SE8006790L - PROCEDURE FOR PREPARING WATER SOLUTION OF CALCIUM NITRIT - Google Patents

PROCEDURE FOR PREPARING WATER SOLUTION OF CALCIUM NITRIT

Info

Publication number
SE8006790L
SE8006790L SE8006790A SE8006790A SE8006790L SE 8006790 L SE8006790 L SE 8006790L SE 8006790 A SE8006790 A SE 8006790A SE 8006790 A SE8006790 A SE 8006790A SE 8006790 L SE8006790 L SE 8006790L
Authority
SE
Sweden
Prior art keywords
calcium
gas
nitrit
procedure
slurry
Prior art date
Application number
SE8006790A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE438843B (en
Inventor
M Endo
K Kusahara
Original Assignee
Nissan Chemical Ind Ltd
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 Nissan Chemical Ind Ltd filed Critical Nissan Chemical Ind Ltd
Publication of SE8006790L publication Critical patent/SE8006790L/en
Publication of SE438843B publication Critical patent/SE438843B/en

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
    • C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
    • C04B22/08—Acids or salts thereof
    • C04B22/085—Acids or salts thereof containing nitrogen in the anion, e.g. nitrites
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Treating Waste Gases (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Chemically Coating (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Abstract

An aqueous solution of calcium nitrite having high purity and concentration is obtained by contacting a nitrogen oxides containing gas (5 to 12 vol %) with a high concentration aqueous slurry of calcium hydroxide (20 to 40 wt %) by feeding the gas under an elevated pressure to prevent a concentration of said slurry, the unabsorbed gas being oxidized. The resulting gas is fed to the slurry obtained in the first instance so as to convert the residual calcium hydroxide to calcium nitrite without forming a calcium nitrate by-product. The process is preferably carried out as continuous process having a first reaction zone and a second reaction zone.
SE8006790A 1980-04-08 1980-09-29 PROCEDURE FOR PREPARING A WATER SOLUTION OF CALCIUM NITRIT WITH HIGH PURITY AND HIGH CONCENTRATION SE438843B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55045886A JPS5850926B2 (en) 1980-04-08 1980-04-08 Production method of calcium nitrite aqueous solution

Publications (2)

Publication Number Publication Date
SE8006790L true SE8006790L (en) 1981-10-09
SE438843B SE438843B (en) 1985-05-13

Family

ID=12731716

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8006790A SE438843B (en) 1980-04-08 1980-09-29 PROCEDURE FOR PREPARING A WATER SOLUTION OF CALCIUM NITRIT WITH HIGH PURITY AND HIGH CONCENTRATION

Country Status (7)

Country Link
JP (1) JPS5850926B2 (en)
CA (1) CA1114133A (en)
DE (1) DE3036605C2 (en)
DK (1) DK156168C (en)
GB (1) GB2074993B (en)
NO (1) NO154832C (en)
SE (1) SE438843B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6088711U (en) * 1983-11-22 1985-06-18 株式会社吉野工業所 Primary molded product of biaxially stretched blow molded wide mouth bottle
JPS6088710U (en) * 1983-11-22 1985-06-18 株式会社吉野工業所 Primary molded product of biaxially stretched blow molded wide mouth bottle
JPS60101118U (en) * 1983-12-15 1985-07-10 株式会社吉野工業所 Molding mold equipment for biaxially stretched blow-molded wide-mouth bottles
JPS60105116U (en) * 1983-12-21 1985-07-18 株式会社吉野工業所 Primary molded product of biaxially stretched blow molded bottle
WO2011163587A1 (en) * 2010-06-25 2011-12-29 Board Of Governors For Higher Education,State Of Rhode Island And Providence Plantations Self-mending composites incorporating encapsulated mending agents
EP3536677A1 (en) * 2018-03-05 2019-09-11 Yara International ASA A setting and hardening accelerator for a cement, mortar or concrete composition, optionally comprising supplementary cementitious materials, and use of this accelerator

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA967723A (en) * 1970-04-01 1975-05-20 Martin M. Wendel Manufacture of nitrites
JPS5443196A (en) * 1977-09-13 1979-04-05 Nissan Chem Ind Ltd Prduction of aqueous solution of calcium nitrite

Also Published As

Publication number Publication date
CA1114133A (en) 1981-12-15
JPS56145106A (en) 1981-11-11
GB2074993A (en) 1981-11-11
NO154832C (en) 1987-01-07
DE3036605A1 (en) 1981-10-15
GB2074993B (en) 1983-08-10
DK398680A (en) 1981-10-09
JPS5850926B2 (en) 1983-11-14
DK156168C (en) 1989-12-04
SE438843B (en) 1985-05-13
NO154832B (en) 1986-09-22
DK156168B (en) 1989-07-03
DE3036605C2 (en) 1987-04-16
NO802873L (en) 1981-10-09

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