CN104312439A - Method for preparing rosin - Google Patents
Method for preparing rosin Download PDFInfo
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- CN104312439A CN104312439A CN201410549689.3A CN201410549689A CN104312439A CN 104312439 A CN104312439 A CN 104312439A CN 201410549689 A CN201410549689 A CN 201410549689A CN 104312439 A CN104312439 A CN 104312439A
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Abstract
The invention discloses a method for preparing rosin. The method comprises the following steps: firstly, adding distilled water, oxalic acid and turpentine oil into a container, then adding pine gum into the container, and introducing water steam into the container to heat so as to dissolve the pine gum; secondly, taking the pine gum out, filtering the pine gum while hot to remove insoluble impurities; thirdly, standing the pine gum for liquid separation so as to remove waste liquid at a lower layer; fourthly, performing isomerization treatment on the pine gum to obtain rough rosin; and finally, distilling the rough rosin twice, condensing for shaping, and packaging to obtain refined rosin. The rosin produced by the method disclosed by the invention is stable in quality and relatively light in color. The method is simple in process, short in production cycle and low in production cost.
Description
Technical field
The present invention relates to the processing technique field of industrial chemicals, especially relate to a kind of method producing rosin.
Background technology
Rosin take pine resin as raw material, and the nonvolatile resin obtained by different processing modes is important industrial chemicals, is widely used in the industries such as soap, papermaking, paint, rubber.Rosin is divided into gum resin, wood rosin, starex 3 kinds by its source.Gum resin also claims to loosen perfume (or spice), of light color, and acid number is large, and softening temperature is high; Wood rosin is also known as steam distilled rosin, and quality is not as gum resin, and color is dark, and acid number is little, and easily crystallization from some solvent; Starex is also known as toll oil rosin.Rosin is the solid natural resin of two kinds of transparent, fragility, is the mixture of more complicated, is made up of resinous acid (abietic acid, pimaric acid), a small amount of lipid acid, rosin acid anhydrides and neutrals etc.
Rosin can be dissolved in ethanol, ether, acetone, toluene, dithiocarbonic anhydride, ethylene dichloride, turps, sherwood oil, gasoline, oils and alkaline solution.Solubleness reduces in the oil.Be insoluble to cold water, be slightly soluble in hot water.Rosin has premium propertiess such as increasing glutinous, emulsification, softening, moistureproof, anticorrosion, insulation, and weak point is that crystallization is in a solvent inclined to greatly.The crystallinity of rosin, be due to the solubleness in some solvent of the isomer in rosin different with the moisture in rosin caused by.The quality of rosin, determines according to color, acid number, softening temperature, transparency etc.General color is more shallow, and quality better; The more, acid number is larger, and softening temperature is higher for abietic acid content.
The working method of rosin mainly contains steaming process and method of dripping.Wherein, method of dripping is placed directly in rosin in still pot, in still-process exactly, in order to reduce distillation temperature, when rosin is heated to certain temperature, appropriate clear water must be instilled, to reduce distillation temperature, and turps and steam are together steamed, be separated and obtain turps.Rosin in pot is taken out, after filtering and impurity removing, packs to obtain rosin.The method investment is little, and technical requirements is low.But temperature is wayward, poor product quality.And the rosin quality that existing steaming process is produced is stable not, and complex operation.
Summary of the invention
In view of this, the object of this invention is to provide a kind of method producing rosin, unstable to solve the rosin quality that prior art produces, and the complex operation of prior art and the deficiency that exists.
The present invention solves the problems of the technologies described above by the following technical programs:
Produce a method for rosin, comprise the steps:
(1) dissolve: first add distilled water, oxalic acid and turps in a reservoir, then rosin is added in container, and in container, pass into temperature be that the steam heating of 93-95 DEG C makes rosin dissolve;
(2) filter: the rosin after step (1) being dissolved takes out, and filters, remove insoluble impurity at maintaining the temperature at 90-94 DEG C;
(3) standing, separatory: the rosin after step (2) being processed leaves standstill 20-25min, and separatory is except sub-cloud waste liquid;
(4) rough rosin: the rosin after step (3) being processed is placed in the container being full of nitrogen or carbon dioxide, regulates the temperature in container to be 175-185 DEG C, rosin is carried out isomerization process 60-80min and obtain rough rosin;
(5) resin: first the rough rosin obtained in step (4) is carried out fore-distillation, then carry out second distillation, then by shaping for products obtained therefrom condensation rear packaging, namely obtains the rosin after refining.
In described step (1), rosin, oxalic acid, distilled water and terebinthine weight ratio are 1000:4-6:180-200:280-320.
