CN106010267A - Method for producing hydrogenated rosin - Google Patents
Method for producing hydrogenated rosin Download PDFInfo
- Publication number
- CN106010267A CN106010267A CN201610358216.4A CN201610358216A CN106010267A CN 106010267 A CN106010267 A CN 106010267A CN 201610358216 A CN201610358216 A CN 201610358216A CN 106010267 A CN106010267 A CN 106010267A
- Authority
- CN
- China
- Prior art keywords
- hydrogenated rosin
- rosin
- metal complex
- catalyst
- base metal
- 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
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- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 title claims abstract description 33
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 title claims abstract description 33
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 239000002262 Schiff base Substances 0.000 claims abstract description 28
- 239000003054 catalyst Substances 0.000 claims abstract description 28
- -1 Schiff base metal complex Chemical class 0.000 claims abstract description 23
- 238000003756 stirring Methods 0.000 claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 claims abstract description 15
- 235000015112 vegetable and seed oil Nutrition 0.000 claims abstract description 13
- 239000008158 vegetable oil Substances 0.000 claims abstract description 13
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 9
- 239000001257 hydrogen Substances 0.000 claims abstract description 9
- 238000002360 preparation method Methods 0.000 claims abstract description 8
- 238000004821 distillation Methods 0.000 claims abstract description 7
- RSWGJHLUYNHPMX-ONCXSQPRSA-N abietic acid Chemical compound C([C@@H]12)CC(C(C)C)=CC1=CC[C@@H]1[C@]2(C)CCC[C@@]1(C)C(O)=O RSWGJHLUYNHPMX-ONCXSQPRSA-N 0.000 claims description 20
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 18
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 12
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 12
- KDXKERNSBIXSRK-UHFFFAOYSA-N Lysine Natural products NCCCCC(N)C(O)=O KDXKERNSBIXSRK-UHFFFAOYSA-N 0.000 claims description 12
- 239000004472 Lysine Substances 0.000 claims description 12
- 239000011347 resin Substances 0.000 claims description 12
- 229920005989 resin Polymers 0.000 claims description 12
- 150000004753 Schiff bases Chemical group 0.000 claims description 6
- 239000000654 additive Substances 0.000 claims description 6
- 230000000996 additive effect Effects 0.000 claims description 6
- 239000012141 concentrate Substances 0.000 claims description 6
- 230000006837 decompression Effects 0.000 claims description 6
- 150000002431 hydrogen Chemical class 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000011259 mixed solution Substances 0.000 claims description 6
- 238000010792 warming Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 239000003921 oil Substances 0.000 claims description 3
- 235000019198 oils Nutrition 0.000 claims description 3
- 210000000582 semen Anatomy 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000002585 base Substances 0.000 claims 2
- 150000004696 coordination complex Chemical class 0.000 claims 2
- 150000002333 glycines Chemical class 0.000 claims 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 6
- 238000001914 filtration Methods 0.000 abstract description 4
- 230000003197 catalytic effect Effects 0.000 abstract description 2
- 238000005984 hydrogenation reaction Methods 0.000 abstract description 2
- 238000007259 addition reaction Methods 0.000 abstract 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 abstract 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 14
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 8
- 230000032050 esterification Effects 0.000 description 4
- 238000005886 esterification reaction Methods 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 4
- 239000011787 zinc oxide Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 125000005456 glyceride group Chemical group 0.000 description 2
- 239000003549 soybean oil Substances 0.000 description 2
- 235000012424 soybean oil Nutrition 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000000976 ink Substances 0.000 description 1
- UKVIEHSSVKSQBA-UHFFFAOYSA-N methane;palladium Chemical compound C.[Pd] UKVIEHSSVKSQBA-UHFFFAOYSA-N 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09F—NATURAL RESINS; FRENCH POLISH; DRYING-OILS; OIL DRYING AGENTS, i.e. SICCATIVES; TURPENTINE
- C09F1/00—Obtaining purification, or chemical modification of natural resins, e.g. oleo-resins
- C09F1/04—Chemical modification, e.g. esterification
-
- 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
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
- B01J31/22—Organic complexes
- B01J31/2204—Organic complexes the ligands containing oxygen or sulfur as complexing atoms
- B01J31/2208—Oxygen, e.g. acetylacetonates
- B01J31/2217—At least one oxygen and one nitrogen atom present as complexing atoms in an at least bidentate or bridging ligand
-
- 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
- B01J2231/00—Catalytic reactions performed with catalysts classified in B01J31/00
