CA2037893C - Pickling process in an acid bath of metallic products containing titanium or at least one chemical element of the titanium family - Google Patents

Pickling process in an acid bath of metallic products containing titanium or at least one chemical element of the titanium family Download PDF

Info

Publication number: CA2037893C
Authority: CA; Canada
Prior art keywords: acid; titanium; metal; process according; bath
Prior art date: 1989-07-26
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

Application number

CA002037893A

Other languages

English (en)

French (fr)

Other versions

CA2037893A1 (en

Inventor

Dominique Henriet

Didier Paul

Laurent Prost

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

USINOR SA

Original Assignee

USINOR SA

Priority date (The priority date 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 date listed.)

1989-07-26

Filing date

1990-07-25

Publication date

2001-07-24

1990-07-25 Application filed by USINOR SA filed Critical USINOR SA

1991-01-27 Publication of CA2037893A1 publication Critical patent/CA2037893A1/en

2001-07-24 Application granted granted Critical

2001-07-24 Publication of CA2037893C publication Critical patent/CA2037893C/en

2010-07-25 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Links

239000010936 titanium Substances 0.000 title claims abstract description 40
239000002253 acid Substances 0.000 title claims abstract description 39
238000000034 method Methods 0.000 title claims abstract description 39
RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 37
229910052719 titanium Inorganic materials 0.000 title claims abstract description 36
238000005554 pickling Methods 0.000 title claims abstract description 32
229910052729 chemical element Inorganic materials 0.000 title claims description 7
229910052751 metal Inorganic materials 0.000 claims abstract description 35
239000002184 metal Substances 0.000 claims abstract description 34
239000007800 oxidant agent Substances 0.000 claims abstract description 16
238000002161 passivation Methods 0.000 claims abstract description 8
KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 18
MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 16
230000033116 oxidation-reduction process Effects 0.000 claims description 13
VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 10
QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 10
NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 8
BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 8
229910045601 alloy Inorganic materials 0.000 claims description 7
239000000956 alloy Substances 0.000 claims description 7
AQLJVWUFPCUVLO-UHFFFAOYSA-N urea hydrogen peroxide Chemical compound OO.NC(N)=O AQLJVWUFPCUVLO-UHFFFAOYSA-N 0.000 claims description 7
CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 6
150000004965 peroxy acids Chemical class 0.000 claims description 6
QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 5
239000000203 mixture Substances 0.000 claims description 5
229910052758 niobium Inorganic materials 0.000 claims description 5
239000010955 niobium Substances 0.000 claims description 5
GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 5
229910052715 tantalum Inorganic materials 0.000 claims description 5
GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 5
229910052720 vanadium Inorganic materials 0.000 claims description 5
229910052726 zirconium Inorganic materials 0.000 claims description 5
OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 4
KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 claims description 4
229910052770 Uranium Inorganic materials 0.000 claims description 4
229910000147 aluminium phosphate Inorganic materials 0.000 claims description 4
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
235000019253 formic acid Nutrition 0.000 claims description 4
239000001301 oxygen Substances 0.000 claims description 4
229910052760 oxygen Inorganic materials 0.000 claims description 4
229910021607 Silver chloride Inorganic materials 0.000 claims description 2
PEYVWSJAZONVQK-UHFFFAOYSA-N hydroperoxy(oxo)borane Chemical compound OOB=O PEYVWSJAZONVQK-UHFFFAOYSA-N 0.000 claims description 2
JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 claims description 2
150000004968 peroxymonosulfuric acids Chemical class 0.000 claims description 2
HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 claims description 2
LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims 3
JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 claims 2
PZYFJWVGRGEWGO-UHFFFAOYSA-N trisodium;hydrogen peroxide;trioxido(oxo)vanadium Chemical compound [Na+].[Na+].[Na+].OO.OO.OO.[O-][V]([O-])([O-])=O PZYFJWVGRGEWGO-UHFFFAOYSA-N 0.000 claims 1
230000015572 biosynthetic process Effects 0.000 abstract description 9
