiner
Bottcher et al. “The vibrational spectra of BaMg(CO3)2 (norsethite)” Mineralogical Magazine, Apr. 1997, vol. 61, pp. 249-256. cited by examiner
Primary Examiner: Godenschwager, Peter F
Attorney, Agent or Firm: Sughrue Mion, PLLC
Accession Number: edspgr.09192911
Database: USPTO Patent Grants
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Oxygen-selective adsorbent having fast adsorption rate and preparation method thereof
– Name: DocumentID
  Label: Patent Number
  Group: Patent
  Data: 9,192,911
– Name: DateEntry
  Label: Publication Date
  Group: Patent
  Data: November 24, 2015
– Name: DocumentID
  Label: Appl. No
  Group: Patent
  Data: 13/980094
– Name: DateFiled
  Label: Application Filed
  Group: Patent
  Data: January 26, 2012
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Provided is a preparation method of an oxygen-selective adsorbent selectively adsorbing oxygen in the air and an oxygen-selective adsorbent prepared thereby. The preparation method includes: preparing BaMg(CO3)2 particles or particles in which MgCO3 or Mg(OH)2 are attached to the outside of BaMg(CO3)2; and sintering the particles at a high temperature. The oxygen-selective adsorbent according to the present invention may adsorb oxygen in the air at a fast rate as compared with an existing oxygen-selective adsorbent and have high thermal stability and excellent oxygen adsorptivity.
– Name: Author
  Label: Inventors
  Group: Patent
  Data: <searchLink fieldCode="ZA" term="%22Park%2C+Jong+Ho%22">Park, Jong Ho</searchLink> (Daejeon, KR); <searchLink fieldCode="ZA" term="%22Yi%2C+Kwang+Bok%22">Yi, Kwang Bok</searchLink> (Daejeon, KR); <searchLink fieldCode="ZA" term="%22Kim%2C+Jong+Nam%22">Kim, Jong Nam</searchLink> (Daejeon, KR); <searchLink fieldCode="ZA" term="%22Beum%2C+Hee+Tae%22">Beum, Hee Tae</searchLink> (Daejeon, KR); <searchLink fieldCode="ZA" term="%22Park%2C+Jong+Kee%22">Park, Jong Kee</searchLink> (Daejeon, KR); <searchLink fieldCode="ZA" term="%22Ko%2C+Chang+Hyun%22">Ko, Chang Hyun</searchLink> (Daejeon, KR); <searchLink fieldCode="ZA" term="%22Han%2C+Sang+Sup%22">Han, Sang Sup</searchLink> (Daejeon, KR); <searchLink fieldCode="ZA" term="%22Cho%2C+Soon+Haeng%22">Cho, Soon Haeng</searchLink> (Daejeon, KR); <searchLink fieldCode="ZA" term="%22Jung%2C+Taesung%22">Jung, Taesung</searchLink> (Daejeon, KR)
– Name: OtherAuthors
  Label: Assignees
  Group: Patent
  Data: <searchLink fieldCode="ZS" term="%22KOREA+INSTITUTE+OF+ENERGY+RESEARCH%22">KOREA INSTITUTE OF ENERGY RESEARCH</searchLink> (Daejeon, KR)
– Name: Comment
  Label: Claim
  Group: Patent
  Data: 1. A preparation method of an oxygen-selective adsorbent selectively adsorbing oxygen in the air, the preparation method comprising: preparing BaMg(CO 3) 2 particles or particles in which MgCO 3 or Mg(OH) 2 are attached to the outside of BaMg(CO 3) 2 ; and sintering the particles at 700 to 800° C. under hydrogen atmosphere.
– Name: Comment
  Label: Claim
  Group: Patent
  Data: 2. The preparation method of claim 1 , wherein in the particles in which MgCO 3 or Mg(OH) 2 are attached to the outside of BaMg (CO 3) MgCO 3 or Mg(OH) 2 are attached to the outside of BaMg(CO 3) 2 at a molar ratio of 1to 10based on BaMg(CO 3) 2 .