- B01J2231/60—Reduction reactions, e.g. hydrogenation
- B01J2231/64—Reductions in general of organic substrates, e.g. hydride reductions or hydrogenations
- B01J2231/641—Hydrogenation of organic substrates, i.e. H2 or H-transfer hydrogenations, e.g. Fischer-Tropsch processes
- B01J2231/645—Hydrogenation of organic substrates, i.e. H2 or H-transfer hydrogenations, e.g. Fischer-Tropsch processes of C=C or C-C triple bonds
-
- 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
- B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
- B01J2531/02—Compositional aspects of complexes used, e.g. polynuclearity
- B01J2531/0213—Complexes without C-metal linkages
-
- 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
- B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
- B01J2531/02—Compositional aspects of complexes used, e.g. polynuclearity
- B01J2531/0238—Complexes comprising multidentate ligands, i.e. more than 2 ionic or coordinative bonds from the central metal to the ligand, the latter having at least two donor atoms, e.g. N, O, S, P
- B01J2531/0258—Flexible ligands, e.g. mainly sp3-carbon framework as exemplified by the "tedicyp" ligand, i.e. cis-cis-cis-1,2,3,4-tetrakis(diphenylphosphinomethyl)cyclopentane
-
- 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
- B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
- B01J2531/10—Complexes comprising metals of Group I (IA or IB) as the central metal
- B01J2531/13—Potassium
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Fats And Perfumes (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention discloses a method for producing hydrogenated rosin, and relates to the technical field of rosin deep processing. The method comprises the following steps: conducting vacuuming and reduced pressure distillation on rosin to obtain refined rosin, wherein the vacuuming degree is 0.5 KPa to 1 KPa; adding the refined rosin into a reaction container, and then adding vegetable oil to dissolve the refined rosin; adding a Schiff base metal complex catalyst, uniformly stirring, feeding hydrogen, raising the temperature to 130-150 DEG C, and conducting addition reaction for 1-2.5 h; filtering to remove the Schiff base metal complex catalyst, so as to obtain the hydrogenated rosin. According to the method, a Schiff base metal complex is adopted as the catalyst to synthesize the hydrogenated rosin, the catalyst is simple in preparation method, low in cost and higher in rosin hydrogenation reaction catalytic efficiency, and the product obtained through reaction is light in color and high in softening point.
Description
Technical field
The present invention relates to Colophonium deep process technology field, the production method of a kind of hydrogenated rosin.
Background technology
Colophonium is the reproducible natural resources of China's abundant, because having special molecular structure and performance, and extensively should
For industries such as electronics, coating, adhesive, ink, pigment, synthetic rubber, food, intermetallic composite coating, building materials, also serve as synthesis essence
Refinement work and novel high polymer material.Along with rapid development of economy, these industries are to Colophonium and the quality of deep processed product thereof
Require also to improve constantly, and color is exactly one of Colophonium and the important quality index of deep processed product thereof, control color well, one
Determine just to control in degree Colophonium and the rank of deep processed product thereof.
At present, the preparation method of hydrogenated rosin typically chooses palladium-carbon catalyst, and this Catalyst Production is relatively costly, and urges
Change efficiency to have much room for improvement.
Summary of the invention
It is an object of the invention to provide the production method of a kind of hydrogenated rosin, the production method of this hydrogenated rosin can solve
The problem that the catalyst cost certainly used is high and catalytic efficiency is low.
In order to solve the problems referred to above, the technical solution used in the present invention is:
The production method of this hydrogenated rosin is: the decompression distillation of Colophonium evacuation is obtained resin；Wherein, suction is
0.5 kPa～1 kPa；Described resin is added in reaction vessel, is subsequently adding vegetable oil and dissolves；Add schiff base metal
Composition catalyst, stirs, and is passed through hydrogen, is warming up to 130 DEG C～150 DEG C, additive reaction 1 hour～2.5 hours；Cross
Filter, to remove Schiff base metal complex catalyst, i.e. obtains hydrogenated rosin.
In technique scheme, more specifically technical scheme it may also is that
The preparation method of Schiff base metal complex catalyst: take 0.010 mole of lysine be dissolved in 100 milliliters of potassium hydroxide and
In the mixed solution of ethanol, stirring makes lysine dissolve, and is subsequently adding formalin, stirs 40 minutes, and heating concentrates.
Further, the mass ratio of Colophonium, vegetable oil and schiff base metal complex is 1:3～5:0.005～0.01.
