WO2009026772A1 - Self-clearing reactor for preparing formic acid - Google Patents
Self-clearing reactor for preparing formic acid Download PDFInfo
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- WO2009026772A1 WO2009026772A1 PCT/CN2007/071085 CN2007071085W WO2009026772A1 WO 2009026772 A1 WO2009026772 A1 WO 2009026772A1 CN 2007071085 W CN2007071085 W CN 2007071085W WO 2009026772 A1 WO2009026772 A1 WO 2009026772A1
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- reactor
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- blade
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
- B01J19/0066—Stirrers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/11—Stirrers characterised by the configuration of the stirrers
- B01F27/114—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections
- B01F27/1144—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections with a plurality of blades following a helical path on a shaft or a blade support
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
- B01F27/70—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms
- B01F27/701—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms comprising two or more shafts, e.g. in consecutive mixing chambers
- B01F27/702—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms comprising two or more shafts, e.g. in consecutive mixing chambers with intermeshing paddles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
- B01J19/20—Stationary reactors having moving elements inside in the form of helices, e.g. screw reactors
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/02—Preparation of carboxylic acids or their salts, halides or anhydrides from salts of carboxylic acids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
- B01J2219/00087—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor
- B01J2219/00094—Jackets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00761—Details of the reactor
- B01J2219/00763—Baffles
- B01J2219/00779—Baffles attached to the stirring means
Definitions
- the present invention relates to a reactor, and more particularly to a reactor for preparing formic acid.
- the traditional domestic reactor for the preparation of formic acid is a common uniaxial ⁇ type reactor, which is a jacketed structure formed by the inner and outer shells.
- the raw material for the production of formic acid is solid sodium, while the phosphoric acid or polyphosphoric acid
- the viscosity is relatively large.
- the uniaxial stirring causes the material to form a swirl in the reactor. This method results in uneven material mixing, and the material easily adheres to the stirring shaft during the reaction.
- the mixing arm and the inner casing wall resulting in low material utilization, high energy consumption, and thus affecting product quality;
- the reaction is an exothermic reaction, generally requires the input of cooling medium in the jacket to take away the heat of reaction, but because The material is not uniformly mixed therein, resulting in uneven temperature in the reaction system, and some side reactions of superheating are many, which affects the yield and quality of formic acid.
- the object of the present invention is to overcome the above-mentioned shortcomings of the prior art and to provide a reactor capable of uniformly mixing materials and avoiding adhesion of materials in the reactor.
- a self-cleaning reactor for preparing formic acid comprising a jacketed casing formed by an inner and outer casing, a transmission mechanism, and a stirring mechanism, and an inlet and a liquid outlet are provided on the outer casing, and an inner casing is provided
- the body is provided with an inlet and a discharge port, wherein the inner casing is a double-cylinder structure, and the agitating mechanism comprises two mandrels symmetrically mounted at the axial center positions of the two cylinders, and a plurality of lobes fixed in a fan shape on the mandrel, and leaf teeth fixed on the surface of each louver, the lobes being spirally distributed along the axial direction of the mandrel, on the two mandrels
- the leaf plates are misaligned and interlaced, and the two mandrels are connected to the transmission mechanism outside the cylinder.
- the leaf plates on each mandrel are arranged in a straight line in the axial direction, and a better solution is on the mandrel.
- Two sets of louvers arranged in a straight line in the axial direction are fixedly fixed.
- the upper surface of the fan-shaped blade is matched with the inner circular surface of the cylinder, that is, in addition to ensuring that the fan-shaped blade can rotate freely in the cylinder, the upper surface of the fan-shaped blade and the cylinder are required
- the interval between the inner circular arc faces is small, so that the material cannot adhere to the inner circular arc surface of the cylinder.
- an air outlet is further provided at the upper end of the cylinder.
