GB1160922A - Improved Process for Manufacture of Calcium Hydroxide - Google Patents

Improved Process for Manufacture of Calcium Hydroxide

Info

Publication number
GB1160922A
GB1160922A GB295567A GB295567A GB1160922A GB 1160922 A GB1160922 A GB 1160922A GB 295567 A GB295567 A GB 295567A GB 295567 A GB295567 A GB 295567A GB 1160922 A GB1160922 A GB 1160922A
Authority
GB
United Kingdom
Prior art keywords
manufacture
calcium hydroxide
improved process
particle size
calcined
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
GB295567A
Inventor
Raymond Parm Mayer
Robert Allen Stowe
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.)
Dow Chemical Co
Original Assignee
Dow Chemical 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 Dow Chemical Co filed Critical Dow Chemical Co
Priority to GB295567A priority Critical patent/GB1160922A/en
Publication of GB1160922A publication Critical patent/GB1160922A/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
    • C04B2/00—Lime, magnesia or dolomite
    • C04B2/02—Lime
    • C04B2/04—Slaking

Abstract

1,160,922. Slaking lime. DOW CHEMICAL CO. 19 Jan., 1967. No. 2955/67. Heading C1A. Calcined limestone and/or dolomite is slaked by immersing it in water, e.g. for 3-60 sees. and then allowing it to drain. Hydration occurs mainly while draining, during which time (e.g. 60 mins) steam is given off and the particles become heated to 100-150‹ C. and break down in size. Calcination may be effected at 1300-1450‹ C. on material of particle size 0À5- 2 ins. The calcined material preferably has a particle size of 90% greater than 0.84 mm. and is sufficiently porous to absorb 0À4-1À5 g. H 2 O per g. CaO. The product may be used to prepare Mg(OH) 2 from MgCl 2 brines.
GB295567A 1967-01-19 1967-01-19 Improved Process for Manufacture of Calcium Hydroxide Expired GB1160922A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB295567A GB1160922A (en) 1967-01-19 1967-01-19 Improved Process for Manufacture of Calcium Hydroxide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB295567A GB1160922A (en) 1967-01-19 1967-01-19 Improved Process for Manufacture of Calcium Hydroxide

Publications (1)

Publication Number Publication Date
GB1160922A true GB1160922A (en) 1969-08-06

Family

ID=9749193

Family Applications (1)

Application Number Title Priority Date Filing Date
GB295567A Expired GB1160922A (en) 1967-01-19 1967-01-19 Improved Process for Manufacture of Calcium Hydroxide

Country Status (1)

Country Link
GB (1) GB1160922A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998033743A1 (en) * 1997-01-31 1998-08-06 Solutia Inc. Hydration of alkaline earth metal oxide to produce alkaline earth metal hydroxide

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998033743A1 (en) * 1997-01-31 1998-08-06 Solutia Inc. Hydration of alkaline earth metal oxide to produce alkaline earth metal hydroxide
US6277353B1 (en) 1997-01-31 2001-08-21 David Richard Gard Hydration of alkaline earth metal oxide to produce alkaline earth metal hydroxide

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Legal Events

Date Code Title Description
416 Proceeding under section 16 patents act 1949
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees