CN101235055A - 一种制造木质素磺酸钠的方法 - Google Patents
一种制造木质素磺酸钠的方法 Download PDFInfo
- Publication number
- CN101235055A CN101235055A CNA2007101158027A CN200710115802A CN101235055A CN 101235055 A CN101235055 A CN 101235055A CN A2007101158027 A CNA2007101158027 A CN A2007101158027A CN 200710115802 A CN200710115802 A CN 200710115802A CN 101235055 A CN101235055 A CN 101235055A
- Authority
- CN
- China
- Prior art keywords
- add
- sodium lignosulfonate
- black liquor
- sulfonation
- solution
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims description 26
- YDEXUEFDPVHGHE-GGMCWBHBSA-L disodium;(2r)-3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Na+].[Na+].COC1=CC=CC(C[C@H](CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O YDEXUEFDPVHGHE-GGMCWBHBSA-L 0.000 title description 2
- 238000006277 sulfonation reaction Methods 0.000 claims abstract description 27
- 229920005552 sodium lignosulfonate Polymers 0.000 claims abstract description 20
- 229920005610 lignin Polymers 0.000 claims abstract description 16
- 239000002253 acid Substances 0.000 claims abstract description 12
- 239000007787 solid Substances 0.000 claims abstract description 12
- 238000004090 dissolution Methods 0.000 claims abstract description 11
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000001035 drying Methods 0.000 claims abstract description 9
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 8
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 7
- 230000033444 hydroxylation Effects 0.000 claims abstract description 5
- 238000005805 hydroxylation reaction Methods 0.000 claims abstract description 5
- 230000001590 oxidative effect Effects 0.000 claims abstract 2
- 239000007788 liquid Substances 0.000 claims description 13
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 238000000926 separation method Methods 0.000 claims description 9
- 230000003647 oxidation Effects 0.000 claims description 6
- 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 description 5
- 239000011734 sodium Substances 0.000 claims description 5
- 229910052708 sodium Inorganic materials 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 4
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 4
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 3
- KIWBPDUYBMNFTB-UHFFFAOYSA-N Ethyl hydrogen sulfate Chemical group CCOS(O)(=O)=O KIWBPDUYBMNFTB-UHFFFAOYSA-N 0.000 claims description 3
- 239000011790 ferrous sulphate Substances 0.000 claims description 3
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 3
- 239000003546 flue gas Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 3
- 238000007601 warm air drying Methods 0.000 claims description 3
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical group [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims 1
- 238000010626 work up procedure Methods 0.000 claims 1
- 239000000047 product Substances 0.000 abstract description 15
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract description 9
