CN101219975B - 甲基磺酸的一种制备方法 - Google Patents
甲基磺酸的一种制备方法 Download PDFInfo
- Publication number
- CN101219975B CN101219975B CN2007100000800A CN200710000080A CN101219975B CN 101219975 B CN101219975 B CN 101219975B CN 2007100000800 A CN2007100000800 A CN 2007100000800A CN 200710000080 A CN200710000080 A CN 200710000080A CN 101219975 B CN101219975 B CN 101219975B
- Authority
- CN
- China
- Prior art keywords
- solution
- sulfate
- acid
- reaction
- liquor
- 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 - Fee Related
Links
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 43
- 229940098779 methanesulfonic acid Drugs 0.000 title abstract 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 57
- 238000006243 chemical reaction Methods 0.000 claims abstract description 42
- 238000004821 distillation Methods 0.000 claims abstract description 15
- 239000002253 acid Substances 0.000 claims abstract description 14
- 238000002360 preparation method Methods 0.000 claims abstract description 14
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims abstract description 13
- 238000001914 filtration Methods 0.000 claims abstract description 13
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract description 11
- 239000007789 gas Substances 0.000 claims abstract description 11
- 150000003839 salts Chemical class 0.000 claims abstract description 10
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 239000000243 solution Substances 0.000 claims description 63
- DPDMMXDBJGCCQC-UHFFFAOYSA-N [Na].[Cl] Chemical compound [Na].[Cl] DPDMMXDBJGCCQC-UHFFFAOYSA-N 0.000 claims description 23
- JZMJDSHXVKJFKW-UHFFFAOYSA-M methyl sulfate(1-) Chemical compound COS([O-])(=O)=O JZMJDSHXVKJFKW-UHFFFAOYSA-M 0.000 claims description 18
- 239000007864 aqueous solution Substances 0.000 claims description 11
- -1 alkali metal sulfite Chemical class 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000001556 precipitation Methods 0.000 claims description 9
- 229910052783 alkali metal Inorganic materials 0.000 claims description 8
- 238000004458 analytical method Methods 0.000 claims description 6
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 5
- 239000001110 calcium chloride Substances 0.000 claims description 5
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 5
- 150000005451 methyl sulfates Chemical class 0.000 claims description 5
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 claims description 5
- 238000005660 chlorination reaction Methods 0.000 claims description 4
- 239000013078 crystal Substances 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 239000012452 mother liquor Substances 0.000 claims description 4
- 239000011734 sodium Substances 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 3
- 230000035484 reaction time Effects 0.000 claims description 3
- 229950000081 metilsulfate Drugs 0.000 claims description 2
- 235000014347 soups Nutrition 0.000 claims description 2
- 229910021653 sulphate ion Inorganic materials 0.000 claims description 2
- 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 claims 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims 1
- 229910001514 alkali metal chloride Inorganic materials 0.000 claims 1
- 229910052728 basic metal Inorganic materials 0.000 claims 1
- 239000012141 concentrate Substances 0.000 claims 1
- 238000007033 dehydrochlorination reaction Methods 0.000 claims 1
- GRWZHXKQBITJKP-UHFFFAOYSA-N dithionous acid Chemical compound OS(=O)S(O)=O GRWZHXKQBITJKP-UHFFFAOYSA-N 0.000 claims 1
- 238000001640 fractional crystallisation Methods 0.000 claims 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims 1
- 229910052700 potassium Inorganic materials 0.000 claims 1
- 239000011591 potassium Substances 0.000 claims 1
- 239000011833 salt mixture Substances 0.000 claims 1
- 229910052708 sodium Inorganic materials 0.000 claims 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 abstract description 22
- 229910000041 hydrogen chloride Inorganic materials 0.000 abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 238000002425 crystallisation Methods 0.000 abstract description 5
- 230000008025 crystallization Effects 0.000 abstract description 5
- 238000001704 evaporation Methods 0.000 abstract description 5
- 230000008020 evaporation Effects 0.000 abstract description 5
- 239000008247 solid mixture Substances 0.000 abstract description 4
- 239000002244 precipitate Substances 0.000 abstract description 3
