CN106633177A - 废旧硅橡胶生产有机硅单体的方法 - Google Patents

废旧硅橡胶生产有机硅单体的方法 Download PDF

Info

Publication number
CN106633177A
CN106633177A CN201610977992.2A CN201610977992A CN106633177A CN 106633177 A CN106633177 A CN 106633177A CN 201610977992 A CN201610977992 A CN 201610977992A CN 106633177 A CN106633177 A CN 106633177A
Authority
CN
China
Prior art keywords
silicone rubber
formamide
catalyst
waste silicone
monomer
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
CN201610977992.2A
Other languages
English (en)
Inventor
赵剑
王明
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.)
Yangzhou Hongyuan Chemical Industry New Material Co Ltd
Original Assignee
Yangzhou Hongyuan Chemical Industry New Material 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 Yangzhou Hongyuan Chemical Industry New Material Co Ltd filed Critical Yangzhou Hongyuan Chemical Industry New Material Co Ltd
Priority to CN201610977992.2A priority Critical patent/CN106633177A/zh
Publication of CN106633177A publication Critical patent/CN106633177A/zh
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J11/00Recovery or working-up of waste materials
    • C08J11/04Recovery or working-up of waste materials of polymers
    • C08J11/10Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
    • C08J11/18Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material
    • C08J11/28Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material by treatment with organic compounds containing nitrogen, sulfur or phosphorus
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J11/00Recovery or working-up of waste materials
    • C08J11/04Recovery or working-up of waste materials of polymers
    • C08J11/10Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
    • C08J11/16Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with inorganic material
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2383/00Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
    • C08J2383/04Polysiloxanes
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/62Plastics recycling; Rubber recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Silicon Polymers (AREA)

Abstract

本发明涉及一种废旧硅橡胶生产有机硅单体的方法。在裂解过程中加入甲酰胺为催化剂。本发明反应时间较短,2个小时内就可完成,本发明在原来催化剂的基础上减少了磺酸的用量、增加了硫酸的用量、并且新增加入甲酰胺,甲酰胺作用增加单体的溶解性,使单体不产生胶黏,此反应时间比传统反应节约反应时间40%以上,同时减少了磺酸的用量,总的催化剂成本也也降低,本发明由于催化剂改变和反应时间减少,生产的成本得到了极大的降低。

Description

废旧硅橡胶生产有机硅单体的方法
技术领域
本发明涉及一种废旧硅橡胶生产有机硅单体的方法,属于有机硅生产技术领域。
背景技术
我国废旧硅橡胶生产有机硅单体催化剂一般使用硫酸和磺酸作为催化剂,反应时间较长,消耗的能源、设备的损耗较大,我公司此方法在原来的工艺基础上进行改进,实现以较少反应时间,并且不降低废旧硅橡的利用率。
发明内容
为此本发明采用的技术方案是:本发明在裂解过程中加入甲酰胺为催化剂。
还包括有磺酸、硫酸为催化剂。
所述各催化剂的用量(以废旧硅橡胶的重量计):磺酸1-2%、硫酸2-4%、甲酰胺0.2-0.8%。
所述甲酰胺的用量为0.4%。
将一定量的废旧硅橡胶加入反应釜内,加入磺酸、硫酸、甲酰胺作为催化剂,升温至250-280℃,真空度保持-0.06- -0.08MPa左右,直至硅橡胶完全裂解。
本发明的优点是:本发明反应时间较短,2个小时内就可完成,本发明在原来催化剂的基础上减少了磺酸的用量、增加了硫酸的用量、并且新增加入甲酰胺,甲酰胺作用增加单体的溶解性,使单体不产生胶黏,此反应时间比传统反应节约反应时间40%以上,同时减少了磺酸的用量,总的催化剂成本也也降低,本发明由于催化剂改变和反应时间减少,生产的成本得到了极大的降低。
具体实施方式
实施例一:
本发明在裂解过程中加入甲酰胺为催化剂。
还包括有磺酸、硫酸为催化剂。
所述各催化剂的用量(以废旧硅橡胶的重量计):磺酸1.3%、硫酸3.2%、甲酰胺0.4%。
将一定量的废旧硅橡胶加入反应釜内,加入磺酸、硫酸、甲酰胺作为催化剂,升温至270℃,真空度保持-0.07MPa左右,直至硅橡胶完全裂解。
实施例二:
本发明在裂解过程中加入甲酰胺为催化剂。
还包括有磺酸、硫酸为催化剂。
所述各催化剂的用量(以废旧硅橡胶的重量计):磺酸1.8%、硫酸4%、甲酰胺0.7%。
将一定量的废旧硅橡胶加入反应釜内,加入磺酸、硫酸、甲酰胺作为催化剂,升温至250℃,真空度保持-0.08MPa左右,直至硅橡胶完全裂解。
实施例三:
本发明在裂解过程中加入甲酰胺为催化剂。
还包括有磺酸、硫酸为催化剂。
所述各催化剂的用量(以废旧硅橡胶的重量计):磺酸1%、硫酸2.6%、甲酰胺0.2%。
将一定量的废旧硅橡胶加入反应釜内,加入磺酸、硫酸、甲酰胺作为催化剂,升温至280℃,真空度保持-0.06MPa左右,直至硅橡胶完全裂解。

Claims (5)

1.废旧硅橡胶生产有机硅单体的方法,其特征在于,在裂解过程中加入甲酰胺为催化剂。
2.根据权利要求1所述的废旧硅橡胶生产有机硅单体的方法,其特征在于,还包括有磺酸、硫酸为催化剂。
3.根据权利要求2所述的废旧硅橡胶生产有机硅单体的方法,其特征在于,所述各催化剂的用量(以废旧硅橡胶的重量计):磺酸1-2%、硫酸2-4%、甲酰胺0.2-0.8%。
4.根据权利要求3所述的废旧硅橡胶生产有机硅单体的方法,其特征在于,所述甲酰胺的用量为0.4%。
5.根据权利要求2或3或4所述的废旧硅橡胶生产有机硅单体的方法,其特征在于,将一定量的废旧硅橡胶加入反应釜内,加入磺酸、硫酸、甲酰胺作为催化剂,升温至250-280℃,真空度保持-0.06- -0.08MPa,直至硅橡胶完全裂解。
CN201610977992.2A 2016-11-08 2016-11-08 废旧硅橡胶生产有机硅单体的方法 Pending CN106633177A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610977992.2A CN106633177A (zh) 2016-11-08 2016-11-08 废旧硅橡胶生产有机硅单体的方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610977992.2A CN106633177A (zh) 2016-11-08 2016-11-08 废旧硅橡胶生产有机硅单体的方法

Publications (1)

Publication Number Publication Date
CN106633177A true CN106633177A (zh) 2017-05-10

Family

ID=58805787

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610977992.2A Pending CN106633177A (zh) 2016-11-08 2016-11-08 废旧硅橡胶生产有机硅单体的方法

Country Status (1)

Country Link
CN (1) CN106633177A (zh)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103936993A (zh) * 2014-03-26 2014-07-23 东至绿洲环保化工有限公司 一种利用硫酸作为催化剂制备甲基硅油的方法
CN103936784A (zh) * 2014-03-26 2014-07-23 东至绿洲环保化工有限公司 酸法内解有机硅废料制备二甲基环硅氧烷混合体工艺

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103936993A (zh) * 2014-03-26 2014-07-23 东至绿洲环保化工有限公司 一种利用硫酸作为催化剂制备甲基硅油的方法
CN103936784A (zh) * 2014-03-26 2014-07-23 东至绿洲环保化工有限公司 酸法内解有机硅废料制备二甲基环硅氧烷混合体工艺

Similar Documents

Publication Publication Date Title
AR081827A1 (es) Proceso para producir celulas capaces de convertir arabinosa
CN106188444A (zh) 一种功能化氧化石墨烯/酚醛树脂及其制备方法
CN106400206A (zh) 一种木质素基碳纤维的制备方法
CN106633177A (zh) 废旧硅橡胶生产有机硅单体的方法
CN102898603A (zh) 一种聚乙二醇改性酚醛树脂及其制备工艺
CN104441136B (zh) 脲醛树脂浸渍和电子束辐射固化制作木塑复合材料的工艺
CN105669928B (zh) 一种快速硬化呋喃树脂的不脱水生产方法
CN102659983A (zh) 一种石油树脂生产用无水三氯化铝催化剂的络合方法
CN103865328A (zh) 一种胶质油配方及其制备工艺和应用
CN105968832A (zh) 增粘树脂乳液的制备方法
CN102863634B (zh) 一种pbo纤维/苯并噁嗪复合材料的制备方法
CN204550055U (zh) 一种生产不溶性硫磺使用的烘房
CN101343256B (zh) 橡胶促进剂cbs的制备方法
CN103467682A (zh) 沉淀法循环生产热塑性硫酸钡酚醛树脂的工艺
CN114082427A (zh) 一种用于硫酸盐木质素微波催化解聚的三维多孔网状炭基纳米花催化剂的制备方法
CN102330357A (zh) 抗酚醛黄变和紫外线照射黄变的帐篷面料的生产工艺
CN110917881A (zh) 一种双极膜的制备方法
CN108793727A (zh) 一种玻璃成型模具脱模剂
Kim et al. Optimization of the organosolv pretreatment of yellow poplar for bioethanol production by response surface methodology
CN203487029U (zh) 一种伸缩式强化篮
CN107384167A (zh) 一种太阳能吸热涂料
CN102504211A (zh) 热固性酰亚胺树脂改性硅氮烷及其复合材料的制备方法
이동구 et al. Ooptimization of Energy Recovery in Hydrothermal Liquefaction of Chlorella sp.
Song et al. Preparation of chitosan with sodium hydroxide according to condition of temperatures
CN104785290A (zh) 一种用于烯烃生产的催化剂的制备方法

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
CB02 Change of applicant information
CB02 Change of applicant information

Address after: 225200 Hongyuan Road, Shao Industry Park, Jiangdu District, Jiangsu, Yangzhou

Applicant after: Yangzhou Hongyuan new material Limited by Share Ltd

Address before: 225200 Hongyuan Road, Shao Industry Park, Jiangdu District, Jiangsu, Yangzhou

Applicant before: Yangzhou Hongyuan Chemical Industry New Material Co., Ltd.

RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20170510