- 238000010438 heat treatment Methods 0.000 abstract description 5
- 239000012265 solid product Substances 0.000 abstract description 5
- 239000000843 powder Substances 0.000 abstract description 3
- 235000011121 sodium hydroxide Nutrition 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000000889 atomisation Methods 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 239000007800 oxidant agent Substances 0.000 abstract 1
- 239000007795 chemical reaction product Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 5
- 238000003756 stirring Methods 0.000 description 4
- 238000013019 agitation Methods 0.000 description 3
- SURQXAFEQWPFPV-UHFFFAOYSA-L iron(2+) sulfate heptahydrate Chemical compound O.O.O.O.O.O.O.[Fe+2].[O-]S([O-])(=O)=O SURQXAFEQWPFPV-UHFFFAOYSA-L 0.000 description 3
- 239000012263 liquid product Substances 0.000 description 3
- 238000001694 spray drying Methods 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 239000010977 jade Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- FOGYNLXERPKEGN-UHFFFAOYSA-N 3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfopropyl)phenoxy]propane-1-sulfonic acid Chemical compound COC1=CC=CC(CC(CS(O)(=O)=O)OC=2C(=CC(CCCS(O)(=O)=O)=CC=2)OC)=C1O FOGYNLXERPKEGN-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Chemical compound OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- URILAKIDNLGFFA-UHFFFAOYSA-N S(O)(=O)(=O)OO.[Na] Chemical compound S(O)(=O)(=O)OO.[Na] URILAKIDNLGFFA-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000008098 formaldehyde solution Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
Abstract
Description
掺量木质素璜酸钙木质素璜酸钠(本例) | 0.2%190192 | 0.3%202206 | 0.4%218222 |
序号 | 检验项目 | 性能指标 | 检验结果 | 单项判定 | ||
一等品 | 合格品 | |||||
1 | 减水率(%) | >=8 | >=5 | 12 | 一等品 | |
2 | 泌水率(%) | <=100 | <=100 | |||
3 | 含气量(%) | <5.5 | <5.5 | 2.8 | 一等品 | |
4 | 凝结时间(min) | 初凝 | >+90 | >+90 | 4:56 | 一等品 |
终凝 | 6:08 | |||||
5 | 抗压强度比(%) | 3d | >=100 | >=100 | 116 | 一等品 |
7d | >=110 | >=110 | 119 | 一等品 | ||
28d | >=110 | >=105 | 112 | 一等品 | ||
6 | 收缩率比(%) | 28d | <=135 | <=135 | 109 | 一等品 |
7 | 对钢筋锈蚀作用 | 应说明对钢筋有无锈蚀危害 | 无锈蚀危害 | 合格 |
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2007101158027A CN101235055B (zh) | 2007-12-19 | 2007-12-19 | 一种制造木质素磺酸钠的方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2007101158027A CN101235055B (zh) | 2007-12-19 | 2007-12-19 | 一种制造木质素磺酸钠的方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101235055A true CN101235055A (zh) | 2008-08-06 |
CN101235055B CN101235055B (zh) | 2010-11-24 |
Family
ID=39918990
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2007101158027A Active CN101235055B (zh) | 2007-12-19 | 2007-12-19 | 一种制造木质素磺酸钠的方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN101235055B (zh) |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102153764A (zh) * | 2011-02-25 | 2011-08-17 | 福州大学 | 高级催化氧化制备木质素磺酸钠分散剂的方法 |
CN102174274A (zh) * | 2011-03-08 | 2011-09-07 | 延边石岘白麓纸业股份有限公司 | 基于硫酸盐法制浆废液制备染料分散剂的方法 |
CN102465046A (zh) * | 2010-10-28 | 2012-05-23 | 财团法人工业技术研究院 | 生质水煤浆的制造方法及以该方法制造的生质水煤浆 |
CN103497342A (zh) * | 2013-09-27 | 2014-01-08 | 山东龙力生物科技股份有限公司 | 一种生产酶解木质素磺酸盐的方法 |
CN103642051A (zh) * | 2013-12-06 | 2014-03-19 | 安阳市双环助剂有限责任公司 | 一种利用木质素处理碱吸收二氧化硫废液的方法 |
CN104630307A (zh) * | 2014-12-24 | 2015-05-20 | 山东龙力生物科技股份有限公司 | 一种玉米全株组分分离分级利用的生物炼制集成工艺 |
CN104659369A (zh) * | 2015-03-26 | 2015-05-27 | 天能集团江苏科技有限公司 | 一种铅酸电池用改性木钠的制备方法 |
CN104877143A (zh) * | 2015-06-24 | 2015-09-02 | 济南圣泉集团股份有限公司 | 染料分散剂及其制备方法 |
CN104892953A (zh) * | 2015-06-24 | 2015-09-09 | 济南圣泉集团股份有限公司 | 改性木质素磺酸盐及其制备方法和应用 |
CN104892954A (zh) * | 2015-06-24 | 2015-09-09 | 济南圣泉集团股份有限公司 | 改性木质素磺酸盐及其制备方法 |
CN106317418A (zh) * | 2016-08-31 | 2017-01-11 | 安徽丰原发酵技术工程研究有限公司 | 利用玉米芯酸解渣碱煮黑液制作木质素磺酸钠的方法 |
CN108424797A (zh) * | 2018-03-22 | 2018-08-21 | 邱慕涛 | 一种复合型水煤浆添加剂及其制备工艺 |
CN109665651A (zh) * | 2017-10-13 | 2019-04-23 | 中国石油化工股份有限公司 | 对硝基苯胺生产废水的处理方法 |
CN110105588A (zh) * | 2019-06-11 | 2019-08-09 | 中国林业科学研究院林产化学工业研究所 | 一种新型磺化木质素的制备方法 |
CN110483807A (zh) * | 2019-09-04 | 2019-11-22 | 上海昶法新材料有限公司 | 一种烧碱法制浆废液制备木质素磺酸盐减水剂的方法 |
CN110615896A (zh) * | 2019-09-04 | 2019-12-27 | 上海昶法新材料有限公司 | 一种溶解浆制浆废液制备木质素磺酸盐减水剂的方法 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102614809B (zh) * | 2012-03-02 | 2013-11-27 | 山东大学 | 利用造纸污泥制备分散-稳定剂的方法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4521336A (en) * | 1984-04-16 | 1985-06-04 | Westvaco Corporation | Process for preparing lignosulfonates |
CN100355691C (zh) * | 2004-05-25 | 2007-12-19 | 刘明华 | 一种利用制浆黑液制备木质素磺酸钠减水剂的方法 |
-
2007
- 2007-12-19 CN CN2007101158027A patent/CN101235055B/zh active Active
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102465046A (zh) * | 2010-10-28 | 2012-05-23 | 财团法人工业技术研究院 | 生质水煤浆的制造方法及以该方法制造的生质水煤浆 |
CN102153764B (zh) * | 2011-02-25 | 2013-06-05 | 福州大学 | 高级催化氧化制备木质素磺酸钠分散剂的方法 |
CN102153764A (zh) * | 2011-02-25 | 2011-08-17 | 福州大学 | 高级催化氧化制备木质素磺酸钠分散剂的方法 |
CN102174274A (zh) * | 2011-03-08 | 2011-09-07 | 延边石岘白麓纸业股份有限公司 | 基于硫酸盐法制浆废液制备染料分散剂的方法 |
CN103497342B (zh) * | 2013-09-27 | 2015-11-11 | 山东龙力生物科技股份有限公司 | 一种生产酶解木质素磺酸盐的方法 |
CN103497342A (zh) * | 2013-09-27 | 2014-01-08 | 山东龙力生物科技股份有限公司 | 一种生产酶解木质素磺酸盐的方法 |
CN103642051A (zh) * | 2013-12-06 | 2014-03-19 | 安阳市双环助剂有限责任公司 | 一种利用木质素处理碱吸收二氧化硫废液的方法 |
CN104630307A (zh) * | 2014-12-24 | 2015-05-20 | 山东龙力生物科技股份有限公司 | 一种玉米全株组分分离分级利用的生物炼制集成工艺 |
CN104630307B (zh) * | 2014-12-24 | 2017-12-29 | 山东龙力生物科技股份有限公司 | 一种玉米全株组分分离分级利用的生物炼制集成工艺 |
CN104659369A (zh) * | 2015-03-26 | 2015-05-27 | 天能集团江苏科技有限公司 | 一种铅酸电池用改性木钠的制备方法 |
CN104659369B (zh) * | 2015-03-26 | 2017-01-18 | 天能集团江苏科技有限公司 | 一种铅酸电池用改性木钠的制备方法 |
CN104892954A (zh) * | 2015-06-24 | 2015-09-09 | 济南圣泉集团股份有限公司 | 改性木质素磺酸盐及其制备方法 |
CN104892953A (zh) * | 2015-06-24 | 2015-09-09 | 济南圣泉集团股份有限公司 | 改性木质素磺酸盐及其制备方法和应用 |
CN104877143A (zh) * | 2015-06-24 | 2015-09-02 | 济南圣泉集团股份有限公司 | 染料分散剂及其制备方法 |
CN106317418A (zh) * | 2016-08-31 | 2017-01-11 | 安徽丰原发酵技术工程研究有限公司 | 利用玉米芯酸解渣碱煮黑液制作木质素磺酸钠的方法 |
CN106317418B (zh) * | 2016-08-31 | 2018-10-12 | 安徽丰原发酵技术工程研究有限公司 | 利用玉米芯酸解渣碱煮黑液制作木质素磺酸钠的方法 |
CN109665651A (zh) * | 2017-10-13 | 2019-04-23 | 中国石油化工股份有限公司 | 对硝基苯胺生产废水的处理方法 |
CN108424797A (zh) * | 2018-03-22 | 2018-08-21 | 邱慕涛 | 一种复合型水煤浆添加剂及其制备工艺 |
CN108424797B (zh) * | 2018-03-22 | 2020-08-28 | 邱慕涛 | 一种复合型水煤浆添加剂及其制备工艺 |
CN110105588A (zh) * | 2019-06-11 | 2019-08-09 | 中国林业科学研究院林产化学工业研究所 | 一种新型磺化木质素的制备方法 |
CN110483807A (zh) * | 2019-09-04 | 2019-11-22 | 上海昶法新材料有限公司 | 一种烧碱法制浆废液制备木质素磺酸盐减水剂的方法 |
CN110615896A (zh) * | 2019-09-04 | 2019-12-27 | 上海昶法新材料有限公司 | 一种溶解浆制浆废液制备木质素磺酸盐减水剂的方法 |
Also Published As
Publication number | Publication date |
---|---|
CN101235055B (zh) | 2010-11-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101235055B (zh) | 一种制造木质素磺酸钠的方法 | |
CN102604120B (zh) | 采用两步氧化法制备木质素磺酸盐分散剂的方法 | |
CN112094012B (zh) | 一种基于电子传递的强化城市污泥厌氧消化产甲烷的方法 | |
CN105060599B (zh) | 一种不锈钢酸洗废水资源化回收方法 | |
CN100355691C (zh) | 一种利用制浆黑液制备木质素磺酸钠减水剂的方法 | |
CN110668580A (zh) | 基于水解酸化耦合短程反硝化技术实现颗粒有机物去除以及no2--n产出的装置与方法 | |
CN104098238A (zh) | 一种剩余污泥的深度处理方法 | |
CN103588935A (zh) | 以丙烯酸废水为原料制备改性木质素磺酸盐减水剂的方法 | |
CN101837961B (zh) | 一种符合节能减排及低成本配制稀硝酸的方法及装置 | |
CN102838197A (zh) | 新型复合絮凝剂聚硅酸硫酸亚铁铝的制备方法 | |
CN106277894A (zh) | 一种环保早强型氧化石墨烯水泥助磨剂及其制备方法 | |
CN101935255A (zh) | 一种木质素金属元素螯合肥的制备方法及其装置 | |
CN101407352B (zh) | 一种掺杂锌的聚硅铁锌混凝剂及其制备方法 | |
CN110395770A (zh) | 一种利用污泥料生产铁红的方法 | |
CN102372456B (zh) | 一种利用低酸度工艺废水制备萘系助剂的方法 | |
CN105293977B (zh) | 一种聚羧酸减水剂的快速制备工艺 | |
CN103991912B (zh) | 一种聚合硫酸铁铝的合成工艺 | |
CN86100483B (zh) | 聚合硫酸铁的生产方法 | |
CN110559818A (zh) | 一种次氧化锌烟灰作为脱硫剂的烟气脱硫方法 | |
CN202953965U (zh) | 净酚钠硫酸连续分解设备 | |
CN102964220A (zh) | 净酚钠硫酸连续分解工艺及其设备 | |
CN104628605A (zh) | 一种萘连续催化磺化方法及其装置 | |
CN108751246A (zh) | 一种净化磷石膏机构 | |
CN103058594A (zh) | 粉煤灰在建筑砂浆中的应用 | |
CN102838754A (zh) | 磺甲基化和磷羟化联用制备木质素基陶瓷添加剂的方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Method for manufacturing lignin sodium sulfonate Effective date of registration: 20170612 Granted publication date: 20101124 Pledgee: Qilu bank, Limited by Share Ltd, Ji'nan West Branch Pledgor: Jinan Dalu Electromechanical Co., Ltd. Registration number: 2017370000064 |
|
PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190424 Granted publication date: 20101124 Pledgee: Qilu bank Limited by Share Ltd Ji'nan Wen Xi branch Pledgor: Jinan Dalu Electromechanical Co., Ltd. Registration number: 2017370000064 |
|
PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Method for manufacturing lignin sodium sulfonate Effective date of registration: 20190509 Granted publication date: 20101124 Pledgee: Bank of Tai'an, Limited by Share Ltd, Ji'nan branch Pledgor: Jinan Dalu Electromechanical Co., Ltd. Registration number: 2019370000102 |
|
PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20200429 Granted publication date: 20101124 Pledgee: Bank of Tai'an, Limited by Share Ltd, Ji'nan branch Pledgor: JINAN DALU MECHANISM & ELECTRON Co.,Ltd. Registration number: 2019370000102 |