150000001875 compounds Chemical class 0.000 abstract description 9
230000001590 oxidative effect Effects 0.000 abstract description 8
150000003608 titanium Chemical class 0.000 abstract description 2
238000005259 measurement Methods 0.000 abstract 1
238000006243 chemical reaction Methods 0.000 description 5
239000000126 substance Substances 0.000 description 5
230000002378 acidificating effect Effects 0.000 description 4
150000007513 acids Chemical class 0.000 description 4
229910010062 TiCl3 Inorganic materials 0.000 description 3
238000000354 decomposition reaction Methods 0.000 description 3
150000002826 nitrites Chemical class 0.000 description 3
YONPGGFAJWQGJC-UHFFFAOYSA-K titanium(iii) chloride Chemical compound Cl[Ti](Cl)Cl YONPGGFAJWQGJC-UHFFFAOYSA-K 0.000 description 3
231100000331 toxic Toxicity 0.000 description 3
230000002588 toxic effect Effects 0.000 description 3
UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
229910010068 TiCl2 Inorganic materials 0.000 description 2
229910003074 TiCl4 Inorganic materials 0.000 description 2
238000004090 dissolution Methods 0.000 description 2
230000000694 effects Effects 0.000 description 2
239000001257 hydrogen Substances 0.000 description 2
229910052739 hydrogen Inorganic materials 0.000 description 2
229910001092 metal group alloy Inorganic materials 0.000 description 2
150000002823 nitrates Chemical class 0.000 description 2
229910017604 nitric acid Inorganic materials 0.000 description 2
235000008373 pickled product Nutrition 0.000 description 2
BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
ZWYDDDAMNQQZHD-UHFFFAOYSA-L titanium(ii) chloride Chemical compound [Cl-].[Cl-].[Ti+2] ZWYDDDAMNQQZHD-UHFFFAOYSA-L 0.000 description 2
DNYWZCXLKNTFFI-UHFFFAOYSA-N uranium Chemical compound [U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U] DNYWZCXLKNTFFI-UHFFFAOYSA-N 0.000 description 2
GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 2
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
102220513829 Pecanex-like protein 1_H20L_mutation Human genes 0.000 description 1
229910010342 TiF4 Inorganic materials 0.000 description 1
125000000129 anionic group Chemical group 0.000 description 1
230000008436 biogenesis Effects 0.000 description 1
239000000920 calcium hydroxide Substances 0.000 description 1
235000011116 calcium hydroxide Nutrition 0.000 description 1
238000005260 corrosion Methods 0.000 description 1
230000007797 corrosion Effects 0.000 description 1
238000009792 diffusion process Methods 0.000 description 1
ZOMNIUBKTOKEHS-UHFFFAOYSA-L dimercury dichloride Chemical class Cl[Hg][Hg]Cl ZOMNIUBKTOKEHS-UHFFFAOYSA-L 0.000 description 1
230000002349 favourable effect Effects 0.000 description 1
238000005242 forging Methods 0.000 description 1
239000003517 fume Substances 0.000 description 1
239000007789 gas Substances 0.000 description 1
150000004679 hydroxides Chemical class 0.000 description 1
238000011065 in-situ storage Methods 0.000 description 1
229910052500 inorganic mineral Inorganic materials 0.000 description 1
150000002500 ions Chemical class 0.000 description 1
238000009533 lab test Methods 0.000 description 1
208000020442 loss of weight Diseases 0.000 description 1
238000004519 manufacturing process Methods 0.000 description 1
238000005272 metallurgy Methods 0.000 description 1
150000002739 metals Chemical class 0.000 description 1
239000011707 mineral Substances 0.000 description 1
235000010755 mineral Nutrition 0.000 description 1
150000004005 nitrosamines Chemical class 0.000 description 1
230000001473 noxious effect Effects 0.000 description 1
230000003647 oxidation Effects 0.000 description 1
238000007254 oxidation reaction Methods 0.000 description 1
150000002978 peroxides Chemical class 0.000 description 1
229910052697 platinum Inorganic materials 0.000 description 1
231100000614 poison Toxicity 0.000 description 1
238000001556 precipitation Methods 0.000 description 1
239000007787 solid Substances 0.000 description 1
238000000859 sublimation Methods 0.000 description 1
230000008022 sublimation Effects 0.000 description 1
BAKALPNAEUOCDL-UHFFFAOYSA-N titanium hydrochloride Chemical compound Cl.[Ti] BAKALPNAEUOCDL-UHFFFAOYSA-N 0.000 description 1
XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 1
XROWMBWRMNHXMF-UHFFFAOYSA-J titanium tetrafluoride Chemical compound [F-].[F-].[F-].[F-].[Ti+4] XROWMBWRMNHXMF-UHFFFAOYSA-J 0.000 description 1
NLPMQGKZYAYAFE-UHFFFAOYSA-K titanium(iii) fluoride Chemical compound F[Ti](F)F NLPMQGKZYAYAFE-UHFFFAOYSA-K 0.000 description 1
239000003440 toxic substance Substances 0.000 description 1
LSGOVYNHVSXFFJ-UHFFFAOYSA-N vanadate(3-) Chemical compound [O-][V]([O-])([O-])=O LSGOVYNHVSXFFJ-UHFFFAOYSA-N 0.000 description 1
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1

