GB309604A - Improvements in or relating to the manufacture of phosphoric acid and cement - Google Patents

Improvements in or relating to the manufacture of phosphoric acid and cement

Info

Publication number
GB309604A
GB309604A GB11407/29A GB1140729A GB309604A GB 309604 A GB309604 A GB 309604A GB 11407/29 A GB11407/29 A GB 11407/29A GB 1140729 A GB1140729 A GB 1140729A GB 309604 A GB309604 A GB 309604A
Authority
GB
United Kingdom
Prior art keywords
cement
phosphoric acid
relating
manufacture
sulphuric acid
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
GB11407/29A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Publication of GB309604A publication Critical patent/GB309604A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/69—Sulfur trioxide; Sulfuric acid
    • C01B17/74—Preparation
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/18—Phosphoric acid
    • C01B25/22—Preparation by reacting phosphate-containing material with an acid, e.g. wet process

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

309,604. I. G. Farbenindustrie Akt.- Ges. April 13, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Cements, Portland.-Phosphoric acid and cement are formed by treating calcium phosphate with sulphuric acid to obtain phosphoric acid and gypsum, working up the gypsum in known manner with materials containing carbon and alumina to yield cement and sulphuric acid and using the sulphuric acid for the treatment of fresh quantities of phosphate.
GB11407/29A 1928-04-13 1929-04-12 Improvements in or relating to the manufacture of phosphoric acid and cement Expired GB309604A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE309604X 1928-04-13

Publications (1)

Publication Number Publication Date
GB309604A true GB309604A (en) 1930-07-10

Family

ID=6122069

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11407/29A Expired GB309604A (en) 1928-04-13 1929-04-12 Improvements in or relating to the manufacture of phosphoric acid and cement

Country Status (3)

Country Link
BE (1) BE359697A (en)
FR (1) FR672811A (en)
GB (1) GB309604A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2528103A (en) * 1946-01-07 1950-10-31 Robert M Willson Method of producing sulfuric acid and hydraulic cement from gypsum

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2528103A (en) * 1946-01-07 1950-10-31 Robert M Willson Method of producing sulfuric acid and hydraulic cement from gypsum

Also Published As

Publication number Publication date
FR672811A (en) 1930-01-07
BE359697A (en)

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