Further, the mass ratio of Colophonium, vegetable oil and schiff base metal complex is 1:3～5:0.005～0.01.
Further, one or more during vegetable oil is Petiolus Trachycarpi oil, soybean oil, Oleum Arachidis hypogaeae semen and Oleum sesami.
Further, the flow being passed through hydrogen is 200 ls/h～300 ls/h.
Owing to have employed technique scheme, the present invention compared with prior art has the advantages that
The present invention uses schiff base metal complex as the synthesizing hydrogenated Colophonium of catalyst, and this method for preparing catalyst is simple, becomes
This is low, and rosin catalyzed hydrogenation efficiency is higher, and products therefrom is of light color, softening point is high in reaction.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described:
Embodiment 1
The production method of the present embodiment hydrogenated rosin is: the decompression distillation of Colophonium evacuation is obtained resin；Wherein, evacuation
Degree is 0.5 kPa；Described resin is added in reaction vessel, is subsequently adding Oleum Arachidis hypogaeae semen and dissolves；Add schiff base metal to join
Mixture catalyst, stirs, and according to the flow of 200 ls/h, is passed through hydrogen, is warming up to 135 DEG C, additive reaction 1 hour；
Filtering to remove Schiff base metal complex catalyst, be subsequently adding glycerol and zinc oxide, it is sweet that esterification obtains hydrogenated rosin
Grease.
The preparation method of the present embodiment Schiff base metal complex catalyst: take 0.010 mole of lysine and be dissolved in 100 millis
Rising in the mixed solution of potassium hydroxide and ethanol, stirring makes lysine dissolve, and is subsequently adding formalin, stirs 40 minutes, add
Heat concentrates.
The mass ratio of the present embodiment Colophonium, vegetable oil and schiff base metal complex is 1:3.5:0.005.
Embodiment 2
The production method of the present embodiment hydrogenated rosin is: the decompression distillation of Colophonium evacuation is obtained resin；Wherein, evacuation
Degree is 0.8 kPa；Described resin is added in reaction vessel, is subsequently adding Oleum sesami and dissolves；Add schiff base metal to join
Mixture catalyst, stirs, and according to the flow of 230 ls/h, is passed through hydrogen, is warming up to 150 DEG C, and additive reaction 1.5 is little
Time；Filtering to remove Schiff base metal complex catalyst, be subsequently adding glycerol and zinc oxide, esterification obtains hydrogenated rosin
Glyceride.
The preparation method of the present embodiment Schiff base metal complex catalyst: take 0.010 mole of lysine and be dissolved in 100 millis
Rising in the mixed solution of potassium hydroxide and ethanol, stirring makes lysine dissolve, and is subsequently adding formalin, stirs 40 minutes, add
Heat concentrates.
The mass ratio of the present embodiment Colophonium, vegetable oil and schiff base metal complex is 1:5:0.006.
Embodiment 3
The production method of the present embodiment hydrogenated rosin is: the decompression distillation of Colophonium evacuation is obtained resin；Wherein, evacuation
Degree is 1 kPa；Described resin is added in reaction vessel, is subsequently adding soybean oil and dissolves；Add schiff base metal to coordinate
Thing catalyst, stirs, and according to the flow of 260 ls/h, is passed through hydrogen, is warming up to 140 DEG C, additive reaction 2 hours；Cross
Filter, to remove Schiff base metal complex catalyst, is subsequently adding glycerol and zinc oxide, and esterification obtains hydrogenated rosin glycerol
Ester.
The preparation method of the present embodiment Schiff base metal complex catalyst: take 0.010 mole of lysine and be dissolved in 100 millis
Rising in the mixed solution of potassium hydroxide and ethanol, stirring makes lysine dissolve, and is subsequently adding formalin, stirs 40 minutes, add
Heat concentrates.
The mass ratio of the present embodiment Colophonium, vegetable oil and schiff base metal complex is 1:4:0.008.
Embodiment 4
The production method of the present embodiment hydrogenated rosin is: the decompression distillation of Colophonium evacuation is obtained resin: wherein, evacuation
Degree is 0.6 kPa；Described resin is added in reaction vessel, is subsequently adding Petiolus Trachycarpi oil and dissolves；Add schiff base metal to join
Mixture catalyst, stirs, and according to the flow of 300 ls/h, is passed through hydrogen, is warming up to 130 DEG C, and additive reaction 2.5 is little
Time；Filtering to remove Schiff base metal complex catalyst, be subsequently adding glycerol and zinc oxide, esterification obtains hydrogenated rosin
Glyceride.
