CN1070163C - 一种化学合成甲醇的方法 - Google Patents

一种化学合成甲醇的方法 Download PDF

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CN1070163C
CN1070163C CN98114011A CN98114011A CN1070163C CN 1070163 C CN1070163 C CN 1070163C CN 98114011 A CN98114011 A CN 98114011A CN 98114011 A CN98114011 A CN 98114011A CN 1070163 C CN1070163 C CN 1070163C
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methanol
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CN1197054A (zh
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刘尚长
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    • 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
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Abstract

本发明涉及一种化学合成甲醇的方法,是在乙腈或乙醇一水溶液中含有有机聚吡咯单体,过渡金属化合物或络合物,经化学反应后,通入CO-H2,即可合成甲醇。本发明具有流程简单,生产周期短,无毒无害,无腐蚀,无三废,安全可靠。与传统生产甲醇工艺路线比较,本发明工艺反应条件十分温和。

Description

一种化学合成甲醇的方法
本发明涉及一种化学合成甲醇的方法,属于现行甲醇生产工艺的改进。
现行合成甲醇的工业装置非常复杂,使用的催化剂主要是由锌、铜氧化物等组成,反应条件仍然很苛刻,催化剂的制备繁难易受中毒,转化率低,反应机理不甚清楚,靠经验和猜测带着弊端生产的。急需进行重大革新。关于合成甲醇路线可参考M.T.Gi Lies,CBasedChemicals fram Hydrogth and Caroan Manoxide Noyess DataCorpation,Park Rideg,New Yark,U.S.A.1982,G.Eugexe,etal,Ep0130895,1985。
针对上述缺点,本发明提供了一种在温和条件下,采用化学方法合成甲醇的方法。
本发明可能通过以下技术措施来实现。
在乙晴或乙醇水溶液中含有0.02-0.6M的有机聚合物单体、0.02-0.6M LiClO4、0.02-0.6×10-3-10-5M过液金属化合物或络合物,以Pt、Ni或石墨为电极,在控制条件为室温-50℃,电压5-50V,电流密度2-500mA/cm2,时间2秒-6小时民政部下,通入体积比为1∶2的CO和H2,即可合成甲醇。应用气相色谱跟踪反应,以合成气计量,转化率3-5%,选择性近100%,收率3-5%。
本发明还可以通过以下技术措施来实现:
以过渡金属为掺杂系的高导聚合物分子族为催化剂,以内含匹配量为0.02-0.6MLiClO4和0.02-0.6×10-3-10-5M过渡金属化合物或络合物的乙睛或乙醇-水为溶液,以Pt、Ni或石墨为电极,在控制条件为室温-50℃,电压5-50V,电流密度2-500mA/cm2时间2秒-6小时情况下,通入体积比为1∶2的CO和H2,在常温常压下反应,即可合成甲醇。以CO和H2为计量,转化率10%,选择性近100%,收率10%。
本发明还可以通过以下技术措施来实现:
取内含0.02-0.6M的有机聚合物单体和0.02-0.6×10-3-10-5M、过渡金属化合物或络合物的乙腈或丙酮溶液,在常温常压下共沸后,在常温常压下通入体积比为1∶2的CO和H2,即可合成甲醇。以CO和H2计,转化率1-15%,选择性近10%,收率10-15%。
本发明具有流程简单,生产周期短,无毒无害,无腐蚀,无三废,安全可靠。与传统生产甲醇工艺路线比较,本发明工艺反应条件十分温和。
实施例1:在100ml反应池中内含80ml乙睛溶液,吡咯0.06M,LicLO40.06M,Ru-Ph3P(摩尔比1∶2)10-3M,以Pt为电极,电流密度25mA/cmO2,时间45分钟,电压10V,随后通入CO-H2(体积比1∶2)1-3气泡/秒,时间3小时,得甲醇0.5m/10ml溶液。
实施例2:在100ml反应池中内含80ml乙睛溶液LiClO40.1M,Co-Ru-PPh3(摩尔比1∶2)0.1×10-5M、Ru-Ph3P(摩尔比1∶2)0.1×10-6M、Ru-Ph3P-聚吡咯5mg,以Ni为电极,电流密度100mA/cm2、Ru-Ph3P-聚吡咯5mg,以Ni为电极,电流密度100mA/cm2、时间15分钟、电压20V,随后通入CO和H2(体积比1∶2)3-6气泡/S、经6小时,得甲醇0.95ml/10ml溶液。
实施例3:将\RuCl3和Ph3P(摩尔比1∶2)0.5g,溶于50ml体积比为2∶1∶1的乙睛-水-吡咯中搅拌,放置6小时-24小时,在常温常压下,通入CO-H2(体积比1∶2)2-6个气泡/秒,3小时,得甲醇08ml/1Cml溶液。

Claims (1)

1、一种化学合成甲醇的方法,其特征在于取内含0.02-0.6M的有机聚吡咯单体,0.02-10-5MRuCl3与Ph3P形成的络合物乙睛或丙酮水溶液,在常温常压下共沸后,通入体积比为1∶2的CO和H2,即可合成甲醇。
CN98114011A 1998-05-22 1998-05-22 一种化学合成甲醇的方法 Expired - Fee Related CN1070163C (zh)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0130895A1 (fr) * 1983-06-29 1985-01-09 Commissariat à l'Energie Atomique Procédé de préparation du méthanol par hydrogénation du monoxyde de carbone en présence d'un catalyseur constitué par un polymère organique conducteur tel que le polypyrrole

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0130895A1 (fr) * 1983-06-29 1985-01-09 Commissariat à l'Energie Atomique Procédé de préparation du méthanol par hydrogénation du monoxyde de carbone en présence d'un catalyseur constitué par un polymère organique conducteur tel que le polypyrrole

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
《化学学报》1991,4,9 1991.1.1 《新型PD系聚吡咯配合物的合成,结构和吸附行为的研究》高杨等 *

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