CN102015648B - 在碱性介质中稳定的过氧丙酸组合物 - Google Patents

在碱性介质中稳定的过氧丙酸组合物 Download PDF

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CN102015648B
CN102015648B CN200980115133.0A CN200980115133A CN102015648B CN 102015648 B CN102015648 B CN 102015648B CN 200980115133 A CN200980115133 A CN 200980115133A CN 102015648 B CN102015648 B CN 102015648B
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J-L·库蒂里耶
J·凯尔韦纳
P·C·戈菲内
C·利昂
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Abstract

本发明涉及在碱性介质中是稳定的过氧丙酸的组合物,涉及使过氧丙酸稳定的方法,以及用于在碱性介质中使过氧丙酸稳定的化合物的特定组合的用途。

Description

在碱性介质中稳定的过氧丙酸组合物
本发明涉及在碱性介质中是稳定的过氧丙酸的组合物,涉及使过氧丙酸稳定的方法,以及用于在碱性介质中使过氧丙酸稳定的化合物的特定组合的用途。
众所周知,由过氧化氢和丙酸制备的过氧丙酸溶液遵从平衡定律,其方程式可以示意地用下列方式表示:
Figure BPA00001250759800011
该体系的发展动力学是相对缓慢的;它们通过强酸(如,硫酸或者磷酸)进行加速,其在适当情况下用作为催化剂。这些强酸的存在可以使该体系更快速发展直至它的平衡状态。然而,众所周知,一旦它达到了它的平衡状态,该体系慢慢地失去它包含的活性氧,这种损失表现为过酸和过氧化氢的含量的缓慢减少。为了克服这种现象,使用稳定剂如吡啶二羧酸。
过氧丙酸的一些用途需要使用过氧丙酸在碱性介质中的溶液。这涉及,例如基于过氧丙酸的组合物用于去污有机磷或者有机硫毒性产品的用途,例如用于军事领域的毒性剂或者用于农业领域的植物保护产品。
国际申请WO 01/30452描述了包含过氧丙酸、用作稳定剂的吡啶二羧酸的碱性组合物。这种组合物用于去污毒性产品的用途描述在该文献中。然而,这种组合物没有显示令人满意的稳定性。因此存在对新型的在碱性介质中更稳定的过氧丙酸组合物的需求。
本发明人因此开发了新型的基于过氧丙酸的组合物。根据本发明,该组合物包括过氧丙酸、吡啶二羧酸和羟基亚乙基二膦酸(HEDP)。
令人惊讶地,已经观察到如上面所定义的组合物是很稳定的,特别地比包含过氧丙酸、不同于HEDP的有机螯合剂的组合物更加稳定,所述不同于HEDP的有机螯合剂如通常用作H2O2稳定剂的DETMP钠(二亚乙基三胺五亚甲基膦酸的盐)或者EDTMP钠(乙二胺四亚甲基膦酸的盐)。这是因为与HEDP(实施例2)不同,这些有机螯合剂没有提供在该去污组合物的稳定方面的优点。
有利地,使用的过氧丙酸呈水溶液形式,特别地其如在催化剂(如硫酸或者硼酸)存在下,通过过氧化氢的水溶液与丙酸的反应获得的那些。这种制备方法例如描述在法国专利申请FR2462425中。与在法国专利申请No.FR2464947和FR2519634中描述的过氧丙酸的无水溶液不同,所述水溶液由简单方法得到,其不实施与有毒的或者易燃的有机溶剂(如1,2-二氯乙烷或者环己烷)共沸蒸馏的步骤。
由此,使用的过氧丙酸呈水溶液形式,其包含:作为产物的过氧丙酸,作为没有反应的反应剂的丙酸,作为没有反应的反应剂的过氧化氢水溶液,和作为催化剂的硫酸或者硼酸。
作为本发明主题的组合物因此可以包含:
-过氧丙酸
-吡啶二羧酸
-羟基亚乙基二膦酸
-丙酸
-过氧化氢水溶液,和
-硫酸和/或硼酸。
上面定义的组合物是在水中仅形成单相的溶液,这可以在水溶液中易于使用本发明主题的组合物。
举例来说,为本发明主题的组合物的羟基亚乙基二膦酸可以由Solutia公司以商标名Dequest销售的产品组成。
在一优选实施方案中,本发明主题的组合物包含(以相对于该组合物的总重量的重量表示):
-30%-40%过氧丙酸,
-0.05%-2%吡啶二羧酸,和
-0.5%-5%羟基亚乙基二膦酸。
当本发明主题的组合物被稀释在碱性水溶液中时,获得的溶液是稳定的,如在实施例3中举例说明的那样。
在本发明的一种特殊的实施方案中,上面定义的组合物呈碱性水溶液形式。因此,本发明的主题还是包含如上面所定义的组合物的碱性水溶液。
对本发明来说,术语“碱性含水溶液”用来表示任何其pH高于7的包含水的溶液。
有利地,根据本发明的碱性水溶液具有8-12,甚至更优选地8.5-9.5的pH。必要时,pH可以使用碱化试剂进行调节。因此,在本发明的一个实施方案中,碱性水溶液包含碱化剂。这种碱化剂可以选自氢氧化钠,氢氧化钾,氢氧化铵,碳酸钠或碳酸氢钠,碳酸钾或碳酸氢钾,磷酸钠,磷酸钾,磷酸铵,硅酸钠,硅酸钾,硅酸铵,硼酸钠,硼酸钾,硼酸铵,和它们的混合物。
当本发明主题的组合物被稀释在碱性水溶液中时,吡啶二羧酸、过氧丙酸和HEDP可以呈它们相应的盐形式。
该组合物的稳定性通过在酸性介质中在环境温度下储存12个月之后过氧丙酸浓度没有明显的损失,即过氧丙酸浓度不低于起始浓度的90%,进行定义。根据本发明的组合物还显示出在碱性介质中在1小时之后过氧丙酸浓度的损失低于对不根据本发明的组合物(实施例3)所测量的过氧丙酸浓度的损失。一般地,该配制剂的去污效力不低于初始活性的80%。
根据本发明的组合物优选地以相对于该溶液的总重量0.5重量%-40重量%,优选地3重量%-10重量%的过氧丙酸的浓度的水溶液进行使用。它们还能以在与水不混溶的有机溶剂中分散后的乳状液或者微乳状液形式进行使用,该有机溶剂如,例如任选氯化的脂族或者芳香族烃,例如甲苯、二甲苯、二氯甲烷和四氯乙烯。
根据本发明的水溶液还可以包含,除了本发明主题的组合物外,选自碱性缓冲液、表面活性剂的化合物和它们的混合物。
这种水溶液特别地适合为用于破坏有机磷或者有机硫化合物的去污剂。
对本发明来说,术语“碱性缓冲液”用来表示单种类型的碱性缓冲液和碱性缓冲液的混合物这两者。根据本发明的组合物包含碱性缓冲液,如碱性碳酸盐或者碱性硅酸盐,特别地碳酸钾或者碳酸钠。
对本发明来说,术语“表面活性剂”用来表示阴离子的、阳离子的、非离子的或者两性表面活性剂,其以相对于该组合物的总重量的0重量%-25重量%,优选地5重量%-20重量%的比例进行使用。
作为阳离子表面活性剂,可以提到季铵类型的那些,例如:
-十六烷基三甲基溴化铵
-十六烷基三甲基氯化铵
-十六烷基二甲基2-羟基乙基溴化铵,
-十六烷基甲基双(2-羟基乙基)溴化铵,
-苄基三甲基溴化铵,和
-十六烷基二氮杂-1,4-双环[2.2.2]辛基溴化铵。
这些表面活性剂是已知的,并且它们中的大多数可商业获得。它们可以通过由C.A.Bunton等,J.Am.Chem.Soc.,95,2912(1973)和由L.Horner等,Phosphorus and Sulfur,11,339(1981)描述的方法进行制备。
作为任选地可以使用的非离子表面活性剂,可以提及,例如:
-下式的烷氧基化脂肪醇:R-[(CH2)2O]m-[CH2CH(CH3)O]n-H
其中R是包含8-22个碳原子,优选地12-14个碳原子的烷基或者链烯基;n和m独立地表示0-50的整数,其总和n+m>1;
-下式的烷基多聚葡糖苷:R”’-[葡萄糖]n-,其中R”’是C8-C16烷基和n是1-3的整数;
-还原糖的酯、多元醇的酯和它们的乙氧基化衍生物,如,例如单硬脂酸脱水山梨糖醇酯、单硬脂酸甘油酯或者硬脂酸乙二醇酯,或者包含20个环氧乙烷的乙氧基化的单硬脂酸脱水山梨糖醇酯;
-下式的乙氧基化的烷基酰胺:
其中R如上面所定义和r和s是0-15的整数,其总和r+s>1;
-烷基吡咯烷酮,其烷基是C6-C20烷基;和它们的混合物。
优选地,该过氧丙酸以例如0.05-4.5mol/l浓度的所述水溶液形式存在。
为本发明主题的溶液还可以包含至少一种选自水溶助长剂(如脲或者枯烯磺酸钠)、增粘剂(如黄原胶)、改性玉米淀粉、羟乙基纤维素或消泡剂的组分。
本发明的主题还是用于稳定包含过氧丙酸的碱性水溶液的方法,特征在于它包含将羟基亚乙基二膦酸或者其盐的一种溶解在所述过氧丙酸溶液中的步骤。
在上面定义的方法中,碱性水溶液还可以包含吡啶二羧酸。
在上面描述的方法中,使用的过氧丙酸可以在催化剂(如硫酸或者硼酸)存在下,通过过氧化氢的水溶液与过氧丙酸的反应而获得。
本发明还涉及羟基亚乙基二膦酸和/或其盐的一种用于稳定包含过氧丙酸和任选地吡啶二羧酸的碱性水溶液的用途。
举例来说,羟基亚乙基二膦酸的盐可以是钠盐或者钾盐。当使用羟基亚乙基二膦酸钠时,它可以由Solutia公司以商标名Dequest
Figure BPA00001250759800051
销售的产品组成。
以下实施例举例说明本发明而不限制本发明的范围。在这些实施例中,百分比是按重量计的,除非另有说明。
实施例1
将1000g丙酸、15g硫酸、7.5g吡啶二羧酸和25g 60%的羟基亚乙基二膦酸(Dequest 2010,Solutia)进料到3升反应器中。在环境温度下和在搅拌下,在10分钟内加入500g 70%过氧化氢水溶液。搅拌12小时。
通过滴定碘法(与KI反应和用硫代硫酸钠滴定)定量该活性氧的量。过氧化氢水溶液使用铈(IV)硫酸盐进行定量。过氧丙酸浓度通过总活性氧和过氧化氢水溶液之间的差值进行推导。使用硫代硫酸盐定量活性氧的方法在以下手册中被提及:D.Swern Volume 1的Organic Peroxides(Wiley SBN 471839604),第1章。
获得的组合物是:
  Cl   重量%
  过氧丙酸   38.2
  过氧化氢水溶液   8.3
  丙酸   33.8
  水   17.2
  硫酸   1.0
  吡啶二羧酸   0.5
  羟基亚乙基二膦酸   1.0
实施例2(不根据本发明)
3个不根据本发明的组合物根据实施例1进行制备:
Figure BPA00001250759800052
通过去除羟基亚乙基二膦酸(组合物C2),
Figure BPA00001250759800053
通过用等量的二亚乙基三胺五甲基膦酸钠(Dequest 2066)替换羟基亚乙基二膦酸(组合物C3),
Figure BPA00001250759800061
通过用等量乙二胺四甲基膦酸钠(Dequest 2046)替换羟基亚乙基二膦酸(组合物C4)
实施例3
通过加入20%的氢氧化钾和碳酸钾水溶液(K2CO3/KOH质量比率=2/1)使在实施例1和2中制备的组合物变成碱性pH。
过氧丙酸浓度通过在实施例1中描述的方法进行测量。
  组合物   pH  在5分钟之后的过氧丙酸浓度,重量%
  C1   8.6   2.5
  C2   9.1   2.1
  C3   8.6   1.1
  C4   8.0   0.7
这些实施例说明了使用吡啶二羧酸和羟基亚乙基膦酸的组合与使用单独的吡啶二羧酸或者与其它膦酸类结合相比较的优点。

