DE2131017C3 - Äthylendiamin-mono-beta-propionsäuretri(methylenphosphonsäure) - Google Patents
Äthylendiamin-mono-beta-propionsäuretri(methylenphosphonsäure)Info
- Publication number
- DE2131017C3 DE2131017C3 DE19712131017 DE2131017A DE2131017C3 DE 2131017 C3 DE2131017 C3 DE 2131017C3 DE 19712131017 DE19712131017 DE 19712131017 DE 2131017 A DE2131017 A DE 2131017A DE 2131017 C3 DE2131017 C3 DE 2131017C3
- Authority
- DE
- Germany
- Prior art keywords
- acid
- ethylenediamine
- mono
- phosphonic acid
- propionic acid
- 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
Links
- 239000002253 acid Substances 0.000 title claims description 15
- XBDQKXXYIPTUBI-UHFFFAOYSA-N Propionic acid Substances CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 title description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 19
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 18
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical compound OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 description 18
- 239000000243 solution Substances 0.000 description 18
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 12
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 238000004140 cleaning Methods 0.000 description 7
- ISIJQEHRDSCQIU-UHFFFAOYSA-N tert-butyl 2,7-diazaspiro[4.5]decane-7-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CCCC11CNCC1 ISIJQEHRDSCQIU-UHFFFAOYSA-N 0.000 description 7
- 239000000203 mixture Substances 0.000 description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 5
- 238000002255 vaccination Methods 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 4
- -1 phosphonic acid compound Chemical class 0.000 description 4
- 239000011574 phosphorus Substances 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- FAIAAWCVCHQXDN-UHFFFAOYSA-N phosphorus trichloride Chemical compound ClP(Cl)Cl FAIAAWCVCHQXDN-UHFFFAOYSA-N 0.000 description 4
- 235000011121 sodium hydroxide Nutrition 0.000 description 4
- 239000000080 wetting agent Substances 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 229920000388 Polyphosphate Polymers 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 239000012459 cleaning agent Substances 0.000 description 3
- 239000012043 crude product Substances 0.000 description 3
- 239000003599 detergent Substances 0.000 description 3
- 239000008098 formaldehyde solution Substances 0.000 description 3
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 description 3
- 239000001205 polyphosphate Substances 0.000 description 3
- 235000011176 polyphosphates Nutrition 0.000 description 3
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 2
- RGHNJXZEOKUKBD-SQOUGZDYSA-N D-gluconic acid Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O RGHNJXZEOKUKBD-SQOUGZDYSA-N 0.000 description 2
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- DQTRYXANLKJLPK-UHFFFAOYSA-N chlorophosphonous acid Chemical compound OP(O)Cl DQTRYXANLKJLPK-UHFFFAOYSA-N 0.000 description 2
- 239000008139 complexing agent Substances 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 150000003009 phosphonic acids Chemical class 0.000 description 2
- 235000019260 propionic acid Nutrition 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 150000004685 tetrahydrates Chemical class 0.000 description 2
- 238000001665 trituration Methods 0.000 description 2
- LDHMAVIPBRSVRG-UHFFFAOYSA-O 1-methylnicotinamide Chemical compound C[N+]1=CC=CC(C(N)=O)=C1 LDHMAVIPBRSVRG-UHFFFAOYSA-O 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- QJSFUOBKBXVTMN-UHFFFAOYSA-N C=C.P(O)(O)=O Chemical compound C=C.P(O)(O)=O QJSFUOBKBXVTMN-UHFFFAOYSA-N 0.000 description 1
