CN106433980A - Extraction method of geranium essential oil - Google Patents

Extraction method of geranium essential oil Download PDF

Info

Publication number
CN106433980A
CN106433980A CN201610734552.4A CN201610734552A CN106433980A CN 106433980 A CN106433980 A CN 106433980A CN 201610734552 A CN201610734552 A CN 201610734552A CN 106433980 A CN106433980 A CN 106433980A
Authority
CN
China
Prior art keywords
flow velocity
extraction time
extraction
time
flower
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
CN201610734552.4A
Other languages
Chinese (zh)
Inventor
曾驰
陈力
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.)
Guangxi Hao Yuan Sheng Biotechnology Co Ltd
Original Assignee
Guangxi Hao Yuan Sheng Biotechnology 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 Guangxi Hao Yuan Sheng Biotechnology Co Ltd filed Critical Guangxi Hao Yuan Sheng Biotechnology Co Ltd
Priority to CN201610734552.4A priority Critical patent/CN106433980A/en
Publication of CN106433980A publication Critical patent/CN106433980A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11BPRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
    • C11B9/00Essential oils; Perfumes
    • C11B9/02Recovery or refining of essential oils from raw materials
    • C11B9/025Recovery by solvent extraction

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Extraction Or Liquid Replacement (AREA)

Abstract

The invention provides an extraction method of geranium essential oil. The method comprises the steps that 1, a carrying agent accounting for 0.4-0.6% of geranium fresh flowers is sprayed on the geranium fresh flowers, and then the geranium fresh flowers are added into an extraction kettle for continuous recycling extraction with supercritical carbon dioxide fluid, wherein the carrying agent is prepared from, by mass, 65-70 parts of ethyl alcohol, 3-5 parts of cyclohexane and 0.6-0.8 part of dichloroethane; 2, the carbon dioxide fluid after extraction enters a separator for separation, wherein the flow rate of the carbon dioxide fluid is 10-13 kg/h, the pressure of the separator is 6-7 MPa, the temperature is 38-42 DEG C, and the time for extraction is 1.5-2.5 h; extract is discharged from the bottom of the separator, still standing is conducted, and then the geranium essential oil is obtained after oil-water separation. By means of the extraction method, the prepared geranium essential oil is high in purity, and the fragrance can be effectively reserved.

Description

A kind of extracting method of Geranium Essential
Technical field
The invention belongs to technical field of plant extraction, and in particular to a kind of extracting method of Geranium Essential.
Background technology
With the continuous development of economic society, the continuous improvement of people's living standard, to the demand of plants essential oil increasingly Greatly, quintessence oil be a class volatile, with intense flavors and abnormal smells from the patient, can be with the general name of vapor distillation oily liquids out.Essence The active composition of oil, is of wide application, and such as expelling phlegm for arresting cough, wind-dispelling stomach invigorating, anthelmintic, wrinkle resistant maintenance etc., most popular at present Hydrotherapy (SPA), its marrow is exactly natural plant essence oil.
Content of the invention
The invention provides a kind of extracting method of Geranium Essential.
The present invention provides a kind of extracting method of Geranium Essential, and step is as follows:
(1)The carrying agent for accounting for Flos Pelargonii flower weight 0.4-0.6% is sprayed in Flos Pelargonii flower, then Flos Pelargonii flower is added Entering in extraction kettle, continuous cycling extraction is carried out with supercritical carbon dioxide fluid, controls extraction kettle temperature 35-40 DEG C, extraction pressure Strong 18-22MPa, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity;The carrying agent is grouped into by each group of following mass fraction: Ethanol 65-70 part, hexamethylene 3-5 part, dichloroethanes 0.6-0.8 part;
(2)CO 2 fluid after extraction is entered separator to carry out separating, and the flow of CO 2 fluid is 10-13kg/ H, separator pressure is that 6-7MPa, temperature is 38-42 DEG C, extracts 1.5-2.5h, releases extract, standing from separator bottom Afterwards, through oil-water separation, Geranium Essential is obtained.
Preferably, step is as follows:
(1)The carrying agent for accounting for Flos Pelargonii flower weight 0.5% is sprayed in Flos Pelargonii flower, then Flos Pelargonii flower is added extraction Taking in kettle, continuous cycling extraction carried out with supercritical carbon dioxide fluid, control 38 DEG C of extraction kettle temperature, extracts pressure 20MPa, Flow velocity is 17kg/h, extraction time 3h;The carrying agent is grouped into by each group of following mass fraction:68 parts of ethanol, hexamethylene 4 Part, 0.7 part of dichloroethanes;
(2)CO 2 fluid after extraction is entered separator to carry out separating, and the flow of CO 2 fluid is 12kg/h, point Being that 6.5MPa, temperature is 42 DEG C from device pressure, 2h is extracted, extract is released from separator bottom, after standing, obtain through oil-water separation To Geranium Essential.
The Geranium Essential purity height for obtaining is extracted using the method for the present invention, fragrance can be effectively retained.
Specific embodiment
Below example facilitates a better understanding of the present invention, but does not limit the present invention.Experiment in following embodiments Method, if no special instructions, is conventional method.In following embodiments, test material used, if no special instructions, is city Sell.
Embodiment 1
The present invention provides a kind of extracting method of Geranium Essential, and step is as follows:
(1)The carrying agent for accounting for Flos Pelargonii flower weight 0.5% is sprayed in Flos Pelargonii flower, then Flos Pelargonii flower is added extraction Taking in kettle, continuous cycling extraction carried out with supercritical carbon dioxide fluid, control 38 DEG C of extraction kettle temperature, extracts pressure 20MPa, Flow velocity is 17kg/h, extraction time 3h;The carrying agent is grouped into by each group of following mass fraction:68 parts of ethanol, hexamethylene 4 Part, 0.7 part of dichloroethanes;
(2)CO 2 fluid after extraction is entered separator to carry out separating, and the flow of CO 2 fluid is 12kg/h, point Being that 6.5MPa, temperature is 42 DEG C from device pressure, 2h is extracted, extract is released from separator bottom, after standing, obtain through oil-water separation To Geranium Essential.
Embodiment 2
The present invention provides a kind of extracting method of Geranium Essential, and step is as follows:
(1)The carrying agent for accounting for Flos Pelargonii flower weight 0.6% is sprayed in Flos Pelargonii flower, then Flos Pelargonii flower is added extraction Taking in kettle, continuous cycling extraction carried out with supercritical carbon dioxide fluid, control 40 DEG C of extraction kettle temperature, extracts pressure 22MPa, Flow velocity is 16kg/h, extraction time 4h;The carrying agent is grouped into by each group of following mass fraction:70 parts of ethanol, hexamethylene 3 Part, 0.6 part of dichloroethanes;
(2)CO 2 fluid after extraction is entered separator to carry out separating, and the flow of CO 2 fluid is 10kg/h, point Being that 6MPa, temperature is 40 DEG C from device pressure, 2.5h is extracted, extract is released from separator bottom, after standing, obtain through oil-water separation To Geranium Essential.
Embodiment 3
The present invention provides a kind of extracting method of Geranium Essential, and step is as follows:
(1)The carrying agent for accounting for Flos Pelargonii flower weight 0.4% is sprayed in Flos Pelargonii flower, then Flos Pelargonii flower is added extraction Taking in kettle, continuous cycling extraction carried out with supercritical carbon dioxide fluid, control 35 DEG C of extraction kettle temperature, extracts pressure 18MPa, Flow velocity is 18kg/h, extraction time 2h;The carrying agent is grouped into by each group of following mass fraction:65 parts of ethanol, hexamethylene 5 Part, 0.8 part of dichloroethanes;
(2)CO 2 fluid after extraction is entered separator to carry out separating, and the flow of CO 2 fluid is 13kg/h, point Being that 7MPa, temperature is 38 DEG C from device pressure, 1.5h is extracted, extract is released from separator bottom, after standing, obtain through oil-water separation To Geranium Essential.
With carry agent for ethanol compared with, apply the Geranium Essential purity for preparing of agent that carries of the application to improve 2- 4%.
Compared with supercritical carbon dioxide extraction reaction directly being carried out without carrying agent, apply the carrying agent system of the application The standby quintessence oil purity for obtaining improves 4-6%.
Finally it should be noted that:The preferred embodiments of the present invention are the foregoing is only, the present invention are not limited to, Although being described in detail to the present invention with reference to the foregoing embodiments, for a person skilled in the art, which still may be used To modify to the technical scheme described in foregoing embodiments, or equivalent is carried out to which part technical characteristic. All any modification, equivalent substitution and improvement that within the spirit and principles in the present invention, is made etc., should be included in the present invention's Within protection domain.

Claims (2)

1. a kind of extracting method of Geranium Essential, it is characterised in that:Step is as follows:
(1)The carrying agent for accounting for Flos Pelargonii flower weight 0.4-0.6% is sprayed in Flos Pelargonii flower, then Flos Pelargonii flower is added Entering in extraction kettle, continuous cycling extraction is carried out with supercritical carbon dioxide fluid, controls extraction kettle temperature 35-40 DEG C, extraction pressure Strong 18-22MPa, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity is 16-18kg/h, extraction time 2-4h, flow velocity;The carrying agent is grouped into by each group of following mass fraction: Ethanol 65-70 part, hexamethylene 3-5 part, dichloroethanes 0.6-0.8 part;
(2)CO 2 fluid after extraction is entered separator to carry out separating, and the flow of CO 2 fluid is 10-13kg/ H, separator pressure is that 6-7MPa, temperature is 38-42 DEG C, extracts 1.5-2.5h, releases extract, standing from separator bottom Afterwards, through oil-water separation, Geranium Essential is obtained.
2. method according to claim 1, it is characterised in that:Step is as follows:
(1)The carrying agent for accounting for Flos Pelargonii flower weight 0.5% is sprayed in Flos Pelargonii flower, then Flos Pelargonii flower is added extraction Taking in kettle, continuous cycling extraction carried out with supercritical carbon dioxide fluid, control 38 DEG C of extraction kettle temperature, extracts pressure 20MPa, Flow velocity is 17kg/h, extraction time 3h;The carrying agent is grouped into by each group of following mass fraction:68 parts of ethanol, hexamethylene 4 Part, 0.7 part of dichloroethanes;
(2)CO 2 fluid after extraction is entered separator to carry out separating, and the flow of CO 2 fluid is 12kg/h, point Being that 6.5MPa, temperature is 42 DEG C from device pressure, 2h is extracted, extract is released from separator bottom, after standing, obtain through oil-water separation To Geranium Essential.
CN201610734552.4A 2016-08-28 2016-08-28 Extraction method of geranium essential oil Pending CN106433980A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610734552.4A CN106433980A (en) 2016-08-28 2016-08-28 Extraction method of geranium essential oil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610734552.4A CN106433980A (en) 2016-08-28 2016-08-28 Extraction method of geranium essential oil

Publications (1)

Publication Number Publication Date
CN106433980A true CN106433980A (en) 2017-02-22

Family

ID=58182136

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610734552.4A Pending CN106433980A (en) 2016-08-28 2016-08-28 Extraction method of geranium essential oil

Country Status (1)

Country Link
CN (1) CN106433980A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103146483A (en) * 2013-03-21 2013-06-12 红云红河烟草(集团)有限责任公司 Pelargonium roseum extract and application thereof in cigarettes
CN103263078A (en) * 2013-05-23 2013-08-28 红云红河烟草(集团)有限责任公司 Preparation method of low-temperature tobacco material for non-combustion cigarette
CN103330661A (en) * 2013-06-08 2013-10-02 吴江市利达上光制品有限公司 Preparation method of mosquito-repellent perfume
CN103589515A (en) * 2013-10-30 2014-02-19 张秋菊 Supercritical carbon dioxide extraction method of high-purity lavender essential oil

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103146483A (en) * 2013-03-21 2013-06-12 红云红河烟草(集团)有限责任公司 Pelargonium roseum extract and application thereof in cigarettes
CN103263078A (en) * 2013-05-23 2013-08-28 红云红河烟草(集团)有限责任公司 Preparation method of low-temperature tobacco material for non-combustion cigarette
CN103330661A (en) * 2013-06-08 2013-10-02 吴江市利达上光制品有限公司 Preparation method of mosquito-repellent perfume
CN103589515A (en) * 2013-10-30 2014-02-19 张秋菊 Supercritical carbon dioxide extraction method of high-purity lavender essential oil

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
毛海舫等: "《天然香料加工工艺学》", 31 January 2006, 中国轻工业出版社 *

Similar Documents

Publication Publication Date Title
DE60328912D1 (en) USE OF A CENTELLA ASIATICA EXTRACT REACHING MADECASSOSIDE AND TERMINOLOSIDE
CN106398870A (en) Extraction method of pogostemon cablin essential oil
CN106281711A (en) A kind of extracting method of rosemary ethereal oil
CN107129870A (en) A kind of comprehensive method for extracting aroma component in agalloch eaglewood
CN102965198A (en) Method for extracting and processing lavender essential oil
CN102586004B (en) Method for continuously extracting orange oil and limonin from citrus reticulata
CN101785517A (en) Production process of decaffeination tea
CN104830538A (en) Method of extracting tea tree essential oil from tea trees
CN105779129A (en) Method for preparing Artemisia apiacea volatile oil from Artemisia apiacea waste mother liquor, method for preparing byproduct and obtained byproduct
CN106318637A (en) Method for extracting Arabian jasmine flower essential oil
CN106281713A (en) A kind of extracting method of Flos Rosae Rugosae quintessence oil
CN106433980A (en) Extraction method of geranium essential oil
CN106190587A (en) A kind of extracting method of peony essential oil
CN106398871A (en) Extraction method of Matthiola incana essential oil
CN106433979A (en) Method for extracting laurel essential oil
CN106281708A (en) A kind of extracting method of Rhizoma et radix valerianae quintessence oil
CN106221936A (en) A kind of extracting method of oil of Cymbopogon winterianus
CN106281710A (en) A kind of extracting method of tea tree ethereal oil
CN106433978A (en) Extraction method of honeysuckle flower essential oil
CN109423357A (en) A kind of extracting method of Herba Pogostemonis Volatile oil
CN104073355A (en) Extraction method of pogostemon cablin essential oil
CN106281712A (en) A kind of extracting method of Herba Lysimachiae foenum-graeci quintessence oil
CN106244331A (en) A kind of extracting method of yarrow quintessence oil
CN106318636A (en) Extracting method for mint essential oil
CN106318635A (en) Extraction method for clary sage essential oil

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20170222

RJ01 Rejection of invention patent application after publication