Claims (6)

1.包含组合物的水溶液,其中所述组合物包含:
(i)过氧丙酸
(ii)吡啶二羧酸,和
(iii)羟基亚乙基二膦酸
所述水溶液包含碱化剂,且具有高于7并低于或等于9.5的pH。
2.根据权利要求1的水溶液,特征在于组合物包含,以相对于该组合物的总重量的重量表示:
-30%-40%过氧丙酸,
-0.05%-2%吡啶二羧酸,
-0.5%-5%羟基亚乙基二膦酸。
3.根据权利要求1或2的水溶液,特征在于过氧丙酸以0.05-4.5mol/1浓度存在。
4.根据权利要求1或2的水溶液,其具有8.5-9.5的pH。
5.用于稳定包含过氧丙酸、吡啶二羧酸和碱化剂的并具有高于7且低于或等于9.5的pH的碱性水溶液的方法,特征在于它包含将羟基亚乙基二膦酸溶解在所述过氧丙酸溶液中的步骤。
6.羟基亚乙基二膦酸用于稳定包含过氧丙酸、吡啶二羧酸和碱化剂的并具有高于7且低于或等于9.5的pH的碱性水溶液的用途。
CN200980115133.0A 2008-04-29 2009-04-28 在碱性介质中稳定的过氧丙酸组合物 Expired - Fee Related CN102015648B (zh)

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WO1991007375A1 (en) * 1989-11-10 1991-05-30 Eka Nobel Ab Peracetic acid composition
WO1991013058A1 (en) * 1990-02-23 1991-09-05 Interox Chemicals Limited Solutions of peracids
EP0864562A2 (en) * 1997-03-15 1998-09-16 Solvay Interox Limited Stabilised peracid solutions

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FR2462425A1 (fr) 1979-08-01 1981-02-13 Air Liquide Procede de fabrication de solutions diluees stables de peracides carboxyliques aliphatiques
FR2464947A1 (fr) 1979-09-07 1981-03-20 Ugine Kuhlmann Procede de fabrication d'acides percarboxyliques
FR2519634B1 (fr) 1982-01-13 1986-09-12 Ugine Kuhlmann Perfectionnement aux procedes de synthese des acides percaboxyliques
JPS63119457A (ja) * 1986-11-05 1988-05-24 Mitsui Toatsu Chem Inc 過プロピオン酸の安定化方法
FI111459B (fi) * 2001-04-04 2003-07-31 Kemira Chemicals Oy Menetelmä stabiilin peretikkahappotuotteen valmistamiseksi

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WO1991007375A1 (en) * 1989-11-10 1991-05-30 Eka Nobel Ab Peracetic acid composition
WO1991013058A1 (en) * 1990-02-23 1991-09-05 Interox Chemicals Limited Solutions of peracids
EP0864562A2 (en) * 1997-03-15 1998-09-16 Solvay Interox Limited Stabilised peracid solutions

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