CA1077176A - Procede pour neutraliser les residus d'acide sulfurique - Google Patents

Procede pour neutraliser les residus d'acide sulfurique

Info

Publication number: CA1077176A
Authority: CA; Canada
Prior art keywords: slurry; asbestos tailings; magnesium sulfate; filtrate; sulfate
Prior art date: 1977-04-04
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

CA275,436A

Other languages

English (en)

Inventor

Meguru Nagamori

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.)

Centre de Recherche Industrielle du Quebec CRIQ

Original Assignee

Centre de Recherche Industrielle du Quebec CRIQ

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.)

1977-04-04

Filing date

1977-04-04

Publication date

1980-05-06

1977-04-04 Application filed by Centre de Recherche Industrielle du Quebec CRIQ filed Critical Centre de Recherche Industrielle du Quebec CRIQ

1977-04-04 Priority to CA275,436A priority Critical patent/CA1077176A/fr

1980-05-06 Application granted granted Critical

1980-05-06 Publication of CA1077176A publication Critical patent/CA1077176A/fr

Status Expired legal-status Critical Current

Links

QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid group Chemical class S(O)(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 title claims abstract description 57
239000002699 waste material Substances 0.000 title claims abstract description 35
238000000034 method Methods 0.000 title claims abstract description 34
230000003472 neutralizing effect Effects 0.000 title claims abstract description 9
CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims abstract description 90
239000002002 slurry Substances 0.000 claims abstract description 80
239000010425 asbestos Substances 0.000 claims abstract description 59
229910052895 riebeckite Inorganic materials 0.000 claims abstract description 59
229910052943 magnesium sulfate Inorganic materials 0.000 claims abstract description 45
235000019341 magnesium sulphate Nutrition 0.000 claims abstract description 45
238000006386 neutralization reaction Methods 0.000 claims abstract description 39
239000000706 filtrate Substances 0.000 claims abstract description 33
230000001590 oxidative effect Effects 0.000 claims abstract description 8
CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 66
239000000395 magnesium oxide Substances 0.000 claims description 36
229960003390 magnesium sulfate Drugs 0.000 claims description 34
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 26
238000001914 filtration Methods 0.000 claims description 14
239000011651 chromium Substances 0.000 claims description 12
-1 S04 anions Chemical class 0.000 claims description 11
229910052804 chromium Inorganic materials 0.000 claims description 11
229910052742 iron Inorganic materials 0.000 claims description 11
150000001768 cations Chemical class 0.000 claims description 9
PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 7
229910001385 heavy metal Inorganic materials 0.000 claims description 7
CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 6
239000012141 concentrate Substances 0.000 claims description 5
239000002245 particle Substances 0.000 claims description 5
229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 4
229910052759 nickel Inorganic materials 0.000 claims description 4
RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 claims description 2
229910000360 iron(III) sulfate Inorganic materials 0.000 claims description 2
239000006148 magnetic separator Substances 0.000 claims description 2
VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 abstract description 19
239000000347 magnesium hydroxide Substances 0.000 abstract description 19
229910001862 magnesium hydroxide Inorganic materials 0.000 abstract description 19
235000012254 magnesium hydroxide Nutrition 0.000 description 18
239000002253 acid Substances 0.000 description 17
239000011572 manganese Substances 0.000 description 15
239000011777 magnesium Substances 0.000 description 14
239000012535 impurity Substances 0.000 description 11
229910052749 magnesium Inorganic materials 0.000 description 11
238000005273 aeration Methods 0.000 description 10
GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 8
239000011575 calcium Substances 0.000 description 8
FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 7
PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 7
235000001055 magnesium Nutrition 0.000 description 7