Described step rosin, oxalic acid, distilled water and terebinthine weight ratio are 1000:5:190:300.
In described step (2), it is 92 DEG C that temperature during filtration controls.
In described step (3), the time controling left standstill is 22min.
In described step (4), the temperature of isomerization process is 180 DEG C, and the time is 70min.
In described step (5), temperature during fore-distillation controls as 140-150 DEG C, and during second distillation, temperature controls as 190-200 DEG C.
Beneficial effect of the present invention is: the rosin quality that the present invention produces is stablized, and color is more shallow, and technique is simple, and with short production cycle, production cost is low.
Embodiment
Conveniently those skilled in the art will recognize that the present invention will be further described below in conjunction with embodiment.Embodiment is only illustrating this invention, is not limitation of the invention, and the step not doing in embodiment to illustrate is all prior arts, is not described in detail at this.
Embodiment one
Produce a method for rosin, comprise the steps:
(1) dissolve: first add distilled water, oxalic acid and turps in a reservoir, then rosin is added in container, and to pass into temperature in container be that the steam heating of 93 DEG C makes rosin dissolve, rosin, oxalic acid, distilled water and terebinthine quality are respectively 1000kg, 4kg, 180kg and 280kg;
(2) filter: the rosin after step (1) being dissolved takes out, and filters, remove insoluble impurity at maintaining the temperature at 90 DEG C;
(3) standing, separatory: the rosin after step (2) being processed leaves standstill 20min, and separatory is except sub-cloud waste liquid;
(4) rough rosin: the rosin after step (3) being processed is placed in the container being full of nitrogen, regulates the temperature in container to be 175 DEG C, rosin is carried out isomerization process 60min and obtain rough rosin;
(5) resin: be first carry out fore-distillation under the condition of 140 DEG C in temperature by the rough rosin obtained in step (4), then be carry out second distillation under the condition of 190 DEG C in temperature, then by shaping for products obtained therefrom condensation rear packaging, the rosin after refining namely is obtained.
Embodiment two
Produce a method for rosin, comprise the steps:
(1) dissolve: first add distilled water, oxalic acid and turps in a reservoir, then rosin is added in container, and to pass into temperature in container be that the steam heating of 95 DEG C makes rosin dissolve, rosin, oxalic acid, distilled water and terebinthine quality are respectively 1000kg, 6kg, 200kg and 320kg;
(2) filter: the rosin after step (1) being dissolved takes out, and filters, remove insoluble impurity at maintaining the temperature at 94 DEG C;
(3) standing, separatory: the rosin after step (2) being processed leaves standstill 25min, and separatory is except sub-cloud waste liquid;
(4) rough rosin: the rosin after step (3) being processed is placed in the container being full of nitrogen, regulates the temperature in container to be 185 DEG C, rosin is carried out isomerization process 80min and obtain rough rosin;
(5) resin: be first carry out fore-distillation under the condition of 150 DEG C in temperature by the rough rosin obtained in step (4), then be carry out second distillation under the condition of 200 DEG C in temperature, then by shaping for products obtained therefrom condensation rear packaging, the rosin after refining namely is obtained.
Embodiment three
Produce a method for rosin, comprise the steps:
(1) dissolve: first add distilled water, oxalic acid and turps in a reservoir, then rosin is added in container, and to pass into temperature in container be that the steam heating of 94 DEG C makes rosin dissolve, rosin, oxalic acid, distilled water and terebinthine quality are respectively 1000kg, 5kg, 200kg and 300kg;
(2) filter: the rosin after step (1) being dissolved takes out, and filters, remove insoluble impurity at maintaining the temperature at 92 DEG C;
(3) standing, separatory: the rosin after step (2) being processed leaves standstill 22min, and separatory is except sub-cloud waste liquid;
(4) rough rosin: the rosin after step (3) being processed is placed in the container being full of nitrogen, regulates the temperature in container to be 180 DEG C, rosin is carried out isomerization process 70min and obtain rough rosin;
(5) resin: be first carry out fore-distillation under the condition of 145 DEG C in temperature by the rough rosin obtained in step (4), then be carry out second distillation under the condition of 195 DEG C in temperature, then by shaping for products obtained therefrom condensation rear packaging, the rosin after refining namely is obtained.
