WO2017030282A1 - 과산세 방지제 분석장치 및 이를 이용한 과산세 방지제 분석방법 - Google Patents
과산세 방지제 분석장치 및 이를 이용한 과산세 방지제 분석방법 Download PDFInfo
- Publication number
- WO2017030282A1 WO2017030282A1 PCT/KR2016/006622 KR2016006622W WO2017030282A1 WO 2017030282 A1 WO2017030282 A1 WO 2017030282A1 KR 2016006622 W KR2016006622 W KR 2016006622W WO 2017030282 A1 WO2017030282 A1 WO 2017030282A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- acid
- inlet
- ammonia
- solution
- inhibitor
- 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.)
- Ceased
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/04—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors
- C23G1/06—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
- C23G1/081—Iron or steel solutions containing H2SO4
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G3/00—Apparatus for cleaning or pickling metallic material
- C23G3/02—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G3/00—Apparatus for cleaning or pickling metallic material
- C23G3/02—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously
- C23G3/027—Associated apparatus, e.g. for pretreating or after-treating
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/16—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using titration
Definitions
- the cold rolling process is a step of rolling a hot rolled steel at a temperature near room temperature, and is a step of producing a product having a beautiful surface and excellent workability.
- the hot rolled coil is subjected to a pickling and rolling facility, and then the final product is produced through a facility such as galvanizing or cold rolling.
- the level measuring unit 302 measures the level of boric acid introduced into the second reaction unit 102 through the sixth inlet unit 6 in the boric acid storage unit 205, and the ammonia is collected and collected in the boric acid.
- the level of the collecting solution and the level of the collecting solution titrated by adding the sulfuric acid can be measured.
- the control operation unit 103 may derive the concentration of nitrogen included in the anti-acid tax inhibitor by using the pH data of the pH measuring unit 301 and the level data measured by the level measuring unit 302.
- an amine compound included in the anti-acid pickling inhibitor can be used a conventional one.
- it may be hexamethylenetetraamine (HMTA).
- the titration may be performed by measuring the pH of the boric acid, and adding sulfuric acid to the collection solution, adjusting the pH of the collection solution to the pH of the measured boric acid.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Molecular Biology (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
Description
Claims (5)
- 아민계 화합물을 포함하는 과산세 방지제가 유입되는 제1 유입부, 분해제가 유입되는 제2 유입부, SHST(sodium hydroxide-sodium thiosulfate) 용액이 유입되는 제3 유입부 및 물이 유입되는 제4 유입부가 구비되며, 상기 과산세 방지제에 분해제를 첨가하고 가열하여 상기 과산세 방지제를 분해하고, 상기 분해된 과산세 방지제에 상기 SHST 용액 및 물을 유입하고 증류하여 암모니아(NH3)를 발생하는 제1 반응부;상기 제1 반응부에서 증류된 암모니아가 유입되는 제5 유입부, 붕산이 유입되는 제6 유입부, 황산이 유입되는 제7 유입부, 내부 pH를 측정하는 pH 측정부 및 내부 레벨을 측정하는 레벨측정부가 구비되며, 상기 유입된 암모니아를 붕산으로 포집하여 포집용액을 생성하고, 상기 황산을 유입하여 상기 포집용액을 적정하는 제2 반응부; 및상기 pH 측정부 및 레벨측정부와 전기적으로 연결되어 상기 측정된 제2 반응부 내부의 pH 및 레벨 데이터가 전송되어 과산세 방지제의 농도를 분석하는 제어연산부;를 포함하는 것을 특징으로 하는 과산세 방지제 분석장치.
- 아민계 화합물을 포함하는 과산세 방지제에 분해제를 첨가하고 가열하여 분해하는 단계;상기 분해된 과산세 방지제에 SHST(sodium hydroxide-sodium thiosulfate) 용액 및 물을 첨가하고 증류하여 발생하는 암모니아(NH3)를 수집하는 단계;상기 수집된 암모니아(NH3)를 붕산으로 포집하여, 포집용액을 생성하는 단계; 및상기 포집용액을 황산으로 적정하여, 상기 암모니아(NH3)에 포함된 질소농도를 도출하는 단계;를 포함하며,상기 분해제는 황산칼륨(K2SO4), 황산구리(CuSO4), 황산(H2SO4) 및 물을 혼합하여 제조되는 것을 특징으로 하는 과산세 방지제 분석방법.
- 제2항에 있어서,상기 가열은 350℃~400℃에서 이루어지는 것을 특징으로 하는 과산세 방지제 분석방법.
- 제2항에 있어서,상기 증류는 65℃~100℃에서 이루어지는 것을 특징으로 하는 과산세 방지제 분석방법.