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
- 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
- C23G1/10—Other heavy metals
- C23G1/106—Other heavy metals refractory metals

Landscapes

Chemical & Material Sciences (AREA)
Metallurgy (AREA)
General Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Materials Engineering (AREA)
Mechanical Engineering (AREA)
Chemical Kinetics & Catalysis (AREA)
Organic Chemistry (AREA)
Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Inorganic Compounds Of Heavy Metals (AREA)
Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
Materials For Medical Uses (AREA)
Chemical Treatment Of Metals (AREA)
Cosmetics (AREA)
Manufacture And Refinement Of Metals (AREA)

CA002037893A 1989-07-26 1990-07-25 Pickling process in an acid bath of metallic products containing titanium or at least one chemical element of the titanium family Expired - Fee Related CA2037893C (en)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
FR8910093A FR2650303B1 (fr)	1989-07-26	1989-07-26	Procede de decapage en bain acide de produits metalliques contenant du titane ou au moins un element chimique de la famille du titane
FR8910093		1989-07-26
PCT/FR1990/000564 WO1991002109A1 (fr)	1989-07-26	1990-07-25	Procede de decapage en bain acide de produits metalliques contenant du titane ou au moins un element chimique de la famille du titane

Publications (2)

Publication Number	Publication Date
CA2037893A1 CA2037893A1 (en)	1991-01-27
CA2037893C true CA2037893C (en)	2001-07-24

Family

ID=9384174

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA002037893A Expired - Fee Related CA2037893C (en)	1989-07-26	1990-07-25	Pickling process in an acid bath of metallic products containing titanium or at least one chemical element of the titanium family

Country Status (12)