- the working principle of the utility model is as follows: The material enters the reactor from the feeding port, and the two mandrels rotate under the driving mechanism, and the material rotates forward along the spiral groove formed by the blade and the blade teeth, even if the material Adhering to the inner wall of the barrel, when the leaf tooth is rotated to this position next time, it can be scraped off, and the materials adhered between the leaf sheets are scraped off by the corresponding leaf plates on the other mandrel. The material is renewed and thoroughly mixed during the rotary operation. After the reaction is completed, the reactants are discharged from the discharge port; the water inlet and the water outlet on the outer casing can be condensed to cool the cylinder.
- the utility model is designed with a double-axis spiral structure composed of a double mandrel, a leaf plate and a blade tooth, and the leaf plate misalignment arrangement on the two shafts, the running turns are mutually staggered, because the gap between the blade tooth and the cylinder body is small, The material adhering to the inner wall of the cylinder can be continuously scraped into the spiral conveying groove and mixed thoroughly, and the material between the shaft and the shaft located between the blades is scraped off by the blade on the other mandrel.
- the spiral conveying trough is fully mixed, which solves the problem that the material in the prior art is easy to adhere.
- the spiral mixing conveying mode makes the material continuously roll during the running process, and the mixing is more uniform, so that the reaction proceeds smoothly, and then the reaction proceeds smoothly.
- the cooling medium introduced in the jacket can also carry out the heat generated by the reaction of the material in the cylinder well and uniformly, so that the yield of formic acid can be improved.
- Figure 1 is a front cross-sectional view of the utility model
- Figure 2 is a side cross-sectional view of the present invention.
- Example 1 A self-cleaning reactor for preparing formic acid, comprising a jacketed casing and a transmission mechanism 3 formed by an inner casing 1 and an outer casing 2, and a stirring mechanism, which is disposed on the outer casing 2 There are inlet and outlet ports 4 and 5, The inner casing 1 is provided with inlet and outlet ports 6 and 7, wherein the inner casing 1 is a combined double cylinder structure, and the stirring mechanism comprises symmetrically installed in the two cylinders 1 Two mandrels 8 at the axial center position, and a plurality of blades 9 having a fan-shaped longitudinal section fixed to the mandrel 8, and leaf teeth 10 fixed to the upper surface of each of the blade plates 9, the blade teeth 10 The axial direction of the mandrel 8 is distributed in a spiral shape on the two core shafts 8
- the leaf plates 9 are dislocated and interlaced, that is, at the same time that the two mandrels 8 are freely rotatable, the corresponding louvers 9 on the two mandrel 8 are interdigitated and maintain a small gap, and the two mandrels 8 are
- the transmission mechanism 3 outside the cylinder 1 is connected, wherein two sets of louvers 9 arranged in a line in the axial direction are symmetrically fixed on each of the mandrels 8, and the upper surface of the scallops 9 is
- the inner arc faces of the body 1 are matched, the gap is small and the blade can be freely rotated therein, and an air outlet 11 is further provided at the upper end of the cylinder 1.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The present invention discloses a reactor for preparing formic acid, which comprises a jacket formed by inner shell (1) and outer shell (2), driving mechanism (3) and agitating mechanism. The outer shell (2) has liquid inlet (4) and liquid outlet (5) on it, and the inner shell has feed inlet (6) and feed outlet (7) on it. The inner shell (1) above is an involutive double-barrel structure, and the agitation mechanism (3) above comprises two shafts (8) located at the axes of the two barrels, several vanes secured on the shafts whose vertical section are sectorial, and blade teeth (10) secured on the upper face of each vane. These blade teeth are distributed spirally along the shafts. The vanes on the two shafts are dislocated and intermeshed, and the two shafts are connected with driving mechanism (3). This reactor can mix materials homogeneously and prevent materials from adhering to the reactor.
Description
说明书 用于制备甲酸的自净式反应器 Self-cleaning reactor for the preparation of formic acid
技术领域 Technical field
[1] 本实用新型涉及一种反应器， 尤其是涉及一种用于制备甲酸的反应器。 [1] The present invention relates to a reactor, and more particularly to a reactor for preparing formic acid.