229940091250 magnesium supplement Drugs 0.000 description 7
229910052748 manganese Inorganic materials 0.000 description 7
239000000203 mixture Substances 0.000 description 7
238000003756 stirring Methods 0.000 description 7
MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 6
VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 6
XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 6
150000004679 hydroxides Chemical class 0.000 description 6
AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 6
230000003647 oxidation Effects 0.000 description 6
238000007254 oxidation reaction Methods 0.000 description 6
239000002244 precipitate Substances 0.000 description 6
238000001704 evaporation Methods 0.000 description 5
230000008020 evaporation Effects 0.000 description 5
239000000126 substance Substances 0.000 description 5
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
229940077744 antacid containing magnesium compound Drugs 0.000 description 4
OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 4
238000006243 chemical reaction Methods 0.000 description 4
239000013078 crystal Substances 0.000 description 4
238000010438 heat treatment Methods 0.000 description 4
239000002440 industrial waste Substances 0.000 description 4
150000002681 magnesium compounds Chemical class 0.000 description 4
229910052751 metal Inorganic materials 0.000 description 4
239000002184 metal Substances 0.000 description 4
235000012239 silicon dioxide Nutrition 0.000 description 4
239000007787 solid Substances 0.000 description 4
150000003467 sulfuric acid derivatives Chemical class 0.000 description 4
239000010936 titanium Chemical class 0.000 description 4
239000004408 titanium dioxide Substances 0.000 description 4
VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 3
HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
229910052782 aluminium Inorganic materials 0.000 description 3
XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical class [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
238000004458 analytical method Methods 0.000 description 3
229910052791 calcium Inorganic materials 0.000 description 3
238000004090 dissolution Methods 0.000 description 3
230000008030 elimination Effects 0.000 description 3
238000003379 elimination reaction Methods 0.000 description 3
229910001447 ferric ion Inorganic materials 0.000 description 3
229960002163 hydrogen peroxide Drugs 0.000 description 3
ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 3
239000001095 magnesium carbonate Substances 0.000 description 3
235000014380 magnesium carbonate Nutrition 0.000 description 3
229910000021 magnesium carbonate Inorganic materials 0.000 description 3
238000004519 manufacturing process Methods 0.000 description 3
230000007935 neutral effect Effects 0.000 description 3
239000000047 product Substances 0.000 description 3
238000000746 purification Methods 0.000 description 3
238000011084 recovery Methods 0.000 description 3
RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 3
239000000377 silicon dioxide Substances 0.000 description 3
239000002910 solid waste Substances 0.000 description 3
229910052720 vanadium Inorganic materials 0.000 description 3
OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
229910000831 Steel Inorganic materials 0.000 description 2
RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical class [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
150000007513 acids Chemical class 0.000 description 2
230000015572 biosynthetic process Effects 0.000 description 2
230000005587 bubbling Effects 0.000 description 2
159000000007 calcium salts Chemical class 0.000 description 2
239000007795 chemical reaction product Substances 0.000 description 2
238000000605 extraction Methods 0.000 description 2
229910001448 ferrous ion Inorganic materials 0.000 description 2
239000011790 ferrous sulphate Substances 0.000 description 2
235000003891 ferrous sulphate Nutrition 0.000 description 2
239000003337 fertilizer Substances 0.000 description 2
229910052736 halogen Inorganic materials 0.000 description 2
150000002367 halogens Chemical class 0.000 description 2
BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 2
238000002386 leaching Methods 0.000 description 2
150000002739 metals Chemical class 0.000 description 2
238000005554 pickling Methods 0.000 description 2
239000002994 raw material Substances 0.000 description 2
