ES438418A1 - Watertreatment process - Google Patents

Watertreatment process

Info

Publication number
ES438418A1
ES438418A1 ES438418A ES438418A ES438418A1 ES 438418 A1 ES438418 A1 ES 438418A1 ES 438418 A ES438418 A ES 438418A ES 438418 A ES438418 A ES 438418A ES 438418 A1 ES438418 A1 ES 438418A1
Authority
ES
Spain
Prior art keywords
evaporator
polymer
added
watertreatment
maleic anhydride
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
ES438418A
Other languages
Spanish (es)
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.)
WR Grace and Co
Original Assignee
WR Grace and Co
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 WR Grace and Co filed Critical WR Grace and Co
Publication of ES438418A1 publication Critical patent/ES438418A1/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • C02F5/12—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 nitrogen
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Procedure for inhibiting scale deposition on the heat exchange surface of an evaporator, wherein a polymer of maleic acid or maleic anhydride is added to the evaporator; characterized in that a combination of a nonionic or anionic surfactant and a polymer of maleic acid or maleic anhydride is added to the evaporator. (Machine-translation by Google Translate, not legally binding)
ES438418A 1974-06-10 1975-06-10 Watertreatment process Expired ES438418A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US47801374A 1974-06-10 1974-06-10
US48034974A 1974-06-18 1974-06-18

Publications (1)

Publication Number Publication Date
ES438418A1 true ES438418A1 (en) 1977-05-16

Family

ID=27045757

Family Applications (1)

Application Number Title Priority Date Filing Date
ES438418A Expired ES438418A1 (en) 1974-06-10 1975-06-10 Watertreatment process

Country Status (4)

Country Link
ES (1) ES438418A1 (en)
GB (1) GB1519512A (en)
IT (1) IT1038850B (en)
NL (1) NL7506874A (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1114978A (en) * 1978-06-15 1981-12-22 Chih M. Hwa Sludge conditioning composition for scale inhibition in water
US4390670A (en) 1981-02-09 1983-06-28 Pfizer Inc. Acrylate/maleate copolymers, their preparation and use as antiscalants
US4710537A (en) * 1981-02-09 1987-12-01 Pfizer Inc. Substantially homogeneous copolymers of acrylic or methacrylic acid and maleic acid
US4547559A (en) * 1981-02-09 1985-10-15 Pfizer Inc. Acrylate/maleate copolymers, their preparation and use as antiscalants
US4326980A (en) * 1981-02-23 1982-04-27 Betz Laboratories, Inc. Acrylic copolymer composition inhibits scale formation and disperses oil in aqueous systems
JPS57168906A (en) * 1981-04-13 1982-10-18 Kao Corp Maleic acid/(meth)acrylic acid copolymer
US4324664A (en) * 1981-04-16 1982-04-13 Betz Laboratories, Inc. Method and composition for treating aqueous mediums
US4479878A (en) * 1982-10-28 1984-10-30 Betz Laboratories, Inc. High calcium tolerant deposit control method
US4589985A (en) * 1984-12-03 1986-05-20 Calgon Corporation Polyelectrolyte and surfactant compositions for controlling alkaline earth metal scales
GB8506615D0 (en) * 1985-03-14 1985-04-17 British Petroleum Co Plc Scale inhibitors
EP0254774B1 (en) * 1986-07-30 1990-09-19 Denac N.V. Method for controlling phosphonates tending to precipitate metal ions in water
US4931206A (en) * 1988-03-15 1990-06-05 Betz Laboratories, Inc. Boiler water treatment composition
US4828713A (en) * 1988-03-15 1989-05-09 Betz Laboratories, Inc. Boiler water treatment
US4952324A (en) * 1988-03-15 1990-08-28 Betz Laboratories, Inc. Boiler water treatment
US5164468A (en) * 1990-09-05 1992-11-17 The Standard Oil Company Polymers derived from α, β-unsaturated polycarboxylic acids or anhydrides and n-substituted acrylamides, and use in reducing scale
FR2723174B1 (en) * 1994-07-29 1996-09-20 Seb Sa VAPORIZATION TABLET
JP6985265B2 (en) * 2015-11-06 2021-12-22 ビーエーエスエフ ソシエタス・ヨーロピアBasf Se How to separate water from an aqueous system

Also Published As

Publication number Publication date
GB1519512A (en) 1978-07-26
IT1038850B (en) 1979-11-30
NL7506874A (en) 1975-12-12

Similar Documents

Publication Publication Date Title
ES438418A1 (en) Watertreatment process
ES457440A1 (en) Corrosion inhibitor for metal surfaces
ES296808A1 (en) Procedure for preparing a detergent composition (Machine-translation by Google Translate, not legally binding)
ES402672A1 (en) Process for rearranging 6-acylamidopenicillanic acid-1-oxides to 7-acyla mido-3-methyl-ceph-3-em-4-carboxylic acids
ES384088A1 (en) Process for preparation of poly(maleic acid)
JPS5241443A (en) Heat radiating panel
ES441882A1 (en) Procedure to eliminate incorporations based on sultadocalcico of the thermal exchange surface of a water evaporator. (Machine-translation by Google Translate, not legally binding)
ES304328A1 (en) Procedure to produce aluminum salts and mixed aluminum salts and alkaline metals. (Machine-translation by Google Translate, not legally binding)
ES416062A1 (en) Process for the dehydration of maleic acid
JPS51142588A (en) Process for fixing of kefir granules-constituting microorganisms as a lactase source
ES420780A1 (en) Proline compounds
ES386098A1 (en) Processes for making cutting instruments
ES228277A1 (en) Process for producing alpha-phenyl succinimides
GB1438543A (en)
JPS51132106A (en) A pipe in heating furnace
JPS51141852A (en) Process for preparing 1-alkyl-2-naphthols
ES375609A1 (en) Procedure for obtaining a calcium salt from 2 - (p-chlorophenoxy) -2-methylpropionic. (Machine-translation by Google Translate, not legally binding)
ES321376A1 (en) Method of production of forged silicon steel. (Machine-translation by Google Translate, not legally binding)
ES400350A1 (en) Process for improving the properties of set gypsum
ES313056A1 (en) Procedure for the obtaining of therapeutically active salts from the tioctic acid. (Machine-translation by Google Translate, not legally binding)
ES229627A1 (en) Improvements in and related to procedures for manufacturing vitrificable compositions (Machine-translation by Google Translate, not legally binding)
ES456369A1 (en) Supported ziegler polymerization catalyst and components thereof
JPS51135810A (en) Cooling apparatus for high-temperature solids
ES220824A1 (en) Procedure of acilation of 3-amino acid 2, 4, 6 triyodo-benzoico (Machine-translation by Google Translate, not legally binding)
ES221055A1 (en) A procedure for obtaining a new hydroquinone compound (Machine-translation by Google Translate, not legally binding)