[go: up one dir, main page]

GB1126232A - A method of treating a waste acid solution obtained from pickling silicon steel sheets - Google Patents

A method of treating a waste acid solution obtained from pickling silicon steel sheets

Info

Publication number
GB1126232A
GB1126232A GB4197065A GB4197065A GB1126232A GB 1126232 A GB1126232 A GB 1126232A GB 4197065 A GB4197065 A GB 4197065A GB 4197065 A GB4197065 A GB 4197065A GB 1126232 A GB1126232 A GB 1126232A
Authority
GB
United Kingdom
Prior art keywords
acid
hydrofluoric
fluosilicic
steel sheets
silicon steel
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
Application number
GB4197065A
Inventor
Yukinori Hiwatashi
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.)
YAWATA CHEMICAL ENGINEERING CO
YAWATA CHEMICAL ENGINEERING Co Ltd
Yawata Iron and Steel Co Ltd
Original Assignee
YAWATA CHEMICAL ENGINEERING CO
YAWATA CHEMICAL ENGINEERING Co Ltd
Yawata Iron and Steel Co Ltd
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.)
Filing date
Publication date
Application filed by YAWATA CHEMICAL ENGINEERING CO, YAWATA CHEMICAL ENGINEERING Co Ltd, Yawata Iron and Steel Co Ltd filed Critical YAWATA CHEMICAL ENGINEERING CO
Publication of GB1126232A publication Critical patent/GB1126232A/en
Expired legal-status Critical Current

Links

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
    • C23G1/36—Regeneration of waste pickling liquors
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/69—Sulfur trioxide; Sulfuric acid
    • C01B17/90—Separation; Purification
    • C01B17/901—Recovery from spent acids containing metallic ions, e.g. hydrolysis acids, pickling acids
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B7/00—Halogens; Halogen acids
    • C01B7/19—Fluorine; Hydrogen fluoride
    • C01B7/191—Hydrogen fluoride

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Removal Of Specific Substances (AREA)

Abstract

1,126,232. Recovering acid values. YAWATA IRON & STEEL CO. Ltd., and YAWATA CHEMICAL ENG. CO. Ltd. 4 Oct., 1965, No. 41970/65. Heading C1A. A method of treating a waste acid solution containing iron and fluosilicic acid in a solution obtained from pickling silicon steel sheets in a solution of sulphuric acid containing hydrofluoric acid, comprises evaporating hydrofluoric acid and fluosilicic acid from the waste acid and collecting them together with water vapour in the liquid form, filtering the residual liquor, concentrated by the evaporation process, to obtain a filter cake consisting mainly of crystals of ferrous sulphate and a mother liquid of sulphuric acid, and passing the distillate comprising hydrofluoric and fluosilicic acid through an anion exchange resin of the -OH type until the resin becomes saturated with fluosilicic acid radical and fluosilic acid appears in the effluent, whereby an aqueous solution of hydrofluoric acid containing no fluosilioic acid is obtained. The aqueous solution of hydrofluoric acid, may be mixed with an aqueous solution of sulphuric acid obtained by filtering the evaporation residue, and used for pickling silicon steel sheets. The exchange resin may be regenerated by washing firstly with hydrochloric and/or sulphuric acid and then with sodium hydroxide.
GB4197065A 1965-10-26 1965-10-04 A method of treating a waste acid solution obtained from pickling silicon steel sheets Expired GB1126232A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEY0000993 1965-10-26

Publications (1)

Publication Number Publication Date
GB1126232A true GB1126232A (en) 1968-09-05

Family

ID=7617465

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4197065A Expired GB1126232A (en) 1965-10-26 1965-10-04 A method of treating a waste acid solution obtained from pickling silicon steel sheets

Country Status (2)

