SG11201600536WA - Regeneration of a titanium containing zeolite - Google Patents

Regeneration of a titanium containing zeolite

Info

Publication number
SG11201600536WA
SG11201600536WA SG11201600536WA SG11201600536WA SG11201600536WA SG 11201600536W A SG11201600536W A SG 11201600536WA SG 11201600536W A SG11201600536W A SG 11201600536WA SG 11201600536W A SG11201600536W A SG 11201600536WA SG 11201600536W A SG11201600536W A SG 11201600536WA
Authority
SG
Singapore
Prior art keywords
regeneration
containing zeolite
titanium containing
titanium
zeolite
Prior art date
Application number
SG11201600536WA
Inventor
Andrei-Nicolae Parvulescu
Ulrich Müller
Joaquim Henrique Teles
Bianca Seelig
Philip Kampe
Markus Weber
Peter Resch
Christian Bartosch
Dominic Riedel
Daniel Urbanczyk
Alexander Schröder
Ulrike Wegerle
Original Assignee
Basf Se
Dow Global Technologies Llc
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 Basf Se, Dow Global Technologies Llc filed Critical Basf Se
Publication of SG11201600536WA publication Critical patent/SG11201600536WA/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J29/00Catalysts comprising molecular sieves
    • B01J29/90Regeneration or reactivation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J29/00Catalysts comprising molecular sieves
    • B01J29/04Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/70Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
    • B01J29/7049Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65 containing rare earth elements, titanium, zirconium, hafnium, zinc, cadmium, mercury, gallium, indium, thallium, tin or lead
    • B01J29/7088MWW-type, e.g. MCM-22, ERB-1, ITQ-1, PSH-3 or SSZ-25
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J29/00Catalysts comprising molecular sieves
    • B01J29/89Silicates, aluminosilicates or borosilicates of titanium, zirconium or hafnium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/0009Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/0009Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
    • B01J37/0027Powdering
    • B01J37/0045Drying a slurry, e.g. spray drying
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02Impregnation, coating or precipitation
    • B01J37/0201Impregnation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02Impregnation, coating or precipitation
    • B01J37/0201Impregnation
    • B01J37/0203Impregnation the impregnation liquid containing organic compounds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/06Washing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/08Heat treatment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/08Heat treatment
    • B01J37/10Heat treatment in the presence of water, e.g. steam
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/30Ion-exchange
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J38/00Regeneration or reactivation of catalysts, in general
    • B01J38/02Heat treatment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J38/00Regeneration or reactivation of catalysts, in general
    • B01J38/04Gas or vapour treating; Treating by using liquids vaporisable upon contacting spent catalyst
    • B01J38/06Gas or vapour treating; Treating by using liquids vaporisable upon contacting spent catalyst using steam
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J38/00Regeneration or reactivation of catalysts, in general
    • B01J38/48Liquid treating or treating in liquid phase, e.g. dissolved or suspended
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D301/00Preparation of oxiranes
    • C07D301/02Synthesis of the oxirane ring
    • C07D301/03Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds
    • C07D301/12Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with hydrogen peroxide or inorganic peroxides or peracids
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D303/00Compounds containing three-membered rings having one oxygen atom as the only ring hetero atom
    • C07D303/02Compounds containing oxirane rings
    • C07D303/04Compounds containing oxirane rings containing only hydrogen and carbon atoms in addition to the ring oxygen atoms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2229/00Aspects of molecular sieve catalysts not covered by B01J29/00
    • B01J2229/10After treatment, characterised by the effect to be obtained
    • B01J2229/18After treatment, characterised by the effect to be obtained to introduce other elements into or onto the molecular sieve itself
    • B01J2229/183After treatment, characterised by the effect to be obtained to introduce other elements into or onto the molecular sieve itself in framework positions
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2229/00Aspects of molecular sieve catalysts not covered by B01J29/00
    • B01J2229/10After treatment, characterised by the effect to be obtained
    • B01J2229/18After treatment, characterised by the effect to be obtained to introduce other elements into or onto the molecular sieve itself
    • B01J2229/186After treatment, characterised by the effect to be obtained to introduce other elements into or onto the molecular sieve itself not in framework positions
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2229/00Aspects of molecular sieve catalysts not covered by B01J29/00
    • B01J2229/30After treatment, characterised by the means used
    • B01J2229/42Addition of matrix or binder particles
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/50Improvements relating to the production of bulk chemicals
    • Y02P20/584Recycling of catalysts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Catalysts (AREA)
  • Epoxy Compounds (AREA)
SG11201600536WA 2013-07-24 2014-07-16 Regeneration of a titanium containing zeolite SG11201600536WA (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP13177916 2013-07-24
PCT/EP2014/065256 WO2015010994A1 (en) 2013-07-24 2014-07-16 Regeneration of a titanium containing zeolite

Publications (1)

Publication Number Publication Date
SG11201600536WA true SG11201600536WA (en) 2016-02-26

Family

ID=48832828

Family Applications (2)