The preparation method of the present embodiment Schiff base metal complex catalyst: take 0.010 mole of lysine and be dissolved in 100 millis
Rising in the mixed solution of potassium hydroxide and ethanol, stirring makes lysine dissolve, and is subsequently adding formalin, stirs 40 minutes, add
Heat concentrates.
The mass ratio of the present embodiment Colophonium, vegetable oil and schiff base metal complex is 1:3:0.01.
Claims (6)
1. the production method of a hydrogenated rosin, it is characterised in that: the decompression distillation of Colophonium evacuation is obtained resin；Its
In, suction is 0.5 kPa～1 kPa；Described resin is added in reaction vessel, is subsequently adding vegetable oil and dissolves；
Adding Schiff base metal complex catalyst, stir, be passed through hydrogen, be warming up to 130 DEG C～150 DEG C, additive reaction 1 is little
Time～2.5 hours；Filter to remove Schiff base metal complex catalyst, i.e. obtain hydrogenated rosin.
The production method of hydrogenated rosin the most according to claim 1, it is characterised in that described catalyst is schiff base metal
Composition catalyst, its preparation method: take 0.010 mole of lysine and be dissolved in 100 milliliters of potassium hydroxide and the mixed solution of ethanol
In, stirring makes lysine dissolve, and is subsequently adding formalin, stirs 40 minutes, and heating concentrates.
The production method of hydrogenated rosin the most according to claim 1 and 2, it is characterised in that: Colophonium, vegetable oil and Schiff's base
The mass ratio of metal complex is 1:3～5:0.005～0.01.
The production method of hydrogenated rosin the most according to claim 3, it is characterised in that: Colophonium, vegetable oil and Schiff's base gold
The mass ratio of metal complex is 1:3～5:0.005～0.01.
The production method of hydrogenated rosin the most according to claim 1, it is characterised in that: described vegetable oil is Petiolus Trachycarpi oil, big
One or more in Oleum Glycines, Oleum Arachidis hypogaeae semen and Oleum sesami.
The production method of hydrogenated rosin the most according to claim 1, it is characterised in that: be passed through the flow of hydrogen be 200 liters/
Hour～300 ls/h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610358216.4A CN106010267A (en) | 2016-05-26 | 2016-05-26 | Method for producing hydrogenated rosin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610358216.4A CN106010267A (en) | 2016-05-26 | 2016-05-26 | Method for producing hydrogenated rosin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106010267A true CN106010267A (en) | 2016-10-12 |
Family
ID=57094017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610358216.4A Pending CN106010267A (en) | 2016-05-26 | 2016-05-26 | Method for producing hydrogenated rosin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106010267A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106883765A (en) * | 2017-03-01 | 2017-06-23 | 广西鼎弘树脂有限公司 | A kind of preparation method of hydrogenated rosin pentaerythritol ester |
| CN106947395A (en) * | 2017-03-01 | 2017-07-14 | 广西鼎弘树脂有限公司 | A kind of preparation method of polypale |
| CN106978085A (en) * | 2017-03-01 | 2017-07-25 | 广西鼎弘树脂有限公司 | A kind of preparation method of hydrogenated rosin glyceride |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102070988A (en) * | 2011-01-20 | 2011-05-25 | 广西梧州日成林产化工股份有限公司 | Method for producing water-white hydrogenated rosin |
-
2016
- 2016-05-26 CN CN201610358216.4A patent/CN106010267A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102070988A (en) * | 2011-01-20 | 2011-05-25 | 广西梧州日成林产化工股份有限公司 | Method for producing water-white hydrogenated rosin |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106883765A (en) * | 2017-03-01 | 2017-06-23 | 广西鼎弘树脂有限公司 | A kind of preparation method of hydrogenated rosin pentaerythritol ester |
| CN106947395A (en) * | 2017-03-01 | 2017-07-14 | 广西鼎弘树脂有限公司 | A kind of preparation method of polypale |
| CN106978085A (en) * | 2017-03-01 | 2017-07-25 | 广西鼎弘树脂有限公司 | A kind of preparation method of hydrogenated rosin glyceride |
| CN106978085B (en) * | 2017-03-01 | 2020-04-10 | 广西鼎弘树脂有限公司 | Preparation method of hydrogenated rosin glyceride |
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Application publication date: 20161012 |