- 239000011780 sodium chloride Substances 0.000 abstract description 3
- AFVFQIVMOAPDHO-UHFFFAOYSA-M Methanesulfonate Chemical compound CS([O-])(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-M 0.000 abstract 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 abstract 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 abstract 1
- VAYGXNSJCAHWJZ-UHFFFAOYSA-N dimethyl sulfate Chemical compound COS(=O)(=O)OC VAYGXNSJCAHWJZ-UHFFFAOYSA-N 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 238000005185 salting out Methods 0.000 abstract 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 abstract 1
- 238000005292 vacuum distillation Methods 0.000 abstract 1
- DJGAAPFSPWAYTJ-UHFFFAOYSA-M metamizole sodium Chemical compound [Na+].O=C1C(N(CS([O-])(=O)=O)C)=C(C)N(C)N1C1=CC=CC=C1 DJGAAPFSPWAYTJ-UHFFFAOYSA-M 0.000 description 21
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 20
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 18
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 13
- 239000000047 product Substances 0.000 description 13
- 229910052938 sodium sulfate Inorganic materials 0.000 description 13
- 235000011152 sodium sulphate Nutrition 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 239000007788 liquid Substances 0.000 description 9
- 229920006395 saturated elastomer Polymers 0.000 description 9
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 8
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 7
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 7
- 238000003756 stirring Methods 0.000 description 7
- 239000002994 raw material Substances 0.000 description 6
- 229910001415 sodium ion Inorganic materials 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 239000012359 Methanesulfonyl chloride Substances 0.000 description 4
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 4
- 239000006227 byproduct Substances 0.000 description 4
- 239000000460 chlorine Substances 0.000 description 4
- DWNWZFAKFWMPTI-UHFFFAOYSA-N methanesulfonic acid;sodium Chemical compound [Na].CS(O)(=O)=O DWNWZFAKFWMPTI-UHFFFAOYSA-N 0.000 description 4
- QARBMVPHQWIHKH-UHFFFAOYSA-N methanesulfonyl chloride Chemical compound CS(Cl)(=O)=O QARBMVPHQWIHKH-UHFFFAOYSA-N 0.000 description 4
- 239000011541 reaction mixture Substances 0.000 description 4
- 229910052712 strontium Inorganic materials 0.000 description 4
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 239000005864 Sulphur Substances 0.000 description 3
- 229910052788 barium Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 239000000706 filtrate Substances 0.000 description 3
- 230000007062 hydrolysis Effects 0.000 description 3
- 238000006460 hydrolysis reaction Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000007086 side reaction Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 159000000009 barium salts Chemical class 0.000 description 2
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 description 2
- 159000000007 calcium salts Chemical class 0.000 description 2
- KWUXWMAPDYIJDD-UHFFFAOYSA-N calcium;methanesulfonic acid Chemical compound [Ca].CS(O)(=O)=O KWUXWMAPDYIJDD-UHFFFAOYSA-N 0.000 description 2
- WQOXQRCZOLPYPM-UHFFFAOYSA-N dimethyl disulfide Chemical compound CSSC WQOXQRCZOLPYPM-UHFFFAOYSA-N 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 159000000008 strontium salts Chemical class 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 239000003039 volatile agent Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- XRFHUCOWVLITDH-UHFFFAOYSA-N CSC#N.CSC#N Chemical compound CSC#N.CSC#N XRFHUCOWVLITDH-UHFFFAOYSA-N 0.000 description 1
- 241000370738 Chlorion Species 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- PQUCIEFHOVEZAU-UHFFFAOYSA-N Diammonium sulfite Chemical compound [NH4+].[NH4+].[O-]S([O-])=O PQUCIEFHOVEZAU-UHFFFAOYSA-N 0.000 description 1
- 206010020852 Hypertonia Diseases 0.000 description 1
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 238000000247 postprecipitation Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000006277 sulfonation reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- ZNRSXPDDVNZGEN-UHFFFAOYSA-K trisodium;chloride;sulfate Chemical compound [Na+].[Na+].[Na+].[Cl-].[O-]S([O-])(=O)=O ZNRSXPDDVNZGEN-UHFFFAOYSA-K 0.000 description 1
Abstract
Description
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2007100000800A CN101219975B (zh) | 2007-01-10 | 2007-01-10 | 甲基磺酸的一种制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2007100000800A CN101219975B (zh) | 2007-01-10 | 2007-01-10 | 甲基磺酸的一种制备方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101219975A CN101219975A (zh) | 2008-07-16 |
