CN1059196C - Prepn. tech. of zinc acetate - Google Patents

Prepn. tech. of zinc acetate Download PDF

Info

Publication number
CN1059196C
CN1059196C CN97119831A CN97119831A CN1059196C CN 1059196 C CN1059196 C CN 1059196C CN 97119831 A CN97119831 A CN 97119831A CN 97119831 A CN97119831 A CN 97119831A CN 1059196 C CN1059196 C CN 1059196C
Authority
CN
China
Prior art keywords
zinc acetate
mother liquor
water
zinc
temperature
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 - Fee Related
Application number
CN97119831A
Other languages
Chinese (zh)
Other versions
CN1221727A (en
Inventor
徐同香
Original Assignee
徐同香
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 徐同香 filed Critical 徐同香
Priority to CN97119831A priority Critical patent/CN1059196C/en
Publication of CN1221727A publication Critical patent/CN1221727A/en
Application granted granted Critical
Publication of CN1059196C publication Critical patent/CN1059196C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

The present invention belongs to the field of inorganic chemical industry, which relates to a preparation process of zinc acetate. The present invention adopts the raw materials of zinc oxide, glacial acetic acid, water and the mother liquor of the zinc acetate, the raw materials are heated at high temperature in the existence of a catalyst, and the zinc acetate is prepared by filtration concentration, crystallization and dehydration. The present invention has the advantages of feasible principle reference, high conversion rate of the zinc acetate, simple equipment and short technological process; in addition, the mother liquor is recovered, so raw materials can be fully utilized; a closed cycle is formed, and no waste gas, waste water or waste slag is exhausted so environment is not polluted.

Description

Preparation process of zinc acetate
The invention belongs to the field of inorganic chemical industry, and relates to a preparation process of zinc acetate.
Zinc acetate is an important chemical raw material and is widely applied to various industries. Can be used as a special catalyst in the industryof producing the vinyl acetate and the vinylon, and is also an important raw material for manufacturing the zinc salt. In addition, the paint is widely used in industries such as mordant, wood preservative, enamel, printing and dyeing, electroplating and the like.
The invention aims to provide a zinc acetate preparation process which has feasible principle, high conversion rate, short process flow, no discharge of three wastes in the production process and no pollution to the environment.
The object of the invention can be achieved by the following measures:
a process for preparing zinc acetate from glacial acetic acid, zinc oxide and water includes high-temp heating, concentrating, crystallizing and dewatering in the presence of catalyst
Mixing zinc oxide, glacial acetic acid, water and zinc acetate mother liquor according to the weight ratio of 1: 1.2-1.8: 2-5, heating and stirring uniformly, adding a catalyst, heating to raise the temperature to 95-97 ℃, stirring at constant temperature for 30-40 minutes to obtain the Baume degree of 32-38, filtering the precipitate, concentrating the liquid material, then putting the liquid material into a crystallization tank for crystallization, and recovering the zinc acetate mother liquor; dehydrating the crystal at a high temperature of more than 100 ℃, and recovering zinc acetate mother liquor to obtain a product zinc acetate.
The object of the invention is also achieved by the following measures:
in the preparation process of the zinc acetate, the added catalyst is hydrogen peroxide, and the adding amount of the hydrogen peroxide is 0.01 to 0.02 time of the weight of the zinc oxide; wherein the water and the zinc acetate mother liquor can be replaced by water, and the weight ratio of the water and the zinc acetate mother liquor is unchanged.
Compared with the prior art, the invention has the following advantages:
the method is feasible according to the principle, the conversion rate of the zinc acetate is higher, the equipment is simple, the preparation process flow is short, the closed cycle is adopted, the raw materials are fully utilized, and no waste gas, waste water or waste residue is discharged in the process, so the method does not pollute the environment.
The attached drawing is a process flow schematic diagram of the invention:
the invention will be further described in detail with reference to the following embodiments:
the first embodiment is as follows:
mixing zinc oxide, glacial acetic acid, water and zinc acetate mother liquor according to the weight ratio of 1: 1.4: 3, heating by steam, stirring uniformly, adding hydrogen peroxide with the weight of 0.01 times that of the zinc oxide, heating to raise the temperature to 95 ℃, stirring at constant temperature for 32 minutes to obtain the Baume degree of 35, filtering the precipitate, concentrating the liquid material, then putting into a crystallization tank for crystallization, and recovering the zinc acetate mother liquor; dehydrating the obtained crystal at a high temperature of 105 ℃, and recovering the zinc acetate mother liquor to obtain the zinc acetate.
Example two:
mixing zinc oxide, glacial acetic acid, water and zinc acetate mother liquor according to the weight ratioof 1: 1.8: 4.5, heating by steam, uniformly stirring, adding hydrogen peroxide, wherein the weight of hydrogen peroxide is 0.012 times of that of zinc oxide, heating to 97 ℃, stirring at constant temperature for 40 minutes until the Baume degree is 38, filtering the precipitate, concentrating the liquid material, then putting into a crystallization tank for crystallization, and recovering the zinc acetate mother liquor; dehydrating the obtained crystal at 120 ℃, and recovering zinc acetate mother liquor to obtain the zinc acetate.
Example three:
mixing zinc oxide, glacial acetic acid, water and zinc acetate mother liquor according to the weight ratio of 1: 1.6: 4, heating by steam, stirring uniformly, adding hydrogen peroxide with the weight of 0.014 times that of the zinc oxide, heating to raise the temperature to 96 ℃, stirring at constant temperature for 38 minutes to obtain the Baume degree of 36, filtering the precipitate, concentrating the liquid material, then putting into a crystallization tank for crystallization, and recovering the zinc acetate mother liquor; dehydrating the obtained crystal at a high temperature of 110 ℃, and recovering the zinc acetate mother liquor to obtain the zinc acetate.
Example four:
mixing zinc oxide, glacial acetic acid, water and zinc acetate mother liquor according to the weight ratio of 1: 1.7: 5, heating by steam, stirring uniformly, adding hydrogen peroxide with the weight of 0.016 times of that of the zinc oxide, heating to 97 ℃, stirring at constant temperature for 35 minutes until the Baume degree is 34, filtering the precipitate, concentrating the liquid material, then putting into a crystallization tank for crystallization, and recovering the zinc acetate mother liquor; dehydrating the obtained crystal at 125 ℃, and recovering the zinc acetate mother liquor to obtain the zinc acetate.
Example five:
mixing zinc oxide, glacial acetic acid, water and zinc acetate mother liquor according to the weight ratio of 1: 1.5: 3.5, heating by steam, uniformly stirring, adding hydrogen peroxide, wherein the weight of hydrogen peroxide is 0.018 times of that of zinc oxide, heating to raise the temperature to 95 ℃, stirring at constant temperature for 30 minutes to obtain the Baume degree of 32, filtering the precipitate, concentrating the liquid material, then putting the liquid material into a crystallization tank for crystallization, and recovering the zinc acetate mother liquor; dehydrating the obtained crystal at the high temperature of 115 ℃, and recovering the zinc acetate mother liquor to obtain the zinc acetate.
Example six:
mixing zinc oxide, glacial acetic acid and water according to the weight ratio of 1: 1.2: 2.5, heating by steam, uniformly stirring, adding hydrogen peroxide, heating to raise the temperature to 96 ℃, stirring at constant temperature for 37 minutes to obtain the Baume degree of 33, filtering the precipitate, concentrating the liquid material, then putting the concentrated liquid material into a crystallization tank for crystallization, and recovering the zinc acetate mother liquor; dehydrating the obtained crystal at 130 ℃, and recovering zinc acetate mother liquor to obtain the zinc acetate.

Claims (3)

1. A zinc acetate preparation process is characterized in that zinc oxide, glacial acetic acid, water and zinc acetate mother liquor are mixed according to the weight ratio of 1: 1.2-1.8: 2-5, then are heated and stirred uniformly, then are added with a catalyst, are heated to raise the temperature to 95-97 ℃, are stirred for 30-40 minutes at constant temperature, measure Baume degree to be 32-38, then are filtered,concentrated, then are put into a crystallization tank for crystallization, and are recycled; dehydrating the obtained crystal at a high temperature of more than 100 ℃, and recovering zinc acetate mother liquor to obtain a product zinc acetate.
2. The process for preparing zinc acetate according to claim 1, wherein the catalyst is hydrogen peroxide, and the amount of the catalyst added is 0.01 to 0.02 times of the weight of the zinc oxide.
3. The process for preparing zinc acetate according to claim 1, wherein the water and the mother liquid of zinc acetate in the raw materials can be replaced by water, and the weight ratio of the water and the mother liquid of zinc acetate is unchanged.
CN97119831A 1997-12-30 1997-12-30 Prepn. tech. of zinc acetate Expired - Fee Related CN1059196C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN97119831A CN1059196C (en) 1997-12-30 1997-12-30 Prepn. tech. of zinc acetate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN97119831A CN1059196C (en) 1997-12-30 1997-12-30 Prepn. tech. of zinc acetate

Publications (2)

Publication Number Publication Date
CN1221727A CN1221727A (en) 1999-07-07
CN1059196C true CN1059196C (en) 2000-12-06

Family

ID=5175600

Family Applications (1)

Application Number Title Priority Date Filing Date
CN97119831A Expired - Fee Related CN1059196C (en) 1997-12-30 1997-12-30 Prepn. tech. of zinc acetate

Country Status (1)

Country Link
CN (1) CN1059196C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100383297C (en) * 2005-03-30 2008-04-23 宁波大学 Nonlinear optical crystal and preparation method thereof
CN102417446A (en) * 2011-10-31 2012-04-18 广西亿康药业股份有限公司 Production method for zinc undecylenate
CN103360233A (en) * 2012-03-28 2013-10-23 宜兴新威利成稀土有限公司 Method for converting neodymium oxide into neodymium acetate crystal

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103113212A (en) * 2013-03-13 2013-05-22 南通市纳百园化工有限公司 Method for preparing industrial zinc acetate through zinc acetate residues and application thereof
CN104557506A (en) * 2014-12-08 2015-04-29 长沙罗斯科技有限公司 Preparation technology of stannous acetate
CN104649889B (en) * 2015-02-09 2016-09-21 郑景宜 Acetic acid raw material producing metal acetate salt and preparation method thereof and special equipment
CN113563177A (en) * 2021-08-20 2021-10-29 核工业理化工程研究院 Preparation process of depleted anhydrous zinc acetate
CN113620800A (en) * 2021-08-20 2021-11-09 三门核电有限公司 Preparation process of depleted anhydrous zinc acetate

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5331096A (en) * 1976-09-02 1978-03-23 Toshiba Corp Liquid level control device in secondary cooling system device of fast breeder

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5331096A (en) * 1976-09-02 1978-03-23 Toshiba Corp Liquid level control device in secondary cooling system device of fast breeder

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100383297C (en) * 2005-03-30 2008-04-23 宁波大学 Nonlinear optical crystal and preparation method thereof
CN102417446A (en) * 2011-10-31 2012-04-18 广西亿康药业股份有限公司 Production method for zinc undecylenate
CN103360233A (en) * 2012-03-28 2013-10-23 宜兴新威利成稀土有限公司 Method for converting neodymium oxide into neodymium acetate crystal

Also Published As

Publication number Publication date
CN1221727A (en) 1999-07-07

Similar Documents

Publication Publication Date Title
CN1059196C (en) Prepn. tech. of zinc acetate
CN1439599A (en) Production for stable chlorinedioxide solution
CN1177944C (en) Method of producing tungstic acid by closed type hydrochloric acid decompose tunstite
CN102030630B (en) Method for producing industrial grade sodium gluconate or calcium gluconate from yellow ginger starch
CN103540996A (en) Method for producing calcium sulfate whiskers from waste sulfuric acid
CN1051366A (en) Propenyl dimethyl ammonium chloride-acrylamide
CN105363352A (en) Method for synthesizing high acid resistant MOR zeolite molecular sieve membrane from fluorine-containing dilute solution
CN102603514B (en) Process for preparing sodium gluconate from crop straws
CN1381401A (en) Process and equipment for preparing aluminium polychloride
CN105439211A (en) Energy-saving environmental-protection production method for iron oxide black pigment
CN1301908C (en) Method of preparing aluminum fluoride
CN208980341U (en) A kind of system that acidic etching waste liquid prepares micron cuprous oxide
CN106350870A (en) Disposal and utilization method for sulfuric acid waste liquid
CN1114638A (en) Process for producing ferrous sulfate by using sulfuric acid to leach pyrite cinder
CN1903735A (en) Method of producing iron oxide red using ferrous sulphate
CN1524841A (en) Method for reclaiming calcium oxalate from sewage comprising oxalic acid
CN1281511C (en) Prepn process of liquid polymerized ferric sulfate by means of oxidizing catalyst
CN104790041B (en) Method for preparing semi-hydrated gypsum whisker from mirabilite and calcium solution
CN1156430C (en) Homogeneous oxidizing process for preparing 3,5-dimethylbenzoic acid from sym-tritoluene
CN108456488A (en) A kind of photovoltaic coating and preparation method improving solar energy conversion
CN215028840U (en) A device for green degradation of polyethylene glycol terephthalate
CN216499193U (en) Production device of 2-nitro-4-methylsulfonylbenzoic acid
CN206375671U (en) The process units of the catalyst produced applied to glycol ether
CN208166890U (en) Interval catalytic reaction rectification prepares the device of dibutyl phthalate
CN207361806U (en) A kind of preparation system of high-activity nano zinc oxide

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee