CN1016249B - 炼厂产一种以上润滑油基础油原料的催化脱蜡方法 - Google Patents
炼厂产一种以上润滑油基础油原料的催化脱蜡方法Info
- Publication number
- CN1016249B CN1016249B CN86108258A CN86108258A CN1016249B CN 1016249 B CN1016249 B CN 1016249B CN 86108258 A CN86108258 A CN 86108258A CN 86108258 A CN86108258 A CN 86108258A CN 1016249 B CN1016249 B CN 1016249B
- Authority
- CN
- China
- Prior art keywords
- wax
- oil
- dewaxing
- lubricant base
- refinery
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
- 238000000034 method Methods 0.000 title claims abstract description 55
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 19
- 239000002199 base oil Substances 0.000 title claims abstract description 16
- 239000000314 lubricant Substances 0.000 claims abstract description 40
- 239000003054 catalyst Substances 0.000 claims abstract description 37
- 239000007789 gas Substances 0.000 claims abstract description 25
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 25
- 239000002994 raw material Substances 0.000 claims abstract description 25
- 239000001257 hydrogen Substances 0.000 claims abstract description 24
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000006243 chemical reaction Methods 0.000 claims abstract description 22
- 125000000753 cycloalkyl group Chemical group 0.000 claims abstract description 4
- 239000003921 oil Substances 0.000 claims description 66
- 239000001993 wax Substances 0.000 claims description 58
- 229930195733 hydrocarbon Natural products 0.000 claims description 18
- 150000002430 hydrocarbons Chemical class 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 18
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 17
- 239000004215 Carbon black (E152) Substances 0.000 claims description 16
- 238000005984 hydrogenation reaction Methods 0.000 claims description 14
- 229910001657 ferrierite group Inorganic materials 0.000 claims description 11
- 102000040350 B family Human genes 0.000 claims description 10
- 108091072128 B family Proteins 0.000 claims description 10
- 229910000323 aluminium silicate Inorganic materials 0.000 claims description 10
- 238000004018 waxing Methods 0.000 claims description 10
- 125000002091 cationic group Chemical class 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 230000008929 regeneration Effects 0.000 claims description 7
- 238000011069 regeneration method Methods 0.000 claims description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000012188 paraffin wax Substances 0.000 claims description 5
- 238000004821 distillation Methods 0.000 claims description 4
- 238000005194 fractionation Methods 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 230000000737 periodic effect Effects 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 3
- 230000001131 transforming effect Effects 0.000 claims 2
- 238000011010 flushing procedure Methods 0.000 claims 1
- 239000010687 lubricating oil Substances 0.000 abstract description 26
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000002585 base Substances 0.000 description 24
- 238000000638 solvent extraction Methods 0.000 description 14
- 239000002904 solvent Substances 0.000 description 12
- 239000010457 zeolite Substances 0.000 description 9
- 239000010779 crude oil Substances 0.000 description 8
- 229910052645 tectosilicate Inorganic materials 0.000 description 8
- 229910021536 Zeolite Inorganic materials 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 6
- -1 sulphur compound Chemical class 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 229910052680 mordenite Inorganic materials 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000005292 vacuum distillation Methods 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 125000004432 carbon atom Chemical group C* 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 239000002808 molecular sieve Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 241000282326 Felis catus Species 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 150000001335 aliphatic alkanes Chemical class 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical compound O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 230000009183 running Effects 0.000 description 2
