GB438676A - Improvements in or relating to the production of water-resistant bodies consisting mainly of calcium hydroxide - Google Patents

Improvements in or relating to the production of water-resistant bodies consisting mainly of calcium hydroxide

Info

Publication number
GB438676A
GB438676A GB24929/34A GB2492934A GB438676A GB 438676 A GB438676 A GB 438676A GB 24929/34 A GB24929/34 A GB 24929/34A GB 2492934 A GB2492934 A GB 2492934A GB 438676 A GB438676 A GB 438676A
Authority
GB
United Kingdom
Prior art keywords
water
calcium hydroxide
carbon dioxide
consisting mainly
relating
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
GB24929/34A
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.)
MINING AND IND WORKS
Original Assignee
MINING AND IND WORKS
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 MINING AND IND WORKS filed Critical MINING AND IND WORKS
Publication of GB438676A publication Critical patent/GB438676A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/02—Oxides or hydroxides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)

Abstract

Water resistant bodies consisting mainly of calcium hydroxide are obtained from moistened lumps of calcium oxide or from solid bodies produced by moulding calcium hydroxide with water by treating the initial materials with carbon dioxide or a gas containing it at ordinary temperature until say 5--10 per cent of carbon dioxide is absorbed, and then raising the temperature gradually above 100 DEG C., say to 200--300 DEG C., until the product is sufficiently dehydrated to be stable in contact with water. The heating may take place in the presence of carbon dioxide, and the final product also be allowed to cool in the presence of this gas. The water content of the final product may correspond to that of monohydrated calcium hydroxide.
GB24929/34A 1934-03-12 1934-08-29 Improvements in or relating to the production of water-resistant bodies consisting mainly of calcium hydroxide Expired GB438676A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS438676X 1934-03-12

Publications (1)

Publication Number Publication Date
GB438676A true GB438676A (en) 1935-11-21

Family

ID=5452851

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24929/34A Expired GB438676A (en) 1934-03-12 1934-08-29 Improvements in or relating to the production of water-resistant bodies consisting mainly of calcium hydroxide

Country Status (1)

Country Link
GB (1) GB438676A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2548780A (en) * 1946-09-19 1951-04-10 Filtrol Corp Process of producing pelleted calcium oxide desiccant

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2548780A (en) * 1946-09-19 1951-04-10 Filtrol Corp Process of producing pelleted calcium oxide desiccant

Similar Documents

Publication Publication Date Title
GB438676A (en) Improvements in or relating to the production of water-resistant bodies consisting mainly of calcium hydroxide
GB445411A (en) Improvements in or relating to the production of water-resistant basic or neutral calcium sulphite in the form of lumps
GB514149A (en) Manufacture of anhydrous aluminium sulphate
GB391462A (en) Process for manufacturing caustic soda
GB363476A (en) Method of manufacturing white sugar directly from cane sugar juice
GB420652A (en) Improvements in or relating to the manufacture of hydrogen
GB409098A (en) Improvements in the manufacture and production of pure sulphur
GB358492A (en) Improvements relating to the manufacture of titanium dioxide
GB736272A (en) Improvements in or relating to the preparation of active alumina gel
GB462319A (en) Improvements in or relating to the manufacture of paraformaldehyde
GB404939A (en) Improved method of treating tar for road purposes
GB697965A (en) Improvements in and relating to the manufacture of p-aminosalicyclic acid
GB471830A (en) Improvements in or relating to the production of titanium compounds
GB457676A (en) A process for the production of a calcium aluminate suitable for the manufacture of sodium aluminate by treatment with soda lye
GB850187A (en) Production of light highly voluminous silicate or silicon dioxide
GB174581A (en) Process for the manufacture of alkali-metal silicates
GB360023A (en) Improvements in or relating to the manufacture of cellulose
GB437458A (en) Improvements in and relating to the manufacture of boiler and steam pipe lagging
GB244078A (en) A new or improved process for obtaining products from gypsum
GB449935A (en) An improved process for making sodium sulphide from sodium sulphate by reduction with hydrogen or other reducing gases
GB389663A (en) An improved heat-resisting composition and method of making same
GB498372A (en) Improvements in or relating to the production of agents containing magnesium oxide and calcium carbonate from magnesiumcontaining substances
GB424305A (en) Process for the production of softened cheese
GB421566A (en) Improvements in or relating to the production of iron sponge
GB468659A (en) Improvements in the manufacture and production of chromite refractories