- 제2항에 있어서,상기 적정은, 상기 붕산의 pH를 측정하고, 그리고상기 포집용액에 황산을 투입하여, 상기 포집용액의 pH를 상기 측정된 붕산의 pH까지 조절하는 단계;를 포함하여 이루어지는 것을 특징으로 하는 과산세 방지제 분석방법.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201680047434.4A CN107923894A (zh) | 2015-08-19 | 2016-06-22 | 过度酸洗预防剂分析装置和使用该装置的过度酸洗预防剂分析方法 |
| JP2018506405A JP6480084B2 (ja) | 2015-08-19 | 2016-06-22 | 過酸洗防止剤分析装置およびこれを用いた過酸洗防止剤分析方法 |
| DE112016003741.4T DE112016003741T5 (de) | 2015-08-19 | 2016-06-22 | Überentzunderungspräventivmittelanalysevorrichtung und Verfahren zur Überentzunderungspräventivmittelanalyse unter Verwendung derselben |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2015-0116784 | 2015-08-19 | ||
| KR1020150116784A KR101777916B1 (ko) | 2015-08-19 | 2015-08-19 | 과산세 방지제 분석장치 및 이를 이용한 과산세 방지제 분석방법 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2017030282A1 true WO2017030282A1 (ko) | 2017-02-23 |
Family
ID=58052087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2016/006622 Ceased WO2017030282A1 (ko) | 2015-08-19 | 2016-06-22 | 과산세 방지제 분석장치 및 이를 이용한 과산세 방지제 분석방법 |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP6480084B2 (ko) |
| KR (1) | KR101777916B1 (ko) |
| CN (1) | CN107923894A (ko) |
| DE (1) | DE112016003741T5 (ko) |
| WO (1) | WO2017030282A1 (ko) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR940022674U (ko) * | 1993-03-29 | 1994-10-20 | 포항종합제철 주식회사 | 과산세 방지용액 첨가장치 |
| US6329206B1 (en) * | 1999-06-22 | 2001-12-11 | Henkel Corporation | Method of determining inhibitor concentrations in inhibited acidic pickling solutions |
| JP2003090836A (ja) * | 2001-09-19 | 2003-03-28 | Horiba Ltd | 窒素化合物測定方法および窒素化合物測定装置 |
| KR20110054500A (ko) * | 2009-11-17 | 2011-05-25 | 이수남 | 다수의 가열 분해조를 구비한 총인 및 총질소의 계측 장치 |
| KR101057970B1 (ko) * | 2011-04-18 | 2011-08-19 | 길주형 | 수중의 무기성 질소화합물 분석기 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0743366B2 (ja) * | 1987-05-19 | 1995-05-15 | 財団法人化学及血清療法研究所 | ケルダ−ル窒素定量装置 |
| JP2003003280A (ja) * | 2001-06-25 | 2003-01-08 | Nippon Steel Corp | 端面防錆性に優れためっき鋼材 |
| KR100899687B1 (ko) | 2002-08-23 | 2009-05-28 | 주식회사 포스코 | 열연강판의 산세방법 |
| KR100805727B1 (ko) * | 2006-08-22 | 2008-02-21 | 주식회사 포스코 | 산세강판의 얼룩 및 녹 생성 방지제 |
| CN100573111C (zh) * | 2007-04-27 | 2009-12-23 | 李立华 | 一种电脑全自动凯氏定氮仪 |
| CN201611342U (zh) * | 2010-02-03 | 2010-10-20 | 济南精密科学仪器仪表有限公司 | 自动进样凯氏定氮仪 |
| CN103018236B (zh) * | 2012-11-30 | 2014-10-29 | 济南海能仪器股份有限公司 | 一种利用滴定装置进行氮含量测量的方法 |
| JP2014234469A (ja) * | 2013-06-04 | 2014-12-15 | 株式会社ブリヂストン | ゴム組成物及びそれを用いたタイヤ |
| CN203405437U (zh) * | 2013-08-31 | 2014-01-22 | 李中 | 一种浓度法测定凯氏氮的定氮仪 |
| CN203720189U (zh) * | 2014-02-28 | 2014-07-16 | 张笑言 | 全自动凯氏定氮仪 |
-
2015
- 2015-08-19 KR KR1020150116784A patent/KR101777916B1/ko active Active
-
2016
- 2016-06-22 DE DE112016003741.4T patent/DE112016003741T5/de active Pending
- 2016-06-22 CN CN201680047434.4A patent/CN107923894A/zh active Pending
- 2016-06-22 WO PCT/KR2016/006622 patent/WO2017030282A1/ko not_active Ceased
- 2016-06-22 JP JP2018506405A patent/JP6480084B2/ja active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR940022674U (ko) * | 1993-03-29 | 1994-10-20 | 포항종합제철 주식회사 | 과산세 방지용액 첨가장치 |
| US6329206B1 (en) * | 1999-06-22 | 2001-12-11 | Henkel Corporation | Method of determining inhibitor concentrations in inhibited acidic pickling solutions |
| JP2003090836A (ja) * | 2001-09-19 | 2003-03-28 | Horiba Ltd | 窒素化合物測定方法および窒素化合物測定装置 |
| KR20110054500A (ko) * | 2009-11-17 | 2011-05-25 | 이수남 | 다수의 가열 분해조를 구비한 총인 및 총질소의 계측 장치 |
| KR101057970B1 (ko) * | 2011-04-18 | 2011-08-19 | 길주형 | 수중의 무기성 질소화합물 분석기 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6480084B2 (ja) | 2019-03-06 |
| KR101777916B1 (ko) | 2017-09-26 |
| DE112016003741T5 (de) | 2018-04-26 |
| JP2018523128A (ja) | 2018-08-16 |
| CN107923894A (zh) | 2018-04-17 |
| KR20170022153A (ko) | 2017-03-02 |
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