JPS56145106A - Preparation of aqueous solution of calcium nitrite - Google Patents

Preparation of aqueous solution of calcium nitrite

Info

Publication number
JPS56145106A
JPS56145106A JP4588680A JP4588680A JPS56145106A JP S56145106 A JPS56145106 A JP S56145106A JP 4588680 A JP4588680 A JP 4588680A JP 4588680 A JP4588680 A JP 4588680A JP S56145106 A JPS56145106 A JP S56145106A
Authority
JP
Japan
Prior art keywords
gas
slaked lime
slurry
oxidized
calcium nitrite
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.)
Granted
Application number
JP4588680A
Other languages
Japanese (ja)
Other versions
JPS5850926B2 (en
Inventor
Minoru Endo
Takashi Kusahara
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.)
Nissan Chemical Corp
Original Assignee
Nissan Chemical Corp
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 Corp filed Critical Nissan Chemical Corp
Priority to JP55045886A priority Critical patent/JPS5850926B2/en
Priority to DK398680A priority patent/DK156168C/en
Priority to DE3036605A priority patent/DE3036605C2/en
Priority to GB8031397A priority patent/GB2074993B/en
Priority to CA361,175A priority patent/CA1114133A/en
Priority to SE8006790A priority patent/SE438843B/en
Priority to NO802873A priority patent/NO154832C/en
Publication of JPS56145106A publication Critical patent/JPS56145106A/en
Publication of JPS5850926B2 publication Critical patent/JPS5850926B2/en
Expired legal-status Critical Current

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

PURPOSE: To prepare a high purity aqueous solution of calcium nitrite, in high efficiency, by absorbing a gas containing NO and NO2 obtained by the oxidation of ammonia, in a slaked lime slurry of a specific concentration under pressure at high temperature, and reacting the components.
CONSTITUTION: A gas mixture containing 5W12vol% of NO and NO2 wherein the molar ratio of NO/NO2 is 1.6W2.5 and having a temperature of 190W300°C is prepared by the oxidation of ammonia. The gas is introduced continuously into a slurry containing 20W40wt% of slaked lime under a pressure of 2W10kg/cm2 at a reaction temperature of 75W110°C, and made to react until the concentration of the remaining slaked lime decreases to 2W10wt%. Unabsorbed gas is recovered, chlorine gas is introduced into the recovered gas if necessary, and the gas mixture is oxidized at 85W150°C to obtain the oxidized gas wherein the total contents of NO and NO2 is 1W5vol% and the NO/NO2 molar ratio is 1.6W2.5. The oxidized gas is introduced into the aqueous slurry containing 2W10wt% of the residual slaked lime under a pressure of 2W10kg/cm2 keeping the reaction temperature at 75W110°C until the concentration of the remaining slaked lime decreases to ≤3wt%. The slurry is filtered to obtain the objective calcium nitrite solution.
COPYRIGHT: (C)1981,JPO&Japio
JP55045886A 1980-04-08 1980-04-08 Production method of calcium nitrite aqueous solution Expired JPS5850926B2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP55045886A JPS5850926B2 (en) 1980-04-08 1980-04-08 Production method of calcium nitrite aqueous solution
DK398680A DK156168C (en) 1980-04-08 1980-09-19 PROCEDURE FOR PREPARING Aqueous SOLUTION OF CALCIUM NITRIT
DE3036605A DE3036605C2 (en) 1980-04-08 1980-09-29 Process for preparing an aqueous solution of calcium nitrite
GB8031397A GB2074993B (en) 1980-04-08 1980-09-29 Process for producing aqueous solution of calcium nitrite
CA361,175A CA1114133A (en) 1980-04-08 1980-09-29 Process for producing aqueous solution of calcium nitrite
SE8006790A SE438843B (en) 1980-04-08 1980-09-29 PROCEDURE FOR PREPARING A WATER SOLUTION OF CALCIUM NITRIT WITH HIGH PURITY AND HIGH CONCENTRATION
NO802873A NO154832C (en) 1980-04-08 1980-09-29 PROCEDURE FOR THE PREPARATION OF AN Aqueous SOLUTION OF CALCIUM NITRIT.

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
JPS56145106A true JPS56145106A (en) 1981-11-11
JPS5850926B2 JPS5850926B2 (en) 1983-11-14

Family

ID=12731716

Family Applications (1)

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

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
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
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
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
DK398680A (en) 1981-10-09
GB2074993A (en) 1981-11-11
DK156168B (en) 1989-07-03
DK156168C (en) 1989-12-04
GB2074993B (en) 1983-08-10
SE8006790L (en) 1981-10-09
NO154832C (en) 1987-01-07
JPS5850926B2 (en) 1983-11-14
NO154832B (en) 1986-09-22
DE3036605C2 (en) 1987-04-16
NO802873L (en) 1981-10-09
SE438843B (en) 1985-05-13
DE3036605A1 (en) 1981-10-15
CA1114133A (en) 1981-12-15

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