CN1046143A - The production method of industrial sodium bicarbonate and agricultural ammonium chloride - Google Patents

The production method of industrial sodium bicarbonate and agricultural ammonium chloride Download PDF

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Publication number
CN1046143A
CN1046143A CN 89105889 CN89105889A CN1046143A CN 1046143 A CN1046143 A CN 1046143A CN 89105889 CN89105889 CN 89105889 CN 89105889 A CN89105889 A CN 89105889A CN 1046143 A CN1046143 A CN 1046143A
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CN
China
Prior art keywords
mother liquor
acid
ammonium chloride
metathesis
sodium bicarbonate
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.)
Pending
Application number
CN 89105889
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Chinese (zh)
Inventor
刘明理
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Sichuan University
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Sichuan University
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Filing date
Publication date
Application filed by Sichuan University filed Critical Sichuan University
Priority to CN 89105889 priority Critical patent/CN1046143A/en
Publication of CN1046143A publication Critical patent/CN1046143A/en
Pending legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D7/00—Carbonates of sodium, potassium or alkali metals in general
    • C01D7/02—Preparation by double decomposition
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00—Ammonia; Compounds thereof
    • C01C1/02—Preparation, purification or separation of ammonia
    • C01C1/12—Separation of ammonia from gases and vapours
    • C01C1/14—Saturators

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

It is raw material that the present invention adopts industrial sodium-chlor and agricultural ammonium bicarbonate, adds with H 2O, NH 4HCO 3, NH 4In the mother liquor of Cl and acid, alkali or salt preparation, produce the method for industrial sodium bicarbonate and agricultural ammonium chloride through replacement(metathesis)reaction.Its chemical equation is:
NaCl+NH 4HCO 3＝NaHCO 3+NH 4Cl。

