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Water treatment to stabilize hardness at high temps. - by adding an organic polymer contg. carboxyl and hydroxyl gps.

Info

Publication number
DE2522637A1
DE2522637A1 DE19752522637 DE2522637A DE2522637A1 DE 2522637 A1 DE2522637 A1 DE 2522637A1 DE 19752522637 DE19752522637 DE 19752522637 DE 2522637 A DE2522637 A DE 2522637A DE 2522637 A1 DE2522637 A1 DE 2522637A1
Authority
DE
Grant status
Application
Patent type
Prior art keywords
water
hardness
gps
temps
treatment
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.)
Pending
Application number
DE19752522637
Other languages
German (de)
Inventor
Robert Dipl Chem Hartmann
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.)
Chemische Fabrik Budenhiem KG
Original Assignee
Chemische Fabrik Budenhiem KG
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

Links

Classifications

    • 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

Abstract

Water treatment consists of stabilising the hardness by adding, at pH 5-9, a sub-stoichiometric amt. of an organic nitrogen-free and phosphorus-free polymer (I) with a main chain consisting mainly of C-C bonds and contg. COOH or carboxylate gps. and OH gps. in a ratio of between 2 and 9 and having a degree of polymsn. of 3-600, alone or in combination with a polymer (II) having unsatd. C-C bonds and carboxyl gps., and having a mol.wt. of 1 X 105-15X106, in amts. of 0.1-15 p.p.m., esp. 1.5-5 p.p.m., calcd. as 100% substance, to water at 90 degrees C and at a max. of 500 p.p.m. to water at 90-130 Degrees C. Gives good stabilisation of hardness in water at high temps., and gives improved results under these conditions compared with prior art complexing agents such as condensed inorganic phosphates, EDTA, etc., and gives longer stabilisation of hardness at elevated temps. than known polyacrylate water treatment agents.
DE19752522637 1975-05-22 1975-05-22 Water treatment to stabilize hardness at high temps. - by adding an organic polymer contg. carboxyl and hydroxyl gps. Pending DE2522637A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19752522637 DE2522637A1 (en) 1975-05-22 1975-05-22 Water treatment to stabilize hardness at high temps. - by adding an organic polymer contg. carboxyl and hydroxyl gps.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752522637 DE2522637A1 (en) 1975-05-22 1975-05-22 Water treatment to stabilize hardness at high temps. - by adding an organic polymer contg. carboxyl and hydroxyl gps.

Publications (1)

Publication Number Publication Date
DE2522637A1 true true DE2522637A1 (en) 1976-12-09

Family

ID=5947137

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19752522637 Pending DE2522637A1 (en) 1975-05-22 1975-05-22 Water treatment to stabilize hardness at high temps. - by adding an organic polymer contg. carboxyl and hydroxyl gps.

Country Status (1)

Country Link
DE (1) DE2522637A1 (en)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4389324A (en) * 1978-11-10 1983-06-21 Keller & Bobacek Gmbh & Co., Kg. Polymeric composition for preventing the formation of scale during evaporation of sugar juices
US4532048A (en) * 1983-09-23 1985-07-30 B. F. Goodrich Company Method for inhibiting scale deposition
US4849129A (en) * 1988-05-06 1989-07-18 Betz Laboratories, Inc. Water treatment polymers and methods of use thereof
US4863614A (en) * 1983-10-26 1989-09-05 Betz Laboratories, Inc. Water treatment polymers and methods of use thereof
US4868263A (en) * 1983-10-26 1989-09-19 Betz Laboratories, Inc. Novel amine-containing copolymers and their use
US4869845A (en) * 1983-10-26 1989-09-26 Betz Laboratories, Inc. Water treatment compositions
US4872995A (en) * 1983-10-26 1989-10-10 Betz Laboratories, Inc. Method for calcium oxalate scale control
US4895663A (en) * 1986-05-16 1990-01-23 Betz Laboratories, Inc. Water treatment polymers and methods of use thereof
US4895664A (en) * 1983-10-26 1990-01-23 Betz Laboratories, Inc. Water treatment polymers and methods of use thereof
US4895916A (en) * 1983-10-26 1990-01-23 Betz Laboratories, Inc. Water treatment polymers and methods of use thereof
US4898684A (en) * 1983-10-26 1990-02-06 Betz Laboratories, Inc. Novel amine-containing copolymers and their use
US4906383A (en) * 1983-10-26 1990-03-06 Betz Laboratories, Inc. Novel amine-containing copolymers and their use
US4929362A (en) * 1983-10-26 1990-05-29 Betz Laboratories, Inc. Calcium phosphate scale control methods
US4929695A (en) * 1983-10-26 1990-05-29 Betz Laboratories, Inc. Water treatment polymers and methods of use thereof
US4931188A (en) * 1983-10-26 1990-06-05 Betz Laboratories, Inc. Polymers for boiler water treatment
US4944885A (en) * 1983-10-26 1990-07-31 Betz Laboratories, Inc. Water treatment polymers and methods of use thereof
US4980433A (en) * 1983-10-26 1990-12-25 Betz Laboratories, Inc. Novel amine-containing copolymers and their use

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4389324A (en) * 1978-11-10 1983-06-21 Keller & Bobacek Gmbh & Co., Kg. Polymeric composition for preventing the formation of scale during evaporation of sugar juices
US4532048A (en) * 1983-09-23 1985-07-30 B. F. Goodrich Company Method for inhibiting scale deposition
US4895664A (en) * 1983-10-26 1990-01-23 Betz Laboratories, Inc. Water treatment polymers and methods of use thereof
US4863614A (en) * 1983-10-26 1989-09-05 Betz Laboratories, Inc. Water treatment polymers and methods of use thereof
US4868263A (en) * 1983-10-26 1989-09-19 Betz Laboratories, Inc. Novel amine-containing copolymers and their use
US4869845A (en) * 1983-10-26 1989-09-26 Betz Laboratories, Inc. Water treatment compositions
US4872995A (en) * 1983-10-26 1989-10-10 Betz Laboratories, Inc. Method for calcium oxalate scale control
US4931188A (en) * 1983-10-26 1990-06-05 Betz Laboratories, Inc. Polymers for boiler water treatment
US4944885A (en) * 1983-10-26 1990-07-31 Betz Laboratories, Inc. Water treatment polymers and methods of use thereof
US4895916A (en) * 1983-10-26 1990-01-23 Betz Laboratories, Inc. Water treatment polymers and methods of use thereof
US4898684A (en) * 1983-10-26 1990-02-06 Betz Laboratories, Inc. Novel amine-containing copolymers and their use
US4906383A (en) * 1983-10-26 1990-03-06 Betz Laboratories, Inc. Novel amine-containing copolymers and their use
US4929362A (en) * 1983-10-26 1990-05-29 Betz Laboratories, Inc. Calcium phosphate scale control methods
US4929695A (en) * 1983-10-26 1990-05-29 Betz Laboratories, Inc. Water treatment polymers and methods of use thereof
US4980433A (en) * 1983-10-26 1990-12-25 Betz Laboratories, Inc. Novel amine-containing copolymers and their use
US4895663A (en) * 1986-05-16 1990-01-23 Betz Laboratories, Inc. Water treatment polymers and methods of use thereof
US4849129A (en) * 1988-05-06 1989-07-18 Betz Laboratories, Inc. Water treatment polymers and methods of use thereof

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