참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|
| 반응물 | Citric Acid | HCID 311 | — |
| 반응물 | Hydrochloric Acid | HCID 313 | — |
| 반응물 | Oxalic Acid | HCID 971 | — |
| 반응물 | Phosphoric Acid | HCID 1004 | — |
| 반응물 | Sulfuric Acid | HCID 1118 | — |
| 반응물 | p-Toluenesulfonic acid | HCID 6101 | — |
| 반응물 | Methanesulfonic Acid | HCID 6395 | — |
| 용매 | Acetic Acid | HCID 176 | — |
| 생성물 | Butyrate | HCID 104775 | — |
| 생성물 | 1-Methoxypropan-2-yl 2-methylpropanoate | HCID 228677 | — |
반응 단계
The catalysts used in the present invention include inorganic acids, such as sulfuric acid, hydrochloric acid and phosphoric acid, and organic acids, such as acetic acid, oxalic acid, citric acid, p-toluene sulfonic acid and methane sulfonic acid, among which the strong acids including sulfuric acid, p-toluene sulfonic acid and methane sulfonic acid are preferred. The boiling points of propylene glycol monomethyl ether iso-butyrate and n-butyrate obtained according to the present application are 167.2° C. and 180.5° C., respectively, while other reactants and products having respective boiling point of 120° C. for PGM, 154.4° C. for iso-butyric acid, 164° C. for n-butyric acid and 100° C. for water. It is apparently easier to rectify this solution comparing the respective boiling point of 146° C. for propylene glycol monomethyl ether acetate, 118° C. for acetic acid and 120° C. for PGM as in the conventional case. This is one of the effect achieved by the process according to the present invention.
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| 특허 번호 | US05426214 |
|---|
| 출처 데이터셋 | uspto-grants-1995_06 |
|---|
| ORD ID | ord-2292a2ddea45445f9e07397409476203 |
|---|
| 출처 메모 | uspto-grants-1995_06 |
|---|
