ES258904A1 - Method for the preparation of a zinc cyanamide - Google Patents

Method for the preparation of a zinc cyanamide

Info

Publication number
ES258904A1
ES258904A1 ES0258904A ES258904A ES258904A1 ES 258904 A1 ES258904 A1 ES 258904A1 ES 0258904 A ES0258904 A ES 0258904A ES 258904 A ES258904 A ES 258904A ES 258904 A1 ES258904 A1 ES 258904A1
Authority
ES
Spain
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
ES0258904A
Other languages
Spanish (es)
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 ES258904A1 publication Critical patent/ES258904A1/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.
ES0258904A 1959-07-11 1960-06-13 Method for the preparation of a zinc cyanamide Expired ES258904A1 (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
ES258904A1 true ES258904A1 (en) 1960-09-16

Family

ID=11138623

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0258904A Expired ES258904A1 (en) 1959-07-11 1960-06-13 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)

Families Citing this family (7)

* 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
US5632810A (en) * 1991-09-04 1997-05-27 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
US5558706A (en) * 1993-11-19 1996-09-24 Wayne Pigment Corp. Corrosion inhibiting pigment composition
US5487779A (en) * 1993-11-19 1996-01-30 Wayne Pigment Corp. Corrosion inhibiting pigment composition and method
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
GB905959A (en) 1962-09-12
FR1258658A (en) 1961-04-14
CH384556A (en) 1964-11-30

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