Country	Link
EP (1)	EP0415807B1 (ja)
JP (1)	JP2945136B2 (ja)
KR (1)	KR100191864B1 (ja)
AT (1)	ATE113080T1 (ja)
AU (1)	AU634277B2 (ja)
CA (1)	CA2037893C (ja)
DE (1)	DE69013447T2 (ja)
ES (1)	ES2064686T3 (ja)
FI (1)	FI93371C (ja)
FR (1)	FR2650303B1 (ja)
RU (1)	RU2168560C2 (ja)
WO (1)	WO1991002109A1 (ja)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
IT1255855B (it) *	1992-10-12	1995-11-17	Cesare Pedrazzini	Processo di decapaggio e di passivazione per lamiere di titanio in nastro, senza impiego di acido nitrico.
JP3751324B2 (ja) *	1993-12-10	2006-03-01	忠弘大見	基体の表面洗浄方法及び表面洗浄剤
IT1288407B1 (it) *	1996-12-09	1998-09-22	Sviluppo Materiali Spa	Metodo per il decapaggio di prodotti in lega metallica contenente ferro e di titanio e sue leghe
IT1290947B1 (it) *	1997-02-25	1998-12-14	Sviluppo Materiali Spa	Metodo e dispositivo per il decapaggio di prodotti in lega metallica in assenza di acido nitrico e per il recupero di soluzioni esauste
RU2151822C1 (ru) *	1998-07-21	2000-06-27	Акционерное общество открытого типа "Уральский завод гражданской авиации"	Раствор для очистки от высокотемпературных отложений деталей из сплавов титана
US7611588B2 (en)	2004-11-30	2009-11-03	Ecolab Inc.	Methods and compositions for removing metal oxides
RU2496819C1 (ru) *	2012-05-30	2013-10-27	Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Национальный исследовательский Томский политехнический университет"	Травитель для титана
KR101669718B1 (ko)	2014-07-01	2016-10-27	김동회	입체 전란각을 갖는 부화기

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB360126A (en) *	1929-10-19	1931-11-05	Hirsch Kupfer & Messingwerke	Method of pickling oxidised metals
US3258429A (en) *	1963-09-19	1966-06-28	Ronald D Weed	Decontamination solution and method
JPS526853B2 (ja) *	1972-12-22	1977-02-25
DE2358683A1 (de) *	1973-11-24	1975-06-05	Kalman Von Dipl Phys Soos	Verfahren zum beizen und aetzen von metallen
JPS549120A (en) *	1977-06-24	1979-01-23	Tokai Electro Chemical Co	Method of controlling acid cleaning liquid for stainless steel
SU992179A1 (ru) *	1981-09-17	1983-01-30	Фрунзенский политехнический институт	Машина ударного действи
FR2587369B1 (fr) *	1985-09-19	1993-01-29	Ugine Gueugnon Sa	Procede de decapage acide de produits en acier inoxydable
JPS6277489A (ja) *	1985-09-30	1987-04-09	Nippon Mining Co Ltd	金属材料の酸洗法
JPS62109998A (ja) *	1985-11-07	1987-05-21	Kobe Steel Ltd	弁金属の陽極酸化前処理方法
EP0259533A1 (en) *	1986-09-11	1988-03-16	Eka Nobel Aktiebolag	Method of reducing the emission of nitrogen oxides from a liquid containing nitric acid

1989
- 1989-07-26 FR FR8910093A patent/FR2650303B1/fr not_active Expired - Fee Related
1990
- 1990-07-25 CA CA002037893A patent/CA2037893C/en not_active Expired - Fee Related
- 1990-07-25 ES ES90402144T patent/ES2064686T3/es not_active Expired - Lifetime
- 1990-07-25 WO PCT/FR1990/000564 patent/WO1991002109A1/fr not_active Ceased
- 1990-07-25 EP EP90402144A patent/EP0415807B1/fr not_active Expired - Lifetime
- 1990-07-25 RU SU4895068/12A patent/RU2168560C2/ru not_active IP Right Cessation
- 1990-07-25 DE DE69013447T patent/DE69013447T2/de not_active Expired - Fee Related
- 1990-07-25 AT AT90402144T patent/ATE113080T1/de not_active IP Right Cessation
- 1990-07-25 KR KR1019910700229A patent/KR100191864B1/ko not_active Expired - Fee Related
- 1990-07-25 JP JP2511471A patent/JP2945136B2/ja not_active Expired - Fee Related
- 1990-07-25 AU AU61684/90A patent/AU634277B2/en not_active Ceased
1991
- 1991-03-22 FI FI911398A patent/FI93371C/fi active

