CN103938263B - 用氰亚胺荒酸二甲酯废水制备硫酸钙晶须的工艺 - Google Patents
用氰亚胺荒酸二甲酯废水制备硫酸钙晶须的工艺 Download PDFInfo
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- CN103938263B CN103938263B CN201410141769.5A CN201410141769A CN103938263B CN 103938263 B CN103938263 B CN 103938263B CN 201410141769 A CN201410141769 A CN 201410141769A CN 103938263 B CN103938263 B CN 103938263B
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- CN
- China
- Prior art keywords
- waste water
- calcium sulfate
- sulfate crystal
- crystal whiskers
- whiskers
- 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.)
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- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 title claims abstract description 50
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 239000002351 wastewater Substances 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 18
- IULFXBLVJIPESI-UHFFFAOYSA-N bis(methylsulfanyl)methylidenecyanamide Chemical compound CSC(SC)=NC#N IULFXBLVJIPESI-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 239000013078 crystal Substances 0.000 title claims abstract description 16
- 150000002466 imines Chemical class 0.000 title claims abstract description 15
- 239000012535 impurity Substances 0.000 claims abstract description 13
- 239000007787 solid Substances 0.000 claims abstract description 13
- 238000002425 crystallisation Methods 0.000 claims abstract description 11
- 230000008025 crystallization Effects 0.000 claims abstract description 10
- 238000010533 azeotropic distillation Methods 0.000 claims abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims abstract description 7
- 238000007781 pre-processing Methods 0.000 claims abstract description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 5
- 239000010413 mother solution Substances 0.000 claims description 5
- 235000011149 sulphuric acid Nutrition 0.000 claims description 3
- 239000001117 sulphuric acid Substances 0.000 claims description 3
- 239000006104 solid solution Substances 0.000 claims 1
- 238000001035 drying Methods 0.000 abstract description 7
- 230000007423 decrease Effects 0.000 abstract description 3
- 238000010792 warming Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000000835 fiber Substances 0.000 description 9
- 239000000126 substance Substances 0.000 description 9
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 description 6
- 238000010992 reflux Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 4
- -1 cyanogen imines Chemical class 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 2
- MYFXBBAEXORJNB-UHFFFAOYSA-N calcium cyanamide Chemical compound [Ca+2].[N-]=C=[N-] MYFXBBAEXORJNB-UHFFFAOYSA-N 0.000 description 2
- 229910001424 calcium ion Inorganic materials 0.000 description 2
- 159000000007 calcium salts Chemical class 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000012043 crude product Substances 0.000 description 2
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 2
- VAYGXNSJCAHWJZ-UHFFFAOYSA-N dimethyl sulfate Chemical compound COS(=O)(=O)OC VAYGXNSJCAHWJZ-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007634 remodeling Methods 0.000 description 2
- KEDVUOWPLAHMLZ-UHFFFAOYSA-N 1-cyano-3-[2-[(5-methyl-1h-imidazol-4-yl)methylsulfanyl]ethyl]-2-prop-2-ynylguanidine Chemical compound CC=1NC=NC=1CSCCNC(NC#N)=NCC#C KEDVUOWPLAHMLZ-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- GJYLKIZKRHDRER-UHFFFAOYSA-N calcium;sulfuric acid Chemical compound [Ca].OS(O)(=O)=O GJYLKIZKRHDRER-UHFFFAOYSA-N 0.000 description 1
- CCGSUNCLSOWKJO-UHFFFAOYSA-N cimetidine Chemical compound N#CNC(=N/C)\NCCSCC1=NC=N[C]1C CCGSUNCLSOWKJO-UHFFFAOYSA-N 0.000 description 1
- 229960001380 cimetidine Drugs 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229950007285 etintidine Drugs 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 210000001035 gastrointestinal tract Anatomy 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
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Application Number | Priority Date | Filing Date | Title |
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CN201410141769.5A CN103938263B (zh) | 2014-04-09 | 2014-04-09 | 用氰亚胺荒酸二甲酯废水制备硫酸钙晶须的工艺 |
Applications Claiming Priority (1)
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CN201410141769.5A CN103938263B (zh) | 2014-04-09 | 2014-04-09 | 用氰亚胺荒酸二甲酯废水制备硫酸钙晶须的工艺 |
Publications (2)
Publication Number | Publication Date |
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CN103938263A CN103938263A (zh) | 2014-07-23 |
CN103938263B true CN103938263B (zh) | 2016-08-31 |
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CN201410141769.5A Expired - Fee Related CN103938263B (zh) | 2014-04-09 | 2014-04-09 | 用氰亚胺荒酸二甲酯废水制备硫酸钙晶须的工艺 |
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CN (1) | CN103938263B (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN111087005A (zh) * | 2019-12-25 | 2020-05-01 | 洛阳森蓝化工材料科技有限公司 | 一种防止氟气纯化剂烧结变色的方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51141793A (en) * | 1975-06-02 | 1976-12-06 | Asahi Chem Ind Co Ltd | Method of forming calcium sulfate whisker |
CN100523312C (zh) * | 2005-10-19 | 2009-08-05 | 辽宁石油化工大学 | 硫酸钙晶须的制备方法 |
CN101311337B (zh) * | 2008-04-25 | 2010-06-16 | 东北大学 | 利用烟气脱硫石膏制备硫酸钙晶须的方法 |
CN101353815B (zh) * | 2008-08-19 | 2011-05-18 | 浙江大学 | 以白云岩和苦卤为原料制备碱式氯化镁晶须的方法 |
CN101343773B (zh) * | 2008-08-26 | 2011-05-11 | 吉林大学 | 硫酸钠废水液相法原位制备疏水性硫酸钙晶须 |
CN102453951B (zh) * | 2010-10-21 | 2014-05-14 | 华东理工大学 | 一种利用制碱废液和废硫酸制高品质硫酸钙晶须的方法 |
CN102383179B (zh) * | 2011-10-09 | 2015-09-09 | 昆明理工大学 | 一种工业废酸与磷石膏综合利用的方法 |
CN103060919B (zh) * | 2013-02-04 | 2015-06-17 | 北京蓝星清洗有限公司 | 利用糖厂垢制备硫酸钙晶须的方法 |
CN103540996A (zh) * | 2013-09-27 | 2014-01-29 | 蚌埠丰原医药科技发展有限公司 | 利用废硫酸生产硫酸钙晶须的方法 |
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- 2014-04-09 CN CN201410141769.5A patent/CN103938263B/zh not_active Expired - Fee Related
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Inventor after: Li Zeping Inventor after: Song Shilei Inventor before: Song Shilei |
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Effective date of registration: 20160414 Address after: New Kumho 210032 Nanjing Road, Jiangsu province No. 3-1 Danish ecological life science industry park a 21 floor building A room 2101 Applicant after: Nanjing Keshuo Biochemical Technology Co.,Ltd. Address before: Baixia road Nanjing 210000 Jiangsu province No. 87 room 1501 Applicant before: NORCHEM JIANGSU Corp. |
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