Country Link
DE (1) DE1546225C3 (en)
GB (1) GB1126232A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4952386A (en) * 1988-05-20 1990-08-28 Athens Corporation Method and apparatus for purifying hydrogen fluoride
FR2670508A1 (en) * 1990-12-13 1992-06-19 Siderurgie Fse Inst Rech PROCESS FOR SEPARATING THE SILICON COMPOUNDS CONTAINED IN A HYDROCHLORIC STRIPPING BATH OF PARTS, PARTICULARLY STEEL SHEETS.
CN104047009A (en) * 2014-06-28 2014-09-17 南通久信石墨科技开发有限公司 Recovery process device of ferrous chloride in steel pickling liquid
CN105883730A (en) * 2016-05-05 2016-08-24 中钛集团洛阳市裕星化工有限公司 Method for concentrating waste acid in titanium dioxide production based on sulfuric acid process

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106430993A (en) * 2016-08-30 2017-02-22 江西沃格光电股份有限公司 Acid pickling method for glasses and acid pickling device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4952386A (en) * 1988-05-20 1990-08-28 Athens Corporation Method and apparatus for purifying hydrogen fluoride
FR2670508A1 (en) * 1990-12-13 1992-06-19 Siderurgie Fse Inst Rech PROCESS FOR SEPARATING THE SILICON COMPOUNDS CONTAINED IN A HYDROCHLORIC STRIPPING BATH OF PARTS, PARTICULARLY STEEL SHEETS.
US5250275A (en) * 1990-12-13 1993-10-05 Sollac Process for separating silicon compounds contained in a hydrochloric bath used for pickling
CN104047009A (en) * 2014-06-28 2014-09-17 南通久信石墨科技开发有限公司 Recovery process device of ferrous chloride in steel pickling liquid
CN104047009B (en) * 2014-06-28 2016-07-27 南通久信石墨科技开发有限公司 The recovery process device of ferrous chloride in acid washing rolled steel liquid
CN105883730A (en) * 2016-05-05 2016-08-24 中钛集团洛阳市裕星化工有限公司 Method for concentrating waste acid in titanium dioxide production based on sulfuric acid process
CN105883730B (en) * 2016-05-05 2018-01-19 焦作市裕盛钛业有限公司 A kind of method of waste acid concentration in sulfuric acid method titanium pigment production

Also Published As

Publication number Publication date
DE1546225A1 (en) 1969-12-11
DE1546225B2 (en) 1973-03-01
DE1546225C3 (en) 1973-10-11

Similar Documents

Publication Publication Date Title
SE8400120L (en) SET TO REGENATE BETIC ACID
GB1361532A (en) Treatment of aluminium waste liquors
GB1126232A (en) A method of treating a waste acid solution obtained from pickling silicon steel sheets
GB1478345A (en) Process for purifying water containing suspended matter
US3712940A (en) Method for eliminating dumping of waste pickle liquor and conversion thereof into useful products
US2536703A (en) Use of alkali metal ferrate as a decolorizing agent for caustic solutions
FR2033998A5 (en) Recovering columbium
GB1211417A (en) Process for the production of pure lactulose
JPS5581782A (en) Treatment method for flue gas desulfurization waste water
GB1322119A (en) Recovery of ammonium sulphate
SU460611A3 (en) The method of producing alkali metal fluorosilicates
GB516706A (en) Improvements in and relating to the flocculation of sewage suspensions and sludges
Kimure Treatment of waste liquor from titanium dioxide manufacturing
GB749662A (en) Process for the purification of liquids containing colloidal or suspended substances in very fine division
SU72264A1 (en) A method of processing nitrous gases
GB1343847A (en) Removal of non-sugar material from crude sugar solutions
Pobis Chemical purification of kraft process wastes by means of aluminium sulphate
GB824831A (en) Improvements in or relating to methods of restoring liquid-purifying media to a condition suitable for reuse
GB1155957A (en) Phosphoric Acid Purification Process.
SU1264968A1 (en) Method of regeneration of filtering cloth
DE431618C (en) Process for the production of magnesium carbonate with simultaneous production of ammonium salts
Oberrosler Sludge from iron manufacturing industries
JPS5465169A (en) Settling method for iron hydroxide
Fijihira Aluminum Sulfate Obtained From Waste Water of Anodic Oxidation
GB290174A (en)