Also Published As

Publication number	Publication date
AU6168490A (en)	1991-03-11
RU2168560C2 (ru)	2001-06-10
FI93371C (fi)	1995-03-27
FR2650303A1 (fr)	1991-02-01
ES2064686T3 (es)	1995-02-01
KR100191864B1 (ko)	1999-06-15
JPH04501139A (ja)	1992-02-27
ATE113080T1 (de)	1994-11-15
FI93371B (fi)	1994-12-15
FI911398A0 (fi)	1991-03-22
JP2945136B2 (ja)	1999-09-06
KR920701524A (ko)	1992-08-11
AU634277B2 (en)	1993-02-18
EP0415807B1 (fr)	1994-10-19
FR2650303B1 (fr)	1993-12-10
CA2037893A1 (en)	1991-01-27
EP0415807A2 (fr)	1991-03-06
EP0415807A3 (en)	1991-03-20
DE69013447D1 (de)	1994-11-24
DE69013447T2 (de)	1995-02-23
WO1991002109A1 (fr)	1991-02-21

Legal Events

Date	Code	Title	Description
1997-03-13	EEER	Examination request
2004-07-26	MKLA	Lapsed

Publication	Publication Date	Title
US5338367A (en)	1994-08-16	Pickling process in an acid bath of metallic products containing titanium or at least one chemical element of the titanium family
RU2072397C1 (ru)	1997-01-27	Раствор и способ травления нержавеющей стали
KR100777171B1 (ko)	2007-11-16	강 및 스테인레스강을 위한 산세 또는 광택/부동태화 용액및 방법
KR100448972B1 (ko)	2004-12-08	강편및특히스테인리스강박판스트립의산세방법
CA2037893C (en)	2001-07-24	Pickling process in an acid bath of metallic products containing titanium or at least one chemical element of the titanium family
CA1119080A (en)	1982-03-02	Method for controlling pickling solution of stainless steel
US6068001A (en)	2000-05-30	Process for stainless steel pickling and passivation without using nitric acid
EP0505606A1 (en)	1992-09-30	Process for pickling and passivating stainless steel without using nitric acid
US5690748A (en)	1997-11-25	Process for the acid pickling of stainless steel products
JPH0138873B2 (ja)	1989-08-16
DE60015229D1 (de)	2004-12-02	Verfahren zum Beizen von rostfreien Stählen ohne Salpetersäure und in Anwesenheit von Chloridionen
EP1040211B1 (de)	2004-03-03	Verfahren zum beizen und passivieren von edelstahl
HUT65280A (en)	1994-05-02	Process for continuous titanium sheet pickling and passivation without using nitric acid
US7229506B2 (en)	2007-06-12	Process for pickling martensitic or ferritic stainless steel
US5332446A (en)	1994-07-26	Method for continuous pickling of steel materials on a treatment line
EP0968961A3 (en)	2001-08-22	Elemental chlorine-free conversion of waste HCl liquor by oxidation and concentration to form aqueous ferric chloride solution
EP0505753B1 (de)	1994-04-06	Verfahren zum Entgiften von Cyanhydrine und/oder Nitrile enthaltenden wässrigen Lösungen
JP3314410B2 (ja)	2002-08-12	シアン化合物の処理方法
JP2001269674A (ja)	2001-10-02	シアン含有排水の処理方法
SU1014988A1 (ru)	1983-04-30	Раствор дл травлени титана и его сплавов
JPH0233761B2 (ja)	1990-07-30
JPH09241875A (ja)	1997-09-16	チタンまたはチタン合金の酸洗液及び酸洗法
JPS59100275A (ja)	1984-06-09	金属酸洗における窒素酸化物ガス発生の抑制法
JPH1171104A (ja)	1999-03-16	安定化された過酸化水素水溶液
Chernavtseva	1983	The Kinetics of the Denitration of Electrical Steels in Solid State