150000003839 salts Chemical class 0.000 description 2
239000010959 steel Substances 0.000 description 2
OGWLTJRQYVEDMR-UHFFFAOYSA-F tetramagnesium;tetracarbonate Chemical compound [Mg+2].[Mg+2].[Mg+2].[Mg+2].[O-]C([O-])=O.[O-]C([O-])=O.[O-]C([O-])=O.[O-]C([O-])=O OGWLTJRQYVEDMR-UHFFFAOYSA-F 0.000 description 2
229910052719 titanium Inorganic materials 0.000 description 2
LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical class [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 2
238000003911 water pollution Methods 0.000 description 2
238000005303 weighing Methods 0.000 description 2
QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
JVTAAEKCZFNVCJ-UHFFFAOYSA-M Lactate Chemical compound CC(O)C([O-])=O JVTAAEKCZFNVCJ-UHFFFAOYSA-M 0.000 description 1
MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 1
XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
239000000654 additive Substances 0.000 description 1
230000000996 additive effect Effects 0.000 description 1
229910052783 alkali metal Inorganic materials 0.000 description 1
150000001340 alkali metals Chemical class 0.000 description 1
239000004411 aluminium Substances 0.000 description 1
BIGPRXCJEDHCLP-UHFFFAOYSA-N ammonium bisulfate Chemical compound [NH4+].OS([O-])(=O)=O BIGPRXCJEDHCLP-UHFFFAOYSA-N 0.000 description 1
239000000908 ammonium hydroxide Substances 0.000 description 1
BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
229910052921 ammonium sulfate Inorganic materials 0.000 description 1
235000011130 ammonium sulphate Nutrition 0.000 description 1
229910052925 anhydrite Inorganic materials 0.000 description 1
150000001450 anions Chemical class 0.000 description 1
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
238000000975 co-precipitation Methods 0.000 description 1
229910017052 cobalt Inorganic materials 0.000 description 1
239000010941 cobalt Substances 0.000 description 1
GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
229910052681 coesite Inorganic materials 0.000 description 1
238000011109 contamination Methods 0.000 description 1
229910052802 copper Inorganic materials 0.000 description 1
239000010949 copper Substances 0.000 description 1
229910052906 cristobalite Inorganic materials 0.000 description 1
238000002425 crystallisation Methods 0.000 description 1
230000008025 crystallization Effects 0.000 description 1
230000007423 decrease Effects 0.000 description 1
230000001419 dependent effect Effects 0.000 description 1
230000002542 deteriorative effect Effects 0.000 description 1
DCNGHDHEMTUKNP-UHFFFAOYSA-L diazanium;magnesium;disulfate Chemical compound [NH4+].[NH4+].[Mg+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DCNGHDHEMTUKNP-UHFFFAOYSA-L 0.000 description 1
230000029087 digestion Effects 0.000 description 1
239000000835 fiber Substances 0.000 description 1
239000007789 gas Substances 0.000 description 1
238000001033 granulometry Methods 0.000 description 1
150000004820 halides Chemical class 0.000 description 1
239000012770 industrial material Substances 0.000 description 1
SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
239000007788 liquid Substances 0.000 description 1
159000000003 magnesium salts Chemical class 0.000 description 1
WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
239000000463 material Substances 0.000 description 1
239000007800 oxidant agent Substances 0.000 description 1
229910052760 oxygen Inorganic materials 0.000 description 1
239000001301 oxygen Substances 0.000 description 1
238000006213 oxygenation reaction Methods 0.000 description 1
150000002978 peroxides Chemical class 0.000 description 1
239000000049 pigment Substances 0.000 description 1
238000002360 preparation method Methods 0.000 description 1
238000011403 purification operation Methods 0.000 description 1
229920006395 saturated elastomer Polymers 0.000 description 1
229910052710 silicon Inorganic materials 0.000 description 1
239000010703 silicon Substances 0.000 description 1
239000011734 sodium Substances 0.000 description 1
238000001179 sorption measurement Methods 0.000 description 1
229910052682 stishovite Inorganic materials 0.000 description 1
239000011593 sulfur Substances 0.000 description 1
229910052717 sulfur Inorganic materials 0.000 description 1
230000008719 thickening Effects 0.000 description 1
229910052905 tridymite Inorganic materials 0.000 description 1
238000005406 washing Methods 0.000 description 1