- 229910052684 Cerium Inorganic materials 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 229910052776 Thorium Inorganic materials 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 150000001721 carbon Chemical group 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 239000010725 compressor oil Substances 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000012208 gear oil Substances 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 229910001510 metal chloride Inorganic materials 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 229910017464 nitrogen compound Inorganic materials 0.000 description 1
- 150000002830 nitrogen compounds Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 230000007420 reactivation Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G73/00—Recovery or refining of mineral waxes, e.g. montan wax
- C10G73/02—Recovery of petroleum waxes from hydrocarbon oils; Dewaxing of hydrocarbon oils
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G67/00—Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one process for refining in the absence of hydrogen only
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G65/00—Treatment of hydrocarbon oils by two or more hydrotreatment processes only
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G65/00—Treatment of hydrocarbon oils by two or more hydrotreatment processes only
- C10G65/14—Treatment of hydrocarbon oils by two or more hydrotreatment processes only plural parallel stages only
- C10G65/16—Treatment of hydrocarbon oils by two or more hydrotreatment processes only plural parallel stages only including only refining steps
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Catalysts (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US81321485A | 1985-12-24 | 1985-12-24 | |
| US813,214 | 1985-12-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN86108258A CN86108258A (zh) | 1987-10-28 |
| CN1016249B true CN1016249B (zh) | 1992-04-15 |
Family
ID=25211785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN86108258A Expired CN1016249B (zh) | 1985-12-24 | 1986-12-17 | 炼厂产一种以上润滑油基础油原料的催化脱蜡方法 |
Country Status (11)
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3587895T2 (de) * | 1984-05-03 | 1994-12-01 | Mobil Oil Corp | Katalytische Entwachsung von leichten und schweren Ölen in zwei Parallelreaktoren. |
| US5378348A (en) * | 1993-07-22 | 1995-01-03 | Exxon Research And Engineering Company | Distillate fuel production from Fischer-Tropsch wax |
| US5833837A (en) * | 1995-09-29 | 1998-11-10 | Chevron U.S.A. Inc. | Process for dewaxing heavy and light fractions of lube base oil with zeolite and sapo containing catalysts |
| KR970074901A (ko) * | 1996-05-14 | 1997-12-10 | 조규향 | 미전환유를 이용하여 연료유 및 윤활기유를 제조하는 방법 |
| JP2004521977A (ja) | 2001-02-13 | 2004-07-22 | シエル・インターナシヨネイル・リサーチ・マーチヤツピイ・ベー・ウイ | 潤滑剤組成物 |
| AR032932A1 (es) | 2001-03-05 | 2003-12-03 | Shell Int Research | Procedimiento para preparar un aceite de base lubricante y un gas oil |
| MY139353A (en) | 2001-03-05 | 2009-09-30 | Shell Int Research | Process to prepare a lubricating base oil and a gas oil |
| AR032941A1 (es) * | 2001-03-05 | 2003-12-03 | Shell Int Research | Un procedimiento para preparar un aceite base lubricante y aceite base obtenido, con sus diversas utilizaciones |
| AU2003242766A1 (en) | 2002-07-12 | 2004-02-02 | Shell Internationale Research Maatschappij B.V. | Process to prepare a heavy and a light lubricating base oil |
| WO2004009739A2 (en) | 2002-07-18 | 2004-01-29 | Shell Internationale Research Maatschappij B.V. | Process to prepare a microcrystalline wax and a middle distillate fuel |
| JP5221999B2 (ja) * | 2008-03-31 | 2013-06-26 | Ｊｘ日鉱日石エネルギー株式会社 | 潤滑油基油の製造方法 |
| WO2015007691A1 (en) * | 2013-07-15 | 2015-01-22 | Shell Internationale Research Maatschappij B.V. | Process to prepare two or more base oils |
| CN105378035B (zh) * | 2013-07-15 | 2019-03-08 | 国际壳牌研究有限公司 | 制备两种或更多种基础油的方法 |