Description

The production method of industrial sodium bicarbonate and agricultural ammonium chloride
The present invention is the method for replacement(metathesis)reaction manufacture sodium bicarbonate and agricultural ammonium chloride.
Sodium bicarbonate is a kind of important chemical material, is divided into edible and industrial two kinds, and its production method all adopts soda ash carborization (seeing " Chemical Manufacture flowchart illustrations " enlarged edition, first volume 168-169 page or leaf, Chemical Industry Press's publication).This method is with soda ash (or the heavy alkali decompose) buck of making soluble in water, after filtration, impurity elimination, sends in the carbonating tower again, carries out carbonization with washed limestone kiln kiln gas, and sodium bicarbonate is crystallized out again.Chemical equation is as follows:
Get product after washing after filtration,, the drying.
The main drawback of aforementioned production method is raw material (soda ash) cost height, and technical process is long, and certain environmental pollution (from the limestone kiln) is arranged.
In order to overcome the problem that soda ash carborization manufacture sodium bicarbonate exists, the inventor has proposed the method for a kind of circulating replacement(metathesis)reaction manufacture sodium bicarbonate and agricultural ammonium chloride.
The present invention is achieved in that selecting industrial sodium-chlor and agricultural ammonium bicarbonate for use is raw material, adds in the mother liquor of preparation in advance, obtains industrial sodium bicarbonate and agricultural ammonium chloride through replacement(metathesis)reaction.Chemical equation is:
Proportioning raw materials (weight %) is:
Mother liquor 80-82 NaCl 7-9 NH 4HCo 310-12
(2) in the formula, mother liquor impels replacement(metathesis)reaction to carry out smoothly, produces highly purified product, and can recycle.Mother liquor is by H 2O, NH 4HCo 3, NH 4Cl and acid, alkali or salt are mixed with, and proportioning (weight %) is:
H 2O 60-70 NH 4Cl 9-13
NH 4HCo 33-5 acid, alkali or salt 6-9
In mother liquor, acid, alkali or salt are one or several outside the raw material in the reaction formula (2).As SODIUMNITRATE, ammonium nitrate, sodium sulfate, ammonium sulfate, ammonium thiocyanate, sulfuric acid, nitric acid, hydrochloric acid, yellow soda ash and ammonia etc.Experiment shows that acid, alkali or salt solute play effects such as activation, mass transfer, buffering, " storage capacity " and removal of impurities in replacement(metathesis)reaction.
Production technique of the present invention is divided into two procedures and carries out.That is:
First procedure, heating to the mother liquor of 28C-35 ℃ of temperature, add solid ammonium bicarbonate, separate out solid sodium bicarbonate, after separating after filtration,, washing, in 50-55 ℃ of temperature, dry, perhaps 120-130 ℃ following moment air stream drying, total alkalinity is an industrial sodium bicarbonate product more than 99%.
Second operation work is cooled to 10-20 ℃ with filtering remaining mother liquor in first procedure, adds industrial solid sodium chloride, separate out solid ammonium chloride, after filtration, separate, washing, in 110-120 ℃ of temperature, dry, purity is agricultural ammonium chloride product more than 98%.
Second operation is filtered remaining mother liquor be used further to first operation, recycle, this has just formed the method for circulating replacement(metathesis)reaction manufacture sodium bicarbonate and agricultural ammonium chloride.
Implementing best way of the present invention is exemplified below:
1. preparation mother liquor adds 3.9 kilograms of SODIUMNITRATE in 62.5 kg of water, make it dissolving, adds purity again and be 96% 4.5 kilograms in bicarbonate of ammonia, purity and be 98% 13.8 kilograms of ammonium chlorides, purity and be 11.2 kilograms in 98% sodium-chlor, heating for dissolving.
2. add purity when mother liquor being warming up to 32 ℃ and be 12.6 kilograms of 96% solid ammonium bicarbonate.Constantly stir, react 1.5 hours, filtering separation is washed with little water, dries in 50-55 ℃ of temperature, promptly gets total alkalinity and be 11.7 kilograms of industrial sodium bicarbonates more than 99%.
3. when filtering remaining mother liquor in first operation and be cooled to 17 ℃, add purity and be 9.2 kilograms of 98% solid sodium chlorides, reacted 1.2 hours, filtering separation, with little water washing, under 120 ℃ of temperature, dry, can get purity and be the agricultural ammonium chloride more than 98%.
4. add 0.087 kilogram of yellow soda ash solid in the remaining mother liquor with filtering in second operation, adjust various ionic concn ratios in the mother liquor, just can carry out second and take turns circulation.
The present invention compares with the soda carbonization method has following characteristics:
1. because the industrial sodium chloride of employing and agricultural ammonium bicarbonate are raw material, reduced cost of material.
2. adopt the solvent of one or several compositions in water and acid, alkali or the salt, realized step chemical reaction manufacture sodium acid carbonate and two kinds of products of agricultural ammonium chloride, and shortened the technological process of production.
3. adopt the Recycling Mother Solution using method, eliminated environmental pollution.

Claims (3)

1, industrial sodium-chlor of a kind of usefulness and agricultural ammonium bicarbonate are raw material, through the method for replacement(metathesis)reaction manufacture sodium bicarbonate and agricultural ammonium chloride, are characterised in that in the metathesis process, add H 2O, NH 4HCO 3, NH 4The mother liquor of Cl and acid, alkali or salt preparation, its chemical equation is:
In the formula, the proportioning of mother liquor (weight %) is:
H 2O 60--70 NH 4Cl 9--13
NH 4HCO 33--5 acid, alkali or salt 6--9,
The proportioning of raw material and mother liquor (weight %) is:
Mother liquor 80--82 NaCl 7--9 NH 4HCO 310--12,
2, according to claim 1, acid in the mother liquor, alkali or salt are one or several outside the raw material in the reaction formula, as SODIUMNITRATE, sodium sulfate, ammonium nitrate, ammonium sulfate, hydrochloric acid, nitric acid, sulfuric acid, yellow soda ash, volatile salt, ammonia etc., these solvents play effects such as catalysis, mass transfer, removal of impurities in replacement(metathesis)reaction.
3, according to claim 1 or 2, the mother liquor of preparation can recycle, and forms the method for circulating replacement(metathesis)reaction manufacture sodium bicarbonate and agricultural ammonium chloride.
CN 89105889 1989-04-06 1989-04-06 The production method of industrial sodium bicarbonate and agricultural ammonium chloride Pending CN1046143A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 89105889 CN1046143A (en) 1989-04-06 1989-04-06 The production method of industrial sodium bicarbonate and agricultural ammonium chloride

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 89105889 CN1046143A (en) 1989-04-06 1989-04-06 The production method of industrial sodium bicarbonate and agricultural ammonium chloride

Publications (1)

Publication Number Publication Date
CN1046143A true CN1046143A (en) 1990-10-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 89105889 Pending CN1046143A (en) 1989-04-06 1989-04-06 The production method of industrial sodium bicarbonate and agricultural ammonium chloride

Country Status (1)

Country Link
CN (1) CN1046143A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102107891A (en) * 2011-01-21 2011-06-29 刘松林 Method for treating free ammonia during sodium bicarbonate production and application
CN102107889A (en) * 2011-01-21 2011-06-29 刘松林 Method for treating ammonium chloride in sodium bicarbonate mother solution at normal temperature
CN102107890A (en) * 2011-01-21 2011-06-29 刘松林 Treatment method and application of mother liquor in production process of sodium bicarbonate
CN109608409A (en) * 2018-10-23 2019-04-12 中国中轻国际工程有限公司 A kind of ammonia chloride craft containing cyanuric acid of brine production containing cyanuric acid
CN110304640A (en) * 2019-07-15 2019-10-08 钟广新 A kind of sodium bicarbonate production method
CN114538471A (en) * 2022-01-13 2022-05-27 宁波弗镁瑞环保科技有限公司 Method for comprehensively utilizing sodium sulfate-sodium chloride mixed salt
CN114751430A (en) * 2022-04-07 2022-07-15 湖南化工设计院有限公司 Method for preparing baking soda and coproducing ammonium chloride by low-temperature bidirectional salting-out circulation method

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102107891A (en) * 2011-01-21 2011-06-29 刘松林 Method for treating free ammonia during sodium bicarbonate production and application
CN102107889A (en) * 2011-01-21 2011-06-29 刘松林 Method for treating ammonium chloride in sodium bicarbonate mother solution at normal temperature
CN102107890A (en) * 2011-01-21 2011-06-29 刘松林 Treatment method and application of mother liquor in production process of sodium bicarbonate
CN102107889B (en) * 2011-01-21 2015-02-18 衡阳市春茂化工有限公司 Method for treating ammonium chloride in sodium bicarbonate mother solution at normal temperature
CN102107891B (en) * 2011-01-21 2015-03-18 衡阳市春茂化工有限公司 Method for treating free ammonia during sodium bicarbonate production and application
CN109608409A (en) * 2018-10-23 2019-04-12 中国中轻国际工程有限公司 A kind of ammonia chloride craft containing cyanuric acid of brine production containing cyanuric acid
CN110304640A (en) * 2019-07-15 2019-10-08 钟广新 A kind of sodium bicarbonate production method
CN114538471A (en) * 2022-01-13 2022-05-27 宁波弗镁瑞环保科技有限公司 Method for comprehensively utilizing sodium sulfate-sodium chloride mixed salt
CN114751430A (en) * 2022-04-07 2022-07-15 湖南化工设计院有限公司 Method for preparing baking soda and coproducing ammonium chloride by low-temperature bidirectional salting-out circulation method
CN114751430B (en) * 2022-04-07 2023-12-01 湖南化工设计院有限公司 Method for producing sodium bicarbonate and co-producing ammonium chloride by low-temperature bidirectional salting-out circulation method

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