Nothing Special   »   [go: up one dir, main page]

ES440142A1 - Process for preparing shaped articles from gypsum - Google Patents

Process for preparing shaped articles from gypsum

Info

Publication number
ES440142A1
ES440142A1 ES440142A ES440142A ES440142A1 ES 440142 A1 ES440142 A1 ES 440142A1 ES 440142 A ES440142 A ES 440142A ES 440142 A ES440142 A ES 440142A ES 440142 A1 ES440142 A1 ES 440142A1
Authority
ES
Spain
Prior art keywords
calcium sulfate
gypsum
articles
shaped articles
procedure
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
ES440142A
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.)
Unie Van Kunstmestfabrieken BV
Original Assignee
Unie Van Kunstmestfabrieken BV
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 Unie Van Kunstmestfabrieken BV filed Critical Unie Van Kunstmestfabrieken BV
Publication of ES440142A1 publication Critical patent/ES440142A1/en
Expired legal-status Critical Current

Links

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
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
    • C04B28/141—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing dihydrated gypsum before the final hardening step, e.g. forming a dihydrated gypsum product followed by a de- and rehydration step

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)

Abstract

Procedure for preparing articles shaped from gypsum (CaSO4.2H20), by compression of calcium sulfate dihydrate and additives to form articles, said procedure being characterized by compressing calcium sulfate dihydrate, not calcined, wet, whatever its origin, one or more additives known as such, with the exception of calcium sulfate hemihydrate, are mixed with the gypsum suspension, and then the shaped articles are allowed to dry, under conditions in which calcium sulfate hemihydrate is not formed, the compression pressure being chosen at least so that a compressible article is formed that can be handled. (Machine-translation by Google Translate, not legally binding)
ES440142A 1974-08-09 1975-08-08 Process for preparing shaped articles from gypsum Expired ES440142A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7410706A NL7410706A (en) 1974-08-09 1974-08-09 PROCESS FOR MANUFACTURING FORMINGS FROM GIPS.

Publications (1)

Publication Number Publication Date
ES440142A1 true ES440142A1 (en) 1977-03-01

Family

ID=19821890

Family Applications (1)

Application Number Title Priority Date Filing Date
ES440142A Expired ES440142A1 (en) 1974-08-09 1975-08-08 Process for preparing shaped articles from gypsum

Country Status (12)

Country Link
JP (1) JPS5145120A (en)
BE (1) BE832152A (en)
BR (1) BR7505111A (en)
CA (1) CA1077245A (en)
DE (1) DE2535577A1 (en)
ES (1) ES440142A1 (en)
FR (1) FR2281202A1 (en)
GB (1) GB1479804A (en)
IT (1) IT1041174B (en)
NL (1) NL7410706A (en)
PL (1) PL112807B1 (en)
ZA (1) ZA755010B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7604948A (en) * 1976-05-08 1977-11-10 Stamicarbon PROCESS FOR MANUFACTURING FORMINGS FROM CALCIUM SULPHATE DIHYDRATE.
SU863537A1 (en) * 1977-04-27 1981-09-15 Ростовский Филиал Производственно-Технического Объединения "Росоргтехстром" Method of making gypsum articles
FR2462402A1 (en) * 1979-08-03 1981-02-13 Setec Geotechnique METHOD FOR MANUFACTURING CONSTRUCTION ELEMENTS FROM HYDRATED CALCIUM SULPHATE, CALCIUM PHOSPHATE TREATMENT RESIDUE
FI59872C (en) * 1979-12-21 1981-10-12 Pentti Veikko Kalevi Hukkanen FOERFARANDE FOER FRAMSTAELLNING AV ENGAONGSMAOL EXEMPELVIS LERDUVOR FOER SKYTTESPORT ELLER LIKNANDE
JP2596994B2 (en) * 1988-12-06 1997-04-02 三菱重工業株式会社 Method for producing hardened gypsum
DE729926T1 (en) * 1995-03-03 1997-01-30 Gyproc Benelux Nv Process for the production of gypsum components and gypsum components produced by this process

Also Published As

Publication number Publication date
CA1077245A (en) 1980-05-13
DE2535577A1 (en) 1976-02-26
NL7410706A (en) 1976-02-11
BE832152A (en) 1976-02-06
FR2281202A1 (en) 1976-03-05
IT1041174B (en) 1980-01-10
BR7505111A (en) 1976-08-03
PL112807B1 (en) 1980-11-29
JPS5145120A (en) 1976-04-17
GB1479804A (en) 1977-07-13
FR2281202B1 (en) 1982-08-20
ZA755010B (en) 1976-07-28

Similar Documents

Publication Publication Date Title
NL7504742A (en) PROCESS FOR PREPARING CALCIUM SULPHATE (ALPHA) HEMIHYDRATE.
GB1079502A (en) Improvements in and relating to the production of calcium sulphate hemihydrate
ES440142A1 (en) Process for preparing shaped articles from gypsum
GB1429187A (en) Process for the conversion of anhydrite into gypsum
NL7506118A (en) PROCESS FOR THE PREPARATION OF HYDRAULIC CONCRETE PRODUCTS, MORTARS AND PLASTER LIME WITH IMPROVED PROPERTIES.
FI821582L (en) FRAMEWORK FOR FRAMING PROCESSING
ES430318A1 (en) Composition for the construction of buildings
ES441931A1 (en) Process for production of raw mix cement slurries having reduced water content
MX2021011516A (en) Aluminate-enhanced type i portland cements with short setting times and cement boards produced therefrom.
GB832256A (en) Improvements in or relating to cementitious material
GB1450246A (en) Manufacture of shaped articles of calcium sulphate dihydrate
ES419558A1 (en) Production of plaster
ES458593A1 (en) Process for the manufacture of shaped products from calcium sulphate dihydrate
ES226209A1 (en) A procedure for the obtaining of plaster mixtures with cellulose material (Machine-translation by Google Translate, not legally binding)
SU500196A1 (en) Raw mix for the production of portland cement clinker
NL7414904A (en) Gypsum mouldings e.g. building blocks - by mixing moist uncalcined calcium sulphate dihydrate with cement and moisture, pressing and drying
FR2217288A1 (en) Dry premixed cement - for binding wall blocks without mortar
ES442078A1 (en) Gypsum products and their production
ES232212A1 (en) Procedure with apparatus for manufacturing cement (Machine-translation by Google Translate, not legally binding)
ES426211A1 (en) Procedure for the manufacture of construction bodies containing fibers. (Machine-translation by Google Translate, not legally binding)
ES260793A3 (en) A procedure for the dehydration of plaster (Machine-translation by Google Translate, not legally binding)
ES376753A1 (en) Procedure for obtaining plaster products. (Machine-translation by Google Translate, not legally binding)
ES305098A1 (en) Procedure for the manufacture of hardened coatings and other ceramic products. (Machine-translation by Google Translate, not legally binding)
ES318884A1 (en) A procedure for the manufacture of a body with special form of a plate, based on gypsum. (Machine-translation by Google Translate, not legally binding)
ES431784A1 (en) Cement manufacture