| US9796936B2 (en) | 2015-09-09 | 2017-10-24 | Chevron U.S.A. Inc. | Production of heavy API group II base oil |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4211635A (en) * | 1979-04-23 | 1980-07-08 | Mobil Oil Corporation | Catalytic conversion of hydrocarbons |
| JPS57100190A (en) * | 1980-12-09 | 1982-06-22 | Mobil Oil Corp | Lube base stock and manufacture of slate thereof |
| CA1188247A (en) * | 1981-04-02 | 1985-06-04 | Nai Y. Chen | Process for making naphthenic lubestocks from raw distillate by combination hydrodewaxing/hydrogenation |
| US4400265A (en) * | 1982-04-01 | 1983-08-23 | Mobil Oil Corporation | Cascade catalytic dewaxing/hydrodewaxing process |
| DE3587895T2 (de) * | 1984-05-03 | 1994-12-01 | Mobil Oil Corp | Katalytische Entwachsung von leichten und schweren Ölen in zwei Parallelreaktoren. |
-
1986
- 1986-11-25 IN IN906/MAS/86A patent/IN168775B/en unknown
- 1986-11-25 CA CA000523708A patent/CA1282363C/en not_active Expired - Fee Related
- 1986-12-03 ES ES198686202162T patent/ES2031820T3/es not_active Expired - Lifetime
- 1986-12-03 DE DE8686202162T patent/DE3685578T2/de not_active Revoked
- 1986-12-03 EP EP86202162A patent/EP0237655B1/en not_active Expired - Lifetime
- 1986-12-17 CN CN86108258A patent/CN1016249B/zh not_active Expired
- 1986-12-17 AU AU66639/86A patent/AU592137B2/en not_active Ceased
- 1986-12-17 JP JP61299087A patent/JPS62190286A/ja active Pending
- 1986-12-17 BR BR8606234A patent/BR8606234A/pt active Search and Examination
- 1986-12-17 KR KR1019860010844A patent/KR940008389B1/ko not_active Expired - Lifetime
-
1993
- 1993-04-14 SG SG44393A patent/SG44393G/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| IN168775B (enrdf_load_stackoverflow) | 1991-06-01 |
| KR940008389B1 (ko) | 1994-09-14 |
| SG44393G (en) | 1993-06-25 |
| BR8606234A (pt) | 1987-09-29 |
| EP0237655A1 (en) | 1987-09-23 |
| AU592137B2 (en) | 1990-01-04 |
| DE3685578T2 (de) | 1993-01-21 |
| KR870006168A (ko) | 1987-07-09 |
| AU6663986A (en) | 1987-06-25 |
| ES2031820T3 (es) | 1993-01-01 |
| DE3685578D1 (de) | 1992-07-09 |
| CN86108258A (zh) | 1987-10-28 |
| CA1282363C (en) | 1991-04-02 |
| EP0237655B1 (en) | 1992-06-03 |
| JPS62190286A (ja) | 1987-08-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1092786A (en) | Method for increasing the purity of hydrogen recycle gas | |
| CN1016249B (zh) | 炼厂产一种以上润滑油基础油原料的催化脱蜡方法 | |
| Marcilly | Evolution of refining and petrochemicals. What is the place of zeolites | |
| EP2838979B1 (en) | Process for purification of biological feed material | |
| EP0799882B1 (en) | Process for converting wax-containing hydrocarbon feedstocks into high-grade middle distillate products | |
| US4911822A (en) | Combined hydroreforming-hydroisomerization process | |
| US5246568A (en) | Catalytic dewaxing process | |
| CN1218094A (zh) | 一种制备润滑油基础油的方法 | |
| US4997543A (en) | Reduction of benzene in gasoline | |
| EP0794241A2 (en) | Process for dearomatization of petroleum distillates | |
| US4169040A (en) | Staged process for the production of middle distillate from a heavy distillate | |
| CN112322343B (zh) | Mtp副产混合芳烃改质生产高芳烃含量汽油的方法和装置、高芳烃含量汽油及其应用 | |
| RU2556218C1 (ru) | Способ и установка для извлечения гидрообработанных углеводородов с использованием двух отпарных колонн | |
| AU2002211876B2 (en) | Two stage hydroprocessing and stripping in a single reaction vessel | |
| JP2003027071A (ja) | ２原料油の同時水素処理方法 | |
| EP0067020B1 (en) | Hydrostripping process of crude oil | |
| AU2002211876A1 (en) | Two stage hydroprocessing and stripping in a single reaction vessel | |
| US4810356A (en) | Process for treating gas oils | |
| WO2003031012A1 (en) | Modular oil refinery | |
| US5015359A (en) | Hydrodewaxing method with interstate recovery of olefin | |
| RU2224784C2 (ru) | Способ получения водорода и гидроочищенного продукта из углеводородного сырья | |
| KR20230173196A (ko) | 나프타 극대화를 위한 수첨분해 방법 | |
| CN114736090A (zh) | 一种制对二甲苯的方法和系统 | |
| CN1488731A (zh) | 一种提高精制柴油质量的加氢裂化方法 | |
| CN1478866A (zh) | 一种汽油脱硫的方法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |