CN104397018A - Isothiazolinone water treatment bactericide and preparation method thereof - Google Patents

Isothiazolinone water treatment bactericide and preparation method thereof Download PDF

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Publication number
CN104397018A
CN104397018A CN201410649183.XA CN201410649183A CN104397018A CN 104397018 A CN104397018 A CN 104397018A CN 201410649183 A CN201410649183 A CN 201410649183A CN 104397018 A CN104397018 A CN 104397018A
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CN
China
Prior art keywords
isothiazolinone
water treatment
wetting agent
trimethylamine
chlorine dioxide
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
CN201410649183.XA
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Chinese (zh)
Inventor
胡玉国
梁海臣
李靖
张冠洲
张有强
张凤跃
肖劲松
孙红桃
李东
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.)
TIANJIN DAGANG OILFIELD BINGANG GROUP BOHONG PETROLEUM CHEMICAL CO Ltd
Original Assignee
TIANJIN DAGANG OILFIELD BINGANG GROUP BOHONG PETROLEUM CHEMICAL CO 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 TIANJIN DAGANG OILFIELD BINGANG GROUP BOHONG PETROLEUM CHEMICAL CO Ltd filed Critical TIANJIN DAGANG OILFIELD BINGANG GROUP BOHONG PETROLEUM CHEMICAL CO Ltd
Priority to CN201410649183.XA priority Critical patent/CN104397018A/en
Publication of CN104397018A publication Critical patent/CN104397018A/en
Pending legal-status Critical Current

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Abstract

The invention relates to an isothiazolinone water treatment bactericide, which is characterized by being composed of, by weight, 60-75% of deionized water, 5%-12% of benzyl chloride, 2%-4% of a wetting agent, 6%-12% of trimethylamine, 1.5%-4.5% of isothiazolinone, and 4%-8% of chlorine dioxide. The preparation process includes: adding deionized water, benzyl chloride, the wetting agent, trimethylamine, isothiazolinone and chlorine dioxide sequentially into a stirring reactor to conduct stirring for 30min, thus obtaining a liquid product. The isothiazolinone water treatment bactericide provided by the invention has no corrosivity, no irritation and no foam, is an upgrade product of the oilfield SRB bactericide, and the product effect reaches the domestic leading level. In addition, the preparation process has the advantages of simple operation, no emission of pollutants, mild reaction conditions, and low energy consumption, thus meeting the requirements of sustainable development.

Description

A kind of isothiazolinone water treatment biocide and preparation method thereof
Technical field
The invention belongs to water treatment field, be specifically related to oil field reinjection water treatment agent, refer to a kind of isothiazolinone water treatment biocide and preparation method thereof especially.
Background technology
In tertiary oil production in oil field note is poly-, need a large amount of reinjected water, owing to generally all containing the bacteriums such as sulfate reducing bacteria (SRB), saprophytic bacteria (TGB) and iron bacteria, the raised growth of these bacteriums and breeding in reinjected water, not only reservoir is caused damage blocking, affect development effectiveness, cause oil recovery factor to decline, and make water injection well pressure increase, water injecting consumption rises, therefore, bactericide is selected will to start with for these bacteriums.Reinjected water contains higher calcium ions and magnesium ions simultaneously, easily make waterflood-transmission line and stratum serious scale, thus cause waterflood-transmission line and formation blockage, these cause huge economic loss all to oil field production run, therefore, generally all need to add bactericide before produced-water reinjection and carry out pretreatment.
Because the vitality of bacterium is extremely strong, any one bactericide length service time all can make bacterial resistance occurred, causes the problems such as the germicidal efficiency of bactericide declines, dose increase, therefore, needs constantly to develop new oil field bactericide.China has made extensive work in the research and development of oil field bactericide, at present still based on SAA series bactericidal agent.Along with the development of water technology, people have higher requirement to bactericide.
In sum, in order to raise the efficiency, reduce costs, development environment close friend, potion multiple-effect, adapt to bacterial dissociation pesticide resistance, adapt to different quality, inevitable direction that new product that compatibility is good is bactericide development.
Summary of the invention
The object of the present invention is to provide a kind of oil-field flooding bactericide and manufacture method thereof, mainly solve the problem existing for above-mentioned prior art, maximum bacterium is endangered for oil field, as sulfate reducing bacteria, iron bacteria and saprophytic bacteria, and then a kind of isothiazolinone water treatment biocide of development.
The technical solution adopted in the present invention is as follows:
A kind of isothiazolinone water treatment biocide, it is characterized in that being made up of benzyl chloride, wetting agent, Trimethylamine, isothiazolinone, chlorine dioxide, deionized water, the percentage by weight of each component is:
Deionized water: 50%-75%
Benzyl chloride: 5%-12%
Wetting agent: 2%-4%
Trimethylamine: 6%-12%
Isothiazolinone: 1.5%-4.5%
Chlorine dioxide: 4%-8%.
Further, described a kind of isothiazolinone water treatment biocide be by percentage by weight be deionized water 60-75%, benzyl chloride 7%-8%, wetting agent 2%-3%, Trimethylamine 7%-8.5%, isothiazolinone 2.5%-3%, chlorine dioxide 5%-6% form.
Further, described wetting agent is the one in neopelex, water-solubleazone, spaonin powder.
A preparation method for isothiazolinone water treatment biocide, is characterized in that step is as follows:
Deionized water, benzyl chloride, wetting agent, Trimethylamine, isothiazolinone, chlorine dioxide are added stirred reactor by example successively in mass ratio, stir 30min, obtain light green color or blue liquid.
Beneficial effect of the present invention is:
A kind of isothiazolinone water treatment biocide non-corrosiveness of the present invention, nonirritant, non-foam, it is the regeneration product of oil field SRB bactericide, effectively can solve the resistance problems of sulfate reducing bacteria, and there is good compatibility, can effectively kill and suppress oil field sulfate reductive bacterium, be that a kind of to have height bactericidal effect, pH value be neutral environment-friendly type bactericide, product effect reaches domestically leading level.In addition, a kind of isothiazolinone water treatment biocide preparation technology of the present invention is simple to operate, and without any pollutant emission, reaction condition is gentle, and energy consumption is low.
Embodiment
The following examples further illustrate of the present invention, instead of limit the scope of the invention.
Embodiment one:
Choose raw material by weight percentage
Deionized water: 65%
Benzyl chloride: 10.5%
Wetting agent: 3.5%
Trimethylamine: 10.5%
Isothiazolinone: 3.5%
Chlorine dioxide: 7%
Deionized water, benzyl chloride, wetting agent, Trimethylamine, isothiazolinone, chlorine dioxide are added stirred reactor successively, stirs 30min, obtain product.
Embodiment two:
Choose raw material by weight percentage
Deionized water: 71.5%
Benzyl chloride: 8%
Wetting agent: 4%
Trimethylamine: 8.5%
Isothiazolinone: 3%
Chlorine dioxide: 6%
Deionized water, benzyl chloride, wetting agent, Trimethylamine, isothiazolinone, chlorine dioxide are added stirred reactor successively, stirs 30min, obtain product.
Embodiment three:
Choose raw material by weight percentage
Deionized water: 68%
Benzyl chloride: 10%
Wetting agent: 3%
Trimethylamine: 8%
Isothiazolinone: 4%
Chlorine dioxide: 7%
Deionized water, benzyl chloride, wetting agent, Trimethylamine, isothiazolinone, chlorine dioxide are added stirred reactor successively, stirs 30min, obtain product.
The bactericidal effect table of embodiment is as shown in table 1:
The bactericidal effect of table 1 embodiment
As can be seen from the above table, the product of embodiments of the invention 1, embodiment 2, embodiment 3 is excellent to the bactericidal effect of the bacteriums such as the sulfate reducing bacteria in oil field reinjection water, saprophytic bacteria and iron bacteria, fullys meet the requirement of the present invention to isothiazolinone water treatment biocide bactericidal effect.
Above embodiments of the invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the present patent application scope change and improve, and all should belong within patent covering scope of the present invention.