Application Number Title Priority Date Filing Date
SG10201803792UA SG10201803792UA (en) 2013-07-24 2014-07-16 Regeneration of a titanium containing zeolite
SG11201600536WA SG11201600536WA (en) 2013-07-24 2014-07-16 Regeneration of a titanium containing zeolite

Family Applications Before (1)

Application Number Title Priority Date Filing Date
SG10201803792UA SG10201803792UA (en) 2013-07-24 2014-07-16 Regeneration of a titanium containing zeolite

Country Status (12)

Country Link
US (1) US9943838B2 (en)
EP (1) EP3024581B1 (en)
JP (1) JP6581577B2 (en)
KR (1) KR102254371B1 (en)
CN (1) CN105579138B (en)
BR (1) BR112016001518B1 (en)
MX (1) MX2016001031A (en)
MY (1) MY182811A (en)
RU (1) RU2673798C9 (en)
SG (2) SG10201803792UA (en)
WO (1) WO2015010994A1 (en)
ZA (1) ZA201601175B (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2767100T3 (en) * 2014-07-29 2020-06-16 Evonik Operations Gmbh Procedure for the epoxidation of an olefin
PL3206756T3 (en) 2014-10-14 2019-06-28 Basf Se Use of hexadeca-8,15-dienal as an aroma chemical
WO2016128917A1 (en) 2015-02-12 2016-08-18 Basf Se Process for the preparation of a dealuminated zeolitic material having the bea framework structure
RU2702349C2 (en) * 2015-02-13 2019-10-08 Басф Се Method of regenerating catalyst based on titanium-containing zeolite for epoxidation of propylene
US10195598B2 (en) 2015-02-13 2019-02-05 Basf Se Process for the regeneration of a titanium zeolite catalyst for propylene epoxidation
US10202324B2 (en) 2015-05-04 2019-02-12 Basf Se Process for the preparation of melonal
RU2018105604A (en) 2015-07-15 2019-08-15 Басф Се METHOD FOR PRODUCING ARILPROPEN
WO2017009458A1 (en) 2015-07-15 2017-01-19 Basf Se Process for preparing an arylpropene
EP3325457B1 (en) 2015-07-22 2020-01-01 Basf Se Process for preparing furan-2,5-dicarboxylic acid
ES2789751T3 (en) * 2015-12-16 2020-10-26 Basf Se Process for the epoxidation of propene to propylene oxide
JP2019194283A (en) * 2018-05-01 2019-11-07 旭化成株式会社 Polyelectrolyte solution and polyelectrolyte membrane
US11413605B2 (en) * 2019-08-28 2022-08-16 King Fahd University Of Petroleum And Minerals Molybdenum based catalyst supported on titania-modified zeolite
EP3812375A1 (en) * 2019-10-21 2021-04-28 Evonik Operations GmbH Process for the epoxidation of propene
JP7327758B2 (en) * 2019-10-29 2023-08-16 株式会社ダイセル Method for producing epoxy compound
WO2021191135A1 (en) * 2020-03-23 2021-09-30 Basf Se Zeolitic material having a framework structure comprising si, o, and ti
CN113877625B (en) * 2020-07-01 2023-10-31 中国石油化工股份有限公司 Method for regenerating molecular sieve catalyst and application thereof
CN114425456B (en) * 2020-10-09 2023-10-31 中国石油化工股份有限公司 Regeneration method and application of olefin reduction catalyst
CN113333034A (en) * 2021-04-13 2021-09-03 青岛科技大学 Regeneration method and application of chloro-nitro-aromatic selective hydrogenation catalyst
CN113333033A (en) * 2021-04-13 2021-09-03 青岛科技大学 Regeneration method and application of supported ketoamine reduction alkylation catalyst
CN115196652A (en) * 2022-08-04 2022-10-18 南京工业大学 Titanium-containing zeolite nanosheet for olefin oxidation and preparation method thereof
CN115448323B (en) * 2022-10-26 2024-02-20 河北农业大学 Tin-silicon molecular sieve and preparation method and application thereof