Classifications

- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D3/00—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
- A62D3/30—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents
- A62D3/36—Detoxification by using acid or alkaline reagents
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F5/00—Compounds of magnesium
- C01F5/40—Magnesium sulfates
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/44—Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
- A62D2101/40—Inorganic substances
- A62D2101/41—Inorganic fibres, e.g. asbestos
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
- A62D2101/40—Inorganic substances
- A62D2101/47—Inorganic substances containing oxygen, sulfur, selenium or tellurium, i.e. chalcogen
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Chemical Kinetics & Catalysis (AREA)
Geology (AREA)
Engineering & Computer Science (AREA)
Life Sciences & Earth Sciences (AREA)
General Chemical & Material Sciences (AREA)
Health & Medical Sciences (AREA)
Geochemistry & Mineralogy (AREA)
General Health & Medical Sciences (AREA)
Business, Economics & Management (AREA)
Emergency Management (AREA)
Environmental & Geological Engineering (AREA)
General Life Sciences & Earth Sciences (AREA)
Toxicology (AREA)
Inorganic Chemistry (AREA)
Manufacturing & Machinery (AREA)
Materials Engineering (AREA)
Mechanical Engineering (AREA)
Metallurgy (AREA)
Removal Of Specific Substances (AREA)

CA275,436A 1977-04-04 1977-04-04 Procede pour neutraliser les residus d'acide sulfurique Expired CA1077176A (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
CA275,436A CA1077176A (fr)	1977-04-04	1977-04-04	Procede pour neutraliser les residus d'acide sulfurique

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA275,436A CA1077176A (fr)	1977-04-04	1977-04-04	Procede pour neutraliser les residus d'acide sulfurique

Publications (1)

Publication Number	Publication Date
CA1077176A true CA1077176A (fr)	1980-05-06

Family

ID=4108311

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA275,436A Expired CA1077176A (fr)	1977-04-04	1977-04-04	Procede pour neutraliser les residus d'acide sulfurique

Country Status (1)

Country	Link
CA (1)	CA1077176A (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0348502A4 (fr) *	1988-01-07	1990-05-14	Song-Tien Chou	Decomposition d'amiante.
WO2013037649A1 (fr) *	2011-09-13	2013-03-21	Tioxide Europe Sas	Sulfate de magnésium
EP3473738A1 (fr) *	2017-10-20	2019-04-24	CrisolteQ Ltd	Procédé de récupération des composants par le décapage d'un résidu d'acide
CN110408794A (zh) *	2019-08-14	2019-11-05	白鹰	石棉矿清洁生产工艺
EP3839100A1 (fr)	2019-12-19	2021-06-23	CrisolteQ Ltd	Procédé de traitement de résidus d'acide de décapage
CN113620688A (zh) *	2021-09-07	2021-11-09	中科镁基（北京）科技有限公司	一种利用石棉尾矿制备建筑材料的方法
CN118685620A (zh) *	2024-07-01	2024-09-24	重庆理工大学	一种铬铁矿无钙焙烧渣的综合处理方法

1977
- 1977-04-04 CA CA275,436A patent/CA1077176A/fr not_active Expired

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0348502A4 (fr) *	1988-01-07	1990-05-14	Song-Tien Chou	Decomposition d'amiante.
WO2013037649A1 (fr) *	2011-09-13	2013-03-21	Tioxide Europe Sas	Sulfate de magnésium
JP2014530160A (ja) *	2011-09-13	2014-11-17	チオキシド・ユーロプ・エスエイエス	硫酸マグネシウム
US9073797B2 (en)	2011-09-13	2015-07-07	Tioxide Europe Sas	Magnesium sulphate
EP3473738A1 (fr) *	2017-10-20	2019-04-24	CrisolteQ Ltd	Procédé de récupération des composants par le décapage d'un résidu d'acide
CN109850928A (zh) *	2017-10-20	2019-06-07	克里硕泰丘有限公司	从酸洗残余物中回收组分的方法
US10526684B2 (en)	2017-10-20	2020-01-07	Crisolteq Ltd	Process for recovering components from pickling acid residue
CN110408794A (zh) *	2019-08-14	2019-11-05	白鹰	石棉矿清洁生产工艺
EP3839100A1 (fr)	2019-12-19	2021-06-23	CrisolteQ Ltd	Procédé de traitement de résidus d'acide de décapage
US11254585B2 (en)	2019-12-19	2022-02-22	Crisolteq Ltd	Method for treating pickling acid residue
CN113620688A (zh) *	2021-09-07	2021-11-09	中科镁基（北京）科技有限公司	一种利用石棉尾矿制备建筑材料的方法
CN118685620A (zh) *	2024-07-01	2024-09-24	重庆理工大学	一种铬铁矿无钙焙烧渣的综合处理方法

Legal Events

Date	Code	Title	Description
1997-05-06	MKEX	Expiry

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