Claims (4)

1. an isothiazolinone water treatment biocide, it is characterized in that being made up of benzyl chloride, wetting agent, Trimethylamine, isothiazolinone, chlorine dioxide, deionized water, the percentage by weight of each component is:
Deionized water: 60%-75%
Benzyl chloride: 5%-12%
Wetting agent: 2%-4%
Trimethylamine: 6%-12%
Isothiazolinone: 1.5%-4.5%
Chlorine dioxide: 4%-8%.
2. a kind of isothiazolinone water treatment biocide according to claim 1, it is characterized in that its be by percentage by weight be deionized water 60-75%, benzyl chloride 7%-8%, wetting agent 2%-3%, Trimethylamine 7%-8.5%, isothiazolinone 2.5%-3%, chlorine dioxide 5%-6% form.
3. a kind of isothiazolinone water treatment biocide according to claim 1, is characterized in that: described wetting agent is the one in neopelex, water-solubleazone, spaonin powder.
4. a preparation method for isothiazolinone water treatment biocide, is characterized in that step is as follows:
Deionized water, benzyl chloride, wetting agent, Trimethylamine, isothiazolinone, chlorine dioxide are added stirred reactor by example successively in mass ratio, stir 30min, obtain light green color or blue liquid.
CN201410649183.XA 2014-11-14 2014-11-14 Isothiazolinone water treatment bactericide and preparation method thereof Pending CN104397018A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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CN201410649183.XA CN104397018A (en) 2014-11-14 2014-11-14 Isothiazolinone water treatment bactericide and preparation method thereof

Publications (1)

Publication Number Publication Date
CN104397018A true CN104397018A (en) 2015-03-11

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108308194A (en) * 2018-04-20 2018-07-24 东莞市顶盛环保科技有限公司 A kind of composite multifunction fungicide
CN115968896A (en) * 2022-12-27 2023-04-18 西安吉利电子新材料股份有限公司 Isothiazolinone bactericide applicable to water treatment system and preparation method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101530100A (en) * 2009-04-27 2009-09-16 陕西上格之路生物科学有限公司 Isothiazolone agricultural bactericide
CN101564035A (en) * 2009-06-10 2009-10-28 郇恒飞 Mould removing bactericide
CN102177913A (en) * 2011-03-14 2011-09-14 山东瑞爱特环保科技有限公司 Sterilizing stripper dedicated for oilfield injection water and preparation method thereof
CN102342275A (en) * 2010-12-13 2012-02-08 新疆德蓝股份有限公司 Novel bactericide for oil fields
CN103087002A (en) * 2011-11-03 2013-05-08 Dhc有限公司 Preparation method of isothiazolinone
CN103190439A (en) * 2013-04-03 2013-07-10 天津大学 Compound biocide for circulating cooling water and preparation method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101530100A (en) * 2009-04-27 2009-09-16 陕西上格之路生物科学有限公司 Isothiazolone agricultural bactericide
CN101564035A (en) * 2009-06-10 2009-10-28 郇恒飞 Mould removing bactericide
CN102342275A (en) * 2010-12-13 2012-02-08 新疆德蓝股份有限公司 Novel bactericide for oil fields
CN102177913A (en) * 2011-03-14 2011-09-14 山东瑞爱特环保科技有限公司 Sterilizing stripper dedicated for oilfield injection water and preparation method thereof
CN103087002A (en) * 2011-11-03 2013-05-08 Dhc有限公司 Preparation method of isothiazolinone
CN103190439A (en) * 2013-04-03 2013-07-10 天津大学 Compound biocide for circulating cooling water and preparation method thereof

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Title
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李战等: "化学杀菌剂处理油田回注水的应用研究", 《黑龙江环境通报》 *
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108308194A (en) * 2018-04-20 2018-07-24 东莞市顶盛环保科技有限公司 A kind of composite multifunction fungicide
CN115968896A (en) * 2022-12-27 2023-04-18 西安吉利电子新材料股份有限公司 Isothiazolinone bactericide applicable to water treatment system and preparation method thereof

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Application publication date: 20150311

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