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RGHNJXZEOKUKBD-UHFFFAOYSA-N D-gluconic acid Natural products OCC(O)C(O)C(O)C(O)C(O)=O RGHNJXZEOKUKBD-UHFFFAOYSA-N 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- RVGRUAULSDPKGF-UHFFFAOYSA-N Poloxamer Chemical compound C1CO1.CC1CO1 RVGRUAULSDPKGF-UHFFFAOYSA-N 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 235000011054 acetic acid Nutrition 0.000 description 1
- 150000001243 acetic acids Chemical class 0.000 description 1
- 125000005396 acrylic acid ester group Chemical group 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 239000012496 blank sample Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229960001484 edetic acid Drugs 0.000 description 1
- NFDRPXJGHKJRLJ-UHFFFAOYSA-N edtmp Chemical compound OP(O)(=O)CN(CP(O)(O)=O)CCN(CP(O)(O)=O)CP(O)(O)=O NFDRPXJGHKJRLJ-UHFFFAOYSA-N 0.000 description 1
- CXFNDRDTGTUMKK-UHFFFAOYSA-N ethane-1,2-diamine;propanoic acid Chemical compound NCCN.CCC(O)=O CXFNDRDTGTUMKK-UHFFFAOYSA-N 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000174 gluconic acid Substances 0.000 description 1
- 235000012208 gluconic acid Nutrition 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 238000011081 inoculation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000012263 liquid product Substances 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- OJURWUUOVGOHJZ-UHFFFAOYSA-N methyl 2-[(2-acetyloxyphenyl)methyl-[2-[(2-acetyloxyphenyl)methyl-(2-methoxy-2-oxoethyl)amino]ethyl]amino]acetate Chemical compound C=1C=CC=C(OC(C)=O)C=1CN(CC(=O)OC)CCN(CC(=O)OC)CC1=CC=CC=C1OC(C)=O OJURWUUOVGOHJZ-UHFFFAOYSA-N 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- CAAULPUQFIIOTL-UHFFFAOYSA-L methyl phosphate(2-) Chemical compound COP([O-])([O-])=O CAAULPUQFIIOTL-UHFFFAOYSA-L 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 150000003017 phosphorus Chemical class 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229940088417 precipitated calcium carbonate Drugs 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- SOBHUZYZLFQYFK-UHFFFAOYSA-K trisodium;hydroxy-[[phosphonatomethyl(phosphonomethyl)amino]methyl]phosphinate Chemical compound [Na+].[Na+].[Na+].OP(O)(=O)CN(CP(O)([O-])=O)CP([O-])([O-])=O SOBHUZYZLFQYFK-UHFFFAOYSA-K 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/36—Organic compounds containing phosphorus
- C11D3/365—Organic compounds containing phosphorus containing carboxyl groups
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
- C02F5/14—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing phosphorus
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/28—Phosphorus compounds with one or more P—C bonds
- C07F9/38—Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)]
- C07F9/3804—Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)] not used, see subgroups
- C07F9/3808—Acyclic saturated acids which can have further substituents on alkyl
- C07F9/3817—Acids containing the structure (RX)2P(=X)-alk-N...P (X = O, S, Se)
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- General Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Detergent Compositions (AREA)
Priority Applications (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19712131017 DE2131017C3 (de) | 1971-06-23 | 1971-06-23 | Äthylendiamin-mono-beta-propionsäuretri(methylenphosphonsäure) |
| IT2211272A IT950387B (it) | 1971-06-23 | 1972-03-20 | Acido etilendiammino mono beta propionico tri metilenfosfonico |
| ES401717A ES401717A1 (es) | 1971-06-23 | 1972-04-13 | Procedimiento para la preparacion de etilendiamino - mono- beta-acido propionico-tri-(acido metilenfosfonico). |
