GB905959A - Method for the preparation of a zinc cyanamide - Google Patents

Method for the preparation of a zinc cyanamide

Info

Publication number
GB905959A
GB905959A GB2414260A GB2414260A GB905959A GB 905959 A GB905959 A GB 905959A GB 2414260 A GB2414260 A GB 2414260A GB 2414260 A GB2414260 A GB 2414260A GB 905959 A GB905959 A GB 905959A
Authority
GB
United Kingdom
Prior art keywords
cyanamide
solution
zinc
hydrate
reacting
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
GB2414260A
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.)
Centro Ricerche Metallurgiche SpA
Original Assignee
Centro Ricerche Metallurgiche SpA
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 Centro Ricerche Metallurgiche SpA filed Critical Centro Ricerche Metallurgiche SpA
Publication of GB905959A publication Critical patent/GB905959A/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)

Abstract

Zinc cyanamide is produced by dispersing calcium cyanamide in water, reacting this suspension with sulphuric acid or carbon dioxide to form a solution of free cyanamide, and reacting this solution with a slurry of zinc hydrate. The formation of the cyanamide solution is effected with constant stirring, at a temperature not above 35 DEG C., and the pH is maintained between 6 and 10 throughout. The CaSO4 or CaCO3 and calcium cyanamide impurities, e.g. silica or carbonaceous particles, are filtered off. The zinc hydrate is prepared by stirring ZnO with 2 or 3 times its weight of water for 2 to 3 hours. This hydrate is reacted with the cyanamide solution filtrate in 3 to 70% stoichiometric excess for 1 to 2 hours.
GB2414260A 1959-07-11 1960-07-11 Method for the preparation of a zinc cyanamide Expired GB905959A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1190259 1959-07-11

Publications (1)

Publication Number Publication Date
GB905959A true GB905959A (en) 1962-09-12

Family

ID=11138623

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2414260A Expired GB905959A (en) 1959-07-11 1960-07-11 Method for the preparation of a zinc cyanamide

Country Status (4)

Country Link
CH (1) CH384556A (en)
ES (1) ES258904A1 (en)
FR (1) FR1258658A (en)
GB (1) GB905959A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5176894A (en) * 1991-12-06 1993-01-05 Wayne Pigment Corp. Process for making improved corrosion preventive zinc cyanamide
US5314532A (en) * 1991-09-04 1994-05-24 Sureguard, Inc. Soluble salt-free contaminant-free pigmented mirror coatings
US5378446A (en) * 1991-12-06 1995-01-03 Wayne Pigment Corporation Corrosion preventive zinc cyanamide and method
US5487779A (en) * 1993-11-19 1996-01-30 Wayne Pigment Corp. Corrosion inhibiting pigment composition and method
US5558706A (en) * 1993-11-19 1996-09-24 Wayne Pigment Corp. Corrosion inhibiting pigment composition
US5632810A (en) * 1991-09-04 1997-05-27 Sureguard, Inc. Pigmented mirror resin coatings
CN110194468A (en) * 2019-06-10 2019-09-03 陕西科技大学 A kind of In2.24(NCN)3Raw powder's production technology

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5314532A (en) * 1991-09-04 1994-05-24 Sureguard, Inc. Soluble salt-free contaminant-free pigmented mirror coatings
US5543227A (en) * 1991-09-04 1996-08-06 Sureguard, Inc. Soluble salt-free contaminant-free pigmented mirror coatings
US5632810A (en) * 1991-09-04 1997-05-27 Sureguard, Inc. Pigmented mirror resin coatings
US5753019A (en) * 1991-09-04 1998-05-19 Sureguard, Inc. Pigmented mirror resin coatings
US5176894A (en) * 1991-12-06 1993-01-05 Wayne Pigment Corp. Process for making improved corrosion preventive zinc cyanamide
US5378446A (en) * 1991-12-06 1995-01-03 Wayne Pigment Corporation Corrosion preventive zinc cyanamide and method
US5487779A (en) * 1993-11-19 1996-01-30 Wayne Pigment Corp. Corrosion inhibiting pigment composition and method
US5558706A (en) * 1993-11-19 1996-09-24 Wayne Pigment Corp. Corrosion inhibiting pigment composition
CN110194468A (en) * 2019-06-10 2019-09-03 陕西科技大学 A kind of In2.24(NCN)3Raw powder's production technology
CN110194468B (en) * 2019-06-10 2022-06-14 陕西科技大学 In2.24(NCN)3Method for preparing powder

Also Published As

Publication number Publication date
ES258904A1 (en) 1960-09-16
FR1258658A (en) 1961-04-14
CH384556A (en) 1964-11-30

Similar Documents

Publication Publication Date Title
BG49609A3 (en) Method frp preparing water suspensions, containing above 65% weight calcium carbonate
GB905959A (en) Method for the preparation of a zinc cyanamide
ATE12488T1 (en) ONE-STEP PROCESSES FOR THE PRODUCTION OF POLYAMINES FROM NCO-PREPOLYMERS, POLYAMINES AND THEIR USE IN THE PRODUCTION OF POLYURETHANES.
ES444944A1 (en) Process of sulfuric acid leaching silicated zinc ores
ES423325A1 (en) Production of synthetic fluorspar
GB1015067A (en) Production of solid potassium metabisulfite
US3492086A (en) Method of producing supersaturated solutions of aluminum fluoride
FR2419254A1 (en) PROCESS FOR THE PRODUCTION OF HYDROXYAPATITE AND SYNTHETIC BONE ASH OBTAINED FROM THIS HYDROXYAPATITE
GB962812A (en) Process for the production of finely dispersed calcium carbonate
US3615186A (en) Process of making hydrates of potassium-magnesium phosphates
GB782423A (en) Production of aluminium fluoride
GB902076A (en) Improvements relating to the production of silicon tetrachloride
GB1409688A (en) Production of crystalline aluminium sulphate
ES8201933A1 (en) Process for manufacturing a stable titanyl sulfate solution
GB833607A (en) Production of finely grained masses consisting mainly of calcium silicate or calcium silicate and silicic acid
ES269088A1 (en) Barium zirconium borate, pigments containing the same, and processes for their production
SU125797A1 (en) The method of obtaining sulfur selenium
BE828578A (en) PROCESS FOR THE PREPARATION OF STABILIZED CALCIUM SULPHATE LIKELY TO SET, BY REACTION OF CALCIUM COMPOUNDS WITH SULFURIC ACID
GB889769A (en) Slowly acting insulin preparation in crystalline form
US2690448A (en) Process for the manufacture of zinc ethylenebisdithiocarbamate
GB917038A (en) Manufacture of barium hydroxide
US3855402A (en) Process for production of tribasic lead sulphate monohydrate
GB848617A (en) Improvements in or relating to the preparation of anhydrite
JPS5515992A (en) Production of crystal type cryolite
RO86979B1 (en) Hydrothermal proceess for obtaining hematite