Claims (7)
1. produce a method for rosin, it is characterized in that, comprise the steps:
(1) dissolve: first add distilled water, oxalic acid and turps in a reservoir, then rosin is added in container, and in container, pass into temperature be that the steam heating of 93-95 DEG C makes rosin dissolve;
(2) filter: the rosin after step (1) being dissolved takes out, and filters, remove insoluble impurity at maintaining the temperature at 90-94 DEG C;
(3) standing, separatory: the rosin after step (2) being processed leaves standstill 20-25min, and separatory is except sub-cloud waste liquid;
(4) rough rosin: the rosin after step (3) being processed is placed in the container being full of nitrogen or carbon dioxide, regulates the temperature in container to be 175-185 DEG C, rosin is carried out isomerization process 60-80min and obtain rough rosin;
(5) resin: first the rough rosin obtained in step (4) is carried out fore-distillation, then carry out second distillation, then by shaping for products obtained therefrom condensation rear packaging, namely obtains the rosin after refining.
2. produce the method for rosin as claimed in claim 1, it is characterized in that, in described step (1), rosin, oxalic acid, distilled water and terebinthine weight ratio are 1000:4-6:180-200:280-320.
3. produce the method for rosin as claimed in claim 2, it is characterized in that, described step rosin, oxalic acid, distilled water and terebinthine weight ratio are 1000:5:190:300.
4. produce the method for rosin as claimed in claim 1, it is characterized in that, in described step (2), it is 92 DEG C that temperature during filtration controls.
5. produce the method for rosin as claimed in claim 1, it is characterized in that, in described step (3), the time controling left standstill is 22min.
6. produce the method for rosin as claimed in claim 1, it is characterized in that, in described step (4), the temperature of isomerization process is 180 DEG C, and the time is 70min.
7. produce the method for rosin as claimed in claim 1, it is characterized in that, in described step (5), temperature during fore-distillation controls as 140-150 DEG C, and during second distillation, temperature controls as 190-200 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410549689.3A CN104312439A (en) | 2014-10-16 | 2014-10-16 | Method for preparing rosin |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410549689.3A CN104312439A (en) | 2014-10-16 | 2014-10-16 | Method for preparing rosin |
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| CN104312439A true CN104312439A (en) | 2015-01-28 |
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| CN201410549689.3A Pending CN104312439A (en) | 2014-10-16 | 2014-10-16 | Method for preparing rosin |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106590437A (en) * | 2017-02-14 | 2017-04-26 | 临沧方源林产品有限公司 | Rosin processing method |
| CN109762469A (en) * | 2019-02-27 | 2019-05-17 | 广西创跃化工有限公司 | The preparation method of water-white rosin |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03157469A (en) * | 1989-11-15 | 1991-07-05 | Harima Chem Inc | Rosin ester with both low acid value and hydroxyl value |
| CN1065473A (en) * | 1991-11-18 | 1992-10-21 | 湖南省浏阳县林产品厂 | New technology for producing rosin |
| CN1583922A (en) * | 2004-06-10 | 2005-02-23 | 云南景谷林业股份有限公司 | Method for reducing ash and removing metal from gum resin |
| CN101649160A (en) * | 2009-09-11 | 2010-02-17 | 广西民族大学 | Method for producing refined light-color rosin by using turpentine as raw material |
| CN102311705A (en) * | 2011-07-07 | 2012-01-11 | 景东力奥林产集团林业化工有限公司 | Method for producing rosin |
| CN103087635A (en) * | 2013-01-21 | 2013-05-08 | 云南茶花林化有限公司 | Processing method of pine resin |
-
2014
- 2014-10-16 CN CN201410549689.3A patent/CN104312439A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03157469A (en) * | 1989-11-15 | 1991-07-05 | Harima Chem Inc | Rosin ester with both low acid value and hydroxyl value |
| CN1065473A (en) * | 1991-11-18 | 1992-10-21 | 湖南省浏阳县林产品厂 | New technology for producing rosin |
| CN1583922A (en) * | 2004-06-10 | 2005-02-23 | 云南景谷林业股份有限公司 | Method for reducing ash and removing metal from gum resin |
| CN101649160A (en) * | 2009-09-11 | 2010-02-17 | 广西民族大学 | Method for producing refined light-color rosin by using turpentine as raw material |
| CN102311705A (en) * | 2011-07-07 | 2012-01-11 | 景东力奥林产集团林业化工有限公司 | Method for producing rosin |
| CN103087635A (en) * | 2013-01-21 | 2013-05-08 | 云南茶花林化有限公司 | Processing method of pine resin |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106590437A (en) * | 2017-02-14 | 2017-04-26 | 临沧方源林产品有限公司 | Rosin processing method |
| CN106590437B (en) * | 2017-02-14 | 2020-08-11 | 临沧方源林产品有限公司 | Rosin processing method |
| CN109762469A (en) * | 2019-02-27 | 2019-05-17 | 广西创跃化工有限公司 | The preparation method of water-white rosin |
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