– Name: Comment
  Label: Claim
  Group: Patent
  Data: 3. The preparation method of claim 1 , wherein the BaMg(CO 3) 2 particles are prepared by dispersing a mixture of a compound containing barium and carbonate in distilled water and adding a magnesium carbonate precursor thereto.
– Name: Comment
  Label: Claim
  Group: Patent
  Data: 4. The preparation method of claim 3 , wherein the compound containing barium is BaCO 3 or BaCl 2 .
– Name: Comment
  Label: Claim
  Group: Patent
  Data: 5. The preparation method of claim 3 , wherein the carbonate is Na 2 CO 3 .
– Name: Comment
  Label: Claim
  Group: Patent
  Data: 6. The preparation method of claim 3 , wherein the magnesium carbonate precursor is Mg(NO 3) 2 ·6H 2 O or MgCO 3 ·3H 2 O.
– Name: Comment
  Label: Claim
  Group: Patent
  Data: 7. The preparation method of claim 1 , wherein the particles in which MgCO 3 or Mg(OH) 2 are attached to the outside of BaMg(CO 3) 2 , are prepared by dispersing a mixture of a compound containing barium and carbonate in distilled water, adding a magnesium carbonate precursor thereto to obtain particles, filtering and washing the obtained particles, dispersing the washed particles in distilled water again, adding the magnesium carbonate precursor thereto, performing a ultrasonic treatment, and then adding aqueous ammonia thereto.
– Name: Comment
  Label: Claim
  Group: Patent
  Data: 8. The preparation method of claim 7 , wherein the compound containing barium is BaCO 3 or BaCl 2 .
– Name: Comment
  Label: Claim
  Group: Patent
  Data: 9. The preparation method of claim 7 , wherein carbonate is Na 2 CO 3 .
– Name: Comment
  Label: Claim
  Group: Patent
  Data: 10. The preparation method of claim 7 , wherein the magnesium carbonate precursor is Mg(NO 3) 2 ·6H 2 O or MgCO 3 .3H 2 3 ·3H 2 O.
– Name: Ref
  Label: Patent References Cited
  Group: Patent
  Data: 3324654 June 1967 Squires<br /><searchLink fieldCode="RF" term="%225135548%22">5135548</searchLink> August 1992 Golden et al.<br /><searchLink fieldCode="RF" term="%225478543%22">5478543</searchLink> December 1995 Murota et al.<br /><searchLink fieldCode="RF" term="%225536302%22">5536302</searchLink> July 1996 Golden et al.<br /><searchLink fieldCode="RF" term="%2210%2E085589%22">10-085589</searchLink> April 1998<br /><br />
– Name: Ref
  Label: Other References
  Group: Patent
  Data: Smykatz-Kloss, W. “Differential Thermal Analysis: Application and Results in Mineralogy” (1974). cited by examiner<br />Bottcher et al. “The vibrational spectra of BaMg(CO3)2 (norsethite)” Mineralogical Magazine, Apr. 1997, vol. 61, pp. 249-256. cited by examiner
– Name: AuthorEditor
  Label: Primary Examiner
  Group: Patent
  Data: <searchLink fieldCode="ZE" term="%22Godenschwager%2C+Peter+F%22">Godenschwager, Peter F</searchLink>
– Name: AuthorCorporate
  Label: Attorney, Agent or Firm
  Group: Patent
  Data: <searchLink fieldCode="ZG" term="%22Sughrue+Mion%2C+PLLC%22">Sughrue Mion, PLLC</searchLink>
– Name: AN
  Label: Accession Number
  Group: ID
  Data: edspgr.09192911
PLink https://login.libproxy.scu.edu/login?url=https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&scope=site&db=edspgr&AN=edspgr.09192911
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      – Text: English
    Titles:
      – TitleFull: Oxygen-selective adsorbent having fast adsorption rate and preparation method thereof
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            – D: 24
              M: 11
              Text: November 24, 2015
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