背景技术 Background technique
[2] 国内传统的制备甲酸的反应器为一般普通的单轴式耙式反应器， 为内、 外壳体 形成的夹套式结构， 由于生产甲酸的原料甲酸钠为固体， 而磷酸或聚磷酸的粘 度较大， 在进行混合的吋候， 这种单轴式搅拌使物料在反应器内形成的是漩涡 状， 这种方式导致物料混合不均匀， 而且在反应过程中物料易粘附在搅拌轴、 搅拌臂和内壳壁上， 致使物料利用率低， 能耗高， 进而影响产品质量； 再者， 该反应是放热反应， 一般需要在夹套内输入冷却介质带走反应热量， 但是由于 物料在其中混合不均匀， 致使反应体系内温度不均匀， 过热的部分副反应多， 影响甲酸的收率和质量。 [2] The traditional domestic reactor for the preparation of formic acid is a common uniaxial 耙 type reactor, which is a jacketed structure formed by the inner and outer shells. The raw material for the production of formic acid is solid sodium, while the phosphoric acid or polyphosphoric acid The viscosity is relatively large. When mixing, the uniaxial stirring causes the material to form a swirl in the reactor. This method results in uneven material mixing, and the material easily adheres to the stirring shaft during the reaction. , the mixing arm and the inner casing wall, resulting in low material utilization, high energy consumption, and thus affecting product quality; further, the reaction is an exothermic reaction, generally requires the input of cooling medium in the jacket to take away the heat of reaction, but because The material is not uniformly mixed therein, resulting in uneven temperature in the reaction system, and some side reactions of superheating are many, which affects the yield and quality of formic acid.
对发明的公开 Disclosure of invention
技术问题 technical problem
[3] 本实用新型的目的在于克服上述现有技术的缺点而提供一种能够将物料混合均 匀、 避免物料在反应器内粘附的反应器。 [3] The object of the present invention is to overcome the above-mentioned shortcomings of the prior art and to provide a reactor capable of uniformly mixing materials and avoiding adhesion of materials in the reactor.
技术解决方案 Technical solution
[4] 本实用新型的目的是这样实现的： [4] The purpose of the utility model is achieved as follows:
[5] 一种用于制备甲酸的自净式反应器， 包括由内、 外壳体形成的夹套式壳体和传 动机构、 搅拌机构， 在外壳体上设置有进、 出液口， 在内壳体上设置有进、 出 料口， 其中所述的内壳体是对合型双筒体结构， 所述的搅拌机构包括对称地安 装于两个筒体内轴心位置的两根芯轴， 和数个固定在芯轴上的纵断面呈扇形的 叶板， 以及固定在每个叶板上表面的叶齿组成， 这些叶齿沿芯轴的轴向方向呈 螺旋状分布， 两芯轴上的叶板错位设置并相互交错， 两根芯轴与筒体外的传动 机构相连。 [5] A self-cleaning reactor for preparing formic acid, comprising a jacketed casing formed by an inner and outer casing, a transmission mechanism, and a stirring mechanism, and an inlet and a liquid outlet are provided on the outer casing, and an inner casing is provided The body is provided with an inlet and a discharge port, wherein the inner casing is a double-cylinder structure, and the agitating mechanism comprises two mandrels symmetrically mounted at the axial center positions of the two cylinders, and a plurality of lobes fixed in a fan shape on the mandrel, and leaf teeth fixed on the surface of each louver, the lobes being spirally distributed along the axial direction of the mandrel, on the two mandrels The leaf plates are misaligned and interlaced, and the two mandrels are connected to the transmission mechanism outside the cylinder.
[6] 其中， 在每根芯轴上的叶板在轴向方向呈直线排列， 较好的方案是在芯轴上对
称地固定有两组在轴向方向呈直线排列的叶板。 [6] Among them, the leaf plates on each mandrel are arranged in a straight line in the axial direction, and a better solution is on the mandrel. Two sets of louvers arranged in a straight line in the axial direction are fixedly fixed.
[7] 其中， 所述的扇形叶板的上表面是和筒体的内圆弧面相匹配， 即除了保证扇形 叶片在筒体内能自由旋转外， 又要使扇形叶板的上表面和筒体的内圆弧面之间 的间歇较小， 使物料不能粘附在筒体的内圆弧面上。 [7] wherein, the upper surface of the fan-shaped blade is matched with the inner circular surface of the cylinder, that is, in addition to ensuring that the fan-shaped blade can rotate freely in the cylinder, the upper surface of the fan-shaped blade and the cylinder are required The interval between the inner circular arc faces is small, so that the material cannot adhere to the inner circular arc surface of the cylinder.
[8] 作为本实用新型的进一步改进， 在筒体的上端还设置有出气口。 [8] As a further improvement of the present invention, an air outlet is further provided at the upper end of the cylinder.
[9] 本实用新型的工作原理如下： 物料从进料口进入反应器， 两根芯轴在传动机构 的带动下旋转， 物料沿叶片和叶齿构成的螺旋槽内旋转向前行， 即便物料在筒 体内壁粘附， 当叶齿下次旋转到此位置吋， 即可将其刮掉， 而叶板之间粘附的 物料则互由另一根芯轴上对应的叶板刮掉， 物料在旋转运行中得以更新和充分 混合， 反应完成后， 反应物从出料口出料； 在外壳上的进水口和出水口可以通 入冷凝水对筒体进行冷却。 [9] The working principle of the utility model is as follows: The material enters the reactor from the feeding port, and the two mandrels rotate under the driving mechanism, and the material rotates forward along the spiral groove formed by the blade and the blade teeth, even if the material Adhering to the inner wall of the barrel, when the leaf tooth is rotated to this position next time, it can be scraped off, and the materials adhered between the leaf sheets are scraped off by the corresponding leaf plates on the other mandrel. The material is renewed and thoroughly mixed during the rotary operation. After the reaction is completed, the reactants are discharged from the discharge port; the water inlet and the water outlet on the outer casing can be condensed to cool the cylinder.
有益效果 Beneficial effect
[10] 本实用新型相比于现有技术有如下优点： [10] The utility model has the following advantages compared with the prior art:
[11] 因为本实用新型设计了由双芯轴、 叶板、 叶齿构成的双轴螺旋结构， 加之两轴 上的叶板错位设置， 运行吋相互交错， 由于叶齿与筒体间隙小， 可不断将筒体 内壁上粘附的物料刮下进入螺旋输送槽中充分混合， 而轴与轴之间的、 位于叶 板之间的物料又被另一根芯轴上的叶板刮掉进入螺旋输送槽中充分混合， 解决 了原有技术中物料容易粘附的问题， 同吋， 这种螺旋混合输送方式， 使物料在 运行过程中不断翻滚， 混合得更加均匀， 使得反应顺利进行， 再者， 在夹套内 通入的冷却介质， 也能很好、 很均匀地将筒体内物料反应所产生的热量带走， 使甲酸的收率得以提高。 [11] Because the utility model is designed with a double-axis spiral structure composed of a double mandrel, a leaf plate and a blade tooth, and the leaf plate misalignment arrangement on the two shafts, the running turns are mutually staggered, because the gap between the blade tooth and the cylinder body is small, The material adhering to the inner wall of the cylinder can be continuously scraped into the spiral conveying groove and mixed thoroughly, and the material between the shaft and the shaft located between the blades is scraped off by the blade on the other mandrel. The spiral conveying trough is fully mixed, which solves the problem that the material in the prior art is easy to adhere. At the same time, the spiral mixing conveying mode makes the material continuously roll during the running process, and the mixing is more uniform, so that the reaction proceeds smoothly, and then the reaction proceeds smoothly. The cooling medium introduced in the jacket can also carry out the heat generated by the reaction of the material in the cylinder well and uniformly, so that the yield of formic acid can be improved.
附图说明 DRAWINGS
[12] 图 1是本实用新型的主视剖视图； Figure 1 is a front cross-sectional view of the utility model;
[13] 图 2是本实用新型的侧视剖视图。 Figure 2 is a side cross-sectional view of the present invention.
本发明的实施方式 Embodiments of the invention
[14] 下面结合附图和实施例对本实用新型作进一步详细说明： [14] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments:
[15] 实施例 1 : 一种用于制备甲酸的自净式反应器， 包括由内壳体 1、 外壳体 2形成 的夹套式壳体和传动机构 3、 搅拌机构， 在外壳体 2上设置有进、 出液口 4和 5，
在内壳体 1上设置有进、 出料口 6和 7， 其中所述的内壳体 1是对合型双筒体结构 ， 所述的搅拌机构包括对称地安装于两个筒体 1内轴心位置的两根芯轴 8， 和数 个固定在芯轴 8上的纵断面呈扇形的叶板 9， 以及固定在每个叶板 9上表面的叶齿 10组成， 这些叶齿 10沿芯轴 8的轴向方向呈螺旋状分布， 两芯轴 8上 [15] Example 1: A self-cleaning reactor for preparing formic acid, comprising a jacketed casing and a transmission mechanism 3 formed by an inner casing 1 and an outer casing 2, and a stirring mechanism, which is disposed on the outer casing 2 There are inlet and outlet ports 4 and 5, The inner casing 1 is provided with inlet and outlet ports 6 and 7, wherein the inner casing 1 is a combined double cylinder structure, and the stirring mechanism comprises symmetrically installed in the two cylinders 1 Two mandrels 8 at the axial center position, and a plurality of blades 9 having a fan-shaped longitudinal section fixed to the mandrel 8, and leaf teeth 10 fixed to the upper surface of each of the blade plates 9, the blade teeth 10 The axial direction of the mandrel 8 is distributed in a spiral shape on the two core shafts 8
的叶板 9错位设置并相互交错， 即在保证两根芯轴 8自由旋转的同吋， 两芯轴 8上 对应的叶板 9之间犬牙交错并保持较小的间隙， 两根芯轴 8与筒体 1外的传动机构 3相连， 其中， 在每根芯轴 8上对称地固定有两组在轴向方向呈直线排列的叶板 9 ， 所述的扇形叶板 9的上表面是和筒体 1的内圆弧面相匹配， 间隙较小且能保证 叶板在其内可以自由转动， 在筒体 1的上端还设置有出气口 11。
The leaf plates 9 are dislocated and interlaced, that is, at the same time that the two mandrels 8 are freely rotatable, the corresponding louvers 9 on the two mandrel 8 are interdigitated and maintain a small gap, and the two mandrels 8 are The transmission mechanism 3 outside the cylinder 1 is connected, wherein two sets of louvers 9 arranged in a line in the axial direction are symmetrically fixed on each of the mandrels 8, and the upper surface of the scallops 9 is The inner arc faces of the body 1 are matched, the gap is small and the blade can be freely rotated therein, and an air outlet 11 is further provided at the upper end of the cylinder 1.
Claims
[1] 1、 一种用于制备甲酸的自净式反应器， 包括由内、 外壳体形成的夹套式壳 体和传动机构、 搅拌机构， 在外壳体上设置有进、 出液口， 在内壳体上设 置有进、 出料口， 其特征在于所述的内壳体是对合型双筒体结构， 所述的 搅拌机构包括对称地安装于两个筒体内轴心位置的两根芯轴， 和数个固定 在芯轴上的纵断面呈扇形的叶板， 以及固定在每个叶板上表面的叶齿组成 ， 这些叶齿沿芯轴的轴向方向呈螺旋状分布， 两芯轴上的叶板错位设置并 相互交错， 两根芯轴与筒体外的传动机构相连。 [1] 1. A self-cleaning reactor for preparing formic acid, comprising a jacketed casing formed by an inner and outer casing, a transmission mechanism and a stirring mechanism, and an inlet and a liquid outlet are arranged on the outer casing, The inner casing is provided with an inlet and outlet port, wherein the inner casing is a double-tubular structure, and the agitating mechanism comprises two shafts symmetrically mounted on the axial center of the two cylinders. a mandrel, and a plurality of blades having a fan-shaped longitudinal section fixed on the mandrel, and a blade tooth fixed on a surface of each of the blade surfaces, the blade teeth being spirally distributed along the axial direction of the mandrel, two The louvers on the mandrel are misaligned and interlaced, and the two mandrels are connected to the transmission mechanism outside the cylinder.
[2] 2、 根据权利要求 1所述的反应器， 其特征在于在每根芯轴上的叶板在轴向 方向呈直线排列。 [2] 2. The reactor according to claim 1, wherein the louvers on each of the mandrels are arranged in a line in the axial direction.
[3] 3、 根据权利要求 2所述的反应器， 其特征在于在芯轴上对称地固定有两组 在轴向方向呈直线排列的叶板。 [3] 3. The reactor according to claim 2, characterized in that two sets of louvers arranged in a line in the axial direction are symmetrically fixed on the mandrel.
[4] 4、 根据权利要求 1所述的反应器， 其特征在于所述的扇形叶板的上表面是 和筒体的内圆弧面相匹配。 [4] 4. The reactor according to claim 1, characterized in that the upper surface of the sector-shaped blade is matched with the inner circular surface of the cylinder.
[5] 5、 根据权利要求 1所述的反应器， 其特征在于在筒体的上端还设置有出气 [5] 5. The reactor according to claim 1, wherein an outlet is further provided at an upper end of the cylinder.
Π。
Hey.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200807800U CN201105221Y (en) | 2007-08-24 | 2007-08-24 | Self-cleaning type reactor for producing formic acid |
| CN200720080780.0 | 2007-08-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2009026772A1 true WO2009026772A1 (en) | 2009-03-05 |
Family
ID=39957010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2007/071085 WO2009026772A1 (en) | 2007-08-24 | 2007-11-17 | Self-clearing reactor for preparing formic acid |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN201105221Y (en) |
| WO (1) | WO2009026772A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105080380A (en) * | 2015-08-18 | 2015-11-25 | 安徽兴林机械集团有限公司 | Reinforced stirring blade device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101985096B (en) * | 2010-05-13 | 2012-07-11 | 中国石油天然气集团公司 | Self-cleaning polymerization reactor |
| CN104596294B (en) * | 2015-02-15 | 2016-06-01 | 江西铜业股份有限公司 | A kind of Pt Pd concentrate calciner |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2033333U (en) * | 1988-08-03 | 1989-03-01 | 上海煤炭机械厂 | Screw-continuum mixer with double shaft |
| US5669710A (en) * | 1994-12-05 | 1997-09-23 | Bayer Aktiengesellschaft | Completely self-cleaning mixer/reactor |
| CN1792406A (en) * | 2005-11-25 | 2006-06-28 | 四川大学 | Equipment for preparing high pure organic matter by fusion-crystallization method |
-
2007
- 2007-08-24 CN CNU2007200807800U patent/CN201105221Y/en not_active Expired - Fee Related
- 2007-11-17 WO PCT/CN2007/071085 patent/WO2009026772A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2033333U (en) * | 1988-08-03 | 1989-03-01 | 上海煤炭机械厂 | Screw-continuum mixer with double shaft |
| US5669710A (en) * | 1994-12-05 | 1997-09-23 | Bayer Aktiengesellschaft | Completely self-cleaning mixer/reactor |
| CN1792406A (en) * | 2005-11-25 | 2006-06-28 | 四川大学 | Equipment for preparing high pure organic matter by fusion-crystallization method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105080380A (en) * | 2015-08-18 | 2015-11-25 | 安徽兴林机械集团有限公司 | Reinforced stirring blade device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN201105221Y (en) | 2008-08-27 |
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