CN101219975B true CN101219975B (zh) | 2010-07-21 |
Family
ID=39630091
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2007100000800A Expired - Fee Related CN101219975B (zh) | 2007-01-10 | 2007-01-10 | 甲基磺酸的一种制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN101219975B (zh) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101698653B (zh) * | 2009-10-30 | 2013-09-04 | 衢州中科精细化学有限公司 | 一种制备高纯度甲基磺酸的工艺 |
CN101875623A (zh) * | 2009-11-17 | 2010-11-03 | 武汉工业学院 | 一种用卤代甲烷制备甲基磺酸的方法 |
CN105237441B (zh) * | 2015-11-02 | 2017-06-13 | 中国石油天然气股份有限公司 | 一种回收甲烷磺酸的装置和方法 |
CN105367791B (zh) * | 2015-11-04 | 2017-08-25 | 华东理工大学 | 吡咯并吡咯二酮类多孔有机聚合物及其合成方法和用途 |
BR112018009327A8 (pt) * | 2015-11-10 | 2019-02-26 | Basf Se | ?processo para purificar ácidos alcanossulfônicos, ácido alcanossulfônico, e, hidrato do ácido alcanossulfônico? |
CN106748907B (zh) * | 2017-01-18 | 2019-02-05 | 湖北星火化工有限公司 | 一种甲基磺酸的提纯方法 |
CN112079750A (zh) * | 2019-06-12 | 2020-12-15 | 联化科技(盐城)有限公司 | 一种甲基磺酸的制备方法 |
CN112079751B (zh) * | 2020-09-24 | 2022-11-29 | 辽宁科隆精细化工股份有限公司 | 一种高纯甲烷磺酸的制备方法 |
CN113754170A (zh) * | 2021-09-27 | 2021-12-07 | 高密银鹰新材料股份有限公司 | 一种纤维素生产中蒸发废液的处理方法 |
CN116040596A (zh) * | 2022-01-09 | 2023-05-02 | 四川大学 | 硝酸法湿法磷酸综合利用的方法 |
CN115572246A (zh) * | 2022-09-30 | 2023-01-06 | 湖北源洹实业投资有限公司 | 一种以氯化氢气体作酸化试剂制备苯磺酸的工艺 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6060621A (en) * | 1997-10-04 | 2000-05-09 | Grillo-Werke A.G. | Process for the preparation of methanesulfonic acid |
CN1810780A (zh) * | 2005-01-26 | 2006-08-02 | 河北亚诺化工有限公司 | 一种制备甲基磺酸的方法 |
-
2007
- 2007-01-10 CN CN2007100000800A patent/CN101219975B/zh not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6060621A (en) * | 1997-10-04 | 2000-05-09 | Grillo-Werke A.G. | Process for the preparation of methanesulfonic acid |
CN1810780A (zh) * | 2005-01-26 | 2006-08-02 | 河北亚诺化工有限公司 | 一种制备甲基磺酸的方法 |
Also Published As
Publication number | Publication date |
---|---|
CN101219975A (zh) | 2008-07-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101219975B (zh) | 甲基磺酸的一种制备方法 | |
US3970528A (en) | Process for the purification of electrolysis brine | |
CN100348579C (zh) | 一种制备甲基磺酸的方法 | |
US3998935A (en) | Manufacture of potassium sulfate | |
CN103979590A (zh) | 一种制备高纯结晶氯化铝的方法 | |
CN114436297B (zh) | 一种芒硝制纯碱的方法 | |
CA1166952A (en) | Method for purification and concentration of mgc1.sub.2-brines | |
CN107531480B (zh) | 氢溴酸制备方法 | |
KR20010034850A (ko) | 황산칼륨 제조방법 | |
CN101219973B (zh) | 一种联二脲的制备方法 | |
US2764472A (en) | Brine purification | |
CS212744B2 (en) | Method of preparing calcium hypochlorite | |
CN1174921C (zh) | 一种在循环介质中制取高纯度氧化镁或碳酸镁的方法 | |
EP1124757A1 (en) | Process for producing potassium sulfate from potash and sodium sulfate | |
RU2424187C1 (ru) | Способ получения высокочистого фторида бария | |
US4908043A (en) | Method of producing crystals of anhydrous sodium sulfide | |
CN108220625A (zh) | 一种从含锂废液中回收锂的方法 | |
JPH05186216A (ja) | 硫酸カリウムと塩酸の製造方法 | |
JP4631129B2 (ja) | テトラブロモビスフェノールaの連続晶析方法 | |
US5869014A (en) | Process for the production of purified, synthetic calcium borate | |
KR20110013420A (ko) | 2,4,6-트리머캅토-s-트리아진의 3나트륨 염을 제조하는 방법 | |
JPS58161907A (ja) | 過硫酸ナトリウムの製法 | |
EP0025237A1 (en) | Method for producing strontium nitrate | |
JPS6259513A (ja) | 珪弗化マグネシウムの製造方法 | |
CN114591288B (zh) | 一种硫酸乙烯酯的制备方法及制备设备 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee |
Owner name: HEBEI YANUO CHEMICAL INDUSTRY CO., LTD. Free format text: FORMER NAME: HEBEI YANAO CHEMICAL CO., LTD. |
|
CP01 | Change in the name or title of a patent holder |
Address after: 052165, Alishan Avenue, Shijiazhuang Development Zone, Hebei, 19 Patentee after: HEBEI YANUO CHEMICAL Co.,Ltd. Address before: 052165, Alishan Avenue, Shijiazhuang Development Zone, Hebei, 19 Patentee before: Hebei Yanuo Chemical Industry Co.,Ltd. |
|
C56 | Change in the name or address of the patentee | ||
CP01 | Change in the name or title of a patent holder |
Address after: 052165, Alishan Avenue, Shijiazhuang Development Zone, Hebei, 19 Patentee after: Hebei Yanuo Biological Technology Co.,Ltd. Address before: 052165, Alishan Avenue, Shijiazhuang Development Zone, Hebei, 19 Patentee before: HEBEI YANUO CHEMICAL Co.,Ltd. |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100721 |
|
CF01 | Termination of patent right due to non-payment of annual fee |