GB739106A - Process for the manufacture of calcium cyanamide and products obtained thereby - Google Patents

Process for the manufacture of calcium cyanamide and products obtained thereby

Info

Publication number
GB739106A
GB739106A GB16102/53A GB1610253A GB739106A GB 739106 A GB739106 A GB 739106A GB 16102/53 A GB16102/53 A GB 16102/53A GB 1610253 A GB1610253 A GB 1610253A GB 739106 A GB739106 A GB 739106A
Authority
GB
United Kingdom
Prior art keywords
ammonia
calcium carbonate
manufacture
meshes
calcium cyanamide
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
GB16102/53A
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.)
TERNI IND ELETTR
Original Assignee
TERNI IND ELETTR
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 TERNI IND ELETTR filed Critical TERNI IND ELETTR
Publication of GB739106A publication Critical patent/GB739106A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C3/00—Cyanogen; Compounds thereof
    • C01C3/16—Cyanamide; Salts thereof
    • C01C3/18—Calcium cyanamide

Abstract

In the production of calcium cyanamide by reacting comminuted calcium carbonate with ammonia, the ammonia is passed through a bed of calcium carbonate at such a speed as to effect stirring of the bed without causing a substantial quantity of calcium carbonate to be entrained. In the example an upright tube, having a porous diaphragm, is heated from outside, while a stream of nitrogen is passed through, to 750 DEG C. milled marble of size + 1600 meshes/cm.2-2500 meshes/cm.2 was introduced and a stream of ammonia admixed with carbon monoxide in 50 : 50 volume proportion is substituted for the nitrogen, at a gas velocity of about 400 l./hr., while the temperature is brought to 770-775 DEG C., and maintained at this value for 2 hours.
GB16102/53A 1952-06-24 1953-06-11 Process for the manufacture of calcium cyanamide and products obtained thereby Expired GB739106A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT739106X 1952-06-24

Publications (1)

Publication Number Publication Date
GB739106A true GB739106A (en) 1955-10-26

Family

ID=11315413

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16102/53A Expired GB739106A (en) 1952-06-24 1953-06-11 Process for the manufacture of calcium cyanamide and products obtained thereby

Country Status (2)

Country Link
FR (1) FR1085940A (en)
GB (1) GB739106A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110156049A (en) * 2019-06-12 2019-08-23 黄河三角洲京博化工研究院有限公司 A kind of method that solvent method prepares calcium cyanamide

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110156049A (en) * 2019-06-12 2019-08-23 黄河三角洲京博化工研究院有限公司 A kind of method that solvent method prepares calcium cyanamide

Also Published As

Publication number Publication date
FR1085940A (en) 1955-02-08

Similar Documents

Publication Publication Date Title
ES228213A1 (en) Gasification of liquid fuels
GB739106A (en) Process for the manufacture of calcium cyanamide and products obtained thereby
GB902076A (en) Improvements relating to the production of silicon tetrachloride
GB684054A (en) Improvements in the manufacture of iron powder by the carbonyl process
GB1066588A (en) Improvements in a process for the production of alkali cellulose
GB1120237A (en) Process for the catalytic production of hydrocyanic acid
GB751240A (en) Improvements in or relating to process for preparing ammonium nitrate
GB1277592A (en) A process for the production of an amorphous highly dispersed germanium dioxide
GB727799A (en) Simultaneous decomposition of pyrite and feso
GB833607A (en) Production of finely grained masses consisting mainly of calcium silicate or calcium silicate and silicic acid
GB836823A (en) Process and apparatus for the production of alkali or alkaline earth metal cyanides
GB636035A (en) Improvements in or relating to process of producing diammonium phosphate and the product resulting therefrom
US1922591A (en) Process for manufacturing caustic soda
SU430056A1 (en) Method of producing powdered boron anhydride
GB1061555A (en) Improvements in or relating to the production of potassium monopersulphate
GB505734A (en) A process for the preparation of sodium monoxide
GB264724A (en) Improvements relating to the manufacture of sodium monoxide
GB742386A (en) Manufacture of ammonium bicarbonate
ES364270A1 (en) Process for the production of a cyanic acid-ammonia gas mixture
GB1028460A (en) Process for the manufacture of coke dust
GB1170399A (en) A Process for Preparing 3,5-Dioxo-1-Piperazineacetamide and Nitrilotriacetic Acid Triamide
GB816731A (en) Process for manufacture of hydrocyanic acid
JPS5711971A (en) Preparation of pyrazinamide
SU89984A1 (en) Method for producing calcium metaphosphate
GB757016A (en) Process for the production of ammonium carbamate