GB1032378A - Improvements in or relating to the production of phosphonic acids and their salts - Google Patents

Improvements in or relating to the production of phosphonic acids and their salts

Info

Publication number
GB1032378A
GB1032378A GB4390164A GB4390164A GB1032378A GB 1032378 A GB1032378 A GB 1032378A GB 4390164 A GB4390164 A GB 4390164A GB 4390164 A GB4390164 A GB 4390164A GB 1032378 A GB1032378 A GB 1032378A
Authority
GB
United Kingdom
Prior art keywords
acid
reaction
oxide
water
gas
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
GB4390164A
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.)
Henkel AG and Co KGaA
Original Assignee
Henkel AG and Co KGaA
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 Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Publication of GB1032378A publication Critical patent/GB1032378A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02Phosphorus compounds
    • C07F9/28Phosphorus compounds with one or more P—C bonds
    • C07F9/38Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)]
    • C07F9/3804Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)] not used, see subgroups
    • C07F9/3839Polyphosphonic acids
    • C07F9/386Polyphosphonic acids containing hydroxy substituents in the hydrocarbon radicals
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/08Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
    • C02F5/10Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
    • C02F5/14Treatment 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)

Abstract

Water is softened by the addition of phosphonic acids or phosphonates containing at least 2 P atoms in the molecule, e.g. of the formula <FORM:1032378/C1/1> where R is alkyl or aryl prepared in specified manner (see Division C2). In an example a compound of the above formula where R is methyl was found to inhibit the precipitation of CaCO3 when a soda solution is added to hard water. Also, precipitation of Fe3+ ions as ferric hydroxide from water containing Fe3+ ions is chlorinated hydrocarbon, but particularly nitrogen, introduced to the system via conduits 8 may serve (a) to convey the oxide, e.g. silica, introduced from separators or storage bins 12 to the reaction vessel 1 via conduit 11, (b) as carrier for A via conduit 11, (c) as carrier for and to dilute, the steam, preferably 100 g./m.3 gas, via 10 to conduit 11, and (d) after prior heating in 9, as source of part of the heat for the reaction. These may advantageously be combined by heating the gas by burning an oxyhydrogen flame, and using this heated gas to convey the reactants, or, in the absence of inert gas steam alone may serve this purpose. The reaction vessel is a vertical tubular furnace 1, heated internally by electric heating elements 6. The reactants, heated to 200-800 DEG C., ascend in suspension and the treated oxide passes from settling zone 2 to outlet 3, contact with oxygen being avoided before cooling below 200 DEG C. Gases and untreated oxide are continuously removed via 4 to separators 12 for recycling of the oxide.ALSO:Phosphonic acids or salts thereof containing 2 P atoms in the molecule are obtained from mixtures formed by reaction of carboxy type acylating agents with phosphorous acid or by reaction of PCl3 with carboxylic acids, by treating the mixture with C1-C5 alkanols and (a) distilling off the volatile substances formed and, if desired, converting the acids into the salts, or (b) separating the alcoholic layer after addition of aqueous base. The preferred alkanols are methanol and ethanol. Examples are given in which acetic acid, caproic acid, capric acid, palmitic acid, stearic acid and benzoic acid is reacted with PCl3 and in which acetic anhydride or acetyl chloride is reacted with phosphorous acid. The products may be used in water-softening processes (see Division C1).
GB4390164A 1963-11-02 1964-10-28 Improvements in or relating to the production of phosphonic acids and their salts Expired GB1032378A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH50724A DE1194852B (en) 1963-11-02 1963-11-02 Process for the production of phosphonic acids or their salts with at least two phosphorus atoms in the molecule

Publications (1)

Publication Number Publication Date
GB1032378A true GB1032378A (en) 1966-06-08

Family

ID=7157463

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4390164A Expired GB1032378A (en) 1963-11-02 1964-10-28 Improvements in or relating to the production of phosphonic acids and their salts

Country Status (5)

Country Link
BE (1) BE655066A (en)
CH (1) CH441307A (en)
DE (1) DE1194852B (en)
GB (1) GB1032378A (en)
NL (1) NL141203B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3855284A (en) * 1963-11-02 1974-12-17 Henkel & Cie Gmbh Process for the manufacture of phosphonic acids and phosphonates having at least two phosphorus atoms

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3400148A (en) * 1965-09-23 1968-09-03 Procter & Gamble Phosphonate compounds
US3400176A (en) * 1965-11-15 1968-09-03 Procter & Gamble Propanepolyphosphonate compounds
US3959360A (en) * 1975-07-31 1976-05-25 Monsanto Company Process for preparing 1-hydroxy, ethylidene-1,1-diphosphonic acid

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL124638C (en) * 1961-07-03

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3855284A (en) * 1963-11-02 1974-12-17 Henkel & Cie Gmbh Process for the manufacture of phosphonic acids and phosphonates having at least two phosphorus atoms

Also Published As

Publication number Publication date
NL141203B (en) 1974-02-15
DE1194852B (en) 1965-06-16
BE655066A (en) 1965-04-30
NL6410204A (en) 1965-05-03
CH441307A (en) 1967-08-15

Similar Documents

Publication Publication Date Title
NZ272614A (en) Purification of carboxylic acids by separation from catalysts and reagents
US2803597A (en) Process for producing organic phosphines
GB1032378A (en) Improvements in or relating to the production of phosphonic acids and their salts
WO1983004017A1 (en) Thermal decomposition of aluminum chloride hexahydrate
ATE17232T1 (en) PROCESS FOR PRODUCTION OF GLYOXYL ACID AND GLYOXYL ACID DERIVATIVES.
US3000703A (en) Manufacture of zirconium oxide
JPH08170082A (en) Improving method for yield of heavy hydrocarbon in thermal cracking of hydrocarbon
BR8207188A (en) PROCESS FOR THE SEPARATION OF THE CATALYST SYSTEM OF REACTIONAL MIXTURES THAT FORM IN THE REACTION OF METHYL ACETATE AND / OR DIMETHYLIC ETER WITH CARBON MONOXIDE AND EVENTUALLY HYDROGEN, HIGH TEMPERATURES, FORMING ACID ACID ACIDATE
GB1089252A (en) Process for the recovery of boric acid from oxidation mixtures of the liquid phase oxidation of hydrocarbons
US3423240A (en) Pickling process
JPS59131504A (en) Purification of boron-containing sulfuric acid
Frank et al. CHLOROMETHYL–PHOSPHORUS COMPOUNDS SYNTHESIS AND INFRARED SPECTRA
JP7462294B2 (en) Method for producing phosphoric acid ester compound
JPS63258832A (en) Production of dimethyl maleate
GB963882A (en) Process for the manufacture of unsaturated phosphonic acid dichlorides
GB728955A (en) Manufacture of acrylamides
SU1330073A1 (en) Method of producing superfine phosphorus-containing silica
SU524520A3 (en) The method of obtaining 2-phenylethylene phosphonic acid
US3105846A (en) Process for producing aryl phosphate esters
US2636048A (en) Method of producing trialkyl phosphate esters
DE58900606D1 (en) METHOD FOR PRODUCING MONOCARBONIC ACID ANHYDRIDES.
GB2039861A (en) Treating a waste liquid containing boron compounds and organic compounds
US4005125A (en) Preparation of haloalkyl esters
SU481159A3 (en) The method of producing phosphonic dichlorides
GB2109818A (en) Electrolytic process for treating spent sulfuric acid