RU2006144637A - METHOD FOR GYPSUM BINDER - Google Patents

METHOD FOR GYPSUM BINDER Download PDF

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Publication number
RU2006144637A
RU2006144637A RU2006144637/03A RU2006144637A RU2006144637A RU 2006144637 A RU2006144637 A RU 2006144637A RU 2006144637/03 A RU2006144637/03 A RU 2006144637/03A RU 2006144637 A RU2006144637 A RU 2006144637A RU 2006144637 A RU2006144637 A RU 2006144637A
Authority
RU
Russia
Prior art keywords
ratio
carbonate
drying
sulfuric acid
carried out
Prior art date
Application number
RU2006144637/03A
Other languages
Russian (ru)
Other versions
RU2351557C2 (en
Original Assignee
Долгорев Анатолий Васильевич (RU)
Долгорев Анатолий Васильевич
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 Долгорев Анатолий Васильевич (RU), Долгорев Анатолий Васильевич filed Critical Долгорев Анатолий Васильевич (RU)
Priority to RU2006144637/03A priority Critical patent/RU2351557C2/en
Publication of RU2006144637A publication Critical patent/RU2006144637A/en
Application granted granted Critical
Publication of RU2351557C2 publication Critical patent/RU2351557C2/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/0028—Aspects relating to the mixing step of the mortar preparation
    • C04B40/0039—Premixtures of ingredients
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B11/00—Calcium sulfate cements
    • C04B11/02—Methods and apparatus for dehydrating gypsum
    • C04B11/024—Ingredients added before, or during, the calcining process, e.g. calcination modifiers
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/52—Grinding aids; Additives added during grinding

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

Способ получения гипсового вяжущего, заключающегося в использовании раствора серной кислоты и карбоната или оксида кальция и проведении процесса при непрерывном последовательном смешении компонентов, нейтрализации, сушке и помоле до остатка при рассеве на сите 0,2 не более 12%, отличающийся тем, что берут раствор концентрированной серной кислоты и добавляют сульфат магния при соотношении 500-1000:1, затем проводят смешение порошка карбоната или оксида кальция при соотношении 1:1, в полученную реакционную смесь распыляют воду, нагретую до 70-80°С, при соотношении 1:0,03-0,05, охлаждают до комнатной температуры, а процесс нейтрализации ведут оксидом магния до рН 9-11, а сушку проводят до удаления избыточной влаги. A method of obtaining a gypsum binder, which consists in using a solution of sulfuric acid and carbonate or calcium oxide and carrying out the process with continuous sequential mixing of the components, neutralizing, drying and grinding to a residue during sieving on a sieve of 0.2 no more than 12%, characterized in that they take the solution concentrated sulfuric acid and magnesium sulfate is added at a ratio of 500-1000: 1, then carbonate or calcium oxide powder is mixed at a ratio of 1: 1, water heated to 70-80 ° C is sprayed into the resulting reaction mixture, at a ratio of 1: 0.03-0.05, cooled to room temperature, and the neutralization process is carried out with magnesium oxide to a pH of 9-11, and drying is carried out to remove excess moisture.

Claims (1)

Способ получения гипсового вяжущего, заключающегося в использовании раствора серной кислоты и карбоната или оксида кальция и проведении процесса при непрерывном последовательном смешении компонентов, нейтрализации, сушке и помоле до остатка при рассеве на сите 0,2 не более 12%, отличающийся тем, что берут раствор концентрированной серной кислоты и добавляют сульфат магния при соотношении 500-1000:1, затем проводят смешение порошка карбоната или оксида кальция при соотношении 1:1, в полученную реакционную смесь распыляют воду, нагретую до 70-80°С, при соотношении 1:0,03-0,05, охлаждают до комнатной температуры, а процесс нейтрализации ведут оксидом магния до рН 9-11, а сушку проводят до удаления избыточной влаги.A method of obtaining a gypsum binder, which consists in using a solution of sulfuric acid and carbonate or calcium oxide and carrying out the process with continuous sequential mixing of the components, neutralizing, drying and grinding to a residue during sieving on a sieve of 0.2 no more than 12%, characterized in that they take the solution concentrated sulfuric acid and magnesium sulfate is added at a ratio of 500-1000: 1, then carbonate or calcium oxide powder is mixed at a ratio of 1: 1, water heated to 70-80 ° C is sprayed into the resulting reaction mixture, at a ratio of 1: 0.03-0.05, cooled to room temperature, and the neutralization process is carried out with magnesium oxide to a pH of 9-11, and drying is carried out to remove excess moisture.
RU2006144637/03A 2006-12-15 2006-12-15 Method for production of gypsum binding agent RU2351557C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2006144637/03A RU2351557C2 (en) 2006-12-15 2006-12-15 Method for production of gypsum binding agent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2006144637/03A RU2351557C2 (en) 2006-12-15 2006-12-15 Method for production of gypsum binding agent

Publications (2)

Publication Number Publication Date
RU2006144637A true RU2006144637A (en) 2008-06-20
RU2351557C2 RU2351557C2 (en) 2009-04-10

Family

ID=41015162

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2006144637/03A RU2351557C2 (en) 2006-12-15 2006-12-15 Method for production of gypsum binding agent

Country Status (1)

Country Link
RU (1) RU2351557C2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8343273B1 (en) * 2012-03-30 2013-01-01 United States Gypsum Company Method of modifying beta stucco using diethylene-triamine-pentaacetic acid

Also Published As

Publication number Publication date
RU2351557C2 (en) 2009-04-10

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Legal Events

Date Code Title Description
MM4A The patent is invalid due to non-payment of fees

Effective date: 20090131

MM4A The patent is invalid due to non-payment of fees

Effective date: 20101216