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1518338A (en) * 1974-11-18 1978-07-19 Degussa Process for separating epoxidation and hydroxylation catalysts from distillation residues
DE3143874C2 (en) 1981-11-05 1988-12-22 PTG Plasma-Oberflächentechnik GmbH, 7240 Horb Method for coating a workpiece with a coating made of hard material
US5646314A (en) * 1994-11-16 1997-07-08 Arco Chemical Technology, L.P. Process for titanium silicalite-catalyzed epoxidation
BR9601849A (en) * 1996-06-18 1998-09-01 Newton Paes Improvement in double-way catheter for washing drainage monitoring and control of intracranial pressure
BE1010716A3 (en) 1996-10-25 1998-12-01 Solvay PROCESS FOR REGENERATION OF CATALYST TYPE titanium silicalite.
US5916835A (en) * 1996-12-20 1999-06-29 Arco Chemical Technology, L.P. Heterogeneous catalyst regeneration
DE19723751A1 (en) 1997-06-06 1998-12-10 Basf Ag Shaped body and process for its production
JPH114883A (en) * 1997-06-18 1999-01-12 Toray Ind Inc Anti-thrombogenic medical material
US6562837B1 (en) * 1998-10-21 2003-05-13 Korea Institute Of Science & Technology Use of tetrahydroisoquinoline compounds for the treatment of septicemia
US6114551A (en) 1999-10-04 2000-09-05 Mobil Oil Corporation Olefin epoxidation catalysts
EP1122249A1 (en) 2000-02-02 2001-08-08 SOLVAY (Société Anonyme) Process for producing oxiranes
DE10044788A1 (en) * 2000-09-11 2002-04-04 Basf Ag Process for the regeneration of a zeolite catalyst
DE10044787A1 (en) 2000-09-11 2002-04-04 Basf Ag Process for making an epoxy
DE50115570D1 (en) 2001-01-08 2010-09-09 Evonik Degussa Gmbh Process for the epoxidation of olefins
JP4265108B2 (en) 2001-03-14 2009-05-20 住友化学株式会社 Method for regenerating solid catalyst
US6872679B2 (en) 2002-09-20 2005-03-29 Arco Chemical Technology, L.P. Heterogeneous catalyst regeneration
DE10320635A1 (en) 2003-05-08 2004-11-18 Basf Ag Process for the production of propylene oxide
EP1489074A1 (en) 2003-06-18 2004-12-22 Degussa AG Process for the epoxidation of propene
US7256149B2 (en) * 2004-02-24 2007-08-14 Lyondell Chemical Technology, L.P. Catalyst regeneration process
US20050277542A1 (en) * 2004-06-14 2005-12-15 Kaminsky Mark P Catalyst regeneration process
KR101239579B1 (en) * 2005-01-14 2013-03-05 다우 글로벌 테크놀로지스 엘엘씨 Reclamation of a titanosilicate, and reconstitution of an active oxidation catalyst
KR101166932B1 (en) 2005-07-27 2012-07-19 에스케이이노베이션 주식회사 Methods for the Regeneration of Titanium-containing Molecular Sieve Catalysts
JP2008200553A (en) * 2007-02-16 2008-09-04 Sumitomo Chemical Co Ltd Titanosilicate catalyst
JP2009233656A (en) * 2008-03-05 2009-10-15 Sumitomo Chemical Co Ltd Method for regenerating titanosilicate catalyst
CN102740968B (en) * 2009-11-27 2015-07-01 巴斯夫欧洲公司 Process for the preparation of a titanium zeolite catalyst
US20130005999A1 (en) 2010-03-18 2013-01-03 Sumitomo Chemical Company, Limited Method for regenerating titanosilicate catalysts
US8785670B2 (en) * 2010-12-07 2014-07-22 Basf Se Process for the production of propylene oxide

Also Published As

Publication number Publication date
MY182811A (en) 2021-02-05
ZA201601175B (en) 2023-09-27
RU2673798C9 (en) 2019-04-08
BR112016001518B1 (en) 2020-12-29
CN105579138B (en) 2019-07-05
KR20160039223A (en) 2016-04-08
BR112016001518A2 (en) 2019-12-17
SG10201803792UA (en) 2018-06-28
US9943838B2 (en) 2018-04-17
EP3024581A1 (en) 2016-06-01
KR102254371B1 (en) 2021-05-24
US20160332152A1 (en) 2016-11-17
JP6581577B2 (en) 2019-09-25
JP2016525446A (en) 2016-08-25
EP3024581B1 (en) 2023-11-15
CN105579138A (en) 2016-05-11
WO2015010994A1 (en) 2015-01-29
MX2016001031A (en) 2016-11-10
RU2673798C2 (en) 2018-11-30
RU2016105804A (en) 2017-08-28
RU2016105804A3 (en) 2018-05-08

Similar Documents

Publication Publication Date Title
SG11201600536WA (en) Regeneration of a titanium containing zeolite
GB2521909B (en) AEI zeolite synthesis
EP3020688A4 (en) Zeolite production method
PL2817448T3 (en) Regeneration of cellulose
PL2810198T3 (en) Anti-invasive compounds
GB201307577D0 (en) New compounds
HK1216429A1 (en) Methods for purification of rylsulfatase
EP2915577A4 (en) Zeolite membrane regeneration method
GB201304526D0 (en) New compounds
EP2941173A4 (en) Dishwashing of tablewater bottles
SG11201600896VA (en) Zeolite material made from mesoporous zeolite
EP3068512A4 (en) Cartridge filter
HK1219071A1 (en) New compounds
SG11201503985SA (en) Uzm-44 aluminosilicate zeolite
SG11201600719SA (en) Zeolite ssz-70 having enhanced external surface area
HK1213884A1 (en) New anti-invasive compounds
EP2935104A4 (en) Uzm-43 an euo-nes-non zeolite
SG11201506527SA (en) Zeolite ssz-57 having enhanced large pore selectivity
EP2947049A4 (en) Process for producing vet-type zeolite
EP3089820A4 (en) Zeolite regeneration
PL2857081T3 (en) Disc filter
GB201314581D0 (en) Purification
GB201802564D0 (en) AEI zeolite synthesis
GB201312459D0 (en) A New Design of a Toothbrush
HK1188676A2 (en) A kind of teapot partition