| BE782211A BE782211A (fr) | 1971-06-23 | 1972-04-17 | Acide ethylenediamino-mono-beta-propionique-tri- (methylenephosphonique), son procede de preparation et son utilisation |
| NL7207991A NL7207991A (enExample) | 1971-06-23 | 1972-06-12 | |
| AT515972A AT310188B (de) | 1971-06-23 | 1972-06-15 | Verfahren zur Herstellung der neuen Äthylendiamin-mono-ß-propionsäure-tri-(methylenphosphonsäure) |
| AT940472A AT323304B (de) | 1971-06-23 | 1972-06-15 | Verwendung von äthylendiamin-mono-beta-propionsäure-tri-(methylenphosphosäure) und ihrer alkalisalze |
| FR7222354A FR2143190A1 (en) | 1971-06-23 | 1972-06-21 | Ethylene diamino-mono-beta-propionic-tri(methylene phosphonic) - acid - as complexant for polyvalent metal ions, inhibiting stony depo |
| CH938672A CH571535A5 (enExample) | 1971-06-23 | 1972-06-22 | |
| AT236173A AT317253B (de) | 1971-06-23 | 1973-03-16 | Verfahren zur Herstellung der neuen Äthylendiamin-mono-β-propionsäure-tri-(methylenphosphonsäure) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19712131017 DE2131017C3 (de) | 1971-06-23 | 1971-06-23 | Äthylendiamin-mono-beta-propionsäuretri(methylenphosphonsäure) |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2131017A1 DE2131017A1 (de) | 1972-12-28 |
| DE2131017B2 DE2131017B2 (de) | 1973-07-19 |
| DE2131017C3 true DE2131017C3 (de) | 1974-02-28 |
Family
ID=5811485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19712131017 Expired DE2131017C3 (de) | 1971-06-23 | 1971-06-23 | Äthylendiamin-mono-beta-propionsäuretri(methylenphosphonsäure) |
Country Status (8)
| Country | Link |
|---|---|
| AT (2) | AT310188B (enExample) |
| BE (1) | BE782211A (enExample) |
| CH (1) | CH571535A5 (enExample) |
| DE (1) | DE2131017C3 (enExample) |
| ES (1) | ES401717A1 (enExample) |
| FR (1) | FR2143190A1 (enExample) |
| IT (1) | IT950387B (enExample) |
| NL (1) | NL7207991A (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4251492A (en) | 1978-06-07 | 1981-02-17 | Ciba-Geigy Corporation | Purification process |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4415503A (en) * | 1982-09-28 | 1983-11-15 | Stauffer Chemical Company | Method for preparation of N-phosphonomethylglycine |
| EP1932850A1 (en) * | 2006-12-11 | 2008-06-18 | Thermphos Trading GmbH | Phosphonate compounds |
-
1971
- 1971-06-23 DE DE19712131017 patent/DE2131017C3/de not_active Expired
-
1972
- 1972-03-20 IT IT2211272A patent/IT950387B/it active
- 1972-04-13 ES ES401717A patent/ES401717A1/es not_active Expired
- 1972-04-17 BE BE782211A patent/BE782211A/xx unknown
- 1972-06-12 NL NL7207991A patent/NL7207991A/xx not_active Application Discontinuation
- 1972-06-15 AT AT515972A patent/AT310188B/de active
- 1972-06-15 AT AT940472A patent/AT323304B/de not_active IP Right Cessation
- 1972-06-21 FR FR7222354A patent/FR2143190A1/fr active Granted
- 1972-06-22 CH CH938672A patent/CH571535A5/xx not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4251492A (en) | 1978-06-07 | 1981-02-17 | Ciba-Geigy Corporation | Purification process |
Also Published As
| Publication number | Publication date |
|---|---|
| AT310188B (de) | 1973-09-25 |
| BE782211A (fr) | 1972-08-16 |
| NL7207991A (enExample) | 1972-12-28 |
| ES401717A1 (es) | 1975-03-16 |
| FR2143190B1 (enExample) | 1977-12-23 |
| IT950387B (it) | 1973-06-20 |
| AT323304B (de) | 1975-07-10 |
| DE2131017A1 (de) | 1972-12-28 |
| DE2131017B2 (de) | 1973-07-19 |
| CH571535A5 (enExample) | 1976-01-15 |
| FR2143190A1 (en) | 1973-02-02 |
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